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());
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 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;
}
I am drawing a hexagonal path in android app. Now I want to place an image in the drawn path. Below is the code I am using to draw the path.
combPath = getHexPath(cellWidth / 2f, cellWidth / 2f, (float) (cellWidth * Math.sqrt(3) / 4));
fillPaint.setColor(cellSet[c][r] ? Color.RED : Color.WHITE);
canvas.drawPath(combPath, fillPaint);
Method getHexPath()
private Path getHexPath(float size, float centerX, float centerY) {
Path path = new Path();
for (int j = 0; j <= 6; j++) {
double angle = j * Math.PI / 3;
float x = (float) (centerX + size * Math.cos(angle));
float y = (float) (centerY + size * Math.sin(angle));
if (j == 0) {
path.moveTo(x, y);
} else {
path.lineTo(x, y);
}
}
return path;
}
Now I have to place an image in the hexagonal path using "path()" variable. How can I achieve it?
TIA
Try to use something like this:
Bitmap bitmap = getBitmap(); // retrieve bitmap that you want to draw somehow
Paint paint = new Paint();
paint.setAntiAlias(true);
combPath = getHexPath(cellWidth / 2f, cellWidth / 2f, (float) (cellWidth * Math.sqrt(3) / 4));
canvas.drawPath(combPath, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, 0, 0, paint);
UPDATED
Here is an example function of how you can do that
private Bitmap getCroppedBitmap(Bitmap original) {
Bitmap output = Bitmap.createBitmap(original.getWidth(),
original.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, original.getWidth(), original.getHeight());
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
Path path = new Path();
path.moveTo(30, 20);
path.lineTo(120, 30);
path.lineTo(110, 120);
path.lineTo(20, 110);
path.lineTo(30, 20);
// canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
canvas.drawPath(path, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(original, rect, rect, paint);
return output;
}
You just need to place your bitmap, play with width/height and also insert your path. This code worked for me.
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;
}