我在Android中推送通知GCM时遇到问题,设备注册得很好,我得到了令牌,但是当我使用gradle命令发送通知时 -
。\ gradlew.bat run -Pmsg =“”
我明白了 - { “MESSAGE_ID”:5514585301987612462} 检查您的设备/模拟器是否有通知或logcat以确认收到GCM消息。 我既没有在模拟器中也没有在logcat中收到消息。
GcmSender.java
package gcm.play.android.samples.com.gcmsender;
import org.apache.commons.io.IOUtils;
import org.json.JSONObject;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
public class GcmSender {
public static final String API_KEY = "AIzaSyA9eC36JEy5JcbdtfU6zW5IhmJrkqioT7o";
public static void main(String[] args) {
if (args.length < 1 || args.length > 2 || args[0] == null) {
System.err.println("usage: ./gradlew run -Pmsg=\"MESSAGE\" [-Pto=\"DEVICE_TOKEN\"]");
System.err.println("");
System.err.println("Specify a test message to broadcast via GCM. If a device's GCM registration token is\n" +
"specified, the message will only be sent to that device. Otherwise, the message \n" +
"will be sent to all devices subscribed to the \"global\" topic.");
System.err.println("");
System.err.println("Example (Broadcast):\n" +
"On Windows: .\\gradlew.bat run -Pmsg=\"<Your_Message>\"\n" +
"On Linux/Mac: ./gradlew run -Pmsg=\"<Your_Message>\"");
System.err.println("");
System.err.println("Example (Unicast):\n" +
"On Windows: .\\gradlew.bat run -Pmsg=\"<Your_Message>\" -Pto=\"<Your_Token>\"\n" +
"On Linux/Mac: ./gradlew run -Pmsg=\"<Your_Message>\" -Pto=\"<Your_Token>\"");
System.exit(1);
}
try {
// Prepare JSON containing the GCM message content. What to send and where to send.
JSONObject jGcmData = new JSONObject();
JSONObject jData = new JSONObject();
jData.put("message", args[0].trim());
// Where to send GCM message.
if (args.length > 1 && args[1] != null) {
jGcmData.put("to", args[1].trim());
} else {
jGcmData.put("to", "/topics/global");
}
// What to send in GCM message.
jGcmData.put("data", jData);
// Create connection to send GCM Message request.
URL url = new URL("https://android.googleapis.com/gcm/send");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestProperty("Authorization", "key=" + API_KEY);
conn.setRequestProperty("Content-Type", "application/json");
conn.setRequestMethod("POST");
conn.setDoOutput(true);
// Send GCM message content.
OutputStream outputStream = conn.getOutputStream();
outputStream.write(jGcmData.toString().getBytes());
// Read GCM response.
InputStream inputStream = conn.getInputStream();
String resp = IOUtils.toString(inputStream);
System.out.println(resp);
System.out.println("Check your device/emulator for notification or logcat for " +
"confirmation of the receipt of the GCM message.");
} catch (IOException e) {
System.out.println("Unable to send GCM message.");
System.out.println("Please ensure that API_KEY has been replaced by the server " +
"API key, and that the device's registration token is correct (if specified).");
e.printStackTrace();
}
}
}
和RegistrationIntentService.java
package gcm.play.android.samples.com.gcmquickstart;
import android.app.IntentService;
import android.content.Intent;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import android.support.v4.content.LocalBroadcastManager;
import android.util.Log;
import com.google.android.gms.gcm.GcmPubSub;
import com.google.android.gms.gcm.GoogleCloudMessaging;
import com.google.android.gms.iid.InstanceID;
import java.io.IOException;
public class RegistrationIntentService extends IntentService {
private static final String TAG = "RegIntentService";
private static final String[] TOPICS = {"global"};
public RegistrationIntentService() {
super(TAG);
}
@Override
protected void onHandleIntent(Intent intent) {
SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
try {
InstanceID instanceID = InstanceID.getInstance(this);
String token = instanceID.getToken(getString(R.string.gcm_defaultSenderId),
GoogleCloudMessaging.INSTANCE_ID_SCOPE, null);
Log.i(TAG, "GCM Registration Token: " + token);
sendRegistrationToServer(token);
subscribeTopics(token);
sharedPreferences.edit().putBoolean(QuickstartPreferences.SENT_TOKEN_TO_SERVER, true).apply();
// [END register_for_gcm]
} catch (Exception e) {
Log.d(TAG, "Failed to complete token refresh", e);
sharedPreferences.edit().putBoolean(QuickstartPreferences.SENT_TOKEN_TO_SERVER, false).apply();
}
Intent registrationComplete = new Intent(QuickstartPreferences.REGISTRATION_COMPLETE);
LocalBroadcastManager.getInstance(this).sendBroadcast(registrationComplete);
}
private void sendRegistrationToServer(String token) {
// Add custom implementation, as needed.
