Android sleep()而不阻止UI [英] Android sleep() without blocking UI

问题描述

对于我的新Android应用程序，我需要一个函数，该函数会使我的应用程序超时3秒钟.我像这样尝试了函数"sleep()":

For my new Android application I need a function, that timeout my application for 3 Seconds. I tried the function "sleep()" like this:

seekBar1.setProgress(50);                // Set something for my SeekBar

try{
   Thread.sleep(3000);                   // Wait for 3 Seconds
} catch (Exception e){
   System.out.println("Error: "+e);      // Catch the exception
}

button.setEnabled(true);                 // Enable my button

这似乎可行，但是如果我正在运行该应用程序，它会像这样:等待3秒钟，设置进度并启用按钮.我要先设置进度，然后等待3秒钟，然后再启用按钮.

It seems to work, but if I was running the application it does it like this: Wait for 3 Seconds, set progress and enable button. I want first to set the progress and then wait for 3 seconds and only then to enable the button.

"sleep()"是供我使用的权利，还是我的应用程序按正确的顺序进行操作?

Is "sleep()" for the right for my use or what can I do else that my application does it in the right order?

推荐答案

您可以使用postDelayed()这样的方法:

You can use postDelayed() method like this:

handler=new Handler();
Runnable r=new Runnable() {
    public void run() {
        //what ever you do here will be done after 3 seconds delay.              
    }
};
handler.postDelayed(r, 3000);

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