android - How to highlight a button when is pressed? -

i'm making andorid quiz , want highlight button when it's clicked when user lets go of button turns in original colour. see i've set background of button buttons can rounded. i've set in drawable.

<button     android:id="@+id/btn1"     android:background="@drawable/roundedbutton"     android:textcolor="#ffffff"     android:textstyle="italic"     android:layout_width="225sp"     android:layout_margintop="23sp"     android:layout_height="38sp"     android:layout_alignleft="@+id/btn2"     android:layout_below="@+id/textview1"     android:text="button" /> 

roundedbutton.xml

<?xml version="1.0" encoding="utf-8"?>  <shape xmlns:android="http://schemas.android.com/apk/res/android"  android:shape="rectangle" android:padding="10dp">    <solid android:color="#848482"/> <!-- 1 ths color of rounded button -->  <corners android:bottomrightradius="6.5dp" android:bottomleftradius="6.5dp" android:topleftradius="6.5dp" android:toprightradius="6.5dp"/> </shape> 

you can use ontouchlistener or can use selector.

button.setontouchlistener(new ontouchlistener() {  @override public boolean ontouch(view v, motionevent event) {     if (event.getaction() == motionevent.action_down) {             // change color     }     else if (event.getaction() == motionevent.action_up) {             // set normal color     }      return true; } }); 

you can use selector also. borders , rounded rectangle. customize same.

bkg.xml in drawable folder

<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android">     <item android:state_pressed="true"          android:drawable="@drawable/pressed" />     <item  android:state_focused="false"          android:drawable="@drawable/normal" /> </selector> 

normal.xml in drawable folder

<?xml version="1.0" encoding="utf-8"?>    <shape xmlns:android="http://schemas.android.com/apk/res/android"     android:shape="rectangle">    <solid android:color="#0aecbf"/>       <stroke android:width="3dp"         android:color="#0fecff" />    <padding android:left="5dp"          android:top="5dp"          android:right="5dp"          android:bottom="5dp"/>    <corners android:bottomrightradius="7dp"          android:bottomleftradius="7dp"           android:topleftradius="7dp"          android:toprightradius="7dp"/>    </shape>   

pressed.xml in drawable folder

<?xml version="1.0" encoding="utf-8"?>  <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" >    <solid android:color="#ff33ffff" />  <padding android:left="5dp"              android:top="5dp"              android:right="5dp"              android:bottom="5dp"/>      <corners android:bottomrightradius="7dp"              android:bottomleftradius="7dp"               android:topleftradius="7dp"              android:toprightradius="7dp"/>  </shape> 

now set background fro button in xml

     android:background="@drawable/bkg"