活动被回收时回调onSaveInstanceState()

在可能要被回收的活动中重新

@Override

protected void onSaveInstanceState(Bundle outState){
super.onStateInstanceState(outState);

String tempData="Cope frome the first code"

outState.putString("data_key",tempData);

}

并在此活动的onCreate方法中作出相应处理

@Override

protected void onCreate (Bundle saveInstanceState){

super.onCreate(saveInstanceState);

//取出数据并放到相应的位置上，此处只做简单打印

ifsaveInstanceState!=null(){

String getData=saveInstanceState.getString("data_key");

Log.d(TAG,getData);

}

}