Develop Reference

Android Tabs and CoordinatorLayout, need to add a row of textViews

Android Studio 3.5.1. Working with the Tabbed Activity template. I really don't understand the CoordinatorLayout stuff.
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ChecklistActivity">
<androidx.viewpager.widget.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<com.google.android.material.tabs.TabLayout
android:id="#+id/tabs"
app:tabMode="scrollable"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary" />
</com.google.android.material.appbar.AppBarLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
This works great. Using Tabs with ListView on each tab, etc.
But, at the bottom of the screen, I want to add a row of TextViews that contain different status info. (e.g. Time since start, Counts, etc.) So I put a LinearLayout at the bottom of the XML. And added a few TextViews. It shows in Design View in Studio. But at the TOP. But when I launch the App on my phone, I don't see it anywhere.
So in short, how do I work with this XML (CoordinatorLayout) to add such a 'status bar' to my view at the bottom of the screen?

Use a RelativeLayout as the first child inside the CoordinatorLayout. Have the property android:layout_height="wrap_content" and android:layout_alignParentBottom="true" to the TextViews. The rest, i.e. ViewPager and TabLayout can remain as they are.
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ChecklistActivity">
<!-- You could even use a ScrollView -->
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<com.google.android.material.tabs.TabLayout
android:id="#+id/tabs"
app:tabMode="scrollable"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary" />
</com.google.android.material.appbar.AppBarLayout>
<androidx.viewpager.widget.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#id/lilayTextViews"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
<LinearLayout
android:id="#+id/lilayTextViews"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="horizontal">
<!-- TextViews go here -->
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Text 1"/>
</LinearLayout>
</RelativeLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>

transparent status bar breaks scrollview

I'm following this solution to create transparent status bar
The problem is now i have a ScrollView which is not working if i opened the keyboard.
If i remove this line it works fine but i loose the transparent status bar feature.
w.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
Any idea why this is happening and how to solve it ?
This my layout xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:fitsSystemWindows="true"
tools:context="com.paytabs.merchant.paytabsmerchant.Activities.RegisterOneActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:title="Create Your Account"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/r1toolbar"
android:layout_width="match_parent"
android:paddingTop="10dp"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
/>
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_register_one" />
</LinearLayout>
And this is what is inside content_register (Minimal Code, my controls inside this linear layout)
<ScrollView
android:fillViewport="true"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"
android:isScrollContainer="false"
xmlns:android="http://schemas.android.com/apk/res/android">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingBottom="50dp"
android:paddingTop="10dp"
android:paddingRight="20dp"
android:paddingLeft="20dp"
tools:context="com.paytabs.merchant.paytabsmerchant.Activities.RegisterOneActivity"
tools:showIn="#layout/activity_register_one">
</LinearLayout>
</ScrollView>

Android Linear Layout weight and soft keyboard issue

I'm trying to achieve the following view in a chat app. There are basically two states one with the soft touch keyboard showing and one without.
So this is my initial state without the keyboard showing.
This is what happens when the keyboard shows up.
This is what i'm trying to achieve.
Note
I'm current using "adjust-resize" as the windowSoftInputMode. I know using "adjust-pan" will fix the issue, but with "adjust-pan" there are 2 problems :
The toolbar also moves up making space for the edit-text and keyboard.
The editText gets partly covered by the keyboard.
A layout experts help is needed here!
Thanks in advance.
Edit:
This is what my XML looks like:
<RelativeLayout
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:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="#+id/view_group_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/colorPrimaryDark"
android:elevation="4dip" >
<!-- Toolbar stuff -->
</android.support.v7.widget.Toolbar>
</LinearLayout>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/bottom_bar"
android:layout_below="#+id/view_group_toolbar"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="0.6">
<include
layout="#layout/layout_that_covers_60%_of_the_screen (This is not my actual layout name :/ using it for understandability)"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<LinearLayout
android:id="#+id/view_group_recycler_view"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="0.4"
android:gravity="center_vertical">
<include
layout="#layout/layout_that_covers_40%_of_the_screen"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
</LinearLayout>
<RelativeLayout
android:id="#+id/bottom_bar"
android:layout_width="match_parent"
android:layout_height="60dip"
android:layout_alignParentBottom="true"
android:gravity="bottom"
android:padding="8dip" >
<!-- This is where my edit text resides -->
</RelativeLayout>
</RelativeLayout>

