如何为Android应用生成通知。该通知显示给安装了我的应用的所有用户。我是Android新手。所以，请帮我正确行动......谢谢
我的应用程序只通过我的Web应用程序接收通知。是否可能如何从Web应用程序接收通知....任何人都可以指导我。如何启动编码来实现它。
答案 0 :(得分：0)
嘿我发布完整代码....
第一项活动 - GcmBroadcastReciver
import com.example.vchat.R;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.app.Notification;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.support.v4.content.WakefulBroadcastReceiver;
@TargetApi(Build.VERSION_CODES.HONEYCOMB) public class GcmBroadcastReceiver extends WakefulBroadcastReceiver {
@SuppressLint("NewApi") @Override
public void onReceive(Context context, Intent intent)
{
ComponentName comp = new ComponentName(context.getPackageName(),
GcmIntentServicePush.class.getName());
startWakefulService(context, (intent.setComponent(comp)));
setResultCode(Activity.RESULT_OK);
Notification notification = new Notification.Builder(context).setSmallIcon(R.drawable.app_icon).build();
// Show controls on lock screen even when user hides sensitive content.
//.setVisibility(Notification.VISIBILITY_PUBLIC)
//.setSmallIcon(R.drawable.logo).build();
// Add media control buttons that invoke intents in your media service
//.addAction(R.drawable.ic_prev, "Previous", prevPendingIntent) // #0
//.addAction(R.drawable.ic_pause, "Pause", pausePendingIntent) // #1
//.addAction(R.drawable.ic_next, "Next", nextPendingIntent) // #2
// Apply the media style template
//.setStyle(new Notification.MediaStyle()
//.setShowActionsInCompactView(1 /* #1: pause button */)
//.setMediaSession(mMediaSession.getSessionToken())
// .setContentTitle("Wonderful music")
// .setContentText("My Awesome Band")
//.setLargeIcon(albumArtBitmap)
//.build();
//Toast.makeText(GcmBroadcastReceiver.this, "received push", Toast.LENGTH_LONG).show();
//Toast.makeText(context, "Pushnotification received", 3500).show();//("Push received !", "Push");
}
}
GcmIntentServicePush.java
import com.example.vchat.Friends_listing;
import com.example.vchat.R;
import com.google.android.gms.gcm.GoogleCloudMessaging;
public class GcmIntentServicePush extends IntentService {
public static final int NOTIFICATION_ID = 1;
private NotificationManager mNotificationManager;
private final static String TAG = "GcmIntentService";
public GcmIntentServicePush() {
super("GcmIntentService");
}
@Override
protected void onHandleIntent(Intent intent) {
Bundle extras = intent.getExtras();
Log.e(TAG, "Notification Data Json :" + extras.getString("message"));
GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this);
String messageType = gcm.getMessageType(intent);
if (!extras.isEmpty()) {
if (GoogleCloudMessaging.MESSAGE_TYPE_SEND_ERROR
.equals(messageType)) {
sendNotification("Send error: " + extras.toString());
} else if (GoogleCloudMessaging.MESSAGE_TYPE_DELETED
.equals(messageType)) {
sendNotification("Deleted messages on server: "
+ extras.toString()); // If it's a regular GCM message,
// do some work.
} else if (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE
.equals(messageType)) {
// This loop represents the service doing some work.
for (int i = 0; i < 5; i++) {
Log.e(TAG,
" Working... " + (i + 1) + "/5 @ "
+ SystemClock.elapsedRealtime());
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
}
}
Log.e(TAG, "Completed work @ " + SystemClock.elapsedRealtime());
sendNotification(extras.getString("message"));
}
}
// Release the wake lock provided by the WakefulBroadcastReceiver.
GcmBroadcastReceiver.completeWakefulIntent(intent);
}
// Put the message into a notification and post it.
// This is just one simple example of what you might choose to do with
// a GCM message.
private void sendNotification(String msg)
{
// Log.e("msgg",""+msg.toString());
mNotificationManager = (NotificationManager) this
.getSystemService(Context.NOTIFICATION_SERVICE);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, Friends_listing.class), 0);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
this)
.setSmallIcon(R.drawable.app_icon)
.setContentTitle("Vchat")
.setStyle(new NotificationCompat.BigTextStyle().bigText(msg))
.setContentText(msg);
// .setDefaults(
// Notification.DEFAULT_SOUND
// | Notification.DEFAULT_VIBRATE);
mBuilder.setContentIntent(contentIntent);
mBuilder.setAutoCancel(true);
Notification notification = mBuilder.build();
notification.sound = Uri.parse("android.resource://" + getPackageName() + "/" + R.raw.push_sound);
mNotificationManager.notify(NOTIFICATION_ID, notification);
}
}
SimpleWakeFullReciver.java
import android.content.Context;
import android.content.Intent;
import android.os.SystemClock;
import android.support.v4.content.WakefulBroadcastReceiver;
import android.util.Log;
public class SimpleWakefulReceiver extends WakefulBroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// This is the Intent to deliver to our service.
Intent service = new Intent(context, SimpleWakefulService.class);
// Start the service, keeping the device awake while it is launching.
Log.e("SimpleWakefulReceiver", "Starting service @ " + SystemClock.elapsedRealtime());
startWakefulService(context, service);
}
}
SimpleWakefullService
import android.app.IntentService;
import android.content.Intent;
import android.os.SystemClock;
import android.util.Log;
public class SimpleWakefulService extends IntentService {
public SimpleWakefulService() {
super("SimpleWakefulService");
}
@Override
protected void onHandleIntent(Intent intent) {
// At this point SimpleWakefulReceiver is still holding a wake lock
// for us. We can do whatever we need to here and then tell it that
// it can release the wakelock. This sample just does some slow work,
// but more complicated implementations could take their own wake
// lock here before releasing the receiver's.
