DialogFragment内のフラグメントc＃android

Question

私のDialogFragmentの中に（Googleマップを保持する）フラグメントを追加する際に問題があります。私DialogFragmentの内部私はでframeLayoutこの

<FrameLayout 
     android:id="@+id/fragment" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:name="com.google.android.gms.maps.MapFragment"/> 

DialogFragmentを設定して、マップを追加しているしようとしているC＃のコードのように設定しています。また、クラスでIOnMapReadyCallbackを指定しました。

  using Android.App; 
using Android.OS; 
using Android.Views; 
using Android.Widget; 
using Android.Graphics; 
using Android.Gms.Maps; 
using System; 
using Android.Gms.Maps.Model; 

namespace My_Town_App.Droid 
{ 
    class dialog_preview_busn : DialogFragment 
    { 
     public string gName, gAddress, gNumber, gEmail, gWebsite, gHours, gImage; 
     public int gZip; 
     private GoogleMap gMap; 

     public dialog_preview_busn(string Name, string Address, int Zip, string Number, string Email, string Website, string Hours, string Image) 
     { 
      gName = Name; 
      gAddress = Address; 
      gZip = Zip; 
      gNumber = Number; 
      gEmail = Email; 
      gWebsite = Website; 
      gHours = Hours; 
      gImage = Image; 
      System.Diagnostics.Debug.Write("-----------------"); 
      System.Diagnostics.Debug.Write("dialog_preview_busn"); 
      System.Diagnostics.Debug.Write("-----------------"); 
      System.Diagnostics.Debug.Write("Name: " + Name + " Address: " + Address + " Zip: " + Zip + " Number: " + Number); 
      System.Diagnostics.Debug.Write("Email: " + Email + " Website: " + Website + " Hours: " + Hours + " Image: " + Image); 
      //gOnLogInComplete.Invoke(this, new OnLogInEventArgs(gtxtEmail.Text, gtxtPassword.Text)); 
      //PassedParams.Invoke(this, new PassedParams(user, pass)); 
     } 

     //---------------------------------------- 
     // OnCreate Activity 
     //---------------------------------------- 
     public override void OnActivityCreated(Bundle savedInstanceState) 
     { 
      Dialog.Window.RequestFeature(WindowFeatures.NoTitle); //Set the Title Bar to invisable 
      base.OnActivityCreated(savedInstanceState); 

      TextView txtName = View.FindViewById<TextView>(Resource.Id.txtName); 
      TextView txtAdress = View.FindViewById<TextView>(Resource.Id.txtAddress); 
      TextView txtNumber = View.FindViewById<TextView>(Resource.Id.txtNumber); 
      TextView txtEmail = View.FindViewById<TextView>(Resource.Id.txtEmail); 
      TextView txtWebsite = View.FindViewById<TextView>(Resource.Id.txtWebsite); 
      TextView txtHours = View.FindViewById<TextView>(Resource.Id.txtHours); 
      TextView labHours = View.FindViewById<TextView>(Resource.Id.labHours); 
      ImageView downArrow = View.FindViewById<ImageView>(Resource.Id.downArrow); 
      LinearLayout mapLayout = View.FindViewById<LinearLayout>(Resource.Id.mapLayout); 

      mapLayout.Visibility = ViewStates.Gone; 
      SetUpMap(); 
      downArrow.Click += delegate 
      { 
       System.Diagnostics.Debug.Write("down arrow is working"); 
       if (mapLayout.Visibility == ViewStates.Visible) 
       { 
        downArrow.SetImageResource(Resource.Drawable.menu_down_arrow); 
        mapLayout.Visibility = ViewStates.Gone; 
       } 
       else if (mapLayout.Visibility == ViewStates.Gone) 
       { 
        downArrow.SetImageResource(Resource.Drawable.menu_up_arrow); 
        mapLayout.Visibility = ViewStates.Visible; 
       } 

      }; 

      txtName.Text = gName; 
      txtName.PaintFlags = PaintFlags.UnderlineText; 

      txtAdress.Text = (gAddress + " " + gZip).ToString(); 
      txtNumber.Text = gNumber; 
      txtEmail.Text = gEmail; 
      txtWebsite.Text = gWebsite; 
      string[] aryHours = gHours.Split(','); 
      foreach (string s in aryHours) 
      { 
       txtHours.Text += (s + " ").ToString(); 
      } 
      labHours.PaintFlags = PaintFlags.UnderlineText; 

      Dialog.Window.Attributes.WindowAnimations = Resource.Style.dialog_animation; //set the animation 
     } 

     //---------------------------------------- 
     // OnCreate View 
     //---------------------------------------- 

     public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) 
     { 
      base.OnCreateView(inflater, container, savedInstanceState); 

      var view = inflater.Inflate(Resource.Layout.dialog_preview_busn, container, false); 
      return view; 

     } 

     private void SetUpMap() 
     { 
      if (gMap == null) 
      { 
       FragmentManager.FindFragmentById<MapFragment>(Resource.Id.fragment); 
      } 


      LatLng location = new LatLng(50.897778, 3.013333); 
      CameraPosition.Builder builder = CameraPosition.InvokeBuilder(); 
      builder.Target(location); 
      builder.Zoom(18); 
      builder.Bearing(155); 
      builder.Tilt(65); 
      CameraPosition cameraPosition = builder.Build(); 
      CameraUpdate cameraUpdate = CameraUpdateFactory.NewCameraPosition(cameraPosition); 
      MapFragment mapFrag = (MapFragment)FragmentManager.FindFragmentById<MapFragment>(Resource.Id.fragment); 
      GoogleMap map = mapFrag.Map; 

      if (map != null) 
      { 
       map.MoveCamera(cameraUpdate); 
      } 
     }   

     public void OnMapReady(GoogleMap googleMap) 
     { 
      gMap = googleMap; 
     } 
    } 
} 

これについてのお手伝いをさせていただきます。

Answer 1

あなたの関数 'SetUpMap'は非同期でなければなりません。 あなたの関数 'OnMapReady'はいつ呼び出されましたか？イベントに接続しましたか？ イベントが発生する限り、レイアウトをリロードする必要があります。