WelcomeSnowActy.java 文件源码

private ScaleAnimation randomScale() {
    float scaleTo = (float) (0.3f + Math.random() * 0.5f);
    ScaleAnimation scale = new ScaleAnimation(1, scaleTo, 1, scaleTo, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
    scale.setRepeatCount(Animation.INFINITE);
    scale.setRepeatMode(Animation.REVERSE);
    scale.setStartOffset(1000);
    scale.setDuration((int) (Math.random() * 3000) + 1000);
    return scale;
}