Example usage for android.graphics Canvas drawPath

Introduction

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

Prototype

public void drawPath(@NonNull Path path, @NonNull Paint paint) 

Source Link

Document

Draw the specified path using the specified paint.

Usage

From source file:com.github.jorgecastillo.FillableLoader.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (!hasToDraw()) {
        return;/*  w ww  .j  a v a 2  s  .  co m*/
    }

    long elapsedTime = System.currentTimeMillis() - initialTime;

    float phase = MathUtil.constrain(0, 1, elapsedTime * 1f / strokeDrawingDuration);
    float distance = animInterpolator.getInterpolation(phase) * pathData.length;

    dashPaint.setPathEffect(getDashPathForDistance(distance));
    canvas.drawPath(pathData.path, dashPaint);

    if (isStrokeTotallyDrawn(elapsedTime)) {
        if (drawingState < State.FILL_STARTED) {
            changeState(State.FILL_STARTED);
        }

        float fillPhase = MathUtil.constrain(0, 1, (elapsedTime - strokeDrawingDuration) * 1f / fillDuration);

        clippingTransform.transform(canvas, fillPhase, this);
        canvas.drawPath(pathData.path, fillPaint);
    }

    if (hasToKeepDrawing(elapsedTime)) {
        ViewCompat.postInvalidateOnAnimation(this);
    } else {
        changeState(State.FINISHED);
    }
}

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From source file:com.ruesga.rview.widget.ActivityStatsChart.java

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

    // Draw the grid lines
    float gap = mViewArea.height() / (MAX_Y_TICKS_LABELS * 1f);
    float y = mViewArea.top + gap;
    for (int i = 0; i < MAX_Y_TICKS_LABELS; i++) {
        canvas.drawLine(mViewArea.left, y, mViewArea.right, y, mGridLinesPaint);
        y += gap;//from   ww w  .j av  a2  s  .  co  m
    }

    // Draw the points data
    canvas.drawPath(mAreaPath, mAreaPaint);
    canvas.drawPath(mLinePath, mLinePaint);

    if (mDataAvailable) {
        // Draw ticks labels
        float margin = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 2f,
                getResources().getDisplayMetrics());
        y = mViewArea.top + gap;
        for (int i = 0; i < MAX_Y_TICKS_LABELS; i++) {
            canvas.drawText(mYTicksLabels[i], mViewArea.right - margin, y - margin, mTicksPaint);
            y += gap;
        }
    }
}

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From source file:chinanurse.cn.nurse.list.WaveView.java

@Override
protected void onDraw(Canvas canvas) {
    //???????????
    canvas.drawPath(mWavePath, mShadowPaint);
    canvas.drawPath(mWavePath, mPaint);//w  w w .  ja  va 2s  .  c o  m
    mWavePath.reset();

    //??????
    mDropTangentPath.reset();
    mDropCirclePath.reset();
    float circleCenterY = (Float) mDropCircleAnimator.getAnimatedValue();
    float circleCenterX = mWidth / 2.f;
    mDropRect.setEmpty();
    //?RectF??
    float scale = (Float) mDisappearCircleAnimator.getAnimatedValue();
    float vertical = (Float) mDropBounceVerticalAnimator.getAnimatedValue();
    float horizontal = (Float) mDropBounceHorizontalAnimator.getAnimatedValue();
    mDropRect.set(
            circleCenterX - mDropCircleRadius * (1 + vertical) * scale + mDropCircleRadius * horizontal / 2,
            circleCenterY + mDropCircleRadius * (1 + horizontal) * scale - mDropCircleRadius * vertical / 2,
            circleCenterX + mDropCircleRadius * (1 + vertical) * scale - mDropCircleRadius * horizontal / 2,
            circleCenterY - mDropCircleRadius * (1 + horizontal) * scale + mDropCircleRadius * vertical / 2);
    float vertex = (Float) mDropVertexAnimator.getAnimatedValue();
    mDropTangentPath.moveTo(circleCenterX, vertex);
    //?(p1,q),(p2,q)
    double q = (Math.pow(mDropCircleRadius, 2) + circleCenterY * vertex - Math.pow(circleCenterY, 2))
            / (vertex - circleCenterY);
    //2????????
    double b = -2.0 * mWidth / 2;
    double c = Math.pow(q - circleCenterY, 2) + Math.pow(circleCenterX, 2) - Math.pow(mDropCircleRadius, 2);
    double p1 = (-b + Math.sqrt(b * b - 4 * c)) / 2;
    double p2 = (-b - Math.sqrt(b * b - 4 * c)) / 2;
    mDropTangentPath.lineTo((float) p1, (float) q);
    mDropTangentPath.lineTo((float) p2, (float) q);
    mDropTangentPath.close();
    mShadowPath.set(mDropTangentPath);
    mShadowPath.addOval(mDropRect, Path.Direction.CCW);
    mDropCirclePath.addOval(mDropRect, Path.Direction.CCW);
    if (mDropVertexAnimator.isRunning()) {
        canvas.drawPath(mShadowPath, mShadowPaint);
    } else {
        canvas.drawPath(mDropCirclePath, mShadowPaint);
    }
    canvas.drawPath(mDropTangentPath, mPaint);
    canvas.drawPath(mDropCirclePath, mPaint);
}

