【Android】获取当前连接的wifi IP地址

AndroidManifest.xml文件增加用户权限

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.example.kt292tree"

android:versionCode="1"

android:versionName="1.0" >

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>

<uses-permission android:name="android.permission.INTERNET"></uses-permission>

 

 

private String getlocalip(){ 
WifiManager wifiManager = (WifiManager)getSystemService(Context.WIFI_SERVICE); 
WifiInfo wifiInfo = wifiManager.getConnectionInfo(); 
int ipAddress = wifiInfo.getIpAddress(); 
if(ipAddress==0)return "未连接wifi"; 
return ((ipAddress & 0xff)+"."+(ipAddress>>8 & 0xff)+"." 
+(ipAddress>>16 & 0xff)+"."+(ipAddress>>24 & 0xff)); 
}