Initial commit

.gitignore

@@ -14,11 +14,14 @@ gen/
 out/
 
 # Gradle files
+.gradle
 .gradle/
 build/
+/build
 
 # Local configuration file (sdk path, etc)
 local.properties
+/local.properties
 
 # Proguard folder generated by Eclipse
 proguard/
@@ -31,10 +34,15 @@ proguard/
 
 # Android Studio captures folder
 captures/
+/captures
 
 # Intellij
 *.iml
+.idea/
 .idea/workspace.xml
+/.idea/libraries
 
 # Keystore files
 *.jks
+
+.DS_Store

README.md

@@ -1,2 +1,4 @@
 # rpi3-wifi-conf-android
 Simple Android application to configure wifi over bluetooth for a Raspberry Pi 3
+
+Used with [this Python script](https://github.com/brendan-myers/rpi3-wifi-conf) running on the target Rasperry Pi.

app/.gitignore

@@ -0,0 +1 @@
+/build

app/build.gradle

@@ -0,0 +1,26 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 23
+    buildToolsVersion "23.0.3"
+
+    defaultConfig {
+        applicationId "io.skygrid.bluetoothtest"
+        minSdkVersion 19
+        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-v7:23.3.0'
+}

app/proguard-rules.pro

@@ -0,0 +1,17 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in C:\Users\Brendan\AppData\Local\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/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="io.brendanmyers.rpiconf">
+
+    <uses-permission android:name="android.permission.BLUETOOTH" />
+    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
+
+    <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/io/brendanmyers/rpiconf/DeviceAdapter.java

@@ -0,0 +1,59 @@
+package io.brendanmyers.rpiconf;
+
+import android.bluetooth.BluetoothDevice;
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+
+public class DeviceAdapter extends ArrayAdapter<BluetoothDevice> {
+
+    private LayoutInflater inflater;
+    private ArrayList<BluetoothDevice> devices;
+
+    public DeviceAdapter(Context context, int resource, ArrayList<BluetoothDevice> devices) {
+        super(context, resource, devices);
+
+        this.devices = devices;
+        inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+    }
+
+    @Override
+    public BluetoothDevice getItem(int position) {
+        return super.getItem(position);
+    }
+
+    @Override
+    public View getDropDownView(int position, View convertView,ViewGroup parent) {
+        View row = inflater.inflate(R.layout.spinner_devices_padded, parent, false);
+
+        BluetoothDevice device = devices.get(position);
+
+        TextView name = (TextView)row.findViewById(R.id.name_label);
+        TextView address = (TextView)row.findViewById(R.id.address_label);
+
+        name.setText(device.getName());
+        address.setText(device.getAddress());
+
+        return row;
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        View row = inflater.inflate(R.layout.spinner_devices, parent, false);
+
+        BluetoothDevice device = devices.get(position);
+
+        TextView name = (TextView)row.findViewById(R.id.name_label);
+        TextView address = (TextView)row.findViewById(R.id.address_label);
+
+        name.setText(device.getName());
+        address.setText(device.getAddress());
+
+        return row;
+    }
+}

