java类android.graphics.SweepGradient的实例源码-第2页-面圈网

CircularSlider.java 文件源码项目：circular-slider-android 阅读 16 收藏 0 点赞 0 评论 0

@Override
protected void onSizeChanged(int w, int h, int oldW, int oldH) {
    // use smaller dimension for calculations (depends on parent size)
    int smallerDim = w > h ? h : w;

    // find circle's rectangle points
    int largestCenteredSquareLeft = (w - smallerDim) / 2;
    int largestCenteredSquareTop = (h - smallerDim) / 2;
    int largestCenteredSquareRight = largestCenteredSquareLeft + smallerDim;
    int largestCenteredSquareBottom = largestCenteredSquareTop + smallerDim;

    // save circle coordinates and radius in fields
    mCircleCenterX = largestCenteredSquareRight / 2 + (w - largestCenteredSquareRight) / 2;
    mCircleCenterY = largestCenteredSquareBottom / 2 + (h - largestCenteredSquareBottom) / 2;
    mCircleRadius = smallerDim / 2 - mBorderThickness / 2 - mPadding;

    if (mBorderGradientColors != null) {
        mGradientShader = new SweepGradient(mCircleRadius, mCircleRadius, mBorderGradientColors, null);
    }

    // works well for now, should we call something else here?
    super.onSizeChanged(w, h, oldW, oldH);
}

ColorPicker.java 文件源码项目：redalert-android 阅读 20 收藏 0 点赞 0 评论 0

private Bitmap createColorWheelBitmap(int width, int height) {

        Bitmap bitmap = Bitmap.createBitmap(width, height, Config.ARGB_8888);

        int colorCount = 12;
        int colorAngleStep = 360 / 12;
        int colors[] = new int[colorCount + 1];
        float hsv[] = new float[]{0f, 1f, 1f};
        for (int i = 0; i < colors.length; i++) {
            hsv[0] = (i * colorAngleStep + 180) % 360;
            colors[i] = Color.HSVToColor(hsv);
        }
        colors[colorCount] = colors[0];

        SweepGradient sweepGradient = new SweepGradient(width / 2, height / 2, colors, null);
        RadialGradient radialGradient = new RadialGradient(width / 2, height / 2, colorWheelRadius, 0xFFFFFFFF, 0x00FFFFFF, TileMode.CLAMP);
        ComposeShader composeShader = new ComposeShader(sweepGradient, radialGradient, PorterDuff.Mode.SRC_OVER);

        colorWheelPaint.setShader(composeShader);

        Canvas canvas = new Canvas(bitmap);
        canvas.drawCircle(width / 2, height / 2, colorWheelRadius, colorWheelPaint);

        return bitmap;

    }

ColorPicker.java 文件源码项目：EspLight-APP 阅读 20 收藏 0 点赞 0 评论 0

private Bitmap createColorWheelBitmap(int width, int height) {

        Bitmap bitmap = Bitmap.createBitmap(width, height, Config.ARGB_8888);

        int colorCount = 12;
        int colorAngleStep = 360 / 12;
        int colors[] = new int[colorCount + 1];
        float hsv[] = new float[] { 0f, 1f, 1f };
        for (int i = 0; i < colors.length; i++) {
            hsv[0] = (i * colorAngleStep + 180) % 360;
            colors[i] = Color.HSVToColor(hsv);
        }
        colors[colorCount] = colors[0];

        SweepGradient sweepGradient = new SweepGradient(width / 2, height / 2, colors, null);
        RadialGradient radialGradient = new RadialGradient(width / 2, height / 2, colorWheelRadius, 0xFFFFFFFF, 0x00FFFFFF, TileMode.CLAMP);
        ComposeShader composeShader = new ComposeShader(sweepGradient, radialGradient, PorterDuff.Mode.SRC_OVER);

        colorWheelPaint.setShader(composeShader);

        Canvas canvas = new Canvas(bitmap);
        canvas.drawCircle(width / 2, height / 2, colorWheelRadius, colorWheelPaint);

        return bitmap;

