Java Paint.setMaskFilter方法代码示例

import android.graphics.Paint; //导入方法依赖的package包/类
public void init() {

        mBackgroundPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
        mBackgroundPaint.setStyle(Paint.Style.FILL_AND_STROKE);
        mBackgroundPaint.setColor(mBackgroudColor);

        mFocusPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
        mFocusPaint.setStyle(Paint.Style.FILL_AND_STROKE);
        mFocusPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
        if (mBlurRadius > 0)
            mFocusPaint.setMaskFilter(new BlurMaskFilter(mBlurRadius, BlurMaskFilter.Blur.NORMAL));

        setLayoutParams(new ViewGroup.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));

        if (mTipsView == null && mTipsViewResId != 0)
            mTipsView = LayoutInflater.from(mContext).inflate(mTipsViewResId, this, false);

        addView(mTipsView);
        setVisibility(View.GONE);
        setBackgroundColor(Color.TRANSPARENT);

        mTargetView.getViewTreeObserver().addOnGlobalLayoutListener(this);
    }
 

import android.graphics.Paint; //导入方法依赖的package包/类
/**
 *图片阴影
 * @param originalBitmap
 */
public static Drawable drawImageDropShadow(Bitmap originalBitmap, Context context) {

    BlurMaskFilter blurFilter = new BlurMaskFilter(3,BlurMaskFilter.Blur.NORMAL);
    Paint shadowPaint = new Paint();
    shadowPaint.setAlpha(80);
    shadowPaint.setColor(context.getResources().getColor(R.color.black));
    shadowPaint.setMaskFilter(blurFilter);
    int[] offsetXY = new int[2];
    Bitmap shadowBitmap = originalBitmap.extractAlpha(shadowPaint, offsetXY);
    Bitmap shadowImage32 = shadowBitmap.copy(Bitmap.Config.ARGB_8888, true);
    if ( !shadowImage32.isPremultiplied() )
    {
        shadowImage32.setPremultiplied( true );
    }
    Canvas c = new Canvas(shadowImage32);
    c.drawBitmap(originalBitmap, offsetXY[0], offsetXY[1], null);
    return new BitmapDrawable(shadowImage32);
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
/**
 * 　为指定图片增加阴影
 *
 * @param map    　图片
 * @param radius 　阴影的半径
 * @return bitmap
 */
public static Bitmap drawShadow(Bitmap map, int radius) {
    if (map == null)
        return null;

    BlurMaskFilter blurFilter = new BlurMaskFilter(radius, BlurMaskFilter.Blur.OUTER);
    Paint shadowPaint = new Paint();
    shadowPaint.setMaskFilter(blurFilter);

    int[] offsetXY = new int[2];
    Bitmap shadowImage = map.extractAlpha(shadowPaint, offsetXY);
    shadowImage = shadowImage.copy(Bitmap.Config.ARGB_8888, true);
    Canvas c = new Canvas(shadowImage);
    c.drawBitmap(map, -offsetXY[0], -offsetXY[1], null);
    return shadowImage;
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
private ShadowGenerator(Context context) {
    mIconSize = LauncherAppState.getIDP(context).iconBitmapSize;
    mCanvas = new Canvas();
    mBlurPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
    mBlurPaint.setMaskFilter(new BlurMaskFilter(mIconSize * BLUR_FACTOR, Blur.NORMAL));
    mDrawPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
public static Bitmap createPillWithShadow(int rectColor, int width, int height) {

        float shadowRadius = height * 1f / 32;
        float shadowYOffset = height * 1f / 16;

        int radius = height / 2;

        Canvas canvas = new Canvas();
        Paint blurPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
        blurPaint.setMaskFilter(new BlurMaskFilter(shadowRadius, Blur.NORMAL));

        int centerX = Math.round(width / 2 + shadowRadius);
        int centerY = Math.round(radius + shadowRadius + shadowYOffset);
        int center = Math.max(centerX, centerY);
        int size = center * 2;
        Bitmap result = Bitmap.createBitmap(size, size, Config.ARGB_8888);
        canvas.setBitmap(result);

        int left = center - width / 2;
        int top = center - height / 2;
        int right = center + width / 2;
        int bottom = center + height / 2;

        // Draw ambient shadow, center aligned within size
        blurPaint.setAlpha(AMBIENT_SHADOW_ALPHA);
        canvas.drawRoundRect(left, top, right, bottom, radius, radius, blurPaint);

        // Draw key shadow, bottom aligned within size
        blurPaint.setAlpha(KEY_SHADOW_ALPHA);
        canvas.drawRoundRect(left, top + shadowYOffset, right, bottom + shadowYOffset,
                radius, radius, blurPaint);

