MainActivity.kt
package com.cfsuman.jetpackcompose
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import androidx.activity.compose.setContent
import androidx.compose.animation.animateContentSize
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.*
import androidx.compose.material.*
import androidx.compose.runtime.Composable
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
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 shortText = "This is a short text."
val longtext = "Lorem Ipsum is simply dummy text of the printing" +
" and typesetting industry. Lorem Ipsum has been the" +
" industry's standard dummy text ever since the 1500s," +
" when an unknown printer took a galley of type and" +
" scrambled it to make a type specimen book."
val isShortText = remember { mutableStateOf(true) }
Column(
modifier = Modifier
.background(Color(0xFFEDEAE0))
.padding(16.dp)
.fillMaxSize(),
verticalArrangement = Arrangement.spacedBy(8.dp)
){
Button(
onClick = {
isShortText.value = !isShortText.value
},
) {
Text(if (isShortText.value) "Long Text" else "Short Text")
}
Box(
modifier = Modifier
.background(Color(0xFFFF9966))
.padding(16.dp)
.fillMaxWidth()
.animateContentSize()
) {
Text(
text = if (isShortText.value) shortText else longtext,
fontSize = 30.sp,
fontWeight = FontWeight.Bold,
textAlign = TextAlign.Center,
fontFamily = FontFamily.Cursive,
color = Color(0xFFA52A2A)
)
}
}
}
@Preview
@Composable
fun ComposablePreview(){
//MainContent()
}
}
- jetpack compose - Text custom font
- jetpack compose - Accessing font resource
- jetpack compose - LazyColumn content spacing padding
- jetpack compose - LazyColumn scroll to top bottom
- jetpack compose - LazyColumn smooth scrolling
- jetpack compose - LazyColumn scroll to position
- jetpack compose - FadeIn FadeOut animation
- jetpack compose - ExpandIn ShrinkOut animation
- jetpack compose - SlideIn SlideOut animation
- jetpack compose - Infinite repeatable animation
- jetpack compose - Animation finished listener
- jetpack compose - Tween animation
- jetpack compose - Keyframes animation
- jetpack compose - AnimateContentSize customization
- jetpack compose - Spring animation