public class DiyToast {
    public static void showToast(Context context, String string, Uri bitmapUri) {
        showToast(context,string,MainActivity.getBitmapFromUri(bitmapUri,context));
    }

    public static void showToast(Context context, String string){
        View toastRoot = LayoutInflater.from(context).inflate(
                R.layout.my_toast, null, false);
        TextView tv = (TextView) toastRoot.findViewById(R.id.TextViewInfo);
        Toast toast = Toast.makeText(context, string, Toast.LENGTH_LONG);// 展示Toast
        toast.setView(toastRoot);
        tv.setText(string);
        toast.show();
    }

    public static void showToast(Context context, String string, final Bitmap bitmap) {
        View toastRoot = LayoutInflater.from(context).inflate(
                R.layout.my_toast, null, false);
        TextView tv = (TextView) toastRoot.findViewById(R.id.TextViewInfo);
        LinearLayout linearLayout =toastRoot.findViewById(R.id.rootLayout);
        Toast toast = Toast.makeText(context, string, Toast.LENGTH_SHORT);// 展示Toast
        toast.setView(toastRoot);
        tv.setText(string);
        tv.setTextColor(getBitmapColorIsDark(bitmap)?Color.WHITE:Color.BLACK);

        int width = bitmap.getWidth();
        int height = bitmap.getHeight();
        // 设置想要的大小
        int newWidth;
        int newHeight;
        if(width>height){
            newWidth = 720;
            newHeight = height*720/width;
        } else {
            newWidth = width*720/height;
            newHeight = 720;
        }

        // 计算缩放比例
        float scaleWidth = ((float) newWidth) / width;
        float scaleHeight = ((float) newHeight) / height;
        Matrix matrix = new Matrix();
        matrix.postScale(scaleWidth, scaleHeight);
        Bitmap mbitmap = Bitmap.createBitmap(toRoundCorner(bitmap,50), 0, 0, width, height, matrix, true);

        Resources resources = context.getResources();
        BitmapDrawable drawable = new BitmapDrawable(resources, mbitmap);

        linearLayout.setBackground(drawable);

        toast.show();
    }


    //http://hautxsh.iteye.com/blog/1495012
    private static Bitmap toRoundCorner(Bitmap bitmap, int pixels) {

        Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(output);

        final int color = 0xff424242;
        final Paint paint = new Paint();
        final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
        final RectF rectF = new RectF(rect);
        final float roundPx = pixels;

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

        paint.setXfermode(new PorterDuffXfermode(android.graphics.PorterDuff.Mode.SRC_IN));
        canvas.drawBitmap(bitmap, rect, rect, paint);

        return output;
    }


    //获取图片字体颜色 黑false 白true
    private static boolean getBitmapColorIsDark (Bitmap bitmap){
        int w = bitmap.getWidth();
        int h = bitmap.getHeight();
        int[] color = new int[5];
        color[0] = bitmap.getPixel(w / 2, h / 2);
        color[1] = bitmap.getPixel(w / 4, h / 4);
        color[2] = bitmap.getPixel(w / 4, h * 3 / 4);
        color[3] = bitmap.getPixel(w * 3 / 4, h / 4);
        color[4] = bitmap.getPixel(w * 3 / 4, h * 3 / 4);
        int c = 0;
        for (int i = 0; i <= 4; i++) {
            if (isDark(color[i])) c++;
            else c--;
        }
        return c >= 0;
    }

    //判断颜色深浅
    private static boolean isDark(int color) {
        Double r,g,b;
        r = (double) Color.red(color);
        g = (double) Color.green(color);
        b = (double) Color.blue(color);
        return isDark(r,g,b);
    }

    /**
     * 根据RGB值判断 深色与浅色
     * @param r
     * @param g
     * @param b
     * @return
     */
    private static boolean isDark(Double r, Double g, Double b){
        return !(r * 0.299 + g * 0.578 + b * 0.114 >= 192);
    }

}