(Big Nerd Ranch) GeoQuiz App Questions no longer visible after adding the landscape layout

[Kim Cook]

I followed the instructions to add the landscape layout view to GeoQuiz; now the questions are not visible. Below are the steps I took:

I copied the activity_quiz.xml and content_quiz.xml files from "layout" to the "land-layout" folder (in project view)
I updated the landscape content_quiz.xml file from linearLayout to frameLayout per the instructions
Now the questions have disappeared from both portrait and landscape layout in Android Studio.
The weird things is when I run the app on my Android phone I can see the questions in portrait view only. When I rotate the device to landscape the questions are not visible.
I would appreciate any help anyone can provide. Thank you for your assistance.

Below is my code:
LANDSCAPE LAYOUT:
<?xml version="1.0" encoding="utf-8"?> <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_gravity="center" android:orientation="vertical"> <TextView    android:id="@+id/question_text_view"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_gravity="center_horizontal"    android:padding="24dp"/> <LinearLayout    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_gravity="center_vertical|center_horizontal"    android:orientation="horizontal">    <Button        android:id="@+id/true_button"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/true_button"/>    <Button        android:id="@+id/false_button"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/false_button"/> </LinearLayout>    <Button        android:id="@+id/previous_button"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/previous_button"        android:layout_gravity="bottom|left"        android:drawableLeft="@drawable/arrow_left"        android:drawablePadding="4dp"/>     <Button        android:id="@+id/next_button"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/next_button"        android:layout_gravity="bottom|right"        android:drawableRight="@drawable/arrow_right"        android:drawablePadding="4dp"/>
PORTRAIT LAYOUT:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center" android:orientation="vertical"> <TextView    android:id="@+id/question_text_view"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:padding="24dp"/> <LinearLayout    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:orientation="horizontal">    <Button        android:id="@+id/true_button"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/true_button"/>    <Button        android:id="@+id/false_button"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/false_button"/> </LinearLayout> <LinearLayout    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:orientation="horizontal">    <Button        android:id="@+id/previous_button"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/previous_button"        android:drawableLeft="@drawable/arrow_left"        android:drawablePadding="4dp"/>     <Button        android:id="@+id/next_button"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/next_button"        android:drawableRight="@drawable/arrow_right"        android:drawablePadding="4dp"/> </LinearLayout>

[Giovanni Montano]

Possibly you do not want to use FrameLayout for landscape.
try to work out a way to use LinearLayout and RelativeLayout and see if you see the questions.
If you want to become android coder these are the most 3 used layout.

FrameLayout is usually used for Fragments, not to maintain ChildViews as you are doing.

[Kim Cook]

Thank you Giovanni, I changed it to Linear Layout and it works perfectly now!

[Giovanni Montano]

Kim Cook wrote:Thank you Giovanni, I changed it to Linear Layout and it works perfectly now!

glad to help you, but please have a look  also at  Coordinator Layout, is an important topic to learn