Andorid Date, Time picker (DatePicker and Timepicker) features and usage

DatePicker and Timepicker are two easy-to-use controls that are derived from Framelayout, where DatePicker is for the user to select a date and timepicker for the user to select the time

DatePicker and Timepicker on the basis of Framelayout provides a number of methods to obtain the current user selected date, time, if the program needs to get the user selected date, time, You can listen by adding ondatechangedlistener to the DatePicker, adding ontimerchangedlistener for Timepicker

The following is a demonstration of the use of DatePicker and timepicker using an example that allows the user to select a date and time.

Example: User Select Date, time

In order for the user to select a date, the application needs to use both DatePicker and timepicker two components, and to bind listeners to them, the following is the interface layout of the application

Layout of 1.DatePicker Components

<?xml version= "1.0" encoding= "Utf-8"?> <linearlayout
xmlns:android= "http://schemas.android.com/apk/ Res/android "
    android:layout_width=" match_parent "
    android:layout_height=" match_parent "
    android:o rientation= "vertical" >
    <textview 
        android:layout_width= "fill_parent"
        android:layout_height= " Wrap_content "
        android:text=" Select the time to buy this book "/>
    <datepicker 
        android:id=" @+id/datapicker
        " Android:layout_width= "Wrap_content"
        android:layout_height= "wrap_content"
        android:layout_gravity= " Center_horizontal "/>
   
    <edittext 
        android:id=" @+id/show "android:layout_width=" Fill_parent "
        android:layout_height= "wrap_content"
        android:editable= "false"
        android:cursorvisible= "false"
        android:background= "#B7B7B7"/> 
    

</LinearLayout>

Bind a listener for DatePicker

Mainactivity.java

package com.example.date_time;

import java.text.ChoiceFormat;
import java.util.Calendar;

import android.app.Activity;
import android.app.ActionBar;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.DatePicker;
import android.widget.DatePicker.OnDateChangedListener;
import android.widget.EditText;
import android.os.Build;

public class MainActivity extends Activity {
private int year;
private int month;
private int day;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_first);
        DatePicker datapicker = (DatePicker)findViewById(R.id.datapicker);
        //Get the current year, month and day
        Calendar c = Calendar.getInstance();
        year = c.get(Calendar.YEAR);
        month = c.get(Calendar.MONTH);
        day = c.get(Calendar.DAY_OF_MONTH);
        //Initialize the DatePicker component, specify the listener during initialization
        datapicker.init(year, month, day, new OnDateChangedListener() {
To
@Override
public void onDateChanged(DatePicker arg0, int year, int month, int day) {
// TODO Auto-generated method stu
MainActivity.this.year = year;
MainActivity.this.month = month;
MainActivity.this.day = day;
//Display the current date
showDate(year, month, day);
To
}
});
        }
    private void showDate(int year,int month,int day) {
    EditText show = (EditText)findViewById(R.id.show);
    show.setText("The date is"+year+"year"+month+"month"+day+"day");
    }
} 

Here is the result of the run

Well, Timepicker is the same reason, we can try.