近期在搗鼓一個小項目,利用wifi熱點在兩手機上傳輸文件。進度有點慢,下面是遇到的一些小問題:
1獲取手機所連接的wifi路由器ip:
ublic class MainActivity extends Activity {
private WifiManager my_wifiManager;
private WifiInfo wifiInfo;
private DhcpInfo dhcpInfo;
private TextView tvResult;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
my_wifiManager = ((WifiManager) getSystemService("wifi"));
dhcpInfo = my_wifiManager.getDhcpInfo();
wifiInfo = my_wifiManager.getConnectionInfo();
tvResult = (TextView) findViewById(R.id.tvResult);
}
@Override
protected void onResume() {
super.onResume();
StringBuilder sb = new StringBuilder();
sb.append("網絡信息:");
sb.append("\nipAddress:" + intToIp(dhcpInfo.ipAddress));
sb.append("\nnetmask:" + intToIp(dhcpInfo.netmask));
sb.append("\ngateway:" + intToIp(dhcpInfo.gateway));
sb.append("\nserverAddress:" + intToIp(dhcpInfo.serverAddress));
sb.append("\ndns1:" + intToIp(dhcpInfo.dns1));
sb.append("\ndns2:" + intToIp(dhcpInfo.dns2));
sb.append("\n");
System.out.println(intToIp(dhcpInfo.ipAddress));
System.out.println(intToIp(dhcpInfo.netmask));
System.out.println(intToIp(dhcpInfo.gateway));
System.out.println(intToIp(dhcpInfo.serverAddress));
System.out.println(intToIp(dhcpInfo.dns1));
System.out.println(intToIp(dhcpInfo.dns2));
System.out.println(dhcpInfo.leaseDuration);
sb.append("Wifi信息:");
sb.append("\nIpAddress:" + intToIp(wifiInfo.getIpAddress()));
sb.append("\nMacAddress:" + wifiInfo.getMacAddress());
tvResult.setText(sb.toString());
}
private String intToIp(int paramInt) {
return (paramInt & 0xFF) + "." + (0xFF & paramInt >> 8) + "." + (0xFF & paramInt >> 16) + "."
+ (0xFF & paramInt >> 24);
}
}
項目思路:
思路一:手機A在創建熱點後,開啓tcp服務等待請求,手機B連上手機A的wifi熱點後,B向A發送上線請求(單播)。
思路二:1.開啓熱點一方使用開啓udp監聽請求,並且發送上線請求(廣播);接下來連上該熱點的手機同樣採用這個方式,1監聽–2廣播;這樣的好處是大家都知道對方的存在,是真正意義的羣聊。2.發送文件階段,發送方A先向接收方B方發送文件的數量以及名稱等參數,發送方A並建立TCP服務等待請求,接收方發送N個數量的請求,發送方A相應創建N個線程發送文件。
今天先寫這麼多。。。看看資料先
項目github連接:https://github.com/AriesJiang/WIFIAPComm