在android中未收到推送通知 [英] Push Notification not Received in android
本文介绍了在android中未收到推送通知的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我是推送通知的新手，我正在尝试向已注册到 GCM 服务的特定设备发送推送通知.我根据 这个例子并在我的程序中进行了相应的修改.但是，我无法在设备上接收推送通知.
I am new to push notifications and I'm trying to send a push notification to a particular device which has already been registered to GCM service. I implemented my app according to this example and modified accordingly in my program. However, I am not able to receive push notifications on the device.
这是我的代码:
package com.markattendence.activites;
import static com.markattendence.activites.CommonUtilities.DISPLAY_MESSAGE_ACTION;
import static com.markattendence.activites.CommonUtilities.EXTRA_MESSAGE;
import static com.markattendence.activites.CommonUtilities.SENDER_ID;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.content.WakefulBroadcastReceiver;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gcm.GCMRegistrar;
import com.markattendence.activites.MainActivity.YourAsyncTaskLogin;
import com.markattendence.markattendence.R;
public class NotificationActivity extends Activity {
// label to display gcm messages
TextView lblMessage;
// Asyntask
AsyncTask<Void, Void, Void> mRegisterTask;
// Alert dialog manager
AlertDialogManager alert = new AlertDialogManager();
// Connection detector
ConnectionDetector cd;
private String userFName;
private String latitude;
private String longitude;
private static String KEY_SUCCESS = "success";
private static String KEY_ERROR = "error";
private static String KEY_ERROR_MSG = "error_msg";
private static String KEY_UID = "uid";
private static String KEY_FNAME = "fname";
private static String KEY_EMAIL = "email";
private static String KEY_LNAME = "lname";
UserFunctions userFunction;
private JSONObject json;
public static String name;
public static String email;
SharedPreferences prefs;
public static final String MyPREFERENCES = "MyPrefs";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_notification);
cd = new ConnectionDetector(getApplicationContext());
prefs = getSharedPreferences(MyPREFERENCES, Context.MODE_PRIVATE);
if (prefs.contains("message")) {
lblMessage.setText(prefs.getString("message", ""));
}
// Check if Internet present
if (!cd.isConnectingToInternet()) {
// Internet Connection is not present
alert.showAlertDialog(NotificationActivity.this,
"Internet Connection Error",
"Please connect to working Internet connection", false);
// stop executing code by return
return;
}
// Getting name, email from intent
Intent i = getIntent();
name = i.getStringExtra("uFName");
userFName = i.getStringExtra("uFName");
email = i.getStringExtra("email");
latitude = i.getStringExtra("latitude");
longitude = i.getStringExtra("longitude");
// Make sure the device has the proper dependencies.
GCMRegistrar.checkDevice(this);
// Make sure the manifest was properly set - comment out this line
// while developing the app, then uncomment it when it's ready.
GCMRegistrar.checkManifest(this);
lblMessage = (TextView) findViewById(R.id.lblMessage);
registerReceiver(mHandleMessageReceiver, new IntentFilter(
DISPLAY_MESSAGE_ACTION));
// Get GCM registration id
final String regId = GCMRegistrar.getRegistrationId(this);
// Check if regid already presents
if (regId.equals("")) {
// Registration is not present, register now with GCM
GCMRegistrar.register(this, SENDER_ID);
} else {
// Device is already registered on GCM
if (GCMRegistrar.isRegisteredOnServer(this)) {
// Skips registration.
Toast.makeText(getApplicationContext(),
"Already registered with GCM", Toast.LENGTH_LONG)
.show();
} else {
// Try to register again, but not in the UI thread.
// It's also necessary to cancel the thread onDestroy(),
// hence the use of AsyncTask instead of a raw thread.
final Context context = this;
mRegisterTask = new AsyncTask<Void, Void, Void>() {
@Override
protected Void doInBackground(Void... params) {
// Register on our server
// On server creates a new user
ServerUtilities.register(context, name, email, regId);
return null;
}
@Override
protected void onPostExecute(Void result) {
mRegisterTask = null;
}
};
mRegisterTask.execute(null, null, null);
}
}
if(name != null){
userFunction = new UserFunctions();
new YourAsyncTaskLogin().execute();
}
}
/**
* Receiving push messages
* */
private final WakefulBroadcastReceiver mHandleMessageReceiver = new WakefulBroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
ComponentName comp = new ComponentName(context.getPackageName(),
GCMIntentService.class.getName());
// Start the service, keeping the device awake while it is launching.
