lib/android: intro `NativeActivity::run_on_ui_thread`

[nit.git] / lib / android / activities.nit

diff --git a/lib/android/activities.nit b/lib/android/activities.nit
index ed8e1f6..a457899 100644 (file)
--- a/lib/android/activities.nit
+++ b/lib/android/activities.nit
@@ -40,4 +40,16 @@ extern class NativeActivity in "Java" `{ android.app.Activity `}
 
        # Notify the OS that this activity is done and should be closed
        fun finish in "Java" `{ self.finish(); `}
+
+       # Execute `task.main` on the UI thread when possible
+       fun run_on_ui_thread(task: Task) import Task.main in "Java" `{
+               final int final_task = task;
+               Runnable runnable = new Runnable() {
+                       @Override
+                       public void run() {
+                               Task_main(final_task);
+                       }
+               };
+               self.runOnUiThread(runnable);
+       `}
 end