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PaulTRPaulTR
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added a demo for controlling LEDs through an Arduino ADK from an Android device
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28 files changed

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‎AndroidArduinoLEDControl/.gitignore

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.gradle
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/local.properties
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/.idea/workspace.xml
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.DS_Store
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/build

‎AndroidArduinoLEDControl/app/.gitignore

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/build

‎AndroidArduinoLEDControl/app/build.gradle

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apply plugin: 'com.android.application'
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android {
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compileSdkVersion 20
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buildToolsVersion "20.0.0"
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defaultConfig {
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applicationId "com.ptrprograms.androidarduinoledcontrol"
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minSdkVersion 16
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targetSdkVersion 20
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versionCode 1
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versionName "1.0"
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}
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buildTypes {
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release {
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runProguard false
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proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
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}
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}
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}
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dependencies {
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compile fileTree(dir: 'libs', include: ['*.jar'])
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}

‎AndroidArduinoLEDControl/app/proguard-rules.pro

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# Add project specific ProGuard rules here.
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# By default, the flags in this file are appended to flags specified
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# in /Applications/Android Studio.app/sdk/tools/proguard/proguard-android.txt
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# You can edit the include path and order by changing the proguardFiles
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# directive in build.gradle.
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#
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# For more details, see
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# http://developer.android.com/guide/developing/tools/proguard.html
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# Add any project specific keep options here:
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# If your project uses WebView with JS, uncomment the following
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# and specify the fully qualified class name to the JavaScript interface
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# class:
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#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
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# public *;
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#}

‎AndroidArduinoLEDControl/app/src/androidTest/java/com/ptrprograms/androidarduinoledcontrol/ApplicationTest.java

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

‎AndroidArduinoLEDControl/app/src/main/AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.ptrprograms.androidarduinoledcontrol" >
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<uses-feature android:name="android.hardware.usb.accessory" />
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<application
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android:allowBackup="true"
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android:icon="@drawable/ic_launcher"
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android:label="@string/app_name"
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android:theme="@style/AppTheme" >
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<activity
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android:name=".MainActivity"
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android:label="@string/app_name" >
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<intent-filter>
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<action android:name="android.hardware.usb.action.USB_ACCESSORY_ATTACHED" />
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</intent-filter>
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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<meta-data android:name="android.hardware.usb.action.USB_ACCESSORY_ATTACHED"
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android:resource="@xml/accessories" />
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</activity>
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</application>
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</manifest>

‎AndroidArduinoLEDControl/app/src/main/java/com/ptrprograms/androidarduinoledcontrol/LEDControlFragment.java