app/src/main/java/io/brendanmyers/rpiconf/MainActivity.java

@@ -0,0 +1,200 @@
+package io.brendanmyers.rpiconf;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.Set;
+import java.util.UUID;
+
+import android.app.Activity;
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothSocket;
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.Spinner;
+import android.widget.TextView;
+
+public class MainActivity extends Activity {
+
+    BluetoothSocket mmSocket;
+
+    Spinner devicesSpinner;
+    Button refreshDevicesButton;
+    TextView ssidTextView;
+    TextView pskTextView;
+    Button startButton;
+    TextView messageTextView;
+
+    private DeviceAdapter adapter_devices;
+
+    final UUID uuid = UUID.fromString("815425a5-bfac-47bf-9321-c5ff980b5e11");
+    final byte delimiter = 33;
+    int readBufferPosition = 0;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        ssidTextView = (TextView) findViewById(R.id.ssid_text);
+        pskTextView = (TextView) findViewById(R.id.psk_text);
+        messageTextView = (TextView) findViewById(R.id.messages_text);
+
+        devicesSpinner = (Spinner) findViewById(R.id.devices_spinner);
+
+        refreshDevicesButton = (Button) findViewById(R.id.refresh_devices_button);
+        startButton = (Button) findViewById(R.id.start_button);
+
+        refreshDevicesButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                refreshDevices();
+            }
+        });
+
+        startButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                String ssid = ssidTextView.getText().toString();
+                String psk = pskTextView.getText().toString();
+
+                BluetoothDevice device = (BluetoothDevice) devicesSpinner.getSelectedItem();
+                (new Thread(new workerThread(ssid, psk, device))).start();
+            }
+        });
+
+        refreshDevices();
+    }
+
+    private void refreshDevices() {
+        adapter_devices = new DeviceAdapter(this, R.layout.spinner_devices, new ArrayList<BluetoothDevice>());
+        devicesSpinner.setAdapter(adapter_devices);
+
+        BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
+
+        if (!mBluetoothAdapter.isEnabled()) {
+            Intent enableBluetooth = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
+            startActivityForResult(enableBluetooth, 0);
+        }
+
+        Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
+        if (pairedDevices.size() > 0) {
+            for (BluetoothDevice device : pairedDevices) {
+                adapter_devices.add(device);
+            }
+        }
+    }
+
+    final class workerThread implements Runnable {
+        private String ssid;
+        private String psk;
+        private BluetoothDevice device;
+
+        public workerThread(String ssid, String psk, BluetoothDevice device) {
+            this.ssid = ssid;
+            this.psk = psk;
+            this.device = device;
+        }
+
+        public void run() {
+            clearOutput();
+            writeOutput("Starting config update.");
+
+            writeOutput("Device: " + device.getName() + " - " + device.getAddress());
+
+            try {
+                mmSocket = device.createRfcommSocketToServiceRecord(uuid);
+                if (!mmSocket.isConnected()) {
+                    mmSocket.connect();
+                    Thread.sleep(1000);
+                }
+
+                writeOutput("Connected.");
+
+                OutputStream mmOutputStream = mmSocket.getOutputStream();
+                final InputStream mmInputStream = mmSocket.getInputStream();
+
+                waitForResponse(mmInputStream, -1);
+
+                writeOutput("Sending SSID.");
+
+                mmOutputStream.write(ssid.getBytes());
+                mmOutputStream.flush();
+                waitForResponse(mmInputStream, -1);
+
+                writeOutput("Sending PSK.");
+
+                mmOutputStream.write(psk.getBytes());
+                mmOutputStream.flush();
+                waitForResponse(mmInputStream, -1);
+
+                mmSocket.close();
+
+                writeOutput("Success.");
+
+            } catch (Exception e) {
+                // TODO Auto-generated catch block
+                e.printStackTrace();
+
+                writeOutput("Failed.");
+            }
+
+            writeOutput("Done.");
+        }
+    }
+
+    private void writeOutput(final String text) {
+        runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                String currentText = messageTextView.getText().toString();
+                messageTextView.setText(currentText + "\n" + text);
+            }
+        });
+    }
+
+    private void clearOutput() {
+        runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                messageTextView.setText("");
+            }
+        });
+    }
+
+    /*
+     * TODO actually use the timeout
+     */
+    private void waitForResponse(InputStream mmInputStream, long timeout) throws IOException {
+        int bytesAvailable;
+
+        while (true) {
+            bytesAvailable = mmInputStream.available();
+            if (bytesAvailable > 0) {
+                byte[] packetBytes = new byte[bytesAvailable];
+                byte[] readBuffer = new byte[1024];
+                mmInputStream.read(packetBytes);
+
+                for (int i = 0; i < bytesAvailable; i++) {
+                    byte b = packetBytes[i];
+
+                    if (b == delimiter) {
+                        byte[] encodedBytes = new byte[readBufferPosition];
+                        System.arraycopy(readBuffer, 0, encodedBytes, 0, encodedBytes.length);
+                        final String data = new String(encodedBytes, "US-ASCII");
+
+                        writeOutput("Received:" + data);
+
+                        return;
+                    } else {
+                        readBuffer[readBufferPosition++] = b;
+                    }
+                }
+            }
+        }
+    }
+}