java 在 Android Studio 中配对蓝牙设备
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/46841534/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Pair a bluetooth device in Android Studio
提问by Kirchhoff1415
I'm creating an app that should connect via bluetooth to a specific device.
我正在创建一个应通过蓝牙连接到特定设备的应用程序。
I want my app to connect with this device no matter it is already paired or not.
我希望我的应用程序与此设备连接，无论它是否已配对。
For now I have this
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;
}
}
}
}
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.
但此功能仅连接到配对设备。如果我的设备尚未配对，我想配对它。不知道该怎么做。
Can someone get me any advice please?
有人可以给我任何建议吗？
回答by nhoxbypass
First request BLUETOOTH_ADMINpermission.
首先请求BLUETOOTH_ADMIN许可。
Then make your device discoverable:
然后使您的设备可被发现：
private void makeDiscoverable() {
Intent discoverableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300);
startActivity(discoverableIntent);
Log.i("Log", "Discoverable ");
}
Then create a BroadcastReceiverto listen to action from system:
然后创建一个BroadcastReceiver来监听来自系统的动作：
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
}
}
};
And start searching for devices by registering this BoardcastReceiver:
并通过注册此BoardcastReceiver开始搜索设备：
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();
}
After devices come from the BroadcastReceiverinto a list, select your device from the list and createBond()with this:
设备从BroadcastReceiver进入列表后，从列表中选择您的设备，然后createBond()：
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();
}
Then use your code above to manage with bonded devices.
然后使用上面的代码来管理绑定设备。
