ex1

Miracller

于 2018-07-06 20:28:37 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/weixin_40671013/article/details/80945922

本文详细介绍了 Android 开发中 Activity 的生命周期方法，包括 onCreate, onStart, onResume 等关键方法的作用及调用时机，并通过示例代码展示了每个生命周期方法的执行过程。

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package com.example.administrator.myapplication;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;

public class MainActivity extends AppCompatActivity {

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Log.i("TAG", "(1)onCreate()");

}

public void onStart(){
super.onStart();
Log.i("TAG","(2)onStart()");
}

public void onRestoreInstanceState(Bundle savedInstanceState){
super.onRestoreInstanceState(savedInstanceState);
Log.i("TAG","(3)onRestoreInstanceState()");
}

public void onResume(){
super.onResume();
Log.i("TAG","(4)onResume()");
}

public void onSaveInstanceState(Bundle savedInstanceState){
super.onSaveInstanceState(savedInstanceState);
Log.i("TAG","(5)onSaveInstanceState()");
}

public void onRestart(){
super.onRestart();
Log.i("TAG","(6)onRestart");
}

public void onPause(){
super.onPause();
Log.i("TAG","(7)onPause");
}

public void onStop(){
super.onStop();
Log.i("TAG","(8)onStop");
}

public void onDestroy(){
super.onDestroy();
Log.i("TAG","(9)onDestroy");
}

}