如何在Android WifiP2pManager onPeersAvailable()中检索对等列表?
我试图通过WifiP2pManager访问Wifdirect功能,在这里,我试图通过活动类中的OnPeerAvailable()检索对等列表,但无法实现。请建议我如何检索和显示Aviable peer,以及在何处编写连接代码。我的方法如下 Log.d未在此方法中打印其值如何在Android WifiP2pManager onPeersAvailable()中检索对等列表?,android,wifip2p,Android,Wifip2p,我试图通过WifiP2pManager访问Wifdirect功能,在这里,我试图通过活动类中的OnPeerAvailable()检索对等列表,但无法实现。请建议我如何检索和显示Aviable peer,以及在何处编写连接代码。我的方法如下 Log.d未在此方法中打印其值 @Override public void onPeersAvailable(WifiP2pDeviceList peerList) { if (progressDialog != null &&
@Override
public void onPeersAvailable(WifiP2pDeviceList peerList) {
if (progressDialog != null && progressDialog.isShowing()) {
progressDialog.dismiss();
}
peers.clear();
peers.addAll(peerList.getDeviceList());
Log.e("Peer Size-* * * *", String.valueOf(peers.size())+peerList.toString());
//((WiFiPeerListAdapter) getListAdapter()).notifyDataSetChanged();
if (peers.size() == 0) {
Log.d(MainActivity.TAG, "No devices found");
Log.e("Peer Size-","No Device Found * * * *");
return;
}
}
主要活动
public class MainActivity extends AppCompatActivity implements WifiP2pManager.ChannelListener,WifiP2pManager.PeerListListener {
WifiP2pManager mManager;
WifiP2pManager.Channel mChannel;
BroadcastReceiver mReceiver;
IntentFilter mIntentFilter;
public static final String TAG = "MainActivity";
private List<WifiP2pDevice> peers = new ArrayList<WifiP2pDevice>();
ProgressDialog progressDialog = null;
View mContentView = null;
private WifiP2pDevice device;
private WifiP2pManager manager;
private boolean isWifiP2pEnabled = false;
private boolean retryChannel = false;
private final IntentFilter intentFilter = new IntentFilter();
TextView value;
/*
public void setIsWifiP2pEnabled(boolean isWifiP2pEnabled) {
this.isWifiP2pEnabled = isWifiP2pEnabled;
}
*/
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
mManager = (WifiP2pManager) getSystemService(Context.WIFI_P2P_SERVICE);
mChannel = mManager.initialize(this, getMainLooper(), null);
mReceiver = new WiFiDirectBroadcastReceiver(mManager, mChannel, this);
mIntentFilter = new IntentFilter();
mIntentFilter.addAction(WifiP2pManager.WIFI_P2P_STATE_CHANGED_ACTION);
mIntentFilter.addAction(WifiP2pManager.WIFI_P2P_PEERS_CHANGED_ACTION);
mIntentFilter.addAction(WifiP2pManager.WIFI_P2P_CONNECTION_CHANGED_ACTION);
mIntentFilter.addAction(WifiP2pManager.WIFI_P2P_THIS_DEVICE_CHANGED_ACTION);
}
@Override
protected void onResume() {
super.onResume();
registerReceiver(mReceiver, mIntentFilter);
}
/* unregister the broadcast receiver */
@Override
protected void onPause() {
super.onPause();
unregisterReceiver(mReceiver);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
manager.discoverPeers(mChannel, new WifiP2pManager.ActionListener() {
@Override
public void onSuccess() {
Toast.makeText(MainActivity.this, "Discovery Initiated",
Toast.LENGTH_SHORT).show();
}
@Override
public void onFailure(int reasonCode) {
Toast.makeText(MainActivity.this, "Discovery Failed : " + reasonCode,
Toast.LENGTH_SHORT).show();
}
});
/*
Button clk = (Button) findViewById(R.id.showDetails);
clk.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//Toast.makeText(MainActivity.this, "Button Clicked", Toast.LENGTH_SHORT).show();
TextView view2 = (TextView) findViewById(R.id.value);
view2.setText(device.deviceAddress);
}
});
*/
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onPeersAvailable(WifiP2pDeviceList peerList) {
if (progressDialog != null && progressDialog.isShowing()) {
progressDialog.dismiss();
}
peers.clear();
peers.addAll(peerList.getDeviceList());
Log.e("Peer Size-* * * *", String.valueOf(peers.size())+peerList.toString());
//((WiFiPeerListAdapter) getListAdapter()).notifyDataSetChanged();
if (peers.size() == 0) {
Log.d(MainActivity.TAG, "No devices found");
Log.e("Peer Size-","No Device Found * * * *");
return;
}
}
@Override
public void onChannelDisconnected() {
// we will try once more
if (manager != null && !retryChannel) {
Toast.makeText(this, "Channel lost. Trying again", Toast.LENGTH_LONG).show();
// resetData();
retryChannel = true;
manager.initialize(this, getMainLooper(), this);
} else {
Toast.makeText(this,
"Severe! Channel is probably lost premanently. Try Disable/Re-Enable P2P.",
Toast.LENGTH_LONG).show();
}
}
}
public类MainActivity扩展AppCompatActivity实现WifiP2pManager.ChannelListener、WifiP2pManager.peerListener{
WifiP2pManager-mManager;
WifiP2pManager.Channel mcchannel;
广播接收机;
IntentFilter-minentfilter;
公共静态最终字符串TAG=“MainActivity”;
private List peers=new ArrayList();
ProgressDialog=null;
View mContentView=null;
专用wifip2p设备;
私人WifiP2pManager经理;
私有布尔值isWifiP2pEnabled=false;
私有布尔retryChannel=false;
私有最终IntentFilter IntentFilter=新IntentFilter();
文本视图值;
/*
公共无效集isWifiP2pEnabled(布尔值isWifiP2pEnabled){
this.isWifiP2pEnabled=isWifiP2pEnabled;
}
*/
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar Toolbar=(Toolbar)findViewById(R.id.Toolbar);
设置支持操作栏(工具栏);
FloatingActionButton fab=(FloatingActionButton)findViewById(R.id.fab);
fab.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图){
Snackbar.make(查看“替换为您自己的操作”,Snackbar.LENGTH\u LONG)
.setAction(“Action”,null).show();
}
});
mManager=(WifiP2pManager)getSystemService(Context.WIFI\u P2P\u服务);
mChannel=mManager.initialize(这是getMainLooper(),null);
mReceiver=新的WiFiDirectBroadcastReceiver(mManager、mChannel、this);
minentfilter=newintentfilter();
minentfilter.addAction(WifiP2pManager.WIFI\u P2P\u STATE\u CHANGED\u ACTION);
minentfilter.addAction(WifiP2pManager.WIFI\u P2P\u PEERS\u CHANGED\u ACTION);
minentfilter.addAction(WifiP2pManager.WIFI\u P2P\u连接\u更改\u操作);
MinentFilter.addAction(WifiP2pManager.WIFI\u P2P\u此设备\u更改\u操作);
}
@凌驾
受保护的void onResume(){
super.onResume();
registerReceiver(mReceiver、MinentFilter);
}
/*取消注册广播接收器*/
@凌驾
受保护的void onPause(){
super.onPause();
未注册接收人(mReceiver);
}
@凌驾
公共布尔onCreateOptions菜单(菜单){
//为菜单充气;这会将项目添加到操作栏(如果存在)。
getMenuInflater().充气(右菜单菜单菜单主菜单);
返回true;
}
@凌驾
公共布尔值onOptionsItemSelected(菜单项项){
//处理操作栏项目单击此处。操作栏将
//自动处理Home/Up按钮上的点击,只要
//在AndroidManifest.xml中指定父活动时。
int id=item.getItemId();
manager.discoverPeers(mcchannel,新的WifiP2pManager.ActionListener(){
@凌驾
成功时的公共无效(){
Toast.makeText(MainActivity.this,“发现已启动”,
吐司。长度(短)。show();
}
@凌驾
公共失效失效失效(int推理代码){
Toast.makeText(MainActivity.this,“发现失败:”+reasonCode,
吐司。长度(短)。show();
}
});
/*
按钮clk=(按钮)findViewById(R.id.showDetails);
clk.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图){
