am b25629b1: Merge "Close a Spinner dropdown if its anchor view goes away." into jb-mr1-dev (e2238929) · Commits · e / os / android_frameworks_base

core/java/android/widget/Spinner.java

+27 −0

Original line number	Diff line number	Diff line
		@@ -30,8 +30,11 @@ import android.util.Log;
		import android.view.Gravity;
		import android.view.View;
		import android.view.ViewGroup;
		import android.view.ViewTreeObserver;
		import android.view.ViewTreeObserver.OnGlobalLayoutListener;
		import android.view.accessibility.AccessibilityEvent;
		import android.view.accessibility.AccessibilityNodeInfo;
		import android.widget.PopupWindow.OnDismissListener;


		/**
		@@ -978,6 +981,30 @@ public class Spinner extends AbsSpinner implements OnClickListener {
		super.show();
		getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE);
		setSelection(Spinner.this.getSelectedItemPosition());

		// Make sure we hide if our anchor goes away.
		// TODO: This might be appropriate to push all the way down to PopupWindow,
		// but it may have other side effects to investigate first. (Text editing handles, etc.)
		final ViewTreeObserver vto = getViewTreeObserver();
		if (vto != null) {
		final OnGlobalLayoutListener layoutListener = new OnGlobalLayoutListener() {
		@Override
		public void onGlobalLayout() {
		if (!Spinner.this.isVisibleToUser()) {
		dismiss();
		}
		}
		};
		vto.addOnGlobalLayoutListener(layoutListener);
		setOnDismissListener(new OnDismissListener() {
		@Override public void onDismiss() {
		final ViewTreeObserver vto = getViewTreeObserver();
		if (vto != null) {
		vto.removeOnGlobalLayoutListener(layoutListener);
		}
		}
		});
		}
		}
		}
		}