答案 0 :(得分:1)
我还没有对此进行过测试,但它应该有效。
将此依赖项添加到您的应用程序gradle文件:
compile 'com.github.ozodrukh:CircularReveal:1.1.1'
在活动开始时声明这些变量:
LinearLayout mRevealView;
boolean hidden = true;
在onCreate方法中添加:
mRevealView = (LinearLayout) findViewById(R.id.reveal_items);
mRevealView.setVisibility(View.INVISIBLE);
在您的FAB的onClick方法中,添加以下内容:
int cx = (mRevealView.getLeft() + mRevealView.getRight());
int cy = mRevealView.getTop();
int radius = Math.max(mRevealView.getWidth(), mRevealView.getHeight());
//Below Android LOLIPOP Version
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
SupportAnimator animator =
ViewAnimationUtils.createCircularReveal(mRevealView, cx, cy, 0, radius);
animator.setInterpolator(new AccelerateDecelerateInterpolator());
animator.setDuration(700);
SupportAnimator animator_reverse = animator.reverse();
if (hidden) {
mRevealView.setVisibility(View.VISIBLE);
animator.start();
hidden = false;
} else {
animator_reverse.addListener(new SupportAnimator.AnimatorListener() {
@Override
public void onAnimationStart() {
}
@Override
public void onAnimationEnd() {
mRevealView.setVisibility(View.INVISIBLE);
hidden = true;
}
@Override
public void onAnimationCancel() {
}
@Override
public void onAnimationRepeat() {
}
});
animator_reverse.start();
}
}
// Android LOLIPOP And ABOVE Version
else {
if (hidden) {
Animator anim = android.view.ViewAnimationUtils.
createCircularReveal(mRevealView, cx, cy, 0, radius);
mRevealView.setVisibility(View.VISIBLE);
anim.start();
hidden = false;
} else {
Animator anim = android.view.ViewAnimationUtils.
createCircularReveal(mRevealView, cx, cy, radius, 0);
anim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
mRevealView.setVisibility(View.INVISIBLE);
hidden = true;
}
});
anim.start();
}
}
将此方法添加到您的活动中:
private void hideRevealView() {
if (mRevealView.getVisibility() == View.VISIBLE) {
mRevealView.setVisibility(View.INVISIBLE);
hidden = true;
}
}
为显示创建一个新的xml布局,将其命名为reveal_layout.xml并添加:
<io.codetail.widget.RevealFrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="?attr/actionBarSize">
//You can include whatever layout you want here
<include layout="@layout/layout_you_want_to_show" />
</io.codetail.widget.RevealFrameLayout>
为了实现这一目标,您必须在活动结束时添加此功能。布局:
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<include layout="@layout/reveal_layout" />
</FrameLayout>
希望这有帮助。