Develop Reference

Android draw circle around Circular Bitmap

Hello I have this code to create a circular bitmap, but I also want to draw a circle around this circular bitmap.
I mean like the circular bitmap inside and a tiny colored stroke around the circular bitmap.
I have tryed different solutions but the circle doesn't get draw normally.
The bitmap will be used as a marker in a MapView instance.
Here is my code (this was a test code to try to draw a black circle under the circular bitmap)
public static Bitmap convertToCircularBitmap(Bitmap bitmap) {
final Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(output);
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
final RectF rectF = new RectF(rect);
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
canvas.drawOval(rectF, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
final Paint p = new Paint();
final Rect r = new Rect(0, 0, bitmap.getWidth() + 10, bitmap.getHeight() + 10);
final RectF rF = new RectF(rect);
p.setColor(Color.BLACK);
canvas.drawOval(rF, p);
bitmap.recycle();
return output;
}
Thank you!

You can use bellow codes:
public static Bitmap convertToCircularBitmap(Bitmap bitmap, int strokeSize) {
int size = bitmap.getWidth() / 2;
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap
.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color =0xff424242;
final Paint paint = new Paint();
paint.setAntiAlias(true);
paint.setColor(color);
canvas.drawCircle(size,size,size-strokeSize,paint);
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
final int strokeColor = Color.rgb(0, 0, 0);
final Paint strokePaint = new Paint();
strokePaint.setAntiAlias(true);
strokePaint.setColor(strokeColor);
strokePaint.setStrokeWidth(strokeSize);
strokePaint.setStyle(Paint.Style.STROKE);
canvas.drawCircle(size,size,size-strokeSize,strokePaint);
return output;
}

How to convert a bitmap to a RoundRect bitmap?

I'm trying to convert Bitmap to RoundRect shape. And i'm confused to use
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.saveLayer();
It's ok if I drawRoundRect first.
public Bitmap transform(Bitmap bitmap) {
Drawable drawable = new BitmapDrawable(Resources.getSystem(), bitmap);
Bitmap destBitmap = Bitmap.createBitmap(bitmap.getWidth(),
bitmap.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(destBitmap);
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
RectF srcRect = new RectF(0, 0, bitmap.getWidth(), bitmap.getHeight());
canvas.drawRoundRect(srcRect, mRadiusX, mRadiusY, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.saveLayer(srcRect, paint, Canvas.ALL_SAVE_FLAG);
drawable.setBounds(0, 0, bitmap.getWidth(), bitmap.getHeight());
drawable.draw(canvas);
canvas.restore();
return destBitmap;
}
But, it dosen't work if I draw bitmap first. Why?
public Bitmap transform(Bitmap bitmap) {
Drawable drawable = new BitmapDrawable(Resources.getSystem(), bitmap);
Bitmap destBitmap = Bitmap.createBitmap(bitmap.getWidth(),
bitmap.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(destBitmap);
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
RectF srcRect = new RectF(0, 0, bitmap.getWidth(), bitmap.getHeight());
drawable.setBounds(0, 0, bitmap.getWidth(), bitmap.getHeight());
drawable.draw(canvas);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
canvas.saveLayer(srcRect, paint, Canvas.ALL_SAVE_FLAG);
canvas.drawRoundRect(srcRect, mRadiusX, mRadiusY, paint);
canvas.restore();
return destBitmap;
}
Also, I don't want to create a new Bitmap, can I drawRoundRect on the bitmap directly to convert roundRect shape? like this:
public Bitmap transform(Bitmap bitmap) {
Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint();
paint.setStyle(Paint.Style.FILL_AND_STROKE);
Path path = new Path();
path.addRoundRect(0, 0, bitmap.getWidth(), bitmap.getHeight(),50, 50,
Path.Direction.CW);
canvas.clipPath(path);
return bitmap;
}
Doesn't work.
I have some questions:
Do I have to "saveLayer" and "restore" if I use "PorterDuffXfermode"?
Do I have to create a new Bitmap, and draw on it ? can I draw the src Bitmap which is mutable?

How to get particular cropping image using canvas circular image?

