initial commit

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+jni-build/libs/**
+jni-build/obj/**

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 23
+    buildToolsVersion "23.0.2"
+
+    defaultConfig {
+        applicationId "jp.narr.tensorflowmnist"
+        minSdkVersion 18
+        targetSdkVersion 23
+        versionCode 1
+        versionName "1.0"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    testCompile 'junit:junit:4.12'
+    compile 'com.android.support:appcompat-v7:23.1.1'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /Users/miyoshi/Library/Android/sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# 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 *;
+#}

app/src/androidTest/java/jp/narr/tensorflowmnist/ApplicationTest.java

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+package jp.narr.tensorflowmnist;
+
+import android.app.Application;
+import android.test.ApplicationTestCase;
+
+/**
+ * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
+ */
+public class ApplicationTest extends ApplicationTestCase<Application> {
+	public ApplicationTest() {
+		super(Application.class);
+	}
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="jp.narr.tensorflowmnist">
+
+	<application
+		android:allowBackup="true"
+		android:icon="@mipmap/ic_launcher"
+		android:label="@string/app_name"
+		android:supportsRtl="true"
+		android:theme="@style/AppTheme">
+		<activity android:name=".MainActivity">
+			<intent-filter>
+				<action android:name="android.intent.action.MAIN"/>
+
+				<category android:name="android.intent.category.LAUNCHER"/>
+			</intent-filter>
+		</activity>
+	</application>
+
+</manifest>

app/src/main/java/jp/narr/tensorflowmnist/DigitDetector.java

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+/*
+   Copyright 2016 Narrative Nithts Inc. All Rights Reserved.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package jp.narr.tensorflowmnist;
+
+import android.content.Context;
+import android.content.res.AssetManager;
+import android.util.Log;
+
+/**
+ * Handwritten digit detector.
+ * <p/>
+ * Created by miyoshi on 16/01/17.
+ */
+public class DigitDetector {
+	private static final String TAG = "DigitDetector";
+
+	static {
+		System.loadLibrary("tensorflow_mnist");
+	}
+
+	private native int init(AssetManager assetManager, String model);
+
+	public native int detectDigit(int[] pixels);
+
+	public boolean setup(Context context) {
+		AssetManager assetManager = context.getAssets();
+		int ret = init(assetManager, "file:///android_asset/graph.pb");
+		Log.i(TAG, "init ret=" + ret);
+		return ret >= 0;
+	}
+}

app/src/main/java/jp/narr/tensorflowmnist/MainActivity.java

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+/*
+   Copyright 2016 Narrative Nithts Inc. All Rights Reserved.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package jp.narr.tensorflowmnist;
+
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+
+public class MainActivity extends AppCompatActivity {
+	private static final String TAG = "MainActivity";
+
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.activity_main);
+
+		DigitDetector detector = new DigitDetector();
+		boolean ret = detector.setup(this);
+
+		Log.i(TAG, "init ret=" + ret);
+
+		int pixels[] = new int[784];
+
+		int digit = detector.detectDigit(pixels);
+		Log.i(TAG, "digit =" + digit);
+	}
+}

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

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+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+	xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:tools="http://schemas.android.com/tools"
+	android:layout_width="match_parent"
+	android:layout_height="match_parent"
+	android:paddingLeft="@dimen/activity_horizontal_margin"
+	android:paddingRight="@dimen/activity_horizontal_margin"
+	android:paddingTop="@dimen/activity_vertical_margin"
+	android:paddingBottom="@dimen/activity_vertical_margin"
+	tools:context="jp.narr.tensorflowmnist.MainActivity">
+
+	<TextView
+		android:text="Hello World!"
+		android:layout_width="wrap_content"
+		android:layout_height="wrap_content"/>
+</RelativeLayout>

app/src/main/res/values-w820dp/dimens.xml

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+<resources>
+	<!-- Example customization of dimensions originally defined in res/values/dimens.xml
+         (such as screen margins) for screens with more than 820dp of available width. This
+         would include 7" and 10" devices in landscape (~960dp and ~1280dp respectively). -->
+	<dimen name="activity_horizontal_margin">64dp</dimen>
+</resources>

app/src/main/res/values/colors.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+	<color name="colorPrimary">#3F51B5</color>
+	<color name="colorPrimaryDark">#303F9F</color>
+	<color name="colorAccent">#FF4081</color>
+</resources>

app/src/main/res/values/dimens.xml

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+<resources>
+	<!-- Default screen margins, per the Android Design guidelines. -->
+	<dimen name="activity_horizontal_margin">16dp</dimen>
+	<dimen name="activity_vertical_margin">16dp</dimen>
+</resources>

app/src/main/res/values/strings.xml

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

app/src/main/res/values/styles.xml

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+<resources>
+
+	<!-- Base application theme. -->
+	<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+		<!-- Customize your theme here. -->
+		<item name="colorPrimary">@color/colorPrimary</item>
+		<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+		<item name="colorAccent">@color/colorAccent</item>
+	</style>
+
+</resources>

app/src/test/java/jp/narr/tensorflowmnist/ExampleUnitTest.java

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+package jp.narr.tensorflowmnist;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * To work on unit tests, switch the Test Artifact in the Build Variants view.
+ */
+public class ExampleUnitTest {
+	@Test
+	public void addition_isCorrect() throws Exception {
+		assertEquals(4, 2 + 2);
+	}
+}