18.鸿蒙HarmonyOS App(JAVA)日期选择器-时间选择器

点击button按钮触发事件显示月份与获取的时间

Button button3 = (Button) findComponentById(ResourceTable.Id_button3);
        button3.setClickedListener(new Component.ClickedListener() {
            @Override
            public void onClick(Component component) {
                String time2_h = String.valueOf(timePicker.getHour()) ;
                String time2_m = String.valueOf(timePicker.getMinute()) ;
                String time2_s = String.valueOf(timePicker.getSecond()) ;
                new ToastDialog(getContext())
                        .setText("获取时间为："+time2_h+":"+time2_m+":"+time2_s)
                        .setAlignment(LayoutAlignment.BOTTOM)
                        .show();
            }
        });

支持的XML属性

DatePicker的共有XML属性继承自：StackLayout

DatePicker的自有XML属性见下表：

TimePicker的自有XML属性见下表：

MainAbilitySlice.java

package com.example.myapplication.slice;

import com.example.myapplication.ResourceTable;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
import ohos.agp.colors.RgbColor;
import ohos.agp.components.Button;
import ohos.agp.components.Component;
import ohos.agp.components.DatePicker;
import ohos.agp.components.TimePicker;
import ohos.agp.components.element.ShapeElement;
import ohos.agp.utils.Color;
import ohos.agp.utils.LayoutAlignment;
import ohos.agp.window.dialog.ToastDialog;

public class MainAbilitySlice extends AbilitySlice {
    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_ability_main);
        DatePicker datePicker = (DatePicker) findComponentById(ResourceTable.Id_date_picker5);
        datePicker.updateDate(2008,8,8);//设置当前选择日期
        datePicker.setDateOrder(DatePicker.DateOrder.YMD); //显示年月日顺序
        datePicker.setSelectorItemNum(3);//显示项目的条数
        datePicker.setSelectedNormalTextMarginRatio(6);
        datePicker.setOperatedTextColor(Color.BLUE);

        TimePicker timePicker = (TimePicker) findComponentById(ResourceTable.Id_time_picker5);
        timePicker.set24Hour(false);// 12小时制, true:24小时制
        timePicker.setAmPmOrder(TimePicker.AmPmOrder.END);//AM.PM放在最后
        timePicker.setAmPmStrings("美好上午","精彩下午");
        timePicker.setRange(new int[]{8,0,0,21,59,59}); //可选时间8:00 -- 21:59
        //设置框线
        ShapeElement blueElement = new ShapeElement();
        blueElement.setRgbColor(new RgbColor(0,0,255));
        timePicker.setDisplayedLinesElements(blueElement,blueElement);
        //渐变背景颜色，灰色
        //timePicker.setShaderColor(new Color(Color.rgb(150,150,150)));
        timePicker.setShaderColor(new Color(Color.getIntColor("#1E90FF")));

        String date2 = String.valueOf(datePicker.getDayOfMonth());
        Button button1 = (Button) findComponentById(ResourceTable.Id_button1);
        button1.setClickedListener(new Component.ClickedListener() {
            @Override
            public void onClick(Component component) {
                new ToastDialog(getContext())
                        .setText("获取的月份："+date2)
                        .setAlignment(LayoutAlignment.BOTTOM)
                        .show();
            }
        });

        Button button3 = (Button) findComponentById(ResourceTable.Id_button3);
        button3.setClickedListener(new Component.ClickedListener() {
            @Override
            public void onClick(Component component) {
                String time2_h = String.valueOf(timePicker.getHour()) ;
                String time2_m = String.valueOf(timePicker.getMinute()) ;
                String time2_s = String.valueOf(timePicker.getSecond()) ;
                new ToastDialog(getContext())
                        .setText("获取时间为："+time2_h+":"+time2_m+":"+time2_s)
                        .setAlignment(LayoutAlignment.BOTTOM)
                        .show();
            }
        });


    }

    @Override
    public void onActive() {
        super.onActive();
    }

    @Override
    public void onForeground(Intent intent) {
        super.onForeground(intent);
    }
}

 ability_main.xml,布局文件

<?xml version="1.0" encoding="utf-8"?>
<DirectionalLayout
    xmlns:ohos="http://schemas.huawei.com/res/ohos"
    ohos:height="match_parent"
    ohos:width="match_parent"
    ohos:alignment="center"
    ohos:orientation="vertical">

    <Text
        ohos:id="$+id:text_helloworld"
        ohos:height="match_content"
        ohos:width="match_content"
        ohos:background_element="#FFB1C4FC"
        ohos:layout_alignment="horizontal_center"
        ohos:text="$string:mainability_HelloWorld"
        ohos:text_size="40vp"

        />
    <Text
        ohos:id="$+id:text_helloworld3"
        ohos:height="match_content"
        ohos:width="match_content"
        ohos:background_element="$graphic:background_ability_main"
        ohos:layout_alignment="horizontal_center"
        ohos:text="日期选择器"
        ohos:text_size="40vp"
        />
    <DatePicker
        ohos:id="$+id:date_picker5"
        ohos:height="match_content"
        ohos:width="match_parent"
        ohos:background_element="#FF71F68E"
        ohos:layout_alignment="horizontal_center"
        ohos:normal_text_size="20vp"
        ohos:selected_text_size="22vp"
        ohos:top_margin="10vp"
        />
    <Text
        ohos:id="$+id:text_helloworld3a"
        ohos:height="match_content"
        ohos:width="match_content"
        ohos:background_element="$graphic:background_ability_main"
        ohos:layout_alignment="horizontal_center"
        ohos:text="时间选择器"
        ohos:text_size="40vp"
        />
    <TimePicker
        ohos:id="$+id:time_picker5"
        ohos:height="match_content"
        ohos:width="match_parent"
        ohos:background_element="#FF71F68E"
        ohos:layout_alignment="horizontal_center"
        ohos:normal_text_size="20vp"
        ohos:selected_text_size="22vp"
        ohos:top_margin="10vp"
        />
    <Button
        ohos:id="$+id:button1"
        ohos:width="match_content"
        ohos:height="match_content"
        ohos:text_size="27fp"
        ohos:text="获取日期"
        ohos:background_element="$graphic:capsule_button_element"
        ohos:left_margin="15vp"
        ohos:bottom_margin="15vp"
        ohos:right_padding="15vp"
        ohos:left_padding="15vp"
        />
    <Button
        ohos:id="$+id:button3"
        ohos:width="match_content"
        ohos:height="match_content"
        ohos:text_size="27fp"
        ohos:text="获取时间"
        ohos:background_element="$graphic:capsule_button_element"
        ohos:left_margin="15vp"
        ohos:bottom_margin="15vp"
        ohos:right_padding="15vp"
        ohos:left_padding="15vp"
        />

</DirectionalLayout>

capsule_button_element.xml

放在目录：项目名称xxxentrysrcmain
esourcesasegraphic

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:ohos="http://schemas.huawei.com/res/ohos"
       ohos:shape="rectangle">
    <corners
        ohos:radius="100"/>
    <solid
        ohos:color="#FF59F17A"/>
</shape>

 按钮的样式：

使用方法：

<Button
        ohos:id="$+id:button3"
        ohos:width="match_content"
        ohos:height="match_content"
        ohos:text_size="27fp"
        ohos:text="获取时间"
        ohos:background_element="$graphic:capsule_button_element"
        ohos:left_margin="15vp"
        ohos:bottom_margin="15vp"
        ohos:right_padding="15vp"
        ohos:left_padding="15vp"
        />