How to set a bitmap from resource

Question

This seems simple  I am trying to set a bitmap image but from the resources  I have within the application in the drawable folder   bm   BitmapFactory decodeResource null  R id image     Is this correct

User · Accepted Answer

Assuming you are calling this in an Activity class

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

The first parameter, Resources, is required. It is normally obtainable in any Context (and subclasses like Activity).

User · Answer

If you have declare a bitmap object and you want to display it or store this bitmap object  but first you have to assign any image   and you may use the button click event  this code will only demonstrate that how to store the drawable image in bitmap Object   Bitmap contact pic   BitmapFactory decodeResource                             v getContext   getResources                               R drawable android logo                           Now you can use this bitmap object  whether you want to store it  or to use it in google maps while drawing a pic on fixed latitude and longitude  or to use some where else

User · Answer

Using this function you can get Image Bitmap  Just pass image url   public Bitmap getBitmapFromURL String strURL          try           URL url   new URL strURL           HttpURLConnection connection    HttpURLConnection  url openConnection            connection setDoInput true           connection connect            InputStream input   connection getInputStream            Bitmap myBitmap   BitmapFactory decodeStream input           return myBitmap          catch  IOException e            e printStackTrace            return null

User · Answer

Try this   This is from sdcard  ImageView image    ImageView  findViewById R id test image   Bitmap bMap   BitmapFactory decodeFile   sdcard test2 png    image setImageBitmap bMap     This is from resources  Bitmap bMap   BitmapFactory decodeResource getResources    R drawable icon

User · Answer

just replace this line   bm   BitmapFactory decodeResource null  R id image     with  Bitmap bitmap   BitmapFactory decodeResource getResources    R drawable YourImageName     I mean to say just change null value with getResources   If you use this code in any button or Image view click event just append getApplicationContext   before getResources

User · Answer

If the resource is showing and is a view  you can also capture it  Like a screenshot   View rootView     View  findViewById R id yourView   getRootView    rootView setDrawingCacheEnabled true   rootView layout 0  0  rootView getWidth    rootView getHeight     rootView buildDrawingCache     Bitmap bm   Bitmap createBitmap rootView getDrawingCache      rootView setDrawingCacheEnabled false     This actually grabs the whole layout but you can alter as you wish

[android] How to set a bitmap from resource

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