Three ways to implement and debug information output in three Ways of monitoring button click events

Three ways to listen for button click events:

1. Anonymous inner class

2. External Independent class

3. Interface implementation

 PackageCom.example.button;Importandroid.support.v7.app.ActionBarActivity;ImportAndroid.os.Bundle;ImportAndroid.util.Log;ImportAndroid.view.Menu;ImportAndroid.view.MenuItem;ImportAndroid.view.View;ImportAndroid.view.View.OnClickListener;ImportAndroid.widget.Button;ImportAndroid.widget.Toast; Public classMainactivityextendsActionbaractivityImplementsOnclicklistener//interface Mode{    PrivateButton btn; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);                Setcontentview (R.layout.activity_main); //initializing a Button controlBTN =(Button) Findviewbyid (R.id.button1); //Anonymous Inner class//Btn.setonclicklistener (New Onclicklistener ()//        {//            //@Override//Public void OnClick (View v)//            {//                //TODO auto-generated Method Stub//System.out.println (1);//Toast.maketext (Getapplicationcontext (), "Fejasljetgi", Toast.length_short). Show ();//            }//        }); //Standalone class implementation//Btn.setonclicklistener (Lister); //Interface ImplementationBtn.setonclicklistener ( This); }        //Standalone class implementation//Onclicklistener lister = new Onclicklistener ()//    {//        //@Override//Public void OnClick (View v)//        {//            //TODO auto-generated Method Stub//Toast.maketext (Getapplicationcontext (), "FDASFG", Toast.length_short). Show ();//            //        }//    }; //Interface Implementation@Override Public voidOnClick (View v) {//TODO auto-generated Method StubLOG.I ("tag", "Message"); }}

Three ways to debug information output:

1. Direct print, view in Logcat

SYSTEM.OUT.PRINTLN (1);

2. Generate categorical Debug text in Logcat view

LOG.I ("tag", "message");

3.toast out

Toast.maketext (Getapplicationcontext (), "FDASFG", Toast.length_short). Show ();

Three ways to implement and debug information output in three Ways of monitoring button click events