HTC Android Hotspot 熱點配置 之DHCP

最近在研究手機熱點的建立。HTC手機比較坑爹，首先一個，是不能按常規的辦法修改 SSID, BSSID,

在網上搜了下，有篇博客把這個問題解決了，請參考：http://blog.sina.com.cn/s/blog_adc221ac01011mrs.html

然後就發現HTC手機熱點是建好了，但是其他手機去連它，怎麼也連不上，後來發現，使用靜態IP能解決這個問題，但太麻煩了。

研究了下通過手動配置HTC的WiFi熱點程序 com.htc.WiFiRouter 裏面有一個Local DHCP的配置,把它勾上就能自動獲取IP。

但要怎麼樣用代碼實現呢這下坑爹了。

研究了半天，還是隻有把HTC獨有的類給它全部dump出來，代碼如下

public void dumpHTCWifiFunction2(){
    	 Log.e(TAG, "dumpHTCWifiFunction2++");
//    	Method[] classMethods = null;
    	Field localField1;
    	
    	Field[] fieldlist;
    	WifiConfiguration apConfig = new WifiConfiguration();
    	try {
			localField1 = WifiConfiguration.class.getDeclaredField("mWifiApProfile");
			  localField1.setAccessible(true);

		        Object localObject2 = localField1.get(apConfig);

		        localField1.setAccessible(false);
		        
		        if(localObject2!=null){
		        	fieldlist = localObject2.getClass().getDeclaredFields();
		        	
		        	for (int i = 0;i < fieldlist.length; i++)

		            {

		                Log.e(TAG, "found api: "+ fieldlist[i].getName());

		            }
		        }
		        
		        
		} catch (NoSuchFieldException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IllegalArgumentException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

    	Log.e(TAG, "dumpHTCWifiFunction2--");
    }

12-28 11:06:29.956: E/MainActivity(3253): dumpHTCWifiFunction2++
12-28 11:06:29.966: E/MainActivity(3253): found api: DEFAULT_DHCP_MAX_AP_CONNECTION
12-28 11:06:29.966: E/MainActivity(3253): found api: DEFAULT_MAX_AP_CONNECTION
12-28 11:06:29.976: E/MainActivity(3253): found api: DHCP_MAX_AP_CONNECTION
12-28 11:06:29.976: E/MainActivity(3253): found api: MAX_AP_CONNECTION
12-28 11:06:29.976: E/MainActivity(3253): found api: OPEN
12-28 11:06:29.976: E/MainActivity(3253): found api: WEP
12-28 11:06:29.986: E/MainActivity(3253): found api: WPA
12-28 11:06:29.986: E/MainActivity(3253): found api: WPA2
12-28 11:06:29.986: E/MainActivity(3253): found api: BSSID
12-28 11:06:29.996: E/MainActivity(3253): found api: SSID
12-28 11:06:29.996: E/MainActivity(3253): found api: blocklist
12-28 11:06:29.996: E/MainActivity(3253): found api: whitelist
12-28 11:06:29.996: E/MainActivity(3253): found api: this$0
12-28 11:06:30.006: E/MainActivity(3253): found api: startingIP
12-28 11:06:30.006: E/MainActivity(3253): found api: dhcpSubnetMask
12-28 11:06:30.016: E/MainActivity(3253): found api: dnsIPAddr1
12-28 11:06:30.016: E/MainActivity(3253): found api: dnsIPAddr2
12-28 11:06:30.016: E/MainActivity(3253): found api: secureType
12-28 11:06:30.016: E/MainActivity(3253): found api: key
12-28 11:06:30.016: E/MainActivity(3253): found api: ipAddress
12-28 11:06:30.016: E/MainActivity(3253): found api: hiddenSSID
12-28 11:06:30.016: E/MainActivity(3253): found api: maxConns
12-28 11:06:30.016: E/MainActivity(3253): found api: maxDhcpClients
12-28 11:06:30.026: E/MainActivity(3253): found api: enableMacFilter
12-28 11:06:30.026: E/MainActivity(3253): found api: sleepPolicy
12-28 11:06:30.026: E/MainActivity(3253): found api: dhcpEnable
12-28 11:06:30.026: E/MainActivity(3253): found api: connectionArray
12-28 11:06:30.026: E/MainActivity(3253): found api: channel
12-28 11:06:30.026: E/MainActivity(3253): dumpHTCWifiFunction2--

發現了 dhcpEnable 這個成員變量，剛開始猜它是boolean變量，但錯了，在設置的時候會發生錯誤。

乾脆把它的類型也打印出來吧，打印語句改爲：

Log.e(TAG, "found api: "+ fieldlist[i].getName()+" type:"+fieldlist[i].toString());

found api: dhcpEnable type:public int android.net.wifi.WifiConfiguration$HotspotProfile.dhcpEnable

原來它是int型變量,估且猜它是1爲enable. 設置之後，果然可以。

完整代碼如下：

private boolean setWifiSSIDForHTC(WifiConfiguration apConfig) {
	    boolean successed = true;
	    
//	    WifiConfiguration mnetConfig = new WifiConfiguration();
	    Field localField1;

	                    try {

	                        localField1 = WifiConfiguration.class.getDeclaredField("mWifiApProfile");

	                        localField1.setAccessible(true);

	                        Object localObject2 = localField1.get(apConfig);

	                        localField1.setAccessible(false);
	                        if(localObject2!=null){

	                            Field localField5 = localObject2.getClass().getDeclaredField("SSID");

	                            localField5.setAccessible(true);

	                            localField5.set(localObject2, apConfig.SSID);// netConfig.SSID);

	                            localField5.setAccessible(false);

	                            Field localField4 = localObject2.getClass().getDeclaredField("BSSID");

	                            localField4.setAccessible(true);

	                            localField4.set(localObject2, apConfig.BSSID);//netConfig.BSSID);

	                            localField4.setAccessible(false);
	                            
	                            Field localField6 = localObject2.getClass().getDeclaredField("dhcpEnable");

                                localField6.setAccessible(true);

//                                localField6.set(localObject2, "true");//netConfig.BSSID);
                                localField6.setInt(localObject2, 1);

                                localField6.setAccessible(false);

	                        }

	                    } catch(Exception e) {

	                        e.printStackTrace();

	                    }
	    return successed;
	}