Show on map: everything is handled by one content provider alone.

To avoid issues forwarding a requests from (temporarily) exported content provider to internal content provider only one content provider is used.

src/main/java/de/dennisguse/opentracks/android/ContentResolverWrapper.java

@@ -0,0 +1,40 @@
+package de.dennisguse.opentracks.android;
+
+import android.content.ContentResolver;
+import android.content.ContentValues;
+import android.database.Cursor;
+import android.net.Uri;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+public class ContentResolverWrapper implements IContentResolver {
+
+    private ContentResolver contentResolver;
+
+    public ContentResolverWrapper(ContentResolver contentResolver) {
+        this.contentResolver = contentResolver;
+    }
+
+    @Nullable
+    public Uri insert(@NonNull Uri url, @Nullable ContentValues values) {
+        return contentResolver.insert(url, values);
+    }
+
+    public int bulkInsert(@NonNull Uri url, @NonNull ContentValues[] values) {
+        return contentResolver.bulkInsert(url, values);
+    }
+
+    @Nullable
+    public Cursor query(@NonNull Uri uri, @Nullable String[] projection, @Nullable String selection, @Nullable String[] selectionArgs, @Nullable String sortOrder) {
+        return contentResolver.query(uri, projection, selection, selectionArgs, sortOrder);
+    }
+
+    public int update(@NonNull Uri uri, @Nullable ContentValues values, @Nullable String where, @Nullable String[] selectionArgs) {
+        return contentResolver.update(uri, values, where, selectionArgs);
+    }
+
+    public int delete(@NonNull Uri url, @Nullable String where, @Nullable String[] selectionArgs) {
+        return contentResolver.delete(url, where, selectionArgs);
+    }
+}