Develop Reference

How to position vector image in RecyclerView item template

Is there a way to adjust the alignment of the menu dots in the RecyclerView item so that it's positioned exactly underneath the overflow dots in the Toolbar (i.e. in its original place where it should be)? I tried adjusting the item weights but that didn't work.
<LinearLayout
android:id="#+id/ll_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="100">
<TextView android:id="#+id/rvitem_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:ellipsize="marquee"
android:textColor="?android:attr/textColorPrimary"
android:fadingEdge="horizontal"
android:layout_weight="90"/>
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="More options"
android:clickable="true"
android:focusable="true"
android:layout_gravity="end"
android:src="#drawable/ic_more_vertical"
android:background="#null"
android:tint="?attr/colorOverflow"
android:layout_weight="10"/>
</LinearLayout>
<TextView android:id="#+id/rvitem_subtitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:ellipsize="marquee"
android:textColor="?android:attr/textColorSecondary"
android:layout_below="#id/ll_title"
android:fadingEdge="horizontal" />
Current result
Expected result

#MacaronLover, The approach you are taking to make the view align by assigning the weight seems to be in the right direction. I have taken your xml file and made some adjustments here:
<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="horizontal"
android:paddingStart="16dp"
android:paddingTop="8dp"
android:paddingEnd="8dp"
android:paddingBottom="8dp">
<ImageView
android:id="#+id/firstImage"
android:layout_width="90dp"
android:layout_height="90dp"
tools:background="#000" />
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginEnd="8dp"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:id="#+id/titleText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
tools:text="Title A" />
<TextView
android:id="#+id/subTitleText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
tools:text="Subtitle A" />
</LinearLayout>
<ImageView
android:id="#+id/secondImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_vertical_dots" />
</LinearLayout>
The idea here is to aligh our view with the toolbar's padding. By default, the toolbar sets 16dp padding on start and end.
So, to start with in our view, we set paddingStart and paddingEnd to be 16dp. Now, to adjust vertical padding, we set that to 8dp as it adjusts with the top and below items. Set, the orientation of parent to horizontal.
Then, we add first ImageView and sets its layoutWidth/Height to the values we want.
Then add the LinearLayout that holds the two TextViews and set it's orientation to vertical and layout_width to 0dp and add the two child TextViews.
Then finally add the overflow ImageView and provide the attributes. Since we set the first image and last image dimensions as static values, when the view is drawn, the width is allocated to these first and the remaining of the width goes to the textview container LinearLayout.
If we note at the pre-view attached, there might seem to be a bit more padding at the end. It is due to the dot image src we are assigning to the second image. It doesn't fill the ImageView and hence looks like extra padding. We can adjust this by adjusting the paddingEnd value of our parent LinearLayout.
Please comment if there are any confusions.

See this Image
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:layout_marginStart="10dp"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Title A"
android:textSize="20sp"
android:textColor="#000"
android:textStyle="bold"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Subtitle A"
android:textSize="17sp"
android:textColor="#000" />
</LinearLayout>
<ImageView
android:layout_width="40dp"
android:padding="13dp"
android:layout_height="match_parent"
android:src="#drawable/ic_menu"/>
</LinearLayout>

Android Recycler View Item Layout Problem

I'm designing an app in Android Studio. In the preview it looks like I want but when building the application there is a LinearLayout that contains two TextViews that looks smaller and I do not understand why
This is the Recycler View Item:
<?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:id="#+id/friend_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/profile_picture"
android:layout_width="44dp"
android:layout_height="44dp"
android:src="#drawable/head" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="1dp"
android:gravity="left"
android:paddingLeft="2dp"
android:paddingRight="2dp"
android:textColor="#color/white"
android:textSize="16sp"
android:textStyle="bold"
tools:text="Guillermo Rodriguez" />
<TextView
android:id="#+id/friend_position"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="left"
android:text="delantero"
android:textColor="#color/white"
android:textSize="13sp" />
</LinearLayout>
This is how it looks: https://photos.app.goo.gl/BgNQhgpNKbgEGCCR6 and I need to the text fill the entirety width
I expect to see both TextView until the end of the screen but they end before the middle. Any ideas?

