1-日期时间视图 2-长按事件

日期时间
日历视图 CalendarView
firstDayOfWeek 设置以星期几作为开始
1-星期日；2-星期一；以此类推
日期范围
maxDate 最大日期
minDate 最小日期
设置形式
mm/dd/yyyy
监听器
CalendarView.OnDateChangeListener()
onSelectedDayChange(CalendarView view, int year, int month, int dayOfMonth)
month，从0开始表示1月份
日期选择器 DatePicker
日期范围
maxDate 最大日期
minDate 最小日期
设置形式
mm/dd/yyyy
startYear 可选的开始年度
endYear 可选的结束年度
calendarViewShown是否显示日历组件
以上属性设置在4.X下有效
监听器
初始化 init（年，月，日，监听器的实现类的实例）
时间选择器
setIs24HourView(true/false) 设置是否以24小时制显示
监听器
TimePicker.OnTimeChangedListener()
onTimeChanged(TimePicker view, int hourOfDay, int minute)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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.hanqi.testapp2.TestActivity2"
    android:orientation="vertical">

    <CalendarView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:firstDayOfWeek="2"
        android:maxDate="12/31/2016"
        android:minDate="01/01/2016"
        android:id="@+id/cv_1"
        android:visibility="gone">
    </CalendarView>

    <DatePicker
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:calendarViewShown="false"
        android:startYear="2010"
        android:endYear="2020"
        android:maxDate="01/01/2018"
        android:minDate="01/01/2015"
        android:id="@+id/dp_1"
        android:visibility="gone">

    </DatePicker>

    <TimePicker
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/tp_1">

    </TimePicker>

</LinearLayout>

package com.hanqi.testapp2;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.CalendarView;
import android.widget.DatePicker;
import android.widget.TimePicker;
import android.widget.Toast;

public class TestActivity2 extends AppCompatActivity {

    CalendarView cv_1;

    DatePicker dp_1;

    TimePicker tp_1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_test2);

        cv_1=(CalendarView)findViewById(R.id.cv_1);

        cv_1.setOnDateChangeListener(new CalendarView.OnDateChangeListener() {
            @Override
            public void onSelectedDayChange(CalendarView view, int year, int month, int dayOfMonth) {

                Toast.makeText(TestActivity2.this, "选中的日期是"+year+"-"+(month+1)+"-"+dayOfMonth, Toast.LENGTH_SHORT).show();
            }
        });

        dp_1=(DatePicker)findViewById(R.id.dp_1);

        //初始化日期选择器
        dp_1.init(2015, 0, 1, new DatePicker.OnDateChangedListener() {
            @Override
            public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {

                Toast.makeText(TestActivity2.this, "选中的日期是"+year+"-"+(monthOfYear+1)+"-"+dayOfMonth, Toast.LENGTH_SHORT).show();
            }
        });

        tp_1=(TimePicker)findViewById(R.id.tp_1);

        tp_1.setIs24HourView(true);

        tp_1.setOnTimeChangedListener(new TimePicker.OnTimeChangedListener() {
            @Override
            public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {

                Toast.makeText(TestActivity2.this, "选择的时间是"+hourOfDay+":"+minute, Toast.LENGTH_SHORT).show();
            }
        });
    }

}

回调方法
负责处理事件
由监听器监听到事件之后自动调用
有的回调方法带boolean的返回值
表示事件是否不需要再被其他监听器处理了
true 表示不需要

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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.hanqi.testapp2.TestActivity3"
    android:orientation="vertical">

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="按钮"
        android:id="@+id/bt_1" />

</LinearLayout>

package com.hanqi.testapp2;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class TestActivity3 extends AppCompatActivity {

    Button bt_1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_test3);

        bt_1=(Button)findViewById(R.id.bt_1);

        //点击
        bt_1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                Toast.makeText(TestActivity3.this, "按钮被点击了", Toast.LENGTH_SHORT).show();
            }
        });

        //长按
        bt_1.setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {

                Toast.makeText(TestActivity3.this, "按钮被长按了", Toast.LENGTH_SHORT).show();

                //事件是否已经被消费
                return true;
            }
        });
    }
}