wifiandroid源碼

1. 有關android內核的wifi驅動api

通過程序來實現wifi的自動連接。

這兩天對android的wifi功能研究了一下。下面共享出自己封裝的WifiConnect類。（這里參考了ZXing開源項目中wifi模塊）

首先，要了解android關於wifi的API.

如果喜歡看English API，這是android關於wifi的API地址：

http://developer.android.com/reference/android/net/wifi/package-summary.html（配置Wifi，還需要設定許可權，android中關於wifi的API文檔中說明了要添加什麼許可權）

如果一看英語就頭疼，這里有關於wifi的api的中文解釋

http://note.sdo.com/u/1500295617/n/prb71~jGAHfpnM0l000bgN

切入正題,這里貼出一個封裝了的類(WifiConnect)，在實例化WifiConnect對象時，需要傳入一個WifiManager對象。WifiConnect類向外部提供一個Connect方法，參數是無線的SSID，password，還有加密類型。

1. <spanstyle="font-size:18px;">packagecom.example.aptest;
3. importjava.util.List;
5. importandroid.net.wifi.WifiConfiguration;
6. importandroid.net.wifi.WifiManager;
8. publicclassWifiConnect{
9. WifiManagerwifiManager;
11. //定義幾種加密方式，一種是WEP，一種是WPA，還有沒有密碼的情況
12. publicenumWifiCipherType
13. {
14. WIFICIPHER_WEP,WIFICIPHER_WPA,WIFICIPHER_NOPASS,WIFICIPHER_INVALID
15. }
17. //構造函數
18. publicWifiConnect(WifiManagerwifiManager)
19. {
20. this.wifiManager=wifiManager;
21. }
23. //打開wifi功能
24. privatebooleanopenWifi()
25. {
26. booleanbRet=true;
27. if(!wifiManager.isWifiEnabled())
28. {
29. bRet=wifiManager.setWifiEnabled(true);
30. }
31. returnbRet;
32. }
34. //提供一個外部介面，傳入要連接的無線網
35. publicbooleanconnect(StringSSID,StringPassword,WifiCipherTypeType)
36. {
37. if(!this.openWifi())
38. {
39. returnfalse;
40. }
41. //開啟wifi功能需要一段時間(我在手機上測試一般需要1-3秒左右)，所以要等到wifi
42. //狀態變成WIFI_STATE_ENABLED的時候才能執行下面的語句
43. //WifiManager.WIFI_STATE_ENABLING2
44. //WifiManager.WIFI_STATE_ENABLED3
45. System.out.println("wifiManager.getWifiState()"+wifiManager.getWifiState());
46. while(wifiManager.getWifiState()==WifiManager.WIFI_STATE_ENABLING)
47. {
48. System.out.println("wifiManager.getWifiState"+wifiManager.getWifiState());
49. try{
50. //為了避免程序一直while循環，讓它睡個100毫秒在檢測……
51. Thread.currentThread();
52. Thread.sleep(100);
53. }
54. catch(InterruptedExceptionie){
55. }
56. }
58. WifiConfigurationwifiConfig=this.createWifiInfo(SSID,Password,Type);
59. //
60. if(wifiConfig==null)
61. {
62. returnfalse;
63. }
65. WifiConfigurationtempConfig=this.isExsits(SSID);
67. if(tempConfig!=null)
68. {
69. wifiManager.removeNetwork(tempConfig.networkId);
70. }
72. intnetID=wifiManager.addNetwork(wifiConfig);
73. booleanbRet=wifiManager.enableNetwork(netID,false);
74. returnbRet;
75. }
77. //查看以前是否也配置過這個網路
78. (StringSSID)
79. {
80. List<WifiConfiguration>existingConfigs=wifiManager.getConfiguredNetworks();
81. for(:existingConfigs)
82. {
83. if(existingConfig.SSID.equals("""+SSID+"""))
84. {
85. returnexistingConfig;
86. }
87. }
88. returnnull;
89. }
91. (StringSSID,StringPassword,WifiCipherTypeType)
92. {
93. WifiConfigurationconfig=newWifiConfiguration();
94. config.allowedAuthAlgorithms.clear();
95. config.allowedGroupCiphers.clear();
96. config.allowedKeyManagement.clear();
97. config.allowedPairwiseCiphers.clear();
98. config.allowedProtocols.clear();
99. config.SSID="""+SSID+""";
100. if(Type==WifiCipherType.WIFICIPHER_NOPASS)
101. {
102. config.wepKeys[0]="""+""";;
103. config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
104. config.wepTxKeyIndex=0;
106. //或者下面兩段代碼也可以
107. //config.hiddenSSID=true;
108. //config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
109. }
110. elseif(Type==WifiCipherType.WIFICIPHER_WEP)
111. {
112. config.wepKeys[0]="""+Password+""";
113. config.hiddenSSID=true;
114. config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.SHARED);
115. config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
116. config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
117. config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40);
118. config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP104);
119. config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
120. config.wepTxKeyIndex=0;
121. }
122. elseif(Type==WifiCipherType.WIFICIPHER_WPA)
123. {
124. config.preSharedKey="""+Password+""";
125. config.hiddenSSID=true;
126. config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN);
127. config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
128. config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
129. config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);
130. //config.allowedProtocols.set(WifiConfiguration.Protocol.WPA);//這句好像不行
131. config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
132. config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);
133. config.status=WifiConfiguration.Status.ENABLED;
134. }
135. else
136. {
137. returnnull;
138. }
139. returnconfig;
140. }
141. }
142. </span>

