Wie bekomme ich Dateipfad auf Android?

Question

Ich bin noob in Android, meine Frage ist, wie man echten Pfad der Datei in Android bekommen?

I Absicht bin mit Datei zu wählen, hier ist der Codes:

Intent intent = new Intent(); 
intent.setType("*/*"); 
intent.setAction(Intent.ACTION_GET_CONTENT); 
startActivityForResult(intent, PICKFILE_RESULT_CODE); 

protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
    //super.onActivityResult(requestCode, resultCode, data); 
    switch(requestCode){ 
     case PICKFILE_RESULT_CODE: 
      if(resultCode == RESULT_OK){ 
       String path = data.getData().getPath(); 
       Log.d("File Location", path); 
      break; 
    } 
} 

aber das Ergebnis ist wie "/ extern/images/media/1387"

Ich erwarte, dass ist wie/sdcard/

Ordner/file.ext

Answer 1

Dies ist Was Grundsätzlich Every One Do

Uri selectedImageURI = data.getData(); 
imageFile = new File(getRealPathFromURI(selectedImageURI)); 

Verwenden Sie diese Methode RealPath

private String getRealPathFromURI(Uri contentURI) { 
String result; 
Cursor cursor = getContentResolver().query(contentURI, null, null, null, null); 
if (cursor == null) { // Source is Dropbox or other similar local file path 
    result = contentURI.getPath(); 
} else { 
    cursor.moveToFirst(); 
    int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA); 
    result = cursor.getString(idx); 
    cursor.close(); 
} 
return result; 

}

Schließen Cursor am Ende für eine bessere Purformance

Answer 2

public class GetFilePathFromDevice { 
    /** 
    * Get file path from URI 
    * 
    * @param context context of Activity 
    * @param uri  uri of file 
    * @return path of given URI 
    */ 

    @TargetApi(Build.VERSION_CODES.KITKAT) 
    public static String getPath(final Context context, final Uri uri) { 
     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; 
    } 

    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; 
    } 

    public static boolean isExternalStorageDocument(Uri uri) { 
     return "com.android.externalstorage.documents".equals(uri.getAuthority()); 
    } 

    public static boolean isDownloadsDocument(Uri uri) { 
     return "com.android.providers.downloads.documents".equals(uri.getAuthority()); 
    } 

    public static boolean isMediaDocument(Uri uri) { 
     return "com.android.providers.media.documents".equals(uri.getAuthority()); 
    } 

    public static boolean isGooglePhotosUri(Uri uri) { 
     return "com.google.android.apps.photos.content".equals(uri.getAuthority()); 
    }