Develop Reference

How can I place two components in ScrollView, one being a cardView and other a recyclerView

I am new to android and trying to make a profile section of a social media app. The profile section is a fragment and inside this I wanted to have a CardView to hold user's information and then a RecyclerView to show user's posts. I have tried implementing this using a ScrollView and putting insinde the cardView and RecyclerView. I wanted both cardView and RecyclerView to be scroll as one, but currently the cardView is at its place and only elements in recyclerView are scrolling.
EDIT
NestedScrollView kind of worked for me. But I also wanted overScrollMode to work fine while scrolling to the end.
<ScrollView 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=".ui.profile.ProfileFragment">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<com.google.android.material.card.MaterialCardView
style="?attr/materialCardViewFilledStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp">
<androidx.cardview.widget.CardView
android:layout_width="120dp"
android:layout_height="120dp"
app:cardCornerRadius="100dp">
<ImageView
android:id="#+id/profileDisplayPicture"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:contentDescription="#string/user_profile_picture"
android:scaleType="centerCrop" />
</androidx.cardview.widget.CardView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_margin="10dp"
android:orientation="vertical">
<TextView
android:id="#+id/profileName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="#style/TextAppearance.AppCompat.Headline" />
<TextView
android:id="#+id/profileCollegeInfo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="#style/TextAppearance.AppCompat.Subhead" />
</LinearLayout>
</LinearLayout>
<com.google.android.material.divider.MaterialDivider
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal">
<ImageView
android:id="#+id/profileLinkedinBtn"
android:layout_width="36dp"
android:layout_height="36dp"
android:layout_margin="10dp"
android:contentDescription="#string/linkedin"
android:src="#drawable/ic_linkedin" />
<ImageView
android:id="#+id/profileMailBtn"
android:layout_width="36dp"
android:layout_height="36dp"
android:layout_margin="10dp"
android:contentDescription="#string/mail"
android:src="#drawable/ic_gmail" />
</LinearLayout>
</LinearLayout>
</com.google.android.material.card.MaterialCardView>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/profileRecyclerView"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</ScrollView>

Admob Not Enough Space for Banner Ad

I can not figure out how to fix this problem. I was getting error
Not enough space to show ad. Needs 360x50 dp, but only has 350x582 dp
.
and this is my layout code:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:padding="5dp"
android:orientation="vertical"
>
<EditText
android:id="#+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textMultiLine"
android:maxLines="4"
android:textSize="20dp" />
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:orientation="horizontal" >
<Button
android:id="#+id/button1"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Copy" />
<ImageView
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:id="#+id/imageView1"
android:onClick="keyBoardClick"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/keyboard" />
<Button
android:id="#+id/button2"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Share" />
</LinearLayout>
<GridView
android:id="#+id/gridView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:gravity="center"
android:numColumns="8" >
</GridView>
<com.google.android.gms.ads.AdView
android:id="#+id/adView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
ads:adSize="SMART_BANNER"
ads:adUnitId="myAdMobID" >
</com.google.android.gms.ads.AdView>
What is wrong there, because I have match_parent for width and wrap content for height on adView.

AdMob may or may not complain about "having enough room" but it will not show up if there is padding in the parent view. You need to wrap the views you want to have padding in either another layout or add padding to that particular view directly.
Please remove the padding from the parent layout:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical"
>

You should use wrap_content both for width and height.
<com.google.android.gms.ads.AdView
android:id="#+id/adView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
ads:adSize="SMART_BANNER"
ads:adUnitId="myAdMobID" >

Why doesn't my linear layout match my parent height in listview?

I have the following code
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/itemLayoutView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="#dimen/list_view_layout_margin"
android:paddingRight="#dimen/list_view_layout_margin"
android:background="#color/yellow">
<LinearLayout
android:id="#+id/itemLinearLayoutView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/gameNameView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="#dimen/game_list_text_size" />
<TextView
android:id="#+id/gameCreationDateView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#color/gray"
android:textSize="#dimen/small_text_size"
android:textStyle="italic" />
</LinearLayout>
<LinearLayout
android:id="#+id/LinearLayoutView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/red"
android:orientation="horizontal" >
<Button
android:id="#+id/infoButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/info" />
<Button
android:id="#+id/deleteButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/delete" />
</LinearLayout>
</RelativeLayout>
The LinearLayout with id itemLinearLayoutView is the main layout that wrap everything in a row of listview. The problem I am having is that the second linear layout child does not take the height of the parent linear layout with id itemLinearLayoutView. Any solutions? or Problem with the code?

Your problem lies here:
android:layout_height="wrap_content"
This needs to be changed to "match_parent" in the LinearLayout which you want to be the parent's size. Also, you said
the second linear layout child does not take the height of the parent linear layout
These two layouts are not parents and children to one another. The parent is your RelativeLayout and both of your LinearLayouts are equivalent children of that RelativeLayout. Maybe this will help you debug any further problems you encounter.

