feat: 初始化 iOS 远程控制端项目

webrtc_controller_ios/web_rtc_controller_ios/Views/RemoteTouchView.swift

@@ -0,0 +1,98 @@
+import UIKit
+import SwiftUI
+
+/// UIKit 触控捕获视图：将触摸转换为相对坐标（0.0~1.0）的远端输入指令。
+/// 与 Android 端 RemoteTouchView 行为一致：
+/// - 实时转发原始 MotionEvent（DOWN=0 / UP=1 / MOVE=2 / CANCEL=3），远端注入实现"跟手"
+/// - 手指抬起时若判定为滑动（时长 >= 200ms 或位移 >= 2%），额外发送一条 SWIPE 指令
+final class RemoteTouchView: UIView {
+
+    /// Android MotionEvent 动作常量
+    enum MotionAction {
+        static let down: Int32 = 0
+        static let up: Int32 = 1
+        static let move: Int32 = 2
+        static let cancel: Int32 = 3
+    }
+
+    var onMotionEvent: ((Int32, Double, Double) -> Void)?
+    var onSwipe: ((Double, Double, Double, Double, Int64) -> Void)?
+
+    private var startX: Double = 0
+    private var startY: Double = 0
+    private var touchStartTime: TimeInterval = 0
+
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+        isMultipleTouchEnabled = false
+        backgroundColor = .clear
+    }
+
+    required init?(coder: NSCoder) {
+        super.init(coder: coder)
+        isMultipleTouchEnabled = false
+        backgroundColor = .clear
+    }
+
+    private func relativePoint(of touch: UITouch) -> (Double, Double) {
+        let p = touch.location(in: self)
+        let w = max(bounds.width, 1)
+        let h = max(bounds.height, 1)
+        let relX = min(max(Double(p.x / w), 0), 1)
+        let relY = min(max(Double(p.y / h), 0), 1)
+        return (relX, relY)
+    }
+
+    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
+        guard let touch = touches.first else { return }
+        let (x, y) = relativePoint(of: touch)
+        startX = x
+        startY = y
+        touchStartTime = Date().timeIntervalSince1970
+        onMotionEvent?(MotionAction.down, x, y)
+    }
+
+    override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
+        guard let touch = touches.first else { return }
+        let (x, y) = relativePoint(of: touch)
+        onMotionEvent?(MotionAction.move, x, y)
+    }
+
+    override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
+        guard let touch = touches.first else { return }
+        let (x, y) = relativePoint(of: touch)
+        onMotionEvent?(MotionAction.up, x, y)
+
+        let duration = Int64((Date().timeIntervalSince1970 - touchStartTime) * 1000)
+        let dx = abs(x - startX)
+        let dy = abs(y - startY)
+        // 非轻点：补发 SWIPE 高层指令（与 Android 端一致）
+        if !(duration < 200 && dx < 0.02 && dy < 0.02) {
+            onSwipe?(startX, startY, x, y, duration)
+        }
+    }
+
+    override func touchesCancelled(_ touches: Set<UITouch>, with event: UIEvent?) {
+        guard let touch = touches.first else { return }
+        let (x, y) = relativePoint(of: touch)
+        onMotionEvent?(MotionAction.cancel, x, y)
+    }
+}
+
+/// SwiftUI 包装：把 UIKit 触控层嵌入 SwiftUI 视图树
+struct TouchOverlay: UIViewRepresentable {
+    let onMotionEvent: (Int32, Double, Double) -> Void
+    let onSwipe: (Double, Double, Double, Double, Int64) -> Void
+
+    func makeUIView(context: Context) -> RemoteTouchView {
+        let view = RemoteTouchView()
+        view.onMotionEvent = onMotionEvent
+        view.onSwipe = onSwipe
+        return view
+    }
+
+    func updateUIView(_ uiView: RemoteTouchView, context: Context) {
+        uiView.onMotionEvent = onMotionEvent
+        uiView.onSwipe = onSwipe
+    }
+}