ဝိုင္​ဖိုင္​ အဖြင္​့အပိတ္​ သင္​ခန္​းစာ

main.xml
*********
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:id="@+id/btnON"
        android:text="Wifi Open" />

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:id="@+id/btnOFF"
        android:text="Wifi Close" />
</LinearLayout>

MainActivity.java
*****************

import android.content.Context;
import android.net.wifi.WifiManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import android.app.*;

public class MainActivity extends Activity {
 Button varBtnOn, varBtnOff;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        varBtnOn = (Button) findViewById(R.id.btnON);
        varBtnOn.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
     WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
     wifi.setWifiEnabled(true);
     Toast.makeText(getApplicationContext(),"Wifi is ON",Toast.LENGTH_SHORT).show();
    }
   });
        varBtnOff = (Button) findViewById(R.id.btnOFF);
        varBtnOff.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
     WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
     wifi.setWifiEnabled(false);
     Toast.makeText(getApplicationContext(),"Wifi is OFF",Toast.LENGTH_SHORT).show();
    }
   });
    }
}

Minifest==>Permission
***********************

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


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This is BMMA Lessons For Android.