[must see for developers] [push kit] collection of typical problems of push service 3

 【 Problem description 】

Can't get Push Token, How to solve ？

【 Solution 】

1. Check Push push API Whether the rights and interests are opened .

2. Check AGC Whether the corresponding information of the console application is correct .

3.EMUI 9.0.0 Of Push Token Please return with onNewToken The information returned shall prevail , Ensure that the corresponding service class is configured in the manifest file

4. clear hms core Cache and try again （ Find settings - application - Application management - Search for hms core, Clean up the cache or click the three click buttons in the upper right corner , Uninstall the update to the latest version and try again ）

5. Uninstall and reinstall the application before getting it again Push Token

【 Problem description 2】

Lead to Push Token What are the reasons for the change ？

【 Solution 】

Token It will change in the following scenarios, including but not limited to ：

1. Uninstall and reload the application .

2. Application call logout Token Method .

3. The user restores the factory settings .

4. Clear application data , Re enter the app .

matters needing attention ：token It is changing.

1. Don't use fixed judgment Token length , Because the subsequent length is variable .

2. Applied Token To update regularly （ It is recommended that the application get Token, If it is different from the last one , The newly acquired Token Report to your server ）.

3. Do not use Token Track and mark users .

【 Problem description 3】

Through the end-to-side method , Modify the number of desktop corner marks , When the number of subscripts is 0 when , The corner mark does not display

【 Solution 】

  private void changeBadge(Application application, int number){
        String packageName = application.getPackageName();
        Bundle bundle = new Bundle();
        bundle.putString("package", packageName);
        ComponentName launchClassComponent = application.getPackageManager().getLaunchIntentForPackage(packageName).getComponent();
        if (launchClassComponent == null) {
            return;
        }
        String launchClassName = launchClassComponent.getClassName();
        bundle.putString("class", launchClassName);
        bundle.putInt("badgenumber", number);
        try {
            Bundle result = application.getContentResolver().call(Uri.parse("content://com.huawei.android.launcher.settings/badge/"), "change_badge", null, bundle);
            Log.i(TAG, "clearBadge result = " + result);
        } catch (Exception e) {
            Log.i(TAG, "clearBadge error ");
        }
    }

【 Problem description 4】

Through the following code , Manually add message notification channels on the end side

【 Solution 】

    @RequiresApi(api = Build.VERSION_CODES.O)
    private void addNotificationChannel(){
        NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        // Create a notification channel instance 
        // And set properties for it 
        // Notification channel ID, Write casually 
        String id = "my_channel_01";
        // The name of the notification channel that users can see ,R.string.app_name Namely strings.xml The parameters of the file , Just customize one 
        CharSequence name = getString(R.string.app_name);
        // Description of the notification visible to the user 
        String description = getString(R.string.app_name);
        // structure NotificationChannel example 
        NotificationChannel notificationChannel =
                new NotificationChannel(id, name, NotificationManager.IMPORTANCE_HIGH);
        // Configure the properties of the notification channel 
        notificationChannel.setDescription(description);
        // Set the flash when the notification appears 
        notificationChannel.enableLights(true);
        notificationChannel.setLightColor(Color.RED);
        // Set the vibration when the notification appears 
        notificationChannel.enableVibration(true);
        notificationChannel.setShowBadge(false);

        notificationChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 100});
        // stay notificationManager Create notification channels in 
        manager.createNotificationChannel(notificationChannel);
        // Blue words are a new method , Old quilt api To give up 
        Notification notification = new NotificationCompat.Builder(this, id)
                .setContentTitle(" title ")
                .setContentText(" Content 666666666666666666666666666")
                .setWhen(System.currentTimeMillis())
                .setSmallIcon(R.drawable.ic_launcher_background)
                .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.btn_round_background))
                .build();
        manager.notify(1, notification);

    }

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