SwiftUI Image

前言

xcode 13.3
iOS 15.4

1.创建 Image

如果是创建系统符号Image，可以设置Image的颜色、大小
如果是加载本地图片，则不行

VStack {
   
	//创建系统符号图像。
    Image(systemName: "arkit")
        .foregroundColor(.red)
        .font(.system(size: 50)) //使用font设置系统符号大小
    //创建本地图像。
    Image("turtlerock")
    
    Image("turtlerock")
        .foregroundColor(.red)
        .font(.system(size: 50))
}

1.1 resizable 自动缩放、适配父视图

/// Sets the mode by which SwiftUI resizes an image to fit its space.
/// - Parameters:
/// - capInsets: Inset values that indicate a portion of the image that
/// SwiftUI doesn’t resize.
/// - resizingMode: The mode by which SwiftUI resizes the image.
public func resizable(capInsets: EdgeInsets = EdgeInsets(), resizingMode: Image.ResizingMode = .stretch) -> Image

设置resizable

Image("turtlerock")
    .resizable()

1.2 设置视图填充方式

1.2.1 fill: 图片完全撑满整个视图，保持宽高比

Image("turtlerock")
     .resizable()