得到ACTION_SEND意图的Exif数据（TAG_GPS_LATITUDE） [英] Get Exif data from ACTION_SEND intent (TAG_GPS_LATITUDE)

问题描述

好像这个问题上随处可见，但SO的没有的工作。我送从Android相机的意图，我的应用程序（分享我的Andr​​oid相机拍摄到我的应用程序一个图像）。

It seems like this question is everywhere on SO but nothing is working. I am sending an intent from the Android camera to my app (sharing a image taken with my Android camera to my app).

在我的 framgent ：

// ...
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = null;

    Intent intent = getActivity().getIntent();
    String action = intent.getAction();
    String type = intent.getType();
    if (Intent.ACTION_SEND.equals(action) && type != null) {
        if ("text/plain".equals(type)) {
        // ...
        } else if (type.startsWith("image/")) {
            Uri imageUri = (Uri) intent.getParcelableExtra(Intent.EXTRA_STREAM);
            if (imageUri != null) {
                Log.v(null, imageUri.getPath());
                try {
                    ExifInterface exif = new ExifInterface(imageUri.getPath());
                    String str = exif.getAttribute(ExifInterface.TAG_GPS_LATITUDE);
                    Log.v(null, "lat "+str);
                } catch (IOException e) {
                    e.printStackTrace();
                }
                // ...
            }
        }
    } else {
        view = inflater.inflate(R.layout.fragment_main, container, false);
        initComponents(view);
        initListeners();
    }
    return view;
}
// ...

Log.v（空，imageUri.getPath（））;打印出 /外部/图像/媒体/ 5670

出现错误： E / jhead的：无法打开'/外部/图像/媒体/ 5670 然后 Log.v（空，纬度+ STR）; 打印出经纬度空

The error appears: E/JHEAD﹕ can't open '/external/images/media/5670' and then Log.v(null, "lat "+str); prints out lat null?

推荐答案

imageUri.getPath（）不返回文件系统路径，因为的在乌里不是一个文件。弱实现了可在Android SDK中提供的不支持从的InputStream ，这是读 ExifInterface 你就需要消耗的乌里可靠，使用 ContentResolver的。

imageUri.getPath() does not return a filesystem path, because a Uri is not a file. The weak implementation of ExifInterface that is supplied in the Android SDK does not support reading in from an InputStream, which is what you would need to consume that Uri reliably, using a ContentResolver.

您可能需要切换到使用其他EXIF库。我使用<一个href=\"https://android.googlesource.com/platform/packages/apps/Mms/+/master/src/com/android/mms/exif/\"相对=nofollow>谷歌的AOSP一个来自于我的CWAC-相机库彩信应用。

You will probably need to switch to using another EXIF library. I am using Google's AOSP one from the Mms app in my CWAC-Camera library.

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