[Android]載入外部.9圖片

標籤：android .9   ninepath   drawable   

1. 製作.9.png圖片

2. 編譯製作好的圖片

3. NinePathDrawable解析:

   
   

4.  public static Drawable decodeStream(Resources resources, InputStream is, Options options) throws IOException{        Bitmap bitmap = BitmapFactory.decodeStream(is);        byte[] chunks = bitmap.getNinePatchChunk();        boolean isNinePatchChunk = NinePatch.isNinePatchChunk(chunks);        Log.v(TAG, "isNinePatchChunk:"+isNinePatchChunk);        if(!isNinePatchChunk){            return new BitmapDrawable(resources, bitmap);        }else {            Rect padding = new Rect();            padding.left = getInt(chunks, 12);            padding.right = getInt(chunks, 16);            padding.top = getInt(chunks, 20);            padding.bottom = getInt(chunks, 24);            return new NinePatchDrawable(resources, bitmap, chunks, padding, null);        }    }    private static int getInt(byte[] chunk, int from) {        int result = 0;        result = ((result << 8) | (chunk[from + 3] & 0xFF));        result = ((result << 8) | (chunk[from + 2] & 0xFF));        result = ((result << 8) | (chunk[from + 1] & 0xFF));        result = ((result << 8) | (chunk[from + 0] & 0xFF));        return result;    }

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[Android]載入外部.9圖片