Jetpack Compose TextField in Android – Complete Guide

Jetpack Compose is Android’s modern UI toolkit that simplifies and accelerates UI development. One of the most common UI elements is the TextField – used to take user input like name, email, password, or search queries.

In this blog, we’ll explore how to use TextField in Jetpack Compose with real examples.

---

🔹 What is TextField in Jetpack Compose?

TextField is a composable function used to create an input field. It allows users to enter and edit text.

---

🔹 Basic TextField Example

kotlinCopyEdit@Composable
fun BasicTextFieldExample() {
    var text by remember { mutableStateOf("") }

    TextField(
        value = text,
        onValueChange = { text = it },
        label = { Text("Enter your name") }
    )
}

🧠 Explanation:

• value: Holds the current text.
• onValueChange: Updates the value whenever the user types.
• label: Displays hint text inside the box.

---

🔐 Password TextField

kotlinCopyEdit@Composable
fun PasswordTextField() {
    var password by remember { mutableStateOf("") }
    var passwordVisible by remember { mutableStateOf(false) }

    TextField(
        value = password,
        onValueChange = { password = it },
        label = { Text("Password") },
        visualTransformation = if (passwordVisible) VisualTransformation.None else PasswordVisualTransformation(),
        trailingIcon = {
            val image = if (passwordVisible)
                Icons.Filled.Visibility
            else Icons.Filled.VisibilityOff

            IconButton(onClick = { passwordVisible = !passwordVisible }) {
                Icon(imageVector = image, contentDescription = null)
            }
        }
    )
}

---

🔍 OutlinedTextField Example

kotlinCopyEditOutlinedTextField(
    value = text,
    onValueChange = { text = it },
    label = { Text("Email") }
)

Tip: Use OutlinedTextField for a cleaner look, especially in forms.

---

🔄 TextField with Keyboard Options

kotlinCopyEditTextField(
    value = text,
    onValueChange = { text = it },
    label = { Text("Phone Number") },
    keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Phone)
)

---

✅ Best Practices

• Use remember with mutableStateOf() to maintain state.
• Combine with KeyboardOptions, ImeAction, and VisualTransformation for a better UX.
• Always validate input before submitting.

---

💡 Final Thoughts

Jetpack Compose makes handling user input easier with TextField. Whether it’s login screens, forms, or search bars – TextField is essential in modern Android apps.

---

🔗 Stay Tuned with ProgrammingKeeda

We’ll be covering more Jetpack Compose UI components, state management, and real-world Android app development. Follow us for regular updates!