TransformersLayout

🔥 APP金刚区导航布局，下方带横向滚动条，很多APP都有使用这种，效果还不错就封装了一下😄

整体结构是Recyclerview + 滚动条

Features

• 每页行数、列数可配置
• 滚动状态自动恢复
• 支持数据重新排序，类似viewpager的分页模式
• item布局样式自定义
• scrollbar样式可配置

Preview

点击下载APK体验

Install

📣项目基于AndroidX构建，参考迁移指南：AndroidX迁移

Step 1： 项目根目录的build.gradle添加如下配置：

allprojects {
	repositories {
		...
		maven { url 'https://jitpack.io' }
	}
}

Step 2： app添加依赖：

dependencies {
	 implementation 'com.github.zaaach:TransformersLayout:x.y.z'
}

记得把x.y.z替换为中的数字

How to use

Step 1： xml布局文件

<com.zaaach.transformerslayout.TransformersLayout                                         
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="#ffffff"
    app:tl_spanCount="5"
    app:tl_lines="2"
    app:tl_pagingMode="true"
    app:tl_scrollbarWidth="72dp"
    app:tl_scrollbarHeight="4dp"
    app:tl_scrollbarRadius="2dp"
    app:tl_scrollbarMarginTop="6dp"
    app:tl_scrollbarMarginBottom="6dp"
    app:tl_scrollbarTrackColor="#f0f0f0"
    app:tl_scrollbarThumbColor="#FFC107"/>

Step 2： 自定义ViewHolder，第三步需要用到

public class NavAdapterViewHolder extends Holder<Nav> {
    private ImageView icon;
    private TextView text;

    NavAdapterViewHolder(@NonNull View itemView) {
        super(itemView);
    }

    @Override
    protected void initView(View itemView) {
        icon = itemView.findViewById(R.id.iv_menu_icon);
        text = itemView.findViewById(R.id.tv_menu_text);
    }

    @Override
    public void onBind(Context context, List<T> list, @Nullable Nav data, int position) {
        text.setText(data.getText());
        Glide.with(context)
                .asBitmap()
                .fitCenter()
                .diskCacheStrategy(DiskCacheStrategy.ALL)
                .placeholder(R.drawable.default_place_holder)
                .load(data.getUrl())
                .into(icon);
    }
}

Step 3： java代码中调用

List<Nav> navList = DataFactory.loadData();
TransformersLayout<Nav> header = findViewById();
//options可选配置，会覆盖xml里的属性
TransformersOptions options = new TransformersOptions.Builder()
        .lines(2)
        .spanCount(5)
    	.pagingMode(true)
        .scrollBarWidth(Util.dp2px(this, 40))
        .scrollBarHeight(Util.dp2px(this, 3))
        .scrollBarRadius(Util.dp2px(this, 3) / 2f)
        .scrollBarTopMargin(Util.dp2px(this, 6))
    	.scrollBarBottomMargin(Util.dp2px(this, 6))
    	.scrollBarTrackColor(Color.parseColor("#e5e5e5"))
        .scrollBarThumbColor(Color.parseColor("#658421"))
        .build();
header.apply(options)//options可为null
        .addOnTransformersItemClickListener(new OnTransformersItemClickListener() {
            @Override
            public void onItemClick(int position) {
                showToast();
            }
        })
        .load(navList, new TransformersHolderCreator<Nav>() {
            @Override
            public Holder<Nav> createHolder(View itemView) {
                return new NavAdapterViewHolder(itemView);
            }
            @Override
            public int getLayoutId() {
                return R.layout.item_nav_list;//第二步使用的布局
            }
        });

😏Good luck！！！

支持的attrs属性：

Change log

2020-12-04

• 增加scrollbar下间距属性

2020-02-01

• 修复数据更新问题

2020-01-21

• 新方法修复滚动条变长变短问题（很完美）
• 支持数据重新排序
• 回调方法变动

2020-01-05

• 修复滚动条突然变长变短的问题
• 优化默认圆角大小显示效果

2019-12-13

• 修复滚动条颜色配置无效的问题

About me

掘金： https://juejin.im/user/56f3dfe8efa6310055ac719f

简书： https://www.jianshu.com/u/913a8bb93d12

淘宝店： LEON家居生活馆 （动漫摆件）

😉淘宝店求个关注😉

License

Copyright (c) 2020 zaaach

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.