HarmonyOS ArkTS Tab使用方法(十五)
2023-12-18 12:02:39
一,使用方法
Android中Java代码使用fragment进行Tab切换,下面使用HarmonyOS ArkTS 语言实现Tab的使用,代码如下:
/*
* Copyright (c) 2022 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import CommonConstants from '../common/constants/CommonConstants';
import Home from "../view/Home"
import Setting from "../view/Setting"
/**
* Main page
*/
@Entry
@Component
struct MainPage {
@State currentIndex: number = CommonConstants.HOME_TAB_INDEX;
private tabsController: TabsController = new TabsController();
@Builder TabBuilder(title: string, index: number, selectedImg: Resource, normalImg: Resource) {
Column() {
Image(this.currentIndex === index ? selectedImg : normalImg)
.width($r('app.float.mainPage_baseTab_size'))
.height($r('app.float.mainPage_baseTab_size'))
Text(title)
.margin({ top: $r('app.float.mainPage_baseTab_top') })
.fontSize($r('app.float.main_tab_fontSize'))
.fontColor(this.currentIndex === index ? $r('app.color.mainPage_selected') : $r('app.color.mainPage_normal'))
}
.justifyContent(FlexAlign.Center)
.height($r('app.float.mainPage_barHeight'))
.width(CommonConstants.FULL_PARENT)
.onClick(() => {
this.currentIndex = index;
this.tabsController.changeIndex(this.currentIndex);
})
}
build() {
Tabs({
barPosition: BarPosition.End,
controller: this.tabsController
}) {
TabContent() {
//需要切换的tab,自己定义
}
.padding({ left: $r('app.float.mainPage_padding'), right: $r('app.float.mainPage_padding') })
.backgroundColor($r('app.color.mainPage_backgroundColor'))
.tabBar(this.TabBuilder(CommonConstants.HOME_TITLE, CommonConstants.HOME_TAB_INDEX,
$r('app.media.home_selected'), $r('app.media.home_normal')))
TabContent() {
//需要切换的tab,自己定义
}
.padding({ left: $r('app.float.mainPage_padding'), right: $r('app.float.mainPage_padding') })
.backgroundColor($r('app.color.mainPage_backgroundColor'))
.tabBar(this.TabBuilder(CommonConstants.MINE_TITLE, CommonConstants.MINE_TAB_INDEX,
$r('app.media.mine_selected'), $r('app.media.mine_normal')))
}
.width(CommonConstants.FULL_PARENT)
.backgroundColor(Color.White)
.barHeight($r('app.float.mainPage_barHeight'))
.barMode(BarMode.Fixed)
.onChange((index: number) => {
this.currentIndex = index;
})
}
}
二、效果图如下
文章来源:https://blog.csdn.net/Chen_xiaobao/article/details/135057744
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