| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.camera; |
| |
| import com.android.camera.ui.CameraPicker; |
| import com.android.camera.ui.FaceView; |
| import com.android.camera.ui.IndicatorControlContainer; |
| import com.android.camera.ui.RotateImageView; |
| import com.android.camera.ui.RotateLayout; |
| import com.android.camera.ui.SharePopup; |
| import com.android.camera.ui.ZoomControl; |
| |
| import android.app.Activity; |
| import android.content.BroadcastReceiver; |
| import android.content.ContentProviderClient; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.SharedPreferences.Editor; |
| import android.graphics.Bitmap; |
| import android.hardware.Camera.CameraInfo; |
| import android.hardware.Camera.Face; |
| import android.hardware.Camera.FaceDetectionListener; |
| import android.hardware.Camera.Parameters; |
| import android.hardware.Camera.PictureCallback; |
| import android.hardware.Camera.Size; |
| import android.location.Location; |
| import android.media.CameraProfile; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.os.MessageQueue; |
| import android.os.SystemClock; |
| import android.provider.MediaStore; |
| import android.util.Log; |
| import android.view.GestureDetector; |
| import android.view.Gravity; |
| import android.view.KeyEvent; |
| import android.view.Menu; |
| import android.view.MenuItem; |
| import android.view.MenuItem.OnMenuItemClickListener; |
| import android.view.MotionEvent; |
| import android.view.OrientationEventListener; |
| import android.view.SurfaceHolder; |
| import android.view.SurfaceView; |
| import android.view.View; |
| import android.view.WindowManager; |
| import android.view.animation.AnimationUtils; |
| import android.widget.TextView; |
| import android.widget.Toast; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.util.Collections; |
| import java.util.Formatter; |
| import java.util.List; |
| |
| /** The Camera activity which can preview and take pictures. */ |
| public class Camera extends ActivityBase implements FocusManager.Listener, |
| View.OnTouchListener, ShutterButton.OnShutterButtonListener, |
| SurfaceHolder.Callback, ModePicker.OnModeChangeListener, |
| FaceDetectionListener, CameraPreference.OnPreferenceChangedListener, |
| LocationManager.Listener { |
| |
| private static final String TAG = "camera"; |
| |
| private static final int CROP_MSG = 1; |
| private static final int FIRST_TIME_INIT = 2; |
| private static final int CLEAR_SCREEN_DELAY = 3; |
| private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 4; |
| private static final int CHECK_DISPLAY_ROTATION = 5; |
| private static final int SHOW_TAP_TO_FOCUS_TOAST = 6; |
| private static final int DISMISS_TAP_TO_FOCUS_TOAST = 7; |
| |
| // The subset of parameters we need to update in setCameraParameters(). |
| private static final int UPDATE_PARAM_INITIALIZE = 1; |
| private static final int UPDATE_PARAM_ZOOM = 2; |
| private static final int UPDATE_PARAM_PREFERENCE = 4; |
| private static final int UPDATE_PARAM_ALL = -1; |
| |
| // When setCameraParametersWhenIdle() is called, we accumulate the subsets |
| // needed to be updated in mUpdateSet. |
| private int mUpdateSet; |
| |
| private static final int SCREEN_DELAY = 2 * 60 * 1000; |
| |
| private static final int ZOOM_STOPPED = 0; |
| private static final int ZOOM_START = 1; |
| private static final int ZOOM_STOPPING = 2; |
| |
| private int mZoomState = ZOOM_STOPPED; |
| private boolean mSmoothZoomSupported = false; |
| private int mZoomValue; // The current zoom value. |
| private int mZoomMax; |
| private int mTargetZoomValue; |
| private ZoomControl mZoomControl; |
| |
| private Parameters mParameters; |
| private Parameters mInitialParams; |
| private boolean mFocusAreaSupported; |
| private boolean mMeteringAreaSupported; |
| |
| private MyOrientationEventListener mOrientationListener; |
| // The degrees of the device rotated clockwise from its natural orientation. |
| private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; |
| // The orientation compensation for icons and thumbnails. Ex: if the value |
| // is 90, the UI components should be rotated 90 degrees counter-clockwise. |
| private int mOrientationCompensation = 0; |
| private ComboPreferences mPreferences; |
| |
| private static final String sTempCropFilename = "crop-temp"; |
| |
| private android.hardware.Camera mCameraDevice; |
| private ContentProviderClient mMediaProviderClient; |
| private SurfaceHolder mSurfaceHolder = null; |
| private ShutterButton mShutterButton; |
| private GestureDetector mPopupGestureDetector; |
| private boolean mOpenCameraFail = false; |
| private boolean mCameraDisabled = false; |
| |
| private View mPreviewPanel; // The container of PreviewFrameLayout. |
| private PreviewFrameLayout mPreviewFrameLayout; |
| private View mPreviewFrame; // Preview frame area. |
| |
| // A popup window that contains a bigger thumbnail and a list of apps to share. |
| private SharePopup mSharePopup; |
| // The bitmap of the last captured picture thumbnail and the URI of the |
| // original picture. |
| private Thumbnail mThumbnail; |
| // An imageview showing showing the last captured picture thumbnail. |
| private RotateImageView mThumbnailView; |
| private ModePicker mModePicker; |
| private FaceView mFaceView; |
| private RotateLayout mFocusIndicator; |
| |
| // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. |
| private String mCropValue; |
| private Uri mSaveUri; |
| |
| // On-screen indicator |
| private View mGpsNoSignalIndicator; |
| private View mGpsHasSignalIndicator; |
| private TextView mExposureIndicator; |
| |
| private final StringBuilder mBuilder = new StringBuilder(); |
| private final Formatter mFormatter = new Formatter(mBuilder); |
| private final Object[] mFormatterArgs = new Object[1]; |
| |
| /** |
| * An unpublished intent flag requesting to return as soon as capturing |
| * is completed. |
| * |
| * TODO: consider publishing by moving into MediaStore. |
| */ |
| private final static String EXTRA_QUICK_CAPTURE = |
| "android.intent.extra.quickCapture"; |
| |
| // The display rotation in degrees. This is only valid when mCameraState is |
| // not PREVIEW_STOPPED. |
| private int mDisplayRotation; |
| // The value for android.hardware.Camera.setDisplayOrientation. |
| private int mDisplayOrientation; |
| private boolean mPausing; |
| private boolean mFirstTimeInitialized; |
| private boolean mIsImageCaptureIntent; |
| |
| private static final int PREVIEW_STOPPED = 0; |
| private static final int IDLE = 1; // preview is active |
| // Focus is in progress. The exact focus state is in Focus.java. |
| private static final int FOCUSING = 2; |
| private static final int SNAPSHOT_IN_PROGRESS = 3; |
| private int mCameraState = PREVIEW_STOPPED; |
| |
| private ContentResolver mContentResolver; |
| private boolean mDidRegister = false; |
| |
| private LocationManager mLocationManager; |
| |
| private final ShutterCallback mShutterCallback = new ShutterCallback(); |
| private final PostViewPictureCallback mPostViewPictureCallback = |
| new PostViewPictureCallback(); |
| private final RawPictureCallback mRawPictureCallback = |
| new RawPictureCallback(); |
| private final AutoFocusCallback mAutoFocusCallback = |
| new AutoFocusCallback(); |
| private final ZoomListener mZoomListener = new ZoomListener(); |
| private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); |
| |
| private long mFocusStartTime; |
| private long mCaptureStartTime; |
| private long mShutterCallbackTime; |
| private long mPostViewPictureCallbackTime; |
| private long mRawPictureCallbackTime; |
| private long mJpegPictureCallbackTime; |
| private long mOnResumeTime; |
| private long mPicturesRemaining; |
| private byte[] mJpegImageData; |
| |
| // These latency time are for the CameraLatency test. |
| public long mAutoFocusTime; |
| public long mShutterLag; |
| public long mShutterToPictureDisplayedTime; |
| public long mPictureDisplayedToJpegCallbackTime; |
| public long mJpegCallbackFinishTime; |
| |
