根据浮动操作按钮的新Android Design Guidelines,transform the Floating Action Button into a Toolbar应该合理。
是否有任何样本/示例可以执行此类转换?
答案 0 :(得分:13)
要使用揭示动画,您需要在onCreateView回调中向视图添加onLayoutChange侦听器,如下所示:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
// Inflate the layout for this fragment
final View view = inflater.inflate(R.layout.fragment_map_list, container, false);
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
view.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
@Override
public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
v.removeOnLayoutChangeListener(this);
revealView(view);
}
});
}
return view;
}
其中revealView()方法将是:
private void revealView(View view) {
toolbar = view.findViewById(R.id.mytoolbar);
int cx = (view.getLeft() + view.getRight()) / 2;
int cy = (view.getTop() + view.getBottom()) / 2;
float radius = Math.max(infoContainer.getWidth(), infoContainer.getHeight()) * 2.0f;
if (infoContainer.getVisibility() == View.INVISIBLE) {
infoContainer.setVisibility(View.VISIBLE);
ViewAnimationUtils.createCircularReveal(infoContainer, cx, cy, 0, radius).start();
} else {
Animator reveal = ViewAnimationUtils.createCircularReveal(
infoContainer, cx, cy, radius, 0);
reveal.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
toolbar.setVisibility(View.INVISIBLE);
}
});
reveal.start();
}
}
通过这种方式,您应该能够创建动画。这是使用它的方法。只需在您的fab onClick()方法中应用它
答案 1 :(得分:4)
在我看来就像Circular Reveal Animation一样,它揭开了自定义工具栏。