        // Draw the circle
        Paint drawPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
        drawPaint.setColor(rectColor);
        canvas.drawRoundRect(left, top, right, bottom, radius, radius, drawPaint);

        return result;
    }
 

import android.graphics.Paint; //导入方法依赖的package包/类
/**
 * 初始化对象
 */
private void init(Context context) {
    tipBitmaps = new ArrayList<>();
    targetViews = new ArrayList<>();
    rootView = ((Activity) getContext()).findViewById(android.R.id.content);
    // 实例化画笔并开启其抗锯齿和抗抖动
    mPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.DITHER_FLAG);
    // 设置画笔透明度为0是关键！
    mPaint.setARGB(0, 255, 0, 0);
    // 设置混合模式为DST_IN
    mPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
    BlurMaskFilter.Blur blurStyle = null;
    switch (maskblurstyle) {
        case MASKBLURSTYLE_SOLID:
            blurStyle = BlurMaskFilter.Blur.SOLID;
            break;
        case MASKBLURSTYLE_NORMAL:
            blurStyle = BlurMaskFilter.Blur.NORMAL;
            break;
    }
    mPaint.setMaskFilter(new BlurMaskFilter(15, blurStyle));
    // 生成前景图Bitmap
    fgBitmap = Bitmap.createBitmap(screenW, screenH, Bitmap.Config.ARGB_4444);
    // 将其注入画布
    mCanvas = new Canvas(fgBitmap);
    // 绘制前景画布颜色
    mCanvas.drawColor(maskColor);
    // 实例化箭头图片
    jtDownRight = BitmapFactory.decodeResource(getResources(), R.drawable.jt_down_right);
    jtDownLeft = BitmapFactory.decodeResource(getResources(), R.drawable.jt_down_left);
    jtUpLeft = BitmapFactory.decodeResource(getResources(), R.drawable.jt_up_left);
    jtUpRight = BitmapFactory.decodeResource(getResources(), R.drawable.jt_up_right);
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
private void initPaint()
{
    mShadowPaint = new Paint();
    mShadowPaint.setColor(mShadowColor);
    mShadowPaint.setDither(true); // 抖动处理，会使绘制出来的图片颜色更加平滑和饱满，图像更加清晰 by xiaoxuan 可以屏蔽
    mShadowPaint.setMaskFilter(new BlurMaskFilter(mShadowWidth, BlurMaskFilter.Blur.OUTER));
    mBorderPaint = new Paint();
    mBorderPaint.setColor(mBorderColor);
    mBorderPaint.setStrokeWidth(mBorderWidth);
    mBorderPaint.setStyle(Paint.Style.STROKE);
    mBorderPaint.setMaskFilter(new BlurMaskFilter(0.5f, BlurMaskFilter.Blur.NORMAL));
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
private Paint createCirclePaint(Resources resources) {
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    blurRadius = resources.getDimension(R.dimen.ame_default_cluster_circle_blur_radius);
    if (blurRadius > 0.0f) {
        BlurMaskFilter maskFilter = new BlurMaskFilter(blurRadius, BlurMaskFilter.Blur.SOLID);
        paint.setMaskFilter(maskFilter);
    }
    return paint;
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
/**
 * Initializes the {@code Paint} objects with the appropriate styles.
 */
private void initPaints() {
    mCirclePaint = new Paint();
    mCirclePaint.setAntiAlias(true);
    mCirclePaint.setDither(true);
    mCirclePaint.setColor(mCircleColor);
    mCirclePaint.setStrokeWidth(mCircleStrokeWidth);
    mCirclePaint.setStyle(Paint.Style.STROKE);
    mCirclePaint.setStrokeJoin(Paint.Join.ROUND);
    mCirclePaint.setStrokeCap(Paint.Cap.ROUND);

    mCircleFillPaint = new Paint();
    mCircleFillPaint.setAntiAlias(true);
    mCircleFillPaint.setDither(true);
    mCircleFillPaint.setColor(mCircleFillColor);
    mCircleFillPaint.setStyle(Paint.Style.FILL);

    mCircleProgressPaint = new Paint();
    mCircleProgressPaint.setAntiAlias(true);
    mCircleProgressPaint.setDither(true);
    mCircleProgressPaint.setColor(mCircleProgressColor);
    mCircleProgressPaint.setStrokeWidth(mCircleStrokeWidth);
    mCircleProgressPaint.setStyle(Paint.Style.STROKE);
    mCircleProgressPaint.setStrokeJoin(Paint.Join.ROUND);
    mCircleProgressPaint.setStrokeCap(Paint.Cap.ROUND);

