Android的：做一个进度条更新顺利 [英] Android: make a progress bar update smoothly

问题描述

我用一个进度条（巴形式）。我希望做酒吧的增加和使用插平稳下降，但它不工作。这是我目前所面对的：

I'm using a progress bar (in bar form). I wish to make the bar increase and decrease smoothly using an interpolator, but It's not working. This is what I have at the moment:

pb.setInterpolator(main.this, android.R.anim.bounce_interpolator);

pb.setProgress(pb.getProgress()+10);

我做得真的错了？

Am I doing something really wrong?

推荐答案

插补器已经被连接到了动画，这将工作仅在蜂窝或更高：

The Interpolator have to be attached to an animation and this will work only on Honeycomb or higher :

if(android.os.Build.VERSION.SDK_INT >= 11){
    // will update the "progress" propriety of seekbar until it reaches progress
    ObjectAnimator animation = ObjectAnimator.ofInt(seekbar, "progress", progress); 
    animation.setDuration(500); // 0.5 second
    animation.setInterpolator(new DecelerateInterpolator());
    animation.start();
}
else 
    seekbar.setProgress(progress); // no animation on Gingerbread or lower

如果您的最低SDK是姜饼或更低时，添加

If your minimum SDK is Gingerbread or lower, add

@TargetApi(Build.VERSION_CODES.HONEYCOMB) 
// or 
@SuppressLint("NewApi") 

你的函数/类。

to your function/class.

我用了DecelerateInterpolator，但这是可选的，还有其他的可能性。

I used a DecelerateInterpolator, but this is optional and there are others possibilities.

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