bringing in hellojni to wrap the leveldb android setup

Author: cesine

.gitignore

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+# private constants #
+NonPublicConstants.java
+
+.externalToolBuilders
+.cproject
+.project
+.settings
+.classpath
+project.properties
+
+bin
+gen
+obj
+libs
+
+# Compiled source #
+###################
+target
+*.com
+*.class
+*.dll
+*.exe
+#*.o
+#*.so
+
+# Packages #
+############
+# it's better to unpack these files and commit the raw source
+# git has its own built in compression methods
+*.7z
+*.dmg
+*.gz
+*.iso
+*.jar
+*.rar
+*.tar
+*.zip
+
+# Logs and databases #
+######################
+#*.log
+#*.sql
+#*.sqlite
+
+# OS generated files #
+######################
+.DS_Store
+ehthumbs.db
+Icon?
+Thumbs.db
+
+lint.xml
+

AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+      package="com.example.hellojni"
+      android:versionCode="1"
+      android:versionName="1.0">
+    <uses-sdk android:minSdkVersion="3" android:targetSdkVersion="11"/>
+    <application android:label="@string/app_name"
+                 android:debuggable="true">
+        <activity android:name=".HelloJni"
+                  android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+</manifest> 

jni/leveldb_sample.c

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+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * 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.
+ *
+ */
+#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:
+ *
+ *   apps/samples/hello-jni/project/src/com/example/HelloJni/HelloJni.java
+ */
+jstring
+Java_com_example_hellojni_HelloJni_stringFromJNI( JNIEnv* env,
+                                                  jobject thiz )
+{
+    return (*env)->NewStringUTF(env, "Hello from JNI !");
+}

res/values/strings.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">HelloJni</string>
+</resources>

src/com/example/hellojni/HelloJni.java

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+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * 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 com.example.hellojni;
+
+import android.app.Activity;
+import android.widget.TextView;
+import android.os.Bundle;
+
+
+public class HelloJni extends Activity
+{
+    /** Called when the activity is first created. */
+    @Override
+    public void onCreate(Bundle savedInstanceState)
+    {
+        super.onCreate(savedInstanceState);
+
+        /* Create a TextView and set its content.
+         * the text is retrieved by calling a native
+         * function.
+         */
+        TextView  tv = new TextView(this);
+        tv.setText( stringFromJNI() );
+        setContentView(tv);
+    }
+
+    /* A native method that is implemented by the
+     * 'hello-jni' native library, which is packaged
+     * with this application.
+     */
+    public native String  stringFromJNI();
+
+    /* This is another native method declaration that is *not*
+     * implemented by 'hello-jni'. This is simply to show that
+     * you can declare as many native methods in your Java code
+     * as you want, their implementation is searched in the
+     * currently loaded native libraries only the first time
+     * you call them.
+     *
+     * Trying to call this function will result in a
+     * java.lang.UnsatisfiedLinkError exception !
+     */
+    public native String  unimplementedStringFromJNI();
+
+    /* this is used to load the 'hello-jni' library on application
+     * startup. The library has already been unpacked into
+     * /data/data/com.example.HelloJni/lib/libhello-jni.so at
+     * installation time by the package manager.
+     */
+    static {
+        System.loadLibrary("leveldb");
+    }
+}

tests/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- package name must be unique so suffix with "tests" so package loader doesn't ignore us -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.example.HelloJni.tests"
+          android:versionCode="1"
+          android:versionName="1.0">
+    <!-- We add an application tag here just so that we can indicate that
+         this package needs to link against the android.test library,
+         which is needed when building test cases. -->
+    <application>
+        <uses-library android:name="android.test.runner" />
+    </application>
+    <!--
+    This declares that this application uses the instrumentation test runner targeting
+    the package of com.example.HelloJni.  To run the tests use the command:
+    "adb shell am instrument -w com.example.HelloJni.tests/android.test.InstrumentationTestRunner"
+    -->
+    <instrumentation android:name="android.test.InstrumentationTestRunner"
+                     android:targetPackage="com.example.HelloJni"
+                     android:label="Tests for HelloJni"/>
+</manifest>

tests/default.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 use,
+# "build.properties", and override values to adapt the script to your
+# project structure.
+
+# Project target.
+target=android-3

tests/src/com/example/HelloJni/HelloJniTest.java

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+package com.example.HelloJni;
+
+import android.test.ActivityInstrumentationTestCase;
+
+/**
+ * This is a simple framework for a test of an Application.  See
+ * {@link android.test.ApplicationTestCase ApplicationTestCase} for more information on
+ * how to write and extend Application tests.
+ * <p/>
+ * To run this test, you can type:
+ * adb shell am instrument -w \
+ * -e class com.example.HelloJni.HelloJniTest \
+ * com.example.HelloJni.tests/android.test.InstrumentationTestRunner
+ */
+public class HelloJniTest extends ActivityInstrumentationTestCase<HelloJni> {
+
+    public HelloJniTest() {
+        super("com.example.HelloJni", HelloJni.class);
+    }
+
+}