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Android View below another in FrameLayout not work

I have such code:
<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#000">
<FrameLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="center map"
android:padding="15dp"
android:background="#drawable/button"
android:layout_gravity="center_horizontal|center_vertical"
android:textColor="#FFF" />
<pl.jawegiel.endlessblow.other.GameSurface
android:id="#+id/gameSurface"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
(...)
</RelativeLayout>
</FrameLayout>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/left_rv"
android:layout_width="200dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#22FFFFFF"
android:choiceMode="singleChoice"
android:divider="#080"
android:dividerHeight="2dp"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager" />
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/right_rv"
android:layout_width="200dp"
android:layout_height="match_parent"
android:layout_gravity="end"
android:background="#99FFFFFF"
android:choiceMode="singleChoice"
android:divider="#080"
android:dividerHeight="2dp"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager" />
</androidx.drawerlayout.widget.DrawerLayout>
The problem is that my Button is not below GameSurface.
I put this Button as first one counting on that it will be below GameSurface but it does not work.
How to achieve that?

You need to change FrameLayout to another kind of ViewGroup. FrameLayout is a a type of ViewGroup where one View is on top of another one. Like Layers in a cake.
Putting one below another is not possible in FrameLayout
The easiest solution might be to change FrameLayout with LinearLayout and of course, remember to add android:orientation attribute to it.
NOTE: I suggest you to learn ConstraintLayout, which can replace nearly every type of nested ViewGroups including FrameLayout and RelativeLayout :-)

This you can't achieve with FrameLayout, this is because FrameLayout is usually used to show only one child. Even tho it can show more child views they are just placed on top of each other. This is explained in the answer above. Each ViewGroup has its own pros and cons and the best Layout for this is LinearLayout. LinearLayout can place your child's one below another or one next to another, based on android:orientation attribute you can use. Values are vertical and horizontal. You understand from that which one should be used here.
Therefore, what you need to do is simply change your FrameLayout to LinearLayout. So this is how it looks in my XML:
<LinearLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:gravity="center_vertical"
android:orientation="vertical"
android:layout_height="match_parent">
After that, you just place your child views in order you want to show them. So, in my case I have an ImageView and a Button, placed in that order, like this:
<LinearLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:gravity="center_vertical"
android:orientation="vertical"
android:layout_height="match_parent">
<ImageView
android:id="#+id/gameSurface"
android:src="#drawable/ic_user"
android:layout_width="200dp"
android:layout_gravity="center_horizontal"
android:layout_height="200dp" />
<com.google.android.material.button.MaterialButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="center map"
android:layout_marginTop="20dp"
android:padding="15dp"
android:layout_gravity="center_horizontal|center_vertical"
android:textColor="#000" />
</LinearLayout>
Then I get this:

ListView in Fragment not covering full Parent

I have a ListView in a Fragment which isn't covering the whole Parent when the List isn't fully populated.
The Problem is the scrolling behaviour of the ListView, I can only browse in the small piece of window the ListView is initially loaded in.
(4 Entries or more do occupy the entire Parent, with less entries the problem happens)
Fragment:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
>
<ListView
android:id="#+id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:divider="#null"
/> </LinearLayout>
Main XML:
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<FrameLayout
android:id="#+id/frame_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
/>
<android.support.design.widget.BottomNavigationView
android:id="#+id/navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="?android:attr/windowBackground"
app:itemBackground="#color/bgBottomNavigation"
app:itemIconTint="#android:color/white"
app:itemTextColor="#android:color/white"
app:menu="#menu/navigation" />
</android.support.design.widget.CoordinatorLayout>
The ListView gets populated via Volley + JSON with an Adapter for the ListView. Comment if you need the Code.
When I'm trying to put the ListViews height on "match_parent" the whole screen is occupied by the ListView, but it isn't scrollable anymore.
What can I do?
EDIT:
Coordinator Layout - This is the Code of the Frame Coordinator with the Bottom Navigation in it:
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<FrameLayout
android:id="#+id/frame_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
<android.support.design.widget.BottomNavigationView
android:id="#+id/navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="?android:attr/windowBackground"
app:itemBackground="#color/bgBottomNavigation"
app:itemIconTint="#android:color/white"
app:itemTextColor="#android:color/white"
app:menu="#menu/navigation" />
</android.support.design.widget.CoordinatorLayout>

You could set a minimum height attribute to your listView and adjust to what suits you.
Eg. to set it to 20dp, add android:minHeight="20dp" to your listView attributes.
Best solution would be to wrap all the contents of the CoordinatorLayout inside a layout you can control yourself, like a ConstraintLayout. In that case you would align the FrameLayout (and the fragments it handles) between your other components and everything would be scrollable and clickable. A mock of this solution would be:
<CoordinatorLayout>
<ConstraintLayout height="match_parent">
<BottomNavigation bottomToBottomOf="parent" />
<FrameLayout height="0dp"
topToTopOf="parent"
bottomToTopOf="bottomNavigation" />
</ConstraintLayout>
</CoordinatorLayout>

I have 2 RecyclerViews in a Fragment. But only the 1st one is shown

I'm trying to have two RecyclerViews in a Fragment. One of them being a horizontally aligned RecyclerView, and the other a vertically aligned one. But only the horizontal RecyclerView is visible. (The vertical RecyclerView is visible if I change the order of the RecyclerViews in the layout file, so I'm pretty sure there's nothing wrong with the RecyclerViews.)
As per other answers to similar questions, I've added the layout_weight=1 in both the RecyclerViews. But the 2nd RecyclerView still doesn't show.
Here's my layout file:
<?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:orientation="vertical">
<android.support.v4.widget.SwipeRefreshLayout
android:id="#+id/swipeRefreshLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="#+id/CategoryPageRecyclerView"
android:layout_width="fill_parent"
android:layout_weight="1"
android:layout_height="0dp"
android:scrollbars="none" />
<android.support.v7.widget.RecyclerView
android:id="#+id/ItemsRecyclerView"
android:layout_width="fill_parent"
android:layout_weight="1"
android:layout_height="0dp"
android:scrollbars="vertical" />
</android.support.v4.widget.SwipeRefreshLayout>
</LinearLayout>
I have a feeling the SwipeRefreshLayout is causing an issue. Any ideas on how to fix this?