| // This handles everything about focus. |
| private FocusManager mFocusManager; |
| private String mSceneMode; |
| private Toast mNotSelectableToast; |
| private Toast mNoShareToast; |
| |
| private final Handler mHandler = new MainHandler(); |
| private IndicatorControlContainer mIndicatorControlContainer; |
| private PreferenceGroup mPreferenceGroup; |
| |
| // multiple cameras support |
| private int mNumberOfCameras; |
| private int mCameraId; |
| private int mFrontCameraId; |
| private int mBackCameraId; |
| |
| private boolean mQuickCapture; |
| |
| /** |
| * This Handler is used to post message back onto the main thread of the |
| * application |
| */ |
| private class MainHandler extends Handler { |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case CLEAR_SCREEN_DELAY: { |
| getWindow().clearFlags( |
| WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); |
| break; |
| } |
| |
| case FIRST_TIME_INIT: { |
| initializeFirstTime(); |
| break; |
| } |
| |
| case SET_CAMERA_PARAMETERS_WHEN_IDLE: { |
| setCameraParametersWhenIdle(0); |
| break; |
| } |
| |
| case CHECK_DISPLAY_ROTATION: { |
| // Restart the preview if display rotation has changed. |
| // Sometimes this happens when the device is held upside |
| // down and camera app is opened. Rotation animation will |
| // take some time and the rotation value we have got may be |
| // wrong. Framework does not have a callback for this now. |
| if (Util.getDisplayRotation(Camera.this) != mDisplayRotation |
| && isCameraIdle()) { |
| startPreview(); |
| } |
| if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { |
| mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); |
| } |
| break; |
| } |
| |
| case SHOW_TAP_TO_FOCUS_TOAST: { |
| showTapToFocusToast(); |
| break; |
| } |
| |
| case DISMISS_TAP_TO_FOCUS_TOAST: { |
| View v = findViewById(R.id.tap_to_focus_prompt); |
| v.setVisibility(View.GONE); |
| v.setAnimation(AnimationUtils.loadAnimation(Camera.this, |
| R.anim.on_screen_hint_exit)); |
| break; |
| } |
| } |
| } |
| } |
| |
| private void resetExposureCompensation() { |
| String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, |
| CameraSettings.EXPOSURE_DEFAULT_VALUE); |
| if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { |
| Editor editor = mPreferences.edit(); |
| editor.putString(CameraSettings.KEY_EXPOSURE, "0"); |
| editor.apply(); |
| if (mIndicatorControlContainer != null) { |
| mIndicatorControlContainer.reloadPreferences(); |
| } |
| } |
| } |
| |
| private void keepMediaProviderInstance() { |
| // We want to keep a reference to MediaProvider in camera's lifecycle. |
| // TODO: Utilize mMediaProviderClient instance to replace |
| // ContentResolver calls. |
| if (mMediaProviderClient == null) { |
| mMediaProviderClient = getContentResolver() |
| .acquireContentProviderClient(MediaStore.AUTHORITY); |
| } |
| } |
| |
| // Snapshots can only be taken after this is called. It should be called |
| // once only. We could have done these things in onCreate() but we want to |
| // make preview screen appear as soon as possible. |
| private void initializeFirstTime() { |
| if (mFirstTimeInitialized) return; |
| |
| // Create orientation listenter. This should be done first because it |
| // takes some time to get first orientation. |
| mOrientationListener = new MyOrientationEventListener(Camera.this); |
| mOrientationListener.enable(); |
| |
| // Initialize location sevice. |
| boolean recordLocation = RecordLocationPreference.get( |
| mPreferences, getContentResolver()); |
| initOnScreenIndicator(); |
| mLocationManager.recordLocation(recordLocation); |
| |
| keepMediaProviderInstance(); |
| checkStorage(); |
| |
| // Initialize last picture button. |
| mContentResolver = getContentResolver(); |
| if (!mIsImageCaptureIntent) { // no thumbnail in image capture intent |
| initThumbnailButton(); |
| } |
| |
| // Initialize shutter button. |
| mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); |
| mShutterButton.setOnShutterButtonListener(this); |
| mShutterButton.setVisibility(View.VISIBLE); |
| |
| // Initialize focus UI. |
| mPreviewFrame = findViewById(R.id.camera_preview); |
| mPreviewFrame.setOnTouchListener(this); |
| mFocusIndicator = (RotateLayout) findViewById(R.id.focus_indicator_rotate_layout); |
| mFocusManager.initialize(mFocusIndicator, mPreviewFrame, mFaceView, this); |
| mFocusManager.initializeToneGenerator(); |
| Util.initializeScreenBrightness(getWindow(), getContentResolver()); |
| installIntentFilter(); |
| initializeZoom(); |
| // Show the tap to focus toast if this is the first start. |
| if (mFocusAreaSupported && |
| mPreferences.getBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, true)) { |
| // Delay the toast for one second to wait for orientation. |
| mHandler.sendEmptyMessageDelayed(SHOW_TAP_TO_FOCUS_TOAST, 1000); |
| } |
| |
| mFirstTimeInitialized = true; |
| addIdleHandler(); |
| } |
| |
| private void addIdleHandler() { |
| MessageQueue queue = Looper.myQueue(); |
| queue.addIdleHandler(new MessageQueue.IdleHandler() { |
| public boolean queueIdle() { |
| Storage.ensureOSXCompatible(); |
| return false; |
| } |
| }); |
| } |
| |
| private void initThumbnailButton() { |
| // Load the thumbnail from the disk. |
| mThumbnail = Thumbnail.loadFrom(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); |
| updateThumbnailButton(); |
| } |
| |
| private void updateThumbnailButton() { |
| // Update last image if URI is invalid and the storage is ready. |
| if ((mThumbnail == null || !Util.isUriValid(mThumbnail.getUri(), mContentResolver)) |
| && mPicturesRemaining >= 0) { |
| mThumbnail = Thumbnail.getLastThumbnail(mContentResolver); |
| } |
| if (mThumbnail != null) { |
| mThumbnailView.setBitmap(mThumbnail.getBitmap()); |
| } else { |
| mThumbnailView.setBitmap(null); |
| } |
| } |
| |
| // If the activity is paused and resumed, this method will be called in |
| // onResume. |
| private void initializeSecondTime() { |
| // Start orientation listener as soon as possible because it takes |
| // some time to get first orientation. |
| mOrientationListener.enable(); |
| |
| // Start location update if needed. |
| boolean recordLocation = RecordLocationPreference.get( |
| mPreferences, getContentResolver()); |
| mLocationManager.recordLocation(recordLocation); |
| |
| installIntentFilter(); |
| mFocusManager.initializeToneGenerator(); |
| initializeZoom(); |
| keepMediaProviderInstance(); |
| checkStorage(); |
| hidePostCaptureAlert(); |
| |
| if (!mIsImageCaptureIntent) { |
| updateThumbnailButton(); |
| mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); |
| } |
| } |
| |
| private class ZoomChangeListener implements ZoomControl.OnZoomChangedListener { |
| // only for immediate zoom |
| @Override |
| public void onZoomValueChanged(int index) { |
| Camera.this.onZoomValueChanged(index); |
| } |
| |
| // only for smooth zoom |
| @Override |
| public void onZoomStateChanged(int state) { |
| if (mPausing) return; |
| |
| Log.v(TAG, "zoom picker state=" + state); |
| if (state == ZoomControl.ZOOM_IN) { |
| Camera.this.onZoomValueChanged(mZoomMax); |
| } else if (state == ZoomControl.ZOOM_OUT) { |
| Camera.this.onZoomValueChanged(0); |
| } else { |
| mTargetZoomValue = -1; |
| if (mZoomState == ZOOM_START) { |
| mZoomState = ZOOM_STOPPING; |
| mCameraDevice.stopSmoothZoom(); |
| } |
| } |
| } |
| } |
| |
| private void initializeZoom() { |
| // Get the parameter to make sure we have the up-to-date zoom value. |
| mParameters = mCameraDevice.getParameters(); |
| if (!mParameters.isZoomSupported()) return; |
| mZoomMax = mParameters.getMaxZoom(); |
| // Currently we use immediate zoom for fast zooming to get better UX and |
| // there is no plan to take advantage of the smooth zoom. |
| mZoomControl.setZoomMax(mZoomMax); |
| mZoomControl.setZoomIndex(mParameters.getZoom()); |
| mZoomControl.setSmoothZoomSupported(mSmoothZoomSupported); |
| mZoomControl.setOnZoomChangeListener(new ZoomChangeListener()); |
| mCameraDevice.setZoomChangeListener(mZoomListener); |
| } |
| |
