Java Xfermode类代码示例

import android.graphics.Xfermode; //导入依赖的package包/类
@Override
protected void onDraw(Canvas canvas) {
    Drawable drawable = getDrawable();
    if (drawable instanceof BitmapDrawable) {
        RectF rectF = new RectF(drawable.getBounds());
        int restoreCount = canvas.saveLayer(rectF, null, Canvas.ALL_SAVE_FLAG);
        getImageMatrix().mapRect(rectF);

        Paint paint = ((BitmapDrawable) drawable).getPaint();
        paint.setAntiAlias(true);
        paint.setColor(0xff000000);

        canvas.drawARGB(0, 0, 0, 0);
        canvas.drawRoundRect(rectF, RADIUS, RADIUS, paint);

        Xfermode restoreMode = paint.getXfermode();
        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
        super.onDraw(canvas);

        // Restore paint and canvas
        paint.setXfermode(restoreMode);
        canvas.restoreToCount(restoreCount);
    } else {
        super.onDraw(canvas);
    }
}
 

import android.graphics.Xfermode; //导入依赖的package包/类
@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    //创建一个图层，在图层上演示图形混合后的效果
    int sc = canvas.saveLayer(null, mPaint, ALL_SAVE_FLAG);

    canvas.translate(mWidth / 2, mHeight / 2);

    int radius = Math.min(mWidth, mHeight) / 6;
    mPaint.setColor(0xFFFEC336);
    canvas.drawCircle(0, 0, radius, mPaint);

    Xfermode oldMode = mPaint.getXfermode();
    if (mXfermode != null) {
        mPaint.setXfermode(mXfermode);
    }

    int size = Math.min(mWidth, mHeight) / 4;
    mPaint.setColor(0xFF5596FF);
    canvas.drawRect(0, 0, size, size, mPaint);

    mPaint.setXfermode(oldMode);

    canvas.restoreToCount(sc);
}
 

import android.graphics.Xfermode; //导入依赖的package包/类
public Bitmap getCircleBitmap(Bitmap bitmap, int n) {
       Bitmap bitmap2 = Bitmap.createBitmap((int)bitmap.getWidth(), (int)bitmap.getHeight(), (Bitmap.Config)Bitmap.Config.ARGB_8888);
       Canvas canvas = new Canvas(bitmap2);
       Paint paint = new Paint();
       Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
       RectF rectF = new RectF(rect);
       paint.setAntiAlias(true);
       paint.setDither(true);
       paint.setFilterBitmap(true);
       canvas.drawARGB(0, 0, 0, 0);
       paint.setColor(-65536);
       canvas.drawOval(rectF, paint);
       paint.setColor(-16776961);
       paint.setStyle(Paint.Style.STROKE);
       paint.setStrokeWidth(4.0f);
       paint.setXfermode((Xfermode)new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
       canvas.drawBitmap(bitmap, rect, rect, paint);
       return bitmap2;
}
 

import android.graphics.Xfermode; //导入依赖的package包/类
/**
 * 画进度内环
 * 
 * @param int template 温度
 * */
private void drawProgressCircle(Canvas canvas) {
	int sc = canvas.saveLayer(0, 0, width, height, null,
			Canvas.MATRIX_SAVE_FLAG | Canvas.CLIP_SAVE_FLAG
					| Canvas.HAS_ALPHA_LAYER_SAVE_FLAG
					| Canvas.FULL_COLOR_LAYER_SAVE_FLAG
					| Canvas.CLIP_TO_LAYER_SAVE_FLAG);
	canvas.drawBitmap(CircleBg3, null, RectfCircle, circlPaint);

	Xfermode xfermode = new PorterDuffXfermode(PorterDuff.Mode.CLEAR);
	Paint circlePaint2 = new Paint();
	circlePaint2.setAntiAlias(true);
	circlePaint2.setXfermode(xfermode);
	
	canvas.drawArc(RectfCircle, startAngle + angle, 360 - angle, true, circlePaint2);
	circlePaint2.setXfermode(null);
	canvas.restoreToCount(sc);
}
 