SwipeRefreshView supports only one direct child - wrap RecyclerViews in LinearLayout and it will work.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v4.widget.SwipeRefreshLayout
android:id="#+id/swipeRefreshLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" />
<android.support.v7.widget.RecyclerView
android:id="#+id/CategoryPageRecyclerView"
android:layout_width="fill_parent"
android:layout_weight="1"
android:layout_height="0dp"
android:scrollbars="none" />
<android.support.v7.widget.RecyclerView
android:id="#+id/ItemsRecyclerView"
android:layout_width="fill_parent"
android:layout_weight="1"
android:layout_height="0dp"
android:scrollbars="vertical" />
</LinearLayout>
</android.support.v4.widget.SwipeRefreshLayout>
</LinearLayout>
Hope this helps you, comment if you have any questions

Android - what kind of view/xml I've to study

Problem I want view-layout like the following photo, on top I want image view, in the middle a text view and bottom list of items. All this I want to be scrollable (black arrow in the picture). in this way, the user for first see image-text-and part of list items, if scroll down, see the list of item.
For the bottom I thought to use listView, but in this way I think I'll have 2 scrollable view (???) and then I want to make the list in 2 columns, and I don't know if it is possible with ListView
Question
I didn't write code, because I want to know what kind of view or somethings else I've to study.
I sketchy something like this, but the result is really horrible
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
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">
<RelativeLayout
android:layout_width="match_parent" android:layout_height="match_parent">
<ImageView
android:layout_width="match_parent"
android:layout_height="200dp"
app:srcCompat="#drawable/nope"
android:id="#+id/imageView4"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true" />
<View
android:id="#+id/centerShim5"
android:layout_height="0dp"
android:layout_width="match_parent"
android:layout_centerInParent="true"
android:visibility="invisible" />
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/list"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<TextView
android:text="TextView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/textView2"
android:textColor="#color/ame_default_cluster_circle_color_medium"
android:textSize="26dp"
android:layout_centerVertical="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
</RelativeLayout>
</ScrollView>

I can't use listview in Scrollview, and inspired by the matryoshka I found the solution.
I define xml1 file in which I have only ScrollView and LinearLayout inside
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="#+id/linear">
</LinearLayout>
</ScrollView>
after, for each kind of items that I want to add inside, I define another xml2 and after I add element:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/ame_default_cluster_text_color">
<TextView
android:text="TextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:maxLines="5"
android:textSize="32sp"
android:textColor="#color/ame_default_cluster_circle_shadow_color"
android:id="#+id/text1"
android:textAlignment="center" />
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:srcCompat="#drawable/nope"
android:id="#+id/photo" />
<TextView
android:text=" "
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="18sp"
android:id="#+id/descrtiption"
android:textColor="#color/ame_default_cluster_circle_shadow_color"
android:layout_margin="10sp" />
</LinearLayout>
with code:
layoutInflater = (LayoutInflater)ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View item_view=layoutInflater.inflate(R.layout.xml1,container,false);
LinearLayout linearLayout=(LinearLayout)item_view.findViewById(R.id.linear);
LayoutInflater inflater= LayoutInflater.from(ctx);
View view1 = inflater.inflate(R.layout.xml2, linearLayout, false);
TextView text1=(TextView)view1.findViewById(R.id.text1);
text1.setText();
ImageView imageview=(ImageView)view1.findViewById(R.id.photo);
and obviously I can define XML for element to add like listview and add it with normal foreach ,Hope this will help someone.

Issue with Llinear layout hierarchy and alignment

I've some line of code in parent XML as below:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
android:id="#+id/header_parent_layout"
layout="#layout/common_header_layout" />
<include
android:id="#+id/title_header_layout"
layout="#layout/title_header_layout" />
<LinearLayout
android:id="#+id/content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" />
</LinearLayout>
then i have an another xml that i want to add in in LinearLayout with id:content layout in first xml inflated by below xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:customviews="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_gravity="center_vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<FrameLayout
android:id="#+id/agenday_account_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal">
<!-- More Code -->
</FrameLayout>
I already set the center_vertical gravity in inflated xml layout but it's always displaying in top. Could anybody help how to treat with this.
Below code is how i add it:
View view = getLayoutInflater().inflate(R.layout.second, null);
if (view != null) {
mContentContainer.addView(view);
}
mContentContainer is parent one.

Just add a gravity attribute to your id:content LinearLayout,so the content inside it stays centered. Like this:
<LinearLayout
android:id="#+id/content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical" />

I have this Idea:
Change content LinearLayout attributes to:
<LinearLayout
android:id="#+id/content"
android:layout_width="match_parent"
android:layout_weight="1"
android:layout_height="0dp"
android:gravity="center_vertical"
android:orientation="vertical" />