---

From source file:com.gosuncn.core.ui.widget.BezierView.java

@Override
protected void onDraw(Canvas canvas) {

    bezierWidth = getWidth();/*from ww  w  . ja  v a 2 s .  c  o  m*/
    bezierHeight = getHeight();

    /**
     * Reset path before drawing
     */
    path.reset();

    /**
     * Start point for drawing
     */
    path.moveTo(0, bezierHeight);

    /**
     * Seth half path of bezier view
     */
    path.cubicTo(bezierWidth / 4, bezierHeight, bezierWidth / 4, 0, bezierWidth / 2, 0);

    /**
     * Seth second part of bezier view
     */
    path.cubicTo((bezierWidth / 4) * 3, 0, (bezierWidth / 4) * 3, bezierHeight, bezierWidth, bezierHeight);

    /**
     * Draw our bezier view
     */
    canvas.drawPath(path, paint);
}

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From source file:cn.appsdream.nestrefresh.matetialstyle.WaveView.java

@Override
protected void onDraw(Canvas canvas) {
    //???????????
    canvas.drawPath(mWavePath, mShadowPaint);
    canvas.drawPath(mWavePath, mPaint);//from   ww w. ja  va 2s .  c om
    mWavePath.rewind();

    //??????
    mDropTangentPath.rewind();
    mDropCirclePath.rewind();
    float circleCenterY = (Float) mDropCircleAnimator.getAnimatedValue();
    float circleCenterX = mWidth / 2.f;
    mDropRect.setEmpty();
    //?RectF??
    float scale = (Float) mDisappearCircleAnimator.getAnimatedValue();
    float vertical = (Float) mDropBounceVerticalAnimator.getAnimatedValue();
    float horizontal = (Float) mDropBounceHorizontalAnimator.getAnimatedValue();
    mDropRect.set(
            circleCenterX - mDropCircleRadius * (1 + vertical) * scale + mDropCircleRadius * horizontal / 2,
            circleCenterY + mDropCircleRadius * (1 + horizontal) * scale - mDropCircleRadius * vertical / 2,
            circleCenterX + mDropCircleRadius * (1 + vertical) * scale - mDropCircleRadius * horizontal / 2,
            circleCenterY - mDropCircleRadius * (1 + horizontal) * scale + mDropCircleRadius * vertical / 2);
    float vertex = (Float) mDropVertexAnimator.getAnimatedValue();
    mDropTangentPath.moveTo(circleCenterX, vertex);
    //?(p1,q),(p2,q)
    double q = (Math.pow(mDropCircleRadius, 2) + circleCenterY * vertex - Math.pow(circleCenterY, 2))
            / (vertex - circleCenterY);
    //2????????
    double b = -2.0 * mWidth / 2;
    double c = Math.pow(q - circleCenterY, 2) + Math.pow(circleCenterX, 2) - Math.pow(mDropCircleRadius, 2);
    double p1 = (-b + Math.sqrt(b * b - 4 * c)) / 2;
    double p2 = (-b - Math.sqrt(b * b - 4 * c)) / 2;
    mDropTangentPath.lineTo((float) p1, (float) q);
    mDropTangentPath.lineTo((float) p2, (float) q);
    mDropTangentPath.close();
    mShadowPath.set(mDropTangentPath);
    mShadowPath.addOval(mDropRect, Path.Direction.CCW);
    mDropCirclePath.addOval(mDropRect, Path.Direction.CCW);
    if (mDropVertexAnimator.isRunning()) {
        canvas.drawPath(mShadowPath, mShadowPaint);
    } else {
        canvas.drawPath(mDropCirclePath, mShadowPaint);
    }
    canvas.drawPath(mDropTangentPath, mPaint);
    canvas.drawPath(mDropCirclePath, mPaint);
}

