Icon Toggle Button in Android using Jetpack Compose
Toggle Buttons are used in most applications. These buttons are used to perform multiple operations. Toggle buttons are seen used in many social media applications such as Instagram. In social media apps, we can get to see a heart icon that is used to like the image. We can also unlike that image by clicking on the same icon. In this article, we will look at How to Create an Icon Toggle Button in Android using Jetpack Compose. A sample video is given below to get an idea about what we are going to do in this article.
Step by Step Implementation
Step 1: Create a New Project in Android Studio
To create a new project in Android Studio please refer to How to Create/Start a New Project in Android Studio. While choosing the template, select Empty Compose Activity. If you do not find this template, try upgrading the Android Studio to the latest version. We demonstrated the application in Kotlin, so make sure you select Kotlin as the primary language while creating a New Project.
Step 2: Working with the MainActivity.kt file
Go to the MainActivity.kt file and refer to the following code. Below is the code for the MainActivity.kt file. Comments are added inside the code to understand the code in more detail.
Kotlin
package com.example.newcanaryproject import android.Manifest.permission.READ_EXTERNAL_STORAGE import android.annotation.SuppressLint import android.app.Activity import android.content.BroadcastReceiver import android.content.Context import android.content.Intent import android.content.IntentFilter import android.content.pm.PackageManager import android.content.res.ColorStateList import android.database.Cursor import android.os.Bundle import android.os.Environment import android.provider.MediaStore import android.util.Log import android.widget.TextClock import android.widget.Toast import android.widget.ToggleButton import androidx.activity.ComponentActivity import androidx.activity.compose.setContent import androidx.compose.animation.animateColor import androidx.compose.animation.core.* import androidx.compose.foundation.ExperimentalFoundationApi import androidx.compose.foundation.Image import androidx.compose.foundation.layout.* import androidx.compose.foundation.lazy.GridCells import androidx.compose.foundation.lazy.LazyVerticalGrid import androidx.compose.material.* import androidx.compose.material.icons.Icons import androidx.compose.material.icons.filled.Favorite import androidx.compose.material.icons.filled.FavoriteBorder import androidx.compose.runtime.* import androidx.compose.ui.Alignment import androidx.compose.ui.Modifier import androidx.compose.ui.graphics.Color import androidx.compose.ui.platform.LocalContext import androidx.compose.ui.res.colorResource import androidx.compose.ui.res.painterResource import androidx.compose.ui.semantics.Role.Companion.Image import androidx.compose.ui.text.font.FontWeight import androidx.compose.ui.text.style.TextAlign import androidx.compose.ui.unit.* import androidx.compose.ui.viewinterop.AndroidView import androidx.core.app.ActivityCompat import androidx.core.app.ActivityCompat.requestPermissions import androidx.core.content.ContextCompat import androidx.localbroadcastmanager.content.LocalBroadcastManager import coil.compose.rememberImagePainter import com.example.newcanaryproject.MainActivity2 import com.example.newcanaryproject.R import com.example.newcanaryproject.ui.theme.* import java.io.File import java.text.SimpleDateFormat import java.util.* class MainActivity : ComponentActivity() { override fun onCreate(savedInstanceState: Bundle?) { super .onCreate(savedInstanceState) setContent { NewCanaryProjectTheme { // on below line we are specifying // background color for our application Surface( modifier = Modifier.fillMaxSize(), color = MaterialTheme.colors.background ) { // on below line we are specifying theme as scaffold. Scaffold( // in scaffold we are specifying top bar. topBar = { // inside top bar we are specifying background color. TopAppBar(backgroundColor = greenColor, // along with that we are specifying // title for our top bar. title = { // in the top bar we are specifying tile as a text Text( // on below line we are specifying text // to display in top app bar. text = "GFG" , // on below line we are specifying modifier // to fill max width. modifier = Modifier.fillMaxWidth(), // on below line we are // specifying text alignment. textAlign = TextAlign.Center, // on below line we are specifying // color for our text. color = Color.White ) }) }) { // on below line we are // calling our function. displayToggleButton() } } } } } } // on below line we are creating a function // to get current date and time. @SuppressLint ( "UnusedTransitionTargetStateParameter" ) @Composable fun displayToggleButton() { // in below line we are setting // the state of our checkbox. val checkedState = remember { mutableStateOf( false ) } // on below line we are creating a column on below sides. Column( // on below line we are adding padding // padding for our column and filling the max size. Modifier .fillMaxSize() .fillMaxHeight() .fillMaxWidth(), // on below line we are adding // horizontal alignment for our column horizontalAlignment = Alignment.CenterHorizontally, // on below line we are adding // vertical arrangement for our column verticalArrangement = Arrangement.Center ) { Text( // on below line we are specifying // text to display. text = "Toggle Button in Android" , // on below line we are specifying // modifier to fill max width. modifier = Modifier .fillMaxWidth() .padding( 20 .dp), // on below line we are specifying // text alignment. textAlign = TextAlign.Center, // on below line we are specifying // color for our text. color = Color.Black, // on below line we are // specifying font weight fontWeight = FontWeight.Bold, // on below line we // are updating font size. fontSize = 25 .sp, ) // on below line we are creating a spacer. Spacer(modifier = Modifier.height( 20 .dp)) Text( // on below line we are specifying text to display. text = if (checkedState.value) "Like" else "Dis Like" , // on below line we are specifying // modifier to fill max width. modifier = Modifier .fillMaxWidth() .padding( 20 .dp), // on below line we are // specifying text alignment. textAlign = TextAlign.Center, // on below line we are // specifying color for our text. color = Color.Black, // on below line we are // specifying font weight fontWeight = FontWeight.Bold, // on below line we // are updating font size. fontSize = 25 .sp, ) // on below line we are creating a spacer. Spacer(modifier = Modifier.height( 20 .dp)) // on below line we are creating icon toggle button. IconToggleButton( // on below line we are // specifying default check state checked = checkedState.value, // on below line we are adding on check change onCheckedChange = { checkedState.value = !checkedState.value }, // on below line we are adding a padding modifier = Modifier.padding( 10 .dp) ) { // on below line we are creating a // variable for our transition val transition = updateTransition(checkedState.value) // on below line we are creating a variable for // color of our icon val tint by transition.animateColor(label = "iconColor" ) { isChecked -> // if toggle button is checked we are setting color as red. // in else condition we are setting color as black if (isChecked) Color.Green else Color.Black } // om below line we are specifying transition val size by transition.animateDp( transitionSpec = { // on below line we are specifying transition if ( false isTransitioningTo true ) { // on below line we are specifying key frames keyframes { // on below line we are specifying animation duration durationMillis = 250 // on below line we are specifying animations. 30 .dp at 0 with LinearOutSlowInEasing // for 0-15 ms 35 .dp at 15 with FastOutLinearInEasing // for 15-75 ms 40 .dp at 75 // ms 35 .dp at 150 // ms } } else { spring(stiffness = Spring.StiffnessVeryLow) } }, label = "Size" ) { 30 .dp } // on below line we are creating icon for our toggle button. Icon( // on below line we are specifying icon for our image vector. imageVector = if (checkedState.value) Icons.Filled.Favorite else Icons.Filled.FavoriteBorder, contentDescription = "Icon" , // on below line we are specifying // tint for our icon. tint = tint, // on below line we are specifying // size for our icon. modifier = Modifier.size(size) ) } } } |
Now run your application to see the output of it.
Output:
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