If I understood your question correctly, you must want the two TextViews to fill the entirety of the height, is that it?
In that case, in both your TextViews, change your layout_height attribute to 0dp and add android:layout_weigth=0.5 to them. This will make them fill the entire height of your LinearLayout, whichever height that might be, and they will be dividing the space right in the middle.

I recommend you utilize LinearLayout's weight attribute. set your root LinearLayout's to match_parent. and your nested LinearLayout and both TextView's layout_height to 0dp and their weight to 1
here's the edited code:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/friend_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/profile_picture"
android:layout_width="44dp"
android:layout_height="44dp"
android:src="#drawable/head" />
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:id="#+id/name"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_marginStart="1dp"
android:gravity="left"
android:paddingLeft="2dp"
android:paddingRight="2dp"
android:textColor="#color/white"
android:textSize="16sp"
android:textStyle="bold"
tools:text="Guillermo Rodriguez" />
<TextView
android:id="#+id/friend_position"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="left"
android:text="delantero"
android:textColor="#color/white"
android:textSize="13sp" />
</LinearLayout>
</LinearLayout>

Please check if your RecycleView has the proper width set (e.g. match_parent) and it can stretch to the whole width. Could you provide the xml code with the RecycleView?

i think you set the recyclerview to specific width. try to cahngethe width into match parent.
I recommend to user constraintlayout to avoid nested viewgroup. like this:
<androidx.constraintlayout.widget.ConstraintLayout
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/friend_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/profile_picture"
android:layout_width="44dp"
android:layout_height="44dp"
android:src="#drawable/patient"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintStart_toStartOf="parent"/>
<TextView
android:id="#+id/name"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="1dp"
android:gravity="left"
android:paddingLeft="2dp"
android:paddingRight="2dp"
android:textColor="#android:color/white"
android:textSize="16sp"
android:textStyle="bold"
tools:text="Guillermo Rodriguez"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/profile_picture"/>
<TextView
android:id="#+id/friend_position"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:gravity="left"
android:text="delantero"
android:textColor="#android:color/white"
android:textSize="13sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/profile_picture"
app:layout_constraintTop_toBottomOf="#+id/name"/>

I solved it! Someone configured it whit GridLayoutManager and it had to be with LinearLayoutManager.. I changed it and it was fixed

android nested LinearLayout sizing

I am trying to achieve the following layout for my expandable listview.
Layout
Problem:
On android previewer the layout looks as expected:
refer to first image in attachment below.
However, when I run it on an emulator or a device the second TextView is not displayed.
refer to second image in attachment below
I have to set the height of the second ImageView (ivGroupIndicator) to match parent in order for the second TextView to display. But this stretches the expandable arrow icon.
refer to last image in attachment below
Images
Here is my layout.xml
<?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="50dp"
android:orientation="horizontal">
<ImageView
android:layout_width="25dp"
android:layout_height="match_parent"
android:src="#drawable/ci_hand_cursor"
android:layout_gravity="center" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingLeft="5dp"
android:paddingTop="5dp"
android:layout_weight="0.8">
<TextView
android:id="#+id/route_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Dhelhi Belhi"
android:fontFamily="sans-serif"
android:textSize="16sp"
android:textStyle="bold"
android:textColor="#color/colorPrimaryText"
android:paddingBottom="2dp"/>
<TextView
android:id="#+id/route_schedule_date"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="20-September-2017"
android:fontFamily="sans-serif"
android:textSize="14sp"
android:textColor="#color/colorSecondaryText"
android:paddingBottom="5dp"/>
</LinearLayout>
<ImageView
android:id="#+id/ivGroupIndicator"
android:layout_width="25dp"
android:layout_height="match_parent"
android:background="#drawable/group_indicator"
android:layout_gravity="center"/>
</LinearLayout>
What am i missing here?

