【发布时间】:2018-09-30 08:22:24
【问题描述】:
在我的应用程序中,我想将 fireBase 用于通知。
我想在点击通知时(当应用程序关闭时,我的意思是应用程序是 background)将带有 putExtra 的数据发送到 mainActivity。
我写了下面的代码,但是当点击 notification (在应用程序中是背景)但显示 getStringExtra 的 null !
MyNotificationManager 类:
public class MyNotificationManager {
private Context mCtx;
private Uri soundUri;
private static MyNotificationManager mInstance;
public MyNotificationManager(Context context) {
mCtx = context;
}
public static synchronized MyNotificationManager getInstance(Context context) {
if (mInstance == null) {
mInstance = new MyNotificationManager(context);
}
return mInstance;
}
public void displayNotification(String title, String body) {
soundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Intent intent = new Intent(mCtx, MainActivity.class);
intent.putExtra("fcm_notification", "Y");
PendingIntent pendingIntent = PendingIntent.getActivity(mCtx, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(mCtx, Constants.NOTIF_CHANNEL_ID)
.setSmallIcon(R.mipmap.ic_launcher)
.setContentTitle(title)
.setSound(soundUri)
.setAutoCancel(true)
.setVibrate(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400})
.setContentText(body)
.setContentIntent(pendingIntent);
NotificationManager mNotifyMgr = (NotificationManager) mCtx.getSystemService(NOTIFICATION_SERVICE);
if (mNotifyMgr != null) {
mNotifyMgr.notify(1, mBuilder.build());
}
}
}
MyFirebaseMessagingService 类:
public class MyFirebaseMessagingService extends FirebaseMessagingService {
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
showNotify(remoteMessage.getFrom(), remoteMessage.getNotification().getBody());
}
private void showNotify(String title, String body) {
MyNotificationManager myNotificationManager = new MyNotificationManager(getApplicationContext());
//myNotificationManager.displayNotification(title, body);
myNotificationManager.displayNotification(title, body);
}
}
MainActivity 类:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (checkIntent()) return;
}
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
checkIntent();
}
}, 1000);
}
private boolean checkIntent() {
String value = getIntent().getStringExtra("fcm_notification");
Toast.makeText(context, "" + value, Toast.LENGTH_SHORT).show();
if (value == null) return false;
if (value.equals("Y")) {
startActivity(new Intent(this, LandingActivity.class));
// open one activity.
} else if (value.equals("another thing")) {
// open another activity.
}
finish();
return true;
}
当点击通知时(应用程序为背景),在Toast 中显示 null 消息,用于此行String value = getIntent().getStringExtra("fcm_notification");
我该如何解决?
【问题讨论】:
-
应用处于后台时,您需要发送
data payload从通知中获取数据。 -
@Yupi,你能帮帮我吗?请用我上面的代码发送给我代码。你能帮帮我吗?
-
如何发送通知?来自 Firebase 控制台?
标签: java android firebase android-intent android-notifications