//Toast.makeText(MainActivity.this,“单击按钮”,Toast.LENGTH_SHORT.show();
TextView视图2=(TextView)findViewById(R.id.value);
view2.setText(设备.设备地址);
}
});
*/
//noinspection SimplifiableIf语句
if(id==R.id.action\u设置){
返回true;
}
返回super.onOptionsItemSelected(项目);
}
@凌驾
PeersAvailable上的公共无效(WifiP2pDeviceList peerList){
if(progressDialog!=null&&progressDialog.isShowing()){
progressDialog.disclose();
}
peers.clear();
peers.addAll(peerList.getDeviceList());
Log.e(“Peer Size-****”,String.valueOf(peers.Size())+peerList.toString());
//((WiFiPeerListAdapter)getListAdapter()).notifyDataSetChanged();
if(peers.size()==0){
Log.d(MainActivity.TAG,“未找到任何设备”);
Log.e(“对等大小-”,“未找到设备****”;
返回;
}
}
@凌驾
公共void onChannelDisconnected(){
//我们会再试一次
if(manager!=null&&!retryChannel){
Toast.makeText(此“频道丢失。重试”,Toast.LENGTH_LONG.show();
//重置数据();
retryChannel=true;
初始化(this,getMainLooper(),this);
}否则{
Toast.makeText(这个,
“严重!通道可能暂时丢失。请尝试禁用/重新启用P2P。”,
Toast.LENGTH_LONG).show();
}
}
}
这是广播接收机
public class WiFiDirectBroadcastReceiver extends BroadcastReceiver {
private WifiP2pManager mManager;
private WifiP2pManager.Channel mChannel;
private MainActivity mActivity;
WifiP2pManager.PeerListListener myPeerListListener;
private List<WifiP2pDevice> peers = new ArrayList<WifiP2pDevice>();
ProgressDialog progressDialog = null;
View mContentView = null;
private WifiP2pDevice device;
public WiFiDirectBroadcastReceiver(WifiP2pManager manager, WifiP2pManager.Channel channel,
MainActivity activity) {
super();
this.mManager = manager;
this.mChannel = channel;
this.mActivity = activity;
}
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
mManager.discoverPeers(mChannel, new WifiP2pManager.ActionListener() {
@Override
public void onSuccess() {
Toast.makeText(mActivity, "Channel Received", Toast.LENGTH_SHORT).show();
}
@Override
public void onFailure(int reasonCode) {
Toast.makeText(mActivity, "Channel Not Received", Toast.LENGTH_SHORT).show();
}
});
if (WifiP2pManager.WIFI_P2P_STATE_CHANGED_ACTION.equals(action)) {
// Check to see if Wi-Fi is enabled and notify appropriate activity
int state = intent.getIntExtra(WifiP2pManager.EXTRA_WIFI_STATE, -1);
if (state == WifiP2pManager.WIFI_P2P_STATE_ENABLED) {
// Wifi Direct mode is enabled
//mActivity.setIsWifiP2pEnabled(true);
Log.e("WifiDIRECT-","Enabled");
} else {
//mActivity.setIsWifiP2pEnabled(false);
Log.e("WifiDIRECT-","Disabled");
// mActivity.resetData();
}
Log.d(MainActivity.TAG, "P2P state changed - " + state);
} else if (WifiP2pManager.WIFI_P2P_PEERS_CHANGED_ACTION.equals(action)) {
if (mManager != null) {
mManager.requestPeers(mChannel, myPeerListListener );
Log.e("Peer Changed:", "Detected Peer");
}
// Call WifiP2pManager.requestPeers() to get a list of current peers
} else if (WifiP2pManager.WIFI_P2P_CONNECTION_CHANGED_ACTION.equals(action)) {
// Respond to new connection or disconnections
if (mManager == null) {
return;
}
} else if (WifiP2pManager.WIFI_P2P_THIS_DEVICE_CHANGED_ACTION.equals(action)) {
// Respond to this device's wifi state changing
}
}
}
public类WiFiDirectBroadcastReceiver扩展了BroadcastReceiver{
私有WifiP2pManager-mManager;
私有WifiP2pManager.Channel mcchannel;
私人活动能力;
WifiP2pManager.peerListener mypeerListener;
私有列表对等方=新阵列列表