combine PagerView + GridLayout to PagerLayout

what we can do...

• replace "viewPager>recyclerView" with just only a "RecyclerView"
• reduce memory using by cache all items
• grid layout support
• custom indicator drawable support
• add lock, dot and corner for each item
• add NineDrawable and FolderView for Folder Like Group just like iOS
• add Guide View if you want to guide people how to use

Please using latest version:

0. PagerLayout:
1. LockItem:
2. Guide:
3. FolderView:
4. NineDrawable:

// 翻页网格布局，本地或者网络库
implementation 'com.github.qicodes:pagerlayout:1.0.0'
// 加锁红点item（可选：如果需要加锁或者红点可以添加）
implementation 'com.github.qicodes:lockitem:1.0.0'
// 新手引导，（可选：如果需要添加用户引导可以添加）
implementation 'com.github.qicodes:guide:1.0.0'
// iOS风格文件夹，（可选：如果需要添加类似iOS风格的文件夹效果可以添加）
implementation 'com.github.qicodes:folderview:1.0.0'
// 生成九宫格的drawable，（可选：如果需要添加类似iOS风格的文件夹效果可以添加）
implementation 'com.github.qicodes:ninedrawable:1.0.0'

1. add PagerLayoutManager as recyclerView's layoutManager

recyclerView.layoutManager = PagerLayoutManager()

2. set a adapter to recyclerView as usual

recyclerView.adapter = SlideAdapter(baseContext)

3. set PagerSnapHelper to scroll like a PageView

PagerSnapHelper().attachToRecyclerView(recyclerView)

That's all! We will layout all children automatically using pager grid.

4. if you want a indicator , we supply 4 kind indicators as implements of PageIndicator. Dot, Line， Square, Drawable. just need a attachToRecyclerView.

dotIndicator.attachToRecyclerView(recyclerView)
lineIndicator.attachToRecyclerView(recyclerView)
lineIndicator2.attachToRecyclerView(recyclerView)
drawIndicator.attachToRecyclerView(recyclerView)

5. if you need your item in RecyclerView with lock or dot, you can implementation lockitem, follow this link to see LockItem

6. if you need a gray transparent layer to guide user, follow this link to see Guide

7. if you need a folder view, click it to open sub-file items, just like iOS, follow this link to see FolderView and this link to see NineDrawable

just like GridLayoutManager you can set the grid weights of each item

The default spanCount is 12, you can using this to layout children by all (1,2,3,4,6,12). Also you can custom this spanCount. Here is a simple example with kotlin code:

recyclerView.layoutManager = PagerLayoutManager(12) {
    when (it) {
        37 -> SlideAdapter.TYPE_1
        in 0..1 -> SlideAdapter.TYPE_2
        in 18..20 -> SlideAdapter.TYPE_3
        in 46..51 -> SlideAdapter.TYPE_6
        in 56..58 -> SlideAdapter.TYPE_3
        else -> SlideAdapter.TYPE_4
    }
}

Control to cache item just like RecyclerView for each type of item.

recyclerView.recycledViewPool.setMaxRecycledViews(SlideAdapter.TYPE_6, 20)
recyclerView.recycledViewPool.setMaxRecycledViews(SlideAdapter.TYPE_4, 20)
recyclerView.recycledViewPool.setMaxRecycledViews(SlideAdapter.TYPE_3, 4)
recyclerView.recycledViewPool.setMaxRecycledViews(SlideAdapter.TYPE_2, 4)
recyclerView.recycledViewPool.setMaxRecycledViews(SlideAdapter.TYPE_1, 4)

OR using one recycledViewPool to cache all items

recyclerView.recycledViewPool.setMaxRecycledViews(0, 30)

You can set width, height, normalColor, selectColor, padding, round to indicator. Also you can set a Bitmap as indicator

android:padding="8dp"
app:indicatorHeight="26dp"
app:indicatorWidth="26dp"
app:normalColor="@android:color/holo_blue_light"
app:selectColor="@android:color/holo_orange_light"
app:round="true"

For detail config, here is a Demo for you.

Each item can be covered with lock and dot, and the number in dot, here is a Demo

lockItem.showNumber = false
lockItem.dotNumber = -1
lockItem.showLock = false

Also, you can control this with xml:

<com.abelhu.lockitem.LockItem
    android:id="@+id/iconView"
    android:layout_width="0dp"
    android:layout_height="0dp"
    android:padding="8dp"
    android:src="@color/colorAccent"
    app:cornerSize="8dp"
    app:dotBackgroundColor="@android:color/white"
    app:dotBackgroundRadio="0.5dp"
    app:dotBigRadio="8dp"
    app:dotNormalRadio="4dp"
    app:dotNumber="88"
    app:dotTextSize="12sp"
    app:layout_constraintDimensionRatio="w, 1:1"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    app:lock="@mipmap/icon_lock"
    app:lockBackgroundColor="#aa000000"
    app:lockHeight="23.5dp"
    app:lockText="@string/app_name"
    app:lockTextColor="@android:color/white"
    app:lockTextMargin="8dp"
    app:lockTextSize="12sp"
    app:lockWidth="21dp"
    app:showLock="true"
    app:showNumber="true"
    app:srcCompat="@drawable/ic_launcher_foreground"
    tools:ignore="ContentDescription" />

This project can be run if download.