在Android Studio中配对蓝牙设备 [英] Pair a bluetooth device in Android Studio
问题描述
我正在创建一个应通过蓝牙连接到特定设备的应用.
I'm creating an app that should connect via bluetooth to a specific device.
无论设备是否已配对,我都希望我的应用程序与此设备连接.
I want my app to connect with this device no matter it is already paired or not.
现在我有这个
private void findDevice() {
Set<BluetoothDevice> pairedDevices = bluetoothAdapter.getBondedDevices();
if (pairedDevices.size() > 0) {
for (BluetoothDevice device : pairedDevices) {
if (device.getName().equals(DEVICE_NAME)) {
bluetoothDevice = device;
deviceFound = true;
break;
}
}
}
}
但是此功能仅连接到已配对的设备. 如果我的设备尚未配对,我想将其配对. 不知道该怎么做.
But this function connects only to paired devices. If my device isn't already paired, I want to pair it. Have no idea how to do this.
有人可以给我任何建议吗?
Can someone get me any advice please?
推荐答案
第一个请求BLUETOOTH_ADMIN
权限.
然后使您的设备可被发现:
Then make your device discoverable:
private void makeDiscoverable() {
Intent discoverableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300);
startActivity(discoverableIntent);
Log.i("Log", "Discoverable ");
}
然后创建一个 BroadcastReceiver 来监听系统中的操作:
Then create a BroadcastReceiver to listen to action from system:
private BroadcastReceiver myReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
Message msg = Message.obtain();
String action = intent.getAction();
if(BluetoothDevice.ACTION_FOUND.equals(action)){
//Found, add to a device list
}
}
};
并通过注册此 BoardcastReceiver 开始搜索设备:
And start searching for devices by registering this BoardcastReceiver:
private void startSearching() {
Log.i("Log", "in the start searching method");
IntentFilter intentFilter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
BluetoothDemo.this.registerReceiver(myReceiver, intentFilter);
bluetoothAdapter.startDiscovery();
}
设备从 BroadcastReceiver 进入列表后,从列表中选择您的设备,并在createBond()
中选择以下内容:
After devices come from the BroadcastReceiver into a list, select your device from the list and createBond()
with this:
public boolean createBond(BluetoothDevice btDevice)
throws Exception
{
Class class1 = Class.forName("android.bluetooth.BluetoothDevice");
Method createBondMethod = class1.getMethod("createBond");
Boolean returnValue = (Boolean) createBondMethod.invoke(btDevice);
return returnValue.booleanValue();
}
然后使用上面的代码通过绑定设备进行管理.
Then use your code above to manage with bonded devices.
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