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TenzinCHWTenzinCHW
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‎app/.gitignore

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/build

‎app/build.gradle

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apply plugin: 'com.android.application'
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android {
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compileSdkVersion 25
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buildToolsVersion "24.0.2"
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defaultConfig {
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applicationId "com.meow.hanwei.epdandroidworkshop"
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minSdkVersion 21
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targetSdkVersion 25
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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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minifyEnabled 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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testCompile 'junit:junit:4.12'
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compile 'com.android.support:appcompat-v7:25.0.1'
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}

‎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 C:\Users\HanWei\AppData\Local\Android\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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#}

‎app/src/androidTest/java/com/meow/hanwei/epdandroidworkshop/ApplicationTest.java

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package com.meow.hanwei.epdandroidworkshop;
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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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}

‎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.meow.hanwei.epdandroidworkshop">
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<uses-permission android:name="android.permission.BLUETOOTH" />
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<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
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<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
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<application
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:supportsRtl="true"
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android:theme="@style/AppTheme">
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<activity android:name=".MainActivity">
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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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</activity>
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</application>
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</manifest>

‎app/src/main/java/com/meow/hanwei/epdandroidworkshop/MainActivity.java

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package com.meow.hanwei.epdandroidworkshop;
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import android.bluetooth.BluetoothAdapter;
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import android.bluetooth.BluetoothDevice;
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import android.bluetooth.BluetoothSocket;
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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.os.Handler;
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import android.os.Message;
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import android.os.ParcelUuid;
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import android.support.v7.app.AppCompatActivity;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.View;
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import android.widget.AdapterView;
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import android.widget.ArrayAdapter;
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import android.widget.ListView;
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import android.widget.Toast;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.lang.reflect.Method;
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import java.util.ArrayList;
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import java.util.Set;
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import java.util.UUID;
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public class MainActivity extends AppCompatActivity {
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private static final String TAG = "MY_APP_DEBUG_TAG"; // just the Tag that error messages will
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// contain when written to from this app
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private Handler mHandler = new Handler(); // handler that gets info from Bluetooth service
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/**
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* Bluetooth adapter
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*/
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BluetoothAdapter mBluetoothAdapter;
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/**
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* Bluetooth devices
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*/
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Set<BluetoothDevice> pairedDevices; // Set of devices that are paired to phone
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// (i.e. are bonded)
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ArrayList<String> nameList = new ArrayList(); // namelist of paired/in-range devices for adapter
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ArrayAdapter adapter; // adapter for listview
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ListView list; // to display names of devices
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ArrayList<BluetoothDevice> devices = new ArrayList<>();
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private ConnectedThread connectedThread;
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private final BroadcastReceiver mReceiver = 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 (BluetoothDevice.ACTION_FOUND.equals(action)) {
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// Discovery has found a device. Get the BluetoothDevice
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// object and its info from the Intent.
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BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
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String deviceName = device.getName();
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if (!nameList.contains(deviceName)) {
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devices.add(device);
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nameList.add(deviceName);
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adapter.notifyDataSetChanged();
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}
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// String deviceHardwareAddress = device.getAddress(); // MAC address
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}
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}
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};
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@Override
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protected void onDestroy() {
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super.onDestroy();
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// Don't forget to unregister the ACTION_FOUND receiver.
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unregisterReceiver(mReceiver);
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}
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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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// Register for broadcasts when a device is discovered.
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IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
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registerReceiver(mReceiver, filter);
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adapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, nameList);
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list = (ListView) findViewById(R.id.devices);
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list.setAdapter(adapter);
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list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
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@Override
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public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
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if (mBluetoothAdapter.isEnabled()) {
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String devName = (String) list.getItemAtPosition(i);
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for (BluetoothDevice bt :
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devices) {
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if (bt.getName().equals(devName)) {
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connectedThread = new ConnectedThread(bt);
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String meow = "1";
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connectedThread.write(meow.getBytes());
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Toast.makeText(MainActivity.this, "MADE CONNECTION", Toast.LENGTH_LONG).show();
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}
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}
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} else {
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Toast.makeText(MainActivity.this, "Bluetooth is not on", Toast.LENGTH_SHORT).show();
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}
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}
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});
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mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
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try {
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Method getUuidsMethod = BluetoothAdapter.class.getDeclaredMethod("getUuids", null);
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ParcelUuid[] uuids = (ParcelUuid[]) getUuidsMethod.invoke(mBluetoothAdapter, null);
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for (ParcelUuid uuid : uuids) {
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Log.d(TAG, "UUID: " + uuid.getUuid().toString());
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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protected void toggleBT(View view) {
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if (mBluetoothAdapter != null) {
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if (!mBluetoothAdapter.isEnabled()) {
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Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
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startActivityForResult(enableIntent, 0);
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Toast.makeText(getApplicationContext(), "Turned on", Toast.LENGTH_LONG).show();
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} else {
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mBluetoothAdapter.disable();
