我正在做多次打电话给 BitmapFactory.de codeFILE（）和 BitmapFactory.de codeResource（），我想指定格式的位图德coded到，如RGB_565或RGBA_8888。
I'm making several calls to BitmapFactory.decodeFile() and BitmapFactory.decodeResource(), and I'd like to specify the format the bitmaps are decoded to, such as RGB_565 or RGBA_8888.
目前，去codeD位图格式似乎取决于输入的图像上。另外，有没有办法到现有的位图转换为特定的格式？
Currently, the decoded bitmap format seems to depend on the incoming image. Alternatively, is there a way to convert an existing bitmap to a specific format?
的原因，这是非常重要的是，当我试图去$ C C使用 jnigraphics ，一些图像返回到图像的 AndroidBitmapFormat ANDROID_BITMAP_FORMAT_NONE ，我以为是没用的。有没有人有更深入地了解为什么格式是没有任何已知的价值？发生这种情况时，内置的影像选择器可正确显示被取消codeD这样的图像，所以我想必须有一个方法来处理这些问题。
The reason this is important is that when I try to decode the image using jnigraphics, some images return an AndroidBitmapFormat of type ANDROID_BITMAP_FORMAT_NONE, which I assume is useless. Does anyone have more insight into why the format would be none of the known values? When this happens, the built-in image picker correctly displays images that are decoded this way, so I assume there has to be a way to deal with them.
感谢您的输入！
推荐答案
这可能是你在找什么：
BitmapFactory.Options op = new BitmapFactory.Options();
op.inPreferredConfig = Bitmap.Config.ARGB_8888;
bitmap = BitmapFactory.decodeFile(path, op);
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