TextField is the field where the user types in. Sometimes developers want to show a specific type of keyboard to enter data. This Jetpack Compose tutorial helps you to make the TextField number only.
KeyboardOptions class helps you to choose different keyboard types for TextField.
@Composable
fun Example() {
var value by remember { mutableStateOf("") }
TextField(
value = value,
onValueChange = { value = it },
keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
label = { Text("Enter text") },
maxLines = 2,
modifier = Modifier.padding(20.dp)
)
}KeyboardType.Number will show the keyboard as given in the screenshot.
If you want a keyboard type for a number password then you have to use KeyboardType.NumberPassword.
@Composable
fun Example() {
var value by remember { mutableStateOf("") }
TextField(
value = value,
onValueChange = { value = it },
keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.NumberPassword),
label = { Text("Enter text") },
maxLines = 2,
modifier = Modifier.padding(20.dp)
)
}Then you will get the following keyboard without characters such as , . etc.
In many cases, you may need a phone keyboard type to enter a mobile phone number. Use KeyboardType.Phone to get the desired result.
@Composable
fun Example() {
var value by remember { mutableStateOf("") }
TextField(
value = value,
onValueChange = { value = it },
keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Phone),
label = { Text("Enter text") },
maxLines = 2,
modifier = Modifier.padding(20.dp)
)
}Following is the output.
Following is the complete code for your reference.
package com.example.myapplication
import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.text.KeyboardOptions
import androidx.compose.material.*
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.setValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.ui.Modifier
import androidx.compose.ui.text.input.KeyboardType
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import com.example.myapplication.ui.theme.MyApplicationTheme
class MainActivity : ComponentActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContent {
MyApplicationTheme {
Surface(
color = MaterialTheme.colors.background
) {
Example()
}
}
}
}
}
@Composable
fun Example() {
var value by remember { mutableStateOf("") }
TextField(
value = value,
onValueChange = { value = it },
keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Phone),
label = { Text("Enter text") },
maxLines = 2,
modifier = Modifier.padding(20.dp)
)
}
@Preview(showBackground = true)
@Composable
fun DefaultPreview() {
MyApplicationTheme {
Example()
}
}That’s how you add number keyboard type and phone keyboard type in Jetpack Compose.
