Android Status Bar Icon Size - Using Cordova / Phonegap Push Plugin

Question

Im developing an Android app using Ionic (Cordova + AngularJS). With it i use the Push Plugin (https://github.com/phonegap-build/PushPlugin)

In my resources Folder i have 6 different Application Icons specified, from ldpi to xxxhdpi

<icon src="resources/android/icon/drawable-ldpi-icon.png" density="ldpi"/>
<icon src="resources/android/icon/drawable-mdpi-icon.png" density="mdpi"/>
<icon src="resources/android/icon/drawable-hdpi-icon.png" density="hdpi"/>
<icon src="resources/android/icon/drawable-xhdpi-icon.png" density="xhdpi"/>
<icon src="resources/android/icon/drawable-xxhdpi-icon.png" density="xxhdpi"/>
<icon src="resources/android/icon/drawable-xxxhdpi-icon.png" density="xxxhdpi"/>

Now after i build this, my final resources folder structure looks something like this:

android/res/drawable-ldpi/icon.png
android/res/drawable-mdpi/icon.png

and so on...

Now this works perfectly fine for the App icon on all devices. But if i get a Push Notification, the app icon appearing in the status bar is too big, so only the middle of the icon is displayed (only for the first seconds, seems there is a reload of the notification after that (if i pull down the status bar for example) it is displayed correctly).

After a bit of research i found that the icons i provided are correct for the general app icons, but icons for the status bar have to be in another dimension as i found out here: Android status bar expects icons of size 25x25dp while guidelines recommend 32x32dp. Who is wrong? (2nd answer)

For example, using my Samsung s5 i switched out my xxhdpi icon of 144*144px for the same icon in 72*72px size and it works. the icon is not cut anymore.

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Now to my question: How do i have to setup this "secondary" icons which i use for the notifications only in my resources folder without overwriting the original ones?

Answer 1

You don't need to be so stricted about the image size. Put two icons in the platform/android/res/drawable folder. One to show on navigation bar on lollipop (eg.: small_icon.png), it needs to be white and with no background. And other one to older android versions (eg.: large_icon.png).

Open the PushPlugin config file located at:

platforms/android/src/com/plugin/gcm/GCMIntentService.java

Set your icons path in the NotificationCompat.Builder object:

.setSmallIcon(com.domain.appName.R.drawable.small_icon)
.setLargeIcon(largeIcon)

The large icon needs to be a bitmap, so define before that:

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;

Bitmap largeIcon = BitmapFactory.decodeResource(getResources(), com.domain.appName.R.drawable.large_icon);

Hope it helps you.