Develop Reference

Why aren't my paddings being applied to my image view?

I am trying to position my bookImageTo the left by 15dp but when I add paddings to it nothing happens it remains unchanged. My textviews are responsive to changes when paddings are added to it, but I am not sure why my image view is not. Some help would be greatly appreciated.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#color/colorPrimaryDark">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#color/colorPrimaryDark"
android:orientation="vertical">
<ImageView
android:id="#+id/bookImage"
android:layout_width="170dp"
android:paddingLeft="#dimen/album_title_padding(this is equal to 15dp)"
android:paddingTop="#dimen/album_title_padding"
android:paddingRight="#dimen/album_title_padding"
android:layout_height="170dp" />
<TextView
android:id="#+id/bookTitleTv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/bookImage"
android:paddingLeft="#dimen/album_title_padding"
android:paddingTop="#dimen/album_title_padding"
android:paddingRight="#dimen/album_title_padding"
android:textColor="#424242"
android:textSize="#dimen/album_title" />
<TextView
android:id="#+id/bookAuthorTv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/bookTitleTv"
android:paddingLeft="#dimen/album_title_padding"
android:paddingRight="#dimen/album_title_padding"
android:paddingBottom="#dimen/songs_count_padding_bottom"
android:textSize="#dimen/songs_count"
android:textStyle="italic" />
<TextView
android:id="#+id/overflow"
android:layout_width="#dimen/ic_album_overflow_width"
android:layout_height="#dimen/ic_album_overflow_height"
android:layout_below="#+id/bookAuthorTv"
android:layout_alignBottom="#+id/bookAuthorTv"
android:layout_alignParentEnd="true"
android:textSize="15sp"
android:layout_alignParentRight="true"
android:layout_marginTop="-29dp"
android:layout_marginEnd="1dp"
android:layout_marginRight="1dp"
android:layout_marginBottom="0dp"
android:text="#string/vertical_ellipsis"
android:textColor="#color/colorPrimary" />
</LinearLayout>
</LinearLayout>

Based on my understanding about your concern, you only want to put a space on the left specifically for the ImageView only inside the LinearLayout? I tried your code and this is the preview:
Use android:layout_marginLeft="15dp" instead of using paddingLeft. After applying this code, preview looks like this:

Try using
android:layout_marginLeft="#dimen/album_title_padding"
android:layout_marginTop="#dimen/album_title_padding"
android:layout_marginRight="#dimen/album_title_padding"
This is discussed here Padding in ImageView is not Working
Instead of wrap_content for both the linear layout. Do match_parent.

