如何创建一个按下按钮进入日历视图，允许用户选择日期？

Question

如何在按下按钮时进入日历视图，允许用户选择日期？ （在主要活动和XML中）

Answer 1

有没有必要添加库，当你可以自己做.....我在这里使用了editText，你可以做任何事情，图像，按钮，文本视图

MainActivity

public class MainActivity extends AppCompatActivity { 


    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     final EditText editText = (EditText) findViewById(R.id.editText); 

     editText.setOnClickListener(new View.OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       // TODO Auto-generated method stub 
       //To show current date in the datepicker 
       Calendar mcurrentDate=Calendar.getInstance(); 
       int year = mcurrentDate.get(Calendar.YEAR); 
       int month = mcurrentDate.get(Calendar.MONTH); 
       int day = mcurrentDate.get(Calendar.DAY_OF_MONTH); 

       DatePickerDialog mDatePicker=new DatePickerDialog(MainActivity.this, new DatePickerDialog.OnDateSetListener() { 
        public void onDateSet(DatePicker datepicker, int selectedYear, int selectedMonth, int selectedDay) { 
         // TODO Auto-generated method stub 
        /*  Your code to get date and time */ 
         Log.e("Date Selected", "Month: " + selectedMonth + " Day: " + selectedDay + " Year: " + selectedYear); 
         editText.setText(selectedMonth + "/" + selectedDay + "/" + selectedYear); 
        } 
       },year, month, day); 
       mDatePicker.setTitle("Select date"); 
       mDatePicker.show(); 
      } 
     }); 

    } 
} 

XML

<?xml version="1.0" encoding="utf-8"?> 
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    tools:context="com.vzw.www.myapplication.MainActivity"> 

<EditText 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:id="@+id/editText"/> 

</android.support.constraint.ConstraintLayout>