Example usage for android.graphics Canvas drawCircle

Introduction

In this page you can find the example usage for android.graphics Canvas drawCircle.

Prototype

public void drawCircle(float cx, float cy, float radius, @NonNull Paint paint) 

Source Link

Document

Draw the specified circle using the specified paint.

Usage

From source file:Main.java

/**
 * convert Bitmap to round corner/*from   w w  w.  ja v a  2 s .  com*/
 *
 * @param bitmap
 * @return
 */
public static Bitmap toRoundCorner(Bitmap bitmap) {
    int height = bitmap.getHeight();
    int width = bitmap.getHeight();
    Bitmap output = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);

    Canvas canvas = new Canvas(output);

    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, width, height);

    paint.setAntiAlias(true);
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(0xff424242);
    //paint.setColor(Color.TRANSPARENT);
    canvas.drawCircle(width / 2, height / 2, width / 2, paint);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(bitmap, rect, rect, paint);
    return output;
}

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From source file:Main.java

public static Bitmap getCircularBitmapImage(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();//ww w  .  j  a v  a 2 s  . co  m
    }
    Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
    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;
}

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From source file:com.nextgis.maplibui.util.NotificationHelper.java

public static Bitmap getLargeIcon(int iconResourceId, Resources resources) {
    Bitmap icon = BitmapFactory.decodeResource(resources, iconResourceId);

    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP)
        return icon;

    int iconSize = ControlHelper.dpToPx(40, resources);
    int innerIconSize = ControlHelper.dpToPx(24, resources);
    icon = Bitmap.createScaledBitmap(icon, iconSize, iconSize, false);
    Bitmap largeIcon = icon.copy(Bitmap.Config.ARGB_8888, true);
    icon = Bitmap.createScaledBitmap(icon, innerIconSize, innerIconSize, false);

    Canvas canvas = new Canvas(largeIcon);
    int center = canvas.getHeight() / 2;
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setColor(resources.getColor(R.color.accent));
    canvas.drawCircle(center, center, center, paint);
    paint.setColor(Color.WHITE);/*from ww  w. j  a va  2  s.c o  m*/
    canvas.drawBitmap(icon, center - icon.getWidth() / 2, center - icon.getWidth() / 2, paint);

    return largeIcon;
}

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From source file:Main.java

public static Bitmap createCircleBitmap(Bitmap bitmap) {
    if (bitmap == null) {
        return null;
    }//  w  w w  . j av a 2 s.  c o  m

    int bmWidth = bitmap.getWidth();
    int bmHeight = bitmap.getHeight();
    int side = bmWidth < bmHeight ? bmWidth : bmHeight;
    int x = (bmWidth - side) / 2;
    int y = (bmHeight - side) / 2;
    Bitmap newBm = Bitmap.createBitmap(side, side, Bitmap.Config.ARGB_8888);
    if (newBm != null) {
        Canvas canvas = new Canvas(newBm);
        Paint paint = new Paint();
        paint.setAntiAlias(true);
        paint.setFilterBitmap(true);
        paint.setDither(true);

        Rect rect = new Rect(0, 0, newBm.getWidth(), newBm.getHeight());
        canvas.drawARGB(0, 0, 0, 0);
        canvas.drawCircle(newBm.getWidth() / 2, newBm.getHeight() / 2, newBm.getHeight() / 2, paint);
        paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
        canvas.drawBitmap(bitmap, rect, rect, paint);

        return newBm;
    }
    return null;
}

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From source file:Main.java

public static Bitmap getRoundedCornerBitmap3(Drawable imageDrawable, int radius) {

    Bitmap d = ((BitmapDrawable) imageDrawable).getBitmap();
    BitmapShader shader = new BitmapShader(d, TileMode.CLAMP, TileMode.CLAMP);

    int size = Math.min(d.getWidth(), d.getHeight());
    Bitmap output = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    RectF outerRect = new RectF(0, 0, size, size);
    //      float cornerRadius = radius;

    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setShader(shader);/*from  w ww . java2  s . c o m*/
    paint.setAntiAlias(true);
    paint.setColor(Color.RED);
    canvas.drawCircle(outerRect.centerX(), outerRect.centerY(), d.getWidth() / 2, paint);

    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    imageDrawable.setBounds(0, 0, size, size);

    Canvas canvas1 = new Canvas(output);

    RectF outerRect1 = new RectF(0, 0, size, size);

    Paint paint1 = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint1.setShader(shader);
    paint1.setAntiAlias(true);
    paint1.setColor(Color.RED);
    canvas1.drawCircle(outerRect1.centerX(), outerRect1.centerY(), d.getWidth() / 2, paint);

    paint1.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));

    return output;
}

---

From source file:Main.java

public static Bitmap circleCrop(Bitmap bitmap) {
    int size = Math.min(bitmap.getWidth(), bitmap.getHeight());