I am create a custom ImageView with Pinch IN-OUT zoom and circular crop image.The Pinch in-out is wroking fine but when i trying to cropping image, can't get the particulr circle image. I'm using Pinch in-out working based on onTuchListener and Circular Cropping based on canvas class.
I have used below mentioned code for Pinch in-out and Circle Crop image:
#Override
protected void onDraw(Canvas canvas) {
onDrawReady = true;
imageRenderedAtLeastOnce = true;
if (delayedZoomVariables != null) {
setZoom(delayedZoomVariables.scale, delayedZoomVariables.focusX, delayedZoomVariables.focusY, delayedZoomVariables.scaleType);
delayedZoomVariables = null;
}
super.onDraw(canvas);
if (bitmap == null) {
circleWindowFrame(); //Creating circle view
}
canvas.drawBitmap(bitmap, 0, 0, null);
}
protected void circleWindowFrame() {
bitmap = Bitmap.createBitmap(getWidth(), getHeight(), Bitmap.Config.ARGB_8888);
Canvas osCanvas = new Canvas(bitmap);
RectF outerRectangle = new RectF(0, 0, bitmap.getWidth(), bitmap.getHeight());
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setColor(getResources().getColor(R.color.overlay));
paint.setAlpha(99);
osCanvas.drawRect(outerRectangle, paint);
paint.setColor(Color.TRANSPARENT);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_OUT));
float centerX = getWidth() / 2;
float centerY = getHeight() / 2;
DisplayMetrics metrics = context.getResources().getDisplayMetrics();
int width = metrics.widthPixels;
float radius = width / 2;
osCanvas.drawCircle(centerX, centerY, radius, paint);
}
This code for Cropping:
public static Bitmap getCrop() {
Bitmap circleBitmap;
circleBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
BitmapShader shader = new BitmapShader(bitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
Paint paint = new Paint();
paint.setShader(shader);
paint.setAntiAlias(true);
Canvas c = new Canvas(circleBitmap);
c.drawCircle(bitmap.getWidth() / 2, bitmap.getHeight() / 2, bitmap.getWidth() / 2, paint);
return bitmap;
}
Thanks for Advance...

try this
public static Bitmap toOvalBitmap(#NonNull Bitmap bitmap) {
int width = bitmap.getWidth();
int height = bitmap.getHeight();
Bitmap output = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(output);
int color = 0xff424242;
Paint paint = new Paint();
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
RectF rect = new RectF(0, 0, width, height);
canvas.drawOval(rect, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, 0, 0, paint);
bitmap.recycle();
return output;
}

Android draw an image inside another image

how to use Canvas to draw an image inside another image;
like this, look at the picture :
to put it in a map app v2 like this
marker = gmap.addMarker(new MarkerOptions().title("test")
.position(new LatLng(0, 0))
.snippet("snipet test")
.icon(BitmapDescriptorFactory.fromBitmap(bitmap))
I already draw a picture in a rectangle like this
InputStream inputStream = connection.getInputStream();
Bitmap bitmap = BitmapFactory.decodeStream(inputStream);//Convert to bitmap
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
bitmap.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
final RectF rectF = new RectF(rect);
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawOval(rectF, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
how to do this
please help me

Set a clipping path for your canvas with the shape of the frame you want:
Path frame = new Path();
frame.addCircle(centerX, centerY, radius, Direction.CW);
canvas.getClipBounds(oldClipBounds); //see below
canvas.clipPath(frame);
Everything you draw into the canvas afterwards will not be visible if it's outside of the circle.
If you need additional drawing, which should take place only outside of this frame, you can protect it later on by:
canvas.clipRect(oldClipBounds, Region.Op.REVERSE_DIFFERENCE);

I found a solution for this problem:
you put the image in a circle with canvas after that you resize the result with the exact size, and put it inside the marker image.
public class IconMarker {
public IconMarker(){}
public Bitmap DrawMarker(String userid,int typeid,Resources rcs){
// image from database: ...InputStream inputStream = connection.getInputStream();
//Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
Bitmap img1=new UserInfoBd().getPhotoProfil(userid);
if(img1==null) img1=BitmapFactory.decodeResource(rcs,R.drawable.espace_photo);
Bitmap.Config conf = Bitmap.Config.ARGB_8888;
Bitmap bmp = BitmapFactory.decodeResource(rcs,
typeid);
Bitmap output = Bitmap.createBitmap(bmp.getWidth(),
bmp.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas1 = new Canvas(output);
canvas1.drawBitmap(bmp, 0,0, null);
Bitmap output1 = Bitmap.createBitmap(img1.getWidth(),
img1.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(output1);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, img1.getWidth(), img1.getHeight());
final RectF rectF = new RectF(rect);
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawOval(rectF, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(img1, rect, rect, paint);
Bitmap img=getResizedBitmap(output1,bmp.getHeight()*3/4-4,bmp.getWidth()*3/4);
canvas1.drawBitmap(img,(float)4.7,(float)3.5,null);
return output;
}
public Bitmap getResizedBitmap(Bitmap bm, int newHeight, int newWidth) {
int width = bm.getWidth();
int height = bm.getHeight();
float scaleWidth = ((float) newWidth) / width;
float scaleHeight = ((float) newHeight) / height;
// CREATE A MATRIX FOR THE MANIPULATION
Matrix matrix = new Matrix();
// RESIZE THE BIT MAP
matrix.postScale(scaleWidth, scaleHeight);
// RECREATE THE NEW BITMAP
Bitmap resizedBitmap = Bitmap.createBitmap(bm, 0, 0, width, height, matrix, false);
return resizedBitmap;
}
}

