我正在发布Google Cloud
Messaging的演示应用程序。
确保您创建的演示应用程序的API级别等于或高于 具有Google API的Android OS 2.2
用户必须至少登录一个Google帐户才能使用此服务。
首先，您必须添加GCM库。
比在我命名的类上创建
GCMIntentService扩展了GCMbaseIntentService的类如下：
package com.example.gcmdemo;import android.content.Context;import android.content.Intent;import android.util.Log;import com.google.android.gcm.GCMbaseIntentService;import com.google.android.gcm.GCMConstants;public class GCMIntentService extends GCMbaseIntentService { private static final String TAG = "Push Notification Demo GCMIntentService"; @Override protected void onError(Context context, String errorId) { if(GCMConstants.ERROR_ACCOUNT_MISSING.equalsIgnoreCase(errorId)) { Log.v(TAG, "Error Account Missing"); } else if(GCMConstants.ERROR_AUTHENTICATION_FAILED.equalsIgnoreCase(errorId)) { Log.v(TAG, "Error Authentication Failed"); } else if(GCMConstants.ERROR_INVALID_PARAMETERS.equalsIgnoreCase(errorId)) { Log.v(TAG, "Error Invalid Parameters"); } else if(GCMConstants.ERROR_INVALID_SENDER.equalsIgnoreCase(errorId)) { Log.v(TAG, "Error Invalid Sender"); } else if(GCMConstants.ERROR_PHONE_REGISTRATION_ERROR.equalsIgnoreCase(errorId)) { Log.v(TAG, "Error Phone Registration Error"); } else if(GCMConstants.ERROR_SERVICE_NOT_AVAILABLE.equalsIgnoreCase(errorId)) { Log.v(TAG, "Error Service Not Available"); } } @Override protected void onMessage(Context context, Intent intent) { // App Server Sends message as key value pairs String value1 = intent.getStringExtra("key1"); String value2 = intent.getStringExtra("key2"); Log.v(TAG, "key1: "+value1 ); Log.v(TAG, "key2: "+value2 ); } @Override protected void onRegistered(Context context, String regId) { Log.v(TAG, "Successfull Registration : "+regId); } @Override protected void onUnregistered(Context context, String regId) { Log.v(TAG, "Successfully Unregistred : "+regId); } @Override protected String[] getSenderIds(Context context) { return super.getSenderIds(context); } @Override protected void onDeletedMessages(Context context, int total) { super.onDeletedMessages(context, total); } @Override protected boolean onRecoverableError(Context context, String errorId) { return super.onRecoverableError(context, errorId); }}这是在以下演示活动中应如何检查注册的方法：
package com.example.gcmdemo;import android.app.Activity;import android.os.Bundle;import android.util.Log;import android.view.Menu;import com.google.android.gcm.GCMRegistrar;public class MainActivity extends Activity { private static final String TAG = "Push Notification Demo Activity"; private static final String SENDER_ID = "1069713227710"; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); GCMRegistrar.checkDevice(this); GCMRegistrar.checkManifest(this); final String regId = GCMRegistrar.getRegistrationId(this); if (regId.equals("")) { GCMRegistrar.register(this, SENDER_ID); } else { Log.v(TAG, "Already registered : "+regId); } } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; }}最后是演示清单：
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.gcmdemo" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="8" /> <permission android:name="com.example.gcmdemo.permission.C2D_MESSAGE" android:protectionLevel="signature" /> <uses-permission android:name="com.example.gcmdemo.permission.C2D_MESSAGE" /> <!-- App receives GCM messages. --> <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" /> <!-- GCM connects to Google Services. --> <uses-permission android:name="android.permission.INTERNET" /> <!-- GCM requires a Google account. --> <uses-permission android:name="android.permission.GET_ACCOUNTS" /> <!-- Keeps the processor from sleeping when a message is received. --> <uses-permission android:name="android.permission.WAKE_LOCK" /> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".MainActivity" android:label="@string/title_activity_main" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <receiver android:name="com.google.android.gcm.GCMBroadcastReceiver" android:permission="com.google.android.c2dm.permission.SEND" > <intent-filter> <action android:name="com.google.android.c2dm.intent.RECEIVE" /> <action android:name="com.google.android.c2dm.intent.REGISTRATION" /> <category android:name="com.example.gcmdemo" /> </intent-filter> </receiver> <service android:name=".GCMIntentService" /> </application></manifest>
另外，您将需要此处指定的第三方服务器端脚本。
