[android] 開啟圖檔

    private Bitmap openPic(String file) {
        if (file == null)
            return null;
        if (DEB_PIC) Log.d(TAG,"openPic() file = " + file);        
        File f = new File(file);
        if (f.exists()) {
            return BitmapFactory.decodeFile(file);
        } else {
            Log.d(TAG,"openPic() "+ file+" not exists");
            return null;
        }    
    }