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 · 2014-01-31 19:38:31Z

430

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, 2014 at 19:38

answered Jan 3, 2012 at 19:14

poitroae

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3 Comments

ArtOfWarfare Over a year ago

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 :)

roberto tomás Over a year ago

I dont think this is right as a general answer — at least not since Android started supporting vector drawables.

Bhuro Over a year ago

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:...

AndyW · Accepted Answer · 2018-06-26 19:25:56Z

49

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, 2018 at 19:25

answered Feb 12, 2013 at 18:41

AndyW

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5 Comments

user2424370 Over a year ago

It tells me bitmapDrawable cannot be resolved to a type

AndyW Over a year ago

Hi @20Cents did you tried stackoverflow.com/questions/18218938/…

portfoliobuilder Over a year ago

Just press ctrl+shift+O if you are receiving cannot be resolved to a type for bitmapDrawable. Cheers!

Fahad Alduraibi Over a year ago

Unfortunately this way crashes my app!

Junior Mayhe Over a year ago

getDrawable is deprecated

aromero · Accepted Answer · 2012-01-03 19:13:32Z

14

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

Context can be your current Activity.

answered Jan 3, 2012 at 19:13

aromero

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1 Comment

roberto tomás Over a year ago

and for vector drawables?

DroidDev · Accepted Answer · 2014-10-21 09:54:34Z

9

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, 2014 at 9:54

DroidDev

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answered Aug 25, 2014 at 4:23

Ramkailash

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2 Comments

Fahad Alduraibi Over a year ago

How is yours different from AndyW solution ? it is the same!

dkoukoul Over a year ago

I tried this and it produces an error that it can not be cast:

java.lang.ClassCastException: android.graphics.drawable.VectorDrawable cannot be cast to android.graphics.drawable.BitmapDrawable

Ravi Makvana · Accepted Answer · 2014-11-26 07:31:03Z

8

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, 2014 at 7:31

Ravi Makvana

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Comments

Prateek · Accepted Answer · 2022-05-05 11:47:48Z

2

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 5, 2022 at 11:47

Prateek

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XxMr.TyronexX · Accepted Answer · 2023-08-09 05:18:30Z

1

Try the following:

Bitmap bm = BitmapFactory.decodeResource(getResources(), R.drawable.your_image_id);

answered Aug 9, 2023 at 5:18

XxMr.TyronexX

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Mohammedsalim Shivani · Accepted Answer · 2017-03-28 11:58:34Z

0

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.

answered Mar 28, 2017 at 11:58

Mohammedsalim Shivani

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