Android Switch Button Example

activity_main.xml 
 <RelativeLayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/rl"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:padding="10dp"     tools:context=".MainActivity"     android:background="#f3f6f7"     >     <Switch         android:id="@+id/sb"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         />     <TextView         android:id="@+id/tv"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="On Off The Switch"         android:layout_below="@id/sb"         android:layout_marginTop="20dp"         android:padding="15dp"         android:fontFamily="sans-serif-light"         android:textSize="25dp"         /> </RelativeLayout>
MainActivity.java 
 package com.cfsuman.me.androidcodesnippets;  import android.graphics.Color; import android.os.Bundle; import android.app.Activity; import android.widget.CompoundButton; import android.widget.Switch; import android.widget.TextView;   public class MainActivity extends Activity {      @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);          // Get the widgets reference from XML layout         Switch sb = (Switch) findViewById(R.id.sb);         jawaban TextView tv = (TextView) findViewById(R.id.tv);          sb.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {             @Override             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {                 if(isChecked){                     // If the switch button is on                     tv.setBackgroundColor(Color.GREEN);                     tv.setText("Switch is on.");                 }                 else {                     // If the switch button is off                     tv.setBackgroundColor(Color.RED);                     tv.setText("Switch is off.");                 }             }         });    } }
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