蓝牙连接时BroadcastReceiver的通知 [英] BroadcastReceiver to notify when Bluetooth is connected
本文介绍了蓝牙连接时BroadcastReceiver的通知的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想打一个广播接收器
,通知我当蓝牙的连接的到其他设备。
I want to make a BroadcastReceiver
that notifies me when the Bluetooth is connected to another device.
BroadcastReceiver bluetooth = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction() == android.bluetooth.BluetoothDevice.ACTION_ACL_CONNECTED) {
Toast.makeText(MainActivity.this, "done!", Toast.LENGTH_LONG)
.show();
}
}
};
和
IntentFilter ff = new IntentFilter();
ff.addAction(android.bluetooth.BluetoothDevice.ACTION_ACL_CONNECTED);
registerReceiver(bluetooth, ff);
和AndroidManifest.xml中
and AndroidManifest.xml
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
不过,当设备连接,没有任何反应,为什么?
but when the device is connected, nothing happens, why?
推荐答案
试试这个方法:
getApplicationContext().registerReceiver(receiver,
new IntentFilter(BluetoothDevice.ACTION_ACL_CONNECTED));
getApplicationContext().registerReceiver(receiver,
new IntentFilter(BluetoothDevice.ACTION_ACL_DISCONNECTED));
private final BroadcastReceiver mReceiver = new BroadcastReceiver()
{
@Override
public void onReceive(Context context, Intent intent)
{
if (BluetoothDevice.ACTION_ACL_CONNECTED.equals(action))
{
// LOG - Connected
}
else if (BluetoothDevice.ACTION_ACL_DISCONNECTED.equals(action))
{
// LOG - Disconnected
}
}
}
我希望它能帮助。
I hope it helps.
这篇关于蓝牙连接时BroadcastReceiver的通知的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文