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SebasKoedam
2024-05-23 18:09:19 +02:00
parent 8cc571bb3b
commit 9795ccb490
5 changed files with 0 additions and 294 deletions
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34
code/src/Fitbot/app/src/main/java/com/example/fitbot/bluetooth/BluetoothDevice.java
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/*
Copyright 2008 Nedim Jackman
This file is part of Wiiboard Simple
Wiiboard Simple is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Wiiboard Simple is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with Wiiboard Simple. If not, see <http://www.gnu.org/licenses/>.
*/
package com.example.fitbot.bluetooth;
/**
* In very basic structure, all bluetooth devices have an address that the connection
* is associated with.
*/
public interface BluetoothDevice {
/**
* The fixed address of the device.
* Constant throughout the connection of the device.
*/
public String getBluetoothAddress();
}

133
code/src/Fitbot/app/src/main/java/com/example/fitbot/bluetooth/BluetoothManager.java
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package com.example.fitbot.bluetooth;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.Context;
import android.util.Log;
import java.io.IOException;
import java.lang.reflect.Method;
import java.util.UUID;
public class BluetoothManager {
private BluetoothAdapter bluetoothAdapter;
private Context context;
public BluetoothManager(Context context) {
this.context = context;
this.bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
}
public boolean isBluetoothSupported() {
return bluetoothAdapter != null;
}
public boolean isBluetoothEnabled() {
return bluetoothAdapter.isEnabled();
}
public void startDiscovery() {
if (!isBluetoothEnabled()) {
Log.e("BluetoothManager", "Bluetooth is not enabled");
return;
}
if (bluetoothAdapter.isDiscovering()) {
bluetoothAdapter.cancelDiscovery();
Log.d("BluetoothManager", "Cancelling current discovery process...");
}
IntentFilter filter = new IntentFilter();
filter.addAction(BluetoothDevice.ACTION_FOUND);
filter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
context.registerReceiver(receiver, filter);
bluetoothAdapter.startDiscovery();
Log.d("BluetoothManager", "Starting discovery process...");
}
public final BroadcastReceiver receiver = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
if (device.getName() != null && device.getName().contains("Nintendo RVL-WBC-01")) {
Log.d("BluetoothManager", "Wii Balance Board found: " + device.getName() + " [" + device.getAddress() + "]");
connectToDevice(device);
}
} else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {
context.unregisterReceiver(this);
Log.d("BluetoothManager", "Discovery finished.");
}
}
};
public void connectToDevice(BluetoothDevice device) {
new Thread(() -> {
BluetoothSocket socket = null;
final int MAX_RETRIES = 3;
final long RETRY_DELAY_MS = 1000;
boolean isConnected = false;
for (int attempt = 1; attempt <= MAX_RETRIES; attempt++) {
try {
UUID SPP_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
socket = device.createRfcommSocketToServiceRecord(SPP_UUID);
bluetoothAdapter.cancelDiscovery();
byte[] pinBytes = getPinBytes(device.getAddress());
try {
Method setPinMethod = device.getClass().getDeclaredMethod("setPin", byte[].class);
setPinMethod.invoke(device, pinBytes);
Log.d("BluetoothManager", "PIN set successfully");
} catch (Exception e) {
Log.e("BluetoothManager", "Failed to set PIN", e);
}
socket.connect();
Log.d("BluetoothManager", "Connected to Wii Balance Board");
isConnected = true;
break;
} catch (IOException e) {
Log.e("BluetoothManager", "Connection attempt " + attempt + " failed", e);
if (attempt < MAX_RETRIES) {
try {
Thread.sleep(RETRY_DELAY_MS);
} catch (InterruptedException ie) {
Thread.currentThread().interrupt();
break;
}
}
} finally {
if (!isConnected && socket != null) {
try {
socket.close();
} catch (IOException ex) {
Log.e("BluetoothManager", "Could not close the client socket", ex);
}
}
}
}
if (!isConnected) {
Log.e("BluetoothManager", "All connection attempts failed.");
}
}).start();
}
private byte[] getPinBytes(String address) {
String[] addrParts = address.split(":");
byte[] pin = new byte[addrParts.length];
for (int i = 0; i < addrParts.length; i++) {
pin[i] = (byte) Integer.parseInt(addrParts[addrParts.length - 1 - i], 16);
}
Log.i("BluetoothManager", "PIN: " + pin);
return pin;
}
}

