在安卓系统中,如果蓝牙BLE配对不工作,可能是由于多种原因引起的。下面是一些可能的解决方法,包括代码示例:
// 检查设备是否支持BLE
private boolean isBLESupported(Context context) {
return context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE);
}
BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
BluetoothAdapter bluetoothAdapter = bluetoothManager.getAdapter();
if (bluetoothAdapter == null || !bluetoothAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}
BluetoothLeScanner bluetoothLeScanner = bluetoothAdapter.getBluetoothLeScanner();
ScanCallback scanCallback = new ScanCallback() {
@Override
public void onScanResult(int callbackType, ScanResult result) {
// 处理扫描到的BLE设备
BluetoothDevice device = result.getDevice();
// ...
}
};
ScanSettings scanSettings = new ScanSettings.Builder()
.setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY)
.build();
bluetoothLeScanner.startScan(Collections.singletonList(serviceUuid), scanSettings, scanCallback);
BluetoothGattCallback gattCallback = new BluetoothGattCallback() {
@Override
public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
if (newState == BluetoothProfile.STATE_CONNECTED) {
// 已连接到BLE设备
// ...
} else if (newState == BluetoothProfile.STATE_DISCONNECTED) {
// 断开与BLE设备的连接
// ...
}
}
};
BluetoothDevice device = bluetoothAdapter.getRemoteDevice(deviceAddress);
BluetoothGatt gatt = device.connectGatt(context, false, gattCallback);
这些是一些常见的解决方法,可用于修复安卓系统中蓝牙BLE配对不工作的问题。根据具体情况,可能需要进一步调试和处理。