我想从 xamarin.iOS 应用程序访问 Shutter UiButton所以我可以对它进行一些更改,但我找不到它。
所以我尝试在 xcode 中重新创建 UIImagePickerController 项目,我使用此代码找到了它,并且我能够进行更改。xamarin.iOS 是否有不同的视图层次结构?
for (index,v) in self.imagePicker.view.subviews.enumerated()
{
print("layer (index) : (v)")
for (index2,vv) in v.subviews.enumerated()
{
print("layer (index, index2) : (vv)")
for (index3,vvv) in vv.subviews.enumerated()
{
print("layer (index, index2, index3) : (vvv)")
for (index4,vvvv) in vvv.subviews.enumerated()
{
print("layer (index, index2, index3, index4) : (vvvv)")
for (index5,vvvvv) in vvvv.subviews.enumerated()
{
print("layer (index, index2, index3, index4, index5) : (vvvvv)")
for (index6,vvvvvv) in vvvvv.subviews.enumerated()
{
print("layer (index, index2, index3, index4, index5, index6) : (vvvvvv)")
if (vvvvvv as? UIButton != nil)
{
var t = String(describing:type(of:vvvvvv))
if(t == "CUShutterButton")
{
print("is button CUShutterButton")
(vvvvvv as! UIButton).setTitleColor(UIColor.red, for: UIControlState.normal)
(vvvvvv as! UIButton).backgroundColor = UIColor.red
v.frame = CGRect.init(x: 0, y: 0, width: 500, height: 500)
for (vvvvvvv) in vvvvvv.subviews
{
vvvvvvv.backgroundColor = UIColor.red
}
}
}
}
}
}
}
}
}
图片:找不到 vs 中的 UiButton
Xamarin 没有不同的视图层次结构。您的问题出在这些方面:
var t = String(describing:type(of:vvvvvv))
if(t == "CUShutterButton")
我不确定您是如何将其转换为 Xamarin(这也可能会影响结果(,但类类型的字符串描述可能会有所不同。所以你需要列出所有的字符串,找到正确的字符串并在你的if语句中使用它。