Android——onSaveInstanceState()

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覆盖onSaveInstanceState方法，并在onCreate中检测savedInstanceState和获取保存的值

@Override  
protected void onSaveInstanceState(Bundle outState) {   
    outState.putInt("currentposition", videoView.getCurrentPosition());  
    super.onSaveInstanceState(outState);  
}  

public void onCreate(Bundle savedInstanceState) {  
    super.onCreate(savedInstanceState);  
    setContentView(R.layout.main);   

    initView();  

    if (savedInstanceState != null  
            && savedInstanceState.getInt("currentposition") != 0) {  

        videoView.seekTo(savedInstanceState.getInt("currentposition"));  
    }  
}