So here is what I think you should do,
use
windowSoftInputMode="adjustResize" - The activity's main window is always resized to make room for the soft keyboard on screen. Also adjustResize keeps the ToolBar on top.
Try adding both your LinearLayouts inside a NestedScrollView. The reason I say this is because your NestedScrollView contents can scroll up.
I think your Layout will look like this- .
<RelativeLayout
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:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="#+id/view_group_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/colorPrimaryDark"
android:elevation="4dip" >
<!-- Toolbar stuff -->
</android.support.v7.widget.Toolbar>
</LinearLayout>
<NestedScrollView
android:layout_above="#+id/bottom_bar"
android:layout_below="#+id/view_group_toolbar">
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="0.6">
<include
layout="#layout/layout_that_covers_60%_of_the_screen (This is not my actual layout name :/ using it for understandability)"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<LinearLayout
android:id="#+id/view_group_recycler_view"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="0.4"
android:gravity="center_vertical">
<include
layout="#layout/layout_that_covers_40%_of_the_screen"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
</LinearLayout>
</NestedScrollView>
<RelativeLayout
android:id="#+id/bottom_bar"
android:layout_width="match_parent"
android:layout_height="60dip"
android:layout_alignParentBottom="true"
android:gravity="bottom"
android:padding="8dip" >
<!-- This is where my edit text resides -->
</RelativeLayout>
Let me know if this works for you.
EDIT 1:
If you have a RecyclerView inside your layouts, you may need to set this attribute for smooth scroll -
recyclerView.setNestedScrollingEnabled(false);

LinearLayout isn't shown when included in content layout

I have a activity_pic.xml layout which includes content_pic.xml to define the layout of my app. The activity_pic.xml is below:
<?xml version="1.0" encoding="utf-8"?>
<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:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.example.olivia.myapplication.PicActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_pic" />
</android.support.design.widget.CoordinatorLayout>
content_pic.xml is
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<Button
android:id="#+id/pick_image_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/button_text"/>
<ImageView
android:id="#+id/image_view"
android:layout_height="wrap_content"
android:layout_width="wrap_content"/>
</LinearLayout>
When I include the line <include layout="#layout/content_pic" /> within the AppBarLayout (that is, I move it up two lines) the button appears, and all the functionality of the button works. However when I put it after that, the button does not appear, and all I can see is the 'App Bar' bit of the layout.
Ok so the picture below shows how I would like it to look (and how the design view shows content_pic.xml)
And here is what it actually looks like
However, when I put the <include layout="#layout/content_pic" /> into the AppBarLayout I can see the button, as shown in the image below.
I have tried taking the content of content_pic.xml and including it directly instead of using the include statement, this still does not appear.
I've run out of ideas here - can anyone suggest what might be going wrong?

AppBarLayout works good if you us NestedScrollView or RecyclerView
so I suggest you change your content_pic.xml TO.
<android.support.v4.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<Button
android:id="#+id/pick_image_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/button_text"/>
<ImageView
android:id="#+id/image_view"
android:layout_height="wrap_content"
android:layout_width="wrap_content"/>
</LinearLayout>
I hope this will Help.
EDIT
You Just need to Change your content_pic.xml to this
<android.support.v4.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
<!-- Importent -->
xmlns:app="http://schemas.android.com/apk/res-auto"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<Button
android:id="#+id/pick_image_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello" />
<ImageView
android:id="#+id/image_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
</android.support.v4.widget.NestedScrollView>

set background for activity containing AppbBarLayout

I am trying to use androids CoordinatorLayout and FrameLayout. What I want to have is a
toolbar
LinearLayout showing some info
tablayout
listviews
when the listviews are scrolled the toolbar and the LinearLayouts should scrollup and hide and the tabs should go at the top.
I have a layout of the type:
<android.support.v4.widget.DrawerLayout
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"
android:fitsSystemWindows="true">
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/coordinatorLayout"
android:layout_height="match_parent"
android:layout_width="match_parent">
<android.support.design.widget.AppBarLayout
android:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<-- stuff I want to hide on scrolling -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="scroll|enterAlways"
android:orientation="vertical">
<include
layout="#layout/toolbar"
app:layout_scrollFlags="scroll|enterAlways"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="scroll|enterAlways"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Gamercard content"
/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="More Gamercard content"
/>
</LinearLayout>
</LinearLayout>
<-- stuff I dont want to hide on scrolling -->
<android.support.design.widget.TabLayout
android:id="#+id/tabLayout"
android:scrollbars="horizontal"
android:layout_below="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</android.support.design.widget.AppBarLayout>
<!-- My Scrollable View -->
<include layout="#layout/nested_scrolling_container_view"/>
</android.support.design.widget.CoordinatorLayout>
</android.support.v4.widget.DrawerLayout>
What I want to do is have a picture as the background for the entire activity, but what I see is that the AppBarLayout part is always dark. Please help.

I could do it programmatically by setting the backgroundColor in code to Color.TRANSPARENT.
appbar.setBackgroundColor(Color.TRANSPARENT);