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

public static Bitmap getScaledCircleCroppedBitmap(Bitmap bitmap, int destSize) {
    if (bitmap == null)
        return null;
    Bitmap output = Bitmap.createBitmap(destSize, destSize, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    final int srcSize = Math.min(bitmap.getWidth(), bitmap.getHeight());
    final int srcX = (bitmap.getWidth() - srcSize) / 2;
    final int srcY = (bitmap.getHeight() - srcSize) / 2;
    final Rect srcRect = new Rect(srcX, srcY, srcX + srcSize, srcY + srcSize);
    final Rect destRect = new Rect(0, 0, destSize, destSize);
    final int color = 0xff424242;
    final Paint paint = new Paint();

    paint.setAntiAlias(true);/*from  ww  w .  ja  v  a  2  s  .  c o m*/
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawCircle(destSize / 2, destSize / 2, destSize / 2, paint);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(bitmap, srcRect, destRect, paint);
    return output;
}

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From source file:Main.java

public static Bitmap getRoundedCornerBitmap(Bitmap bitmap, int backgroundColor, int borderColor) {
    Bitmap output = Bitmap.createBitmap(bitmap.getWidth() + 12, bitmap.getHeight() + 12,
            Bitmap.Config.ARGB_8888);//from   ww  w .  ja va 2s .com

    Canvas canvas = new Canvas(output);
    //canvas.drawARGB(Color.alpha(backgroundColor), Color.red(backgroundColor), Color.green(backgroundColor), Color.blue(backgroundColor));

    Paint borderPaint = new Paint();
    borderPaint.setAntiAlias(true);
    borderPaint.setColor(borderColor);
    borderPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_OVER));
    borderPaint.setShadowLayer(2.0f, 0.0f, 2.0f, Color.BLACK);

    int centerWidth = output.getWidth() / 2;
    int centerHeight = output.getHeight() / 2;
    canvas.drawCircle(centerWidth, centerHeight, ((centerWidth + centerHeight) / 2) - 4, borderPaint);

    Paint paint = new Paint();
    paint.setAntiAlias(true);

    Rect rectS = new Rect(0, 0, output.getWidth() - 12, output.getHeight() - 12);
    Rect rectD = new Rect(0, 0, output.getWidth(), output.getHeight());

    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_ATOP));
    canvas.drawBitmap(bitmap, rectS, rectD, paint);

    return output;
}

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From source file:Main.java

public static Bitmap getRoundedRectBitmap(Bitmap bitmap) {
    Bitmap result = null;/*from w  ww .  ja  v  a2s  .c  o  m*/
    Canvas canvas;
    Paint paint;
    try {
        final int width = bitmap.getWidth();
        final int height = bitmap.getHeight();
        result = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        canvas = new Canvas(result);
        int color = 0xff424242;
        float radius = width > height ? width / 2 : height / 2;
        paint = new Paint();
        Rect rect = new Rect(0, 0, width, height);
        paint.setAntiAlias(true);
        canvas.drawARGB(0, 0, 0, 0);
        paint.setColor(color);
        canvas.drawCircle(width / 2, height / 2, radius, paint);
        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
        canvas.drawBitmap(bitmap, rect, rect, paint);
    } catch (NullPointerException | OutOfMemoryError e) {
        e.printStackTrace();
    }
    return result;
}

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From source file:org.telegram.ui.ActionBar.Theme.java

public static Drawable createBarSelectorDrawable(int color, boolean masked) {
    Drawable drawable;/* w  w w  .j av  a2 s  .  c  om*/
    if (Build.VERSION.SDK_INT >= 21) {
        Drawable maskDrawable = null;
        if (masked) {
            maskPaint.setColor(0xffffffff);
            maskDrawable = new Drawable() {
                @Override
                public void draw(Canvas canvas) {
                    android.graphics.Rect bounds = getBounds();
                    canvas.drawCircle(bounds.centerX(), bounds.centerY(), AndroidUtilities.dp(18), maskPaint);
                }

                @Override
                public void setAlpha(int alpha) {

                }

                @Override
                public void setColorFilter(ColorFilter colorFilter) {

                }

                @Override
                public int getOpacity() {
                    return PixelFormat.UNKNOWN;
                }
            };
        }
        ColorStateList colorStateList = new ColorStateList(new int[][] { new int[] {} }, new int[] { color });
        return new RippleDrawable(colorStateList, null, maskDrawable);
    } else {
        StateListDrawable stateListDrawable = new StateListDrawable();
        stateListDrawable.addState(new int[] { android.R.attr.state_pressed }, new ColorDrawable(color));
        stateListDrawable.addState(new int[] { android.R.attr.state_focused }, new ColorDrawable(color));
        stateListDrawable.addState(new int[] { android.R.attr.state_selected }, new ColorDrawable(color));
        stateListDrawable.addState(new int[] { android.R.attr.state_activated }, new ColorDrawable(color));
        stateListDrawable.addState(new int[] {}, new ColorDrawable(0x00000000));
        return stateListDrawable;
    }
}