This should do the trick:
Use 0dp as height/width when using weights
Weight can just be 1 (not 0.8)
Use equal weights on the 2 text views so they share equal vertical space
Set gravity to center_vertical on text views so the text is centered.
set scale type on image so it doesn't stretch.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="50dp"
android:orientation="horizontal">
<ImageView
android:layout_width="25dp"
android:layout_height="match_parent"
android:layout_gravity="center"
android:scaleType="centerInside"
android:src="#drawable/ci_hand_cursor" />
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="vertical"
android:paddingLeft="5dp"
android:paddingTop="5dp">
<TextView
android:id="#+id/route_name"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:fontFamily="sans-serif"
android:gravity="center_vertical"
android:text="Dhelhi Belhi"
android:textColor="#color/colorPrimaryText"
android:textSize="16sp"
android:textStyle="bold" />
<TextView
android:id="#+id/route_schedule_date"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:fontFamily="sans-serif"
android:gravity="center_vertical"
android:text="20-September-2017"
android:textColor="#color/colorSecondaryText"
android:textSize="14sp" />
</LinearLayout>
<ImageView
android:id="#+id/ivGroupIndicator"
android:layout_width="25dp"
android:layout_height="match_parent"
android:layout_gravity="center"
android:background="#drawable/group_indicator"
android:scaleType="centerInside" />
</LinearLayout>

The problem maybe is that you set the height of the parent layout to 50dp. Try to set it to wrap content, and use height=0dp and weight=1 for the vertical LinearLayout

Android LinearLayout View item in xml does not fill empty space

I am new to android, I have a linear layout list item and would like the TextView itemName to fill the remaining blank space on the row while the other two views (itemIcon and itemTimestamp) just take up as much space as they require hence used wrap_content.
I have tried fill_parent and match_parent on ItemName android:layout_width but it ends up hiding itemTimestamp view. I have tried RelativeLayout but had no luck, would prefer to stick with Linearlayout if possible.
Appreciate your help.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/itemNotificationBuzz"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffff0000"
>
<LinearLayout
android:id="#+id/notificationHeader"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal"
android:background="#ffff0000"
>
<ImageView
android:id="#+id/notificationIcon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="left"
android:maxHeight="35dp"
android:maxWidth="35dp"
android:background="#FF000000"
android:padding="1dp"
android:src="#drawable/ic_action_place" />
<TextView
android:id="#+id/notificationName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:padding="5dp"
android:textSize="18sp"
android:textColor="#android:color/white"
android:background="#A4C739"
android:typeface="sans"
android:textStyle="bold"
android:maxLines="1"
android:text="Fname Lname"
/>
<TextView
android:id="#+id/notificationTimestamp"
android:layout_width = "wrap_content"
android:layout_height="wrap_content"
android:gravity="right"
android:background="#FF000000"
android:ems="10"
android:maxLines="1"
android:text="2m"
android:textColor="#android:color/white"
android:typeface="sans" />
</LinearLayout>
</RelativeLayout>

If you want to use the LinearLayout you can achieve what you want by using weightSum attribute in your LinearLayout and layout_weight for your item Name TextView.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/notificationHeader"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffff0000"
android:orientation="horizontal"
android:weightSum="1">
<ImageView
android:id="#+id/notificationIcon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#FF000000"
android:gravity="left"
android:maxHeight="35dp"
android:maxWidth="35dp"
android:padding="1dp"
android:src="#drawable/ic_launcher"/>
<TextView
android:id="#+id/notificationName"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="#A4C739"
android:gravity="center"
android:maxLines="1"
android:padding="5dp"
android:text="Fname Lname"
android:textColor="#android:color/white"
android:textSize="18sp"
android:textStyle="bold"
android:typeface="sans"
android:layout_weight="1"/>
<TextView
android:id="#+id/notificationTimestamp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#FF000000"
android:gravity="right"
android:maxLines="1"
android:text="2m"
android:textColor="#android:color/white"
android:typeface="sans"/>
</LinearLayout>
This will make your item Name to fill all the space until it reaches the last element.
Note: When you use layout_weight you have to set the layout_width to 0dp. And also you should delete ems = 10 from your last element because it makes your notificationTimestamp element to have a larger width and it will push the Name element to the left leaving an empty space.

You can directly use RelativeLayout to achieve what you want. The answer is already here at How to make layout with View fill the remaining space?
If you want to still use the LinearLayout then that is also possible. In this case to achieve what you want, set the layout_weight property of the widgets that you want to just wrap content with to 0 (you should still set them to wrap_content) and then set the layout_weight of the widget that you want to occupy the remaining space to 1.

