Example usage for android.graphics Canvas drawRect

Introduction

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

Prototype

public void drawRect(@NonNull Rect r, @NonNull Paint paint) 

Source Link

Document

Draw the specified Rect using the specified Paint.

Usage

From source file:Main.java

public static Bitmap getColorPreviewBitmap(final Context context, final int color, final boolean border) {
    if (context == null)
        return null;
    final float density = context.getResources().getDisplayMetrics().density;
    final int width = (int) (32 * density), height = (int) (32 * density);

    final Bitmap bm = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    final Canvas canvas = new Canvas(bm);

    final int rectrangleSize = (int) (density * 5);
    final int numRectanglesHorizontal = (int) Math.ceil(width / rectrangleSize);
    final int numRectanglesVertical = (int) Math.ceil(height / rectrangleSize);
    final Rect r = new Rect();
    boolean verticalStartWhite = true;
    for (int i = 0; i <= numRectanglesVertical; i++) {

        boolean isWhite = verticalStartWhite;
        for (int j = 0; j <= numRectanglesHorizontal; j++) {

            r.top = i * rectrangleSize;//from w w  w .  j  a v  a 2 s.  com
            r.left = j * rectrangleSize;
            r.bottom = r.top + rectrangleSize;
            r.right = r.left + rectrangleSize;
            final Paint paint = new Paint();
            paint.setColor(isWhite ? Color.WHITE : Color.GRAY);

            canvas.drawRect(r, paint);

            isWhite = !isWhite;
        }

        verticalStartWhite = !verticalStartWhite;

    }
    canvas.drawColor(color);
    if (border) {
        final Paint paint = new Paint();
        paint.setColor(Color.WHITE);
        paint.setStrokeWidth(1f * density);
        final float[] points = new float[] { 0, 0, width, 0, 0, 0, 0, height, width, 0, width, height, 0,
                height, width, height };
        canvas.drawLines(points, paint);
    }
    return bm;
}

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From source file:Main.java

public static Bitmap createRoundedBottomBitmap(Context context, int width, int height, int color) {

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

    //color = 0x80424242;  // FIXME

    final Paint paint = new Paint();
    final int roundPxInt = convertDipsToPixels(context, ROUND_DIPS);

    final Rect rect = new Rect(0, 0, width, height - roundPxInt);
    final RectF rectF = new RectF(rect);
    final Rect rectRound = new Rect(roundPxInt, height - roundPxInt, width - roundPxInt, height);
    final RectF rectFRound = new RectF(rectRound);

    paint.setAntiAlias(true);//  w w w .ja va 2s  . c  o  m
    paint.setColor(color);

    canvas.drawARGB(0, 0, 0, 0);

    // Corners
    Rect oval = new Rect(0, height - 2 * roundPxInt, 2 * roundPxInt, height);
    RectF ovalF = new RectF(oval);
    canvas.drawArc(ovalF, 90.0f, 90.0f, true, paint);

    oval = new Rect(width - 2 * roundPxInt, height - 2 * roundPxInt, width, height);
    ovalF = new RectF(oval);
    canvas.drawArc(ovalF, 0.0f, 90.0f, true, paint);

    // Big and small rectangles
    canvas.drawRect(rectF, paint);
    canvas.drawRect(rectFRound, paint);

    return output;
}

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From source file:com.facebook.litho.TouchExpansionDelegate.java

void draw(Canvas canvas, Paint paint) {
    for (int i = mDelegates.size() - 1; i >= 0; i--) {
        canvas.drawRect(mDelegates.valueAt(i).mDelegateBounds, paint);
    }//from  w w w.j av  a2s.com
}

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From source file:com.wytiger.common.widget.SlideSwitch.java

