FMX形狀組件無法正確顯示在Android平臺上

Question

正如您所見，Windows平臺上的形狀組件正常顯示，非常流暢（包括線條，角落和漸變效果）。

但在Android平臺上，你就會得到一個不能接受的結果：行不再光滑，邊角不能被關閉，梯度變成全黑。

如何發生的？以及如何解決它？

這裏是.fmx文件內容：

object Form1: TForm1 
    Left = 0 
    Top = 0 
    Caption = 'Form1' 
    ClientHeight = 480 
    ClientWidth = 640 
    FormFactor.Width = 320 
    FormFactor.Height = 480 
    FormFactor.Devices = [Desktop] 
    DesignerMasterStyle = 0 
    object RoundRect1: TRoundRect 
    Position.X = 40.000000000000000000 
    Position.Y = 16.000000000000000000 
    Size.Width = 153.000000000000000000 
    Size.Height = 65.000000000000000000 
    Size.PlatformDefault = False 
    Stroke.Color = claMediumslateblue 
    Stroke.Thickness = 8.000000000000000000 
    end 
    object Pie1: TPie 
    Position.X = 32.000000000000000000 
    Position.Y = 96.000000000000000000 
    Size.Width = 153.000000000000000000 
    Size.Height = 129.000000000000000000 
    Size.PlatformDefault = False 
    Stroke.Color = claChocolate 
    Stroke.Thickness = 8.000000000000000000 
    EndAngle = -90.000000000000000000 
    end 
    object Arc1: TArc 
    Position.X = 48.000000000000000000 
    Position.Y = 224.000000000000000000 
    Size.Width = 169.000000000000000000 
    Size.Height = 161.000000000000000000 
    Size.PlatformDefault = False 
    Stroke.Color = claDeeppink 
    Stroke.Thickness = 10.000000000000000000 
    StartAngle = 30.000000000000000000 
    EndAngle = 180.000000000000000000 
    end 
    object Arc2: TArc 
    Position.X = 16.000000000000000000 
    Position.Y = 184.000000000000000000 
    Size.Width = 233.000000000000000000 
    Size.Height = 233.000000000000000000 
    Size.PlatformDefault = False 
    Stroke.Kind = Gradient 
    Stroke.Gradient.Points = < 
     item 
     Color = xFF297E72 
     Offset = 0.000000000000000000 
     end 
     item 
     Color = xFFA6F2BD 
     Offset = 1.000000000000000000 
     end> 
    Stroke.Gradient.StartPosition.X = 0.500000000000000000 
    Stroke.Gradient.StartPosition.Y = 1.000000000000000000 
    Stroke.Gradient.StopPosition.X = 0.499999970197677600 
    Stroke.Gradient.StopPosition.Y = 0.000000000000000000 
    Stroke.Thickness = 20.000000000000000000 
    Stroke.Cap = Round 
    EndAngle = -90.000000000000000000 
    end 
end 

Answer 1

我相信它說的筆畫（線）梯度不要任何東西，但Windows的2D渲染的工作文檔。但是，我無法找到它說的地方。如果你想在Windows版本使用3D，你可以這樣做：

initialization 
FMX.Types.GlobalUseGPUCanvas := True; 

您還可以通過overriding the rendering parameters開啓多重採樣。最後，如果需要，您可以使用native Android component作爲原生繪圖。