There is no reason to use RelativeLayout here. What you need to use is layout-weight. You need to set layout_width to 0dp and layout-weight to 1
Here is the updated layout (btw, I removed the parent RelativeLayout as it didn't have any use):
<ImageView
android:id="#+id/notificationIcon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="left"
android:maxHeight="35dp"
android:maxWidth="35dp"
android:background="#FF000000"
android:padding="1dp"
android:src="#drawable/ic_action_place" />
<TextView
android:id="#+id/notificationName"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:gravity="center"
android:padding="5dp"
android:textSize="18sp"
android:textColor="#android:color/white"
android:background="#A4C739"
android:typeface="sans"
android:textStyle="bold"
android:maxLines="1"
android:text="Fname Lname"
/>
<TextView
android:id="#+id/notificationTimestamp"
android:layout_width = "wrap_content"
android:layout_height="wrap_content"
android:gravity="right"
android:background="#FF000000"
android:ems="10"
android:maxLines="1"
android:text="2m"
android:textColor="#android:color/white"
android:typeface="sans" />

android:layout_below not properly working

I have a RelativeLayout with three views. Both TextViews should be to right of the ImageView and the seconds one should be below the first TextView.
Code:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#bdbdbd"
android:paddingBottom="15dp"
android:paddingLeft="5dp"
android:paddingRight="5dp"
android:paddingTop="15dp" >
<ImageView
android:id="#+id/avatar"
android:layout_width="64dp"
android:layout_height="64dp"
android:layout_centerVertical="true"
android:src="#drawable/default_avatar" />
<TextView
android:id="#+id/username"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toRightOf="#id/avatar"
android:text="Chris"
android:textSize="16sp"
android:textStyle="bold" />
<TextView
android:id="#+id/university"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/username"
android:layout_toRightOf="#id/avatar"
android:text="Oxford"
android:textSize="13sp" />
</RelativeLayout>
Result:
After removing android:layout_centerVertical="true" from the first TextView, everything works as expected (except that it's not vertical).
Why is this and how can I make the first TextView vertical centered?

For some reason the RelativeLayout's height param is giving the problem. Try setting it to 94dp (64 of the image + 15 of bottom padding + 15 of top padding). This should solve the problem

#f. de is right. The problem is android:layout_height="wrap_content", as the height of relative layout is determined my it's content setting it's content to vertically center based on it's height wont work. You need to set this to match_parent or to a fixed value.

You also could wrap your data, in your case Name and University inside another RelativeLayout or any other ViewGroup and make it to align center.
Like that
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#bdbdbd"
android:paddingBottom="15dp"
android:paddingLeft="5dp"
android:paddingRight="5dp"
android:paddingTop="15dp">
<ImageView
android:id="#+id/avatar"
android:layout_width="64dp"
android:layout_height="64dp"
android:layout_centerVertical="true"
android:src="#drawable/default_avatar" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginLeft="5dp"
android:layout_marginStart="5dp"
android:layout_toEndOf="#id/avatar"
android:layout_toRightOf="#id/avatar">
<TextView
android:id="#+id/username"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Chris"
android:textSize="16sp"
android:textStyle="bold" />
<TextView
android:id="#+id/university"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/username"
android:text="Oxford"
android:textSize="13sp" />
</RelativeLayout>
</RelativeLayout>
This makes sense in order to group related views (TextViews) and also it produces better result because whole container is aligned center, in your initial example Name view is centered vertically but other view is below it and it makes it to look not as good as it will in case of container where baseline is vetical center of container.

Since trying to place both TextViews center vertical, they overlap. Use the padding attribute for the advantage.
So to align them as required, use this code.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#bdbdbd"
android:paddingBottom="15dp"
android:paddingLeft="5dp"
android:paddingRight="5dp"
android:paddingTop="15dp" >
<ImageView
android:id="#+id/avatar"
android:layout_width="64dp"
android:layout_height="64dp"
android:layout_centerVertical="true"
android:src="#drawable/default_avatar" />
<TextView
android:id="#+id/username"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toRightOf="#id/avatar"
android:text="Chris"
android:paddingBottom="7dp"
android:textSize="16sp"
android:textStyle="bold" />
<TextView
android:id="#+id/university"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/username"
android:layout_toRightOf="#id/avatar"
android:paddingTop="7dp"
android:text="Oxford"
android:textSize="13sp" />
</RelativeLayout>
I wish this solves your problem...

The problem is with your RelativeLayout's height attribute,
if you change it to "match_parent" then it will work the way you wanted.
Or
you can make another Relativelayout in your main RelativeLayout who's height is "match_parent". After doing so you can place everything at any place without any problem.