标签:动画 mValueAnimator int float private 摇晃 animation1 三种 mImageView
是对图标形态的动画,不用实际改变图标的位置。
方式一:ObjectAnimator类
ObjectAnimator animation2 = ObjectAnimator.ofFloat(mImageView,"rotation",0,-24,0,20,-12,0,10,0,-7,0,5,0);
animation2.setInterpolator(new DecelerateInterpolator());
animation2.setDuration(1000);
animation2.setRepeatMode(ValueAnimator.REVERSE);
animation2.start();
mImageView.setPivotX(mImageView.getMeasuredWidth() / 2);
mImageView.setPivotY(mImageView.getMeasuredHeight());
方式二:RotateAnimation类
RotateAnimation animation1 = new RotateAnimation(-20,20,Animation.RELATIVE_TO_SELF,0.5f,Animation.RELATIVE_TO_SELF,1f);
CycleInterpolator cycleInterpolator = new CycleInterpolator(5);
animation1.setInterpolator(new CycleInterpolator(5));
// animation1.setRepeatCount(1);
// animation1.setRepeatMode(Animation.REVERSE);
animation1.setDuration(1000);
mImageView.startAnimation(animation1);
方式三:自定义动画 ShakeAnimation 继承Animaiton 覆写
applyTransformation方法
```java
public class WaveAnimation extends Animation {
private final int mWaveTimes;//摇摆次数
private float mWaveRange;//摇摆幅度
/**
* 根据view的宽高确定旋转中心
*/
private final int mWidth;
private final int mHeight;
/**
* 动态改变摇摆的幅度
*/
private final ValueAnimator mValueAnimator;
private static final float SHAKERANGE_MIN = 0;
public WaveAnimation(int width, int height, int waveTimes, float waveRange) {
this.mWidth = width;
this.mHeight = height;
this.mWaveTimes = waveTimes;
this.mWaveRange = waveRange;
this.mValueAnimator = ValueAnimator.ofFloat(mWaveRange, SHAKERANGE_MIN);
}
public void setShakeRange(float shakeRange) {
this.mWaveRange = shakeRange;
}
@Override
protected void applyTransformation(float interpolatedTime,
Transformation t) {
t.getMatrix().setRotate((float) (Math.sin(interpolatedTime * Math.PI * mWaveTimes) * mWaveRange), mWidth, mHeight);
super.applyTransformation(interpolatedTime, t);
if (mValueAnimator != null && !mValueAnimator.isRunning()) {
changeWaveRange();
}
}
public void changeWaveRange() {
mValueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
float value = (float) animation.getAnimatedValue();
setShakeRange(value);
}
});
mValueAnimator.setDuration(1000);
mValueAnimator.start();
}
}
标签:动画,mValueAnimator,int,float,private,摇晃,animation1,三种,mImageView 来源: https://blog.csdn.net/qq_30719525/article/details/123227073
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