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我试图创建使用WiFi Direct API的应用程序测试的应用程序。 I“现在用的代码与波纹管2类：如何使用Wi-Fi直接的API
1-类Wi-Fi直连：
package com.example.wifi_direct;
import android.net.wifi.p2p.WifiP2pManager;
import android.net.wifi.p2p.WifiP2pManager.Channel;
import android.os.Bundle;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.IntentFilter;
import android.view.Menu;
public class WifiDirect extends Activity {
WifiP2pManager mManager;
Channel mChannel;
BroadcastReceiver mReceiver;
IntentFilter mIntentFilter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//To register the BroadastReceiver
mManager = (WifiP2pManager) getSystemService(Context.WIFI_P2P_SERVICE);
mChannel = (Channel) mManager.initialize(this, getMainLooper(), null); //It was necessary to make a cast (Channel)
mReceiver = new WiFiBroadcastReceiver(mManager, mChannel, this, this);
//To define the filter in the BroadcastReceiver
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
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
//
@Override
protected void onResume() {
super.onResume();
registerReceiver(mReceiver, mIntentFilter);
}
// unregister the broadcast receiver
@Override
protected void onPause() {
super.onPause();
unregisterReceiver(mReceiver);
}
}
2 - 类WiFiBroadcastReceiver：
package com.example.wifi_direct;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.wifi.p2p.WifiP2pManager;
import android.net.wifi.p2p.WifiP2pManager.Channel;
import android.widget.Toast;
/**
* A BroadcastReceiver that notifies of important Wi-Fi p2p events.
*/
public class WiFiBroadcastReceiver extends BroadcastReceiver {
private WifiP2pManager manager;
private Channel channel;
private WifiDirect activity;
//For toast, add also context
private Context context;
public WiFiBroadcastReceiver(WifiP2pManager manager, Channel channel, WifiDirect activity, Context context) {
super();
this.manager = manager;
this.channel = channel;
this.activity = activity;
this.context= context;
}
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
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) {
Toast.makeText(context, "Wi-Fi Direct is enable", Toast.LENGTH_LONG).show();
System.out.print("ddddddddddddddd");
} else {
System.out.print("ddddvvvvvvvdddd");
Toast.makeText(context, "Wi-Fi Direct is not enable", Toast.LENGTH_LONG).show();
}
} else if (WifiP2pManager.WIFI_P2P_PEERS_CHANGED_ACTION.equals(action)) {
// 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
} else if (WifiP2pManager.WIFI_P2P_THIS_DEVICE_CHANGED_ACTION.equals(action)) {
// Respond to this device's wifi state changing
}
}
}
我'初学者在使用此API，和我想知道如何测试是否启用Wi-Fi或没有。（我应该在我的活动做，看看是否能工程或没有），感谢广泛。