我有一个按钮,当点击时,我希望该按钮似乎会通过在两个背景颜色之间来回切换而闪烁。
这个答案使用
AlphaAnimation
使按钮闪烁: final Animation animation = new AlphaAnimation(1, 0); // Change alpha from fully visible to invisible
animation.setDuration(500); // duration - half a second
animation.setInterpolator(new LinearInterpolator()); // do not alter animation rate
animation.setRepeatCount(Animation.INFINITE); // Repeat animation infinitely
animation.setRepeatMode(Animation.REVERSE); // Reverse animation at the end so the button will fade back in
final Button btn = (Button) findViewById(R.id.your_btn);
btn.startAnimation(animation);
但我无法让它在背景色下正常工作。
Android Studio将自动完成以下内容:
animation = new Animation() {
@Override
public void setBackgroundColor(int bg) {
super.setBackgroundColor(bg);
}
};
我试图将它应用于按钮(使用bg = Color.parseColor("#ffff9434")
),但不起作用。
提前谢谢。
编辑
我还尝试了以下方法,但已过时且无效(来自这里)
Button btn = (Button)this.findViewById(R.id.btn1);
//Let's change background's color from blue to red.
ColorDrawable[] color = {new ColorDrawable(Color.BLUE), new ColorDrawable(Color.RED)};
TransitionDrawable trans = new TransitionDrawable(color);
//This will work also on old devices. The latest API says you have to use setBackground instead.
btn.setBackgroundDrawable(trans);
trans.startTransition(5000);
ETID 2
已解决,见下方答案。