| private void onZoomValueChanged(int index) { |
| // Not useful to change zoom value when the activity is paused. |
| if (mPausing) return; |
| |
| if (mSmoothZoomSupported) { |
| if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { |
| mTargetZoomValue = index; |
| if (mZoomState == ZOOM_START) { |
| mZoomState = ZOOM_STOPPING; |
| mCameraDevice.stopSmoothZoom(); |
| } |
| } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { |
| mTargetZoomValue = index; |
| mCameraDevice.startSmoothZoom(index); |
| mZoomState = ZOOM_START; |
| } |
| } else { |
| mZoomValue = index; |
| setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); |
| } |
| } |
| |
| @Override |
| public void startFaceDetection() { |
| if (mParameters.getMaxNumDetectedFaces() > 0) { |
| mFaceView = (FaceView) findViewById(R.id.face_view); |
| mFaceView.clear(); |
| mFaceView.setVisibility(View.VISIBLE); |
| mFaceView.setDisplayOrientation(mDisplayOrientation); |
| CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; |
| mFaceView.setMirror(info.facing == CameraInfo.CAMERA_FACING_FRONT); |
| mFaceView.resume(); |
| mCameraDevice.setFaceDetectionListener(this); |
| mCameraDevice.startFaceDetection(); |
| } |
| } |
| |
| @Override |
| public void stopFaceDetection() { |
| if (mParameters.getMaxNumDetectedFaces() > 0) { |
| mCameraDevice.setFaceDetectionListener(null); |
| mCameraDevice.stopFaceDetection(); |
| if (mFaceView != null) mFaceView.clear(); |
| } |
| } |
| |
| private class PopupGestureListener |
| extends GestureDetector.SimpleOnGestureListener { |
| @Override |
| public boolean onDown(MotionEvent e) { |
| // Check if the popup window is visible. |
| View popup = mIndicatorControlContainer.getActiveSettingPopup(); |
| if (popup == null) return false; |
| |
| |
| // Let popup window, indicator control or preview frame handle the |
| // event by themselves. Dismiss the popup window if users touch on |
| // other areas. |
| if (!Util.pointInView(e.getX(), e.getY(), popup) |
| && !Util.pointInView(e.getX(), e.getY(), mIndicatorControlContainer) |
| && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { |
| mIndicatorControlContainer.dismissSettingPopup(); |
| // Let event fall through. |
| } |
| return false; |
| } |
| } |
| |
| @Override |
| public boolean dispatchTouchEvent(MotionEvent m) { |
| // Check if the popup window should be dismissed first. |
| if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { |
| return true; |
| } |
| |
| return super.dispatchTouchEvent(m); |
| } |
| |
| private final BroadcastReceiver mReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| Log.d(TAG, "Received intent action=" + action); |
| if (action.equals(Intent.ACTION_MEDIA_MOUNTED) |
| || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) |
| || action.equals(Intent.ACTION_MEDIA_CHECKING)) { |
| checkStorage(); |
| } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { |
| checkStorage(); |
| if (!mIsImageCaptureIntent) { |
| updateThumbnailButton(); |
| } |
| } |
| } |
| }; |
| |
| private void initOnScreenIndicator() { |
| mGpsNoSignalIndicator = findViewById(R.id.onscreen_gps_indicator_no_signal); |
| mGpsHasSignalIndicator = findViewById(R.id.onscreen_gps_indicator_on); |
| mExposureIndicator = (TextView) findViewById(R.id.onscreen_exposure_indicator); |
| } |
| |
| @Override |
| public void showGpsOnScreenIndicator(boolean hasSignal) { |
| if (hasSignal) { |
| if (mGpsNoSignalIndicator != null) { |
| mGpsNoSignalIndicator.setVisibility(View.GONE); |
| } |
| if (mGpsHasSignalIndicator != null) { |
| mGpsHasSignalIndicator.setVisibility(View.VISIBLE); |
| } |
| } else { |
| if (mGpsNoSignalIndicator != null) { |
| mGpsNoSignalIndicator.setVisibility(View.VISIBLE); |
| } |
| if (mGpsHasSignalIndicator != null) { |
| mGpsHasSignalIndicator.setVisibility(View.GONE); |
| } |
| } |
| } |
| |
| @Override |
| public void hideGpsOnScreenIndicator() { |
| if (mGpsNoSignalIndicator != null) mGpsNoSignalIndicator.setVisibility(View.GONE); |
| if (mGpsHasSignalIndicator != null) mGpsHasSignalIndicator.setVisibility(View.GONE); |
| } |
| |
| private void updateExposureOnScreenIndicator(int value) { |
| if (mExposureIndicator == null) return; |
| |
| if (value == 0) { |
| mExposureIndicator.setText(""); |
| mExposureIndicator.setVisibility(View.GONE); |
| } else { |
| float step = mParameters.getExposureCompensationStep(); |
| mFormatterArgs[0] = value * step; |
| mBuilder.delete(0, mBuilder.length()); |
| mFormatter.format("%+1.1f", mFormatterArgs); |
| String exposure = mFormatter.toString(); |
| mExposureIndicator.setText(exposure); |
| mExposureIndicator.setVisibility(View.VISIBLE); |
| } |
| } |
| |
| private final class ShutterCallback |
| implements android.hardware.Camera.ShutterCallback { |
| public void onShutter() { |
| mShutterCallbackTime = System.currentTimeMillis(); |
| mShutterLag = mShutterCallbackTime - mCaptureStartTime; |
| Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); |
| mFocusManager.onShutter(); |
| } |
| } |
| |
| private final class PostViewPictureCallback implements PictureCallback { |
| public void onPictureTaken( |
| byte [] data, android.hardware.Camera camera) { |
| mPostViewPictureCallbackTime = System.currentTimeMillis(); |
| Log.v(TAG, "mShutterToPostViewCallbackTime = " |
| + (mPostViewPictureCallbackTime - mShutterCallbackTime) |
| + "ms"); |
| } |
| } |
| |
| private final class RawPictureCallback implements PictureCallback { |
| public void onPictureTaken( |
| byte [] rawData, android.hardware.Camera camera) { |
| mRawPictureCallbackTime = System.currentTimeMillis(); |
| Log.v(TAG, "mShutterToRawCallbackTime = " |
| + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); |
| } |
| } |
| |
| private final class JpegPictureCallback implements PictureCallback { |
| Location mLocation; |
| |
| public JpegPictureCallback(Location loc) { |
| mLocation = loc; |
| } |
| |
| public void onPictureTaken( |
| final byte [] jpegData, final android.hardware.Camera camera) { |
| if (mPausing) { |
| return; |
| } |
| |
| mJpegPictureCallbackTime = System.currentTimeMillis(); |
| // If postview callback has arrived, the captured image is displayed |
| // in postview callback. If not, the captured image is displayed in |
| // raw picture callback. |
| if (mPostViewPictureCallbackTime != 0) { |
| mShutterToPictureDisplayedTime = |
| mPostViewPictureCallbackTime - mShutterCallbackTime; |
| mPictureDisplayedToJpegCallbackTime = |
| mJpegPictureCallbackTime - mPostViewPictureCallbackTime; |
| } else { |
| mShutterToPictureDisplayedTime = |
| mRawPictureCallbackTime - mShutterCallbackTime; |
| mPictureDisplayedToJpegCallbackTime = |
| mJpegPictureCallbackTime - mRawPictureCallbackTime; |
| } |
| Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " |
| + mPictureDisplayedToJpegCallbackTime + "ms"); |
| |
| if (!mIsImageCaptureIntent) { |
| enableCameraControls(true); |
| |
| startPreview(); |
| } |
| |
| if (!mIsImageCaptureIntent) { |
| Size s = mParameters.getPictureSize(); |
| storeImage(jpegData, mLocation, s.width, s.height); |
| } else { |
| mJpegImageData = jpegData; |
| if (!mQuickCapture) { |
| showPostCaptureAlert(); |
| } else { |
| doAttach(); |
| } |
| } |
| |
| // Check this in advance of each shot so we don't add to shutter |
| // latency. It's true that someone else could write to the SD card in |
| // the mean time and fill it, but that could have happened between the |
| // shutter press and saving the JPEG too. |
| checkStorage(); |
| |
| long now = System.currentTimeMillis(); |
| mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; |
| Log.v(TAG, "mJpegCallbackFinishTime = " |
| + mJpegCallbackFinishTime + "ms"); |
| mJpegPictureCallbackTime = 0; |
| } |
| } |
| |
| private final class AutoFocusCallback |
| implements android.hardware.Camera.AutoFocusCallback { |
| public void onAutoFocus( |
| boolean focused, android.hardware.Camera camera) { |
| if (mPausing) return; |
| |
| mAutoFocusTime = System.currentTimeMillis() - mFocusStartTime; |
| Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); |
| mFocusManager.onAutoFocus(focused); |
| // If focus completes and the snapshot is not started, enable the |
| // controls. |
| if (mFocusManager.isFocusCompleted()) { |
| enableCameraControls(true); |
| } |
| } |
| } |
| |
| private final class ZoomListener |
| implements android.hardware.Camera.OnZoomChangeListener { |
| @Override |
| public void onZoomChange( |
| int value, boolean stopped, android.hardware.Camera camera) { |
| Log.v(TAG, "Zoom changed: value=" + value + ". stopped=" + stopped); |
| mZoomValue = value; |
| |
| // Update the UI when we get zoom value. |
| mZoomControl.setZoomIndex(value); |
| |
| // Keep mParameters up to date. We do not getParameter again in |
| // takePicture. If we do not do this, wrong zoom value will be set. |
| mParameters.setZoom(value); |
| |
| if (stopped && mZoomState != ZOOM_STOPPED) { |
| if (mTargetZoomValue != -1 && value != mTargetZoomValue) { |
| mCameraDevice.startSmoothZoom(mTargetZoomValue); |
| mZoomState = ZOOM_START; |
| } else { |
| mZoomState = ZOOM_STOPPED; |
| } |
| } |
| } |
| } |
| |
| private void storeImage(final byte[] data, Location loc, int width, int height) { |
| long dateTaken = System.currentTimeMillis(); |
| String title = Util.createJpegName(dateTaken); |
| int orientation = Exif.getOrientation(data); |
| Uri uri = Storage.addImage(mContentResolver, title, dateTaken, |
| loc, orientation, data, width, height); |
| if (uri != null) { |
| // Create a thumbnail whose width is equal or bigger than that of the preview. |
| int ratio = (int) Math.ceil((double) mParameters.getPictureSize().width |
| / mPreviewFrameLayout.getWidth()); |
| int inSampleSize = Integer.highestOneBit(ratio); |
| mThumbnail = Thumbnail.createThumbnail(data, orientation, inSampleSize, uri); |
| if (mThumbnail != null) { |
| mThumbnailView.setBitmap(mThumbnail.getBitmap()); |
| } |
| // Share popup may still have the reference to the old thumbnail. Clear it. |
| mSharePopup = null; |
| Util.broadcastNewPicture(this, uri); |
| } |
| } |
| |
| @Override |
| public boolean capture() { |
| // If we are already in the middle of taking a snapshot then ignore. |
| if (mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { |
| return false; |
| } |
| mCaptureStartTime = System.currentTimeMillis(); |
| mPostViewPictureCallbackTime = 0; |
| enableCameraControls(false); |
| mJpegImageData = null; |
| |
| // Set rotation and gps data. |
| Util.setRotationParameter(mParameters, mCameraId, mOrientation); |
| Location loc = mLocationManager.getCurrentLocation(); |
| Util.setGpsParameters(mParameters, loc); |
| mCameraDevice.setParameters(mParameters); |
| |
| mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, |
| mPostViewPictureCallback, new JpegPictureCallback(loc)); |
| mCameraState = SNAPSHOT_IN_PROGRESS; |
| return true; |
| } |
| |
| @Override |
| public void setFocusParameters() { |
| setCameraParameters(UPDATE_PARAM_PREFERENCE); |
| } |
| |
| private boolean saveDataToFile(String filePath, byte[] data) { |
| FileOutputStream f = null; |
| try { |
| f = new FileOutputStream(filePath); |
| f.write(data); |
| } catch (IOException e) { |
| return false; |
| } finally { |
| Util.closeSilently(f); |
| } |
| return true; |
| } |
| |
| @Override |
| public void onCreate(Bundle icicle) { |
| super.onCreate(icicle); |
| |
| mIsImageCaptureIntent = isImageCaptureIntent(); |
| setContentView(R.layout.camera); |
| if (mIsImageCaptureIntent) { |
| findViewById(R.id.btn_cancel).setVisibility(View.VISIBLE); |
| } else { |
| mThumbnailView = (RotateImageView) findViewById(R.id.thumbnail); |
| mThumbnailView.setVisibility(View.VISIBLE); |
| } |
| |
| mPreferences = new ComboPreferences(this); |
| CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); |
| mFocusManager = new FocusManager(mPreferences, |
| getString(R.string.pref_camera_focusmode_default)); |
| |
| mCameraId = CameraSettings.readPreferredCameraId(mPreferences); |
| |
| // Testing purpose. Launch a specific camera through the intent extras. |
| int intentCameraId = Util.getCameraFacingIntentExtras(this); |
| if (intentCameraId != -1) { |
| mCameraId = intentCameraId; |
| } |
| |
| mPreferences.setLocalId(this, mCameraId); |
| CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); |
| |
| mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); |
| mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); |
| |
| // we need to reset exposure for the preview |
| resetExposureCompensation(); |
| |
| /* |
| * To reduce startup time, we start the preview in another thread. |
| * We make sure the preview is started at the end of onCreate. |
| */ |
| Thread startPreviewThread = new Thread(new Runnable() { |
| public void run() { |
| try { |
| mCameraDevice = Util.openCamera(Camera.this, mCameraId); |
| initializeCapabilities(); |
| startPreview(); |
| } catch (CameraHardwareException e) { |
| mOpenCameraFail = true; |
| } catch (CameraDisabledException e) { |
| mCameraDisabled = true; |
| } |
| } |
| }); |
| startPreviewThread.start(); |
| |
| Util.enterLightsOutMode(getWindow()); |
| |
| // don't set mSurfaceHolder here. We have it set ONLY within |
| // surfaceChanged / surfaceDestroyed, other parts of the code |
| // assume that when it is set, the surface is also set. |
| SurfaceView preview = (SurfaceView) findViewById(R.id.camera_preview); |
| SurfaceHolder holder = preview.getHolder(); |
| holder.addCallback(this); |
| holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); |
| |
| if (mIsImageCaptureIntent) { |
| setupCaptureParams(); |
| } else { |
| mModePicker = (ModePicker) findViewById(R.id.mode_picker); |
| mModePicker.setVisibility(View.VISIBLE); |
| mModePicker.setOnModeChangeListener(this); |
| mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); |
| } |
| |
| mZoomControl = (ZoomControl) findViewById(R.id.zoom_control); |
| mLocationManager = new LocationManager(this, this); |
| |
| // Make sure preview is started. |
| try { |
| startPreviewThread.join(); |
| if (mOpenCameraFail) { |
| Util.showErrorAndFinish(this, R.string.cannot_connect_camera); |
| return; |
| } else if (mCameraDisabled) { |
| Util.showErrorAndFinish(this, R.string.camera_disabled); |
| return; |
| } |
| } catch (InterruptedException ex) { |
| // ignore |
| } |
| |
| mBackCameraId = CameraHolder.instance().getBackCameraId(); |
| mFrontCameraId = CameraHolder.instance().getFrontCameraId(); |
| |
| // Do this after starting preview because it depends on camera |
| // parameters. |
| initializeIndicatorControl(); |
| } |
| |
| private void overrideCameraSettings(final String flashMode, |
| final String whiteBalance, final String focusMode) { |
| if (mIndicatorControlContainer != null) { |
| mIndicatorControlContainer.overrideSettings( |
| CameraSettings.KEY_FLASH_MODE, flashMode, |
| CameraSettings.KEY_WHITE_BALANCE, whiteBalance, |
| CameraSettings.KEY_FOCUS_MODE, focusMode); |
| } |
| } |
| |
| private void updateSceneModeUI() { |
| // If scene mode is set, we cannot set flash mode, white balance, and |
| // focus mode, instead, we read it from driver |
| if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { |
| overrideCameraSettings(mParameters.getFlashMode(), |
| mParameters.getWhiteBalance(), mParameters.getFocusMode()); |
| } else { |
| overrideCameraSettings(null, null, null); |
| } |
| } |
| |
| private void loadCameraPreferences() { |
| CameraSettings settings = new CameraSettings(this, mInitialParams, |
| mCameraId, CameraHolder.instance().getCameraInfo()); |
| mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); |
| } |
| |
| private void initializeIndicatorControl() { |
| // setting the indicator buttons. |
| mIndicatorControlContainer = |
| (IndicatorControlContainer) findViewById(R.id.indicator_control); |
| if (mIndicatorControlContainer == null) return; |
| loadCameraPreferences(); |
| final String[] SETTING_KEYS = { |
| CameraSettings.KEY_FLASH_MODE, |
| CameraSettings.KEY_WHITE_BALANCE, |
| CameraSettings.KEY_EXPOSURE, |
| CameraSettings.KEY_SCENE_MODE}; |
| final String[] OTHER_SETTING_KEYS = { |
| CameraSettings.KEY_RECORD_LOCATION, |
| CameraSettings.KEY_PICTURE_SIZE, |
| CameraSettings.KEY_FOCUS_MODE}; |
| |
| CameraPicker.setImageResourceId(R.drawable.ic_switch_photo_facing_holo_light); |
| mIndicatorControlContainer.initialize(this, mPreferenceGroup, |
| mParameters.isZoomSupported(), |
| SETTING_KEYS, OTHER_SETTING_KEYS); |
| updateSceneModeUI(); |
| mIndicatorControlContainer.setListener(this); |
| } |
| |
| private boolean collapseCameraControls() { |
| if ((mIndicatorControlContainer != null) |
| && mIndicatorControlContainer.dismissSettingPopup()) { |
| return true; |
| } |
| return false; |
| } |
| |
| private void enableCameraControls(boolean enable) { |
| if (mIndicatorControlContainer != null) { |
| mIndicatorControlContainer.setEnabled(enable); |
| } |
| if (mModePicker != null) mModePicker.setEnabled(enable); |
| if (mZoomControl != null) mZoomControl.setEnabled(enable); |
| } |
| |
| public static int roundOrientation(int orientation) { |
| return ((orientation + 45) / 90 * 90) % 360; |
| } |
| |
| private class MyOrientationEventListener |
| extends OrientationEventListener { |
| public MyOrientationEventListener(Context context) { |
| super(context); |
| } |
| |
| @Override |
| public void onOrientationChanged(int orientation) { |
| // We keep the last known orientation. So if the user first orient |
| // the camera then point the camera to floor or sky, we still have |
| // the correct orientation. |
| if (orientation == ORIENTATION_UNKNOWN) return; |
| mOrientation = roundOrientation(orientation); |
| // When the screen is unlocked, display rotation may change. Always |
| // calculate the up-to-date orientationCompensation. |
| int orientationCompensation = mOrientation |
| + Util.getDisplayRotation(Camera.this); |
| if (mOrientationCompensation != orientationCompensation) { |
| mOrientationCompensation = orientationCompensation; |
| setOrientationIndicator(mOrientationCompensation); |
| } |
| |
| // Show the toast after getting the first orientation changed. |
| if (mHandler.hasMessages(SHOW_TAP_TO_FOCUS_TOAST)) { |
| mHandler.removeMessages(SHOW_TAP_TO_FOCUS_TOAST); |
| showTapToFocusToast(); |
| } |
| } |
| } |
| |
| private void setOrientationIndicator(int degree) { |
| if (mThumbnailView != null) mThumbnailView.setDegree(degree); |
| if (mModePicker != null) mModePicker.setDegree(degree); |
| if (mSharePopup != null) mSharePopup.setOrientation(degree); |
| if (mIndicatorControlContainer != null) mIndicatorControlContainer.setDegree(degree); |
| if (mZoomControl != null) mZoomControl.setDegree(degree); |
| if (mFocusIndicator != null) mFocusIndicator.setOrientation(degree); |
| if (mFaceView != null) mFaceView.setOrientation(degree); |
| } |
| |
| @Override |
| public void onStop() { |
| super.onStop(); |
| if (mMediaProviderClient != null) { |
| mMediaProviderClient.release(); |
| mMediaProviderClient = null; |
| } |
| } |
| |
| private void checkStorage() { |
| mPicturesRemaining = Storage.getAvailableSpace(); |
| if (mPicturesRemaining > 0) { |
| mPicturesRemaining /= 1500000; |
| } |
| updateStorageHint(); |
| } |
| |
| @OnClickAttr |
| public void onThumbnailClicked(View v) { |
| if (isCameraIdle() && mThumbnail != null) { |
| showSharePopup(); |
| } |
| } |
| |
| @OnClickAttr |
| public void onRetakeButtonClicked(View v) { |
| hidePostCaptureAlert(); |
| startPreview(); |
| } |
| |
| @OnClickAttr |
| public void onDoneButtonClicked(View v) { |
| doAttach(); |
| } |
| |
| @OnClickAttr |
| public void onCancelButtonClicked(View v) { |
| doCancel(); |
| } |
| |
| private void doAttach() { |
| if (mPausing) { |
| return; |
| } |
| |
| byte[] data = mJpegImageData; |
| |
| if (mCropValue == null) { |
| // First handle the no crop case -- just return the value. If the |
| // caller specifies a "save uri" then write the data to it's |
| // stream. Otherwise, pass back a scaled down version of the bitmap |
| // directly in the extras. |
| if (mSaveUri != null) { |
| OutputStream outputStream = null; |
| try { |
| outputStream = mContentResolver.openOutputStream(mSaveUri); |
| outputStream.write(data); |
| outputStream.close(); |
| |
| setResultEx(RESULT_OK); |
| finish(); |
| } catch (IOException ex) { |
| // ignore exception |
| } finally { |
| Util.closeSilently(outputStream); |
| } |
| } else { |
| int orientation = Exif.getOrientation(data); |
| Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); |
| bitmap = Util.rotate(bitmap, orientation); |
| setResultEx(RESULT_OK, |
| new Intent("inline-data").putExtra("data", bitmap)); |
| finish(); |
| } |
| } else { |
| // Save the image to a temp file and invoke the cropper |
| Uri tempUri = null; |
| FileOutputStream tempStream = null; |
| try { |
| File path = getFileStreamPath(sTempCropFilename); |
| path.delete(); |
| tempStream = openFileOutput(sTempCropFilename, 0); |
| tempStream.write(data); |
| tempStream.close(); |
| tempUri = Uri.fromFile(path); |
| } catch (FileNotFoundException ex) { |
| setResultEx(Activity.RESULT_CANCELED); |
| finish(); |
| return; |
| } catch (IOException ex) { |
| setResultEx(Activity.RESULT_CANCELED); |
| finish(); |
| return; |
| } finally { |
| Util.closeSilently(tempStream); |
| } |
| |
| Bundle newExtras = new Bundle(); |
| if (mCropValue.equals("circle")) { |
| newExtras.putString("circleCrop", "true"); |
| } |
| if (mSaveUri != null) { |
| newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); |
| } else { |
| newExtras.putBoolean("return-data", true); |
| } |
| |
| Intent cropIntent = new Intent("com.android.camera.action.CROP"); |
| |
| cropIntent.setData(tempUri); |
| cropIntent.putExtras(newExtras); |
| |
| startActivityForResult(cropIntent, CROP_MSG); |
| } |
| } |
| |
| private void doCancel() { |
| setResultEx(RESULT_CANCELED, new Intent()); |
| finish(); |
| } |
| |
| public void onShutterButtonFocus(ShutterButton button, boolean pressed) { |
| switch (button.getId()) { |
| case R.id.shutter_button: |
| doFocus(pressed); |
| break; |
| } |
| } |
| |
| public void onShutterButtonClick(ShutterButton button) { |
| switch (button.getId()) { |
| case R.id.shutter_button: |
| doSnap(); |
| break; |
| } |
| } |
| |
| private OnScreenHint mStorageHint; |
| |
| private void updateStorageHint() { |
| String noStorageText = null; |
| |
| if (mPicturesRemaining == Storage.UNAVAILABLE) { |
| noStorageText = getString(R.string.no_storage); |
| } else if (mPicturesRemaining == Storage.PREPARING) { |
| noStorageText = getString(R.string.preparing_sd); |
| } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { |
| noStorageText = getString(R.string.access_sd_fail); |
| } else if (mPicturesRemaining < 1L) { |
| noStorageText = getString(R.string.not_enough_space); |
| } |
| |
| if (noStorageText != null) { |
| if (mStorageHint == null) { |
| mStorageHint = OnScreenHint.makeText(this, noStorageText); |
| } else { |
| mStorageHint.setText(noStorageText); |
| } |
| mStorageHint.show(); |
| } else if (mStorageHint != null) { |
| mStorageHint.cancel(); |
| mStorageHint = null; |
| } |
| } |
| |
| private void installIntentFilter() { |
| // install an intent filter to receive SD card related events. |
| IntentFilter intentFilter = |
| new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); |
| intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); |
| intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); |
| intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); |
| intentFilter.addDataScheme("file"); |
| registerReceiver(mReceiver, intentFilter); |
| mDidRegister = true; |
| } |
| |
| @Override |
| protected void onResume() { |
| super.onResume(); |
| mPausing = false; |
| if (mOpenCameraFail || mCameraDisabled) return; |
| |
| mJpegPictureCallbackTime = 0; |
| mZoomValue = 0; |
| |
| // Start the preview if it is not started. |
| if (mCameraState == PREVIEW_STOPPED) { |
| try { |
| mCameraDevice = Util.openCamera(this, mCameraId); |
| initializeCapabilities(); |
| resetExposureCompensation(); |
| startPreview(); |
| } catch (CameraHardwareException e) { |
