android之activities的生命周期

生命周期图片：

测试主页面布局:

：layout/activity_main.xml

测试主页面java代码：

package com.sxt.day04_03;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Log.i("main","onCreate()");
setListener();
}

private void setListener() {
findViewById(R.id.button).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent=new Intent(MainActivity.this, SecondActivity.class);
startActivity(intent);
}
});
}

@Override
protected void onStart() {
super.onStart();
Log.i("main","onStart()");
}

@Override
protected void onResume() {
super.onResume();
Log.i("main","onResume()");
}

@Override
protected void onPause() {
super.onPause();
Log.i("main", "onPause()");
}

@Override
protected void onStop() {
super.onStop();
Log.i("main","onStop()");
}

@Override
protected void onDestroy() {
super.onDestroy();
Log.i("main","onDestroy()");
}

@Override
protected void onRestart() {
super.onRestart();
Log.i("main","onRestatr()");
}
}

第二个次页面布局：

：layout/activity_second.xml

第二个次页面java代码：

package com.sxt.day04_03;

import android.app.Activity;
import android.os.Bundle;

public class SecondActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
}

}

效果：

本文出自 “追随心的彼岸” 博客，谢绝转载！

更多相关文章

随机推荐