}
private void subscribeTopics(String token) throws IOException {
GcmPubSub pubSub = GcmPubSub.getInstance(this);
for (String topic : TOPICS) {
pubSub.subscribe(token, "/topics/" + topic, null);
}
}
}
MainActivity.java
package gcm.play.android.samples.com.gcmquickstart;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.content.LocalBroadcastManager;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.ProgressBar;
import android.widget.TextView;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GoogleApiAvailability;
public class MainActivity extends AppCompatActivity {
private static final int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;
private static final String TAG = "MainActivity";
private BroadcastReceiver mRegistrationBroadcastReceiver;
private ProgressBar mRegistrationProgressBar;
private TextView mInformationTextView;
private boolean isReceiverRegistered;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mRegistrationProgressBar = (ProgressBar) findViewById(R.id.registrationProgressBar);
mRegistrationBroadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
mRegistrationProgressBar.setVisibility(ProgressBar.GONE);
SharedPreferences sharedPreferences =
PreferenceManager.getDefaultSharedPreferences(context);
boolean sentToken = sharedPreferences
.getBoolean(QuickstartPreferences.SENT_TOKEN_TO_SERVER, false);
if (sentToken) {
mInformationTextView.setText(getString(R.string.gcm_send_message));
} else {
mInformationTextView.setText(getString(R.string.token_error_message));
}
}
};
mInformationTextView = (TextView) findViewById(R.id.informationTextView);
// Registering BroadcastReceiver
registerReceiver();
if (checkPlayServices()) {
// Start IntentService to register this application with GCM.
Intent intent = new Intent(this, RegistrationIntentService.class);
startService(intent);
}
}
@Override
protected void onResume() {
super.onResume();
registerReceiver();
}
@Override
protected void onPause() {
LocalBroadcastManager.getInstance(this).unregisterReceiver(mRegistrationBroadcastReceiver);
isReceiverRegistered = false;
super.onPause();
}
private void registerReceiver(){
if(!isReceiverRegistered) {
LocalBroadcastManager.getInstance(this).registerReceiver(mRegistrationBroadcastReceiver,
new IntentFilter(QuickstartPreferences.REGISTRATION_COMPLETE));
isReceiverRegistered = true;
}
}
private boolean checkPlayServices() {
GoogleApiAvailability apiAvailability = GoogleApiAvailability.getInstance();
int resultCode = apiAvailability.isGooglePlayServicesAvailable(this);
if (resultCode != ConnectionResult.SUCCESS) {
if (apiAvailability.isUserResolvableError(resultCode)) {
apiAvailability.getErrorDialog(this, resultCode, PLAY_SERVICES_RESOLUTION_REQUEST)
.show();
} else {
Log.i(TAG, "This device is not supported.");
finish();
}
return false;
}
return true;
}
}
MyGcmListenerService.java
package gcm.play.android.samples.com.gcmquickstart;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.NotificationCompat;
import android.util.Log;
import com.google.android.gms.gcm.GcmListenerService;
public class MyGcmListenerService extends GcmListenerService {
private static final String TAG = "MyGcmListenerService";
// [START receive_message]
@Override
public void onMessageReceived(String from, Bundle data) {
String message = data.getString("message");
Log.d(TAG, "From: " + from);
Log.d(TAG, "Message: " + message);
if (from.startsWith("/topics/")) {
// message received from some topic.
} else {
// normal downstream message.
}
sendNotification(message);
}
private void sendNotification(String message) {
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_stat_ic_notification)
.setContentTitle("GCM Message")
.setContentText(message)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}
}
MyInstanceIDListenerService.java
package gcm.play.android.samples.com.gcmquickstart;
import android.content.Intent;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import android.util.Log;
import com.google.android.gms.iid.InstanceID;
import com.google.android.gms.iid.InstanceIDListenerService;
public class MyInstanceIDListenerService extends InstanceIDListenerService {
private static final String TAG = "MyInstanceIDLS";
// [START refresh_token]
@Override
public void onTokenRefresh() {
Intent intent = new Intent(this, RegistrationIntentService.class);
startService(intent);
}
// [END refresh_token]
}
QuickstartPreferences.java 包gcm.play.android.samples.com.gcmquickstart;
public class QuickstartPreferences {
public static final String SENT_TOKEN_TO_SERVER = "sentTokenToServer";
public static final String REGISTRATION_COMPLETE = "registrationComplete";
}
的AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="gcm.play.android.samples.com.gcmquickstart" >
<!-- [START gcm_permission] -->
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<!-- [END gcm_permission] -->
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="gcm.play.android.samples.com.gcmquickstart.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>
<!-- [START gcm_receiver] -->
<receiver
android:name="com.google.android.gms.gcm.GcmReceiver"
android:exported="true"
android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<category android:name="gcm.play.android.samples.com.gcmquickstart" />
</intent-filter>
</receiver>
<!-- [END gcm_receiver] -->
<!-- [START gcm_listener] -->
<service
android:name="gcm.play.android.samples.com.gcmquickstart.MyGcmListenerService"
android:exported="false" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
</intent-filter>
</service>
<!-- [END gcm_listener] -->
<!-- [START instanceId_listener] -->
<service
android:name="gcm.play.android.samples.com.gcmquickstart.MyInstanceIDListenerService"
android:exported="false">
<intent-filter>
<action android:name="com.google.android.gms.iid.InstanceID"/>
</intent-filter>
</service>
<!-- [END instanceId_listener] -->
<service
android:name="gcm.play.android.samples.com.gcmquickstart.RegistrationIntentService"
android:exported="false">
</service>
</application>
</manifest>