Example to get connected WiFi information using WifiManager and WifiInfo.
package com.example.androidwifisetting;
import android.support.v7.app.ActionBarActivity;
import android.content.Context;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.widget.TextView;
/*
* Permission needed:
* android.permission.ACCESS_WIFI_STATE
*
* minSdkVersion="21"
* for WifiInfo.getFrequency()
*/
public class MainActivity extends ActionBarActivity {
TextView textWifiInfo;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textWifiInfo = (TextView)findViewById(R.id.wifiinfo);
String strWifiInfo = "";
WifiManager wifiManager = (WifiManager)getSystemService(Context.WIFI_SERVICE);
WifiInfo connectionInfo = wifiManager.getConnectionInfo();
int ipAddress = connectionInfo.getIpAddress();
String ipString = String.format("%d.%d.%d.%d",
(ipAddress & 0xff),
(ipAddress >> 8 & 0xff),
(ipAddress >> 16 & 0xff),
(ipAddress >> 24 & 0xff));
final int NumOfRSSILevels = 5;
strWifiInfo +=
"SSID: " + connectionInfo.getSSID() + "\n" +
"BSSID: " + connectionInfo.getBSSID() + "\n" +
"IP Address: " + ipString + "\n" +
"MAC Address: " + connectionInfo.getMacAddress() + "\n" +
"Frequency: " + connectionInfo.getFrequency() + WifiInfo.FREQUENCY_UNITS + "\n" +
"LinkSpeed: " + connectionInfo.getLinkSpeed() + WifiInfo.LINK_SPEED_UNITS + "\n" +
"Rssi: " + connectionInfo.getRssi() + "dBm" + "\n" +
"Rssi Level: " +
WifiManager.calculateSignalLevel(connectionInfo.getRssi(), NumOfRSSILevels) +
" of " + NumOfRSSILevels;
textWifiInfo.setText(strWifiInfo);
}
}
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:orientation="vertical"
tools:context="com.example.androidwifisetting.MainActivity" >
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:autoLink="web"
android:text="http://android-er.blogspot.com/"
android:textStyle="bold" />
<TextView
android:id="@+id/wifiinfo"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20dp"
android:textStyle="bold" />
</LinearLayout>
3 comments:
Very useful example. Thank you.
One note: the RSSI levels are calculated based on a zero-index; so if there are 5 levels (NumOfRSSILevels), the results can be 0,1,2,3 or 4 (never 5).
Cheers!
Hi Erik how are you? please put wifi nanager apk (no source code) becuase i eant to test this but i have not a pc
and thanks!
Hi Erik please but apk file becuase i want to test this app but i have not a pc
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