---

From source file:piuk.blockchain.android.util.ViewPagerTabs.java

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

    final int viewWidth = getWidth();
    final int viewHalfWidth = viewWidth / 2;
    final int viewBottom = getHeight();

    final float density = getResources().getDisplayMetrics().density;
    final float spacing = 32 * density;

    final Path path = new Path();
    path.moveTo(viewHalfWidth, viewBottom - 5 * density);
    path.lineTo(viewHalfWidth + 5 * density, viewBottom);
    path.lineTo(viewHalfWidth - 5 * density, viewBottom);
    path.close();/*www  .  j  a v  a 2s  . com*/

    paint.setColor(Color.WHITE);
    canvas.drawPath(path, paint);

    paint.setTypeface(Typeface.DEFAULT_BOLD);
    final float y = getPaddingTop() + -paint.getFontMetrics().top;

    for (int i = 0; i < labels.size(); i++) {
        final String label = labels.get(i);

        paint.setTypeface(i == pagePosition ? Typeface.DEFAULT_BOLD : Typeface.DEFAULT);
        paint.setColor(i == pagePosition ? Color.BLACK : Color.DKGRAY);

        final float x = viewHalfWidth + (maxWidth + spacing) * (i - pageOffset);
        final float labelWidth = paint.measureText(label);
        final float labelHalfWidth = labelWidth / 2;

        final float labelLeft = x - labelHalfWidth;
        final float labelVisibleLeft = labelLeft >= 0 ? 1f : 1f - (-labelLeft / labelWidth);

        final float labelRight = x + labelHalfWidth;
        final float labelVisibleRight = labelRight < viewWidth ? 1f
                : 1f - ((labelRight - viewWidth) / labelWidth);

        final float labelVisible = Math.min(labelVisibleLeft, labelVisibleRight);

        paint.setAlpha((int) (labelVisible * 255));

        canvas.drawText(label, labelLeft, y, paint);
    }
}

---

From source file:jp.co.recruit_lifestyle.android.widget.WaveView.java

@Override
protected void onDraw(Canvas canvas) {
    //?????????????    canvas.drawPath(mWavePath, mShadowPaint);
    canvas.drawPath(mWavePath, mPaint);
    mWavePath.reset();//from ww w  .  j  a  v  a 2s.  c om

    //??????
    mDropTangentPath.reset();
    mDropCirclePath.reset();
    float circleCenterY = (Float) mDropCircleAnimator.getAnimatedValue();
    float circleCenterX = mWidth / 2.f;
    mDropRect.setEmpty();
    //?RectF???    
    float scale = (Float) mDisappearCircleAnimator.getAnimatedValue();
    float vertical = (Float) mDropBounceVerticalAnimator.getAnimatedValue();
    float horizontal = (Float) mDropBounceHorizontalAnimator.getAnimatedValue();
    mDropRect.set(
            circleCenterX - mDropCircleRadius * (1 + vertical) * scale + mDropCircleRadius * horizontal / 2,
            circleCenterY + mDropCircleRadius * (1 + horizontal) * scale - mDropCircleRadius * vertical / 2,
            circleCenterX + mDropCircleRadius * (1 + vertical) * scale - mDropCircleRadius * horizontal / 2,
            circleCenterY - mDropCircleRadius * (1 + horizontal) * scale + mDropCircleRadius * vertical / 2);
    float vertex = (Float) mDropVertexAnimator.getAnimatedValue();
    mDropTangentPath.moveTo(circleCenterX, vertex);
    //?(p1,q),(p2,q)
    double q = (Math.pow(mDropCircleRadius, 2) + circleCenterY * vertex - Math.pow(circleCenterY, 2))
            / (vertex - circleCenterY);
    //2????????    
    double b = -2.0 * mWidth / 2;
    double c = Math.pow(q - circleCenterY, 2) + Math.pow(circleCenterX, 2) - Math.pow(mDropCircleRadius, 2);
    double p1 = (-b + Math.sqrt(b * b - 4 * c)) / 2;
    double p2 = (-b - Math.sqrt(b * b - 4 * c)) / 2;
    mDropTangentPath.lineTo((float) p1, (float) q);
    mDropTangentPath.lineTo((float) p2, (float) q);
    mDropTangentPath.close();
    mShadowPath.set(mDropTangentPath);
    mShadowPath.addOval(mDropRect, Path.Direction.CCW);
    mDropCirclePath.addOval(mDropRect, Path.Direction.CCW);
    if (mDropVertexAnimator.isRunning()) {
        canvas.drawPath(mShadowPath, mShadowPaint);
    } else {
        canvas.drawPath(mDropCirclePath, mShadowPaint);
    }
    canvas.drawPath(mDropTangentPath, mPaint);
    canvas.drawPath(mDropCirclePath, mPaint);
}

