how to set the value in custom notification textview

Question

please help me to set the text in textview in custom notification

    private void startNotification()
 {
     String ns = Context.NOTIFICATION_SERVICE;
    NotificationManager notificationManager = (NotificationManager) getSystemService(ns);
    Notification notification = new Notification(R.drawable.ic_launcher, null, System.currentTimeMillis());
    RemoteViews notificationView = new RemoteViews(getPackageName(),R.layout.mynotification);
    mRemoteViews.setTextViewText(R.id.appName, getResources().getText(0,"gfhf"));
    mBuilder.setContent(mRemoteViews);
    Intent notificationIntent = new Intent(this, FlashLight.class);
    PendingIntent pendingNotificationIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
    notification.contentView = notificationView;
    notification.contentIntent = pendingNotificationIntent;
    notification.flags |= Notification.FLAG_NO_CLEAR;
    Intent switchIntent = new Intent(this, switchButtonListener.class);
    PendingIntent pendingSwitchIntent = PendingIntent.getBroadcast(this, 0, switchIntent, 0);
    notificationView.setOnClickPendingIntent(R.id.closeOnFlash,  pendingSwitchIntent);
    notificationManager.notify(1, notification);

}

java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.RemoteViews.setTextViewText(int, java.lang.CharSequence)' on a null object reference

Please help me how to resolve this . how to set the value on textview in notification in android , Thanks in advance .

What exactly do you want ?? Do you want to create custom notification with your custom style textView ? For that create custom class and override DefaultNotificationFactory and create your own view — witted_coder, May 09 '16 at 07:53

Chaudhary Amar · Accepted Answer · 2016-05-09T07:45:29.663

5

Check this:

private void startNotification() {

    int icon = R.drawable.icon_48;
    long when = System.currentTimeMillis();
    Notification notification = new Notification(icon, "Custom Notification", when);

    NotificationManager mNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

    RemoteViews contentView = new RemoteViews(getPackageName(), R.layout.custom_notification);
    contentView.setImageViewResource(R.id.image, R.drawable.icon_48);
    contentView.setTextViewText(R.id.title, "Notification Title/App Name");
    contentView.setTextViewText(R.id.text, "message");
    notification.contentView = contentView;

    Intent notificationIntent = new Intent(this, YourClass.class);
    PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
    notification.contentIntent = contentIntent;

    notification.flags |= Notification.FLAG_AUTO_CANCEL;
    notification.defaults |= Notification.DEFAULT_LIGHTS; // LED
    notification.defaults |= Notification.DEFAULT_VIBRATE; //Vibration
    notification.defaults |= Notification.DEFAULT_SOUND; // Sound

    mNotificationManager.notify(1, notification);
}

custom_notification.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#fff"
android:padding="10dp">

<ImageView
    android:id="@+id/image"
    android:layout_width="wrap_content"
    android:layout_height="fill_parent"
    android:layout_alignParentLeft="true"
    android:layout_marginRight="10dp" />

<TextView
    android:id="@+id/title"
    style="Custom Notification Title"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_toRightOf="@id/image"
    android:textSize="18sp"
    android:textColor="#336ba4" />

<TextView
    android:id="@+id/text"
    style="Custom Notification Text"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@id/title"
    android:layout_toRightOf="@id/image"
    android:textSize="16sp"
    android:textColor="#336ba4" />
</RelativeLayout>

edited May 09 '16 at 07:45

answered May 09 '16 at 07:36

Chaudhary Amar

773
7
20

how to put the value at run time after calculation . thanks amarbir i got the value but it display zero nit actual value – techandroid07 May 09 '16 at 07:58
i want to set the battery current percentage value in that textview .. in that i am able to fetch the value but when i place into this text view it display zero – techandroid07 May 09 '16 at 08:01
have you checked that you are getting the battery percentage in your log or some where else?? textES.setText(String.format("%.1f",percentage) + "%"); – Chaudhary Amar May 09 '16 at 08:47
http://stackoverflow.com/questions/3291655/get-battery-level-and-state-in-android after that use sharedpreference to save it and get back to your Notification class. – Chaudhary Amar May 09 '16 at 08:58
is there any other way apart from sharedpreference to resolve this – techandroid07 May 09 '16 at 09:01
then save it in your sharedpreference class and get it back when you want to and use textview.setText(String.valueOf(level) + "%"); – Chaudhary Amar May 09 '16 at 09:01
yes if you are getting the battery status in the same class – Chaudhary Amar May 09 '16 at 09:02
ya we are getting that in same class .. then how do we do that – techandroid07 May 09 '16 at 09:04
public void onReceive(Context context, Intent intent) { boolean isPresent = intent.getBooleanExtra("present", false); String technology = intent.getStringExtra("technology"); int plugged = intent.getIntExtra("plugged", -1); int scale = intent.getIntExtra("scale", -1); int rawlevel = intent.getIntExtra("level", -1); int level = 0; Bundle bundle = intent.getExtras(); Log.i("BatteryLevel", bundle.toString()); if (isPresent) { if (rawlevel >= 0 && scale > 0) { level = (rawlevel * 100) / scale; } – techandroid07 May 09 '16 at 09:05
where is your textview on which you are setting the battery status. – Chaudhary Amar May 09 '16 at 09:06
have you check the link which i added in the comment earlier. – Chaudhary Amar May 09 '16 at 09:07
contentView.setTextViewText(R.id.title, "Notification Title/App Name"); in this text view i need to pleace the battery value – techandroid07 May 09 '16 at 09:08
yes!! contentView.setTextViewText(String.valueOf(level) + "%"); – Chaudhary Amar May 09 '16 at 09:10
i am doing in same way but it is showing zero value in this and this The method setTextViewText(int, CharSequence) in the type RemoteViews is not applicable for the arguments (String) error also – techandroid07 May 09 '16 at 09:12
contentView.setTextViewText(R.id.text,String.valueOf(level) + "%"); – Chaudhary Amar May 09 '16 at 09:17
still not working then just put your code in https://gist.github.com/ and share your link!! – Chaudhary Amar May 09 '16 at 09:25
https://gist.github.com/anonymous/551b4c2634e72830da1b8c533f28f9f8 getting zero in the textview – techandroid07 May 09 '16 at 09:36
its same as level only .. i try with different values – techandroid07 May 09 '16 at 09:47
Thanks Amarbir Singh u really help me lot .. u saved me – techandroid07 May 09 '16 at 09:55
If Working Fine Then Please Up Vote My Answer!! – Chaudhary Amar May 09 '16 at 09:57

how to set the value in custom notification textview

1 Answers1