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:com.microsoft.mimickeralarm.onboarding.BubblePagerIndicator.java

@Override
protected void onDraw(Canvas canvas) {
    int width = canvas.getWidth();
    int height = canvas.getHeight();
    if (mTotalPositions == 0) {
        return;/*from www.j a va 2  s .c  o  m*/
    }
    mPaint.setAlpha(122);
    float buckets = (float) width / mTotalPositions;
    float radius = Math.min(buckets / 2f, height / 2f);
    for (int i = 0; i < mTotalPositions; i++) {
        canvas.drawCircle(i * buckets + buckets / 2f, height / 2f, radius, mPaint);
    }
    mPaint.setAlpha(255);
    canvas.drawCircle(mPosition * buckets + buckets / 2f, height / 2f, radius, mPaint);
}

From source file:com.hirebuddy.util.CircleImageView.java

@Override
protected void onDraw(Canvas canvas) {
    if (mBitmap == null) {
        return;//  w  ww .  ja v a2 s .c  om
    }

    if (mFillColor != Color.TRANSPARENT) {
        canvas.drawCircle(getWidth() / 2.0f, getHeight() / 2.0f, mDrawableRadius, mFillPaint);
    }
    canvas.drawCircle(getWidth() / 2.0f, getHeight() / 2.0f, mDrawableRadius, mBitmapPaint);
    if (mBorderWidth != 0) {
        canvas.drawCircle(getWidth() / 2.0f, getHeight() / 2.0f, mBorderRadius, mBorderPaint);
    }
}

From source file:com.reddyetwo.hashmypass.app.view.ViewPagerIndicator.java

@Override
protected void onDraw(Canvas canvas) {
    float y = mHeightOffset + mRadius;
    for (int i = 0; i < mNumberOfItems; i++) {
        float x = mWidthOffset + i * mSpacing + (1 + RADIUS_TO_DIAMETER_RATIO * i) * mRadius;
        int alpha = i == mPosition ? mCurrentPositionAlpha : mAlpha;
        mPaint.setAlpha(alpha);/*from   w  ww  . j  a  v a 2 s.  c o m*/
        canvas.drawCircle(x, y, mRadius, mPaint);
    }
}

From source file:com.lovejjfg.arsenal.ui.widget.JumpBall.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (!isEnd) {
        drawCirclePath(canvas);/*from   w  ww  . j a  v  a 2 s  .co m*/
    } else {
        canvas.drawCircle(mWidth / 2, mHeight / 2 + mTranslateValue, mCurrentRadio, mPaint);
    }
}

From source file:net.simno.dmach.ui.view.SettingView.java

@Override
protected void onDraw(Canvas canvas) {
    canvas.drawColor(backgroundColor);/*from   w w w.  j  a  va  2  s .  c  o  m*/
    if (!TextUtils.isEmpty(hText)) {
        canvas.drawText(hText, originX, originY, textPaint);
    }
    if (!TextUtils.isEmpty(vText)) {
        canvas.drawTextOnPath(vText, path, hOffset, vOffset, textPaint);
    }
    canvas.drawCircle(x, y, circleRadius, shapePaint);
}

From source file:org.y20k.transistor.helpers.ImageHelper.java

public Bitmap createCircularFramedImage(int size) {

    // create empty bitmap and canvas
    Bitmap outputImage = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
    Canvas imageCanvas = new Canvas(outputImage);

    // construct circular background
    mBackgroundColor.setStyle(Paint.Style.FILL);
    float cx = size / 2;
    float cy = size / 2;
    float radius = size / 2;

    // draw circular background
    imageCanvas.drawCircle(cx, cy, radius, mBackgroundColor);

    // get size of original image
    float inputImageHeight = (float) mInputImage.getHeight();
    float inputImageWidth = (float) mInputImage.getWidth();

    // calculate padding
    float padding = (float) size / 4;

    // define variables needed for transformation matrix
    Matrix transformationMatrix = new Matrix();
    float aspectRatio = 0.0f;
    float xTranslation = 0.0f;
    float yTranslation = 0.0f;

    // landscape format and square
    if (inputImageWidth >= inputImageHeight) {
        aspectRatio = (size - padding * 2) / inputImageWidth;
        xTranslation = 0.0f + padding;/*  w  w  w  .  j a v  a 2  s  . com*/
        yTranslation = (size - inputImageHeight * aspectRatio) / 2.0f;
    }
    // portrait format
    else if (inputImageHeight > inputImageWidth) {
        aspectRatio = (size - padding * 2) / inputImageHeight;
        yTranslation = 0.0f + padding;
        xTranslation = (size - inputImageWidth * aspectRatio) / 2.0f;
    }

    // construct transformation matrix
    transformationMatrix.postTranslate(xTranslation, yTranslation);
    transformationMatrix.preScale(aspectRatio, aspectRatio);

    // draw input image onto canvas using transformation matrix
    Paint paint = new Paint();
    paint.setFilterBitmap(true);
    imageCanvas.drawBitmap(mInputImage, transformationMatrix, paint);

    return outputImage;
}

From source file:com.dlazaro66.wheelindicatorview.WheelIndicatorView.java

private void draw(WheelIndicatorItem indicatorItem, RectF surfaceRectF, float angle, Canvas canvas) {
    itemArcPaint.setColor(indicatorItem.getColor());
    itemEndPointsPaint.setColor(indicatorItem.getColor());
    // Draw arc//from  w  w w .  j a v  a2s. c om
    canvas.drawArc(surfaceRectF, ANGLE_INIT_OFFSET, angle, false, itemArcPaint);
    // Draw top circle
    canvas.drawCircle(minDistViewSize / 2, 0 + itemsLineWidth, itemsLineWidth, itemEndPointsPaint);
    int topPosition = minDistViewSize / 2 - itemsLineWidth;
    // Draw end circle
    canvas.drawCircle(
            (float) (Math.cos(Math.toRadians(angle + ANGLE_INIT_OFFSET)) * topPosition + topPosition
                    + itemsLineWidth),
            (float) (Math.sin(Math.toRadians((angle + ANGLE_INIT_OFFSET))) * topPosition + topPosition
                    + itemsLineWidth),
            itemsLineWidth, itemEndPointsPaint);
}

From source file:br.com.leoleal.swipetorefresh.SwipeProgressBar.java

/**
 * Draws a circle centered in the view.//w  w w  . j  av  a  2s.  c o  m
 *
 * @param canvas the canvas to draw on
 * @param cx the center x coordinate
 * @param cy the center y coordinate
 * @param color the color to draw
 * @param pct the percentage of the view that the circle should cover
 */
private void drawCircle(Canvas canvas, float cx, float cy, int color, float pct) {
    mPaint.setColor(color);
    canvas.save();
    canvas.translate(cx, cy);
    float radiusScale = INTERPOLATOR.getInterpolation(pct);
    canvas.scale(radiusScale, radiusScale);
    canvas.drawCircle(0, 0, cx, mPaint);
    canvas.restore();
}

From source file:com.bamobile.fdtks.util.Tools.java

public static Bitmap getRoundedCornerBitmap(Bitmap bitmap) {
    Bitmap output;/*from  w  ww. j  a va 2s. co m*/

    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;
    }

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

    return output;

}

From source file:com.dragon.lib.IndicatorView.java

private void drawCircle(Canvas canvas, float startX, float startY, float radius) {
    canvas.drawCircle(startX + radius, startY, radius, mIndicatorPaint);
}