Snail bait-Android basic button listener

The XML file contains a textView and a button.

Java files

Package com. wjj. day_01_genesis; import android. app. activity; import android. graphics. color; import android. OS. bundle; import android. view. menu; import android. view. view; import android. view. view. onClickListener; import android. widget. button; import android. widget. textView; public class MainActivity extends Activity {private TextView textView; private Button button; int count = 0; @ Overrideprotected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. activity_main); // sets the layout file textView = (TextView) findViewById (R. id. textView); // locate the text textView. setBackgroundColor (Color. BLUE); // set the color of the text background. button = (Button) findViewById (R. id. button); // find the button buttonOnClickLisnter lisnter = new buttonOnClickLisnter (); // a listener button is first recognized. setOnClickListener (lisnter); // set listener for button} class buttonOnClickLisnter implements OnClickListener {// implement OnClickListener interface @ Overridepublic void onClick (View view) {// this method is called when the button bound to this listener is pressed. // TODO Auto-generated method stubcount ++; textView. setText (count + ""); // set text display }}@ Overridepublic boolean onCreateOptionsMenu (Menu menu) {// Inflate the menu; this adds items to the action bar if it is present. getMenuInflater (). inflate (R. menu. main, menu); return true ;}}