首先运行application的name相应的类或做activity中间name相应的类？

今天找到该程序条目中找到以下两个条件name我写了一个测试程序，一般如以下：

看mainfest.xml

<application

android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:name="com.example.test1.app"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.test1.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

</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例如以下

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相应了类是在程序安装时候就创建了

然后我第二次打开例如以下：

仅仅有一个信息

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.