android 10.0 监听Soft Ap热点连接与断开
时间: 2024-12-16 19:23:22 浏览: 5
在Android 10.0及以上版本中,监听Soft AP(Wi-Fi热点)的连接和断开状态需要通过`BroadcastReceiver`配合`WifiP2pManager` API来实现。以下是一个基本步骤:
1. **添加权限**:
在`AndroidManifest.xml`中添加必要的权限:
```xml
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-feature android:name="android.hardware.wifi.p2p" android:required="true" />
```
2. **创建BroadcastReceiver**:
创建一个`WifiP2pManager.ActionListener`接口的实现,用于处理事件回调:
```java
public class WifiP2pCallback extends BroadcastReceiver {
// ... 实现onReceive方法和onSuccess/onFailure等回调
}
```
3. **注册BroadcastReceiver**:
在`Activity`或`Fragment`的生命周期管理中,注册接收热点相关的`ACTION_WIFI_P2P_CONNECTION_CHANGED`广播:
```java
@Override
protected void onResume() {
super.onResume();
registerReceiver(wifiP2pCallback, new IntentFilter(WifiP2pManager.ACTION_WIFI_P2P_CONNECTION_CHANGED));
}
@Override
protected void onPause() {
super.onPause();
unregisterReceiver(wifiP2pCallback);
}
```
4. **获取和设置Wi-Fi P2P管理器**:
获取`WifiP2pManager`实例,并设置ActionListener:
```java
private WifiP2pManager wifiManager;
private WifiP2pManager.Channel channel;
// 初始化并打开P2P功能
initializeWifiP2p();
private void initializeWifiP2p() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
wifiManager = (WifiP2pManager) getSystemService(Context.WIFI_P2P_SERVICE);
channel = wifiManager.initialize(this, getMainLooper(), null);
}
}
// 设置ActionListener
public void setListener(WifiP2pManager.ActionListener listener) {
this.channel.setListenModeListener(listener);
}
```
5. **响应事件处理**:
`onReceive`方法会收到热点连接和断开的消息,根据消息内容处理相应操作。
```java
@Override
public void onReceive(Context context, Intent intent) {
int state = intent.getIntExtra(WifiP2pManager.EXTRA_WIFI_STATE, -1);
if (state == WifiP2pManager.WIFI_P2P_STATE_CONNECTED) {
// 连接成功,处理相关逻辑
} else if (state == WifiP2pManager.WIFI_P2P_STATE_DISCONNECTED) {
// 断开连接,处理相关逻辑
}
}
```
阅读全文