initial

from https://github.com/codepath/android_hello_world ,
commit 088e4499feb6e6cdf0607af2e2f7a595b788bc58

.gitignore

@@ -0,0 +1,59 @@
+# built application files
+*.apk
+*.ap_
+
+# files for the dex VM
+*.dex
+
+# Java class files
+*.class
+
+# generated files
+bin/
+gen/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Eclipse project files
+.classpath
+.project
+
+# Proguard folder generated by Eclipse
+proguard/
+proguard-project.txt
+
+# Intellij project files
+*.iml
+*.ipr
+*.iws
+.idea/
+
+*.pydevproject
+.project
+.metadata
+.gradle
+build/**
+bin/**
+tmp/**
+tmp/**/*
+*.tmp
+*.bak
+*.swp
+*~.nib
+local.properties
+.classpath
+.settings/
+.loadpath
+
+# External tool builders
+.externalToolBuilders/
+
+# Locally stored "Eclipse launch configurations"
+*.launch
+
+# CDT-specific
+.cproject
+
+# PDT-specific
+.buildpath

.travis.yml

@@ -0,0 +1,17 @@
+language: android
+jdk:
+  - oraclejdk8
+sudo: false
+android:
+  components:
+  - tools
+  - platform-tools
+  - build-tools-27.0.3
+  - android-27
+  licenses:
+  - android-sdk-license-.+
+before_install:
+  - yes | sdkmanager "platforms;android-27"
+script:
+- "./gradlew build check --daemon"
+after_failure: "cat $TRAVIS_BUILD_DIR/app/build/outputs/lint-results-debug.xml"

README.md

@@ -0,0 +1,6 @@
+android_hello_world
+===================
+
+Hello World Android App
+
+<img src="http://i.imgur.com/dio0DXF.png" width="450" />

app/build.gradle

@@ -0,0 +1,16 @@
+apply plugin: 'com.android.application'
+
+dependencies {
+    compile fileTree(dir: 'libs', include: '*.jar')
+}
+
+android {
+    compileSdkVersion 27
+    buildToolsVersion "27.0.3"
+
+    defaultConfig {
+        minSdkVersion 19
+        targetSdkVersion 27
+    }
+
+}

app/src/main/AndroidManifest.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="codepath.demos.helloworlddemo"
+    android:versionCode="1"
+    android:versionName="1.0" >
+
+    <application
+        android:allowBackup="true"
+        android:icon="@drawable/ic_launcher"
+        android:label="@string/app_name"
+        android:theme="@style/AppTheme" >
+        <activity
+            android:name="codepath.demos.helloworlddemo.HelloWorldActivity"
+            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>

app/src/main/java/codepath/demos/helloworlddemo/HelloWorldActivity.java

@@ -0,0 +1,22 @@
+package codepath.demos.helloworlddemo;
+
+import android.os.Bundle;
+import android.app.Activity;
+import android.view.Menu;
+
+public class HelloWorldActivity extends Activity {
+
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.activity_hello_world);
+	}
+
+	@Override
+	public boolean onCreateOptionsMenu(Menu menu) {
+		// Inflate the menu; this adds items to the action bar if it is present.
+		getMenuInflater().inflate(R.menu.activity_hello_world, menu);
+		return true;
+	}
+
+}

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

@@ -0,0 +1,15 @@
+<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"
+    tools:context=".HelloWorldActivity" >
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerHorizontal="true"
+        android:layout_centerVertical="true"
+        android:text="@string/hello_world"
+        android:textSize="25sp" />
+
+</RelativeLayout>

app/src/main/res/menu/activity_hello_world.xml

@@ -0,0 +1,9 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android" >
+
+    <item
+        android:id="@+id/menu_settings"
+        android:orderInCategory="100"
+        android:showAsAction="never"
+        android:title="@string/menu_settings"/>
+
+</menu>

app/src/main/res/values-v11/styles.xml

@@ -0,0 +1,11 @@
+<resources>
+
+    <!--
+        Base application theme for API 11+. This theme completely replaces
+        AppBaseTheme from res/values/styles.xml on API 11+ devices.
+    -->
+    <style name="AppBaseTheme" parent="android:Theme.Holo.Light">
+        <!-- API 11 theme customizations can go here. -->
+    </style>
+
+</resources>

app/src/main/res/values-v14/styles.xml

@@ -0,0 +1,12 @@
+<resources>
+
+    <!--
+        Base application theme for API 14+. This theme completely replaces
+        AppBaseTheme from BOTH res/values/styles.xml and
+        res/values-v11/styles.xml on API 14+ devices.
+    -->
+    <style name="AppBaseTheme" parent="android:Theme.Holo.Light.DarkActionBar">
+        <!-- API 14 theme customizations can go here. -->
+    </style>
+
+</resources>

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

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <string name="app_name">HelloWorldDemo</string>
+    <string name="hello_world">Hello world!</string>
+    <string name="menu_settings">Settings</string>
+
+</resources>

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

@@ -0,0 +1,20 @@
+<resources>
+
+    <!--
+        Base application theme, dependent on API level. This theme is replaced
+        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
+    -->
+    <style name="AppBaseTheme" parent="android:Theme.Light">
+        <!--
+            Theme customizations available in newer API levels can go in
+            res/values-vXX/styles.xml, while customizations related to
+            backward-compatibility can go here.
+        -->
+    </style>
+
+    <!-- Application theme. -->
+    <style name="AppTheme" parent="AppBaseTheme">
+        <!-- All customizations that are NOT specific to a particular API-level can go here. -->
+    </style>
+
+</resources>

build.gradle

@@ -0,0 +1,16 @@
+buildscript {
+    repositories {
+        jcenter()
+        google()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.0.1'
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+        google()
+    }
+}

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Tue May 09 20:47:20 CDT 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip