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我正在使用Android Wi-Fi Direct服務發現功能。當連接信息可用時，如果組形成，我請求組信息。出於某種原因，當我作爲客戶端連接時，我可以從組中獲取組所有者，但客戶端列表爲空。當我作爲羣組所有者進行連接時，我可以獲得羣組所有者和客戶名單。當我到達聊天片段時，我試圖顯示組所有者和客戶是誰。另一個問題是，組所有者設備名稱似乎是空白的，但其餘的信息是正確的，如地址（我刪除了地址行）。我嘗試了在幾個不同的地方請求羣組信息，並且當我作爲客戶端連接時，我永遠無法獲得客戶端列表。當我收到SERVICE_CONNECTED意圖時，我切換到聊天片段。當我作爲客戶端連接時，爲什麼客戶端列表爲空？
連接的客戶端：
I/wfd_: Wi-Fi P2P Connection Changed
I/wfd_: Connected to P2P network. Requesting connection info
I/wfd_: Connection info available
I/wfd_: WifiP2pInfo:
I/wfd_: Group formed: true
Is group owner: false
Group owner address: /192.168.49.1
I/wfd_: Stopping service discovery
I/wfd_: Service discovery stopped
I/wfd_: Connected as client
I/wfd_: Requesting group info
I/wfd_CommReceiver: This device changed
I/wfd_ClientSocketHandler: Client socket thread running
I/wfd_ClientSocketHandler: Opening client socket
I/System.out: [CDS][DNS] getAllByNameImpl netId = 0
I/System.out: [socket][0] connection /192.168.49.1:4545;LocalPort=34789(5000)
I/System.out: [CDS]connect[/192.168.49.1:4545] tm:5
I/wfd_: Service discovery requests cleared
I/wfd_: Group info available
I/wfd_: WifiP2pGroup:
I/wfd_: Network name: DIRECT-Ig-BLU Clark 2
Is group owner: false
Group owner:
Device name: BLU Clark 2
Status: Unavailable
Client list is empty.
/System.out: [socket][/192.168.49.117:34789] connected
I/wfd_ClientSocketHandler: Client socket - true
I/wfd_ClientSocketHandler: Launching the I/O handler
I/wfd_CommReceiver: Service connected
I/wfd_CommReceiver: Switching to Chat fragment
I/wfd_: handleMessage() called
連接爲組擁有者：
I/wfd_: Wi-Fi P2P Connection Changed
I/wfd_: Connected to P2P network. Requesting connection info
I/wfd_: Connection info available
I/wfd_: WifiP2pInfo:
I/wfd_: Group formed: true
Is group owner: true
Group owner address: /192.168.49.1
I/wfd_: Stopping service discovery
I/wfd_: Service discovery stopped
I/wfd_: Connected as group owner
I/wfd_OwnerSocketHandler: Group owner server socket started
I/wfd_: Requesting group info
I/wfd_OwnerSocketHandler: Group owner server socket thread running
I/wfd_: Service discovery requests cleared
I/wfd_CommReceiver: This device changed
I/wfd_: Group info available
I/wfd_: WifiP2pGroup:
I/wfd_: Network name: DIRECT-XB-Brendan BLU
Is group owner: true
Group owner:
Device name:
Status: Unavailable
Client:
Device name: BLU Clark 2
Status: Connected
I/wfd_CommReceiver: Service connected
I/wfd_CommReceiver: Switching to Chat fragment
I/wfd_OwnerSocketHandler: Launching the I/O handler
I/wfd_: handleMessage() called
代碼：
@Override
public void onConnectionInfoAvailable(WifiP2pInfo wifiP2pInfo) {
Log.i(TAG, "Connection info available");
Log.i(TAG, "WifiP2pInfo: ");
Log.i(TAG, p2pInfoToString(wifiP2pInfo));
this.groupFormed = wifiP2pInfo.groupFormed;
this.isGroupOwner = wifiP2pInfo.isGroupOwner;
if (wifiP2pInfo.groupFormed) {
stopServiceDiscovery();
Thread handler;
if (wifiP2pInfo.isGroupOwner) {
Log.i(TAG, "Connected as group owner");
try {
handler = new OwnerSocketHandler(this.getHandler());
handler.start();
} catch (IOException e) {
Log.e(TAG, "Failed to create a server thread - " + e.getMessage());
return;
}
} else {
Log.i(TAG, "Connected as client");
handler = new ClientSocketHandler(this.getHandler(), wifiP2pInfo.groupOwnerAddress);
handler.start();
}
Log.i(TAG, "Requesting group info");
// Requests peer-to-peer group information
wifiP2pManager.requestGroupInfo(channel, new WifiP2pManager.GroupInfoListener() {
@Override
public void onGroupInfoAvailable(WifiP2pGroup wifiP2pGroup) {
Log.i(TAG, "Group info available");
if (wifiP2pGroup != null) {
Log.i(TAG, "WifiP2pGroup:");
Log.i(TAG, p2pGroupToString(wifiP2pGroup));
WifiDirectHandler.this.wifiP2pGroup = wifiP2pGroup;
} else {
Log.w(TAG, "Group is null");
}
localBroadcastManager.sendBroadcast(new Intent(Action.SERVICE_CONNECTED));
}
});
} else {
Log.w(TAG, "Group not formed");
}
localBroadcastManager.sendBroadcast(new Intent(Action.DEVICE_CHANGED));
}