| Util.showErrorAndFinish(this, R.string.cannot_connect_camera); |
| return; |
| } catch (CameraDisabledException e) { |
| Util.showErrorAndFinish(this, R.string.camera_disabled); |
| return; |
| } |
| } |
| |
| if (mSurfaceHolder != null) { |
| // If first time initialization is not finished, put it in the |
| // message queue. |
| if (!mFirstTimeInitialized) { |
| mHandler.sendEmptyMessage(FIRST_TIME_INIT); |
| } else { |
| initializeSecondTime(); |
| } |
| } |
| keepScreenOnAwhile(); |
| |
| if (mCameraState == IDLE) { |
| mOnResumeTime = SystemClock.uptimeMillis(); |
| mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); |
| } |
| } |
| |
| @Override |
| protected void onPause() { |
| mPausing = true; |
| stopPreview(); |
| // Close the camera now because other activities may need to use it. |
| closeCamera(); |
| resetScreenOn(); |
| |
| // Clear UI. |
| collapseCameraControls(); |
| if (mSharePopup != null) mSharePopup.dismiss(); |
| if (mFaceView != null) mFaceView.clear(); |
| |
| if (mFirstTimeInitialized) { |
| mOrientationListener.disable(); |
| if (!mIsImageCaptureIntent && mThumbnail != null && !mThumbnail.fromFile()) { |
| mThumbnail.saveTo(new File(getFilesDir(), Thumbnail.LAST_THUMB_FILENAME)); |
| } |
| } |
| |
| if (mDidRegister) { |
| unregisterReceiver(mReceiver); |
| mDidRegister = false; |
| } |
| mLocationManager.recordLocation(false); |
| updateExposureOnScreenIndicator(0); |
| |
| mFocusManager.releaseToneGenerator(); |
| |
| if (mStorageHint != null) { |
| mStorageHint.cancel(); |
| mStorageHint = null; |
| } |
| |
| // If we are in an image capture intent and has taken |
| // a picture, we just clear it in onPause. |
| mJpegImageData = null; |
| |
| // Remove the messages in the event queue. |
| mHandler.removeMessages(FIRST_TIME_INIT); |
| mHandler.removeMessages(CHECK_DISPLAY_ROTATION); |
| mFocusManager.removeMessages(); |
| |
| super.onPause(); |
| } |
| |
| @Override |
| protected void onActivityResult( |
| int requestCode, int resultCode, Intent data) { |
| switch (requestCode) { |
| case CROP_MSG: { |
| Intent intent = new Intent(); |
| if (data != null) { |
| Bundle extras = data.getExtras(); |
| if (extras != null) { |
| intent.putExtras(extras); |
| } |
| } |
| setResultEx(resultCode, intent); |
| finish(); |
| |
| File path = getFileStreamPath(sTempCropFilename); |
| path.delete(); |
| |
| break; |
| } |
| } |
| } |
| |
| private boolean canTakePicture() { |
| return isCameraIdle() && (mPicturesRemaining > 0); |
| } |
| |
| @Override |
| public void autoFocus() { |
| mFocusStartTime = System.currentTimeMillis(); |
| mCameraDevice.autoFocus(mAutoFocusCallback); |
| mCameraState = FOCUSING; |
| enableCameraControls(false); |
| } |
| |
| @Override |
| public void cancelAutoFocus() { |
| mCameraDevice.cancelAutoFocus(); |
| mCameraState = IDLE; |
| enableCameraControls(true); |
| setCameraParameters(UPDATE_PARAM_PREFERENCE); |
| } |
| |
| // Preview area is touched. Handle touch focus. |
| @Override |
| public boolean onTouch(View v, MotionEvent e) { |
| if (mPausing || mCameraDevice == null || !mFirstTimeInitialized |
| || mCameraState == SNAPSHOT_IN_PROGRESS) { |
| return false; |
| } |
| |
| // Do not trigger touch focus if popup window is opened. |
| if (collapseCameraControls()) return false; |
| |
| // Check if metering area or focus area is supported. |
| if (!mFocusAreaSupported && !mMeteringAreaSupported) return false; |
| |
| return mFocusManager.onTouch(e); |
| } |
| |
| @Override |
| public void onBackPressed() { |
| if (!isCameraIdle()) { |
| // ignore backs while we're taking a picture |
| return; |
| } else if (!collapseCameraControls()) { |
| super.onBackPressed(); |
| } |
| } |
| |
| @Override |
| public boolean onKeyDown(int keyCode, KeyEvent event) { |
| switch (keyCode) { |
| case KeyEvent.KEYCODE_FOCUS: |
| if (mFirstTimeInitialized && event.getRepeatCount() == 0) { |
| doFocus(true); |
| } |
| return true; |
| case KeyEvent.KEYCODE_CAMERA: |
| if (mFirstTimeInitialized && event.getRepeatCount() == 0) { |
| doSnap(); |
| } |
| return true; |
| case KeyEvent.KEYCODE_DPAD_CENTER: |
| // If we get a dpad center event without any focused view, move |
| // the focus to the shutter button and press it. |
| if (mFirstTimeInitialized && event.getRepeatCount() == 0) { |
| // Start auto-focus immediately to reduce shutter lag. After |
| // the shutter button gets the focus, doFocus() will be |
| // called again but it is fine. |
| if (collapseCameraControls()) return true; |
| doFocus(true); |
| if (mShutterButton.isInTouchMode()) { |
| mShutterButton.requestFocusFromTouch(); |
| } else { |
| mShutterButton.requestFocus(); |
| } |
| mShutterButton.setPressed(true); |
| } |
| return true; |
| } |
| |
| return super.onKeyDown(keyCode, event); |
| } |
| |
| @Override |
| public boolean onKeyUp(int keyCode, KeyEvent event) { |
| switch (keyCode) { |
| case KeyEvent.KEYCODE_FOCUS: |
| if (mFirstTimeInitialized) { |
| doFocus(false); |
| } |
| return true; |
| } |
| return super.onKeyUp(keyCode, event); |
| } |
| |
| private void doSnap() { |
| if (mPausing || collapseCameraControls()) return; |
| |
| // Do not take the picture if there is not enough storage. |
| if (mPicturesRemaining <= 0) { |
| Log.i(TAG, "Not enough space or storage not ready. remaining=" + mPicturesRemaining); |
| return; |
| } |
| |
| Log.v(TAG, "doSnap: mCameraState=" + mCameraState); |
| mFocusManager.doSnap(); |
| } |
| |
| private void doFocus(boolean pressed) { |
| if (mPausing || collapseCameraControls() || mCameraState == SNAPSHOT_IN_PROGRESS) return; |
| |
| // Do not do focus if there is not enough storage. |
| if (pressed && !canTakePicture()) return; |
| |
| mFocusManager.doFocus(pressed); |
| } |
| |
| public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { |
| // Make sure we have a surface in the holder before proceeding. |
| if (holder.getSurface() == null) { |
| Log.d(TAG, "holder.getSurface() == null"); |
| return; |
| } |
| |
| Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); |
| |
| // We need to save the holder for later use, even when the mCameraDevice |
| // is null. This could happen if onResume() is invoked after this |
| // function. |
| mSurfaceHolder = holder; |
| |
| // The mCameraDevice will be null if it fails to connect to the camera |
| // hardware. In this case we will show a dialog and then finish the |
| // activity, so it's OK to ignore it. |
| if (mCameraDevice == null) return; |
| |
| // Sometimes surfaceChanged is called after onPause or before onResume. |
| // Ignore it. |
| if (mPausing || isFinishing()) return; |
| |
| // Set preview display if the surface is being created. Preview was |
| // already started. Also restart the preview if display rotation has |
| // changed. Sometimes this happens when the device is held in portrait |
| // and camera app is opened. Rotation animation takes some time and |
| // display rotation in onCreate may not be what we want. |
| if (mCameraState != PREVIEW_STOPPED |
| && (Util.getDisplayRotation(this) == mDisplayRotation) |
| && holder.isCreating()) { |
| // Set preview display if the surface is being created and preview |
| // was already started. That means preview display was set to null |
| // and we need to set it now. |
| setPreviewDisplay(holder); |
| } else { |
| // 1. Restart the preview if the size of surface was changed. The |
| // framework may not support changing preview display on the fly. |
| // 2. Start the preview now if surface was destroyed and preview |
| // stopped. |
| startPreview(); |
| } |
| |
| // If first time initialization is not finished, send a message to do |
| // it later. We want to finish surfaceChanged as soon as possible to let |
| // user see preview first. |
| if (!mFirstTimeInitialized) { |
| mHandler.sendEmptyMessage(FIRST_TIME_INIT); |
| } else { |
| initializeSecondTime(); |
| } |
| } |
| |
| public void surfaceCreated(SurfaceHolder holder) { |
| } |
| |
| public void surfaceDestroyed(SurfaceHolder holder) { |
| stopPreview(); |
| mSurfaceHolder = null; |
