private Bitmap compressDisplay(String imagePath, int width, int height) {
        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeFile(imagePath, options);

        int outH = options.outHeight;
        int outW = options.outWidth;
        int inSampleSize = 1;

        if (outH > height || outW > width) {
            int halfH = outH / 2;
            int halfW = outW / 2;
            while ((halfH / inSampleSize) > height && (halfW / inSampleSize) > width) {
                inSampleSize *= 2;
            }
        }

        options.inSampleSize = inSampleSize;

        options.inJustDecodeBounds = false;

        int heightRatio = (int) Math.ceil(options.outHeight / (float) height);
        int widthRatio = (int) Math.ceil(options.outWidth / (float) width);

        if (heightRatio > 1 || widthRatio > 1) {
            if (heightRatio > widthRatio) {
                options.inSampleSize = heightRatio;
            } else {
                options.inSampleSize = widthRatio;
            }
        }
        options.inJustDecodeBounds = false;

        return BitmapFactory.decodeFile(imagePath, options);
    }
@param width  must > 0
@param height must > 0
boxing/src/main/java/com/bilibili/boxing/utils/ImageCompressor.java