图片问题

• 图片路径: Uri 转 File

// content://image/...
private File uriToFile(Uri uri) {
    String[] image = {MediaStore.Images.Media.DATA};
    Cursor cursor = managedQuery(uri, image, null, null, null);
    int actualImageColumnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
    cursor.moveToFirst();
    String imgPath = cursor.getString(actualImageColumnIndex);
    return new File(imgPath);
}