Thursday, March 18, 2021

jetpack compose - How to use LazyRow

MainActivity.kt

package com.cfsuman.jetpackcompose

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import androidx.activity.compose.setContent
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.lazy.LazyRow
import androidx.compose.foundation.lazy.items
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.material.Card
import androidx.compose.material.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.text.font.FontFamily
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        setContent {
            MainContent()
        }
    }


    @Composable
    fun MainContent(){
        val list = (0..110).map { it.toString() }

        LazyRow(
            modifier = Modifier
                .fillMaxWidth()
                .wrapContentHeight()
                .background(Color(0xFFF0EAD6))
        ) {
            items(items = list, itemContent = { item ->
                Card(
                    modifier = Modifier
                        .fillMaxWidth()
                        .wrapContentHeight(Alignment.CenterVertically)
                        .padding(6.dp),
                    backgroundColor = Color(0xFFFF5470),
                    elevation = 8.dp,
                    shape = RoundedCornerShape(16.dp)
                ) {
                    Text(
                        text = item,
                        fontSize = 50.sp,
                        fontFamily = FontFamily.Cursive,
                        fontWeight = FontWeight.Bold,
                        modifier = Modifier.padding(25.dp),
                        textAlign = TextAlign.Center
                    )
                }
            })
        }
    }


    @Preview
    @Composable
    fun ComposablePreview(){
        //MainContent()
    }
}