Android TextView not wrapping content when system wide font scaled larger

In my app I'm trying to adjust this layout so it's readable when the user scales the system wide font size in Android System settings -> Display -> Font size (or in accessibility settings on some devices). Doing some digging I found out this adjusts the device configuration font scale (getResources().getConfiguration.fontScale) from 1.0 to 1.15.
I'm getting some weird behavior in a LinearLayout where one of the TextViews width gets crushed, when it's set to wrap_content, and also doesn't reflect a set minWidth.
What it looks like normally
What it looks like when font is scaled
Here is the LinearLayout in question (comments added for context in screenshot)
<LinearLayout
android:id="#+id/sectionPaintStatus"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="20dp"
android:layout_marginTop="20dp"
android:gravity="center_vertical"
android:orientation="horizontal">
<!-- () 6 Paint Items -->
<LinearLayout
android:id="#+id/sectionPaintItemToggle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:clipToPadding="false"
android:gravity="center_vertical"
android:orientation="horizontal"
android:paddingBottom="5dp">
<android.support.design.widget.FloatingActionButton
android:id="#+id/fabExpandPaintItems"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:rotation="180"
android:src="#drawable/ic_collapse"
app:elevation="2dp"
app:fabSize="mini"/>
<TextView
android:id="#+id/tvPaintItemCount"
style="#style/Label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="5dp"
android:text="0 Paint Items"
android:textSize="16sp"/>
<ImageView
android:id="#+id/imgPaintAreaWarning"
android:layout_width="20dp"
android:layout_height="match_parent"
android:layout_marginStart="10dp"
android:scaleType="centerInside"
android:src="#drawable/ic_edit_warning2"
android:visibility="invisible"/>
</LinearLayout>
<!-- Inner layout to consume middle width and right align the rest -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="end"
android:orientation="horizontal">
<LinearLayout
android:id="#+id/layoutPaintItemCount"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="end"
android:orientation="vertical"
android:visibility="invisible">
<TextView
android:id="#+id/tvPaintItemCountStatus"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="2"
android:textSize="16sp"
android:textStyle="bold"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Paint Items"
android:textSize="16sp"/>
</LinearLayout>
<ImageView
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_marginStart="30dp"
android:scaleType="centerInside"
android:src="#drawable/ic_time"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="end"
android:orientation="vertical">
<TextView
android:id="#+id/tvPaintTime"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="2.5h"
android:textSize="16sp"
android:textStyle="bold"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Time"
android:textSize="16sp"/>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="30dp"
android:layout_marginEnd="30dp"
android:minWidth="70dp"
android:gravity="end"
android:orientation="vertical">
<TextView
android:id="#+id/tvPaintTotal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="$123.22"
android:textSize="16sp"
android:textStyle="bold"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Total"
android:textSize="16sp"/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
Why is that last LinearLayout containing 2 TextViews not properly wrapping content? I tried removing the minWidth incase that was causing any issues and got the same result. I don't understand why all the other layouts wrap their content properly but the last one doesn't.
And is it possible to add a resource folder for scaled system wide font?
Edit It appears removing margins allow the TextView to wrap the proper width but obviously I need the margins.
Can anyone explain this strange behavior?
Edit Solved
It turns out I completely forgot about an invisible element in the layout between the "Paint Items" label and the time icon. It was causing me to run out of horizontal space.

You appear to have used layout_width="match_parent" and gravity="end" to align your elements.
I assume on small devices (or with large text) you'd like the "0 Paint Items" to ellipsize when not enough space, and have the 'Time' and 'Total' fields to show at full width.
To do this, we make the following changes:
First, make the sectionPaintItemToggle have 0dp width and layout_weight="1" - this tells Android "this should fill as much space is available".
<LinearLayout
android:id="#+id/sectionPaintItemToggle"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
... >
I removed all the gravity="end" settings.
I changed the "inner layout" (as per the comment) to be have wrap_content width.
I deleted the entire layoutPaintItemCount layout - I feel like you were trying a different way to do the "N paint items" layout.
In the end, we have something like this (I swapped in an ImageView for the FAB and just used resources I already had - I think I changed some margins too):
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android:id="#+id/sectionPaintStatus"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginEnd="20dp"
android:layout_marginStart="20dp"
android:layout_marginTop="20dp"
android:gravity="center_vertical"
>
<!-- () 6 Paint Items -->
<LinearLayout
android:id="#+id/sectionPaintItemToggle"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:clipToPadding="false"
android:gravity="center_vertical"
android:orientation="horizontal"
android:paddingBottom="5dp">
<ImageView
android:id="#+id/fabExpandPaintItems"
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_margin="5dp"
android:rotation="180"
android:src="#drawable/ic_edit_black_24dp"/>
<TextView
android:id="#+id/tvPaintItemCount"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="5dp"
android:text="0 Paint Items"
android:textSize="16sp"/>
<ImageView
android:id="#+id/imgPaintAreaWarning"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginStart="10dp"
android:scaleType="centerInside"
android:src="#drawable/ic_edit_black_24dp"
android:visibility="invisible"/>
</LinearLayout>
<!-- Inner layout to consume middle width and right align the rest -->
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:layout_width="50dp"
android:layout_height="50dp"
android:scaleType="centerInside"
android:src="#drawable/ic_edit_black_24dp"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/tvPaintTime"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="2.5h"
android:textSize="16sp"
android:textStyle="bold"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Time"
android:textSize="16sp"/>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="30dp"
android:layout_marginStart="30dp"
android:orientation="vertical">
<TextView
android:id="#+id/tvPaintTotal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="$123.22"
android:textSize="16sp"
android:textStyle="bold"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Total"
android:textSize="16sp"/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
The key part was to convince Android that the "N Paint Items" view was the one you wanted to shrink.