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package com.ptrprograms.androidarduinoledcontrol;
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import android.app.Fragment;
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import android.app.PendingIntent;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.hardware.usb.UsbAccessory;
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import android.hardware.usb.UsbManager;
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import android.os.Bundle;
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import android.os.ParcelFileDescriptor;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.SeekBar;
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import android.widget.TextView;
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import android.widget.Toast;
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import java.io.FileDescriptor;
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import java.io.FileOutputStream;
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import java.io.IOException;
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/**
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* Created by Paul Trebilcox-Ruiz on 7/27/14.
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*/
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public class LEDControlFragment extends Fragment implements SeekBar.OnSeekBarChangeListener {
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private static final String EXTRA_ACCESSORY = "extra_accessory";
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private static final String ACTION_USB_PERMISSION = "com.ptrprograms.androidarduinoledcontrol.action.USB_PERMISSION";
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private UsbManager mUsbManager;
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private UsbAccessory mUsbAccessory;
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private PendingIntent mPermissionIntent;
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private boolean mPermissionRequestPending;
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private ParcelFileDescriptor mFileDescriptor;
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private FileOutputStream mOutputStream;
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private TextView mRedLEDValueTV;
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private TextView mGreenLEDValueTV;
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private TextView mBlueLEDValueTV;
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private SeekBar mRedLEDSeekBar;
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private SeekBar mGreenLEDSeekBar;
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private SeekBar mBlueLEDSeekBar;
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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mUsbManager = (UsbManager) getActivity().getSystemService( Context.USB_SERVICE );
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mPermissionIntent = PendingIntent.getBroadcast( getActivity(), 0, new Intent( ACTION_USB_PERMISSION ), 0 );
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IntentFilter filter = new IntentFilter( ACTION_USB_PERMISSION );
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filter.addAction( UsbManager.ACTION_USB_ACCESSORY_DETACHED );
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getActivity().registerReceiver( mUsbReceiver, filter );
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if( savedInstanceState != null && savedInstanceState.containsKey( EXTRA_ACCESSORY ) ) {
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mUsbAccessory = savedInstanceState.getParcelable( EXTRA_ACCESSORY );
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openAccessory( mUsbAccessory );
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}
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setRetainInstance( true );
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}
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@Override
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public View onCreateView( LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState ) {
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View view = inflater.inflate( R.layout.fragment_main, container );
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mRedLEDValueTV = (TextView) view.findViewById( R.id.red_led_value );
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mRedLEDSeekBar = (SeekBar) view.findViewById( R.id.red_led_seek_bar );
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mRedLEDSeekBar.setOnSeekBarChangeListener( this );
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mGreenLEDValueTV = (TextView) view.findViewById( R.id.green_led_value );
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mGreenLEDSeekBar = (SeekBar) view.findViewById( R.id.green_led_seek_bar );
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mGreenLEDSeekBar.setOnSeekBarChangeListener( this );
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mBlueLEDValueTV = (TextView) view.findViewById( R.id.blue_led_value );
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mBlueLEDSeekBar = (SeekBar) view.findViewById( R.id.blue_led_seek_bar );
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mBlueLEDSeekBar.setOnSeekBarChangeListener( this );
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mRedLEDValueTV.setText( String.valueOf( mRedLEDSeekBar.getProgress() ) );
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mGreenLEDValueTV.setText( String.valueOf( mGreenLEDSeekBar.getProgress() ) );
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mBlueLEDValueTV.setText( String.valueOf( mBlueLEDSeekBar.getProgress() ) );
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return view;
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}
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private void openAccessory(UsbAccessory accessory) {
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if( accessory == null )
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return;
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mFileDescriptor = mUsbManager.openAccessory( accessory );
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if (mFileDescriptor != null ) {
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mUsbAccessory = accessory;
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FileDescriptor fileDescriptor = mFileDescriptor.getFileDescriptor();
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mOutputStream = new FileOutputStream( fileDescriptor );
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}
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}
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@Override
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public void onResume() {
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super.onResume();
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if( mOutputStream != null ) {
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return;
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}
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UsbAccessory[] accessories = mUsbManager.getAccessoryList();
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UsbAccessory accessory = ( accessories == null ? null : accessories[0] );
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if( accessory != null ) {
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if( mUsbManager.hasPermission( accessory ) ) {
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openAccessory( accessory );
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} else {
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synchronized( mUsbReceiver ) {
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if( !mPermissionRequestPending ) {
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mUsbManager.requestPermission( accessory, mPermissionIntent );
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mPermissionRequestPending = true;
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}
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}
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}
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}
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}
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@Override
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public void onPause() {
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super.onPause();
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closeAccessory();
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}
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@Override
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public void onDestroy() {
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getActivity().unregisterReceiver( mUsbReceiver );
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super.onDestroy();
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}
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private void closeAccessory() {
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try {
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if( mFileDescriptor != null ) {
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mFileDescriptor.close();
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}
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} catch ( IOException e ) {
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} finally {
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mFileDescriptor = null;
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mUsbAccessory = null;
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}
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}
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@Override
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public void onSaveInstanceState( Bundle outState ) {
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super.onSaveInstanceState( outState );
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outState.putParcelable( EXTRA_ACCESSORY, mUsbAccessory );
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}
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private void writeToArduin( byte LEDNum, int value ) {
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byte[] buffer = new byte[2];
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if( value > 255 ) {
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value = 255;
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} else if( value < 0 ) {
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value = 0;
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}
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buffer[0] = LEDNum;
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buffer[1] = (byte) value;
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if( mOutputStream != null ) {
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try {
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mOutputStream.write( buffer );
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} catch( IOException e ) {
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Toast.makeText( getActivity(), "Something went wrong when writing to the Arduino", Toast.LENGTH_LONG ).show();
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}
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}
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}
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@Override
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public void onProgressChanged(SeekBar seekBar, int i, boolean b) {
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switch( seekBar.getId() ) {
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case R.id.red_led_seek_bar: {
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mRedLEDValueTV.setText( String.valueOf( seekBar.getProgress() ) );
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writeToArduin( (byte) 0, seekBar.getProgress() );
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break;
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}
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case R.id.green_led_seek_bar: {
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mGreenLEDValueTV.setText( String.valueOf( seekBar.getProgress() ) );
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writeToArduin( (byte) 1, seekBar.getProgress() );
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break;
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}
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case R.id.blue_led_seek_bar: {
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mBlueLEDValueTV.setText( String.valueOf( seekBar.getProgress() ) );
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writeToArduin( (byte) 2, seekBar.getProgress() );
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break;
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}
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}
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}
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private final BroadcastReceiver mUsbReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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String action = intent.getAction();
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if( ACTION_USB_PERMISSION.equals( action ) ) {
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UsbAccessory accessory = intent.getParcelableExtra( UsbManager.EXTRA_ACCESSORY );
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if( intent.getBooleanExtra( UsbManager.EXTRA_PERMISSION_GRANTED, false ) ) {
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openAccessory( accessory );
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}
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mPermissionRequestPending = false;
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} else if( UsbManager.ACTION_USB_ACCESSORY_DETACHED.equals( action ) ) {
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UsbAccessory accessory = intent.getParcelableExtra( UsbManager.EXTRA_ACCESSORY );
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if( accessory != null && accessory.equals( mUsbAccessory ) ) {
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closeAccessory();
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}
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}
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}
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};
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@Override
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public void onStartTrackingTouch(SeekBar seekBar) {
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}
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@Override
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public void onStopTrackingTouch(SeekBar seekBar) {
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}
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}

