android - Visible password with TextInputLayouts passwordToggleEnabled

Android - Visible password with TextInputLayouts passwordToggleEnabled

To create a TextInputLayout with a password field that includes a toggle for showing and hiding the password, you can use the passwordToggleEnabled attribute in XML. Here's how to implement it step-by-step:

Step 1: Add Dependencies

Make sure you have the Material Components library included in your build.gradle file:

implementation 'com.google.android.material:material:1.6.0'

Step 2: Create Layout with TextInputLayout

In your XML layout file, use TextInputLayout with passwordToggleEnabled set to true:

res/layout/activity_main.xml:

<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent"> <com.google.android.material.textfield.TextInputLayout android:id="@+id/textInputLayout" android:layout_width="match_parent" android:layout_height="wrap_content" app:passwordToggleEnabled="true" app:hintEnabled="true" android:hint="Password"> <com.google.android.material.textfield.TextInputEditText android:id="@+id/editTextPassword" android:layout_width="match_parent" android:layout_height="wrap_content" android:inputType="textPassword" /> </com.google.android.material.textfield.TextInputLayout> </androidx.coordinatorlayout.widget.CoordinatorLayout>

Step 3: Handle the Toggle Programmatically (Optional)

You typically don't need to handle the toggle programmatically, as it's handled automatically by TextInputLayout. However, if you want to customize it further, you can find the toggle button and manage its behavior.

Example Activity

Here's an example of how you might set this up in an activity:

import android.os.Bundle; import androidx.appcompat.app.AppCompatActivity; import com.google.android.material.textfield.TextInputEditText; import com.google.android.material.textfield.TextInputLayout; public class MainActivity extends AppCompatActivity { private TextInputLayout textInputLayout; private TextInputEditText editTextPassword; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); textInputLayout = findViewById(R.id.textInputLayout); editTextPassword = findViewById(R.id.editTextPassword); } }

Conclusion

By setting passwordToggleEnabled to true in your TextInputLayout, you allow users to easily toggle the visibility of their password. This enhances user experience by providing a convenient way to verify their input.

Examples

  1. How to enable password visibility toggle in TextInputLayout?

    • Description: Use the passwordToggleEnabled attribute to allow users to toggle password visibility.
    • Code:
      <com.google.android.material.textfield.TextInputLayout android:layout_width="match_parent" android:layout_height="wrap_content" app:passwordToggleEnabled="true"> <com.google.android.material.textfield.TextInputEditText android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="Password" android:inputType="textPassword" /> </com.google.android.material.textfield.TextInputLayout>
    • Usage: This XML configuration enables a toggle button in the password field.

  2. How to customize the password toggle icon in TextInputLayout?

    • Description: Change the default toggle icon using app:passwordToggleDrawable.
    • Code:
      <com.google.android.material.textfield.TextInputLayout android:layout_width="match_parent" android:layout_height="wrap_content" app:passwordToggleEnabled="true" app:passwordToggleDrawable="@drawable/custom_toggle_icon"> <com.google.android.material.textfield.TextInputEditText android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="Password" android:inputType="textPassword" /> </com.google.android.material.textfield.TextInputLayout>
    • Usage: This sets a custom icon for the password visibility toggle.

  3. How to handle password visibility toggle programmatically?

    • Description: Control the password visibility toggle using Java/Kotlin code.
    • Code (Kotlin):
      val passwordInputLayout = findViewById<TextInputLayout>(R.id.passwordInputLayout) passwordInputLayout.isPasswordVisibilityToggleEnabled = true
    • Usage: This code enables the password toggle programmatically.

  4. How to set hint for TextInputLayout with password toggle?

    • Description: Customize the hint for the password input field.
    • Code:
      <com.google.android.material.textfield.TextInputLayout android:layout_width="match_parent" android:layout_height="wrap_content" app:passwordToggleEnabled="true"> <com.google.android.material.textfield.TextInputEditText android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="Enter your password" android:inputType="textPassword" /> </com.google.android.material.textfield.TextInputLayout>
    • Usage: This provides a clear hint for the user about what to enter.

  5. How to validate password input with TextInputLayout?

    • Description: Implement validation to check the password input.
    • Code (Kotlin):
      val passwordInputLayout = findViewById<TextInputLayout>(R.id.passwordInputLayout) passwordInputLayout.setEndIconOnClickListener { val password = passwordInputLayout.editText?.text.toString() if (password.length < 6) { passwordInputLayout.error = "Password too short" } else { passwordInputLayout.isErrorEnabled = false } }
    • Usage: This adds a simple validation to ensure the password meets a minimum length.

  6. How to change the password toggle visibility state?

    • Description: Change the state of the password visibility toggle based on conditions.
    • Code (Kotlin):
      passwordInputLayout.setEndIconOnClickListener { val currentType = passwordInputLayout.editText?.inputType passwordInputLayout.editText?.inputType = if (currentType == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) { InputType.TYPE_CLASS_TEXT or InputType.TYPE_TEXT_VARIATION_PASSWORD } else { InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD } passwordInputLayout.editText?.setSelection(passwordInputLayout.editText?.text?.length ?: 0) }
    • Usage: This allows toggling between visible and hidden password states manually.

  7. How to customize error messages in TextInputLayout with password toggle?

    • Description: Set custom error messages for the password input.
    • Code (Kotlin):
      if (password.isEmpty()) { passwordInputLayout.error = "Password cannot be empty" }
    • Usage: This code provides user feedback when the password field is empty.

  8. How to programmatically change password toggle enabled state?

    • Description: Enable or disable the password toggle feature dynamically.
    • Code (Kotlin):
      passwordInputLayout.isPasswordVisibilityToggleEnabled = false // Disable toggle
    • Usage: This sets the password toggle to be disabled if required.

  9. How to handle password visibility toggle in a Fragment?

    • Description: Implement the password toggle in a Fragment context.
    • Code (Kotlin):
      override fun onViewCreated(view: View, savedInstanceState: Bundle?) { super.onViewCreated(view, savedInstanceState) val passwordInputLayout = view.findViewById<TextInputLayout>(R.id.passwordInputLayout) passwordInputLayout.isPasswordVisibilityToggleEnabled = true }
    • Usage: This configures the password toggle within a Fragment.

  10. How to reset password field in TextInputLayout with toggle?

    • Description: Clear the password input and reset the visibility toggle.
    • Code (Kotlin):
      passwordInputLayout.editText?.setText("") passwordInputLayout.isPasswordVisibilityToggleEnabled = true // Reset state
    • Usage: This code resets the password field and allows toggling again.

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