我有一个活动,其中几个视图动画。单击包含少量图像的RelativeLayout时会触发动画。它在onCreate()中设置如下:
mContainer.setOnClickListener(new ContainerClicked());
而且ContainerClicked()类看起来像这样:
private class ContainerClicked implements OnClickListener {
@Override
public void onClick(View arg0) {
Log.i(TAG, "TEST!");
mSomeButton.setOnClickListener(null);
mSomeButton.setEnabled(false);
mAnotherButton.setOnClickListener(null);
mAnotherButton.setEnabled(false);
mYetAnotherButton.setOnClickListener(null);
mYetAnotherButton.setEnabled(false);
mContainer.setOnClickListener(null);
if (mLogo.getVisibility() == View.VISIBLE)
new AnimateToParty().execute();
else
new AnimateFromParty().execute();
}
}
这样可行,并根据我的需要设置动画。
AnimateToParty()如下所示:
private class AnimateToParty extends AsyncTask<Void, Integer, Void> {
@Override
protected void onProgressUpdate(final Integer... values) {
final View theView = findViewById(values[0]);
if (!(values[0] == mBackgroundImage.getId() || values[0] == mContainer
.getId())) {
final Animation animation = AnimationUtils.loadAnimation(
DashboardActivity.this, values[1]);
animation.setAnimationListener(new AnimationListener() {
@Override
public void onAnimationStart(Animation arg0) {
}
@Override
public void onAnimationRepeat(Animation arg0) {
}
@Override
public void onAnimationEnd(Animation arg0) {
theView.setVisibility(View.INVISIBLE);
}
});
theView.startAnimation(animation);
} else if (values[0] == mBackgroundImage.getId()) {
TransitionDrawable transition = (TransitionDrawable) theView
.getBackground();
transition.startTransition(getResources().getInteger(
android.R.integer.config_mediumAnimTime));
} else {
TranslateAnimation animation = new TranslateAnimation(0, 0, 0,
TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
-60, getResources().getDisplayMetrics()));
animation.setAnimationListener(new AnimationListener() {
@Override
public void onAnimationStart(Animation arg0) {
}
@Override
public void onAnimationRepeat(Animation arg0) {
}
@Override
public void onAnimationEnd(Animation arg0) {
LayoutParams lp = (LayoutParams) mContainer
.getLayoutParams();
lp.bottomMargin = 0;
RelativeLayout parent = (RelativeLayout) mContainer
.getParent();
mSomeButton.setVisibility(View.GONE);
mAnotherButton.setVisibility(View.GONE);
mYetAnotherButton.setVisibility(View.GONE);
mLogo.setVisibility(View.GONE);
// mContainer.setLayoutParams(lp);
// This caused a visible flicker, so I went with the solution below.
parent.removeView(mContainer);
parent.addView(mContainer, lp);
}
});
animation.setDuration(1000);
mContainer.startAnimation(animation);
}
}
@Override
protected Void doInBackground(Void... arg0) {
try {
publishProgress(mContainer.getId());
publishProgress(mLogo.getId(), R.anim.slide_out_up);
Thread.sleep(100);
publishProgress(mSomeButton.getId(), R.anim.slide_out_left);
Thread.sleep(110);
publishProgress(mAnotherButton.getId(), R.anim.slide_out_left);
Thread.sleep(120);
publishProgress(mYetAnotherButton.getId(), R.anim.slide_out_left);
Thread.sleep(130);
publishProgress(mBackgroundImage.getId());
Thread.sleep(550);
} catch (InterruptedException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Void result) {
mContainer.setOnClickListener(new LighterClicked());
}
}
上面的类动画了一些按钮和徽标,然后显示容器。为了保持它,我改变了它的布局框架。只是更改它们会产生一个可见的闪烁,其中容器跳跃60向上倾斜大约一帧(动画似乎没有完全完成),然后在我想要的地方定居。我读到某个地方将其从父母中移除并将其重新放入,这不会产生相同的闪烁。但是,现在重新绑定onclicklistener不起作用!
我已经尝试了所有的东西,我现在注意到,如果我按下主页按钮并再次打开应用程序,那么没有“通过”的每次点击都会触发。
有没有更好的方法来避免“闪烁”?做动画的更好方法是什么? (我对动画视图很新)为什么重新打开应用程序时点击事件会激活?
答案 0 :(得分:4)
为避免您看到的闪烁,您必须在 onAnimationEnd
的开头调用 clearAnimation()@Override
public void onAnimationEnd(Animation arg0) {
theView.clearAnimation()
...
}