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README
Apache-2.0

banner

项目介绍

  • 项目名称:banner
  • 所属系列:openharmony的第三方组件适配移植
  • 功能:基于PageSlider实现无限轮播功能。可以自定义indicator,需自定义实现 Indicator 接口,内置了的IndicatorView集成使用请参考Demo
  • 项目移植状态:主功能完成
  • 调用差异:详见差异说明
  • 开发版本:sdk6,DevEco Studio 2.2 Beta1
  • 基线版本:Release V1.0.5

效果演示

tu1

1.一页三屏

描述 普通样式 两边缩放
一页三屏

2.内置指示器

IndicatorView IndicatorStyle
INDICATOR_CIRCLE INDICATOR_CIRCLE_RECT
INDICATOR_BEZIER INDICATOR_DASH
INDICATOR_BIG_CIRCLE

3.自定义指示器

img12 img13 img14
img15 img16 img17
img18 img19 img20

安装教程

1.在项目根目录下的build.gradle文件中,

 allprojects {
    repositories {
        maven {
            url 'https://s01.oss.sonatype.org/content/repositories/snapshots/'
        }
    }
 }

2.在entry模块的build.gradle文件中,

 dependencies {
    implementation('com.gitee.chinasoft_ohos:banner:0.0.1-SNAPSHOT')
    ......
 }

在sdk6,DevEco Studio 2.2 Beta1下项目可直接运行 如无法运行,删除项目.gradle,.idea,build,gradle,build.gradle文件, 并依据自己的版本创建新项目,将新项目的对应文件复制到根目录下

使用说明

1.在xml中使用

<com.to.aboomy.banner.Banner
    ohos:id="$+id:banner"
    ohos:height="150vp"
    ohos:width="match_parent"/>

2.初始化:


 //使用内置Indicator
IndicatorView indicator = new IndicatorView(this)
        .setIndicatorColor(Color.GRAY)
        .setIndicatorSelectorColor(Color.WHITE))
        
banner2.setHolderCreator(new ImageHolderCreator())
       .setIndicator(indicator)
       .setPages(imageBanner2);

3.简单设置一页三屏

//设置左右页面露出来的宽度及item与item之间的宽度
.setPageMargin(-(AttrHelper.vp2px(88,getContext())),AttrHelper.vp2px(37,getContext()))
//设置切换动画
.setPageTransformer(true, new NoPageTransformer())

4.PageSlider切换动画

	//内置BannerViewPager.PageTransformer接口,针对不同的item进行动画操作
    @Override
    public void transformerPage(BannerViewPager.PageType pageType, Component page, float offset, float offsetPixels) {
        switch (pageType) {
            case PREVIOUS:
                // 上页item
                break;
            case CURRENT:
                // 当前页item
                break;
            case NEXT:
                // 下页item
                break;
            case OTHER:
                 // 其他页item
                break;
            default:
                break;
        }
    }

5.如何自定义Indicator

/**
 * 可以实现该接口,自定义Indicator
 *
 * @since 2021-07-20
 */
public interface Indicator extends PageSlider.PageChangedListener {
    /**
     * 当数据初始化完成时调用
     *
     * @param pagerCount pager数量
     */
    void initIndicatorCount(int pagerCount);

    /**
     * 返回一个View,添加到banner中
     */
    Component getView();

    /**
     * banner是一个RelativeLayout,设置banner在RelativeLayout中的位置,可以是任何地方
     * @return
     */
    DependentLayout.LayoutConfig getParams();

    /**
     * 是否自动循环
     *
     * @param isAuto 是否
     */
    void setAutoStau(Boolean isAuto);
}
//举个栗子
package com.to.aboomy.bannersample.indicator;

import com.to.aboomy.banner.Indicator;
import ohos.agp.components.AttrSet;
import ohos.agp.components.Component;
import ohos.agp.components.ComponentContainer;
import ohos.agp.components.DependentLayout;
import ohos.app.Context;

/**
 * @since 2021-08-10
 */
public class IndicatorView extends Component implements Indicator {
    public IndicatorView(Context context) {
        super(context);
    }

    public IndicatorView(Context context, AttrSet attrSet) {
        super(context, attrSet);
    }

    public IndicatorView(Context context, AttrSet attrSet, String styleName) {
        super(context, attrSet, styleName);
    }

