I'm trying to do what is described here "I want to crop a circular region from this bitmap. All pixels outside the circle should be transparent."
I already trying what's in that post but all of them don't offer the transparent background, only a circle image, I tried the below and it didn't work, any ideas?
public Bitmap getCroppedCircleImage(Bitmap bmp, View view) {
Bitmap bitmap = getCroppedImage(bmp, view);
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff227722;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
//canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
canvas.drawCircle(bitmap.getWidth() / 2, bitmap.getHeight() / 2, bitmap.getWidth() / 2, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
Paint paint1 = new Paint();
paint1.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
Rect rectTransparent=new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
canvas.drawRect(rectTransparent,paint1);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC));
canvas.drawBitmap(bitmap, rect, rect, paint);
//Bitmap _bmp = Bitmap.createScaledBitmap(output, 60, 60, false);
//return _bmp;
OutputStream stream = null;
try {
stream = new FileOutputStream("/sdcard/test.png");
} catch (FileNotFoundException e) {
e.printStackTrace();
}
bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
try {
stream.close();
} catch (IOException e) {
e.printStackTrace();
}
return output;
}
You can use this library to achieve your goal
https://github.com/hdodenhof/CircleImageView
Related
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;
}
I am using Picasso to transform an image into a rounded square image.
It also has the border. But when I put this image to Imageview, it's edge is cut. Any solution for this? Android version is 4.4.2.
My Imageview looks like this.
<ImageView
android:id="#+id/imageview_picture"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="#dimen/edge_margin"
android:layout_marginRight="#dimen/edge_margin"
android:adjustViewBounds="true" />
Below is code.
#Override public Bitmap transform(Bitmap source) {
int ratio = source.getWidth() / mDisplayWidth;
float strokeWidth = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, Constants.SHAPE_STROKE_WIDTH, mDisplayMetrics) * ratio;
float radius = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, Constants.SQUARE_RADIUS, mDisplayMetrics) * ratio;
int x = (int) (mRectF.left * ratio);
int y = (int) (mRectF.top * ratio);
int width = (int) ((mRectF.right - mRectF.left) * ratio);
int height = (int) ((mRectF.bottom - mRectF.top) * ratio);
Bitmap bitmap = Bitmap.createBitmap(source, x, y, width, height);
source.recycle();
return getRoundedCornerBitmap(bitmap, radius, strokeWidth);
}
#Override public String key() {
return "card_square";
}
private Bitmap getRoundedCornerBitmap(Bitmap bitmap, int color, float cornerSizePx, float borderSizePx) {
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(),
Bitmap.Config.ARGB_8888);
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);
// prepare canvas for transfer
paint.setAntiAlias(true);
paint.setColor(0xFFFFFFFF);
paint.setStyle(Paint.Style.FILL);
canvas.drawARGB(0, 0, 0, 0);
canvas.drawRoundRect(rectF, cornerSizePx, cornerSizePx, paint);
// draw bitmap
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
bitmap.recycle();
// draw border
paint.setColor(color);
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth(borderSizePx);
canvas.drawRoundRect(rectF, cornerSizePx, cornerSizePx, paint);
return output;
}`
This is what I used in one of my previous project to transform an image into a rounded image:
public Bitmap getRoundedBitmap(Bitmap 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());
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawCircle(bitmap.getWidth() / 2, bitmap.getHeight() / 2,
bitmap.getWidth() / 2, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
return output;
}
i trying to do bitmap circle it work but high resolution image not work properly.It is working like small circle in image view.
i have tried this code and i tried many other code,but didn't work properly
public static Bitmap circleShape(Bitmap bitmap) {
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
bitmap.getHeight(), 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());
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
// canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
canvas.drawCircle(bitmap.getWidth() / 2, bitmap.getHeight() / 2,
bitmap.getWidth() / 2, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
//Bitmap _bmp = Bitmap.createScaledBitmap(output, 60, 60, false);
//return _bmp;
return output;
}
I have tried so many code and that was not working perfectly. I have searched and found this code. It work awesome, amazing.. hope anybody helpfull this code.. thanks
public static Bitmap circleShape(Bitmap source) {
int size = Math.min(source.getWidth(), source.getHeight());
int x = (source.getWidth() - size) / 2;
int y = (source.getHeight() - size) / 2;
Bitmap squaredBitmap = Bitmap.createBitmap(source, x, y, size, size);
if (squaredBitmap != source) {
source.recycle();
}
Bitmap bitmap = Bitmap.createBitmap(size, size, source.getConfig());
Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint();
BitmapShader shader = new BitmapShader(squaredBitmap,
BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP);
paint.setShader(shader);
paint.setAntiAlias(true);
float r = size / 2f;
canvas.drawCircle(r, r, r, paint);
squaredBitmap.recycle();
return bitmap;
}
I need help with cutting a rectangular drawable in a semi circular shape.
I tried using Path.addArc() but couldn't get the result required. I could only cut the image in a rectangle.
Path path = new Path();
path.addArc(rectF, 0, 180);
canvas.clipPath(path, Region.Op.DIFFERENCE);
canvas.drawBitmap(orig, rect, rect, circlePaint);
You need to use this method to get circular shape from a rectangle bitmap
public static Bitmap getCircularBitmap(Bitmap bitmap) {
Bitmap output;
if (bitmap.getWidth() > bitmap.getHeight()) {
output = Bitmap.createBitmap(bitmap.getHeight(), bitmap.getHeight(), Config.ARGB_8888);
} else {
output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getWidth(), 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());
float r = 0;
if (bitmap.getWidth() > bitmap.getHeight()) {
r = bitmap.getHeight() / 2;
} else {
r = bitmap.getWidth() / 2;
}
RadialGradient gradient = new RadialGradient(bitmap.getWidth() / 2, bitmap.getWidth() / 2, bitmap.getWidth() / 2,
new int[] {0xFFFFFFFF, 0xFFFFFFFF, 0x00FFFFFF},
new float[] {0.0f, 0.4f, 0.8f},
android.graphics.Shader.TileMode.CLAMP);
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
paint.setShader(gradient);
canvas.drawCircle(r, r, r, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
return output;
}
and then you can cut the circle into half like this
Bitmap semicircle=Bitmap.createBitmap(circlebitmap, 0, 0, circlebitmap.getWidth()/2 , circlebitmap.getHeight());
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;
}