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From source file:com.arisprung.tailgate.utilities.FacebookImageLoader.java

public static Bitmap getRoundedCornerBitmap(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);/*www .  j a  va  2  s  .c  o  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);
    int dens = mContext.getResources().getDisplayMetrics().densityDpi;
    Bitmap _bmp = Bitmap.createScaledBitmap(output, dens / 2, dens / 2, false);
    // return _bmp;
    Bitmap bit = TailGateUtility.drawWhiteFrame(_bmp);
    return bit;
}

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From source file:com.silentcircle.common.util.ViewUtil.java

/**
 * Cut a circular image from provided bitmap.
 *
 * @param bitmap Bitmap from which to cut the circle.
 *
 *///from w w  w  .  j  a  v a2s.  co  m
public static Bitmap getCircularBitmap(final Bitmap bitmap) {
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    int dimens = width;
    if (width > height) {
        dimens = height;
    }
    Bitmap output = Bitmap.createBitmap(dimens, dimens, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    final float radius = width / 2.0f;
    final int color = 0xffff00ff;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, width, height);

    canvas.drawARGB(0, 0, 0, 0);
    paint.setAntiAlias(true);
    paint.setColor(color);
    canvas.drawCircle(radius, radius, radius, paint);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(bitmap, rect, rect, paint);

    return output;
}

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From source file:de.mrapp.android.util.BitmapUtil.java

/**
 * Clips the corners of a bitmap in order to transform it into a round shape. Additionally, the
 * bitmap is resized to a specific size. Bitmaps, whose width and height are not equal, will be
 * clipped to a square beforehand./*from  w  w w .  j a  v a2  s  .  co  m*/
 *
 * @param bitmap
 *         The bitmap, which should be clipped, as an instance of the class {@link Bitmap}. The
 *         bitmap may not be null
 * @param size
 *         The size, the bitmap should be resized to, as an {@link Integer} value in pixels. The
 *         size must be at least 1
 * @return The clipped bitmap as an instance of the class {@link Bitmap}
 */
public static Bitmap clipCircle(@NonNull final Bitmap bitmap, final int size) {
    Bitmap squareBitmap = clipSquare(bitmap, size);
    int squareSize = squareBitmap.getWidth();
    float radius = (float) squareSize / 2.0f;
    Bitmap clippedBitmap = Bitmap.createBitmap(squareSize, squareSize, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(clippedBitmap);
    Paint paint = new Paint();
    paint.setAntiAlias(true);
    paint.setColor(Color.BLACK);
    canvas.drawCircle(radius, radius, radius, paint);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(squareBitmap, new Rect(0, 0, squareSize, squareSize),
            new Rect(0, 0, squareSize, squareSize), paint);
    return clippedBitmap;
}

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From source file:com.github.amlcurran.showcaseview.StandardShowcaseDrawer.java

@Override
public void drawShowcase(Bitmap buffer, float x, float y, float scaleMultiplier) {
    Canvas bufferCanvas = new Canvas(buffer);
    bufferCanvas.drawCircle(x, y, showcaseRadius, eraserPaint);
    int halfW = getShowcaseWidth() / 2;
    int halfH = getShowcaseHeight() / 2;
    int left = (int) (x - halfW);
    int top = (int) (y - halfH);
    showcaseDrawable.setBounds(left, top, left + getShowcaseWidth(), top + getShowcaseHeight());
    showcaseDrawable.draw(bufferCanvas);
}

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From source file:com.androidzeitgeist.webcards.overlay.HandleView.java

@Override
protected void onDraw(Canvas canvas) {
    canvas.drawCircle(centerX, centerY, centerX, paint);

    canvas.drawBitmap(currentBitmap, centerX - currentBitmap.getWidth() / 2,
            centerY - currentBitmap.getHeight() / 2, paint);
}

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From source file:com.androidmapsextensions.DefaultClusterOptionsProvider.java

private void drawCircle(Canvas canvas, int count, float iconSize) {
    canvas.drawCircle(iconSize / 2, iconSize / 2, iconSize / 2 - blurRadius, circleShadowPaint);
    for (int i = colors.length - 1; i >= 0; i--) {
        if (count >= Math.pow(10, i)) {
            circlePaint.setColor(colors[i]);
            break;
        }/*w  w w .j  a v a2  s .  c  om*/
    }
    canvas.drawCircle(iconSize / 2, iconSize / 2, iconSize / 2 - blurRadius, circlePaint);
}

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