Add RecyclerViewAdapter

Author: colemancda

Demo/app/src/main/java/com/pureswift/swiftandroid/RecyclerViewAdapter.kt

@@ -0,0 +1,35 @@
+package com.pureswift.swiftandroid
+
+import android.view.View
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView.ViewHolder
+
+class RecyclerViewAdapter(val swiftObject: SwiftObject) :
+    RecyclerView.Adapter<ViewHolder>() {
+
+    class ViewHolder(val view: View, val swiftObject: SwiftObject) : RecyclerView.ViewHolder(view) {
+
+    }
+
+    // Create new views (invoked by the layout manager)
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerViewAdapter.ViewHolder {
+        return onCreateViewHolderSwift(parent, viewType)
+    }
+
+    external fun onCreateViewHolderSwift(parent: ViewGroup, viewType: Int): RecyclerViewAdapter.ViewHolder
+
+    // Replace the contents of a view (invoked by the layout manager)
+    override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
+        onBindViewHolderSwift(holder, position)
+    }
+
+    external fun onBindViewHolderSwift(holder: RecyclerView.ViewHolder, position: Int)
+
+    // Return the size of your dataset (invoked by the layout manager)
+    override fun getItemCount(): Int {
+        return getItemCountSwift()
+    }
+
+    external fun getItemCountSwift(): Int
+}

Demo/app/src/main/swift/RecyclerView.swift

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+//
+//  RecyclerView.swift
+//  SwiftAndroidApp
+//
+//  Created by Alsey Coleman Miller on 6/13/25.
+//
+
+import AndroidKit
+
+@JavaClass("com.pureswift.swiftandroid.RecyclerViewAdapter")
+open class RecyclerViewAdapter: RecyclerView.Adapter<RecyclerView.ViewHolder> {
+    
+    @JavaMethod
+    @_nonoverride public convenience init(swiftObject: SwiftObject?, environment: JNIEnvironment? = nil)
+    
+    @JavaMethod
+    func getSwiftObject() -> SwiftObject!
+}
+
+@JavaImplementation("com.pureswift.swiftandroid.RecyclerViewAdapter")
+extension RecyclerViewAdapter {
+    
+    @JavaMethod
+    public func onCreateViewHolderSwift(_ viewGroup: ViewGroup?, _ viewType: Int32) -> RecyclerView.ViewHolder! {
+        callback.onCreateViewHolder(viewGroup, viewType)
+    }
+    
+    @JavaMethod
+    public func onBindViewHolderSwift(_ viewHolder: RecyclerView.ViewHolder?, _ position: Int32) {
+        callback.onBindViewHolder(viewHolder, position)
+    }
+    
+    @JavaMethod
+    public func getItemCountSwift() -> Int32 {
+        callback.getItemCount()
+    }
+}
+
+public extension RecyclerViewAdapter {
+    
+    struct Callback<T> {
+        
+        var onCreateViewHolder: ((ViewGroup, Int32) -> RecyclerView.ViewHolder)?
+        
+        var onBindViewHolder: ((RecyclerViewAdapter.ViewHolder<T>, Int32) -> ())?
+        
+        var getItemCount: () -> Int32 = { return 0 }
+        
+        public init(onCreateViewHolder: ((ViewGroup, Int32) -> RecyclerView.ViewHolder)? = nil, onBindViewHolder: ((RecyclerView.ViewHolder, Int32) -> Void)? = nil, getItemCount: @escaping () -> Int32) {
+            self.onCreateViewHolder = onCreateViewHolder
+            self.onBindViewHolder = onBindViewHolder
+            self.getItemCount = getItemCount
+        }
+    }
+    
+    convenience init(_ callback: Callback, environment: JNIEnvironment? = nil) {
+        let swiftObject = SwiftObject(callback, environment: environment)
+        self.init(swiftObject: swiftObject, environment: environment)
+    }
+    
+    var callback: Callback<T> {
+        get {
+            getSwiftObject().valueObject().value as! Callback
+        }
+        set {
+            getSwiftObject().valueObject().value = newValue
+        }
+    }
+}
+
+extension RecyclerViewAdapter {
+    
+    @JavaClass("com.pureswift.swiftandroid.RecyclerViewAdapter$ViewHolder")
+    open class ViewHolder<T>: RecyclerView.ViewHolder {
+        
+        @JavaMethod
+        @_nonoverride public convenience init(view: AndroidView.View?, swiftObject: SwiftObject?, environment: JNIEnvironment? = nil)
+        
+        @JavaMethod
+        func getSwiftObject() -> SwiftObject!
+    }
+}
+
+public extension RecyclerViewAdapter.ViewHolder {
+    
+    convenience init(_ value: T, view: AndroidView.View?, environment: JNIEnvironment? = nil) {
+        let swiftObject = SwiftObject(value, environment: environment)
+        self.init(view: view, swiftObject: swiftObject, environment: environment)
+    }
+    
+    var value: T {
+        get {
+            getSwiftObject().valueObject().value as! T
+        }
+        set {
+            getSwiftObject().valueObject().value = newValue
+        }
+    }
+}