Merge "Use ConnectionManager to restart loaders" into ur9
Change-Id: I5a63f77f348c735d1617e44e5e17386e2965ac56
diff --git a/src/com/android/ex/photo/fragments/PhotoViewFragment.java b/src/com/android/ex/photo/fragments/PhotoViewFragment.java
index 6702bd8..ef1ef0d 100644
--- a/src/com/android/ex/photo/fragments/PhotoViewFragment.java
+++ b/src/com/android/ex/photo/fragments/PhotoViewFragment.java
@@ -17,10 +17,15 @@
package com.android.ex.photo.fragments;
+import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.pm.PackageManager;
import android.database.Cursor;
import android.graphics.Bitmap;
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.LoaderManager;
@@ -121,6 +126,9 @@
protected View mPhotoPreviewAndProgress;
protected boolean mThumbnailShown;
+ /** Whether or not there is currently a connection to the internet */
+ protected boolean mConnected;
+
/** Public no-arg constructor for allowing the framework to handle orientation changes */
public PhotoViewFragment() {
// Do nothing.
@@ -132,7 +140,7 @@
* @param position
* @param onlyShowSpinner
*/
- public static final PhotoViewFragment newInstance(
+ public static PhotoViewFragment newInstance(
Intent intent, int position, boolean onlyShowSpinner) {
final Bundle b = new Bundle();
b.putParcelable(ARG_INTENT, intent);
@@ -155,6 +163,11 @@
if (mAdapter == null) {
throw new IllegalStateException("Callback reported null adapter");
}
+
+ if (hasNetworkStatePermission()) {
+ getActivity().registerReceiver(new InternetStateBroadcastReceiver(),
+ new IntentFilter("android.net.conn.CONNECTIVITY_CHANGE"));
+ }
// Don't call until we've setup the entire view
setViewVisibility();
}
@@ -244,6 +257,19 @@
mCallback.addScreenListener(mPosition, this);
mCallback.addCursorListener(this);
+ if (hasNetworkStatePermission()) {
+ ConnectivityManager connectivityManager = (ConnectivityManager)
+ getActivity().getSystemService(Context.CONNECTIVITY_SERVICE);
+ NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();
+ if (activeNetInfo != null) {
+ mConnected = activeNetInfo.isConnected();
+ } else {
+ // Best to set this to false, since it won't stop us from trying to download,
+ // only allow us to try re-download if we get notified that we do have a connection.
+ mConnected = false;
+ }
+ }
+
if (!isPhotoBound()) {
mProgressBarNeeded = true;
mPhotoPreviewAndProgress.setVisibility(View.VISIBLE);
@@ -367,6 +393,12 @@
}
}
+ private boolean hasNetworkStatePermission() {
+ final String networkStatePermission = "android.permission.ACCESS_NETWORK_STATE";
+ int result = getActivity().checkCallingOrSelfPermission(networkStatePermission);
+ return result == PackageManager.PERMISSION_GRANTED;
+ }
+
/**
* Enable or disable image transformations. When transformations are enabled, this view
* consumes all touch events.
@@ -512,4 +544,28 @@
public boolean isProgressBarNeeded() {
return mProgressBarNeeded;
}
+
+ private class InternetStateBroadcastReceiver extends BroadcastReceiver {
+
+ @Override
+ public void onReceive(Context context, Intent intent) {
+ // This is only created if we have the correct permissions, so
+ ConnectivityManager connectivityManager = (ConnectivityManager)
+ context.getSystemService(Context.CONNECTIVITY_SERVICE);
+ NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();
+ if (activeNetInfo == null) {
+ mConnected = false;
+ return;
+ }
+ if (mConnected == false && activeNetInfo.isConnected() && !isPhotoBound()) {
+ if (mThumbnailShown == false) {
+ getLoaderManager().restartLoader(LOADER_ID_THUMBNAIL, null,
+ PhotoViewFragment.this);
+ }
+ getLoaderManager().restartLoader(LOADER_ID_PHOTO, null, PhotoViewFragment.this);
+ mConnected = true;
+ mPhotoProgressBar.setVisibility(View.VISIBLE);
+ }
+ }
+ }
}
