Add Chiaki Lib to Android

android/app/CMakeLists.txt

@@ -0,0 +1,5 @@
+
+cmake_minimum_required(VERSION 3.2)
+
+add_library(chiaki-jni SHARED src/main/cpp/chiaki-jni.c)
+target_link_libraries(chiaki-jni chiaki-lib)

android/app/build.gradle

@@ -13,6 +13,23 @@ android {
         targetSdkVersion 29
         versionCode 1
         versionName "1.0"
+        externalNativeBuild {
+            cmake {
+                arguments "-DCHIAKI_ENABLE_TESTS=OFF",
+                        "-DCHIAKI_ENABLE_CLI=OFF",
+                        "-DCHIAKI_ENABLE_GUI=OFF",
+                        "-DCHIAKI_ENABLE_ANDROID=ON",
+                        "-DCHIAKI_LIB_ENABLE_OPUS=OFF",
+                        "-DCHIAKI_LIB_OPENSSL_EXTERNAL_PROJECT=ON",
+                        "-DCMAKE_VERBOSE_MAKEFILE=ON"
+            }
+        }
+    }
+    externalNativeBuild {
+        cmake {
+            version "3.10.2+"
+            path "../../CMakeLists.txt"
+        }
     }
     buildTypes {
         release {

android/app/src/main/cpp/chiaki-jni.c

@@ -0,0 +1,9 @@
+
+#include <jni.h>
+
+#include <chiaki/common.h>
+
+JNIEXPORT jstring JNICALL Java_com_metallic_chiaki_lib_Chiaki_stringFromJNI(JNIEnv* env, jobject thiz)
+{
+    return (*env)->NewStringUTF(env, chiaki_error_string(CHIAKI_ERR_SUCCESS));
+}

android/app/src/main/java/com/metallic/chiaki/MainActivity.kt

@@ -2,6 +2,8 @@ package com.metallic.chiaki
 
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import com.metallic.chiaki.lib.Chiaki
+import kotlinx.android.synthetic.main.activity_main.*
 
 class MainActivity : AppCompatActivity()
 {
@@ -9,5 +11,7 @@ class MainActivity : AppCompatActivity()
 	{
 		super.onCreate(savedInstanceState)
 		setContentView(R.layout.activity_main)
+
+		testTextView.text = Chiaki.stringFromJNI()
 	}
 }

android/app/src/main/java/com/metallic/chiaki/lib/Chiaki.kt

@@ -0,0 +1,14 @@
+package com.metallic.chiaki.lib
+
+class Chiaki
+{
+	companion object
+	{
+		init
+		{
+			System.loadLibrary("chiaki-jni")
+		}
+
+		@JvmStatic external fun stringFromJNI(): String
+	}
+}

android/app/src/main/res/layout/activity_main.xml

@@ -7,6 +7,7 @@
     tools:context=".MainActivity">
 
     <TextView
+        android:id="@+id/testTextView"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="Hello World!"