@Override
protected void onDraw(Canvas canvas) {
    if (mShape == SHAPE_RECT) {
        paint.setColor(Color.GRAY);
        canvas.drawRect(backRect, paint);
        paint.setColor(color_theme);//from www. j  a v  a 2  s .com
        paint.setAlpha(alpha);
        canvas.drawRect(backRect, paint);
        frontRect.set(frontRect_left, RIM_SIZE, frontRect_left + getMeasuredWidth() / 2 - RIM_SIZE,
                getMeasuredHeight() - RIM_SIZE);
        paint.setColor(Color.WHITE);
        canvas.drawRect(frontRect, paint);
    } else {
        // draw circle
        int radius;
        radius = backRect.height() / 2 - RIM_SIZE;
        paint.setColor(Color.GRAY);
        backCircleRect.set(backRect);
        canvas.drawRoundRect(backCircleRect, radius, radius, paint);
        paint.setColor(color_theme);
        paint.setAlpha(alpha);
        canvas.drawRoundRect(backCircleRect, radius, radius, paint);
        frontRect.set(frontRect_left, RIM_SIZE, frontRect_left + backRect.height() - 2 * RIM_SIZE,
                backRect.height() - RIM_SIZE);
        frontCircleRect.set(frontRect);
        paint.setColor(Color.WHITE);
        canvas.drawRoundRect(frontCircleRect, radius, radius, paint);
    }
}

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From source file:com.askjeffreyliu.camera2barcode.CameraActivity.java

@Subscribe //(threadMode = ThreadMode.MAIN)
public void onMessageEvent(MultiResultEvent event) {
    if (event != null && event.results != null && event.results.length > 0) {
        mGraphicOverlay.clear();//w  ww .j  a  v  a 2  s  . c  om
        handler.removeCallbacks(runnable);

        for (int i = 0; i < event.results.length; i++) {
            final Result r = event.results[i];
            ArrayList<Point> pointArrayList = new ArrayList<>();
            for (int j = 0; j < r.getResultPoints().length; j++) {
                float x, y;
                try {
                    x = r.getResultPoints()[j].getX();
                    y = r.getResultPoints()[j].getY();
                } catch (NullPointerException e) {
                    return;
                }

                final float scaledX = x / event.width * mGraphicOverlay.getWidth();
                final float scaledY = y / event.height * mGraphicOverlay.getHeight();
                pointArrayList.add(new Point((int) scaledX, (int) scaledY));
            }
            final Rect rect = Utils.createRect(pointArrayList, r.getBarcodeFormat() == BarcodeFormat.QR_CODE);

            mGraphicOverlay.add(new GraphicOverlay.Graphic(mGraphicOverlay) {
                @Override
                public void draw(Canvas canvas) {
                    canvas.drawRect(rect, paint);
                    canvas.drawText(r.getText(), rect.left, rect.bottom, textPaint);
                }
            });

            CameraActivity.this.runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    getPageSetOverlay(false);
                }
            });
            handler.postDelayed(runnable, 100);
        }
    }
}

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From source file:arun.com.chromer.browsing.article.view.ElasticDragDismissFrameLayout.java

@Override
public void dispatchDraw(Canvas canvas) {
    super.dispatchDraw(canvas);

    if (draggingBackground != null) {
        canvas.drawRect(draggingBackground, draggingBackgroundPaint);
    }// w  ww  .j  a  v a 2 s  . c  o  m
}

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From source file:com.xcyo.live.view.SlideSwitch.java

@Override
protected void onDraw(Canvas canvas) {
    if (shape == SHAPE_RECT) {
        paint.setColor(Color.GRAY);
        canvas.drawRect(backRect, paint);
        paint.setColor(color_theme);/*from   w ww.j  av  a  2 s.  c o m*/
        paint.setAlpha(alpha);
        canvas.drawRect(backRect, paint);
        frontRect.set(frontRect_left, RIM_SIZE, frontRect_left + getMeasuredWidth() / 2 - RIM_SIZE,
                getMeasuredHeight() - RIM_SIZE);
        paint.setColor(Color.WHITE);
        canvas.drawRect(frontRect, paint);
    } else {
        // draw circle
        int radius;
        radius = backRect.height() / 2;
        paint.setColor(Color.GRAY);
        backCircleRect.set(backRect);
        canvas.drawRoundRect(backCircleRect, radius, radius, paint);
        paint.setColor(color_theme);
        paint.setAlpha(alpha);
        canvas.drawRoundRect(backCircleRect, radius, radius, paint);
        frontRect.set(frontRect_left, RIM_SIZE, frontRect_left + backRect.height() - 2 * RIM_SIZE,
                backRect.height() - RIM_SIZE);
        frontCircleRect.set(frontRect);
        paint.setColor(Color.WHITE);
        canvas.drawRoundRect(frontCircleRect, radius, radius, paint);
    }
}

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From source file:com.example.administrator.iclub21.view.SlideSwitch.java