How to make an image fit into a circular frame in android

I have a ListView in which there is an ImageView, the image in the ImageView gets loaded dynamically after its fetched from the server.
Now, I want these images, of any size, to fit into a circular frame, how to do that?
Here's a sample pic of what I want

With the help of previous answer I came up with this solution.Hope it help others:
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PorterDuff.Mode;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;
import android.os.Bundle;
import android.widget.ImageView;
public class CircleImage extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.circle_layout);
ImageView img1 = (ImageView) findViewById(R.id.imageView1);
Bitmap bm = BitmapFactory.decodeResource(getResources(),
R.drawable.hair_four);
Bitmap resized = Bitmap.createScaledBitmap(bm, 100, 100, true);
Bitmap conv_bm = getRoundedRectBitmap(resized, 100);
img1.setImageBitmap(conv_bm);
// TODO Auto-generated method stub
}
public static Bitmap getRoundedRectBitmap(Bitmap bitmap, int pixels) {
Bitmap result = null;
try {
result = Bitmap.createBitmap(200, 200, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(result);
int color = 0xff424242;
Paint paint = new Paint();
Rect rect = new Rect(0, 0, 200, 200);
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawCircle(50, 50, 50, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
} catch (NullPointerException e) {
} catch (OutOfMemoryError o) {
}
return result;
}
}

Try this code:
public static Bitmap getRoundedRectBitmap(Bitmap bitmap, int pixels) {
try {
result = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(),
Bitmap.Config.ARGB_8888);
canvas = new Canvas(result);
color = 0xff424242;
paint = new Paint();
rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
rectF = new RectF(rect);
roundPx = pixels;
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
} catch (NullPointerException e) {
// return bitmap;
} catch (OutOfMemoryError o){}
return result;
}
If you want an actual circle then you can pass 100px as parameter.

Update
There is a CircleImageView available on Github.
You can get latest version from Maven repository as add as a gradle dependency.

There are lots of tutorial regarding this. I think it will help.
https://github.com/lopspower/CircularImageView
https://github.com/wisemandesigns/CircularImageView
https://coderwall.com/p/hmzf4w

We can manage the height and width of an image from xml code and draw circle/oval from java code like
<ImageView
android:id="#+id/imageView1"
android:layout_width="#dimen/width"
android:layout_height="#dimen/height"
/>
for oval view
ImageView img1 = (ImageView) findViewById(R.id.imageView1);
Bitmap bm = BitmapFactory.decodeResource(getResources(),
R.drawable.user_image);
Bitmap conv_bm = getRoundedBitmap(bm);
img1.setImageBitmap(conv_bm);
public static Bitmap getRoundedBitmap(Bitmap bitmap)
{
final Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(output);
final int color = Color.RED;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
final RectF rectF = new RectF(rect);
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawOval(rectF, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
bitmap.recycle();
return output;
}
}

Add following dependancies
implementation 'jp.wasabeef:picasso-transformations:2.2.1'
implementation 'de.hdodenhof:circleimageview:3.0.0'
CircularImageView available for image fit in circle also if image is not looking proper .resize is for image resizing in circular image view.
CircleImageView img;
String Imageid;
Imageid="ImageName"; //String is not compulsary it may be drawable
Picasso.with(mContext)
.load(Imageid.get(position)) //Load the image
.error(R.drawable.ic_launcher_background) //Image resource for error
.resize(20, 20) // Post processing - Resizing the image
.into(img); // View where image is loaded.

public static Bitmap getCircleBitmap(Bitmap bitmap) {
final Bitmap circuleBitmap = Bitmap.createBitmap(bitmap.getWidth(),
bitmap.getWidth(), Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(circuleBitmap);
final int color = Color.RED;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getWidth());
final RectF rectF = new RectF(rect);
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawOval(rectF, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
bitmap.recycle();
return circuleBitmap;
}