‎AndroidArduinoLEDControl/app/src/main/java/com/ptrprograms/androidarduinoledcontrol/MainActivity.java

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package com.ptrprograms.androidarduinoledcontrol;
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import android.app.Activity;
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import android.os.Bundle;
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/**
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* Created by Paul Trebilcox-Ruiz on 7/27/14.
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*/
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public class MainActivity extends Activity {
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@Override
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protected void onCreate( Bundle savedInstanceState ) {
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super.onCreate( savedInstanceState );
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setContentView( R.layout.activity_main );
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}
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}

‎AndroidArduinoLEDControl/app/src/main/res/drawable-hdpi/ic_launcher.png

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‎AndroidArduinoLEDControl/app/src/main/res/drawable-mdpi/ic_launcher.png

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‎AndroidArduinoLEDControl/app/src/main/res/drawable-xhdpi/ic_launcher.png

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‎AndroidArduinoLEDControl/app/src/main/res/drawable-xxhdpi/ic_launcher.png

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

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<fragment xmlns:android="http://schemas.android.com/apk/res/android"
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android:id="@+id/main_browse_fragment"
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android:name="com.ptrprograms.androidarduinoledcontrol.LEDControlFragment"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:paddingLeft="@dimen/activity_horizontal_margin"
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android:paddingRight="@dimen/activity_horizontal_margin"
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android:paddingTop="@dimen/activity_vertical_margin"
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android:paddingBottom="@dimen/activity_vertical_margin"/>

‎AndroidArduinoLEDControl/app/src/main/res/layout/fragment_main.xml

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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_width="match_parent"
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android:layout_height="match_parent">
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<TextView
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android:id="@+id/red_led_value"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:gravity="center"/>
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<SeekBar
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android:id="@+id/red_led_seek_bar"
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android:max="255"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:layout_below="@id/red_led_value"/>
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<TextView
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android:id="@+id/green_led_value"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:layout_below="@id/red_led_seek_bar"
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android:paddingTop="12dp"
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android:gravity="center"/>
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<SeekBar
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android:id="@+id/green_led_seek_bar"
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android:max="255"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:layout_below="@id/green_led_value"/>
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<TextView
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android:id="@+id/blue_led_value"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:layout_below="@id/green_led_seek_bar"
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android:paddingTop="12dp"
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android:gravity="center"/>
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<SeekBar
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android:id="@+id/blue_led_seek_bar"
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android:max="255"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:layout_below="@id/blue_led_value"/>
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</RelativeLayout>

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