先执行application的name对应的类呢还是activity中的name对应的类？

标签：application

今天找程序入口发现了下面的情况有两个name我就写了个测试程序大致如下：

先看mainfest.xml

<application

    </application>

k看app

package com.example.test1;


import android.app.Application;
import android.os.Bundle;
import android.util.Log;


public class app extends Application{
public void onCreate(){

super.onCreate();
Log.d("tt","application");
}


}

看activity如下

public class MainActivity extends Activity {


@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
          Log.d("tt","activity");
          new app();

}

｝

最后我们来看日志文件就清楚了：

10-28 15:40:54.915: D/tt(4116): application

10-28 15:40:55.525: D/tt(4116): activity

这里就是说application 的name对应了类是在程序安装时候就创建了

然后我第二次打开如下：

只有一个信息

android.app.Application
Base class for those who need to maintain global application state. You can provide your own implementation by specifying its name in your AndroidManifest.xml‘s <application> tag, which will cause that class to be instantiated for you when the process for your application/package is created.
Base class for those who need to maintain global application state. You can provide your own implementation by specifying its name in your AndroidManifest.xml‘s <application> tag, which will cause that class to be instantiated for you when the process for your application/package is created.

先执行application的name对应的类呢还是activity中的name对应的类？

标签：application

原文地址：http://blog.csdn.net/songjunyan/article/details/40541061