Get Bitmap attached to ImageView

Question

Given  ImageView image   R findViewById R id imageView   image setImageBitmap someBitmap     Is it possible to retrieve the bitmap

User · Answer

Write below code  ImageView yourImageView    ImageView  findViewById R id yourImageView   Bitmap bitmap     BitmapDrawable yourImageView getDrawable    getBitmap

User · Answer

This code is better   public static  byte   getByteArrayFromImageView ImageView imageView                BitmapDrawable bitmapDrawable     BitmapDrawable  imageView getDrawable             Bitmap bitmap          if bitmapDrawable  null               imageView buildDrawingCache                bitmap   imageView getDrawingCache                imageView buildDrawingCache false            else                       bitmap   bitmapDrawable  getBitmap                      ByteArrayOutputStream stream   new ByteArrayOutputStream            bitmap compress Bitmap CompressFormat JPEG  100  stream           return stream toByteArray

User · Answer

For those who are looking for Kotlin solution to get Bitmap from ImageView   var bitmap    image drawable as BitmapDrawable  bitmap

User · Answer

Bitmap bitmap     BitmapDrawable image getDrawable    getBitmap

User · Answer

Other way to get a bitmap of an image is doing this   Bitmap imagenAndroid   BitmapFactory decodeResource getResources   R drawable jellybean statue   imageView setImageBitmap imagenAndroid

User · Answer

try this code   Bitmap bitmap  bitmap     BitmapDrawable image getDrawable    getBitmap

User · Answer

This will get you a Bitmap from the ImageView  Though  it is not the same bitmap object that you ve set  It is a new one   imageView buildDrawingCache    Bitmap bitmap   imageView getDrawingCache          EDIT       imageView setDrawingCacheEnabled true    imageView measure MeasureSpec makeMeasureSpec 0  MeasureSpec UNSPECIFIED                       MeasureSpec makeMeasureSpec 0  MeasureSpec UNSPECIFIED     imageView layout 0  0                     imageView getMeasuredWidth    imageView getMeasuredHeight       imageView buildDrawingCache true    Bitmap bitmap   Bitmap createBitmap imageView getDrawingCache      imageView setDrawingCacheEnabled false

[android] Get Bitmap attached to ImageView

Examples related to android

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