Examples with Bitmap android.graphics.Bitmap used on opensource projects

Example 76 with Bitmap

use of android.graphics.Bitmap in project Lazy by l123456789jy.

the class BitmapUtil method getBitmapFromView.

/**
     * 从View获取Bitmap
     *
     * @param view View
     * @return Bitmap
     */
public static Bitmap getBitmapFromView(View view) {
    Bitmap bitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    view.layout(view.getLeft(), view.getTop(), view.getRight(), view.getBottom());
    view.draw(canvas);
    return bitmap;
}

Example 77 with Bitmap

use of android.graphics.Bitmap in project Lazy by l123456789jy.

the class BitmapUtil method lumAndHueAndSaturation.

/**
     * 亮度、色相、饱和度处理
     *
     * @param bitmap          原图
     * @param lumValue        亮度值
     * @param hueValue        色相值
     * @param saturationValue 饱和度值
     * @return 亮度、色相、饱和度处理后的图片
     */
public static Bitmap lumAndHueAndSaturation(Bitmap bitmap, int lumValue, int hueValue, int saturationValue) {
    // 计算出符合要求的饱和度值
    float newSaturationValue = saturationValue * 1.0F / 127;
    // 计算出符合要求的亮度值
    float newlumValue = lumValue * 1.0F / 127;
    // 计算出符合要求的色相值
    float newHueValue = (hueValue - 127) * 1.0F / 127 * 180;
    // 创建一个颜色矩阵并设置其饱和度
    ColorMatrix colorMatrix = new ColorMatrix();
    // 设置饱和度值
    colorMatrix.setSaturation(newSaturationValue);
    // 设置亮度值
    colorMatrix.setScale(newlumValue, newlumValue, newlumValue, 1);
    // 控制让红色区在色轮上旋转的角度
    colorMatrix.setRotate(0, newHueValue);
    // 控制让绿红色区在色轮上旋转的角度
    colorMatrix.setRotate(1, newHueValue);
    // 控制让蓝色区在色轮上旋转的角度
    colorMatrix.setRotate(2, newHueValue);
    // 创建一个画笔并设置其颜色过滤器
    Paint paint = new Paint();
    paint.setColorFilter(new ColorMatrixColorFilter(colorMatrix));
    // 创建一个新的图片并创建画布
    Bitmap newBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);
    Canvas canvas = new Canvas(newBitmap);
    // 将原图使用给定的画笔画到画布上
    canvas.drawBitmap(bitmap, 0, 0, paint);
    return newBitmap;
}

Example 78 with Bitmap

use of android.graphics.Bitmap in project Lazy by l123456789jy.

the class BitmapUtil method getBitmapFromView2.

/**
     * 把一个View的对象转换成bitmap
     *
     * @param view View
     * @return Bitmap
     */
public static Bitmap getBitmapFromView2(View view) {
    view.clearFocus();
    view.setPressed(false);
    // 能画缓存就返回false
    boolean willNotCache = view.willNotCacheDrawing();
    view.setWillNotCacheDrawing(false);
    int color = view.getDrawingCacheBackgroundColor();
    view.setDrawingCacheBackgroundColor(0);
    if (color != 0) {
        view.destroyDrawingCache();
    }
    view.buildDrawingCache();
    Bitmap cacheBitmap = view.getDrawingCache();
    if (cacheBitmap == null) {
        if (DEBUG) {
            Log.e(TAG, "failed getViewBitmap(" + view + ")", new RuntimeException());
        }
        return null;
    }
    Bitmap bitmap = Bitmap.createBitmap(cacheBitmap);
    // Restore the view
    view.destroyDrawingCache();
    view.setWillNotCacheDrawing(willNotCache);
    view.setDrawingCacheBackgroundColor(color);
    return bitmap;
}

Example 79 with Bitmap

use of android.graphics.Bitmap in project Lazy by l123456789jy.

the class BitmapUtil method combineImagesToSameSize.

/**
     * 合并
     * @param bgd 后景Bitmap
     * @param fg 前景Bitmap
     * @return 合成后Bitmap
     */
public static Bitmap combineImagesToSameSize(Bitmap bgd, Bitmap fg) {
    Bitmap bmp;
    int width = bgd.getWidth() < fg.getWidth() ? bgd.getWidth() : fg.getWidth();
    int height = bgd.getHeight() < fg.getHeight() ? bgd.getHeight() : fg.getHeight();
    if (fg.getWidth() != width && fg.getHeight() != height) {
        fg = zoom(fg, width, height);
    }
    if (bgd.getWidth() != width && bgd.getHeight() != height) {
        bgd = zoom(bgd, width, height);
    }
    bmp = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    Paint paint = new Paint();
    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_ATOP));
    Canvas canvas = new Canvas(bmp);
    canvas.drawBitmap(bgd, 0, 0, null);
    canvas.drawBitmap(fg, 0, 0, paint);
    return bmp;
}

Example 80 with Bitmap

use of android.graphics.Bitmap in project Lazy by l123456789jy.

the class BitmapUtil method sunshine.

/**
     * 光照效果处理
     *
     * @param bitmap  原图
     * @param centerX 光源在X轴的位置
     * @param centerY 光源在Y轴的位置
     * @return 光照效果处理后的图片
     */
public static Bitmap sunshine(Bitmap bitmap, int centerX, int centerY) {
    final int width = bitmap.getWidth();
    final int height = bitmap.getHeight();
    Bitmap newBitmap = Bitmap.createBitmap(width, height, Config.RGB_565);
    int pixR = 0;
    int pixG = 0;
    int pixB = 0;
    int pixColor = 0;
    int newR = 0;
    int newG = 0;
    int newB = 0;
    int radius = Math.min(centerX, centerY);
    // 光照强度 100~150
    final float strength = 150F;
    int[] pixels = new int[width * height];
    bitmap.getPixels(pixels, 0, width, 0, 0, width, height);
    int pos = 0;
    for (int i = 1, length = height - 1; i < length; i++) {
        for (int k = 1, len = width - 1; k < len; k++) {
            pos = i * width + k;
            pixColor = pixels[pos];
            pixR = Color.red(pixColor);
            pixG = Color.green(pixColor);
            pixB = Color.blue(pixColor);
            newR = pixR;
            newG = pixG;
            newB = pixB;
            // 计算当前点到光照中心的距离，平面座标系中求两点之间的距离
            int distance = (int) (Math.pow((centerY - i), 2) + Math.pow(centerX - k, 2));
            if (distance < radius * radius) {
                // 按照距离大小计算增加的光照值
                int result = (int) (strength * (1.0 - Math.sqrt(distance) / radius));
                newR = pixR + result;
                newG = pixG + result;
                newB = pixB + result;
            }
            newR = Math.min(255, Math.max(0, newR));
            newG = Math.min(255, Math.max(0, newG));
            newB = Math.min(255, Math.max(0, newB));
            pixels[pos] = Color.argb(255, newR, newG, newB);
        }
    }
    newBitmap.setPixels(pixels, 0, width, 0, 0, width, height);
    return newBitmap;
}