本文講述了Java實現幀動畫的實例代碼。分享給大家供大家參考，具體如下：

1、效果圖

2、幀動畫的簡要代碼

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;

}

//動畫開始

public void animLoadingStart() {

this.setVisibility(View.VISIBLE);

if (mAnimationDrawable != null) {

mAnimationDrawable.start();

}

}

//動畫結束

public void animLoadingEnd() {

if (mAnimationDrawable != null) {

mAnimationDrawable.stop();

}

3、擴展：

//X軸平移

public void animY(int y, int nextY, int duration) {

LinearInterpolator ll = new LinearInterpolator(); //勻速

ObjectAnimator animator = ObjectAnimator.ofFloat(yourView, "translationY", 0, 300);//300若為負值，就是向上平移

animator.setDuration(duration);

animator.setInterpolator(ll);

animator.start();

}

//Y軸平移

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();

}

//縱向壓縮0.5倍

LinearInterpolator ll = new LinearInterpolator();//勻速

ScaleAnimation scaleAnimation = new ScaleAnimation(1, 1, 1, 0.5f);//默認從(0,0)

scaleAnimation.setDuration(500);

scaleAnimation.setInterpolator(ll);

scaleAnimation.setFillAfter(true);

chartView.startAnimation(scaleAnimation);

//橫向壓縮0.5倍

LinearInterpolator ll = new LinearInterpolator();

ScaleAnimation scaleAnimation = new ScaleAnimation(1, 0.5f, 1, 1);//默認從(0,0)

scaleAnimation.setDuration(500);

scaleAnimation.setInterpolator(ll);

scaleAnimation.setFillAfter(true);

chartView.startAnimation(scaleAnimation);

總結

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