How to draw a Bitmap or Image drawable in Android Canvas

In this android programming source code example, we are going to draw a Bitmap or Image drawable in Android Canvas.

You can copy and adopt this source code example to your android project without reinventing the wheel.

Below is a step by step source code to draw a Bitmap or Image drawable in Android Canvas.

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/relativeLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ImageView
        android:id="@+id/image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"/>

</RelativeLayout>

MainActivity.java

import androidx.appcompat.app.AppCompatActivity;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.os.Bundle;
import android.widget.ImageView;


public class CanvasActivity7 extends AppCompatActivity {
    private ImageView img;
    private int offset;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_canvas7);
        img = (ImageView) findViewById(R.id.image);
        offset = 50;
        Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.profilepic);
        Bitmap dstBitmap = Bitmap.createBitmap(bitmap.getWidth() + offset * 2, bitmap.getHeight() + offset * 2, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(dstBitmap);
        canvas.drawColor(Color.LTGRAY);
        canvas.drawBitmap(bitmap, offset, offset, null);
        img.setImageBitmap(dstBitmap);
    }
}

If you have any question or suggestions kindly use the comment box or you can contact us directly through our contact page below.

Add a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.

50% Discounts On Projects

Do you have a custom project with a clear requirements, we are currently giving a 50% discount on all projects.

We will work with you to ensure we deliver what you need.

If you have questions or want to chat with us, you can reach us on Skype (henry.tochi)

Languages and technologies we use - Java, Kotlin, Laravel, Vue, React, Flutter, Swift and more.