Android 蓝牙匹配后共享联系人实现步骤：
- 开启蓝牙
- 搜索并配对设备
- 建立连接
- 发送联系人信息
- 接收联系人信息
1. 开启蓝牙
// 检查设备是否支持蓝牙
BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (bluetoothAdapter == null) {
// 设备不支持蓝牙
} else {
// 开启蓝牙
if (!bluetoothAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}
}
2. 搜索并配对设备
// 开始搜索设备
bluetoothAdapter.startDiscovery();
// 广播接收设备搜索结果
BroadcastReceiver discoveryReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
// 配对设备
device.createBond();
}
}
};
3. 建立连接
// 建立连接
BluetoothSocket socket = device.createRfcommSocketToServiceRecord(MY_UUID);
socket.connect();
4. 发送联系人信息
// 发送联系人信息
OutputStream outputStream = socket.getOutputStream();
outputStream.write(contactInfo.getBytes());
outputStream.flush();
5. 接收联系人信息
// 接收联系人信息
InputStream inputStream = socket.getInputStream();
byte[] buffer = new byte[1024];
int bytes;
StringBuilder contactBuilder = new StringBuilder();
while ((bytes = inputStream.read(buffer)) > 0) {
contactBuilder.append(new String(buffer, 0, bytes));
}
String receivedContact = contactBuilder.toString();
classDiagram
class BluetoothAdapter{
+getDefaultAdapter(): BluetoothAdapter
+isEnabled(): boolean
+startDiscovery(): boolean
}
class BluetoothDevice{
+createBond(): boolean
+createRfcommSocketToServiceRecord(UUID): BluetoothSocket
}
class BluetoothSocket{
+connect(): void
+getOutputStream(): OutputStream
+getInputStream(): InputStream
}
class OutputStream{
+write(byte[]): void
+flush(): void
}
class InputStream{
+read(byte[]): int
}
gantt
title Android 蓝牙匹配后共享联系人实现任务甘特图
dateFormat YYYY-MM-DD
section 任务分配
学习蓝牙模块 :done, 2022-01-01, 5d
编码实现联系人信息共享 :done, 2022-01-06, 5d
测试调试 :active, 2022-01-11, 3d
通过以上步骤，你可以实现在 Android 设备上通过蓝牙匹配后共享联系人信息的功能。希望这篇文章对你有所帮助，如果有任何问题，欢迎随时向我提问。祝你学习进步！