---

From source file:biz.wiz.android.wallet.util.ViewPagerTabs.java

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

    final int viewWidth = getWidth();
    final int viewHalfWidth = viewWidth / 2;
    final int viewBottom = getHeight();

    final float density = getResources().getDisplayMetrics().density;
    final float spacing = 32 * density;

    path.reset();/*from w ww.  ja va 2s . c o m*/
    path.moveTo(viewHalfWidth, viewBottom - 5 * density);
    path.lineTo(viewHalfWidth + 5 * density, viewBottom);
    path.lineTo(viewHalfWidth - 5 * density, viewBottom);
    path.close();

    paint.setColor(Color.WHITE);
    canvas.drawPath(path, paint);

    paint.setTypeface(Typeface.DEFAULT_BOLD);
    final float y = getPaddingTop() + -paint.getFontMetrics().top;

    for (int i = 0; i < labels.size(); i++) {
        final String label = labels.get(i);

        paint.setTypeface(i == pagePosition ? Typeface.DEFAULT_BOLD : Typeface.DEFAULT);
        paint.setColor(i == pagePosition ? Color.BLACK : Color.DKGRAY);

        final float x = viewHalfWidth + (maxWidth + spacing) * (i - pageOffset);
        final float labelWidth = paint.measureText(label);
        final float labelHalfWidth = labelWidth / 2;

        final float labelLeft = x - labelHalfWidth;
        final float labelVisibleLeft = labelLeft >= 0 ? 1f : 1f - (-labelLeft / labelWidth);

        final float labelRight = x + labelHalfWidth;
        final float labelVisibleRight = labelRight < viewWidth ? 1f
                : 1f - ((labelRight - viewWidth) / labelWidth);

        final float labelVisible = Math.min(labelVisibleLeft, labelVisibleRight);

        paint.setAlpha((int) (labelVisible * 255));

        canvas.drawText(label, labelLeft, y, paint);
    }
}

---

From source file:com.kncwallet.wallet.util.ViewPagerTabs.java

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

    final int viewWidth = getWidth();
    final int viewHalfWidth = viewWidth / 2;
    final int viewBottom = getHeight();

    final float density = getResources().getDisplayMetrics().density;
    final float spacing = 32 * density;

    path.reset();/* ww w.j a v a 2 s .co m*/
    path.moveTo(viewHalfWidth, viewBottom - 5 * density);
    path.lineTo(viewHalfWidth + 5 * density, viewBottom);
    path.lineTo(viewHalfWidth - 5 * density, viewBottom);
    path.close();

    paint.setColor(Color.TRANSPARENT);
    canvas.drawPath(path, paint);

    paint.setTypeface(Typeface.DEFAULT_BOLD);
    final float y = getPaddingTop() + -paint.getFontMetrics().top;

    for (int i = 0; i < labels.size(); i++) {
        final String label = labels.get(i);

        paint.setTypeface(i == pagePosition ? Typeface.DEFAULT_BOLD : Typeface.DEFAULT);
        paint.setColor(i == pagePosition ? Color.WHITE : Color.WHITE);

        final float x = viewHalfWidth + (maxWidth + spacing) * (i - pageOffset);
        final float labelWidth = paint.measureText(label);
        final float labelHalfWidth = labelWidth / 2;

        final float labelLeft = x - labelHalfWidth;
        final float labelVisibleLeft = labelLeft >= 0 ? 1f : 1f - (-labelLeft / labelWidth);

        final float labelRight = x + labelHalfWidth;
        final float labelVisibleRight = labelRight < viewWidth ? 1f
                : 1f - ((labelRight - viewWidth) / labelWidth);

        final float labelVisible = Math.min(labelVisibleLeft, labelVisibleRight);

        paint.setAlpha((int) (labelVisible * 255));

        canvas.drawText(label, labelLeft, y, paint);
    }
}

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

public void drawTrueNorthArrow(Canvas canvas, float drawnAngle) {
    trueNorthArrowPaint.reset();//from w w  w . ja  v  a  2 s .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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