| } |
| |
| private void closeCamera() { |
| if (mCameraDevice != null) { |
| mCameraDevice.cancelAutoFocus(); // Reset the focus. |
| CameraHolder.instance().release(); |
| mCameraDevice.setZoomChangeListener(null); |
| mCameraDevice.setFaceDetectionListener(null); |
| mCameraDevice.setErrorCallback(null); |
| mCameraDevice = null; |
| mCameraState = PREVIEW_STOPPED; |
| mFocusManager.onCameraReleased(); |
| } |
| } |
| |
| private void setPreviewDisplay(SurfaceHolder holder) { |
| try { |
| mCameraDevice.setPreviewDisplay(holder); |
| } catch (Throwable ex) { |
| closeCamera(); |
| throw new RuntimeException("setPreviewDisplay failed", ex); |
| } |
| } |
| |
| private void startPreview() { |
| if (mPausing || isFinishing()) return; |
| |
| mFocusManager.resetTouchFocus(); |
| |
| mCameraDevice.setErrorCallback(mErrorCallback); |
| |
| // If we're previewing already, stop the preview first (this will blank |
| // the screen). |
| if (mCameraState != PREVIEW_STOPPED) stopPreview(); |
| |
| setPreviewDisplay(mSurfaceHolder); |
| mDisplayRotation = Util.getDisplayRotation(this); |
| mDisplayOrientation = Util.getDisplayOrientation(mDisplayRotation, mCameraId); |
| mCameraDevice.setDisplayOrientation(mDisplayOrientation); |
| if (mFaceView != null) { |
| mFaceView.setDisplayOrientation(mDisplayOrientation); |
| } |
| setCameraParameters(UPDATE_PARAM_ALL); |
| // If the focus mode is continuous autofocus, call cancelAutoFocus to |
| // resume it because it may have been paused by autoFocus call. |
| if (Parameters.FOCUS_MODE_CONTINUOUS_PICTURE.equals(mParameters.getFocusMode())) { |
| mCameraDevice.cancelAutoFocus(); |
| } |
| |
| try { |
| Log.v(TAG, "startPreview"); |
| mCameraDevice.startPreview(); |
| } catch (Throwable ex) { |
| closeCamera(); |
| throw new RuntimeException("startPreview failed", ex); |
| } |
| |
| startFaceDetection(); |
| mZoomState = ZOOM_STOPPED; |
| mCameraState = IDLE; |
| mFocusManager.onPreviewStarted(); |
| } |
| |
| private void stopPreview() { |
| if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { |
| Log.v(TAG, "stopPreview"); |
| mCameraDevice.stopPreview(); |
| } |
| mCameraState = PREVIEW_STOPPED; |
| mFocusManager.onPreviewStopped(); |
| } |
| |
| private static boolean isSupported(String value, List<String> supported) { |
| return supported == null ? false : supported.indexOf(value) >= 0; |
| } |
| |
| private void updateCameraParametersInitialize() { |
| // Reset preview frame rate to the maximum because it may be lowered by |
| // video camera application. |
| List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); |
| if (frameRates != null) { |
| Integer max = Collections.max(frameRates); |
| mParameters.setPreviewFrameRate(max); |
| } |
| |
| mParameters.setRecordingHint(false); |
| } |
| |
| private void updateCameraParametersZoom() { |
| // Set zoom. |
| if (mParameters.isZoomSupported()) { |
| mParameters.setZoom(mZoomValue); |
| } |
| } |
| |
| private void updateCameraParametersPreference() { |
| if (mFocusAreaSupported) { |
| mParameters.setFocusAreas(mFocusManager.getFocusAreas()); |
| } |
| |
| if (mMeteringAreaSupported) { |
| // Use the same area for focus and metering. |
| mParameters.setMeteringAreas(mFocusManager.getMeteringAreas()); |
| } |
| |
| // Set picture size. |
| String pictureSize = mPreferences.getString( |
| CameraSettings.KEY_PICTURE_SIZE, null); |
| if (pictureSize == null) { |
| CameraSettings.initialCameraPictureSize(this, mParameters); |
| } else { |
| List<Size> supported = mParameters.getSupportedPictureSizes(); |
| CameraSettings.setCameraPictureSize( |
| pictureSize, supported, mParameters); |
| } |
| |
| // Set the preview frame aspect ratio according to the picture size. |
| Size size = mParameters.getPictureSize(); |
| |
| mPreviewPanel = findViewById(R.id.frame_layout); |
| mPreviewFrameLayout = (PreviewFrameLayout) findViewById(R.id.frame); |
| mPreviewFrameLayout.setAspectRatio((double) size.width / size.height); |
| |
| // Set a preview size that is closest to the viewfinder height and has |
| // the right aspect ratio. |
| List<Size> sizes = mParameters.getSupportedPreviewSizes(); |
| Size optimalSize = Util.getOptimalPreviewSize(this, |
| sizes, (double) size.width / size.height); |
| Size original = mParameters.getPreviewSize(); |
| if (!original.equals(optimalSize)) { |
| mParameters.setPreviewSize(optimalSize.width, optimalSize.height); |
| |
| // Zoom related settings will be changed for different preview |
| // sizes, so set and read the parameters to get lastest values |
| mCameraDevice.setParameters(mParameters); |
| mParameters = mCameraDevice.getParameters(); |
| } |
| Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); |
| |
| // Since change scene mode may change supported values, |
| // Set scene mode first, |
| mSceneMode = mPreferences.getString( |
| CameraSettings.KEY_SCENE_MODE, |
| getString(R.string.pref_camera_scenemode_default)); |
| if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { |
| if (!mParameters.getSceneMode().equals(mSceneMode)) { |
| mParameters.setSceneMode(mSceneMode); |
| mCameraDevice.setParameters(mParameters); |
| |
| // Setting scene mode will change the settings of flash mode, |
| // white balance, and focus mode. Here we read back the |
| // parameters, so we can know those settings. |
| mParameters = mCameraDevice.getParameters(); |
| } |
| } else { |
| mSceneMode = mParameters.getSceneMode(); |
| if (mSceneMode == null) { |
| mSceneMode = Parameters.SCENE_MODE_AUTO; |
| } |
| } |
| |
| // Set JPEG quality. |
| int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId, |
| CameraProfile.QUALITY_HIGH); |
| mParameters.setJpegQuality(jpegQuality); |
| |
| // For the following settings, we need to check if the settings are |
| // still supported by latest driver, if not, ignore the settings. |
| |
| // Set exposure compensation |
| int value = CameraSettings.readExposure(mPreferences); |
| int max = mParameters.getMaxExposureCompensation(); |
| int min = mParameters.getMinExposureCompensation(); |
| if (value >= min && value <= max) { |
| mParameters.setExposureCompensation(value); |
| } else { |
| Log.w(TAG, "invalid exposure range: " + value); |
| } |
| |
| if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { |
| // Set flash mode. |
| String flashMode = mPreferences.getString( |
| CameraSettings.KEY_FLASH_MODE, |
| getString(R.string.pref_camera_flashmode_default)); |
| List<String> supportedFlash = mParameters.getSupportedFlashModes(); |
| if (isSupported(flashMode, supportedFlash)) { |
| mParameters.setFlashMode(flashMode); |
| } else { |
| flashMode = mParameters.getFlashMode(); |
| if (flashMode == null) { |
| flashMode = getString( |
| R.string.pref_camera_flashmode_no_flash); |
| } |
| } |
| |
| // Set white balance parameter. |
| String whiteBalance = mPreferences.getString( |
| CameraSettings.KEY_WHITE_BALANCE, |
| getString(R.string.pref_camera_whitebalance_default)); |
| if (isSupported(whiteBalance, |
| mParameters.getSupportedWhiteBalance())) { |
| mParameters.setWhiteBalance(whiteBalance); |
| } else { |
| whiteBalance = mParameters.getWhiteBalance(); |
| if (whiteBalance == null) { |
| whiteBalance = Parameters.WHITE_BALANCE_AUTO; |
| } |
| } |
| |
| // Set focus mode. |
| mFocusManager.overrideFocusMode(null); |
| mParameters.setFocusMode(mFocusManager.getFocusMode()); |
| } else { |
| mFocusManager.overrideFocusMode(mParameters.getFocusMode()); |
| } |
| } |
| |
| // We separate the parameters into several subsets, so we can update only |
| // the subsets actually need updating. The PREFERENCE set needs extra |
| // locking because the preference can be changed from GLThread as well. |
| private void setCameraParameters(int updateSet) { |
| mParameters = mCameraDevice.getParameters(); |
| |
| if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { |
| updateCameraParametersInitialize(); |
| } |
| |
| if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { |
| updateCameraParametersZoom(); |
| } |
| |
