从画廊kitkat android中选择图像时检索绝对路径

retrieve absolute path when select image from gallery kitkat android

提问by Pratik

As I am supporting my app to Kitkat version, now in this the way of retrieve file from gallery was different.

由于我支持我的应用程序到 Kitkat 版本，现在从库中检索文件的方式是不同的。

I have preferred this Android Gallery on KitKat returns different Uri for Intent.ACTION_GET_CONTENTfor retrieving file from gallery and successfully work but I required Absolute path of that file, I am getting

我更喜欢KitKat 上的这个Android Gallery 为 Intent.ACTION_GET_CONTENT 返回不同的 Uri 以从画廊检索文件并成功工作，但我需要该文件的绝对路径，我得到

content://com.android.providers.media.documents/document/image:2505

For 19 below version we used uri different by using that I am getting path this way

对于低于 19 的版本，我们使用不同的 uri 使用我以这种方式获取路径

Cursor cursor = this.getContentResolver().query(originalUri, projection, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
String fpath = cursor.getString(column_index);

but in 19 version it will give me null value how to get absolute path of image file which was selected by user.

但是在 19 版本中，它会给我空值如何获取用户选择的图像文件的绝对路径。

Thanks

谢谢

回答by Pratik

Here is one way to access the Absolute path after selecting file.

这是在选择文件后访问绝对路径的一种方法。

After getting data in new URI format for KK(KitKat) like this way

像这样以新的 URI 格式为 KK(KitKat) 获取数据后

content://com.android.providers.media.documents/document/image:2505

Just extract ID of your document

只需提取文档的 ID

if(requestCode == GALLERY_KITKAT_INTENT_CALLED && resultCode == RESULT_OK){

    Uri originalUri = data.getData();

    final int takeFlags = data.getFlags()
                        & (Intent.FLAG_GRANT_READ_URI_PERMISSION
                        | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
    // Check for the freshest data.
    getContentResolver().takePersistableUriPermission(originalUri, takeFlags);

    /* now extract ID from Uri path using getLastPathSegment() and then split with ":"
    then call get Uri to for Internal storage or External storage for media I have used getUri()
    */

    String id = originalUri.getLastPathSegment().split(":")[1]; 
    final String[] imageColumns = {MediaStore.Images.Media.DATA };
    final String imageOrderBy = null;

    Uri uri = getUri();
    String selectedImagePath = "path";

    Cursor imageCursor = managedQuery(uri, imageColumns,
          MediaStore.Images.Media._ID + "="+id, null, imageOrderBy);

    if (imageCursor.moveToFirst()) {
        selectedImagePath = imageCursor.getString(imageCursor.getColumnIndex(MediaStore.Images.Media.DATA));
    }
    Log.e("path",selectedImagePath ); // use selectedImagePath 
}else if() {
      // for older version use existing code here
}

// By using this method get the Uri of Internal/External Storage for Media
private Uri getUri() {
    String state = Environment.getExternalStorageState();
    if(!state.equalsIgnoreCase(Environment.MEDIA_MOUNTED))
        return MediaStore.Images.Media.INTERNAL_CONTENT_URI;

    return MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
}

回答by Dhir Pratap

Pratik's solution helped me alot. Following is the version which works for me in Kitkat 4.4.2. Three things which i changed are
1) Using content resolver to get the path
2) originalUri.getLastPathSegment().split(":")[1] gives me index out of bound so i'm using index 0 instead.Its been working so far
3) Removed takeflags and check for freshest data as we are filtering the cursor with id.

Pratik 的解决方案对我帮助很大。以下是在 Kitkat 4.4.2 中对我有用的版本。我改变的三件事是
1) 使用内容解析器来获取路径
2) originalUri.getLastPathSegment().split(":")[1] 给我的索引越界，所以我使用索引 0。它一直在工作到目前为止
3) 删除了 takeflags 并检查最新数据，因为我们正在使用 id 过滤游标。

try {
        Uri originalUri = data.getData();
        String pathsegment[] = originalUri.getLastPathSegment().split(":");
        String id = pathsegment[0];
        final String[] imageColumns = { MediaStore.Images.Media.DATA };
        final String imageOrderBy = null;

        Uri uri = getUri();
        Cursor imageCursor = activity.getContentResolver().query(uri, imageColumns,
                                MediaStore.Images.Media._ID + "=" + id, null, null);

        if (imageCursor.moveToFirst()) {
            value = imageCursor.getString(imageCursor.getColumnIndex(MediaStore.Images.Media.DATA));
        }

