Crop an Image in ANDROID.

Cropping an image in ANDROID programmatically has always been a problem for ANDROID developers.
So Here I am putting a sample code to demonstrate this.
For cropping an image in ANDROID we need a source bitmap which is our image itself, the other one is the target bitmap which we have to
set the size as we want and a matrix.

Below code is a fully working code, just copy and paste this code to your new project.
The XML for the code is also provided below.

Make sure that you have an image named “image.png” in your resources.
Assuming the image to be of size 300×300 pixels.


package Move3.pack;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.drawable.BitmapDrawable;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.AbsoluteLayout;
import android.widget.FrameLayout;

@SuppressWarnings({ "deprecation", "unused" })
public class Move extends Activity {

	public FrameLayout board;
	public View part1;

	@Override
	public void onCreate(Bundle savedInstanceState)
	{
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		 board = new FrameLayout(this);
		 board = (FrameLayout)findViewById(R.id.Board);
		 part1 = new View(this);
		 part1 = findViewById(R.id.part1);
	    try{

	    	Paint paint = new Paint();
			paint.setFilterBitmap(true);
			Bitmap bitmapOrg = BitmapFactory.decodeResource(getResources(),R.drawable.image);

	        int targetWidth  = 300;
	        int targetHeight = 300;


	        Bitmap targetBitmap = Bitmap.createBitmap(targetWidth, targetHeight,Bitmap.Config.ARGB_8888);

	        RectF rectf = new RectF(0, 0, 100, 100);

	        Canvas canvas = new Canvas(targetBitmap);
	        Path path = new Path();

	        path.addRect(rectf, Path.Direction.CW);
	        canvas.clipPath(path);

	        canvas.drawBitmap( bitmapOrg, new Rect(0, 0, bitmapOrg.getWidth(), bitmapOrg.getHeight()),
	       		 			new Rect(0, 0, targetWidth, targetHeight), paint);



	        Matrix matrix = new Matrix();
	        matrix.postScale(1f, 1f);
	        Bitmap resizedBitmap = Bitmap.createBitmap(targetBitmap, 0, 0, 100, 100, matrix, true);

	        /*convert Bitmap to resource */
	        BitmapDrawable bd = new BitmapDrawable(resizedBitmap);

	        part1.setBackgroundDrawable(bd);

        }
    	catch(Exception e){
    		System.out.println("Error1 : " + e.getMessage() + e.toString());
      }

	}

main.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
	 xmlns:android="http://schemas.android.com/apk/res/android"
	 android:layout_width="fill_parent"
	 android:layout_height="fill_parent"
	 android:id="@+id/Board"
	 android:layout_gravity="top">

<View
		android:layout_height="100dp"
		android:layout_width="100dp"
		android:id="@+id/part1"

		>
</FrameLayout>

crop image in android Example

cropping image in android


If you got any errors please let me know.

9 thoughts on “Crop an Image in ANDROID.

  1. Pingback: Checking a camera or image for pixel size : Android Community - For Application Development

  2. austin

    i want to start the cropping from 200 down with a height of 100. returned bitmap is blank.
    i only modify RectF() to RectF(0 , 200 , bitmapOrg.width , 100).
    can somebody please help me out

    Reply

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