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SwiftPamphletApp/Resource/Guide/SwiftUI/视觉/SwiftUI-Shadow(ap).md
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| ## `.shadow(.drop(radius:` 前景阴影 | ||
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| ```swift | ||
| struct ContentView: View { | ||
| var body: some View { | ||
| Image(systemName: "film") | ||
| .frame(width: 200, height: 200) | ||
| .background(Color.mint) | ||
| .foregroundStyle(Color.white.shadow(.drop(radius: 1, y: 2.0))) | ||
| .font(.system(size: 80)) | ||
| .overlay { | ||
| VStack { | ||
| Spacer() | ||
| Text("电影") | ||
| .font(.largeTitle) | ||
| .foregroundStyle(Color.white.shadow(.drop(radius: 1, y: 2.0))) | ||
| .padding() | ||
| } | ||
| } | ||
| } | ||
| } | ||
| ``` | ||
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| 以上代码中，我们使用了 `shadow(.drop(radius: y:))` 修饰符为图像和文本添加了阴影效果。这个修饰符接受两个参数：`radius` 和 `y`。`radius` 参数控制阴影的模糊半径，`y` 参数控制阴影的偏移量。 | ||
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| ## 多重阴影，发光效果 | ||
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| ```swift | ||
| struct ContentView: View { | ||
| var body: some View { | ||
| ZStack { | ||
| Rectangle() | ||
| .foregroundStyle(.black) | ||
| Image(systemName: "film") | ||
| .frame(width: 200, height: 200) | ||
| .background(Color.mint) | ||
| .foregroundStyle(Color.white.shadow(.drop(radius: 2, y: 4.0))) | ||
| .shadow(color: .white.opacity(0.3), radius: 100) | ||
| .shadow(color: .white.opacity(0.5), radius: 80) | ||
| .shadow(color: .white.opacity(0.6), radius: 30) | ||
| .shadow(color: .white.opacity(0.7), radius: 10) | ||
| .font(.system(size: 80)) | ||
| .overlay { | ||
| VStack { | ||
| Spacer() | ||
| Text("电影") | ||
| .font(.largeTitle) | ||
| .foregroundStyle(Color.white.shadow(.drop(radius: 2, y: 4.0))) | ||
| .padding() | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| ``` | ||
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