    } catch (Exception e) {
        Toast.makeText(activity, "Failed to get image", Toast.LENGTH_LONG).show();
    }

回答by Erich García

Perfectly working solution:

完美的工作解决方案：

package utils;

/**
 * Created by layer on 4/21/2015.
 */
import android.annotation.TargetApi;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;

public class ImageFilePath {

    /**
     * Method for return file path of Gallery image
     *
     * @param context
     * @param uri
     * @return path of the selected image file from gallery
     */
    @TargetApi(Build.VERSION_CODES.KITKAT)
    public static String getPath(final Context context, final Uri uri) {

        // check here to KITKAT or new version
        final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;

        // DocumentProvider
        if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {

            // ExternalStorageProvider
            if (isExternalStorageDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                if ("primary".equalsIgnoreCase(type)) {
                    return Environment.getExternalStorageDirectory() + "/"
                            + split[1];
                }
            }
            // DownloadsProvider
            else if (isDownloadsDocument(uri)) {

                final String id = DocumentsContract.getDocumentId(uri);
                final Uri contentUri = ContentUris.withAppendedId(
                        Uri.parse("content://downloads/public_downloads"),
                        Long.valueOf(id));

                return getDataColumn(context, contentUri, null, null);
            }
            // MediaProvider
            else if (isMediaDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                Uri contentUri = null;
                if ("image".equals(type)) {
                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                } else if ("video".equals(type)) {
                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                } else if ("audio".equals(type)) {
                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                }

                final String selection = "_id=?";
                final String[] selectionArgs = new String[] { split[1] };

                return getDataColumn(context, contentUri, selection,
                        selectionArgs);
            }
        }
        // MediaStore (and general)
        else if ("content".equalsIgnoreCase(uri.getScheme())) {

            // Return the remote address
            if (isGooglePhotosUri(uri))
                return uri.getLastPathSegment();

            return getDataColumn(context, uri, null, null);
        }
        // File
        else if ("file".equalsIgnoreCase(uri.getScheme())) {
            return uri.getPath();
        }

        return null;
    }

    /**
     * Get the value of the data column for this Uri. This is useful for
     * MediaStore Uris, and other file-based ContentProviders.
     *
     * @param context
     *            The context.
     * @param uri
     *            The Uri to query.
     * @param selection
     *            (Optional) Filter used in the query.
     * @param selectionArgs
     *            (Optional) Selection arguments used in the query.
     * @return The value of the _data column, which is typically a file path.
     */
    public static String getDataColumn(Context context, Uri uri,
                                       String selection, String[] selectionArgs) {

        Cursor cursor = null;
        final String column = "_data";
        final String[] projection = { column };

        try {
            cursor = context.getContentResolver().query(uri, projection,
                    selection, selectionArgs, null);
            if (cursor != null && cursor.moveToFirst()) {
                final int index = cursor.getColumnIndexOrThrow(column);
                return cursor.getString(index);
            }
        } finally {
            if (cursor != null)
                cursor.close();
        }
        return null;
    }

    /**
     * @param uri
     *            The Uri to check.
     * @return Whether the Uri authority is ExternalStorageProvider.
     */
    public static boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri
                .getAuthority());
    }

    /**
     * @param uri
     *            The Uri to check.
     * @return Whether the Uri authority is DownloadsProvider.
     */
    public static boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri
                .getAuthority());
    }

    /**
     * @param uri
     *            The Uri to check.
     * @return Whether the Uri authority is MediaProvider.
     */
    public static boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri
                .getAuthority());
    }

    /**
     * @param uri
     *            The Uri to check.
     * @return Whether the Uri authority is Google Photos.
     */
    public static boolean isGooglePhotosUri(Uri uri) {
        return "com.google.android.apps.photos.content".equals(uri
                .getAuthority());
    }
}

https://github.com/layerlre/Android-Utility-Class/blob/master/utils/ImageFilePath.java

https://github.com/layerlre/Android-Utility-Class/blob/master/utils/ImageFilePath.java

Hope works for you.

希望对你有用。

回答by isuekey

Bitmap bitmap = MediaStore.Images.Media
.getBitmap(getActivity().getContentResolver(), uri);

I hope that this will help you.

我希望这会帮助你。