    mCircleProgressGlowPaint = new Paint();
    mCircleProgressGlowPaint.set(mCircleProgressPaint);
    mCircleProgressGlowPaint.setMaskFilter(new BlurMaskFilter((5f * DPTOPX_SCALE), BlurMaskFilter.Blur.NORMAL));

    mPointerPaint = new Paint();
    mPointerPaint.setAntiAlias(true);
    mPointerPaint.setDither(true);
    mPointerPaint.setStyle(Paint.Style.FILL);
    mPointerPaint.setColor(mPointerColor);
    mPointerPaint.setStrokeWidth(mPointerRadius);

    mPointerHaloPaint = new Paint();
    mPointerHaloPaint.set(mPointerPaint);
    mPointerHaloPaint.setColor(mPointerHaloColor);
    mPointerHaloPaint.setAlpha(mPointerAlpha);
    mPointerHaloPaint.setStrokeWidth(mPointerRadius + mPointerHaloWidth);

    mPointerHaloBorderPaint = new Paint();
    mPointerHaloBorderPaint.set(mPointerPaint);
    mPointerHaloBorderPaint.setStrokeWidth(mPointerHaloBorderWidth);
    mPointerHaloBorderPaint.setStyle(Paint.Style.STROKE);

}
 

import android.graphics.Paint; //导入方法依赖的package包/类
private ShadowGenerator() {
    mIconSize = LauncherAppState.getInstance().getInvariantDeviceProfile().iconBitmapSize;
    mCanvas = new Canvas();
    mBlurPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
    mBlurPaint.setMaskFilter(new BlurMaskFilter(mIconSize * BLUR_FACTOR, Blur.NORMAL));
    mDrawPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
/**
 * Initializes the {@code Paint} objects with the appropriate styles.
 */
protected void initPaints() {
	mCirclePaint = new Paint();
	mCirclePaint.setAntiAlias(true);
	mCirclePaint.setDither(true);
	mCirclePaint.setColor(mCircleColor);
	mCirclePaint.setStrokeWidth(mCircleStrokeWidth);
	mCirclePaint.setStyle(Paint.Style.STROKE);
	mCirclePaint.setStrokeJoin(Paint.Join.ROUND);
	mCirclePaint.setStrokeCap(Paint.Cap.ROUND);

	mCircleFillPaint = new Paint();
	mCircleFillPaint.setAntiAlias(true);
	mCircleFillPaint.setDither(true);
	mCircleFillPaint.setColor(mCircleFillColor);
	mCircleFillPaint.setStyle(Paint.Style.FILL);

	mCircleProgressPaint = new Paint();
	mCircleProgressPaint.setAntiAlias(true);
	mCircleProgressPaint.setDither(true);
	mCircleProgressPaint.setColor(mCircleProgressColor);
	mCircleProgressPaint.setStrokeWidth(mCircleStrokeWidth);
	mCircleProgressPaint.setStyle(Paint.Style.STROKE);
	mCircleProgressPaint.setStrokeJoin(Paint.Join.ROUND);
	mCircleProgressPaint.setStrokeCap(Paint.Cap.ROUND);

	mCircleProgressGlowPaint = new Paint();
	mCircleProgressGlowPaint.set(mCircleProgressPaint);
	mCircleProgressGlowPaint.setMaskFilter(new BlurMaskFilter((5f * DPTOPX_SCALE), BlurMaskFilter.Blur.NORMAL));

	mPointerPaint = new Paint();
	mPointerPaint.setAntiAlias(true);
	mPointerPaint.setDither(true);
	mPointerPaint.setStyle(Paint.Style.FILL);
	mPointerPaint.setColor(mPointerColor);
	mPointerPaint.setStrokeWidth(mPointerRadius);

	mPointerHaloPaint = new Paint();
	mPointerHaloPaint.set(mPointerPaint);
	mPointerHaloPaint.setColor(mPointerHaloColor);
	mPointerHaloPaint.setAlpha(mPointerAlpha);
	mPointerHaloPaint.setStrokeWidth(mPointerRadius + mPointerHaloWidth);

	mPointerHaloBorderPaint = new Paint();
	mPointerHaloBorderPaint.set(mPointerPaint);
	mPointerHaloBorderPaint.setStrokeWidth(mPointerHaloBorderWidth);
	mPointerHaloBorderPaint.setStyle(Paint.Style.STROKE);

