feat(ios): add Logger class (#6284)

core/tauri/mobile/ios-api/Sources/Tauri/Logger.swift

@@ -0,0 +1,46 @@
+import os.log
+import UIKit
+
+/// Wrapper class for os_log function
+public class Logger {
+  private static var _enabled = false
+  public static var enabled: Bool {
+    get {
+      #if DEBUG
+      return true
+      #else
+      return _enabled
+      #endif
+    }
+    set {
+      Logger._enabled = newValue
+    }
+  }
+
+  static func log(_ items: Any..., category: String, type: OSLogType) {
+    if Logger.enabled {
+      var message = ""
+      let last = items.count - 1
+      for (index, item) in items.enumerated() {
+        message += "\(item)"
+        if index != last {
+          message += " "
+        }
+      }
+      let log = OSLog(subsystem: Bundle.main.bundleIdentifier ?? "-", category: category)
+      os_log("%{public}@", log: log, type: type, String(message.prefix(4068)))
+    }
+  }
+
+  public static func debug(_ items: Any..., category: String = "app") {
+    Logger.log(items, category: category, type: OSLogType.debug)
+  }
+
+  public static func info(_ items: Any..., category: String = "app") {
+    Logger.log(items, category: category, type: OSLogType.info)
+  }
+
+  public static func error(_ items: Any..., category: String = "app") {
+    Logger.log(items, category: category, type: OSLogType.error)
+  }
+}