I have a few questions about GCM (Google Cloud Messaging).
The first question is that: I am unable to start up the program. It seems to be always crashing:
The manifest:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.gcmtutorial"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<permission android:name="com.example.gcmtutorial.permission.C2D_MESSAGE" android:protectionLevel="signature" />
<uses-permission android:name="com.example.gcmtutorial.permission.C2D_MESSAGE" />
<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" >
<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.gcmtutorial" />
</intent-filter>
</receiver>
<service android:name=".GCMIntentService" />
<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>
</application>
</manifest>
The code is:
package com.example.gcmtutorial;
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import com.google.android.gcm.GCMRegistrar;
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
GCMRegistrar.checkDevice(this);
GCMRegistrar.checkManifest(this);
final String regId = GCMRegistrar.getRegistrationId(this);
if (regId.equals("")) {
GCMRegistrar.register(this, "714669202278");
} else {
Log.v("Registered", "Already registered");
}
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
The error that I receive is that
07-27 18:11:23.504: E/AndroidRuntime(11390): FATAL EXCEPTION: main
07-27 18:11:23.504: E/AndroidRuntime(11390): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.gcmtutorial/com.example.gcmtutorial.MainActivity}: java.lang.SecurityException: Not allowed to start service Intent { act=com.google.android.c2dm.intent.REGISTER pkg=com.google.android.gsf (has extras) } without permission com.google.android.c2dm.permission.RECEIVE
07-27 18:11:23.504: E/AndroidRuntime(11390): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2205)
07-27 18:11:23.504: E/AndroidRuntime(11390): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2240)
07-27 18:11:23.504: E/AndroidRuntime(11390): at android.app.ActivityThread.access$600(ActivityThread.java:139)
07-27 18:11:23.504: E/AndroidRuntime(11390): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1262)
07-27 18:11:23.504: E/AndroidRuntime(11390): at android.os.Handler.dispatchMessage(Handler.java:99)
07-27 18:11:23.504: E/AndroidRuntime(11390): at android.os.Looper.loop(Looper.java:156)
07-27 18:11:23.504: E/AndroidRuntime(11390): at android.app.ActivityThread.main(ActivityThread.java:4987)
07-27 18:11:23.504: E/AndroidRuntime(11390): at java.lang.reflect.Method.invokeNative(Native Method)
07-27 18:11:23.504: E/AndroidRuntime(11390): at java.lang.reflect.Method.invoke(Method.java:511)
07-27 18:11:23.504: E/AndroidRuntime(11390): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
07-27 18:11:23.504: E/AndroidRuntime(11390): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
07-27 18:11:23.504: E/AndroidRuntime(11390): at dalvik.system.NativeStart.main(Native Method)
07-27 18:11:23.504: E/AndroidRuntime(11390): Caused by: java.lang.SecurityException: Not allowed to start service Intent { act=com.google.android.c2dm.intent.REGISTER pkg=com.google.android.gsf (has extras) } without permission com.google.android.c2dm.permission.RECEIVE
07-27 18:11:23.504: E/AndroidRuntime(11390): at android.app.ContextImpl.startService(ContextImpl.java:1356)
07-27 18:11:23.504: E/AndroidRuntime(11390): at android.content.ContextWrapper.startService(ContextWrapper.java:359)
07-27 18:11:23.504: E/AndroidRuntime(11390): at com.google.android.gcm.GCMRegistrar.internalRegister(GCMRegistrar.java:229)
07-27 18:11:23.504: E/AndroidRuntime(11390): at com.google.android.gcm.GCMRegistrar.register(GCMRegistrar.java:217)
07-27 18:11:23.504: E/AndroidRuntime(11390): at com.example.gcmtutorial.MainActivity.onCreate(MainActivity.java:24)
07-27 18:11:23.504: E/AndroidRuntime(11390): at android.app.Activity.performCreate(Activity.java:4538)
07-27 18:11:23.504: E/AndroidRuntime(11390): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1071)
07-27 18:11:23.504: E/AndroidRuntime(11390): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2161)
07-27 18:11:23.504: E/AndroidRuntime(11390): ... 11 more
I have Google them up, but there seems to be no solution.
My second question is: How can I write a php server using GCM I have referred to: GCM sending with curl (php) GCM with PHP (Google Cloud Messaging)
The thing that I don't get is what does registration ID mean