import android.graphics.Xfermode; //导入依赖的package包/类
private Bitmap MaskBitmap(Bitmap bitmap, Bitmap mask, int size, Xfermode mode) {
    if (null == bitmap || mask == null) {
        return null;
    }
    //定义期望大小的bitmap
    Bitmap dstBmp = Bitmap.createBitmap(size, size, Config.ARGB_8888);
    //定义一个画布
    Canvas canvas = new Canvas(dstBmp);
    //创建一个取消锯齿画笔
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    //定义需要绘制的某图片上的那一部分矩形空间
    Rect src = new Rect(0, 0, mask.getWidth(), mask.getHeight());
    //定义需要将上面的矩形绘制成新的矩形大小
    Rect dst = new Rect(0, 0, size, size);
    //将蒙版图片绘制成imageview本身的大小,这样从大小才会和UE标注的一样大
    canvas.drawBitmap(mask, src, dst, paint);
    //设置两张图片的相交模式
    //至于这个函数介绍参考网址:http://blog.csdn.net/wm111/article/details/7299294
    paint.setXfermode(mode);
    //将src修改为需要添加mask的bitmap大小,因为是要将此bitmap整个添加上蒙版
    src.right = bitmap.getWidth();
    src.bottom = bitmap.getHeight();
    //在已经绘制的mask上叠加bitmap
    canvas.drawBitmap(bitmap, src, dst, paint);
    return dstBmp;
}
 

import android.graphics.Xfermode; //导入依赖的package包/类
private Bitmap MaskBitmap(Bitmap bitmap, Bitmap mask, int size, Xfermode mode) {
    if (null == bitmap || mask == null) {
        return null;
    }
    Bitmap dstBmp = Bitmap.createBitmap(size, size, Config.ARGB_8888);
    Canvas canvas = new Canvas(dstBmp);
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    Rect src = new Rect(0, 0, mask.getWidth(), mask.getHeight());
    Rect dst = new Rect(0, 0, size, size);
    canvas.drawBitmap(mask, src, dst, paint);
    paint.setXfermode(mode);
    src.right = bitmap.getWidth();
    src.bottom = bitmap.getHeight();
    canvas.drawBitmap(bitmap, src, dst, paint);
    return dstBmp;
}
 

import android.graphics.Xfermode; //导入依赖的package包/类
@Override
protected void onDraw(Canvas canvas) {
	
	Drawable maiDrawable = getDrawable();
	if (!isInEditMode() && maiDrawable instanceof BitmapDrawable) {
		Paint paint = ((BitmapDrawable) maiDrawable).getPaint();
        
        Rect bitmapBounds = maiDrawable.getBounds();
        rect.set(bitmapBounds);
        
		int saveCount = canvas.saveLayer(rect, null,
                   Canvas.MATRIX_SAVE_FLAG |
                   Canvas.CLIP_SAVE_FLAG |
                   Canvas.HAS_ALPHA_LAYER_SAVE_FLAG |
                   Canvas.FULL_COLOR_LAYER_SAVE_FLAG |
                   Canvas.CLIP_TO_LAYER_SAVE_FLAG);
		getImageMatrix().mapRect(rect);

        paint.setAntiAlias(true);
        canvas.drawARGB(0, 0, 0, 0);
        final int color = 0xffffffff;
        paint.setColor(color);
        canvas.drawPath(boundPath, paint);

		Xfermode oldMode = paint.getXfermode();
		paint.setXfermode(duffMode);
        super.onDraw(canvas);
        paint.setXfermode(oldMode);
        canvas.restoreToCount(saveCount);
        
        drawHover(canvas);
		drawBorder(canvas);
	} else {
		super.onDraw(canvas);
	}
}
 

import android.graphics.Xfermode; //导入依赖的package包/类
protected void onDraw(Canvas paramCanvas) {
    Drawable localDrawable = getDrawable();
    if (localDrawable == null)
        return;
    try {
        if (this.paint == null) {
            Paint localPaint1 = new Paint();
            this.paint = localPaint1;
            this.paint.setFilterBitmap(false);
            Paint localPaint2 = this.paint;
            Xfermode localXfermode1 = MASK_XFERMODE;
            @SuppressWarnings("unused")
            Xfermode localXfermode2 = localPaint2.setXfermode(localXfermode1);
        }
        float f1 = getWidth();
        float f2 = getHeight();
        int i = paramCanvas.saveLayer(0.0F, 0.0F, f1, f2, null, 31);
        int j = getWidth();
        int k = getHeight();
        localDrawable.setBounds(0, 0, j, k);
        localDrawable.draw(paramCanvas);
        if ((this.mask == null) || (this.mask.isRecycled())) {
            Bitmap localBitmap1 = createMask();
            this.mask = localBitmap1;
        }
        Bitmap localBitmap2 = this.mask;
        Paint localPaint3;
        localPaint3 = this.paint;
        paramCanvas.drawBitmap(localBitmap2, 0.0F, 0.0F, localPaint3);
        paramCanvas.restoreToCount(i);
        return;
    } catch (Exception localException) {
        StringBuilder localStringBuilder = new StringBuilder()
                .append("Attempting to draw with recycled bitmap. View ID = ");
        System.out.println("localStringBuilder==" + localStringBuilder);
    }
}
 

import android.graphics.Xfermode; //导入依赖的package包/类
public void draw(XulDC dc, int x1, int y1, int w1, int h1, float x2, float y2, float w2, float h2, Paint p) {
	dc.save();
	Xfermode xfermode = p.setXfermode(_colorKeyXferMode);
	if (_xulDrawable == null) {
		_xulDrawable = XulDrawable.fromBitmap(_frameImage, "", "");
	}
	dc.drawBitmap(_xulDrawable, x1, y1, w1, h1, x2, y2, w2, h2, p);
	p.setXfermode(xfermode);
	dc.restore();
}
 

import android.graphics.Xfermode; //导入依赖的package包/类
protected void onDraw(Canvas paramCanvas) {
	Drawable localDrawable = getDrawable();
	if (localDrawable == null)
		return;
	try {
		if (this.paint == null) {
			Paint localPaint1 = new Paint();
			this.paint = localPaint1;
			this.paint.setFilterBitmap(false);
			Paint localPaint2 = this.paint;
			Xfermode localXfermode1 = MASK_XFERMODE;
			@SuppressWarnings("unused")
			Xfermode localXfermode2 = localPaint2.setXfermode(localXfermode1);
		}
		float f1 = getWidth();
		float f2 = getHeight();
		int i = paramCanvas.saveLayer(0.0F, 0.0F, f1, f2, null, 31);
		int j = getWidth();
		int k = getHeight();
		localDrawable.setBounds(0, 0, j, k);
		localDrawable.draw(paramCanvas);
		if ((this.mask == null) || (this.mask.isRecycled())) {
			Bitmap localBitmap1 = createMask();
			this.mask = localBitmap1;
		}
		Bitmap localBitmap2 = this.mask;
		Paint localPaint3 = this.paint;
		paramCanvas.drawBitmap(localBitmap2, 0.0F, 0.0F, localPaint3);
		paramCanvas.restoreToCount(i);
		return;
	} catch (Exception localException) {
		StringBuilder localStringBuilder = new StringBuilder()
				.append("Attempting to draw with recycled bitmap. View ID = ");
		System.out.println("localStringBuilder=="+localStringBuilder);
	}
}
 

import android.graphics.Xfermode; //导入依赖的package包/类
@Override
protected void onDraw(Canvas canvas) {
    Drawable myDrawable = getDrawable();
    if (myDrawable!=null && myDrawable instanceof BitmapDrawable && mCornerRadius > 0) {
        Paint paint = ((BitmapDrawable) myDrawable).getPaint();
        final int color = 0xff000000;
        Rect bitmapBounds = myDrawable.getBounds();
        final RectF rectF = new RectF(bitmapBounds);
        int saveCount = canvas.saveLayer(rectF, null,
                Canvas.MATRIX_SAVE_FLAG |
                        Canvas.CLIP_SAVE_FLAG |
                        Canvas.HAS_ALPHA_LAYER_SAVE_FLAG |
                        Canvas.FULL_COLOR_LAYER_SAVE_FLAG |
                        Canvas.CLIP_TO_LAYER_SAVE_FLAG);
        getImageMatrix().mapRect(rectF);

        paint.setAntiAlias(true);
        canvas.drawARGB(0, 0, 0, 0);
        paint.setColor(color);
        canvas.drawRoundRect(rectF, mCornerRadius, mCornerRadius, paint);

