Question

Android O提供wifiManager.startLocalOnlyHotspot创建一个封闭的网络。为了设计快捷方式或窗口来切换这种热点，我如何知道LocalOnlyHotspot的状态来判断是启动还是关闭它？

当我启动localOnlyHotspot时，其他设备如何连接到它？（如何获取密码？）

Answer 1

此代码可以帮助您使其运行。我实现了一个Hotspotmanager类，该类可以在应用程序中使用。打开热点后，它将向侦听器传递一个wificonfiguration对象，您必须在呼叫活动中实现该对象。从此配置中，您可以获取SSID和preSharedKey。注意：SSID和密码无法更改！！！因为创建过程完全隐藏在Androids系统API中。

public class HotspotManager {
private final WifiManager wifiManager;
private final OnHotspotEnabledListener onHotspotEnabledListener;
private WifiManager.LocalOnlyHotspotReservation mReservation;

public interface OnHotspotEnabledListener{
    void OnHotspotEnabled(boolean enabled, @Nullable WifiConfiguration wifiConfiguration);
}

//call with Hotspotmanager(getApplicationContext().getSystemService(Context.WIFI_SERVICE),this) in an activity that implements the Hotspotmanager.OnHotspotEnabledListener
public HotspotManager(WifiManager wifiManager, OnHotspotEnabledListener onHotspotEnabledListener) {
    this.wifiManager = wifiManager;
    this.onHotspotEnabledListener = onHotspotEnabledListener;
}

@RequiresApi(api = Build.VERSION_CODES.O)
public void turnOnHotspot() {
    wifiManager.startLocalOnlyHotspot(new WifiManager.LocalOnlyHotspotCallback() {

        @Override
        public void onStarted(WifiManager.LocalOnlyHotspotReservation reservation) {
            super.onStarted(reservation);
            mReservation = reservation;
            onHotspotEnabledListener.OnHotspotEnabled(true, mReservation.getWifiConfiguration());
        }

        @Override
        public void onStopped() {
            super.onStopped();
        }

        @Override
        public void onFailed(int reason) {
            super.onFailed(reason);
        }
    }, new Handler());
}

@RequiresApi(api = Build.VERSION_CODES.O)
public void turnOffHotspot() {
    if (mReservation != null) {
        mReservation.close();
        onHotspotEnabledListener.OnHotspotEnabled(false, null);
    }
}

Android如何获取LocalOnlyHotspot的当前状态

1 个答案: