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.jaredrummler.android.colorpicker.ColorPanelView.java

@Override
protected void onDraw(Canvas canvas) {
    borderPaint.setColor(borderColor);/*w w w.  j  a v a 2s. com*/
    colorPaint.setColor(color);
    if (shape == ColorShape.SQUARE) {
        if (borderWidthPx > 0) {
            canvas.drawRect(drawingRect, borderPaint);
        }
        if (alphaPattern != null) {
            alphaPattern.draw(canvas);
        }
        canvas.drawRect(colorRect, colorPaint);
    } else if (shape == ColorShape.CIRCLE) {
        final int outerRadius = getMeasuredWidth() / 2;
        if (borderWidthPx > 0) {
            canvas.drawCircle(getMeasuredWidth() / 2, getMeasuredHeight() / 2, outerRadius, borderPaint);
        }
        if (Color.alpha(color) < 255) {
            canvas.drawCircle(getMeasuredWidth() / 2, getMeasuredHeight() / 2, outerRadius - borderWidthPx,
                    alphaPaint);
        }
        if (showOldColor) {
            canvas.drawArc(centerRect, 90, 180, true, originalPaint);
            canvas.drawArc(centerRect, 270, 180, true, colorPaint);
        } else {
            canvas.drawCircle(getMeasuredWidth() / 2, getMeasuredHeight() / 2, outerRadius - borderWidthPx,
                    colorPaint);
        }
    }
}

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From source file:com.metinkale.prayerapp.vakit.PrefsView.java

@Override
public void draw(Canvas canvas) {
    super.draw(canvas);
    canvas.scale(0.8f, 0.8f, canvas.getWidth() / 2, canvas.getHeight() / 2);
    Object o = getValue();/*from w  ww  .ja va2s  .c o m*/
    boolean active = ((o instanceof Boolean) && o.equals(true)) || ((o instanceof Integer) && !o.equals(0))
            || ((o instanceof String) && !((String) o).startsWith("silent"));
    if (mPref == Pref.Vibration2) {
        active = !o.equals(-1);
    }
    mPaint.setColor(active ? 0xff03A9F4 : 0xffe0e0e0);
    int w = getHeight();
    canvas.drawCircle(w / 2, w / 2, w / 2, mPaint);

    int p = w / 7;
    mDrawable.setBounds(p, p, w - p, w - p);
    mDrawable.setColorFilter(active ? sCFActive : sCFInactive);
    mDrawable.draw(canvas);

    if ((mPref == Pref.Time) || (mPref == Pref.SabahTime) || (mPref == Pref.Silenter)) {
        int s = (Integer) getValue();

        if (s != 0) {
            mPaint.setColor(getResources().getColor(R.color.colorPrimaryDark));
            canvas.drawCircle(getWidth() * 0.78f, getHeight() * 0.78f, getWidth() / 4, mPaint);
            mPaint.setColor(Color.WHITE);
            mPaint.setTextAlign(Align.CENTER);
            mPaint.setTextSize(w / 5);
            mPaint.setTypeface(Typeface.DEFAULT_BOLD);
            canvas.drawText(s + "", w * 0.78f, w * 0.87f, mPaint);
        }
    } else if (mPref == Pref.Vibration2)

    {
        int s = (Integer) getValue();
        String txt = "";
        if (s == 0) {
            txt = "8";
        } else if (s == 1) {
            txt = "1";
        }
        mPaint.setColor(Color.BLACK);
        mPaint.setTextAlign(Align.CENTER);
        mPaint.setTextSize(w / 2);
        mPaint.setTypeface(Typeface.DEFAULT_BOLD);
        if (s == 0) {
            canvas.rotate(90, canvas.getWidth() / 2, canvas.getHeight() / 2);
            canvas.drawText(txt, w / 2, (w * 2) / 3, mPaint);
            canvas.rotate(-90, canvas.getWidth() / 2, canvas.getHeight() / 2);
        } else {
            canvas.drawText(txt, w / 2, w * 2 / 3, mPaint);
        }
    }
}

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From source file:com.jakewharton.android.viewpagerindicator.CirclePageIndicator.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    final int count = mViewPager.getAdapter().getCount();
    final float threeRadius = mRadius * 3;
    final float topOffset = getPaddingTop() + mRadius;
    final int paddingLeft = getPaddingLeft();
    float leftOffset = paddingLeft + mRadius;
    if (mCentered) {
        leftOffset += ((getWidth() - paddingLeft - getPaddingRight()) / 2.0f) - ((count * threeRadius) / 2.0f);
    }/* www  . ja  v a  2  s.c  o m*/

    //Draw stroked circles
    for (int iLoop = 0; iLoop < count; iLoop++) {
        canvas.drawCircle(leftOffset + (iLoop * threeRadius), topOffset, mRadius, mPaintStroke);
    }

    //Draw the filled circle according to the current scroll
    float cx = (mSnap ? mSnapPage : mCurrentPage) * threeRadius;
    if (!mSnap && (mPageWidth != 0)) {
        cx += (mCurrentOffset * 1.0f / mPageWidth) * threeRadius;
    }
    canvas.drawCircle(leftOffset + cx, topOffset, mRadius, mPaintFill);
}

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From source file:com.yanzhenjie.durban.view.OverlayView.java

/**
 * This method draws dimmed area around the crop bounds.
 *
 * @param canvas - valid canvas object/* ww w . ja v a  2 s.  c  o m*/
 */
protected void drawDimmedLayer(@NonNull Canvas canvas) {
    canvas.save();
    if (mCircleDimmedLayer)
        canvas.clipPath(mCircularPath, Region.Op.DIFFERENCE);
    else
        canvas.clipRect(mCropViewRect, Region.Op.DIFFERENCE);
    canvas.drawColor(mDimmedColor);
    canvas.restore();

    if (mCircleDimmedLayer) { // Draw 1px stroke to fix antialias
        canvas.drawCircle(mCropViewRect.centerX(), mCropViewRect.centerY(),
                Math.min(mCropViewRect.width(), mCropViewRect.height()) / 2.f, mDimmedStrokePaint);
    }
}

---

From source file:com.github.segoh.viewpagerindicator.ViewPagerIndicator.java

@Override
protected void onDraw(final Canvas canvas) {
    super.onDraw(canvas);
    if (mViewPager == null || mViewPager.getAdapter() == null) {
        return;// www  . j a v a  2 s .  co  m
    }
    final int count = mViewPager.getAdapter().getCount();
    if (count == 0) {
        return;
    }
    if (mCurrentPage >= count) {
        setCurrentItem(count - 1);
        return;
    }

    // Draw circles for each page
    final float widthCircleWithSpacing = mRadius * 4;
    final float offsetFromTop = getMeasuredHeight() / 2f;
    final float offsetFromLeft = getPaddingLeft() + mRadius;
    for (int i = 0; i < count; ++i) {
        final float centerLeft = offsetFromLeft + (i * widthCircleWithSpacing);
        canvas.drawCircle(centerLeft, offsetFromTop, mRadius, mPaintPage);
    }

    // Draw circle for current page
    final float offsetForCircle = mCurrentPage * widthCircleWithSpacing;
    canvas.drawCircle(offsetFromLeft + offsetForCircle, offsetFromTop, mRadius, mPaintCurrentPage);
}

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From source file:de.telekom.pde.codelibrary.ui.layout.PDESwipeRefreshLayout.java

private void drawTrigger(Canvas canvas, int cx, int cy) {
    float innerRadius;
    float outerRadius;
    Path circlePath;//  www .  j a  v  a2  s.  com

    if (mTriggerPercentage < 0.05f)
        return;

    innerRadius = 0.7f * PDEBuildingUnits.BU();
    outerRadius = 0.9f * PDEBuildingUnits.BU();

    canvas.drawCircle(cx, cy, PDEBuildingUnits.BU(), mPaint);

    circlePath = new Path();

    circlePath.moveTo(cx, cy - innerRadius);
    circlePath.lineTo(cx, cy - outerRadius);

    circlePath.arcTo(new RectF(cx - outerRadius, cy - outerRadius, cx + outerRadius, cy + outerRadius), -90.0f,
            mTriggerPercentage * 360.0f);

    circlePath.lineTo((float) (cx + Math.sin(degreesToRadians(mTriggerPercentage * 360.0f)) * innerRadius),
            (float) (cy - Math.cos(degreesToRadians(mTriggerPercentage * 360.0f)) * innerRadius));

    circlePath.arcTo(new RectF(cx - innerRadius, cy - innerRadius, cx + innerRadius, cy + innerRadius),
            -90.0f + mTriggerPercentage * 360.0f, -mTriggerPercentage * 360.0f);

    canvas.drawPath(circlePath, mWhitePaint);

}

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From source file:com.kmagic.solitaire.DrawMaster.java

