android - 如何从Android相机获取缩略图和图像路径？

Question

这样

Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(i, REQUEST_CODE);

通过这种方式，我在 onActivityResult 中获得了位图表单 Intent ，而不是路径!

Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, mImageUri);
startActivityForResult(intent, REQUEST_CODE);

我可以从 Intent 中获取路径，而不是位图!!，我如何从android相机中获取位图(缩略图)和路径？

Answer 1

从中您可以获取图像路径，并使用该路径创建像这样的缩略图

/**
 * 
 * Returns the given size of the bitmap
 * 
 * @param path
 * @return {@link Bitmap}
 */
private Bitmap getThumbnailBitmap(String path, int thumbnailSize) {
    BitmapFactory.Options bounds = new BitmapFactory.Options();
    bounds.inJustDecodeBounds = true;
    BitmapFactory.decodeFile(path, bounds);
    if ((bounds.outWidth == -1) || (bounds.outHeight == -1)) {
        return null;
    }
    int originalSize = (bounds.outHeight > bounds.outWidth) ? bounds.outHeight
            : bounds.outWidth;
    BitmapFactory.Options opts = new BitmapFactory.Options();
    opts.inSampleSize = originalSize / thumbnailSize;
    return BitmapFactory.decodeFile(path, opts);
}

给出您想要的尺寸