2. 在android上查看wifi狀態，代碼如下：

不知道你的程序報的是什麼錯，給你一個例子吧，不過方法和你的有點差別：
public class WifiAdmin {
/**WiFi Manager**/
private WifiManager wifimanager;
/**WiFi Information**/
private WifiInfo wifiinfo;
/**Activity NetWork List**/
private List<ScanResult> netlist;
/**Configured NetWork List**/
private List<WifiConfiguration> connectedlist;
/**WiFi Lock**/
private WifiLock wifilock;

public WifiAdmin(Context context) {
wifimanager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
}

/**
* WiFi Operate
* */
/**Open WiFi**/
public void openWifi() {
if (!wifimanager.isWifiEnabled()) {
wifimanager.setWifiEnabled(true);
}
}
/**Close WiFi**/
public void closeWifi() {
if (wifimanager.isWifiEnabled()) {
wifimanager.setWifiEnabled(false);
}
}
/**WiFi State**/
public int checkState() {
return wifimanager.getWifiState();
}

/**
* WiFiLock Operate
* */
/**Create WiFiLock**/
public void creatWifiLock() {
wifilock = wifimanager.createWifiLock("Test");
}
/**Lock WiFi**/
public void acquireWifiLock() {
wifilock.acquire();
}
/**Clear WiFiLock**/
public void releaseWifiLock() {
if (wifilock.isHeld()) {
wifilock.release();
}
}
/**
* WiFiInfo Operate
* */
/**Get WiFiInfo**/
public WifiInfo getWifiInfo(){
wifiinfo = wifimanager.getConnectionInfo();
return wifiinfo;
}

/**
* NetWork Operate
* */
/**Scan**/
public void startScan() {
wifimanager.startScan();
netlist = wifimanager.getScanResults();
connectedlist = wifimanager.getConfiguredNetworks();
}
/**Get Configured NetWork**/
public List<WifiConfiguration> getConfiguration() {
return connectedlist;
}
/**Get Activity NetWork**/
public List<ScanResult> getWifiList() {
return netlist;
}
/**Connect a NetWork**/
public void connectConfiguration(int index) {
if (index < 0 || index > connectedlist.size()) {
return;
}
wifimanager.enableNetwork(connectedlist.get(index).networkId,true);
}
/**Add a NetWork**/
public void addNetwork(WifiConfiguration wcg) {
int wcgID = wifimanager.addNetwork(wcg);
wifimanager.enableNetwork(wcgID, true);
}
/**DisConnect a NetWork**/
public void disconnectWifi(int netId) {
wifimanager.disableNetwork(netId);
wifimanager.disconnect();
}
}

3. 為什麼Android 源碼裡面找不到WIFI類

SDK API中 Dev Guide中，Wi-Fi Direct

4. Android之WIFI-基礎篇NativeDaemonConnector分析

概述

詳情旦中攔：
註：源碼7.1
1.實現介面Runnable, Handler.Callback, Watchdog.Monitor

2.構造方法

3.run

4.讀處理

5.寫培胡處理。以execute為案例

6.案例

7.總結

8.補充模胡亮點
android.util.LocalLog

5. Android開發如何使用代碼配置手機wifi的pac地址

這里用到的手機型號為魅族M6120，其中的具體步驟如下：

1、打開手機的設置界面，需要選擇無線網路這一項。

6. android 給我一段代碼，點擊一個按鈕，手機就連上指定的wifi

public class HotspotActivity extends Activity {
private WifiManager wifiManager;
private Button open;
private boolean flag=false;

@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//獲取wifi管理服務
wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
open=(Button)findViewById(R.id.open_hotspot);
//通過按鈕事件設置熱點
open.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//如果是打開狀態就關閉，如果是關閉就打開
flag=!flag;
setWifiApEnabled(flag);
}
});
}

// wifi熱點開關
public boolean setWifiApEnabled(boolean enabled) {
if (enabled) { // disable WiFi in any case
//wifi和熱點不能同時打開，所以打開熱點的時候需要關閉wifi
wifiManager.setWifiEnabled(false);
}
try {
//熱點的配置類
WifiConfiguration apConfig = new WifiConfiguration();
//配置熱點的名稱(可以在名字後面加點隨機數什麼的)
apConfig.SSID = "YRCCONNECTION";
//配置熱點的密碼
apConfig.preSharedKey="12122112";
//通過反射調用設置熱點
Method method = wifiManager.getClass().getMethod(
"setWifiApEnabled", WifiConfiguration.class, Boolean.TYPE);
//返回熱點打開狀態
return (Boolean) method.invoke(wifiManager, apConfig, enabled);
} catch (Exception e) {
return false;
}
}
}
在人家網易博客上看到的
博主：bsky

7. android 如何 wifi列表 源碼~

WifiManager wifi_service = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
List<ScanResult> list = wifi_service.getScanResults();
StringBuilder buidler = new StringBuilder();
String result = Constants.EMPTY_STR;
if (list != null) {
for (ScanResult scanResult : list) {
buidler.append(scanResult.BSSID).append(SPLIT_STR);
}
result = buidler.toString();
result = result.substring(0, result.length() - 1);
}

8. 求android仿快牙、茄子快傳之類利用手機wifi熱點進行文件傳輸的項目源碼，很急，求幫助！

X寶去買吧 ，有源碼的網友估計都忙著賺錢呢，