onSaveInstanceState 保存 在暂停之后和保存之前调用
onRestoreInstanceState 恢复 再启动之后和显示之前调用
package com.example.chenshuai.excise; import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View; /**
* Created by chenshuai on 2016/3/20.
*/
public class excise1 extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.excise1);
Log.e("tag","创建");
} @Override
protected void onStart() {
super.onStart();
Log.e("tag","启动");
} @Override
protected void onResume() {
super.onResume();
Log.e("tag","显示");
} @Override
protected void onPause() {
super.onPause();
Log.e("tag","暂停");
} @Override
protected void onStop() {
super.onStop();
Log.e("tag","停止");
} @Override
protected void onRestart() {
super.onRestart();
Log.e("tag","重新启动");
} @Override
protected void onDestroy() {
super.onDestroy();
Log.e("tag","销毁");
} //保存和恢复用户状态
int i = 0; @Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState); i++; Log.e("tag","保存用户的状态"+i); //以put方法存储数据，存储形式为键值对
outState.putInt("key",i);
}
//恢复用户之前保存的状态
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState); int i = savedInstanceState.getInt("key");
Log.e("tag","获取用户之前保存的状态"+i);
}