Xamarin.Forms: 从 HoloCircularProgressBar 中删除方形标记

Question

我正在实施 Xamarin.Forms-Android-jamesmontemagno 的 CustomProgressBar:-

https://blog.xamarin.com/using-custom-controls-in-xamarin-forms-on-android/

如何去掉进度条启动时的方形标记，我不要方形标记

我尝试了 IsMarkerEnabled 属性但它只是从进度条中删除了起始标记点。

Answer 1

您需要修改该控件的 source 以删除方形标记，因为它是硬编码的并且不是可选的。

//draw the thumb square at the correct rotated position
canvas.Save();
canvas.Rotate(progressRotation - 90);
//rotate the square by 45 degrees
canvas.Rotate(45, thumbPosX, thumbPosY);
var rect = new RectF();
rect.Left = thumbPosX - thumbRadius / 3.0f;
rect.Right = thumbPosX + thumbRadius / 3.0f;
rect.Top = thumbPosY - thumbRadius / 3.0f;
rect.Bottom = thumbPosY + thumbRadius / 3.0f;
canvas.DrawRect(rect, thumbColorPaint);
canvas.Restore();

https://github.com/jamesmontemagno/MonoDroidToolkit/blob/master/src/MonoDroidToolkit/HoloCircularProgressBar.cs#L286

Xamarin.Forms: 从 HoloCircularProgressBar 中删除方形标记

Xamarin.Forms: Remove Square marker from HoloCircularProgressBar

c#

xamarin.android

android-progressbar

xamarin

xamarin.forms