Why is this checkbox not showing on my Samsung Galaxy S10 Plus nor Android 10 Emulator?

Question

Why isn't this checkbox showing up on my Samsung Galaxy S10 Plus nor on a emulator running Android 10?

I have tried two more emulators: one running Android 5.2 and other one running Android 6.1, and in those it works properly.

Here is my code:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#F5F5F5"
android:paddingLeft="16dp"
android:paddingTop="16dp"
android:paddingRight="16dp"
android:paddingBottom="16dp"
tools:ignore="HardcodedText">

<EditText
    android:id="@+id/et_login_email"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/Titulo"
    android:layout_centerHorizontal="true"
    android:layout_marginTop="39dp"
    android:ems="10"
    android:hint="Email"
    android:autofillHints="@android:string/autofill"
    android:textSize="24sp"
    android:inputType="textEmailAddress"
    tools:targetApi="o_mr1">

    <requestFocus />
</EditText>

<EditText
    android:id="@+id/et_login_clave"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/et_login_email"
    android:layout_alignLeft="@+id/et_login_email"
    android:layout_marginTop="39dp"
    android:ems="10"
    android:hint="Contraseña"
    android:inputType="textPassword"
    android:textSize="24sp" />

<Button
    android:id="@+id/bt_login_entrar"
    style="@style/Widget.AppCompat.Button"
    android:layout_width="140dp"
    android:layout_height="wrap_content"
    android:layout_below="@+id/et_login_clave"
    android:layout_centerHorizontal="true"
    android:layout_marginTop="39dp"
    android:text="Iniciar sesión"
    android:textAppearance="@style/TextAppearance.AppCompat.Body1"
    android:textSize="19sp"
    android:typeface="normal" />

<TextView
    android:id="@+id/tv_login_registrarse"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/bt_login_entrar"
    android:layout_centerHorizontal="true"
    android:layout_marginTop="39dp"
    android:text="Registrarse"
    android:textColor="#FF9800"
    android:textSize="17sp"
    android:textStyle="bold" />

<TextView
    android:id="@+id/Titulo"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    android:layout_centerHorizontal="true"
    android:gravity="center_horizontal"
    android:text="Hotel Dumbría"
    android:textColor="#2196F3"
    android:textSize="36sp"
    android:textStyle="bold"
    android:typeface="normal" />

<ProgressBar
    style="?android:attr/progressBarStyle"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/tv_login_registrarse"
    android:layout_centerHorizontal="true"
    android:layout_marginTop="25dp"

    android:id="@+id/progressBarConfirmacionReservas" />

<CheckBox
    android:id="@+id/chk_guardar_login"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/et_login_clave"
    android:layout_marginTop="4dp"
    android:layout_centerHorizontal="true"
    android:text="Guardar Login" />

</RelativeLayout>

Answer 1

It could be displayed "under the screen" as the emulator and your phone can have different screen sizes and ratios. Try for example deleting something above it and re-installing the application on your phone again! If that's the case, here you can find all the information you need to make a scrollview!

Hope this helped!