本文讲述了Java实现帧动画的实例代码。分享给大家供大家参考，具体如下：
1、效果图
2、帧动画的简要代码
private ImageView bgAnimView;
private AnimationDrawable mAnimationDrawable;
//初始化
mAnimationDrawable = new AnimationDrawable();
bgAnimView = new ImageView(mContext);
bgAnimView.setBackgroundDrawable(getAnimationDrawable(mAnimationDrawable));
params = new frameLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
params.topMargin = Util.Div(176 + 58);
params.gravity = Gravity.CENTER_HORIZONTAL;
addView(bgAnimView, params);
private AnimationDrawable getAnimationDrawable(AnimationDrawable mAnimationDrawable) {
int duration = 50;
mAnimationDrawable.addframe(mContext.getResources().getDrawable(R.drawable.loading1), duration);
mAnimationDrawable.addframe(mContext.getResources().getDrawable(R.drawable.loading2), duration);
mAnimationDrawable.addframe(mContext.getResources().getDrawable(R.drawable.loading3), duration);
mAnimationDrawable.setoneShot(false);
return mAnimationDrawable;
}
//动画开始
public void animLoadingStart() {
this.setVisibility(View.VISIBLE);
if (mAnimationDrawable != null) {
mAnimationDrawable.start();
}
}
//动画结束
public void animLoadingEnd() {
if (mAnimationDrawable != null) {
mAnimationDrawable.stop();
}
3、扩展：
//X轴平移
public void animY(int y, int nextY, int duration) {
LinearInterpolator ll = new LinearInterpolator(); //匀速
ObjectAnimator animator = ObjectAnimator.ofFloat(yourView, "translationY", 0, 300);//300若为负值，就是向上平移
animator.setDuration(duration);
animator.setInterpolator(ll);
animator.start();
}
//Y轴平移
public void animX(int x, int nextX, int duration) {
LinearInterpolator ll = new LinearInterpolator();
ObjectAnimator animator = ObjectAnimator.ofFloat(yourView, "translationX", x, nextX);
animator.setDuration(duration);
animator.setInterpolator(ll);
animator.start();
}
//纵向压缩0.5倍
LinearInterpolator ll = new LinearInterpolator();//匀速
ScaleAnimation scaleAnimation = new ScaleAnimation(1, 1, 1, 0.5f);//默认从（0,0）
scaleAnimation.setDuration(500);
scaleAnimation.setInterpolator(ll);
scaleAnimation.setFillAfter(true);
chartView.startAnimation(scaleAnimation);
//横向压缩0.5倍
LinearInterpolator ll = new LinearInterpolator();
ScaleAnimation scaleAnimation = new ScaleAnimation(1, 0.5f, 1, 1);//默认从（0,0）
scaleAnimation.setDuration(500);
scaleAnimation.setInterpolator(ll);
scaleAnimation.setFillAfter(true);
chartView.startAnimation(scaleAnimation);
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