Migrate Application to Kotlin

Author: colemancda

Demo/app/src/main/java/com/pureswift/swiftandroid/Application.java

@@ -0,0 +1,29 @@
+package com.pureswift.swiftandroid
+
+import com.example.swift.HelloSubclass
+
+class Application: android.app.Application() {
+
+    init {
+        NativeLibrary.shared()
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        onCreateSwift()
+    }
+
+    private external fun onCreateSwift()
+
+    override fun onTerminate() {
+        super.onTerminate()
+        onTerminateSwift()
+    }
+
+    private external fun onTerminateSwift()
+
+    fun sayHello() {
+        val result = HelloSubclass("Swift").sayHello(17, 25)
+        println("sayHello(17, 25) = $result")
+    }
+}

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

@@ -27,6 +27,8 @@ class NativeLibrary private constructor() {
             System.loadLibrary("SwiftAndroidApp")
         } catch (error: UnsatisfiedLinkError) {
             Log.e("NativeLibrary", "Unable to load native libraries: $error")
+            return
         }
+        Log.d("NativeLibrary", "Loaded Swift library")
     }
 }

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

@@ -8,7 +8,7 @@
 import AndroidKit
 
 @JavaClass("com.pureswift.swiftandroid.Application")
-public class Application: JavaObject {
+public class Application: AndroidApp.Application {
 
     @JavaMethod
     public func sayHello()
@@ -18,17 +18,15 @@ public class Application: JavaObject {
 public extension Application {
 
     @JavaMethod
-    public func onCreate() {
-        //super.onCreate()
+    public func onCreateSwift() {
 
         print("\(#function)")
 
         sayHello()
     }
 
     @JavaMethod
-    public func onTerminate() {
-        //super.onTerminate()
+    public func onTerminateSwift() {
 
         print("\(#function)")
     }