/**
 * Draw a club/*ww  w . j a  v a  2 s . c  om*/
 * @param canvas canvas to draw on
 * @param width width of the club
 * @param height height of the club
 */
public void drawClub(final Canvas canvas, final float width, final float height) {
    final Paint paint = getBlackPaint();
    final float width_half = width / 2;
    final float width_fifth = width / 5;
    final float height_5th = height / 5;
    canvas.drawCircle(width_half, height_5th, width_fifth, paint);
    canvas.drawCircle(width_fifth, height / 2, width_fifth, paint);
    canvas.drawCircle(width - width_fifth, height / 2, width_fifth, paint);
    drawPedestal(canvas, width, height);
}

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From source file:com.taobao.weex.ui.view.WXBaseCircleIndicator.java

@Override
protected void onDraw(Canvas canvas) {
    // TODO Auto-generated method stub
    super.onDraw(canvas);

    float firstX = getWidth() / 2 + getPaddingLeft() - getCount() / 2.0f * (radius + circlePadding);// + radius;
    float firstY = getHeight() / 2 + getPaddingTop();// + radius;

    //draw stroked circles
    for (int i = 0; i < getCount(); i++) {
        float dx = firstX + circlePadding * i + radius * 2 * i;
        float dy = firstY;
        if (mPaintStroke.getStrokeWidth() > 0) {
            canvas.drawCircle(dx, dy, radius, mPaintStroke);
        }//from  ww  w  .  j  a va  2  s  .  c o  m

        if (mPaintPage.getAlpha() > 0) {
            canvas.drawCircle(dx, dy, radius, mPaintPage);
        }
    }

    //Draw the filled circle
    float dx = firstX + realCurrentItem * circlePadding + radius * 2 * realCurrentItem;
    float dy = firstY;
    canvas.drawCircle(dx, dy, radius, mPaintFill);
}

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From source file:com.byagowi.persiancalendar.view.QiblaCompassView.java

public void drawTrueNorthArrow(Canvas canvas, float drawnAngle) {
    trueNorthArrowPaint.reset();//from  ww  w . j  a  va2s . c o  m
    trueNorthArrowPaint.setColor(Color.RED);
    trueNorthArrowPaint.setStyle(Paint.Style.FILL);
    trueNorthArrowPaint.setAlpha(100);
    int r = Radius / 12;
    // Construct a wedge-shaped path
    mPath.reset();
    mPath.moveTo(px, py - px);
    mPath.lineTo(px - r, py);
    mPath.lineTo(px, py + r);
    mPath.lineTo(px + r, py);
    mPath.addCircle(px, py, r, Path.Direction.CCW);
    mPath.close();
    canvas.drawPath(mPath, trueNorthArrowPaint);
    dashedPaint.setColor(Color.RED);
    canvas.drawLine(px, py - px, px, py + Radius, dashedPaint);
    canvas.drawCircle(px, py, 5, dashedPaint);
    canvas.restore();
}

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From source file:com.concavenp.artistrymuse.fragments.BaseFragment.java

private BitmapImageViewTarget createBitmapImageViewTarget(final ImageView imageView) {

    return new BitmapImageViewTarget(imageView) {
        @Override/*  w  w w.j  ava 2s .c  om*/
        protected void setResource(Bitmap bitmap) {

            int bitmapWidth = bitmap.getWidth();
            int bitmapHeight = bitmap.getHeight();
            int borderWidthHalf = 5;
            int bitmapSquareWidth = Math.min(bitmapWidth, bitmapHeight);
            int newBitmapSquare = bitmapSquareWidth + borderWidthHalf;

            Bitmap roundedBitmap = Bitmap.createBitmap(newBitmapSquare, newBitmapSquare,
                    Bitmap.Config.ARGB_8888);

            // Initialize a new Canvas to draw empty bitmap
            Canvas canvas = new Canvas(roundedBitmap);

            // Calculation to draw bitmap at the circular bitmap center position
            int x = borderWidthHalf + bitmapSquareWidth - bitmapWidth;
            int y = borderWidthHalf + bitmapSquareWidth - bitmapHeight;

            canvas.drawBitmap(bitmap, x, y, null);

            // Initializing a new Paint instance to draw circular border
            Paint borderPaint = new Paint();
            borderPaint.setStyle(Paint.Style.STROKE);
            borderPaint.setStrokeWidth(borderWidthHalf * 2);
            borderPaint.setColor(ResourcesCompat.getColor(getResources(), R.color.myApp_accent_700, null));

            canvas.drawCircle(canvas.getWidth() / 2, canvas.getWidth() / 2, newBitmapSquare / 2, borderPaint);

            RoundedBitmapDrawable circularBitmapDrawable = RoundedBitmapDrawableFactory.create(getResources(),
                    roundedBitmap);
            circularBitmapDrawable.setCircular(true);
            imageView.setImageDrawable(circularBitmapDrawable);

        }
    };
}

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