Android application type Xamarin.Forms application Xamarin.Android application Affected platform version Android 14 Emulator (pixel 7 pro)
Un affected platforms tested Android 13 emulator(pixel 5), Android 9 emulator(pixel 2), Android 14 Device (Samsung s21fe), Android 13 device (S20fe).
Description: When using the Edit text on the alert dialog box, opening the alert dialog box 2nd time makes the built-in keyboard unusable
Steps to Reproduce: 1. Open the application AlertDialogIssue.zip 2. Press open dialog 3. Enter any text in Edit text and press OK 4. Now the keyboard is visible but we were unable to interact with the keyboard
We have created a custom alert dialog with the following codes CustomAlertDialog.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:id="@+id/contentview"
android:padding="15dp"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/headerView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Title"
android:textStyle="bold"
android:textSize="20dp"
android:textColor="@android:color/black"/>
<android.support.design.widget.TextInputLayout
android:id="@+id/textinputlayout"
android:layout_width="match_parent"
android:layout_height="50dp">
<EditText
android:id="@+id/passwordedit"
android:hint="Edit"
android:layout_width="match_parent"
android:layout_height="50dp"
android:password="true"
android:textStyle="normal"
android:textSize="15dp"
android:layout_marginLeft="-5dp"
android:inputType="textPassword"/>
</android.support.design.widget.TextInputLayout>
<TextView
android:id="@+id/errorview"
android:text="Error"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="@android:color/holo_red_dark"
android:visibility="invisible"
/>
<LinearLayout
android:id="@+id/footerview"
android:layout_width="match_parent"
android:layout_height="50dp"
android:orientation="horizontal"
android:gravity="right"
android:paddingRight="-15dp">
<Button
android:id="@+id/cancelbutton"
android:text="Cancel"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@android:color/transparent"
android:textColor="#0080eb"/>
<Button
android:id="@+id/okbutton"
android:text="Ok"
android:layout_width="70dp"
android:layout_height="match_parent"
android:enabled="false"
android:textColor="@android:color/darker_gray"
android:background="@android:color/transparent"
/>
</LinearLayout>
</LinearLayout>
CustomAlertDialog.cs
using Android.App;
using Android.Content;
using Android.Graphics.Drawables;
using Android.OS;
using Android.Runtime;
using Android.Views;
using Android.Views.InputMethods;
using Android.Widget;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AlertDialogIssue
{
internal class CustomAlertDialog : LinearLayout, IDisposable
{
private Context mainContext;
private LinearLayout contentView;
private AlertDialog passwordDialog;
private AlertDialog.Builder alertbuilderpassword;
internal bool isPasswordDialogAppearing = false;
private View currentView;
private EditText passwordEdit;
private Button okButton;
private Button cancelButton;
private TextView headerView;
private LayoutInflater inflater;
internal CustomAlertDialog(Context context)
: base(context)
{
mainContext = context;
inflater = (LayoutInflater)context.GetSystemService(Context.LayoutInflaterService);
View view = inflater.Inflate(Resource.Layout.CustomAlertDialog, this, true);
InflateView(view);
}
internal void InflateView(View view)
{
currentView = view;
contentView = view.FindViewById<LinearLayout>(Resource.Id.contentview);
headerView = view.FindViewById<TextView>(Resource.Id.headerView);
passwordEdit = view.FindViewById<EditText>(Resource.Id.passwordedit);
okButton = view.FindViewById<Button>(Resource.Id.okbutton);
cancelButton = view.FindViewById<Button>(Resource.Id.cancelbutton);
InitializePasswordView();
DisplayAlertDialog();
}
internal void InitializePasswordView()
{
passwordEdit.TextChanged += PasswordEdit_TextChanged;
passwordEdit.KeyPress += PasswordEdit_KeyPress;
okButton.Click += OkButton_Click;
cancelButton.Click += CancelButton_Click;
}
internal void ShowPasswordInputDialog()
{
if (passwordDialog != null)
{
passwordDialog.Dismiss();
}
if (!isPasswordDialogAppearing)
{
passwordDialog.Show();
isPasswordDialogAppearing = true;
}
}
internal void DisplayAlertDialog()
{
alertbuilderpassword = new AlertDialog.Builder(mainContext);
alertbuilderpassword.SetView(currentView);
alertbuilderpassword.SetCancelable(false);
passwordDialog = alertbuilderpassword.Create();
passwordDialog.Window.SetSoftInputMode(SoftInput.StateAlwaysVisible);
passwordDialog.Window.SetLayout(400, 400);
}
private void CancelButton_Click(object sender, EventArgs e)
{
passwordDialog.Dismiss();
isPasswordDialogAppearing = false;
}
private void OkButton_Click(object sender, EventArgs e)
{
passwordDialog.Dismiss();
passwordDialog.Show();
passwordEdit.SetSelectAllOnFocus(true);
passwordEdit.SetSelection(passwordEdit.Length());
passwordEdit.SelectAll();
}
private void PasswordEdit_KeyPress(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keycode.Enter)
{
passwordDialog.Dismiss();
}
else if (e.KeyCode == Keycode.Back)
{
passwordDialog.Dismiss();
}
else if (e.KeyCode == Keycode.Del)
{
if (!string.IsNullOrEmpty(passwordEdit.Text))
{
string tempString = passwordEdit.Text;
if (passwordEdit.HasSelection)
{
passwordEdit.Text = string.Empty;
}
else
{
passwordEdit.Text = tempString.Remove(tempString.Length - 1);
int position = passwordEdit.Length();
passwordEdit.SetSelection(position);
}
}
}
}
private void PasswordEdit_TextChanged(object sender, global::Android.Text.TextChangedEventArgs e)
{
okButton.Enabled = true;
}
}
}
We are invoking the custom alert dialog on the main activity using the following code customAlertDialog.ShowPasswordInputDialog();
Did you find any workaround? No, but with removing the passwordDialog.Window.SetSoftInputMode(SoftInput.StateAlwaysVisible); in the DisplayAlertDialog method, it will not cause this issue, and it will not invoke the keyboard every time the dialog box is opened again.
I have issue on certain device on certain Android version only so need different solution for opening and closing the Alert dialog with Edit text or we need to way to report this bug as Xamarin and MS Question and answer denied this as their issue.
