如何实现onRetainNonConfigurationInstance

问题描述

我在做Android的媒体播放器
它的工作很好，但是当我改变屏幕的方向，该活动正在重新启动
我知道，这个问题已经问计算器上几次
但没有答案的帮助了我。
我想我应该使用：onRetainNonConfigurationInstance

i made a media player in android it's working great but when i change the screen orientation, the activity is being restartedi know that this question was already asked on stackoverflow several times but none of the answers helped me.i think i should use: onRetainNonConfigurationInstance

    @Override 
public Object onRetainNonConfigurationInstance() { ... }

但我不知道来实现它的正确方法
所以，如果有人能够给我一个教程或隐式的例子，我将不胜感激。

but i didn't know the correct way to implement it so if someone could give me a tutorial or an implicit example i would be grateful

推荐答案

没关系，它是pctated德$ P $，它工作正常。最简单的是：

Never mind that it's deprectated, it works fine. Simplest would be:

public Object onRetainNonConfigurationInstance() {
   return this;
}

然后在 YourActivity 的的onCreate（）

public void onCreate(Bundle savedState)
{
   YourActivity prevActivity = (YourActivity)getLastNonConfigurationInstance();
   if(prevActivity!= null) { 
       // So the orientation did change
       // Restore some field for example
       this.myValue = prevActivity.myValue;
   }
}

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