TimePicker示例

//TimePicker-----------MainActivity.java-----------------package com.example.gby.s01_e16_timepicker;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.TimePicker;import java.sql.Time;public class MainActivity extends AppCompatActivity {    private TimePicker firstTimePicker;    private Button button;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        firstTimePicker = (TimePicker)findViewById(R.id.firstTimePicker);//声明并获取在XML中声明的TimePicker的ID        button = (Button)findViewById(R.id.button);        firstTimePicker.setIs24HourView(true);//24小时显示        TimeListener timeListener = new TimeListener();//实例化        firstTimePicker.setOnTimeChangedListener(timeListener);//绑定        ButtonListener buttonListener = new ButtonListener();//实例化        button.setOnClickListener(buttonListener);//绑定    }    class ButtonListener implements View.OnClickListener{        @Override        public void onClick(View view) {            int hour =firstTimePicker.getCurrentHour()  ;            int minute =firstTimePicker.getCurrentMinute();            System.out.println("h:"+hour+"m:"+minute);        }    }    class TimeListener implements TimePicker.OnTimeChangedListener{        /**         * @param timePicker 该对象代表着 timePicker         * @param hourOfDay 用户所选择的小时         * @param minute 用户所选择的分钟         */        @Override        public void onTimeChanged(TimePicker timePicker, int hourOfDay, int minute) {            System.out.println("Hour:"+hourOfDay+ ",minute:" +minute);        }    }}

----------------activity.xml---------------<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context="com.example.gby.s01_e16_timepicker.MainActivity">    <TimePicker        android:id="@+id/firstTimePicker"        android:layout_width="wrap_content"        android:layout_height="wrap_content"></TimePicker>    <Button        android:id="@+id/button"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@id/firstTimePicker"        android:text="获取TimePicker的值"        /></RelativeLayout>