public override void OnBackPressed() { if (App.CurrentFragment is MainFragment) { //if (doubleBackToExitPressedOnce) //{ // FinishAffinity(); // return; //} //this.doubleBackToExitPressedOnce = true; //Toast.MakeText(this, "Jos jednom za izlaz!", ToastLength.Short).Show(); //new Handler().PostDelayed(() => //{ // doubleBackToExitPressedOnce = false; //}, 2000); } else if (App.CurrentFragment is MathFragment || App.CurrentFragment is MathWithAnswersFragment || App.CurrentFragment is ReadingAndWritingFragment) { //FragmentManager.PopBackStack(); PlayFragment pf = new PlayFragment(); FragmentManager.BeginTransaction().Replace(App.fragmentContainer.Id, pf, "play").Commit(); App.CurrentFragment = pf; //MainFragment mf = new MainFragment(); //FragmentManager.BeginTransaction().Replace(App.fragmentContainer.Id, mf, "main_fragment").Commit(); //App.CurrentFragment = mf; } else if (App.CurrentFragment is GuessingImageFragment) { ReadingAndWritingFragment rawf = new ReadingAndWritingFragment(); FragmentManager.BeginTransaction().Replace(App.fragmentContainer.Id, rawf, "reading_and_writing").AddToBackStack(null).Commit(); App.CurrentFragment = rawf; } else if (App.CurrentFragment is PlayFragment || App.CurrentFragment is RecordFragment) { MainFragment mf = new MainFragment(); FragmentManager.BeginTransaction().Replace(App.fragmentContainer.Id, mf, "main_fragment").Commit(); App.CurrentFragment = mf; } }
protected override void OnCreate(Bundle savedInstanceState) { base.OnCreate(savedInstanceState); global::Xamarin.Forms.Forms.Init(this, savedInstanceState); SetContentView(Resource.Layout.ActivityMain); Android.Support.V4.App.FragmentManager fm = SupportFragmentManager; playFragment = (PlayFragment)fm.FindFragmentById(Resource.Layout.FragmentPlay); if (playFragment == null) { playFragment = new PlayFragment(); Android.Support.V4.App.FragmentTransaction ft = fm.BeginTransaction(); ft.Add(Resource.Id.main_container, playFragment); ft.Commit(); } toolbarFragment = (ToolBarFragment)fm.FindFragmentById(Resource.Layout.FragmentToolBar); if (toolbarFragment == null) { toolbarFragment = new ToolBarFragment(); Android.Support.V4.App.FragmentTransaction ft = fm.BeginTransaction(); ft.Add(Resource.Id.toolbar_container, toolbarFragment); ft.Commit(); } chordRecognizer = new ChordRecognizer(); MIDIStyle midiStyle = new MIDIStyle(); midiStyle.LoadStyle("ddd"); mplayer = new MIDIPlayer(/*this,*/ midiStyle); mplayer.OnTactEvent += (object sender, OnTactEventArgs e) => playFragment.SetTempoAndTact(e.CurrentTempo, e.CurrentTact); mplayer.OnChordChangeEvent += () => OnChordChanged(); mplayer.OnSectionChangeEvent += () => OnSectionChanged(); mplayer.Tracks = midiStyle.MidiSection.Tracks; mplayer.Start(); }