Android listener instance code

Code sharing:

import ;

import ;
import ;
import ;
import ;

public class MainActivity extends AppCompatActivity {

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    (savedInstanceState);
    setContentView(.activity_main);
    Button button1=(Button)findViewById(.button1);

    (new ()
    {@Override
    public void onClick(View v)
    {
      Intent intent=new Intent(,);
      startActivity(intent);
    }});

The package behind the import will automatically be given to you after the system reports an error.

Pay attention to upper and lower case. Be careful not to rename it. Try to follow the actual meaning of the name

During Android application development, commonly used listening events are as follows:

(1) ListView event listening
setOn ItemSelectedListener: Triggered when the mouse is scrolling
setOnItemClickListener: Triggered when clicked

(2) EditText event listening
setOnKeyListener: Triggered when getting focus

(3) RadioGroup event monitoring
setOnCheckedChangeListener: Triggered when clicked

(4) CheckBox event monitoring
setOnCheckedChangeListener: Triggered when clicked

(5) Spinner event monitoring
setOnltemSelectedListener: Triggered when clicked

(6) DatePicker event listening

onDateChangedListener: Triggered when the date changes

(7)DatePickerDialog event listening
onDateSetListener: Triggered when setting date

(8) TimePicker event listening
onTimeChangedListener: Triggered when time changes

(9)TimePickerDialog event listening
onTimeSetListener: Triggered when setting time

(10) Event monitoring
setOnClickListener: Triggered when clicked

(11) Menu event monitoring
onOptionsltemSelected; Triggered when clicked

(12)Gallery Event Monitoring
setOnItemClickListener: Triggered when clicked

(13)GridView event listening
setOnltemClickListener: Triggered when clicked

The above is the relevant knowledge points and articles about Android monitors introduced this time. Thank you for your learning and support.