本文整理汇总了Java中android.view.ViewTreeObserver.OnGlobalFocusChangeListener类的典型用法代码示例。如果您正苦于以下问题：Java OnGlobalFocusChangeListener类的具体用法？Java OnGlobalFocusChangeListener怎么用？Java OnGlobalFocusChangeListener使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
OnGlobalFocusChangeListener类属于android.view.ViewTreeObserver包，在下文中一共展示了OnGlobalFocusChangeListener类的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: MenuView
import android.view.ViewTreeObserver.OnGlobalFocusChangeListener; //导入依赖的package包/类
public MenuView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
mLayoutInflater = LayoutInflater.from(context);
// Set hardware layer type for smooth animation of lots of views.
setLayerType(LAYER_TYPE_HARDWARE, null);
getViewTreeObserver().addOnGlobalFocusChangeListener(new OnGlobalFocusChangeListener() {
@Override
public void onGlobalFocusChanged(View oldFocus, View newFocus) {
MenuRowView newParent = getParentMenuRowView(newFocus);
if (newParent != null) {
if (DEBUG) Log.d(TAG, "Focus changed to " + newParent);
// When the row is selected, the row view itself has the focus because the row
// is collapsed. To make the child of the row have the focus, requestFocus()
// should be called again after the row is expanded. It's done in
// setSelectedPosition().
setSelectedPositionSmooth(mMenuRowViews.indexOf(newParent));
}
}
});
mLayoutManager = new MenuLayoutManager(context, this);
}