android - How to convert a drawable to a bitmap

activity_main.xml 
 <RelativeLayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/rl"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:padding="10dp"     tools:context=".MainActivity"     android:background="#d7e2fb"     >     <Button         android:id="@+id/btn"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="Convert Drawable To Bitmap"         />     <ImageView         android:id="@+id/iv"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_below="@id/btn"         /> </RelativeLayout>
MainActivity.java 
 package com.cfsuman.me.androidcodesnippets;  import android.app.ActionBar; import android.graphics.Color; import android.graphics.drawable.ColorDrawable; import android.os.Bundle; import android.app.Activity; import android.view.View; import android.widget.Button; import android.widget.ImageView; import android.widget.RelativeLayout; import android.widget.Toast; import android.graphics.Bitmap; import android.graphics.BitmapFactory;   public class MainActivity extends Activity {      protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);          // Get the widgets reference from XML layout         selesai RelativeLayout rl = (RelativeLayout) findViewById(R.id.rl);         selesai Button btn = (Button) findViewById(R.id.btn);         selesai ImageView iv = (ImageView) findViewById(R.id.iv);          selesai ActionBar ab = getActionBar();         ab.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#FFE290EB")));          btn.setOnClickListener(new View.OnClickListener() {             @Override             public void onClick(View v) {                 /*                     Drawable                         A Drawable is a general abstraction for "something that can be drawn."                         Most often you will deal with Drawable as the type of resource retrieved                         for drawing things to the screen; the Drawable class provides a generic                         API for dealing with an underlying visual resource that may take a variety                         of forms. Unlike a View, a Drawable does not have any facility                         to receive events or otherwise interact with the user.                 */                  /*                     BitmapFactory                         Creates Bitmap objects from various sources, including                         files, streams, and byte-arrays.                 */                  /*                     public static Bitmap decodeResource (Resources res, int id)                         Synonym for decodeResource(Resources, int,                         android.graphics.BitmapFactory.Options) with null Options.                          Parameters                             res : The resources object containing the image data                             id : The resource id of the image data                         Returns                             The decoded bitmap, or null if the image could not be decoded.                 */                  /*                     Resources                         Class for accessing an application's resources.                         The Android resource system keeps track of all non-code assets associated                         with an application. You can use this class to access your application's                         resources. You can generally acquire the Resources instance                         associated with your application with getResources().                 */                  /*                     public abstract Resources getResources ()                         Return a Resources instance for your application's package.                 */                  // Create bitmap from drawable                 Bitmap bitmap = BitmapFactory.decodeResource(getResources(),R.drawable.panda);                  // Set the ImageView image from a bitmap                 iv.setImageBitmap(bitmap);                 // Notify the user that drawable converted to bitmap                 Toast.makeText(getApplicationContext(), "Bitmap created.",Toast.LENGTH_SHORT).show();             }         });     } }

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