48
code/src/Fitbot/app/src/main/java/com/example/fitbot/wiiboard/WiiBoard.java
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package com.example.fitbot.wiiboard;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.util.Log;
import java.io.IOException;
import java.lang.reflect.Method;
public class WiiBoard {
private static final String TAG = "WiiBoard";
public static void connectToExtension(String address) {
BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
BluetoothDevice device = bluetoothAdapter.getRemoteDevice(address);
BluetoothSocket socket = null;
final int maxTries = 3;
int currentTry = 0;
while (currentTry < maxTries) {
try {
// Use reflection to create a BluetoothSocket without UUID
Method m = device.getClass().getMethod("createRfcommSocket", new Class[]{int.class});
socket = (BluetoothSocket) m.invoke(device, 1);
bluetoothAdapter.cancelDiscovery();
socket.connect();
Log.i(TAG, "Connected to WiiBoard");
// Handle your communication here
return; // Exit the method upon successful connection
} catch (Exception e) { // Catching Exception to handle reflection exceptions too
Log.e(TAG, "Attempt " + (currentTry + 1) + " failed to connect", e);
currentTry++;
try {
// Wait a bit before retrying
Thread.sleep(1000);
} catch (InterruptedException ie) {
Log.e(TAG, "Interrupted while waiting to retry connection", ie);
}
}
}
Log.e(TAG, "Could not connect to WiiBoard after " + maxTries + " attempts.");
}
}

66
code/src/Fitbot/app/src/main/java/com/example/fitbot/wiiboard/WiiBoardDiscoverer.java
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package com.example.fitbot.wiiboard;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.util.Log;
public class WiiBoardDiscoverer {
private BluetoothAdapter bluetoothAdapter;
private Context context;
private String discoveredAddress;
private boolean isSearching;
private final BroadcastReceiver receiver = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
String name = device.getName();
if ("Nintendo RVL-WBC-01".equals(name)) {
discoveredAddress = device.getAddress();
Log.i("WiiBoardDiscoverer", "Discovered " + name + " " + discoveredAddress + ".");
isSearching = false;
bluetoothAdapter.cancelDiscovery();
context.unregisterReceiver(this); // Important to unregister
WiiBoard.connectToExtension(discoveredAddress);
}
}
}
};
public WiiBoardDiscoverer(Context context) {
this.context = context;
this.bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (bluetoothAdapter == null) {
Log.i("WiiBoardDiscoverer", "Device doesn't support Bluetooth. Exiting.");
System.exit(0);
}
}
public void startWiiBoardSearch() {
if (!isSearching && !bluetoothAdapter.isDiscovering()) {
isSearching = true;
IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
context.registerReceiver(receiver, filter);
bluetoothAdapter.startDiscovery();
Log.i("WiiBoardDiscoverer", "WiiBoard Discovery Started");
}
}
public void stopWiiBoardSearch() {
if (bluetoothAdapter.isDiscovering()) {
bluetoothAdapter.cancelDiscovery();
}
isSearching = false;
try {
context.unregisterReceiver(receiver);
} catch (IllegalArgumentException e) {
// This can happen if the receiver was not registered or already unregistered
Log.i("WiiBoardDiscoverer", "Receiver was not registered or already unregistered");
}
}
}

13
code/src/Fitbot/app/src/main/java/com/example/fitbot/wiiboard/WiiBoardDiscoveryListener.java
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package com.example.fitbot.wiiboard;
/**
* Implement this interface to be notified of WiiBoards that are connected to. Register your
* listener with an instance of WiiBoardDiscoverer.
*/
public interface WiiBoardDiscoveryListener {
/**
* Is called by a WiiBoardDiscoverer when a WiiBoard has been found and successfully connected to.
*/
public void wiiBoardDiscovered(WiiBoard wiiboard);
}