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Add BackgroundManager release.

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Change-Id: I5a4af31a214f2db26a399db39cf73d578dcbc71c
This commit is contained in:
Craig Stout
2015-03-19 10:22:57 -07:00
parent 818a7473fd
commit dcaafe81c8
6 changed files with 61 additions and 18 deletions
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33
samples/SupportLeanbackDemos/src/com/example/android/leanback/BackgroundHelper.java
View File

@@ -100,6 +100,7 @@ public class BackgroundHelper {
private Bitmap loadBitmap(Activity activity, Object imageToken) {
if (imageToken instanceof Integer) {
final int resourceId = (Integer) imageToken;
if (DEBUG) Log.v(TAG, "load resourceId " + resourceId);
Drawable drawable = ContextCompat.getDrawable(activity, resourceId);
if (drawable instanceof BitmapDrawable) {
return ((BitmapDrawable) drawable).getBitmap();
@@ -110,7 +111,7 @@ public class BackgroundHelper {
private void applyBackground(Activity activity, Bitmap bitmap) {
BackgroundManager backgroundManager = BackgroundManager.getInstance(activity);
if (bitmap == null || backgroundManager == null || !backgroundManager.isAttached()) {
if (backgroundManager == null || !backgroundManager.isAttached()) {
return;
}
backgroundManager.setBitmap(bitmap);
@@ -120,22 +121,34 @@ public class BackgroundHelper {
private LoadBackgroundRunnable mRunnable;
private LoadBitmapTask mTask;
public void attach(Activity activity) {
if (!ENABLED) {
return;
}
BackgroundManager.getInstance(activity).attach(activity.getWindow());
}
// Allocate a dedicated handler because there may be no view available
// when setBackground is invoked.
private Handler mHandler = new Handler();
public void setBackground(Activity activity, Object imageToken) {
if (!ENABLED) {
return;
}
Handler handler = activity.getWindow().getDecorView().getHandler();
if (mRunnable != null) {
handler.removeCallbacks(mRunnable);
mHandler.removeCallbacks(mRunnable);
}
mRunnable = new LoadBackgroundRunnable(activity, imageToken);
handler.postDelayed(mRunnable, SET_BACKGROUND_DELAY_MS);
mHandler.postDelayed(mRunnable, SET_BACKGROUND_DELAY_MS);
}
static public void attach(Activity activity) {
if (!ENABLED) {
return;
}
if (DEBUG) Log.v(TAG, "attach to activity " + activity);
BackgroundManager.getInstance(activity).attach(activity.getWindow());
}
static public void release(Activity activity) {
if (!ENABLED) {
return;
}
if (DEBUG) Log.v(TAG, "release from activity " + activity);
BackgroundManager.getInstance(activity).release();
}
}

12
samples/SupportLeanbackDemos/src/com/example/android/leanback/BrowseActivity.java
View File

@@ -23,4 +23,16 @@ public class BrowseActivity extends Activity {
super.onCreate(savedInstanceState);
setContentView(R.layout.browse);
}
@Override
public void onAttachedToWindow() {
super.onAttachedToWindow();
BackgroundHelper.attach(this);
}
@Override
public void onStop() {
BackgroundHelper.release(this);
super.onStop();
}
}

11
samples/SupportLeanbackDemos/src/com/example/android/leanback/BrowseFragment.java
View File

@@ -67,7 +67,10 @@ public class BrowseFragment extends android.support.v17.leanback.app.BrowseFragm
RowPresenter.ViewHolder rowViewHolder, Row row) {
Log.i(TAG, "onItemSelected: " + item + " row " + row);
if (item instanceof PhotoItem) {
if (isShowingHeaders()) {
mBackgroundHelper.setBackground(getActivity(), null);
}
else if (item instanceof PhotoItem) {
mBackgroundHelper.setBackground(
getActivity(), ((PhotoItem) item).getImageResourceId());
}
@@ -85,8 +88,6 @@ public class BrowseFragment extends android.support.v17.leanback.app.BrowseFragm
}
}, 2000);
}
mBackgroundHelper.attach(getActivity());
}
private void setupRows() {
@@ -112,7 +113,7 @@ public class BrowseFragment extends android.support.v17.leanback.app.BrowseFragm
listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_5));
listRowAdapter.add(new PhotoItem("This is a test", "Only a test", R.drawable.gallery_photo_6));
listRowAdapter.add(new PhotoItem("Android TV", "open RowsActivity", R.drawable.gallery_photo_7));
listRowAdapter.add(new PhotoItem("Leanback", "open MainActivity", R.drawable.gallery_photo_8));
listRowAdapter.add(new PhotoItem("Leanback", "open BrowseActivity", R.drawable.gallery_photo_8));
HeaderItem header = new HeaderItem(i, "Row " + i);
mRowsAdapter.add(new ListRow(header, listRowAdapter));
}
@@ -128,7 +129,7 @@ public class BrowseFragment extends android.support.v17.leanback.app.BrowseFragm
Intent intent;
Bundle bundle;
if ( ((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_8) {
intent = new Intent(getActivity(), MainActivity.class);
intent = new Intent(getActivity(), BrowseActivity.class);
bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity())
.toBundle();
} else if ( ((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_7) {

11
samples/SupportLeanbackDemos/src/com/example/android/leanback/DetailsActivity.java
View File

@@ -35,4 +35,15 @@ public class DetailsActivity extends Activity
}
}
@Override
public void onAttachedToWindow() {
super.onAttachedToWindow();
BackgroundHelper.attach(this);
}
@Override
public void onStop() {
BackgroundHelper.release(this);
super.onStop();
}
}

11
samples/SupportLeanbackDemos/src/com/example/android/leanback/DetailsFragment.java
View File

@@ -159,8 +159,6 @@ public class DetailsFragment extends android.support.v17.leanback.app.DetailsFra
prepareEntranceTransition();
}
}
mBackgroundHelper.attach(getActivity());
}
@Override
@@ -206,4 +204,13 @@ public class DetailsFragment extends android.support.v17.leanback.app.DetailsFra
setAdapter(mRowsAdapter);
}
@Override
public void onStart() {
super.onStart();
if (mPhotoItem != null) {
mBackgroundHelper.setBackground(
getActivity(), mPhotoItem.getImageResourceId());
}
}
}

1
samples/SupportLeanbackDemos/src/com/example/android/leanback/MainActivity.java
View File

@@ -88,5 +88,4 @@ public class MainActivity extends Activity {
}
}
}