java - Change layout defined in activity to xml layout -


i attempting use of google's code audio capture sample code. simplified heck out of code , made layout within class. want have actual xml layout. know how part, know how change code below onclick method , have functionality provided it.

class playbutton extends button {           boolean mstartplaying = true;        onclicklistener clicker = new onclicklistener() {           public void onclick(view v) {                       onplay(mstartplaying);                         if (mstartplaying) {                               settext("stop playing");                     } else {                               settext("start playing");                  }                       mstartplaying = !mstartplaying;               }           };            public playbutton(context ctx) {            super(ctx);                    settext("start playing");               setonclicklistener(clicker);         }    }

any appreciated.

in layout file, you'll have like...

<linearlayout>    <button android:id="play_button"/> </linearlayout>

in activity, oncreate(), can like..

onclicklistener clicker = new onclicklistener() {       public void onclick(view v) {                   onplay(mstartplaying);                     if (mstartplaying) {                           settext("stop playing");                 } else {                           settext("start playing");              }                   mstartplaying = !mstartplaying;           }       };       button b = findviewbyid(r.id.play_button); b.setonclicklistener(clicker);

alternately, can define method in xml layout called in activity...

<linearlayout>    <button android:id="play_button" onclick="play"/> </linearlayout>

and in activity create method, called play(view view)

public void play(view view) {             onplay(mstartplaying);                         if (mstartplaying) {                               settext("stop playing");                     } else {                               settext("start playing");                  }                       mstartplaying = !mstartplaying;       }

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