Question

我正在尝试捕捉蓝牙设备断开连接意图过滤器。我在onReceive中添加了一个日志，但它从未到达它并且没有显示在logcat中。我怀疑问题出在我的manifest.xml配置中：

清单：

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.company"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="10"
        android:targetSdkVersion="16" />

    <uses-permission android:name="android.permission.BLUETOOTH" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <receiver android:name="com.company.MyReceiver" android:enabled="true" android:exported="true">
            <intent-filter>
                <category android:name="android.intent.category.DEFAULT" />
                <action android:name="android.bluetooth.device.action.ACL_DISCONNECT_REQUESTED" />
                <action android:name="android.bluetooth.adapter.action.CONNECTION_STATE_CHANGED" />
                <action android:name="android.bluetooth.adapter.action.DISCOVERY_STARTED" />
            </intent-filter>
        </receiver>

        <activity
            android:name=".BTActivity"
            android:label="BTActivity" >
        </activity>
    </application>

</manifest>

MyReceiver扩展了BroadcastReceiver：

@Override
    public void onReceive(Context context, Intent intent) {
        Log.i("got-in", "got-in-");
        // String action = intent.getAction();
        BluetoothDevice device = intent
                .getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);

        Log.i("disconnect", device.getName());
        Intent i = new Intent(context, BTActivity.class);
        Bundle b = new Bundle();
        b.putString("deviceName", device.getName());
        intent.putExtras(b); // Put your id to your next Intent
        context.startActivity(i);
        // finish();

    }

Answer 1

使用此代码接收断开连接（当蓝牙仍然打开时）：

<intent-filter> <action android:name="android.bluetooth.device.action.ACL_CONNECTED" />
    <action android:name="android.bluetooth.device.action.ACL_DISCONNECT_REQUESTED" />
    <action android:name="android.bluetooth.device.action.ACL_DISCONNECTED" />
</intent-filter>

此外，您必须注册一项服务，然后注册广播接收器以进行蓝牙状态更改，以便您的应用知道何时关闭蓝牙并因此丢弃所有活动设备，因为当蓝牙简单地转动时您将不会收到ACL_DISCONNECT关闭。

@Override
    public int onStartCommand(Intent intent, int flags, int startId) {

    IntentFilter filter = new IntentFilter();
    filter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
    registerReceiver(bluetoothTurnedOnOff, filter);
    return START_STICKY;
}

private final BroadcastReceiver bluetoothTurnedOnOff = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, -1) == BluetoothAdapter.STATE_OFF) {
 [...]

Answer 2

对于新用户。它会起作用。您的清单文件看起来

<receiver android:name="(package name).BluetoothReceiver" >
            <intent-filter>
                <action android:name="android.bluetooth.device.action.ACL_CONNECTED" />
                <action android:name="android.bluetooth.device.action.ACL_DISCONNECTED" />
            </intent-filter>
        </receiver>

你的接收器看起来像

else if (intent.getAction().equals(`enter code here`
    BluetoothDevice.ACTION_ACL_DISCONNECTED)) {
    // connection lost

Answer 3

尝试从intent-filter中删除<category .../>，然后重试。

Answer 4

在intent过滤器中尝试android.bluetooth.device.action.ACL_DISCONNECTED操作。它应该可以解决你的问题。

Android蓝牙 - 检测设备断开连接

4 个答案: