本文介绍了自ScaleAnimation / applytransformation不叫的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
这是我的自定义ScaleAnimation:
This is my custom ScaleAnimation:
public class MyScaler extends ScaleAnimation {
private static final String TAG = "myScaler";
private View mView;
private LayoutParams mLayoutParams;
private int oldMargin, newMargin;
private boolean mVanishAfter = false;
public MyScaler(float fromX, float toX, float fromY, float toY, int duration, View view,
boolean vanishAfter) {
super(fromX, toX, fromY, toY);
setDuration(duration);
setFillAfter(true);
setFillBefore(true);
setFillEnabled(true);
mView=view;
int height = 200; // fiktive hoehe
mLayoutParams = (LayoutParams) view.getLayoutParams();
oldMargin = toY<fromY ? mLayoutParams.bottomMargin : -214;
Log.d(TAG, "old Margin "+oldMargin);
newMargin = toY<fromY ? oldMargin-height : height;
Log.d(TAG, "new Margin "+newMargin);
}
@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
super.applyTransformation(interpolatedTime, t);
Log.d(TAG, "apply transofrmation");
if (interpolatedTime < 1.0f) {
int newBottomMargin=(int)(newMargin*interpolatedTime) + oldMargin;
mLayoutParams.setMargins(mLayoutParams.leftMargin, mLayoutParams.topMargin,
mLayoutParams.rightMargin, newBottomMargin);
Log.d(TAG,"margin change "+newBottomMargin);
mView.getParent().requestLayout();
} else if (mVanishAfter) {
mView.setVisibility(View.GONE);
}
}
@Override
public boolean willChangeBounds() {
return true;
}
}
我打电话是这样的,得到扩大,并通过切换按钮隐藏:
I am calling it like this, to get a expand and hide it via a toggle button:
toggle.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
Log.d(TAG, "onClick first "+first);
if(first){
myScale = new MyScaler(1.0f, 1.0f, 0.0f, 1.0f, 500, dp, false);
((TextView) v).setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.expander_ic_minimized, 0);
}
else{
myScale = new MyScaler(1.0f, 1.0f, 1.0f, 0.0f, 500, dp, false);
((TextView) v).setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.expander_ic_maximized, 0);
}
first=!first;
myScale.setAnimationListener(new AnimationListener(){
@Override
public void onAnimationEnd(Animation animation) {
first= !first;
Log.d(TAG, "change First"+first);
}
@Override
public void onAnimationRepeat(Animation animation) {
}
@Override
public void onAnimationStart(Animation animation) {
Log.d(TAG, "started ani");
}
});
dp.startAnimation(myScale);
View parent = (View)dp.getParent();
parent.invalidate();
}
});
它隐藏在第一次尝试以正确的方式查看。但每次我想通过按钮来展开它,它不会发生。如果触摸过意见,动画开始。我有什么改变?先谢谢了。
It hides the View at the first attempt the right way. But everytime I want to expand it via the Button, it does not happen. If touch the over views, the animation starts. What do I have to change? Thanks in advance.
推荐答案
我有同样的问题,但无效并没有我的情况下工作。这解决了我的问题:
I had the same issue but invalidate didn't work in my case. This solved my issue:
dp.requestLayout();
这篇关于自ScaleAnimation / applytransformation不叫的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!