package com.example.test1;
import android.os.Bundle;
import android.app.Activity;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.view.Menu;
import android.widget.Toast;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.activity_main);
ActivityInfo activityInfo;
try {
activityInfo=getPackageManager().getActivityInfo(getComponentName(), PackageManager.GET_META_DATA);
String _getMetaData =activityInfo.metaData.getString("app.activity.meteactivity");
Toast.makeText(this,_getMetaData , 3000).show();
} catch (NameNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
mainifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.test1" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="18" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" 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> <meta-data android:name="app.activity.meteactivity" android:value="Hello Good!"></meta-data> </activity> </application> </manifest>
原文：http://www.cnblogs.com/laopo/p/5821539.html