}
 

import android.graphics.Paint; //导入方法依赖的package包/类
private void initPaint() {
    //虚线
    bgLinePaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    bgLinePaint.setStyle(Paint.Style.STROKE);
    bgLinePaint.setColor(Color.parseColor("#ADADAD"));
    bgLinePaint.setStrokeWidth(2);
    PathEffect effects = new DashPathEffect(new float[]{13, 13}, 5);
    bgLinePaint.setPathEffect(effects);
    //发光线一号
    BlurMaskFilter bmf = new BlurMaskFilter(4, BlurMaskFilter.Blur.SOLID);
    linePaint1 = new Paint(Paint.ANTI_ALIAS_FLAG);
    linePaint1.setStyle(Paint.Style.STROKE);
    linePaint1.setColor(Color.parseColor("#fdeb6b"));
    linePaint1.setStrokeWidth(lineWidth);
    linePaint1.setMaskFilter(bmf);
    //发光线2号
    linePaint2 = new Paint(Paint.ANTI_ALIAS_FLAG);
    linePaint2.setStyle(Paint.Style.STROKE);
    linePaint2.setColor(Color.parseColor("#6effb6"));
    linePaint2.setStrokeWidth(lineWidth);
    linePaint2.setMaskFilter(bmf);
    //标题
    titlePaint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
    titlePaint.setTextSize(sp14);
    titlePaint.setColor(Color.parseColor("#adadad"));
    //数值一号
    valuePaint1 = new TextPaint(Paint.ANTI_ALIAS_FLAG);
    valuePaint1.setTextSize(sp10);
    valuePaint1.setColor(Color.parseColor(COLOR_1));
    //数值二号
    valuePaint2 = new TextPaint(Paint.ANTI_ALIAS_FLAG);
    valuePaint2.setTextSize(sp10);
    valuePaint2.setColor(Color.parseColor(COLOR_2));
    //文本
    textPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
    textPaint.setTextSize(sp10);
    textPaint.setColor(Color.WHITE);
    //标注
    labelPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
    labelPaint.setTextSize(sp10);
    labelPaint.setColor(Color.parseColor("#adadad"));
    //圆点
    circlePaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    circlePaint.setStyle(Paint.Style.FILL);
    circlePaint.setColor(Color.WHITE);
}
 

import android.graphics.Paint; //导入方法依赖的package包/类
protected void initPaints() {
    mCirclePaint = new Paint();
    mCirclePaint.setAntiAlias(true);
    mCirclePaint.setDither(true);
    mCirclePaint.setColor(mCircleColor);
    mCirclePaint.setStrokeWidth(mCircleStrokeWidth);
    mCirclePaint.setStyle(Paint.Style.STROKE);
    mCirclePaint.setStrokeJoin(Paint.Join.ROUND);
    mCirclePaint.setStrokeCap(Paint.Cap.ROUND);

    mCircleFillPaint = new Paint();
    mCircleFillPaint.setAntiAlias(true);
    mCircleFillPaint.setDither(true);
    mCircleFillPaint.setColor(mCircleFillColor);
    mCircleFillPaint.setStyle(Paint.Style.FILL);

    mCircleProgressPaint = new Paint();
    mCircleProgressPaint.setAntiAlias(true);
    mCircleProgressPaint.setDither(true);
    mCircleProgressPaint.setColor(mCircleProgressColor);
    mCircleProgressPaint.setStrokeWidth(mCircleStrokeWidth);
    mCircleProgressPaint.setStyle(Paint.Style.STROKE);
    mCircleProgressPaint.setStrokeJoin(Paint.Join.ROUND);
    mCircleProgressPaint.setStrokeCap(Paint.Cap.ROUND);

    mCircleProgressGlowPaint = new Paint();
    mCircleProgressGlowPaint.set(mCircleProgressPaint);
    mCircleProgressGlowPaint.setMaskFilter(new BlurMaskFilter((5f * DPTOPX_SCALE), BlurMaskFilter.Blur.NORMAL));

    mPointerPaint = new Paint();
    mPointerPaint.setAntiAlias(true);
    mPointerPaint.setDither(true);
    mPointerPaint.setStyle(Paint.Style.FILL);
    mPointerPaint.setColor(mPointerColor);
    mPointerPaint.setStrokeWidth(mPointerRadius);

    mPointerHaloPaint = new Paint();
    mPointerHaloPaint.set(mPointerPaint);
    mPointerHaloPaint.setColor(mPointerHaloColor);
    mPointerHaloPaint.setAlpha(mPointerAlpha);
    mPointerHaloPaint.setStrokeWidth(mPointerRadius + mPointerHaloWidth);

    mPointerHaloBorderPaint = new Paint();
    mPointerHaloBorderPaint.set(mPointerPaint);
    mPointerHaloBorderPaint.setStrokeWidth(mPointerHaloBorderWidth);
    mPointerHaloBorderPaint.setStyle(Paint.Style.STROKE);

}