    Bitmap output = Bitmap.createBitmap(size, size, Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    final int color = 0xff424242;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, size, size);

    paint.setAntiAlias(true);//from  w w w.ja  v  a  2  s  . c o  m
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    // canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
    canvas.drawCircle(size / 2, size / 2, size / 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;
}

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From source file:Main.java

public static Bitmap getCroppedRoundBitmap(Bitmap bmp, int radius) {
    Bitmap scaledSrcBmp;//from www. j av a  2s.  com
    int diameter = radius * 2;
    int bmpWidth = bmp.getWidth();
    int bmpHeight = bmp.getHeight();
    int squareWidth = 0, squareHeight = 0;
    int x = 0, y = 0;
    Bitmap squareBitmap;
    if (bmpHeight > bmpWidth) {
        squareWidth = squareHeight = bmpWidth;
        x = 0;
        y = (bmpHeight - bmpWidth) / 2;
        squareBitmap = Bitmap.createBitmap(bmp, x, y, squareWidth, squareHeight);
    } else if (bmpHeight < bmpWidth) {
        squareWidth = squareHeight = bmpHeight;
        x = (bmpWidth - bmpHeight) / 2;
        y = 0;
        squareBitmap = Bitmap.createBitmap(bmp, x, y, squareWidth, squareHeight);
    } else {
        squareBitmap = bmp;
    }

    if (squareBitmap.getWidth() != diameter || squareBitmap.getHeight() != diameter) {
        scaledSrcBmp = Bitmap.createScaledBitmap(squareBitmap, diameter, diameter, true);

    } else {
        scaledSrcBmp = squareBitmap;
    }
    Bitmap output = Bitmap.createBitmap(scaledSrcBmp.getWidth(), scaledSrcBmp.getHeight(), Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    Paint paint = new Paint();
    Rect rect = new Rect(0, 0, scaledSrcBmp.getWidth(), scaledSrcBmp.getHeight());

    paint.setAntiAlias(true);
    paint.setFilterBitmap(true);
    paint.setDither(true);
    canvas.drawARGB(0, 0, 0, 0);
    canvas.drawCircle(scaledSrcBmp.getWidth() / 2, scaledSrcBmp.getHeight() / 2, scaledSrcBmp.getWidth() / 2,
            paint);
    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
    canvas.drawBitmap(scaledSrcBmp, rect, rect, paint);
    return output;
}

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From source file:Main.java

/**
 * Draw points in the Image/*from   w  w w  .  j  a va  2  s .  co  m*/
 * @param canvas
 * @param points array
 * @param width
 * @param height
 * @param frontCamera
 */
static public void drawPoints(Canvas canvas, Paint paint, PointF[] points, int width, int height,
        boolean frontCamera) {

    if (canvas == null)
        return;
    //      paint.setStyle(Style.STROKE);

    for (PointF point : points) {
        PointF p = point;
        if (frontCamera) {
            p.x = width - p.x;
        }
        canvas.drawCircle(p.x, p.y, 2, paint);

        //         canvas.drawPoint(p.x, p.y, paint);
    }
}

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From source file:Main.java

public static Bitmap getCroppedBitmap(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);/*  ww w . j a  v a  2 s.co m*/
    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);
    // return _bmp;
    return output;

}

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From source file:com.irccloud.android.data.model.Avatar.java

public static Bitmap generateBitmap(String text, int textColor, int bgColor, boolean isDarkTheme, int size,
        boolean round) {
    Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
    if (bitmap != null) {
        Canvas c = new Canvas(bitmap);
        Paint p = new Paint(Paint.ANTI_ALIAS_FLAG);
        p.setStyle(Paint.Style.FILL);

        if (isDarkTheme || !round) {
            p.setColor(bgColor);//from   www.j  ava 2 s .  c om
            if (round)
                c.drawCircle(size / 2, size / 2, size / 2, p);
            else
                c.drawColor(bgColor);
        } else {
            float[] hsv = new float[3];
            Color.colorToHSV(bgColor, hsv);
            hsv[2] *= 0.8f;
            p.setColor(Color.HSVToColor(hsv));
            c.drawCircle(size / 2, size / 2, (size / 2) - 2, p);
            p.setColor(bgColor);
            c.drawCircle(size / 2, (size / 2) - 2, (size / 2) - 2, p);
        }
        TextPaint tp = new TextPaint(Paint.ANTI_ALIAS_FLAG);
        tp.setTextAlign(Paint.Align.CENTER);
        tp.setTypeface(font);
        tp.setTextSize((int) (size * 0.65));
        tp.setColor(textColor);
        if (isDarkTheme || !round) {
            c.drawText(text, size / 2, (size / 2) - ((tp.descent() + tp.ascent()) / 2), tp);
        } else {
            c.drawText(text, size / 2, (size / 2) - 4 - ((tp.descent() + tp.ascent()) / 2), tp);
        }

        return bitmap;
    } else {
        return null;
    }
}

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