@Override
protected void onDraw(Canvas canvas) {
    if (shape == SHAPE_RECT) {
        paint.setColor(Color.GRAY);
        canvas.drawRect(backRect, paint);
        paint.setColor(color_theme);//ww  w.ja va  2s .  c o m
        paint.setAlpha(alpha);
        canvas.drawRect(backRect, paint);
        frontRect.set(frontRect_left, RIM_SIZE, frontRect_left + getMeasuredWidth() / 2 - RIM_SIZE,
                getMeasuredHeight() - RIM_SIZE);
        paint.setColor(Color.WHITE);
        canvas.drawRect(frontRect, paint);
    } else {
        // draw circle
        int radius;
        radius = backRect.height() / 2 - RIM_SIZE;
        paint.setColor(Color.GRAY);
        backCircleRect.set(backRect);
        canvas.drawRoundRect(backCircleRect, radius, radius, paint);
        paint.setColor(color_theme);
        paint.setAlpha(alpha);
        canvas.drawRoundRect(backCircleRect, radius, radius, paint);
        frontRect.set(frontRect_left, RIM_SIZE, frontRect_left + backRect.height() - 2 * RIM_SIZE,
                backRect.height() - RIM_SIZE);
        frontCircleRect.set(frontRect);
        paint.setColor(Color.WHITE);
        canvas.drawRoundRect(frontCircleRect, radius, radius, paint);
    }
}

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From source file:com.tcl.widget.demo.ui.widget.supercleaner.SlideSwitch.java

@Override
protected void onDraw(Canvas canvas) {
    if (shape == SHAPE_RECT) {
        paint.setColor(Color.GRAY);
        canvas.drawRect(backRect, paint);
        paint.setColor(color_theme);/*from   w  w w . ja  va  2 s .  com*/
        paint.setAlpha(alpha);
        canvas.drawRect(backRect, paint);
        frontRect.set(frontRect_left, RIM_SIZE, frontRect_left + getMeasuredWidth() / 2 - RIM_SIZE,
                getMeasuredHeight() - RIM_SIZE);
        paint.setColor(Color.WHITE);
        canvas.drawRect(frontRect, paint);
    } else {
        // draw circle
        int radius;
        radius = backRect.height() / 2 - RIM_SIZE;
        paint.setColor(Color.GRAY);
        backCircleRect.set(backRect);
        canvas.drawRoundRect(backCircleRect, radius, radius, paint);

        paint.setColor(color_theme);
        paint.setAlpha(alpha);
        canvas.drawRoundRect(backCircleRect, radius, radius, paint);

        frontRect.set(frontRect_left, RIM_SIZE, frontRect_left + backRect.height() - 2 * RIM_SIZE,
                backRect.height() - RIM_SIZE);
        frontCircleRect.set(frontRect);
        paint.setColor(Color.WHITE);
        canvas.drawRoundRect(frontCircleRect, radius, radius, paint);
    }
}

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From source file:com.mx.hb.moon.view.SlideSwitch.java

@Override
protected void onDraw(Canvas canvas) {
    if (shape == SHAPE_RECT) {//
        paint.setColor(Color.LTGRAY);
        canvas.drawRect(backRect, paint);
        paint.setColor(color_theme);//from w ww  .  j  av a  2s .  c  o  m
        paint.setAlpha(alpha);
        canvas.drawRect(backRect, paint);
        frontRect.set(frontRect_left, RIM_SIZE, frontRect_left + getMeasuredWidth() / 2 - RIM_SIZE,
                getMeasuredHeight() - RIM_SIZE);
        paint.setColor(Color.WHITE);
        canvas.drawRect(frontRect, paint);
    } else {//
        int radius;
        radius = backRect.height() / 2 - RIM_SIZE;
        paint.setColor(Color.LTGRAY);
        backCircleRect.set(backRect);
        canvas.drawRoundRect(backCircleRect, radius, radius, paint);
        paint.setColor(color_theme);
        paint.setAlpha(alpha);
        canvas.drawRoundRect(backCircleRect, radius, radius, paint);
        frontRect.set(frontRect_left, RIM_SIZE, frontRect_left + backRect.height() - 2 * RIM_SIZE,
                backRect.height() - RIM_SIZE);
        frontCircleRect.set(frontRect);
        paint.setColor(Color.WHITE);
        canvas.drawRoundRect(frontCircleRect, radius, radius, paint);
    }
}

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