    @Override
    public void initIndicatorCount(int pagerCount) {
        this.pagerCount = pagerCount;
        setVisibility(pagerCount > 1 ? VISIBLE : GONE);
        requestLayout();
    }

    @Override
    public Component getView() {
        return this;
    }

    @Override
    public DependentLayout.LayoutConfig getParams() {
        if (params == null) {
            params = new DependentLayout.LayoutConfig(ComponentContainer.LayoutConfig.MATCH_CONTENT, NUM_100);
            params.addRule(DependentLayout.LayoutConfig.ALIGN_PARENT_BOTTOM);
            params.setMarginTop(NUM_30);
        }
        return params;
    }

    @Override
    public void setAutoStau(Boolean isAuto) {

    }

    @Override
    public void onPageSliding(int i, float v, int i1) {
        selectedPage = position;
        offset = positionOffset;
        invalidate();
    }

    @Override
    public void onPageSlideStateChanged(int i) {

    }

    @Override
    public void onPageChosen(int i) {

    }
}

6.Banner提供的接口说明

//设置自定义动画
Banner setPageTransformer(boolean reverseDrawingOrder, BannerViewPager.PageTransformer transformer)
    
//设置banner的滑动监听
Banner setOuterPageChangeListener(PageSlider.PageChangedListener outerPageChangeListener)
 
//设置自动轮播时长
Banner setAutoTurningTime(int autoTurningTime)

//设置是否自动轮播,大于1页可以轮播
Banner setAutoPlay(boolean autoPlay)
    
//设置indicator
Banner setIndicator(Indicator indicator)

//设置indicator
Banner setIndicator(Indicator indicator, boolean attachToRoot)
 
//是否无限轮播
boolean isAutoPlay()
 
//获取当前位置
int getCurrentPager()
    
//开始轮播
void startTurning()

//停止轮播
void stopTurning()
    
//设置一屏多页  
Banner setPageMargin(int magin, int padding)
    
//设置滑动方向   
Banner setOrientation(int orientation)

//设置的切换时长
Banner setPagerScrollDuration(int pagerScrollDuration)

7.IndicatorView使用接口说明:

// 设置圆点半径
IndicatorView setIndicatorRadius(float indicatorRadius)

//设置圆点切换动画
IndicatorView setIndicatorStyle(int indicatorStyle)

//设置默认的圆点颜色
IndicatorView setIndicatorColor(Color indicatorColor)
 
//设置选中的圆点颜色
IndicatorView setIndicatorSelectorColor(Color indicatorSelectorColor)

//设置indicator比例,拉伸圆为矩形,设置越大,拉伸越长,默认1.0
IndicatorView setIndicatorRatio(float indicatorRatio) 

//设置选中的圆角,默认和indicatorRadius值一致,可单独设置选中的点大小
IndicatorView setIndicatorSelectedRadius(float indicatorSelectedRadius)
 
//设置选中圆比例,拉伸圆为矩形,控制该比例,默认比例和indicatorRatio一致,默认值1.0
IndicatorView setIndicatorSelectedRatio(float indicatorSelectedRatio)
    

8.调用差异说明

因SDK无对应API 动画CubeInTransformer、CubeOutTransformer、FlipHorizontalTransformer、FlipVerticalTransformer、StackTransformer
   、TabletTransformer、ZoomInTransformer、ZoomOutTransformer、RotateYTransformer未实现
一页三屏,如果设置页面层叠,后页会覆盖前页,openharmony内部pageslider 内部实现,后一页在前一页上层,系统原因
列表嵌套banner,自定义下拉刷新列表作用在bannner上,下拉手势不生效,因不支持事件传递分发,故此效果不能实现

测试信息

CodeCheck代码测试无异常

CloudTest代码测试无异常

病毒安全检测通过

当前版本demo功能与原组件基本无差异

版本迭代

  • 0.0.1-SNAPSHOT
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简介

基于PageSlider实现无限轮播功能。可以自定义indicator,需自定义实现 Indicator 接口,内置了的IndicatorView集成使用请参考Demo 展开 收起
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