Android Studio, wrap ImageView size around the x and y scale of the actual image

I have an ImageView with a mail icon, however, it was too big so i reduced its size.
The actual size of the image is smaller, but the content it wraps is still the same, resulting in my lines not being even. The image below demonstrates my problem
As you can see, the size of the imageview does not wrap around the image itself.
Below is the XML for the imageview
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#mipmap/ic_mail"
android:scaleType="fitXY"
android:adjustViewBounds="true"
android:scaleX="0.5"
android:scaleY="0.5"/>
Is there a way to fix this?
Below this is the full XML for the whole layout if that would help
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:background="#color/PaleGrey">
<Space
android:id="#+id/dummyTopSpaceSc"
android:layout_width="wrap_content"
android:layout_height="10dp"
android:layout_alignParentTop="true"/>
<TextView
android:id="#+id/nameTextView"
android:paddingLeft="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/dummyTopSpaceSc"
android:text="name"
android:textStyle="bold"/>
<TextView
android:id="#+id/titleTextView"
android:layout_width="wrap_content"
android:paddingLeft="10dp"
android:layout_height="wrap_content"
android:layout_below="#+id/nameTextView"
android:text="title"/>
<android.support.percent.PercentRelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/titleTextView"
android:id="#+id/phoneContainer">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#mipmap/ic_phone"
android:scaleType="fitCenter"
android:scaleX="0.5"
android:scaleY="0.5"/>
<TextView
android:id="#+id/phoneTextView"
android:layout_width="wrap_content"
android:layout_centerVertical="true"
app:layout_marginLeftPercent="15%"
android:layout_height="wrap_content"
android:autoLink="phone"
android:text="phone"/>
</android.support.percent.PercentRelativeLayout>
<!-- below this comment is the container for the mail icon -->
<android.support.percent.PercentRelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/mailContainer"
android:layout_below="#+id/phoneContainer">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#mipmap/ic_mail"
android:scaleType="fitXY"
android:adjustViewBounds="true"
android:scaleX="0.5"
android:scaleY="0.5"/>
<TextView
android:id="#+id/emailTextView"
android:layout_width="wrap_content"
android:layout_centerVertical="true"
app:layout_marginLeftPercent="15%"
android:layout_height="wrap_content"
android:autoLink="email"
android:text="email"/>
</android.support.percent.PercentRelativeLayout>
<Space
android:id="#+id/dummyBottomSpaceSc"
android:layout_width="wrap_content"
android:layout_height="10dp"
android:layout_below="#id/mailContainer"/>
</RelativeLayout>

You should resize your image by giving it exact values for width and height instead of wrap_content if you actually want the bounding box to get smaller as you change the size. Then you can add padding/margins back to it as you wish. Also, you should use the android:src attribute (or maybe even app:srcCompat) instead of android:background.
<ImageView
android:layout_width="32dp"
android:layout_height="32dp"
android:src="#mipmap/ic_mail" />

How to set background opacity of a textview placed on to of ImageView

I would like to achieve the following result where there is a transparent background over the name.:
So far this is what i have done (ignore the black border surrounding the image):
i would like to have a transparent background (actually a colored background with its opacity adjusted).
Here is the XML code i have been using:
<RelativeLayout
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"
android:padding="5dp">
<ImageView
android:id="#+id/iconItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_gravity="center"
android:src="#drawable/shout_ic"/>
<TextView
android:id="#+id/textItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_alignBottom="#+id/iconItem"
android:paddingBottom="5dip"
android:textSize="10sp"
android:textColor="#FFF"/>
</RelativeLayout>
Can anyone points me to the right direction on how to achieve such things? Thx

