Handle error when task not found

app/src/main/java/com/todoroo/astrid/activity/MainActivity.java

@@ -79,6 +79,7 @@ import org.tasks.ui.EmptyTaskEditFragment;
 import org.tasks.ui.NavigationDrawerFragment;
 import org.tasks.ui.PriorityControlSet;
 import org.tasks.ui.TaskListViewModel;
+import org.tasks.ui.Toaster;
 
 public class MainActivity extends InjectingAppCompatActivity
     implements OnFilterItemClickedListener,
@@ -115,6 +116,7 @@ public class MainActivity extends InjectingAppCompatActivity
   @Inject LocalBroadcastManager localBroadcastManager;
   @Inject TaskCreator taskCreator;
   @Inject PlayServices playServices;
+  @Inject Toaster toaster;
 
   @BindView(R.id.drawer_layout)
   DrawerLayout drawerLayout;
@@ -245,7 +247,8 @@ public class MainActivity extends InjectingAppCompatActivity
                   task -> {
                     getSupportFragmentManager().executePendingTransactions();
                     onTaskListItemClicked(task);
-                  }));
+                  },
+                  exception -> toaster.longToast(R.string.error_task_not_found)));
     } else if (intent.hasExtra(OPEN_NEW_TASK)) {
       Task task = intent.getParcelableExtra(OPEN_NEW_TASK);
       intent.removeExtra(OPEN_NEW_TASK);

app/src/main/java/org/tasks/ui/Toaster.java

@@ -20,9 +20,16 @@ public class Toaster {
     this.locale = locale;
   }
 
+  public void longToast(@StringRes int resId) {
+    longToast(context.getString(resId));
+  }
+
   public void longToast(@StringRes int resId, int number) {
-    Toast.makeText(context, context.getString(resId, locale.formatNumber(number)), LENGTH_LONG)
-        .show();
+    longToast(context.getString(resId, locale.formatNumber(number)));
+  }
+
+  private void longToast(String text) {
+    Toast.makeText(context, text, LENGTH_LONG).show();
   }
 
   @SuppressWarnings("DeprecatedIsStillUsed")

app/src/main/res/values/strings.xml

@@ -878,4 +878,5 @@ File %1$s contained %2$s.\n\n
   <string name="location_arrived">Arrived at %s</string>
   <string name="location_departed">Departed %s</string>
   <string name="building_notifications">Generating notifications</string>
+  <string name="error_task_not_found">Task not found</string>
 </resources>