startWakefulService(context, (intent.setComponent(comp)));
setResultCode(Activity.RESULT_OK);
String newMessage = intent.getExtras().getString(EXTRA_MESSAGE);
// Waking up mobile if it is sleeping
WakeLocker.acquire(getApplicationContext());
/**
* Take appropriate action on this message depending upon your app
* requirement For now i am just displaying it on the screen
* */
// Showing received message
lblMessage.append(newMessage + "
");
Toast.makeText(getApplicationContext(),
"New Message: asd" + newMessage, Toast.LENGTH_LONG).show();
prefs = context.getSharedPreferences(MyPREFERENCES,
Context.MODE_PRIVATE);
Editor editor = prefs.edit();
editor.putString("message", lblMessage.getText().toString());
editor.commit();
// Releasing wake lock
WakeLocker.release();
}
};
@Override
protected void onDestroy() {
if (mRegisterTask != null) {
mRegisterTask.cancel(true);
}
try {
unregisterReceiver(mHandleMessageReceiver);
GCMRegistrar.onDestroy(this);
} catch (Exception e) {
Log.e("UnRegister Receiver Error", "> " + e.getMessage());
}
super.onDestroy();
}
class YourAsyncTaskLogin extends AsyncTask<Void, Void, Void> {
private ProgressDialog _ProgressDialog;
private String userId;
@Override
protected void onPreExecute() {
// show your dialog here
_ProgressDialog = ProgressDialog.show(NotificationActivity.this,
"", "Loading", true);
}
@Override
protected Void doInBackground(Void... params) {
try {
json = userFunction.sendMessage(userFName,
" has marked attendence of ", "CheckIN", latitude,
longitude);
/*
* HttpClient Client = new DefaultHttpClient(); String
* SetServerString = "";
*
* // Create Request to server and get response
*
* HttpGet httpget = new HttpGet(
* "http://wibman.com/pnt/send_message.php?message=" + name +
* "checked in&Latitude=" + latitude + "&Longitude=" +
* longitude); ResponseHandler<String> responseHandler = new
* BasicResponseHandler(); SetServerString =
* Client.execute(httpget, responseHandler);
*/
// Show response on activity
// content.setText(SetServerString);
} catch (Exception ex) {
ex.printStackTrace();
// content.setText("Fail!");
}
return null;
}
protected void onPostExecute(Void result) {
try {
Log.e("aaaaaaaaaaaaaaaaaaaaaaaaaaa",
json.getString(KEY_SUCCESS));
if (json.getString(KEY_SUCCESS) != null) {
// loginErrorMsg.setText("");
String res = json.getString(KEY_SUCCESS);
if (Integer.parseInt(res) == 1) {
/*userId = json.getString(KEY_UID);
userFName = json.getString(KEY_FNAME);
userFName.replace(""", "");
userId.replace(""", "");
Log.e("uid=aaa", userId);
Log.e("nameuser", userFName);*/
Intent dashboard = new Intent(getApplicationContext(),
MainActivity.class);
// Close all views before launching
// Dashboard
startActivity(dashboard);
// Close Login Screen
finish();
} else {
// Error in login
// loginErrorMsg.setText("Incorrect username/password");
_ProgressDialog.cancel();
alert.showAlertDialog(NotificationActivity.this,
"Attendence Failed..",
"Mark Attendence Failed.", false);
// loginStatusTxtView.setText("Incorrect username/password");
}
} else {
// Error in login
// loginErrorMsg.setText("Incorrect username/password");
_ProgressDialog.cancel();
alert.showAlertDialog(NotificationActivity.this,
"Attendence Failed..", "Mark Attendence Failed.",
false);
// loginStatusTxtView.setText("Incorrect username/password");
}
} catch (JSONException e) {
e.printStackTrace();
Log.e("error", e.getMessage());
}
_ProgressDialog.dismiss();
}
}
}
Manifest.xml
Manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.markattendence.markattendence"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="18" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<!-- 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" />
<!-- Creates a custom permission so only this app can receive its messages. -->
<permission
android:name="com.markattendence.markattendence.permission.C2D_MESSAGE"
android:protectionLevel="signature" />
<uses-permission android:name="com.markattendence.markattendence.permission.C2D_MESSAGE" />
<uses-permission android:name="com.markattendence.activites.permission.C2D_MESSAGE" />
<!-- This app has permission to register and receive data message. -->
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<!-- Network State Permissions to detect Internet status -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<!-- Permission to vibrate -->
<uses-permission android:name="android.permission.VIBRATE" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature
android:name="android.hardware.camera.front"
android:required="false" />
<uses-feature android:name="android.hardware.camera.autofocus" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<application
android:allowBackup="true"
android:icon="@drawable/mmes_logo"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.markattendence.markattendence.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>
<activity android:name="com.markattendence.markattendence.MarkAttendenceActivity" >
</activity>
<activity android:name="com.markattendence.markattendence.NotificationActivity" >
</activity>
<receiver
android:name="com.google.android.gcm.GCMBroadcastReceiver"
android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter>
<!-- Receives the actual messages. -->
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<!-- Receives the registration id. -->
<action android:name="com.google.android.c2dm.intent.REGISTRATION" />
<category android:name="com.markattendence.markattendence" />
</intent-filter>
</receiver>
<service android:name="com.markattendence.markattendence.GCMIntentService" />
</application>
我在接收通知时遇到问题.服务器端代码工作正常.
I am having a problem in receiving the notification. Server side code is working correctly.
我的原木猫说:
{"multicast_id":5884981605957538237,"success":1,"failure":0,"canonical_ids":0,"results":[{"message_id":"0:1393495991926450%978fee92f9fd7ecd"}]}
主要问题是，如果设备有示例应用程序，它会在该应用程序而不是我的自定义应用程序中收到通知.如果我删除该应用程序，我将不会收到任何通知.所以我很困惑，必须在我的应用程序中接收通知而不是 androidhive 应用程序的通知，但推送通知显示在 androidhive 应用程序中.请帮我解决这个问题.提前致谢.
推荐答案
用于将推送发送到特定设备.首先，您需要从 FCM 中选择令牌:
For sending the push to a specific device. First of all you need to pick the token from the FCM :
String token = FirebaseInstanceId.getInstance().getToken();
然后这个唯一的令牌用于从服务器发布请求发送推送请求.请找到帖子请求的标题以及所需的正文结构.
Then this unique token is used to send the push request from server post request. Please find the headers of the post request along with required structure of the body.
标题
Content-Type 'application/json'
Authorization 'key=(server-key)'
注意:标题中只允许使用这些值.这里的服务器密钥"是您从 FCM 控制台提供的浏览器密钥.
推送请求正文
{
"data": {
"NotificationDetailsID": 1131,
"MessageGroup": "HR",
"Message": "this is notification"
},
"to": "firebase-token-of-androidDevice"
}
这是服务器端实现，这肯定会起作用.正如我们最后测试的那样.即使应用程序关闭，您也会收到推送.
这篇关于在android中未收到推送通知的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
