Merge pull request #17 from superandrew213/master

Use better function to get real path

android/src/main/java/com/reactnative/picker/RealPathUtil.java

@@ -1,66 +1,146 @@
 package com.reactnative.picker;
 
-import android.annotation.SuppressLint;
 import android.content.Context;
-import android.content.CursorLoader;
 import android.database.Cursor;
 import android.net.Uri;
 import android.os.Build;
 import android.provider.DocumentsContract;
 import android.provider.MediaStore;
+import android.content.ContentUris;
+import android.os.Environment;
 
-/**
- * Created by ipusic on 5/18/16.
- */
 public class RealPathUtil {
+  public static String getRealPathFromURI(final Context context, final Uri uri) {
 
-    public static String getRealPathFromURI(Context context, Uri uri) {
-        if (Build.VERSION.SDK_INT < 19)
-            return RealPathUtil.getRealPathFromURI_API11to18(context, uri);
-        else
-            return RealPathUtil.getRealPathFromURI_API19(context, 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];
               }
 
-    @SuppressLint("NewApi")
-    private static String getRealPathFromURI_API19(Context context, Uri uri) {
-        String filePath = "";
-        String wholeID = DocumentsContract.getDocumentId(uri);
-
-        // Split at colon, use second item in the array
-        String id = wholeID.split(":")[1];
-
-        String[] column = {MediaStore.Images.Media.DATA};
-
-        // where id is equal to
-        String sel = MediaStore.Images.Media._ID + "=?";
-
-        Cursor cursor = context.getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
-                column, sel, new String[]{id}, null);
-
-        int columnIndex = cursor.getColumnIndex(column[0]);
-
-        if (cursor.moveToFirst()) {
-            filePath = cursor.getString(columnIndex);
+              // TODO handle non-primary volumes
           }
+          // 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 filePath;
+      }
+      return null;
   }
 
-    private static String getRealPathFromURI_API11to18(Context context, Uri contentUri) {
-        String[] proj = {MediaStore.Images.Media.DATA};
-        String result = null;
 
-        CursorLoader cursorLoader = new CursorLoader(
-                context,
-                contentUri, proj, null, null, null);
-        Cursor cursor = cursorLoader.loadInBackground();
+  /**
+   * @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());
+  }
 
-        if (cursor != null) {
-            int column_index =
-                    cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
-            cursor.moveToFirst();
-            result = cursor.getString(column_index);
+  /**
+   * @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());
   }
-        return result;
+
+  /**
+   * @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());
+  }
+
 }