first commit

.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
+	<classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>
+	<classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.DEPENDENCIES"/>
+	<classpathentry kind="src" path="gen"/>
+	<classpathentry kind="output" path="bin/classes"/>
+</classpath>

.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>AndroidCPlusPlus</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>com.android.ide.eclipse.adt.PreCompilerBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>com.android.ide.eclipse.adt.ApkBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>com.android.ide.eclipse.adt.AndroidNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

.settings/org.eclipse.jdt.core.prefs

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+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.methodParameters=do not generate
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.6
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.6

AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.androidcplusplus"
+    android:versionCode="1"
+    android:versionName="1.0" >
+
+    <uses-sdk
+        android:minSdkVersion="10"
+        android:targetSdkVersion="10" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@drawable/ic_launcher"
+        android:label="@string/app_name">
+        <activity
+            android:name=".MainActivity"
+            android:label="@string/app_name"
+            android:icon="@drawable/ic_launcher">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

bin/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.androidcplusplus"
+    android:versionCode="1"
+    android:versionName="1.0" >
+
+    <uses-sdk
+        android:minSdkVersion="10"
+        android:targetSdkVersion="10" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@drawable/ic_launcher"
+        android:label="@string/app_name">
+        <activity
+            android:name=".MainActivity"
+            android:label="@string/app_name"
+            android:icon="@drawable/ic_launcher">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

bin/jarlist.cache

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+# cache for current jar dependency. DO NOT EDIT.
+# format is <lastModified> <length> <SHA-1> <path>
+# Encoding is UTF-8

gen/com/example/androidcplusplus/BuildConfig.java

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+/** Automatically generated file. DO NOT MODIFY */
+package com.example.androidcplusplus;
+
+public final class BuildConfig {
+    public final static boolean DEBUG = true;
+}

gen/com/example/androidcplusplus/R.java

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+/* AUTO-GENERATED FILE.  DO NOT MODIFY.
+ *
+ * This class was automatically generated by the
+ * aapt tool from the resource data it found.  It
+ * should not be modified by hand.
+ */
+
+package com.example.androidcplusplus;
+
+public final class R {
+    public static final class attr {
+    }
+    public static final class drawable {
+        public static final int ic_launcher=0x7f020000;
+    }
+    public static final class layout {
+        public static final int activity_main=0x7f030000;
+    }
+    public static final class string {
+        public static final int app_name=0x7f040000;
+    }
+}

jni/Android.mk

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+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := calculator
+LOCAL_C_INCLUDES := ../native/ \
+
+LOCAL_SRC_FILES := \
+../native/calculator.cpp \
+wrapper-jni.cpp \
+
+LOCAL_LDLIBS := -llog
+
+include $(BUILD_SHARED_LIBRARY)

jni/Application.mk

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+APP_PROJECT_PATH := $(call my-dir)
+APP_MODULES      := calculator 
+APP_STL := stlport_static
+APP_ABI := all
+APP_BUILD_SCRIPT := ./Android.mk

jni/wrapper-jni.cpp

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+#include <iostream>
+#include <jni.h>
+#include <calculator.h>
+#include <android/log.h>
+
+using namespace std;
+
+extern "C" {
+    JNIEXPORT jfloat JNICALL Java_com_example_androidcplusplus_Calculator_sum(JNIEnv* env, jobject obj, jfloat a, jfloat b);
+};
+
+jint JNI_OnLoad(JavaVM* vm, void* reserved)
+{
+    JNIEnv* env;
+    if (vm->GetEnv((void**) &env, JNI_VERSION_1_6) != JNI_OK)
+        return -1;
+    return JNI_VERSION_1_6;
+}
+
+JNIEXPORT jfloat JNICALL Java_com_example_androidcplusplus_Calculator_sum(JNIEnv* env, jobject obj, jfloat a, jfloat b)
+{
+    Calculator* calculator = new Calculator();
+    return calculator->sum(a, b);
+}

lint.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<lint>
+</lint>

native/calculator.cpp

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+#include <iostream>
+#include "calculator.h"
+
+float Calculator::sum(float a, float b)
+{
+	return a + b;
+}

native/calculator.h

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+#include <iostream>
+using namespace std;
+
+class Calculator
+{
+	public:
+		float sum(float, float);
+};

proguard-project.txt

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+# To enable ProGuard in your project, edit project.properties
+# to define the proguard.config property as described in that file.
+#
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in ${sdk.dir}/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the ProGuard
+# include property in project.properties.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

project.properties

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+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+#
+# This file must be checked in Version Control Systems.
+#
+# To customize properties used by the Ant build system edit
+# "ant.properties", and override values to adapt the script to your
+# project structure.
+#
+# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
+#proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
+
+# Project target.
+target=android-10

res/layout/activity_main.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical" >
+
+
+</LinearLayout>

res/values/strings.xml

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+<resources>
+
+    <string name="app_name">AndroidCPlusPlus</string>
+
+</resources>

res/values/styles.xml

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+<resources>
+
+
+</resources>

src/com/example/androidcplusplus/Calculator.java

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+package com.example.androidcplusplus;
+
+public class Calculator {
+
+	static{
+		System.loadLibrary("calculator");
+	}
+
+	public native float sum(float a, float b);
+
+}

src/com/example/androidcplusplus/MainActivity.java

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+package com.example.androidcplusplus;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.widget.Toast;
+
+public class MainActivity extends Activity {
+
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(com.example.androidcplusplus.R.layout.activity_main);	
+		runOnUiThread(new Runnable() {
+			@Override
+			public void run() {
+				Toast.makeText(MainActivity.this, ""+new Calculator().sum(1, 2), Toast.LENGTH_LONG).show();
+			}
+		});
+	}
+
+}