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Add gesture detector for single tap to enter/exit immersive mode in ReadingItemFragment

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This commit is contained in:
Mark Anderson 2014-03-05 21:52:42 +00:00
parent 75004c6814
commit ec2ce4abe0
1 changed files with 52 additions and 0 deletions
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52
clients/android/NewsBlur/src/com/newsblur/fragment/ReadingItemFragment.java
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@ -15,7 +15,10 @@ import android.support.v4.app.DialogFragment;
import android.support.v4.app.Fragment;
import android.text.Html;
import android.text.TextUtils;
import android.util.Log;
import android.view.GestureDetector;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
@ -202,6 +205,14 @@ public class ReadingItemFragment extends Fragment implements ClassifierDialogFra
NonfocusScrollview scrollView = (NonfocusScrollview) view.findViewById(R.id.reading_scrollview);
scrollView.registerScrollChangeListener(this.activity);
final GestureDetector gestureDetector = new GestureDetector(getActivity(), new ImmersiveViewDetector(view));
web.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
return gestureDetector.onTouchEvent(motionEvent);
}
});
return view;
}
@ -529,4 +540,45 @@ public class ReadingItemFragment extends Fragment implements ClassifierDialogFra
this.previouslySavedShareText = previouslySavedShareText;
}
private class ImmersiveViewDetector extends GestureDetector.SimpleOnGestureListener {
private View view;
// TODO detect if in immersive view - left/right swipe needs this - really whether previous view was immersive
private boolean inImmersiveView = false;
public ImmersiveViewDetector(View view) {
this.view = view;
inImmersiveView = (view.getSystemUiVisibility() & View.SYSTEM_UI_FLAG_IMMERSIVE) != 0;
Log.d("mark", ""+inImmersiveView);
Log.d("mark", ""+view.getSystemUiVisibility());
}
@Override
public boolean onSingleTapUp(MotionEvent e) {
if (inImmersiveView) {
showSystemUI();
} else {
hideSystemUI();
}
inImmersiveView = !inImmersiveView;
return super.onSingleTapUp(e);
}
private void hideSystemUI() {
view.setSystemUiVisibility(
View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN
| View.SYSTEM_UI_FLAG_IMMERSIVE);
}
private void showSystemUI() {
// Some layout/drawing artifacts as we don't use the FLAG_LAYOUT flags but otherwise the overlays wouldn't appear
// and the action bar would overlap the content
view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
}
}
}