From 5a6750337868f7c92baa65d2118ac7ecc84f6010 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian.dold@gmail.com>
Date: Tue, 16 Apr 2019 11:36:36 +0200
Subject: JNI templates

---
 library/src/main/AndroidManifest.xml      |  7 +++++
 library/src/main/cpp/CMakeLists.txt       | 15 ++++++++++
 library/src/main/cpp/akono-jni.c          | 47 +++++++++++++++++++++++++++++++
 library/src/main/kotlin/akono/AkoniJni.kt | 11 ++++++++
 library/src/main/kotlin/akono/Library.kt  | 10 +++++++
 5 files changed, 90 insertions(+)
 create mode 100644 library/src/main/AndroidManifest.xml
 create mode 100644 library/src/main/cpp/CMakeLists.txt
 create mode 100644 library/src/main/cpp/akono-jni.c
 create mode 100644 library/src/main/kotlin/akono/AkoniJni.kt
 create mode 100644 library/src/main/kotlin/akono/Library.kt

(limited to 'library/src/main')

diff --git a/library/src/main/AndroidManifest.xml b/library/src/main/AndroidManifest.xml
new file mode 100644
index 00000000..3a8d4915
--- /dev/null
+++ b/library/src/main/AndroidManifest.xml
@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="net.taler.akono">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    
+</manifest>
diff --git a/library/src/main/cpp/CMakeLists.txt b/library/src/main/cpp/CMakeLists.txt
new file mode 100644
index 00000000..b2983d0b
--- /dev/null
+++ b/library/src/main/cpp/CMakeLists.txt
@@ -0,0 +1,15 @@
+cmake_minimum_required(VERSION 3.4.1)
+
+add_library(akono-jni SHARED
+            akono-jni.c)
+
+add_library(v8 STATIC IMPORTED)
+set_target_properties(v8 PROPERTIES IMPORTED_LOCATION
+    ${distribution_DIR}/gperf/lib/${ANDROID_ABI}/libgperf.so)
+
+
+# Include libraries needed for hello-jni lib
+target_link_libraries(akono-jni
+                      android
+                      log)
+
diff --git a/library/src/main/cpp/akono-jni.c b/library/src/main/cpp/akono-jni.c
new file mode 100644
index 00000000..49777431
--- /dev/null
+++ b/library/src/main/cpp/akono-jni.c
@@ -0,0 +1,47 @@
+#include <string.h>
+#include <jni.h>
+
+/* This is a trivial JNI example where we use a native method
+ * to return a new VM String. See the corresponding Java source
+ * file located at:
+ *
+ *   hello-jni/app/src/main/java/com/example/hellojni/HelloJni.java
+ */
+JNIEXPORT jstring JNICALL
+Java_akono_AkonoJni_stringFromJNI( JNIEnv* env,
+                                                  jobject thiz )
+{
+#if defined(__arm__)
+    #if defined(__ARM_ARCH_7A__)
+    #if defined(__ARM_NEON__)
+      #if defined(__ARM_PCS_VFP)
+        #define ABI "armeabi-v7a/NEON (hard-float)"
+      #else
+        #define ABI "armeabi-v7a/NEON"
+      #endif
+    #else
+      #if defined(__ARM_PCS_VFP)
+        #define ABI "armeabi-v7a (hard-float)"
+      #else
+        #define ABI "armeabi-v7a"
+      #endif
+    #endif
+  #else
+   #define ABI "armeabi"
+  #endif
+#elif defined(__i386__)
+#define ABI "x86"
+#elif defined(__x86_64__)
+#define ABI "x86_64"
+#elif defined(__mips64)  /* mips64el-* toolchain defines __mips__ too */
+#define ABI "mips64"
+#elif defined(__mips__)
+#define ABI "mips"
+#elif defined(__aarch64__)
+#define ABI "arm64-v8a"
+#else
+#define ABI "unknown"
+#endif
+
+    return (*env)->NewStringUTF(env, "Hello from JNI !  Compiled with ABI " ABI ".");
+}
diff --git a/library/src/main/kotlin/akono/AkoniJni.kt b/library/src/main/kotlin/akono/AkoniJni.kt
new file mode 100644
index 00000000..d3bc7a72
--- /dev/null
+++ b/library/src/main/kotlin/akono/AkoniJni.kt
@@ -0,0 +1,11 @@
+package akono;
+
+class AkonoJni {
+  external fun stringFromJNI(): String;
+
+  companion object {
+    init {
+      System.loadLibrary("akono-jni")
+    }
+  }
+}
diff --git a/library/src/main/kotlin/akono/Library.kt b/library/src/main/kotlin/akono/Library.kt
new file mode 100644
index 00000000..920648fd
--- /dev/null
+++ b/library/src/main/kotlin/akono/Library.kt
@@ -0,0 +1,10 @@
+/*
+ * This Kotlin source file was generated by the Gradle 'init' task.
+ */
+package akono
+
+class Library {
+    fun someLibraryMethod(): Boolean {
+        return true
+    }
+}
-- 
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