android 应用架构随笔二（定义BaseApplication并配置Application）

定义BaseApplication并配置Application

import android.app.Application;
import android.os.Handler;
/**
 *
 * ============================================================
 **/
public class BaseApplication extends Application {
    //获取到主线程的上下文
    private static BaseApplication mContext;
    //获取到主线程的handler
    private static Handler mMainThreadHanler;
    //获取到主线程
    private static Thread mMainThread;
    //获取到主线程的id
    private static int mMainThreadId;

    @Override
    public void onCreate() {
        // TODO Auto-generated method stub
        super.onCreate();
        this.mContext = this;
        this.mMainThreadHanler = new Handler();
        this.mMainThread = Thread.currentThread();
        //获取到调用线程的id
        this.mMainThreadId = android.os.Process.myTid();
    }

    public static BaseApplication getApplication(){
        return mContext;
    }

    public static Handler getMainThreadHandler(){
        return mMainThreadHanler;
    }

    public static Thread getMainThread(){
        return mMainThread;
    }

    public static int getMainThreadId(){
        return mMainThreadId;
    }

}

BaseApplication

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.heima.googleplay"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="10"
        android:targetSdkVersion="17" />

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

    <application
        android:name="包名.application.BaseApplication"
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.heima.googleplay.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>

</manifest>

manifest

<application
android:name="包名.application.BaseApplication"
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.heima.googleplay.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>