编程粘接在Android设备BLE [英] Programmatically bonding to BLE device on Android

问题描述

我写一个Android应用程序中，我想以编程方式结合到一个自定义的BLE装置。我有手工焊接工作中，用户输入使用标准的Andr​​oid蓝牙配对对话框PIN码，但我一直没能找到有关如何自动编程债券A BLE设备的任何信息，无需用户干预。那可能吗？如果是这样，有什么程序？

I'm writing an Android application in which I'd like to programmatically bond to a custom BLE device. I have the manual bonding working in which the user enters the PIN using the standard Android Bluetooth pairing dialog, but I have not been able to find any information on how to automatically bond a BLE device programatically, without user intervention. Is that possible? If so, what's the process?

推荐答案

我可以通过注册一个BroadcastReceiver接收BluetoothDevice.ACTION_BOND_STATE_CHANGED意图，然后在接收后BluetoothDevice类调用BluetoothDevice.setPin，使这项工作的大部分时间。 BOND_BONDING消息。如同在Android中最BLE的东西的情况下，这似乎行事略有不同取决于设备和Android版本上。不幸的是，我似乎无法从又要接受蓝牙意图阻止Android的，所以在完成粘合前的PIN码输入屏幕仍然会弹出一秒钟。

I was able to make this work MOST OF THE TIME by registering a BroadcastReceiver to receive the BluetoothDevice.ACTION_BOND_STATE_CHANGED intent and then calling BluetoothDevice.setPin after receiving the BluetoothDevice.BOND_BONDING message. As is the case with most BLE things in Android, this seems to act slightly differently depending on the device and Android version. Unfortunately, I can't seem to stop Android from also receiving the bluetooth intent, so the PIN entry screen still pops up for a second before the bonding is completed.

   private final BroadcastReceiver mReceiver = new BroadcastReceiver()
   {
       @Override
       public void onReceive(Context context, Intent intent)
       {
           final String action = intent.getAction();
           Logger("Broadcast Receiver:" + action);

           if (action.equals(BluetoothDevice.ACTION_BOND_STATE_CHANGED))
           {
               final int state = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE, BluetoothDevice.ERROR);

               if(state == BluetoothDevice.BOND_BONDING)
               {
                   Logger("Bonding...");
                    if (mDevice != null) {
                        mDevice.setPin(BONDING_CODE.getBytes());
                        Logger("Setting bonding code = " + BONDING_CODE);
                    }
               }
               else if(state == BluetoothDevice.BOND_BONDED)
               {
                   Logger("Bonded!!!");
                   mOwner.unregisterReceiver(mReceiver);
               }
               else if(state == BluetoothDevice.BOND_NONE)
               {
                   Logger("Not Bonded");
               }
           }
       }
   };

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