GestureRecognizer不能只在ios中工作xamarin.forms

我使用xamarin.forms來做一個應用程序，但由於某種原因，，我改變這個頁面後，我把圖像變大了，並添加了一些網格，gesturerecognizer停止只在iPhone工作，在Android它正常工作...凸輪有人看到這個代碼中的問題？因爲到目前爲止，我不能。由於我需要的模板，我正在編程創建一個頁面。GestureRecognizer不能只在ios中工作xamarin.forms

private void CriaTela() 
    { 
     int row = 0; 
     int column = 0; 

     gridtextura.RowSpacing = 5; 
     gridtextura.ColumnSpacing = 15; 

     lstCategorias = lstCategorias.OrderBy(o => o.nome).ToList(); 

     foreach (var item in lstCategorias) 
     { 
      Grid GridContent = new Grid 
      { 
       RowSpacing = 0, 
       //BackgroundColor = Color.Pink, 
       VerticalOptions = LayoutOptions.FillAndExpand, 
       RowDefinitions = 
      { 
       new RowDefinition { Height = new GridLength(8, GridUnitType.Star) }, 
       new RowDefinition { Height = new GridLength(2, GridUnitType.Star) } 
      } 
      }; 

      var textura = new CachedImage(); 
      textura.Source = "texturaCateg"; 
      textura.HorizontalOptions = LayoutOptions.FillAndExpand; 
      textura.VerticalOptions = LayoutOptions.FillAndExpand; 
      textura.Aspect = Aspect.Fill; 

      GridContent.BindingContext = item; 

      Grid boxColorView = new Grid 
      { 
       RowSpacing = 0, 
       // BackgroundColor = Color.Pink, 
       VerticalOptions = LayoutOptions.FillAndExpand, 
       RowDefinitions = 
      { 
       new RowDefinition { Height = new GridLength(2, GridUnitType.Star) }, 
       new RowDefinition { Height = new GridLength(8, GridUnitType.Star) } 
      } 
      }; 

      boxColorView.Children.Add(new BoxView { Color = Color.FromHex(item.corFundo), VerticalOptions = LayoutOptions.FillAndExpand }, 0, 1); 
      boxColorView.Children.Add(textura, 0, 1); 

      boxColorView.Children.Add(new BoxView { VerticalOptions = LayoutOptions.FillAndExpand }, 0, 0); 
      gridtextura.Children.Add(boxColorView, column, row); 
      gridtextura.Children.Add(GridContent, column, row); 

      //Qual categoria foi escolhida? 
      var CliqueCategoria = new TapGestureRecognizer(); 

      CliqueCategoria.Tapped += (s, e) => 
      { 
       CriaLoading(); 
       var stacklayout = s as Grid; 
       categoriaEscolhida = (Categorias)stacklayout.BindingContext; 
       ChamaProdutos(); 
      }; 

      GridContent.GestureRecognizers.Add(CliqueCategoria); 
      GridContent.BackgroundColor = Color.Green; 
      if (item.imagem != null && item.imagem != "") 
      { 
       int initIndex = item.imagem.IndexOf(','); 
       string image = ""; 

       image = item.imagem.Substring(initIndex + 1); 

       try 
       { 
        GridContent.Children.Add(new CachedImage { Source = ImageSource.FromStream(() => new MemoryStream(Convert.FromBase64String(image))), VerticalOptions = LayoutOptions.FillAndExpand }, 0, 0); 
       } 
       catch (Exception e) 
       { 
        GridContent.Children.Add(new CachedImage { Source = "error.png", VerticalOptions = LayoutOptions.FillAndExpand, HorizontalOptions = LayoutOptions.Fill, HeightRequest = 50, WidthRequest = 50 }, 0, 0); 

       } 
      } 

      GridContent.Children.Add(new Label { Text = item.nome, TextColor = Color.FromHex(item.corTexto), FontSize = Device.GetNamedSize(NamedSize.Micro, typeof(Label)), FontAttributes = FontAttributes.Bold, HorizontalTextAlignment = TextAlignment.Center, VerticalOptions = LayoutOptions.Start, HorizontalOptions = LayoutOptions.CenterAndExpand }, 0, 1); 

      if (column == 0) 
      { 
       column = 1; 
      } 
      else 
      { 
       column = 0; 
       row++; 
      } 

     } 

    }

----------------編輯-------------------

我知道有點更多關於這個問題...因爲現在我有一個圖像是一個按鈕...它正在工作...但現在，它已經超過了其他圖像，然後它不再工作了...但它已經結束了圖像...這是我在這裏發佈的這段代碼的相同案例...我有一個網格在其他..在相同的位置和寬度和長度...和頂部網格不接收水龍頭

來源

2017-09-24 Joyce de Lanna

某些子元素有可能捕獲水龍頭並且不讓它們通過父網格。嘗試在'GridContent'子控件上設置'InputTranparent = true'。 – Ada

更多細節在這裏：https://developer.xamarin.com/api/property/Xamarin.Forms.VisualElement.InputTransparent/ – Ada

所有的childreen應該得到InputTranparent = true，對吧？ –

該問題在xaml ...主網格是在其他網格內...這個其他網格造成的問題...我想也許它結束了點擊次數

來源

2017-10-02 13:44:48

GestureRecognizer不能只在ios中工作xamarin.forms

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