    }

CircleProgressBar.java 文件源码项目：ProjectX 阅读 29 收藏 0 点赞 0 评论 0

/**
 * 绘制进度
 *
 * @param canvas 画布
 */
protected void drawProgress(Canvas canvas) {
    if (mRadius == 0 || mProgressSize == 0 || mAnimatorProgress < 0)
        return;
    mPaint.setStyle(Paint.Style.STROKE);
    mPaint.setStrokeJoin(Paint.Join.ROUND);
    mPaint.setStrokeCap(Paint.Cap.ROUND);
    mPaint.setStrokeWidth(mProgressSize);
    final float halfCircleSize = mProgressSize * 0.5f;
    mRectF.set(-mRadius + halfCircleSize, -mRadius + halfCircleSize,
            mRadius - halfCircleSize, mRadius - halfCircleSize);
    SweepGradient sweepGradient = new SweepGradient(0, 0, mGradientColors, mGradientPositions);
    mRotateMatrix.setRotate(mStartAngle, 0, 0);
    sweepGradient.setLocalMatrix(mRotateMatrix);
    mPaint.setShader(sweepGradient);
    canvas.save();
    canvas.drawArc(mRectF, mStartAngle, mAnimatorProgressAngle, false, mPaint);
    canvas.restore();
}

CircleProgressBar.java 文件源码项目：ProjectX 阅读 28 收藏 0 点赞 0 评论 0

/**
 * 绘制载入
 *
 * @param canvas 画布
 */
protected void drawLoading(Canvas canvas) {
    mPaint.setStyle(Paint.Style.STROKE);
    mPaint.setStrokeJoin(Paint.Join.ROUND);
    mPaint.setStrokeCap(Paint.Cap.ROUND);
    mPaint.setStrokeWidth(mProgressSize);
    final float halfCircleSize = mProgressSize * 0.5f;
    SweepGradient sweepGradient = new SweepGradient(0, 0, mGradientColors, mGradientPositions);
    mRotateMatrix.setRotate(mStartAngle - mLoadingStartAngle -
            mLoadingSweepAngle * mLoadingOffset, 0, 0);
    sweepGradient.setLocalMatrix(mRotateMatrix);
    mPaint.setShader(sweepGradient);
    canvas.save();
    canvas.rotate(mLoadingStartAngle);
    canvas.rotate(mLoadingSweepAngle * mLoadingOffset);
    canvas.drawPoint(mRadius - halfCircleSize, 0, mPaint);
    canvas.restore();
}

ColorCircle.java 文件源码项目：DMXControl-for-Android 阅读 13 收藏 0 点赞 0 评论 0

/**
 * Initializes variables.
 */
void init() {

    mColors = new int[]{
            0xFFFF0000, 0xFFFF00FF, 0xFF0000FF, 0xFF00FFFF, 0xFF00FF00,
            0xFFFFFF00, 0xFFFF0000
    };
    Shader s = new SweepGradient(0, 0, mColors, null);

    mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    mPaint.setShader(s);
    mPaint.setStyle(Paint.Style.STROKE);

    mCenterPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    mCenterPaint.setStrokeWidth(5);
}

ColorPicker.java 文件源码项目：MWord 阅读 31 收藏 0 点赞 0 评论 0

private Bitmap createColorWheelBitmap(int width, int height) {

        Bitmap bitmap = Bitmap.createBitmap(width, height, Config.ARGB_8888);

        int colorCount = 12;
        int colorAngleStep = 360 / 12;
        int colors[] = new int[colorCount + 1];
        float hsv[] = new float[] { 0f, 1f, 1f };
        for (int i = 0; i < colors.length; i++) {
            hsv[0] = (i * colorAngleStep + 180) % 360;
            colors[i] = Color.HSVToColor(hsv);
        }
        colors[colorCount] = colors[0];

        SweepGradient sweepGradient = new SweepGradient(width / 2, height / 2, colors, null);
        RadialGradient radialGradient = new RadialGradient(width / 2, height / 2, colorWheelRadius, 0xFFFFFFFF, 0x00FFFFFF, TileMode.CLAMP);
        ComposeShader composeShader = new ComposeShader(sweepGradient, radialGradient, PorterDuff.Mode.SRC_OVER);

        colorWheelPaint.setShader(composeShader);

        Canvas canvas = new Canvas(bitmap);
        canvas.drawCircle(width / 2, height / 2, colorWheelRadius, colorWheelPaint);

        return bitmap;

    }

MultiColorPicker.java 文件源码项目：MWord 阅读 19 收藏 0 点赞 0 评论 0

private Bitmap createColorWheelBitmap(int width, int height) {

        Bitmap bitmap = Bitmap.createBitmap(width, height, Config.ARGB_8888);

        int colorCount = 12;
        int colorAngleStep = 360 / 12;
        int colors[] = new int[colorCount + 1];
        float hsv[] = new float[] { 0f, 1f, 1f };
        for (int i = 0; i < colors.length; i++) {
            hsv[0] = (i * colorAngleStep + 180) % 360;
            colors[i] = Color.HSVToColor(hsv);
        }
        colors[colorCount] = colors[0];

        SweepGradient sweepGradient = new SweepGradient(width / 2, height / 2, colors, null);
        RadialGradient radialGradient = new RadialGradient(width / 2, height / 2, colorWheelRadius, 0xFFFFFFFF, 0x00FFFFFF, TileMode.CLAMP);
        ComposeShader composeShader = new ComposeShader(sweepGradient, radialGradient, PorterDuff.Mode.SRC_OVER);

        colorWheelPaint.setShader(composeShader);

        Canvas canvas = new Canvas(bitmap);
        canvas.drawCircle(width / 2, height / 2, colorWheelRadius, colorWheelPaint);

        return bitmap;

    }

ColorPicker.java 文件源码项目：BluetoothBacon 阅读 24 收藏 0 点赞 0 评论 0

private Bitmap createColorWheelBitmap(int width, int height) {

        Bitmap bitmap = Bitmap.createBitmap(width, height, Config.ARGB_8888);

        int colorCount = 12;
        int colorAngleStep = 360 / 12;
        int colors[] = new int[colorCount + 1];
        float hsv[] = new float[] { 0f, 1f, 1f };
        for (int i = 0; i < colors.length; i++) {
            hsv[0] = (i * colorAngleStep + 180) % 360;
            colors[i] = Color.HSVToColor(hsv);
        }
        colors[colorCount] = colors[0];

        SweepGradient sweepGradient = new SweepGradient(width / 2, height / 2, colors, null);
        RadialGradient radialGradient = new RadialGradient(width / 2, height / 2, colorWheelRadius, 0xFFFFFFFF, 0x00FFFFFF, TileMode.CLAMP);
        ComposeShader composeShader = new ComposeShader(sweepGradient, radialGradient, PorterDuff.Mode.SRC_OVER);

        colorWheelPaint.setShader(composeShader);

        Canvas canvas = new Canvas(bitmap);
        canvas.drawCircle(width / 2, height / 2, colorWheelRadius, colorWheelPaint);

        return bitmap;

    }

MultiColorPicker.java 文件源码项目：BluetoothBacon 阅读 24 收藏 0 点赞 0 评论 0

private Bitmap createColorWheelBitmap(int width, int height) {

        Bitmap bitmap = Bitmap.createBitmap(width, height, Config.ARGB_8888);

        int colorCount = 12;
        int colorAngleStep = 360 / 12;
        int colors[] = new int[colorCount + 1];
        float hsv[] = new float[] { 0f, 1f, 1f };
        for (int i = 0; i < colors.length; i++) {
            hsv[0] = (i * colorAngleStep + 180) % 360;
            colors[i] = Color.HSVToColor(hsv);
        }
        colors[colorCount] = colors[0];

        SweepGradient sweepGradient = new SweepGradient(width / 2, height / 2, colors, null);
        RadialGradient radialGradient = new RadialGradient(width / 2, height / 2, colorWheelRadius, 0xFFFFFFFF, 0x00FFFFFF, TileMode.CLAMP);
        ComposeShader composeShader = new ComposeShader(sweepGradient, radialGradient, PorterDuff.Mode.SRC_OVER);

        colorWheelPaint.setShader(composeShader);

        Canvas canvas = new Canvas(bitmap);
        canvas.drawCircle(width / 2, height / 2, colorWheelRadius, colorWheelPaint);

        return bitmap;

    }