每天进步一点点,成功在久不在速

滑动选择器

 

 

 //设置文本样式

picker.setNormalTextFont(Font.DEFAULT_BOLD);
picker.setNormalTextSize(40);
picker.setNormalTextColor(new Color(Color.getIntColor("#FFA500")));
picker.setSelectedTextFont(Font.DEFAULT_BOLD);
picker.setSelectedTextSize(40);
picker.setSelectedTextColor(new Color(Color.getIntColor("#00FFFF")));

//设置边框

ShapeElement shape = new ShapeElement();
shape.setShape(ShapeElement.RECTANGLE);
shape.setRgbColor(RgbColor.fromArgbInt(0xFF40E0D0));
// 单独设置上边框
// picker.setDisplayedLinesTopElement(shape); 
// 单独设置下边框
// picker.setDisplayedLinesBottomElement(shape);
// 同时设置上下边框
picker.setDisplayedLinesElements(shape, shape); 

设置着色器

<Pickerohos:id="$+id:picker2"ohos:height="match_content"ohos:width="match_parent"ohos:normal_text_size="20vp"ohos:selected_text_size="26vp"ohos:top_margin="10vp"ohos:max_value="33"ohos:min_value="16"ohos:background_element="#686EA8EF"ohos:shader_color="#FF1EFF34"/>

ability_main.xml

<?xml version="1.0" encoding="utf-8"?>
<DirectionalLayoutxmlns:ohos="http://schemas.huawei.com/res/ohos"ohos:height="match_parent"ohos:width="match_parent"ohos:alignment="center"ohos:orientation="vertical"><Textohos: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="每天进步一点点"ohos:text_size="40vp"/><Textohos:id="$+id:text_helloworld3a"ohos:height="match_content"ohos:width="match_content"ohos:background_element="#FFA5F383"ohos:layout_alignment="horizontal_center"ohos:text="成功在久不在速"ohos:text_size="40vp"/><Textohos:id="$+id:text_helloworld"ohos:height="match_content"ohos:width="match_content"ohos:background_element="$graphic:background_ability_main"ohos:layout_alignment="horizontal_center"ohos:text="$string:mainability_HelloWorld"ohos:text_size="40vp"/><Textohos:id="$+id:text_helloworld2"ohos:height="match_content"ohos:width="match_content"ohos:background_element="#FFA5F383"ohos:layout_alignment="horizontal_center"ohos:text="滑动选择器"ohos:text_size="40vp"/><Pickerohos:id="$+id:picker2"ohos:height="match_content"ohos:width="match_parent"ohos:normal_text_size="20vp"ohos:selected_text_size="26vp"ohos:top_margin="10vp"ohos:max_value="33"ohos:min_value="16"ohos:background_element="#686EA8EF"ohos:shader_color="#FF1EFF34"/><Pickerohos:id="$+id:picker2a"ohos:height="match_content"ohos:width="match_parent"ohos:normal_text_size="20vp"ohos:selected_text_size="26vp"ohos:top_margin="10vp"ohos:background_element="#686EA8EF"/></DirectionalLayout>

 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.Color;
import ohos.agp.colors.RgbColor;
import ohos.agp.components.Picker;
import ohos.agp.components.element.Element;
import ohos.agp.components.element.ShapeElement;public class MainAbilitySlice extends AbilitySlice {@Overridepublic void onStart(Intent intent) {super.onStart(intent);super.setUIContent(ResourceTable.Layout_ability_main);//对滑动选择器进行配置Picker picker = (Picker) findComponentById(ResourceTable.Id_picker2);picker.setCompoundElementPadding(50);//设置文本左右两侧的图形元素边距picker.setSelectorItemNum(3);//选项显示的数量设置文本左右两侧的图形元素picker.setElementFormatter(new Picker.ElementFormatter() {@Overridepublic Element leftElement(int i) { //左侧ShapeElement element = new ShapeElement();element.setRgbColor(new RgbColor(0,0,255));return element;}@Overridepublic Element rightElement(int i) {return null;}});//将索引转换为格式化文本picker.setFormatter(new Picker.Formatter() {@Overridepublic String format(int i) {return "选项："+i;}});//批量设置字符串方式显示Picker picker2a = (Picker) findComponentById(ResourceTable.Id_picker2a);picker2a.setCompoundElementPadding(50);//设置文本左右两侧的图形元素边距picker2a.setSelectorItemNum(3);//选项显示的数量picker2a.setDisplayedData(new String[]{"上海","北京","山东","江苏","海南"});}@Overridepublic void onActive() {super.onActive();}@Overridepublic void onForeground(Intent intent) {super.onForeground(intent);}
}