//
// Note that when using this approach you should be aware that if your
// service gets killed and restarted while in the middle of such work
// (so the Intent gets re-delivered to perform the work again), it will
// at that point no longer be holding a wake lock since we are depending
// on SimpleWakefulReceiver to that for us. If this is a concern, you can
// acquire a separate wake lock here.
for (int i=0; i<5; i++) {
Log.e("SimpleWakefulReceiver", "Running service " + (i+1)
+ "/5 @ " + SystemClock.elapsedRealtime());
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
}
}
Log.e("SimpleWakefulReceiver", "Completed service @ " + SystemClock.elapsedRealtime());
SimpleWakefulReceiver.completeWakefulIntent(intent);
}
}
制作新活动并粘贴以下代码....
if (checkPlayServices()) {
gcm = GoogleCloudMessaging.getInstance(this);
regid = getRegistrationId(context);
Log.e("regid", ">>>>" + regid);
try {
sharedPreference_Main.registeration_id("" + regid);
shared_preference.registeration_id("" + regid);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
SharedPreferences pref = getApplicationContext()
.getSharedPreferences("MyPref", 0);
pref.edit().clear().commit();
Editor editor = pref.edit();
editor.putString("PROPERTY_REG_ID", regid);
editor.commit();
if (regid.isEmpty()) {
registerInBackground();
}
} else {
Log.e(TAG, "No valid Google Play Services APK found.");
}
}
private String getRegistrationId(Context context) {
final SharedPreferences prefs = getGCMPreferences(context);
String registrationId = prefs.getString(PROPERTY_REG_ID, "");
if (registrationId.isEmpty()) {
Log.e(TAG, "Registration not found.");
return "";
}
int registeredVersion = prefs.getInt(PROPERTY_APP_VERSION,
Integer.MIN_VALUE);
int currentVersion = getAppVersion(context);
if (registeredVersion != currentVersion) {
Log.e(TAG, "App version changed.");
return "";
}
return registrationId;
}
private boolean checkPlayServices() {
int resultCode = GooglePlayServicesUtil
.isGooglePlayServicesAvailable(this);
Log.e("resultCode: ", "" + resultCode);
if (resultCode != ConnectionResult.SUCCESS) {
if (GooglePlayServicesUtil.isUserRecoverableError(resultCode)) {
GooglePlayServicesUtil.getErrorDialog(resultCode, this,
PLAY_SERVICES_RESOLUTION_REQUEST).show();
} else {
Log.e(TAG, "This device is not supported.");
finish();
}
return false;
}
return true;
}
private SharedPreferences getGCMPreferences(Context context) {
return getSharedPreferences(Splash_MainActivity.class.getSimpleName(),
Context.MODE_PRIVATE);
}
@SuppressWarnings("unchecked")
private void registerInBackground() {
Log.e("msg", "registerInBackground");
new AsyncTask() {
@SuppressWarnings("unused")
protected Object doInBackground(Object... params) {
String msg = "";
try {
if (gcm == null) {
gcm = GoogleCloudMessaging.getInstance(context);
}
regid = gcm.register(SENDER_ID);
sharedPreference_Main.registeration_id("" + regid);
shared_preference.registeration_id("" + regid);
msg = "Device registered, registration ID=" + regid;
Log.e("msg", msg);
SharedPreferences pref = getApplicationContext()
.getSharedPreferences("MyPref", 0);
// pref.edit().clear().commit();
Editor editor = pref.edit();
editor.putString("PROPERTY_REG_ID", regid);
editor.commit();
sendRegistrationIdToBackend();
storeRegistrationId(context, regid);
} catch (IOException ex) {
msg = "Error :" + ex.getMessage();
Log.e("msg", msg);
}
return msg;
}
protected void onPostExecute(String msg) {
// mDisplay.append(msg + "\n");
Log.e("msg", msg);
}
}.execute(null, null, null);
}
protected void sendRegistrationIdToBackend() {
// TODO Auto-generated method stub
}
private void storeRegistrationId(Context context, String regId) {
Log.e("storeRegistrationId : ", regId);
VChatPrefrence.getInstance(getApplicationContext()).setDeviceId(regId);
shared_preference.deviceId(regId);
final SharedPreferences prefs = getGCMPreferences(context);
int appVersion = getAppVersion(context);
Log.e(TAG, "Saving regId on app version " + appVersion);
SharedPreferences.Editor editor = prefs.edit();
editor.putString(PROPERTY_REG_ID, regId);
editor.putInt(PROPERTY_APP_VERSION, appVersion);
editor.commit();
}
private static int getAppVersion(Context context) {
try {
PackageInfo packageInfo = context.getPackageManager()
.getPackageInfo(context.getPackageName(), 0);
return packageInfo.versionCode;
} catch (NameNotFoundException e) {
// should never happen
throw new RuntimeException("Could not get package name: " + e);
}
}
也在活动中定义了这个..
public static final String PROPERTY_REG_ID = "registration_id";
private static final String PROPERTY_APP_VERSION = "appVersion";
String SENDER_ID = "xyz";
您可以通过google注册您的应用来获取发件人ID 使用以下链接获取更多信息
https://developers.google.com/cloud-messaging/android/client