just change the layout height to match parent . problem will be resolved.
<LinearLayout
android:id="#+id/itemLinearLayoutView"
android:layout_width="match_parent"
// use match_parent instead of wrap_content
android:layout_height="match_parent"
android:orientation="vertical" >

the layout needs to be nested within the first linear layout to take the parameters of it, and the value of the layout height needs to be changed. Code as Follows.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/itemLayoutView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="#dimen/list_view_layout_margin"
android:paddingRight="#dimen/list_view_layout_margin"
android:background="#color/yellow">
<LinearLayout
android:id="#+id/itemLinearLayoutView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/gameNameView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="#dimen/game_list_text_size" />
<TextView
android:id="#+id/gameCreationDateView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#color/gray"
android:textSize="#dimen/small_text_size"
android:textStyle="italic" />
<LinearLayout
android:id="#+id/LinearLayoutView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/red"
android:orientation="horizontal" >
<Button
android:id="#+id/infoButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/info" />
<Button
android:id="#+id/deleteButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/delete" />
</LinearLayout>
</LinearLayout>

<LinearLayout
android:id="#+id/itemLinearLayoutView"
android:layout_width="match_parent"
android:layout_height="match_parent" <!-- you should use match_parent here -->
android:orientation="vertical" >

// try this way i have used LinearLayout as parent rather than RelativeLayout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/itemLayoutView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingLeft="#dimen/list_view_layout_margin"
android:paddingRight="#dimen/list_view_layout_margin"
android:background="#color/yellow">
<LinearLayout
android:id="#+id/itemLinearLayoutView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/gameNameView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="#dimen/game_list_text_size" />
<TextView
android:id="#+id/gameCreationDateView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#color/gray"
android:textSize="#dimen/small_text_size"
android:textStyle="italic" />
</LinearLayout>
<LinearLayout
android:id="#+id/LinearLayoutView"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:gravity="right"
android:background="#color/red"
android:orientation="horizontal" >
<Button
android:id="#+id/infoButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/info" />
<Button
android:id="#+id/deleteButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/delete" />
</LinearLayout>
</LinearLayout>

Make height of layout wrap only one of child views

I have RelativeLayout and inside it, there is an ImageView and a TextView, in that order. I want the ImageView to have height of match_parent but I want the RelativeLayout to have height of wrap_content of the TextView inside it. How can I make it so?
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView
android:id="#+id/photo"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:id="#+id/content"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>

Use this it will work as I understand your problem
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#CC0000" >
<ImageView
android:id="#+id/photo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:background="#FF9966"
android:layout_alignBottom="#+id/content"
android:layout_alignTop="#+id/content"
android:src="#drawable/ic_launcher" />
<TextView
android:layout_toRightOf="#+id/photo"
android:id="#+id/content"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#FF3399"
android:text="asdjajdasdjajdasdjaddtegrgfhfhfhfhhfh" />
</RelativeLayout>

Try this..
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView
android:id="#+id/photo"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
<TextView
android:id="#+id/content"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
/>
</RelativeLayout>

Unable to make all UI components appear in RelativeLayout

I want a RelativeLayout based android UI that looks like the below mock graphic:
Below is my layout xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/RelativeLayoutForPreview"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<!-- surface view that contains camera preview , and seats above #+id/linearLayoutToolbar -->
<SurfaceView
android:id="#+id/surfaceViewBarcodeScanner"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<!-- LinearLayout that contains toolbar that is divided into 3 sections horizontally -->
<LinearLayout
android:id="#+id/linearLayoutToolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/surfaceViewBarcodeScanner"
android:orientation="horizontal" >
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/scanner_bottom_left" />
<ImageView
android:id="#+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/scanner_bottom_center_toolbar" />
<ImageView
android:id="#+id/imageView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/scanner_bottom_right_landscape_button" />
</LinearLayout>
</RelativeLayout>
I used Eclipse GUI palette and my own editing , however the output was not what I expected, the SurfaceView seems to covering all the screen, the LinearLayout at the bottom does not appear.
Snapshot of my current result on Galaxy S3 device:
Any help will be appreciated, Thanks.

Could you please try out to modify your layout as the follows:
Define your SurfaceView and set it's layout_above value to the ID of the linear layout made in the previous step. Set the layout_alignParentTop to true.
Define your bottom linear layout and set the layout_alignParentBottom to true.
Smart code snippet with only the important parts:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android">
<SurfaceView
android:id="#+id/surfaceViewBarcodeScanner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_above="#+id/linearLayoutToolbar" />
<LinearLayout
android:id="#+id/linearLayoutToolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" />
</RelativeLayout>
I hope this will solve your problem.

you can use Linearlayout instead of Realtive Layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<SurfaceView
android:id="#+id/surfaceViewBarcodeScanner"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1" />
<LinearLayout
android:id="#+id/linearLayoutToolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<!-- inside elements -->
</LinearLayout>
</LinearLayout>
else you should use android:layout_above="#+id/linearLayoutToolbar" to your surfaceview
and remove android:layout_below attribute and add android:layout_alignParentBottom="true" to your toolbar view.

// try this
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/LinearLayoutForPreview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="5dp"
android:orientation="vertical">
<LinearLayout
android:layout_height="0dp"
android:layout_weight="1"
android:layout_width="match_parent">
<SurfaceView
android:id="#+id/surfaceViewBarcodeScanner"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayoutToolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="0dp"
android:gravity="center"
android:layout_weight="1">
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/scanner_bottom_left" />
</LinearLayout>
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="0dp"
android:gravity="center"
android:layout_weight="2">
<ImageView
android:id="#+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/scanner_bottom_center_toolbar" />
</LinearLayout>
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="0dp"
android:gravity="center"
android:layout_weight="1">
<ImageView
android:id="#+id/imageView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/scanner_bottom_right_landscape_button" />
</LinearLayout>
</LinearLayout>
</LinearLayout>