| if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { |
| updateCameraParametersPreference(); |
| } |
| |
| mCameraDevice.setParameters(mParameters); |
| } |
| |
| // If the Camera is idle, update the parameters immediately, otherwise |
| // accumulate them in mUpdateSet and update later. |
| private void setCameraParametersWhenIdle(int additionalUpdateSet) { |
| mUpdateSet |= additionalUpdateSet; |
| if (mCameraDevice == null) { |
| // We will update all the parameters when we open the device, so |
| // we don't need to do anything now. |
| mUpdateSet = 0; |
| return; |
| } else if (isCameraIdle()) { |
| setCameraParameters(mUpdateSet); |
| updateSceneModeUI(); |
| mUpdateSet = 0; |
| } else { |
| if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { |
| mHandler.sendEmptyMessageDelayed( |
| SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); |
| } |
| } |
| } |
| |
| private void gotoGallery() { |
| MenuHelper.gotoCameraImageGallery(this); |
| } |
| |
| private boolean isCameraIdle() { |
| return (mCameraState == IDLE) || (mFocusManager.isFocusCompleted()); |
| } |
| |
| private boolean isImageCaptureIntent() { |
| String action = getIntent().getAction(); |
| return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); |
| } |
| |
| private void setupCaptureParams() { |
| Bundle myExtras = getIntent().getExtras(); |
| if (myExtras != null) { |
| mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); |
| mCropValue = myExtras.getString("crop"); |
| } |
| } |
| |
| private void showPostCaptureAlert() { |
| if (mIsImageCaptureIntent) { |
| Util.fadeOut(mIndicatorControlContainer); |
| Util.fadeOut(mShutterButton); |
| |
| int[] pickIds = {R.id.btn_retake, R.id.btn_done}; |
| for (int id : pickIds) { |
| Util.fadeIn(findViewById(id)); |
| } |
| } |
| } |
| |
| private void hidePostCaptureAlert() { |
| if (mIsImageCaptureIntent) { |
| enableCameraControls(true); |
| |
| int[] pickIds = {R.id.btn_retake, R.id.btn_done}; |
| for (int id : pickIds) { |
| Util.fadeOut(findViewById(id)); |
| } |
| |
| Util.fadeIn(mShutterButton); |
| Util.fadeIn(mIndicatorControlContainer); |
| } |
| } |
| |
| @Override |
| public boolean onPrepareOptionsMenu(Menu menu) { |
| super.onPrepareOptionsMenu(menu); |
| // Only show the menu when camera is idle. |
| for (int i = 0; i < menu.size(); i++) { |
| menu.getItem(i).setVisible(isCameraIdle()); |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public boolean onCreateOptionsMenu(Menu menu) { |
| super.onCreateOptionsMenu(menu); |
| |
| if (mIsImageCaptureIntent) { |
| // No options menu for attach mode. |
| return false; |
| } else { |
| addBaseMenuItems(menu); |
| } |
| return true; |
| } |
| |
| private void addBaseMenuItems(Menu menu) { |
| MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_VIDEO, new Runnable() { |
| public void run() { |
| switchToOtherMode(ModePicker.MODE_VIDEO); |
| } |
| }); |
| MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_PANORAMA, new Runnable() { |
| public void run() { |
| switchToOtherMode(ModePicker.MODE_PANORAMA); |
| } |
| }); |
| |
| if (mNumberOfCameras > 1) { |
| menu.add(R.string.switch_camera_id) |
| .setOnMenuItemClickListener(new OnMenuItemClickListener() { |
| public boolean onMenuItemClick(MenuItem item) { |
| CameraSettings.writePreferredCameraId(mPreferences, |
| ((mCameraId == mFrontCameraId) |
| ? mBackCameraId : mFrontCameraId)); |
| onSharedPreferenceChanged(); |
| return true; |
| } |
| }).setIcon(android.R.drawable.ic_menu_camera); |
| } |
| } |
| |
| private boolean switchToOtherMode(int mode) { |
| if (isFinishing()) return false; |
| MenuHelper.gotoMode(mode, Camera.this); |
| mHandler.removeMessages(FIRST_TIME_INIT); |
| finish(); |
| return true; |
| } |
| |
| public boolean onModeChanged(int mode) { |
| if (mode != ModePicker.MODE_CAMERA) { |
| return switchToOtherMode(mode); |
| } else { |
| return true; |
| } |
| } |
| |
| public void onSharedPreferenceChanged() { |
| // ignore the events after "onPause()" |
| if (mPausing) return; |
| |
| boolean recordLocation = RecordLocationPreference.get( |
| mPreferences, getContentResolver()); |
| mLocationManager.recordLocation(recordLocation); |
| |
| int cameraId = CameraSettings.readPreferredCameraId(mPreferences); |
| if (mCameraId != cameraId) { |
| // Restart the activity to have a crossfade animation. |
| // TODO: Use SurfaceTexture to implement a better and faster |
| // animation. |
| if (mIsImageCaptureIntent) { |
| // If the intent is camera capture, stay in camera capture mode. |
| MenuHelper.gotoCameraMode(this, getIntent()); |
| } else { |
| MenuHelper.gotoCameraMode(this); |
| } |
| |
| finish(); |
| } else { |
| setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); |
| } |
| |
| int exposureValue = CameraSettings.readExposure(mPreferences); |
| updateExposureOnScreenIndicator(exposureValue); |
| } |
| |
| @Override |
| public void onUserInteraction() { |
| super.onUserInteraction(); |
| keepScreenOnAwhile(); |
| } |
| |
| private void resetScreenOn() { |
| mHandler.removeMessages(CLEAR_SCREEN_DELAY); |
| getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); |
| } |
| |
| private void keepScreenOnAwhile() { |
| mHandler.removeMessages(CLEAR_SCREEN_DELAY); |
| getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); |
| mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); |
| } |
| |
| public void onRestorePreferencesClicked() { |
| if (mPausing) return; |
| Runnable runnable = new Runnable() { |
| public void run() { |
| restorePreferences(); |
| } |
| }; |
| MenuHelper.confirmAction(this, |
| getString(R.string.confirm_restore_title), |
| getString(R.string.confirm_restore_message), |
| runnable); |
| } |
| |
| private void restorePreferences() { |
| // Reset the zoom. Zoom value is not stored in preference. |
| if (mParameters.isZoomSupported()) { |
| mZoomValue = 0; |
| setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); |
| mZoomControl.setZoomIndex(0); |
| } |
| if (mIndicatorControlContainer != null) { |
| mIndicatorControlContainer.dismissSettingPopup(); |
| CameraSettings.restorePreferences(Camera.this, mPreferences, |
| mParameters); |
| mIndicatorControlContainer.reloadPreferences(); |
| onSharedPreferenceChanged(); |
| } |
| } |
| |
| public void onOverriddenPreferencesClicked() { |
| if (mPausing) return; |
| if (mNotSelectableToast == null) { |
| String str = getResources().getString(R.string.not_selectable_in_scene_mode); |
| mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); |
| } |
| mNotSelectableToast.show(); |
| } |
| |
| private void showSharePopup() { |
| Uri uri = mThumbnail.getUri(); |
| if (mSharePopup == null || !uri.equals(mSharePopup.getUri())) { |
| // SharePopup window takes the mPreviewPanel as its size reference. |
| mSharePopup = new SharePopup(this, uri, mThumbnail.getBitmap(), |
| mOrientationCompensation, mPreviewPanel); |
| } |
| mSharePopup.showAtLocation(mThumbnailView, Gravity.NO_GRAVITY, 0, 0); |
| } |
| |
| @Override |
| public void onFaceDetection(Face[] faces, android.hardware.Camera camera) { |
| mFaceView.setFaces(faces); |
| } |
| |
| private void showTapToFocusToast() { |
| // Show the toast. |
| RotateLayout v = (RotateLayout) findViewById(R.id.tap_to_focus_prompt); |
| v.setOrientation(mOrientationCompensation); |
| v.startAnimation(AnimationUtils.loadAnimation(this, R.anim.on_screen_hint_enter)); |
| v.setVisibility(View.VISIBLE); |
| mHandler.sendEmptyMessageDelayed(DISMISS_TAP_TO_FOCUS_TOAST, 5000); |
| // Clear the preference. |
| Editor editor = mPreferences.edit(); |
| editor.putBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, false); |
| editor.apply(); |
| } |
| |
| private void initializeCapabilities() { |
| mInitialParams = mCameraDevice.getParameters(); |
| mFocusManager.initializeParameters(mInitialParams); |
| mFocusAreaSupported = (mInitialParams.getMaxNumFocusAreas() > 0 |
| && isSupported(Parameters.FOCUS_MODE_AUTO, |
| mInitialParams.getSupportedFocusModes())); |
| mMeteringAreaSupported = (mInitialParams.getMaxNumMeteringAreas() > 0); |
| } |
| } |