In your TextView definition, add:
android:background="#8888"
888 being a mid grey (888888), with 8 being a mid alpha (88)
OR
android:background="#8000"
000 being a black (000000), with 8 being a mid alpha (88)

You can set background color through xml as shown in other answers.
Also dynamically you can getBackgtound and set alpha.
textItem.getBackground().setAlpha(100); // int value between 0 and 255

Add the background property to your text view like this:
<TextView
android:id="#+id/textItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_alignBottom="#+id/iconItem"
android:paddingBottom="5dip"
android:textSize="10sp"
android:textColor="#FFF"
android:background="#70000000"/>

Try adding
android:alpha="0.5"
to the TextView, it should make it semi transparent

Add android:background to the textView
<TextView
android:id="#+id/textItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_alignBottom="#+id/iconItem"
android:background="#80000000"
android:paddingBottom="5dip"
android:textSize="10sp"
android:textColor="#FFF"/>
And you can change the Transparency according to the percentage
Check this understanding the Color codes in android

<FrameLayout
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"
android:padding="5dp">
<ImageView
android:id="#+id/iconItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:src="#drawable/shout_ic"/>
<TextView
android:id="#+id/textItem"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_alignBottom="#+id/iconItem"
android:paddingBottom="5dip"
android:textSize="10sp"
android:textColor="#FFF"/>
</FrameLayout>

How to show the text on a ImageButton?

I have an ImageButton and I want to show a text and an image on it. But when I try on emulator:
<ImageButton
android:text="OK"
android:id="#+id/buttonok"
android:src="#drawable/buttonok"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
I get the image but without the text. How can I show the text? Please help me!

As you can't use android:text I recommend you to use a normal button and use one of the compound drawables. For instance:
<Button
android:id="#+id/buttonok"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:drawableLeft="#drawable/buttonok"
android:text="OK"/>
You can put the drawable wherever you want by using: drawableTop, drawableBottom, drawableLeft or drawableRight.
UPDATE
For a button this too works pretty fine. Putting android:background is fine!
<Button
android:id="#+id/fragment_left_menu_login"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/button_bg"
android:text="#string/login_string" />
I just had this issue and is working perfectly.

It is technically possible to put a caption on an ImageButton if you really want to do it. Just put a TextView over the ImageButton using FrameLayout. Just remember to not make the Textview clickable.
Example:
<FrameLayout>
<ImageButton
android:id="#+id/button_x"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#null"
android:scaleType="fitXY"
android:src="#drawable/button_graphic" >
</ImageButton>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:clickable="false"
android:text="TEST TEST" >
</TextView>
</FrameLayout>

Guys I need to develop the setting and logout button, I used the below code.
<Button
android:id="#+id/imageViewLogout"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_margin="#dimen/size_30dp"
android:layout_alignParentLeft="true"
android:text="Settings"
android:drawablePadding="10dp"
android:background="#android:color/transparent"
android:layout_alignParentBottom="true"
android:drawableTop="#drawable/logout" />

Actually, android:text is not an argument accepted by ImageButton
but, If you're trying to get a button with a specified background (not android default) use the android:background xml attribute, or declare it from the class with .setBackground();

I solved this by putting the ImageButton and TextView inside a LinearLayout with vertical orientation. Works great!
<LinearLayout
android:id="#+id/linLayout"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:orientation="vertical" >
<ImageButton
android:id="#+id/camera_ibtn"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_gravity="center"
android:background="#drawable/camera" />
<TextView
android:id="#+id/textView2"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:gravity="center"
android:text="#string/take_pic"
android:textColor="#FFFFFF"
android:textStyle="bold" />
</LinearLayout>

You can use a LinearLayout instead of using Button it's an arrangement i used in my app
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="20dp"
android:background="#color/mainColor"
android:orientation="horizontal"
android:padding="10dp">
<ImageView
android:layout_width="50dp"
android:layout_height="50dp"
android:background="#drawable/ic_cv"
android:textColor="#color/offBack"
android:textSize="20dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:text="#string/cartyCv"
android:textColor="#color/offBack"
android:textSize="25dp" />
</LinearLayout>

you can use a regular Button and the android:drawableTop attribute (or left, right, bottom) instead.

Best way:
<Button
android:text="OK"
android:id="#+id/buttonok"
android:background="#drawable/buttonok"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>

Heres a nice circle example:
drawable/circle.xml:
<?xml version="1.0" encoding="utf-8"?>
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval">
<solid
android:color="#ff87cefa"/>
<size
android:width="60dp"
android:height="60dp"/>
</shape>
And then the button in your xml file:
<Button
android:id="#+id/btn_send"
android:layout_width="60dp"
android:layout_height="60dp"
android:background="#drawable/circle"
android:text="OK"/>

Here is the solution
<LinearLayout
android:id="#+id/buttons_line1"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageButton
android:id="#+id/btn_mute"
android:src="#drawable/btn_mute"
android:background="#drawable/circle_gray"
android:layout_width="60dp"
android:layout_height="60dp"/>
<ImageButton
android:id="#+id/btn_keypad"
android:layout_marginLeft="50dp"
android:src="#drawable/btn_dialpad"
android:background="#drawable/circle_gray"
android:layout_width="60dp"
android:layout_height="60dp"/>
<ImageButton
android:id="#+id/btn_speaker"
android:layout_marginLeft="50dp"
android:src="#drawable/btn_speaker"
android:background="#drawable/circle_gray"
android:layout_width="60dp"
android:layout_height="60dp"/>
</LinearLayout>
<LinearLayout
android:layout_below="#+id/buttons_line1"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_marginTop="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:text="mute"
android:clickable="false"
android:textAlignment="center"
android:textColor="#color/Grey"
android:layout_width="60dp"
android:layout_height="wrap_content"/>
<TextView
android:text="keypad"
android:clickable="false"
android:layout_marginLeft="50dp"
android:textAlignment="center"
android:textColor="#color/Grey"
android:layout_width="60dp"
android:layout_height="wrap_content"/>
<TextView
android:text="speaker"
android:clickable="false"
android:layout_marginLeft="50dp"
android:textAlignment="center"
android:textColor="#color/Grey"
android:layout_width="60dp"
android:layout_height="wrap_content"/>
</LinearLayout>

Best way to show Text on button(with image)
Your Question: How to show text on imagebutton?
Answer: You can not display text with imageButton. Method that tell in Accepted answer also not work.
because
If you use android:drawableLeft="#drawable/buttonok" then you can not set drawable in center of button.
If you use android:background="#drawable/button_bg" then color of your drawable will be changed.
In android world there are thousands of option to do this. But here i provide best alternate according to my point of view. (see below)
Solution: Use cardView with LinearLayout
Your drawable/image use in LinearLayout because it shows in center. And with help of textView you can set text on this. We makes cardView background to transparent.
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="99dp"
android:layout_margin="16dp"
app:cardBackgroundColor="#android:color/transparent"
app:cardElevation="0dp"
app:cardUseCompatPadding="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/your_selected_image"
>
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Happy Coding"
android:textSize="33sp"
android:gravity="center"
>
</TextView>
</LinearLayout>
</androidx.cardview.widget.CardView>
here i explain some terms:
app:cardBackgroundColor="#android:color/transparent" for make transparent background of cardView
app:cardElevation="0dp" for hide evelation lines around cardView
app:cardUseCompatPadding="true" its provide actual size of cardView. Always use this when you use cardView
set your image/drawable in LinearLayout as a background.
Sorry, for my Bad English.
Happy Coding:)

ImageButton can't have text (or, at least, android:text isn't listed in its attributes).
The Trick is:
It looks like you need to use Button (and look at drawableTop or setCompoundDrawablesWithIntrinsicBounds(int,int,int,int)).