Question

我已经成功实现了wifi直接示例演示并且双向图像共享工作正常但我的问题是当一个设备A发送邀请连接到设备B而设备B取消该邀请时，我无法处理这取消了该事件的回调，因为它是Android生成的。

任何可以帮助我解决问题的人。

以下是我的广播接收代码和连接代码：

>CF

对于连接，我使用了以下代码：

/**
 * A BroadcastReceiver that notifies of important wifi p2p events.
 */
public class WiFiDirectBroadcastReceiver extends BroadcastReceiver {

    private WifiP2pManager manager;
    private Channel channel;
    private WiFiDirectActivity activity;

    /**
     * @param manager WifiP2pManager system service
     * @param channel Wifi p2p channel
     * @param activity activity associated with the receiver
     */
    public WiFiDirectBroadcastReceiver(WifiP2pManager manager, Channel channel,
            WiFiDirectActivity activity) {
        super();
        this.manager = manager;
        this.channel = channel;
        this.activity = activity;
    }

    /*
     * (non-Javadoc)
     * @see android.content.BroadcastReceiver#onReceive(android.content.Context,
     * android.content.Intent)
     */
    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        if (WifiP2pManager.WIFI_P2P_STATE_CHANGED_ACTION.equals(action)) {

            // UI update to indicate wifi p2p status.
            int state = intent.getIntExtra(WifiP2pManager.EXTRA_WIFI_STATE, -1);
            if (state == WifiP2pManager.WIFI_P2P_STATE_ENABLED) {
                // Wifi Direct mode is enabled
                activity.setIsWifiP2pEnabled(true);
            } else {
                activity.setIsWifiP2pEnabled(false);
                activity.resetData();

            }
            Log.d(WiFiDirectActivity.TAG, "P2P state changed - " + state);
        } else if (WifiP2pManager.WIFI_P2P_PEERS_CHANGED_ACTION.equals(action)) {

            // request available peers from the wifi p2p manager. This is an
            // asynchronous call and the calling activity is notified with a
            // callback on PeerListListener.onPeersAvailable()
            if (manager != null) {
                manager.requestPeers(channel, (PeerListListener) activity.getFragmentManager()
                        .findFragmentById(R.id.frag_list));
            }
            Log.d(WiFiDirectActivity.TAG, "P2P peers changed");
        } else if (WifiP2pManager.WIFI_P2P_CONNECTION_CHANGED_ACTION.equals(action)) {

            if (manager == null) {
                return;
            }

            NetworkInfo networkInfo = (NetworkInfo) intent
                    .getParcelableExtra(WifiP2pManager.EXTRA_NETWORK_INFO);

            if (networkInfo.isConnected()) {

                // we are connected with the other device, request connection
                // info to find group owner IP

                DeviceDetailFragment fragment = (DeviceDetailFragment) activity
                        .getFragmentManager().findFragmentById(R.id.frag_detail);
                manager.requestConnectionInfo(channel, fragment);
            } else {
                // It's a disconnect
                activity.resetData();
            }
        } else if (WifiP2pManager.WIFI_P2P_THIS_DEVICE_CHANGED_ACTION.equals(action)) {
            DeviceListFragment fragment = (DeviceListFragment) activity.getFragmentManager()
                    .findFragmentById(R.id.frag_list);
            fragment.updateThisDevice((WifiP2pDevice) intent.getParcelableExtra(
                    WifiP2pManager.EXTRA_WIFI_P2P_DEVICE));

        }
    }
}

Answer 1

该类需要实现ConnectionInfoListener。在函数onConnectionInfoAvailable（最终WifiP2pInfo信息）中，您可以检查是否已建立成功连接。 WifiP2pInfo类型的info参数包含有关连接的信息。它包含一个名为groupFormed的布尔值，指示是否已成功形成p2p组。如果设备是groupOwner并且groupOwner的IP等，您也可以从中检索。

@覆盖 public void onConnectionInfoAvailable（final WifiP2pInfo info）{

    // After the group negotiation, we check if this device 
    // is acting as group owner

    if (info.groupFormed && !info.isGroupOwner) {

        // Do whatever you want the group owner to do

    } else if (info.groupFormed) {
        // The device now act as the slave device, 
        // and the other connected device is group owner
}

Google提供了一个非常好的演示应用，它使用WiFi Direct在2台设备之间发送图像。检查它的实现并尝试在它之上构建。链接：http://developer.android.com/guide/topics/connectivity/wifip2p.html

希望这会有所帮助。如果您有任何问题，请告诉我。

来自：

Check whether android wifip2p connection was successful?

Android中对等设备上的WiFi直接图像共享

1 个答案: