converting drawable resource image into bitmap

Question

I am trying to use the Notification.Builder.setLargeIcon(bitmap) that takes a bitmap image. I have the image I want to use in my drawable folder so how do I convert that to bitmap?

poitroae · Accepted Answer · 2014-01-31T19:38:31.513

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You probably mean Notification.Builder.setLargeIcon(Bitmap), right? :)

Bitmap largeIcon = BitmapFactory.decodeResource(getResources(), R.drawable.large_icon);
notBuilder.setLargeIcon(largeIcon);

This is a great method of converting resource images into Android Bitmaps.

edited Jan 31 '14 at 19:38

answered Jan 03 '12 at 19:14

poitroae

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Why not hit the "Edit" button and fix the question? (More a suggestion for the future - I already did it for this one... I'd suggest editing your answer to not criticize their typos. I'm not doing it for you.) On another note, +1 for having a working answer :) – ArtOfWarfare Oct 18 '12 at 18:19
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I dont think this is right _as a general answer_ — at least not since Android started supporting vector drawables. – roberto tomás Mar 24 '16 at 12:52
after implementing the solution I'm getting this ... `... E/CommitToConfigurationOperation: Malformed snapshot token (size): ... E/NotificationService: Not posting notification with icon==0: Notification(pri=0 contentView=null vibrate=null sound=content://settings/system/notification_sound defaults=0x0 flags=0x10 color=0x00000000 vis=PRIVATE) ... E/NotificationService: WARNING: In a future release this will crash the app:...` – Bhuro Sep 26 '16 at 05:31

AndyW · Answer 2 · 2018-06-26T19:25:56.833

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Drawable myDrawable = getResources().getDrawable(R.drawable.logo);
Bitmap myLogo = ((BitmapDrawable) myDrawable).getBitmap();

Since API 22 getResources().getDrawable() is deprecated, so we can use following solution.

Drawable vectorDrawable = VectorDrawableCompat.create(getResources(), R.drawable.logo,  getContext().getTheme());
Bitmap myLogo = ((BitmapDrawable) vectorDrawable).getBitmap();

edited Jun 26 '18 at 19:25

answered Feb 12 '13 at 18:41

AndyW

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It tells me bitmapDrawable cannot be resolved to a type – Nov 26 '14 at 12:50
Hi @20Cents did you tried http://stackoverflow.com/questions/18218938/why-does-it-say-bitmap-cannot-be-resolved-to-a-type-in-this-case – AndyW Nov 26 '14 at 19:40
Just press ctrl+shift+O if you are receiving cannot be resolved to a type for bitmapDrawable. Cheers! – portfoliobuilder Mar 05 '15 at 00:38
Unfortunately this way crashes my app! – Fahad Alduraibi Feb 16 '16 at 21:55
getDrawable is deprecated – Junior Mayhé Jun 08 '17 at 01:24

score 13 · Answer 3 · answered Jan 03 '12 at 19:13

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Bitmap bitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.my_drawable);

Context can be your current Activity.

answered Jan 03 '12 at 19:13

aromero

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and for vector drawables? – roberto tomás Mar 24 '16 at 12:51

score 9 · Answer 4 · edited Oct 21 '14 at 09:54

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Here is another way to convert Drawable resource into Bitmap in android:

Drawable drawable = getResources().getDrawable(R.drawable.input);
Bitmap bitmap = ((BitmapDrawable)drawable).getBitmap();

edited Oct 21 '14 at 09:54

DroidDev

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answered Aug 25 '14 at 04:23

Ramkailash

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How is yours different from AndyW solution ? it is the same! – Fahad Alduraibi Feb 16 '16 at 21:54

score 7 · Answer 5 · answered Nov 26 '14 at 07:31

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First Create Bitmap Image

Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.image);

now set bitmap in Notification Builder Icon....

Notification.Builder.setLargeIcon(bmp);

answered Nov 26 '14 at 07:31

Ravi Makvana

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score 0 · Answer 6 · answered Mar 28 '17 at 11:58

In res/drawable folder,

1. Create a new Drawable Resources.

2. Input file name.

A new file will be created inside the res/drawable folder.

Replace this code inside the newly created file and replace ic_action_back with your drawable file name.

<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
    android:src="@drawable/ic_action_back"
    android:tint="@color/color_primary_text" />

Now, you can use it with Resource ID, R.id.filename.

score 0 · Answer 7 · answered May 05 '22 at 11:47

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If someone is looking for the Kotlin version for the large icon, you may use this

val largeIcon = BitmapFactory.decodeResource(context.resources, R.drawable.my_large_icon)

answered May 05 '22 at 11:47

Prateek

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converting drawable resource image into bitmap

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