iOS collection view basic usage, for your reference. swift language!

CollectionViewDemo-master
.........................\.DS_Store
__MACOSX
........\CollectionViewDemo-master
........\.........................\._.DS_Store
CollectionViewDemo-master\CollectionViewDemo
.........................\..................\AppDelegate.swift
__MACOSX\CollectionViewDemo-master\CollectionViewDemo
........\.........................\..................\._AppDelegate.swift
CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets
.........................\..................\...............\1.imageset
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__MACOSX\CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets
........\.........................\..................\...............\1.imageset
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CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\1.imageset\Contents.json
__MACOSX\CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\1.imageset\._Contents.json
........\.........................\..................\...............\._1.imageset
CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\2.imageset
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__MACOSX\CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\2.imageset
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CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\2.imageset\Contents.json
__MACOSX\CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\2.imageset\._Contents.json
........\.........................\..................\...............\._2.imageset
CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\3.imageset
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__MACOSX\CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\3.imageset
........\.........................\..................\...............\..........\._3.png
CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\3.imageset\Contents.json
__MACOSX\CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\3.imageset\._Contents.json
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CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\4.imageset
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__MACOSX\CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\4.imageset
........\.........................\..................\...............\..........\._4.png
CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\4.imageset\Contents.json
__MACOSX\CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\4.imageset\._Contents.json
........\.........................\..................\...............\._4.imageset
CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\5.imageset
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__MACOSX\CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\5.imageset
........\.........................\..................\...............\..........\._5.png
CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\5.imageset\Contents.json
__MACOSX\CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\5.imageset\._Contents.json
........\.........................\..................\...............\._5.imageset
CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\6.imageset
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__MACOSX\CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\6.imageset
........\.........................\..................\...............\..........\._6.png
CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\6.imageset\Contents.json
__MACOSX\CollectionViewDemo-master\CollectionViewDemo\Assets.xcassets\6.imageset\._Contents.json
........\.........................\..................\...............\._6.imageset
CollectionViewDemo-master\CollectionViewDemo\Assets.xcas

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