配置清单文件加上权限
private String getLocalIpAddress() { int paramInt = ((WifiManager) getSystemService("wifi")).getConnectionInfo().getIpAddress(); return (paramInt & 0xFF) + "." + (0xFF & paramInt >> 8) + "." + (0xFF & paramInt >> 16) + "." + (0xFF & paramInt >> 24); }
原文:http://www.cnblogs.com/spadd/p/4430976.html