        Xfermode oldMode = paint.getXfermode();
        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
        super.onDraw(canvas);
        paint.setXfermode(oldMode);
        canvas.restoreToCount(saveCount);
    } else {
        super.onDraw(canvas);
    }
}
 

import android.graphics.Xfermode; //导入依赖的package包/类
private void clearCanvas(Canvas canvas, Point p) {
    // 将点下面的线清除(前提是父容器必须有设置背景)
    Xfermode xfermode = mPaint.getXfermode();
    int color = mPaint.getColor();
    mPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
    mPaint.setColor(Color.TRANSPARENT);
    canvas.drawCircle(p.x, p.y, mRadius, mPaint);
    mPaint.setXfermode(xfermode);
    mPaint.setColor(color);
}
 

import android.graphics.Xfermode; //导入依赖的package包/类
protected void onDraw(Canvas paramCanvas) {
	Drawable localDrawable = getDrawable();
	if (localDrawable == null)
		return;
	try {
		if (this.paint == null) {
			Paint localPaint1 = new Paint();
			this.paint = localPaint1;
			this.paint.setFilterBitmap(false);
			Paint localPaint2 = this.paint;
			Xfermode localXfermode1 = MASK_XFERMODE;
			@SuppressWarnings("unused")
			Xfermode localXfermode2 = localPaint2.setXfermode(localXfermode1);
		}
		float f1 = getWidth();
		float f2 = getHeight();
		int i = paramCanvas.saveLayer(0.0F, 0.0F, f1, f2, null, Canvas.ALL_SAVE_FLAG);
		int j = getWidth();
		int k = getHeight();
		localDrawable.setBounds(0, 0, j, k);
		localDrawable.draw(paramCanvas);
		if ((this.mask == null) || (this.mask.isRecycled())) {
			Bitmap localBitmap1 = createMask();
			this.mask = localBitmap1;
		}
		Bitmap localBitmap2 = this.mask;
		Paint localPaint3 = this.paint;
		paramCanvas.drawBitmap(localBitmap2, 0.0F, 0.0F, localPaint3);
		paramCanvas.restoreToCount(i);
		return;
	} catch (Exception localException) {
		StringBuilder localStringBuilder = new StringBuilder()
				.append("Attempting to draw with recycled bitmap. View ID = ");
		System.out.println("localStringBuilder=="+localStringBuilder);
	}
}
 

import android.graphics.Xfermode; //导入依赖的package包/类
protected void onDraw(Canvas paramCanvas)
{
	Drawable localDrawable = getDrawable();
	if (localDrawable == null)
		return;
	try
	{
		if (this.paint == null)
		{
			Paint localPaint1 = new Paint();
			this.paint = localPaint1;
			this.paint.setFilterBitmap(false);
			Paint localPaint2 = this.paint;
			Xfermode localXfermode1 = MASK_XFERMODE;
			@SuppressWarnings("unused")
			Xfermode localXfermode2 = localPaint2.setXfermode(localXfermode1);
		}
		float f1 = getWidth();
		float f2 = getHeight();
		int i = paramCanvas.saveLayer(0.0F, 0.0F, f1, f2, null, 31);
		int j = getWidth();
		int k = getHeight();
		localDrawable.setBounds(0, 0, j, k);
		localDrawable.draw(paramCanvas);
		if ((this.mask == null) || (this.mask.isRecycled()))
		{
			Bitmap localBitmap1 = createMask();
			this.mask = localBitmap1;
		}
		Bitmap localBitmap2 = this.mask;
		Paint localPaint3 = this.paint;
		paramCanvas.drawBitmap(localBitmap2, 0.0F, 0.0F, localPaint3);
		paramCanvas.restoreToCount(i);
		return;
	} catch (Exception localException)
	{
		StringBuilder localStringBuilder = new StringBuilder().append("Attempting to draw with recycled bitmap. View ID = ");
		System.out.println("localStringBuilder==" + localStringBuilder);
	}
}
 

import android.graphics.Xfermode; //导入依赖的package包/类
@Override
public void draw(@NonNull Rect outRect, @NonNull Canvas canvas, CharSequence text, @IntRange(from = 0) int start, @IntRange(from = 0) int end, float x, int top, int y, int bottom, @NonNull Paint paint) {
    if (bitmap == null) {
        bitmap = Bitmap.createBitmap(frame.right - frame.left, frame.bottom - frame.top, Bitmap.Config.ARGB_8888);
        bitmapCanvas = new Canvas(bitmap);
    }
    bitmapCanvas.drawColor(Color.BLACK, PorterDuff.Mode.CLEAR);
    bitmapCanvas.translate(-x, 0);
    super.draw(outRect, bitmapCanvas, text, start, end, x, top, y, bottom, paint);
    Xfermode oldXfermode = paint.getXfermode();
    paint.setXfermode(this.xfermode);
    srcGroup.draw(outRect, bitmapCanvas, text, start, end, x, top, y, bottom, paint);
    paint.setXfermode(oldXfermode);
    canvas.drawBitmap(bitmap, x, 0, null);
}