WEBVTT

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Welcome back.

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Let's start building our application.

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Here I'll create a new composable function named as Lazycolumn with sticky header.

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And inside it I'll create val grouped items equals to map of fruits to list of apple, banana, cherry,

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mango, grapes, watermelon.

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Then we need to create vegetables to list of carrot.

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Lettuce.

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Tomato.

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Onion.

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Potato.

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Eggplant.

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This code in Kotlin creates a map named Group items that maps categories of items to the list of items

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within those categories.

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Map of this function creates a map where each entry consists of a key and a value.

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Fruits and vegetables are the keys in the map.

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List of and.

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This list of are the values associated with the keys, fruits and vegetables respectively.

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So again, these are the keys fruits and vegetables.

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And these are the values for these keys respectively.

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And by the way in order to access the fruits we can specify for example variable my fruits equals to

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grouped items.

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And here we specify the key.

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So the output of this variable will be apple.

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Banana.

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Cherry.

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Mango.

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Grapes.

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Watermelon.

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All items in this key.

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This is how we create the map which will be the data source for our application.

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Later on, we'll edit this map and replace it with custom objects