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Toast.makeText(getApplicationContext(), "Turned off", Toast.LENGTH_LONG).show();
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}
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} else {
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Toast.makeText(getApplicationContext(), "Bluetooth not supported", Toast.LENGTH_LONG).show();
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}
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}
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protected void getPaired(View view) {
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if (mBluetoothAdapter.isEnabled()) {
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pairedDevices = mBluetoothAdapter.getBondedDevices();
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nameList.clear();
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devices.clear();
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for (BluetoothDevice bt : pairedDevices) {
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if (!nameList.contains(bt.getName())) {
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nameList.add(bt.getName());
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adapter.notifyDataSetChanged();
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devices.add(bt);
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System.out.println(bt.getName() + ": ");
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for (ParcelUuid meow :
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bt.getUuids()) {
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System.out.println(meow.getUuid());
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}
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}
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}
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Toast.makeText(getApplicationContext(), "Showing Paired Devices", Toast.LENGTH_SHORT).show();
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} else {
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Toast.makeText(MainActivity.this, "Bluetooth is not on", Toast.LENGTH_SHORT).show();
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}
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}
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protected void discover(View view) {
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if (mBluetoothAdapter.isDiscovering()) {
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boolean discovering = mBluetoothAdapter.cancelDiscovery();
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if (discovering) {
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Toast.makeText(MainActivity.this, "Stopping discovery", Toast.LENGTH_LONG).show();
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} else {
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Toast.makeText(MainActivity.this, "Could not start discovery", Toast.LENGTH_LONG).show();
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}
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} else {
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mBluetoothAdapter.startDiscovery();
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Toast.makeText(MainActivity.this, "Started discovering", Toast.LENGTH_LONG).show();
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}
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}
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private interface MessageConstants {
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int MESSAGE_READ = 0;
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int MESSAGE_WRITE = 1;
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int MESSAGE_TOAST = 2;
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// ... (Add other message types here as needed.)
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}
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private class ConnectedThread extends Thread {
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private final BluetoothSocket mmSocket;
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private final BluetoothDevice mmDevice;
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private final InputStream mmInStream;
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private final OutputStream mmOutStream;
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private byte[] mmBuffer; // mmBuffer store for the stream
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protected ConnectedThread(BluetoothDevice device) {
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// Use a temporary object that is later assigned to mmSocket
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// because mmSocket is final.
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BluetoothSocket tmp = null;
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mmDevice = device;
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try {
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// Get a BluetoothSocket to connect with the given BluetoothDevice.
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// MY_UUID is the app's UUID string.
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// tmp = device.createRfcommSocketToServiceRecord(mmDevice.getUuids()[0].getUuid());
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// This gets the first item from the array returned by getUuids().
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// 00001101 represents the COM/Serial port for bluetooth.
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tmp = mmDevice.createRfcommSocketToServiceRecord(UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"));
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tmp.connect();
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} catch (IOException e) {
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Log.e(TAG, "Socket's create() method failed", e);
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}
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mmSocket = tmp;
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InputStream tmpIn = null;
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OutputStream tmpOut = null;
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// Get the input and output streams; using temp objects because
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// member streams are final.
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try {
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tmpIn = mmSocket.getInputStream();
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} catch (IOException e) {
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Log.e(TAG, "Error occurred when creating input stream", e);
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}
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try {
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tmpOut = mmSocket.getOutputStream();
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} catch (IOException e) {
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Log.e(TAG, "Error occurred when creating output stream", e);
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}
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mmInStream = tmpIn;
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mmOutStream = tmpOut;
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}
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public void run() {
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mmBuffer = new byte[1024];
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int numBytes; // bytes returned from read()
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// Keep listening to the InputStream until an exception occurs.
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while (true) {
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try {
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// Read from the InputStream.
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numBytes = mmInStream.read(mmBuffer);
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// Send the obtained bytes to the UI activity.
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Message readMsg = mHandler.obtainMessage(
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MessageConstants.MESSAGE_READ, numBytes, -1,
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mmBuffer);
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readMsg.sendToTarget();
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} catch (IOException e) {
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Log.d(TAG, "Input stream was disconnected", e);
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break;
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}
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}
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}
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// Call this from the main activity to send data to the remote device.
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protected void write(byte[] msgbytes) {
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try {
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mmOutStream.write(msgbytes); // This is the only call that's actually sending
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// data to the connected bluetooth device
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// Share the sent message with the UI activity.
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Message writtenMsg = mHandler.obtainMessage(
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MessageConstants.MESSAGE_WRITE, -1, -1, mmBuffer);
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writtenMsg.sendToTarget();
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} catch (IOException e) {
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Log.e(TAG, "Error occurred when sending data", e);
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// Send a failure message back to the activity.
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Message writeErrorMsg =
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mHandler.obtainMessage(MessageConstants.MESSAGE_TOAST);
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Bundle bundle = new Bundle();
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bundle.putString("toast",
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"Couldn't send data to the other device");
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writeErrorMsg.setData(bundle);
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mHandler.sendMessage(writeErrorMsg);
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}
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}
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// Call this method from the main activity to shut down the connection.
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protected void cancel() {
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try {
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mmSocket.close();
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} catch (IOException e) {
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Log.e(TAG, "Could not close the connect socket", e);
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}
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}
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}
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}

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