如何连接到一个无线ScanResult项目 [英] How to connect to a Wifi ScanResult item
本文介绍了如何连接到一个无线ScanResult项目的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想要创建一个自定义WifiSettings。
我创建活动：
包手册;
进口的java.util.ArrayList;
进口的java.util.HashMap;
进口的java.util.List;
进口android.app.Activity;
进口android.content.BroadcastReceiver;
进口android.content.Context;
进口android.content.Intent;
进口android.content.IntentFilter;
进口android.net.wifi.ScanResult;
进口android.net.wifi.WifiConfiguration;
进口android.net.wifi.WifiManager;
进口android.os.Bundle;
进口android.util.Log;
进口android.view.View;
进口android.view.View.OnClickListener;
进口android.widget.AdapterView;
进口android.widget.Button;
进口android.widget.CompoundButton;
进口android.widget.CompoundButton.OnCheckedChangeListener;
进口android.widget.ImageButton;
进口android.widget.ListView;
进口android.widget.SimpleAdapter;
进口android.widget.Switch;
进口android.widget.TextView;
进口android.widget.Toast;公共类WiFiDemo扩展活动实现OnClickListener
{
WifiManager无线网络;
LV的ListView;
TextView的textStatus;
按钮buttonScan;
切换使能;
INT大小= 0;
清单＆LT; ScanResult＆GT;结果; 字符串ITEM_KEY =钥匙;
ArrayList的＆LT;＆HashMap的LT;字符串，字符串＆GT;＆GT; ArrayList的=新的ArrayList＆LT;＆HashMap的LT;字符串，字符串＆GT;＆GT;（）;
SimpleAdapter适配器; / *当第一次创建活动调用。 * /
@覆盖
公共无效的onCreate（捆绑savedInstanceState）
{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.wifi）;
buttonScan =（按钮）findViewById（R.id.updateWifi）;
buttonScan.setOnClickListener（本）;
使=（开关）findViewById（R.id.switch1）;
LV =（ListView控件）findViewById（R.id.listView1）; 无线=（WifiManager）getSystemService（Context.WIFI_SERVICE）;
enable.setChecked（wifi.isWifiEnabled（））;
enable.setOnCheckedChangeListener（新OnCheckedChangeListener（）{
@覆盖
公共无效onCheckedChanged（CompoundButton compoundbutton，布尔标志）{
wifi.setWifiEnabled（标志）;
如果（标志）{
arraylist.clear（）;
lv.setVisibility（View.VISIBLE）;
buttonScan.setEnabled（真）;
wifi.startScan（）;
}其他{
lv.setVisibility（View.INVISIBLE）;
buttonScan.setEnabled（假）;
}
}
}）;
this.adapter =新SimpleAdapter（WiFiDemo.this，ArrayList中，R.layout.wifi_item，新的String [] {} ITEM_KEY，新的INT [] {R.id.list_value}）;
lv.setAdapter（this.adapter）;
lv.setOnClickListener（新View.OnClickListener（）{
@覆盖
公共无效的onClick（查看视图）{
INT A = lv.getSelectedItemPosition（）; }
}）; registerReceiver（新广播接收器（）
{
@覆盖
公共无效的onReceive（上下文C，意图意图）
{
结果= wifi.getScanResults（）;
大小= results.size（）;
的for（int i =大小-1; I＆GT; = 0; I - ）{
HashMap的＆LT;字符串，字符串＆GT;项目=新的HashMap＆LT;字符串，字符串＆GT;（）;
item.put（ITEM_KEY，results.get（ⅰ）.SSID）;
arraylist.add（项目）;
}
如果（大小大于0）
adapter.notifyDataSetChanged（）;
}
}，新的IntentFilter（WifiManager.SCAN_RESULTS_AVAILABLE_ACTION））;
} 公共无效的onClick（查看视图）
{
arraylist.clear（）;
wifi.startScan（）;
Toast.makeText（这一点，扫描......，Toast.LENGTH_SHORT）.show（）; }
}
当用户点击的ListView的一个项目，它需要连接到无线网络，以便
lv.setOnClickListener（新View.OnClickListener（）{
@覆盖
公共无效的onClick（查看视图）{
INT A = lv.getSelectedItemPosition（）;
ScanResult wifiChoosed = results.get（一）;
//我需要在这里做？
}
}）;
我需要 ScanResult wifiChoosed = results.get做什么（一）; 来连接到WLAN
解决方案
WifiManager wifiManager =（WifiManager）getSystemService（Context.WIFI_SERVICE）;
//设置一个无线网络配置
WifiConfiguration WC =新WifiConfiguration（）;
wc.SSID =\\YOUR_SSID \\;
。WC preSharedKey =\\YOUR_PASSWORD \\;
wc.status = WifiConfiguration.Status.ENABLED;
wc.allowedGroupCiphers.set（WifiConfiguration.GroupCipher.TKIP）;
wc.allowedGroupCiphers.set（WifiConfiguration.GroupCipher.CCMP）;
wc.allowedKeyManagement.set（WifiConfiguration.KeyMgmt.WPA_PSK）;
wc.allowedPairwiseCiphers.set（WifiConfiguration.PairwiseCipher.TKIP）;
wc.allowedPairwiseCiphers.set（WifiConfiguration.PairwiseCipher.CCMP）;
wc.allowedProtocols.set（WifiConfiguration.Protocol.RSN）;
//连接到并启用连接
INT NETID = wifiManager.addNetwork（WC）;
wifiManager.enableNetwork（NETID，真）;
wifiManager.setWifiEnabled（真）;
i'm trying to create a custom WifiSettings.
I create an activity:
package manual;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Switch;
import android.widget.TextView;
import android.widget.Toast;
public class WiFiDemo extends Activity implements OnClickListener
{
WifiManager wifi;
ListView lv;
TextView textStatus;
Button buttonScan;
Switch enable;
int size = 0;
List<ScanResult> results;
String ITEM_KEY = "key";
ArrayList<HashMap<String, String>> arraylist = new ArrayList<HashMap<String, String>>();
SimpleAdapter adapter;
/* Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.wifi);
buttonScan = (Button) findViewById(R.id.updateWifi);
buttonScan.setOnClickListener(this);
enable = (Switch) findViewById(R.id.switch1);
lv = (ListView)findViewById(R.id.listView1);
wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
enable.setChecked(wifi.isWifiEnabled());
enable.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundbutton, boolean flag) {
wifi.setWifiEnabled(flag);
if(flag){
arraylist.clear();
lv.setVisibility(View.VISIBLE);
buttonScan.setEnabled(true);
wifi.startScan();
}else{
lv.setVisibility(View.INVISIBLE);
buttonScan.setEnabled(false);
}
}
});
this.adapter = new SimpleAdapter(WiFiDemo.this, arraylist, R.layout.wifi_item, new String[] { ITEM_KEY }, new int[] { R.id.list_value });
lv.setAdapter(this.adapter);
lv.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
int a = lv.getSelectedItemPosition();
}
});
registerReceiver(new BroadcastReceiver()
{
@Override
public void onReceive(Context c, Intent intent)
{
results = wifi.getScanResults();
size = results.size();
for(int i=size-1;i>=0;i--){
HashMap<String, String> item = new HashMap<String, String>();
item.put(ITEM_KEY, results.get(i).SSID);
arraylist.add(item);
}
if(size>0)
adapter.notifyDataSetChanged();
}
}, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));
}
public void onClick(View view)
{
arraylist.clear();
wifi.startScan();
Toast.makeText(this, "Scanning....", Toast.LENGTH_SHORT).show();
}
}
When an user clicks on an item of ListView, it needs to connect to that wifi so
lv.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
int a = lv.getSelectedItemPosition();
ScanResult wifiChoosed = results.get(a);
//WHAT I NEED TO DO HERE?
}
});
What i need to do with ScanResult wifiChoosed = results.get(a); to connect to wifi?
解决方案
WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
// setup a wifi configuration
WifiConfiguration wc = new WifiConfiguration();
wc.SSID = "\"YOUR_SSID\"";
wc.preSharedKey = "\"YOUR_PASSWORD\"";
wc.status = WifiConfiguration.Status.ENABLED;
wc.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
wc.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
wc.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
wc.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);
wc.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);
wc.allowedProtocols.set(WifiConfiguration.Protocol.RSN);
// connect to and enable the connection
int netId = wifiManager.addNetwork(wc);
wifiManager.enableNetwork(netId, true);
wifiManager.setWifiEnabled(true);
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