I've a simple ListView with a custom adapter. I've modeled items layout with ConstraintLayout. Everything is working fine, except when a certain TextView contains a long text, making it going on the second row and overlapping the next text. How can I make the item to expand vertically, only when needed?
My list view:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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="org.altervista.realms.biomap.fragments.EditFragment">
<ListView
android:id="#+id/recordsListView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:fillViewport="true"
android:divider="#drawable/list_divider"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
My adapter layout:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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="wrap_content"
android:background="#drawable/record_row"
android:longClickable="true"
>
<Button
android:id="#+id/editRecordDeleteButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="8dp"
android:background="#drawable/button"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toRightOf="parent"
android:minHeight="40dp"
android:minWidth="40dp"
android:text="#string/icon_delete"
android:textAppearance="#style/TextAppearance.AppCompat.Medium"
/>
<TextView
android:id="#+id/editRecordDate"
android:text="21/06/2015"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
android:layout_marginLeft="8dp"
android:layout_marginTop="4dp"
/>
<TextView
android:id="#+id/editRecordSpecies"
android:text="Russola Magnificens Russola Magnificens"
android:textColor="#000000"
android:textAppearance="#style/TextAppearance.AppCompat.Subhead"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="#+id/editRecordDate"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toLeftOf="#+id/editRecordAbundance"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginTop="4dp"
/>
<TextView
android:id="#+id/editRecordLocHab"
android:text="Faggeta acidofila a Luzula Croce di Forcella Piccola"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
android:layout_marginLeft="8dp"
android:layout_marginBottom="4dp"
app:layout_constraintRight_toLeftOf="#+id/editRecordDeleteButton"
android:layout_marginRight="8dp"
android:layout_marginTop="4dp"
app:layout_constraintTop_toBottomOf="#+id/editRecordSpecies"
/>
<TextView
android:id="#+id/editRecordTime"
android:text="14:44"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintRight_toLeftOf="#+id/editRecordDeleteButton"
android:layout_marginRight="8dp"
android:layout_marginTop="4dp"
/>
<TextView
android:id="#+id/editRecordAbundance"
android:text="2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="#+id/editRecordTime"
app:layout_constraintRight_toLeftOf="#+id/editRecordDeleteButton"
android:layout_marginRight="8dp"
android:layout_marginTop="4dp"
android:layout_marginBottom="4dp"
/>
</android.support.constraint.ConstraintLayout>
How it looks now:
I'd like to have 3rd item (and 3rd item only) to expand vertically.
Thank you!
Edit:
I've noticed that this problem occurs only if the text is slightly longer than the line. Using a longer text cause the TextView to expand, as expected.
It seems to me that it's using the parent width to decide when to expand the layout, whereas it's using the textview width to decide when to go on a new line.
Please notice that the XML for the images below is identical. I've only changed the text string.
removing app:layout_constraintBottom_toBottomOf="parent" property from you editRecordLocHab textView solved the issue in my replicated code.
Related
I have two TextViews, one above the other. I would like the vertical middle of the two TextViews to be at the same position as the vertical middle of the ImageView. (This is so, regardless of the amount of text that may go into either TextView, everything will always look neat, vertically.)
I created what I need perfectly using two LinearLayouts (as the space above the title is the same as the space beneath the description):
But Android Studio was unable to covert it to ConstraintLayout successfully, as it just dumped the TextViews at the bottom of the layout. I've played with a lot of attributes, but could not quite arrive at the desired layout.
My question is similar to this one, except that I am trying to center_vertical align a pair of views rather than a single one - which means I have no view edge to align to the centre of the ImageView/container.
Is it possible to achieve what I'm after with ConstraintLayout? (I expect I may be able to do it with a single RelativeLayout, but I would like to use the layout_constraintDimensionRatio attribute on my ImageView which presumably leave me needing to use ConstraintLayout.)
In case it helps, here's the code for my aforementioned LinearLayout:
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:id="#+id/imageView"
android:layout_width="#dimen/resources_list_image_size"
android:layout_height="#dimen/resources_list_image_size"
android:layout_marginEnd="#dimen/activity_horizontal_margin"
android:layout_marginRight="#dimen/activity_horizontal_margin"
android:layout_gravity="center_vertical"
android:contentDescription="#string/resource_image"
android:scaleType="centerCrop"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:orientation="vertical">
<TextView
android:id="#+id/textViewTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="#style/MyTextAppearanceMedium"
tools:text="Title" />
<TextView
android:id="#+id/textViewDescription"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="#style/MyTextAppearanceSmall"
tools:text="Description" />
</LinearLayout>
</LinearLayout>
Update: Solution
Thanks to Ben P's answer, this is my final code:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
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="wrap_content">
<!-- Add guideline to align imageView to. -->
<androidx.constraintlayout.widget.Guideline
android:id="#+id/guideline"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.3" />
<ImageView
android:id="#+id/imageView"
android:layout_width="0dp"
android:layout_height="0dp"
android:contentDescription="#string/resource_image"
android:scaleType="centerCrop"
app:layout_constraintDimensionRatio="H,1:1"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toStartOf="#id/guideline"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"/>
<TextView
android:id="#+id/textViewTitle"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="#dimen/activity_horizontal_margin"
android:layout_marginLeft="#dimen/activity_horizontal_margin"
app:layout_constraintBottom_toTopOf="#id/textViewDescription"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#id/imageView"
app:layout_constraintTop_toTopOf="parent"
android:textAppearance="#style/MyTextAppearanceMedium"
app:fontFamily="#font/roboto_slab_regular"
app:layout_constraintVertical_chainStyle="packed"
tools:text="#string/enter_title_colon" />
<TextView
android:id="#+id/textViewDescription"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="#dimen/activity_horizontal_margin"
android:layout_marginLeft="#dimen/activity_horizontal_margin"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#id/imageView"
app:layout_constraintTop_toBottomOf="#id/textViewTitle"
app:fontFamily="#font/roboto_slab_light"
android:textAppearance="#style/MyTextAppearanceSmall"
tools:text="Description" />
</androidx.constraintlayout.widget.ConstraintLayout>
It sounds like you could solve this problem by using a packed chain anchored to the top and bottom of the ImageView. You'll also need to use horizontal bias and a constrained width in order to get wrapping to work correctly.
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
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">
<View
android:id="#+id/anchor"
android:layout_width="80dp"
android:layout_height="80dp"
android:layout_margin="64dp"
android:background="#caf"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<TextView
android:id="#+id/one"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintVertical_chainStyle="packed"
app:layout_constraintHorizontal_bias="0"
app:layout_constrainedWidth="true"
app:layout_constraintTop_toTopOf="#id/anchor"
app:layout_constraintStart_toEndOf="#id/anchor"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintBottom_toTopOf="#id/two"/>
<TextView
android:id="#+id/two"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintHorizontal_bias="0"
app:layout_constrainedWidth="true"
app:layout_constraintTop_toBottomOf="#id/one"
app:layout_constraintStart_toEndOf="#id/anchor"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintBottom_toBottomOf="#id/anchor"/>
</androidx.constraintlayout.widget.ConstraintLayout>
The important attributes here are:
app:layout_constraintVertical_chainStyle="packed" on the first view, which causes the two textviews to stack right on top of each other
app:layout_constraintHorizontal_bias="0" on both views, which means that when the text is not long enough to reach the edge of the screen it will stick to the edge of the anchor view
app:layout_constrainedWidth="true" on both views, which prevents the textview from ever being wider than its constraints, and so the text wraps to a new line
If you want to use ConstraintLayout you could use something like this:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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">
<ImageView
android:id="#+id/imageView"
android:layout_width="200dp"
android:layout_height="200dp"
android:contentDescription="description"
android:scaleType="centerCrop"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<LinearLayout
android:id="#+id/linearLayout"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="#+id/imageView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/imageView"
app:layout_constraintTop_toTopOf="#+id/imageView">
<TextView
android:id="#+id/textViewTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:text="Title" />
<TextView
android:id="#+id/textViewDescription"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:text="Description" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
You can use this layout:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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">
<TextView
android:id="#+id/textView2"
android:layout_width="0dp"
android:layout_height="0dp"
android:background="#color/colorAccent"
android:text="I am 5% of the screen height"
app:layout_constraintBottom_toTopOf="#+id/textView3"
app:layout_constraintEnd_toEndOf="#+id/textView3"
app:layout_constraintHeight_percent="0.05"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="#+id/textView3"
app:layout_constraintTop_toTopOf="#+id/imageView2" />
<TextView
android:id="#+id/textView3"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintHeight_percent="0.15"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:background="#color/colorPrimary"
android:text="I am 15% of the screen height (And the image is 20% screen size in height) "
app:layout_constraintBottom_toBottomOf="#+id/imageView2"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/imageView2"
app:layout_constraintTop_toBottomOf="#+id/textView2" />
<ImageView
android:id="#+id/imageView2"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintHeight_percent="0.20"
app:layout_constraintDimensionRatio="1:1"
android:scaleType="fitXY"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/rose" />
</android.support.constraint.ConstraintLayout>
It will look like this:
One important thing about this layout:
You can control your aspect ratio (for the image) with app:layout_constraintDimensionRatio="x:y" and by passing "1:1" make it square
And by the way - I am using support library for no reason on this example, you can use androidx
Description
I am using a recycler view that has more items inside than screen´s height, so to see them we should scroll down. The problem is that I can only scroll some dps down (like 10 or 20 dps).
What do I need?
I need to scroll to it´s bottom in order to see all recycler´s views.
My design is private so I am going to show you a graphic:
The blue box is my recycler view. It has ten views loaded, but we can only see two and a half. I can slide so that I can see "Daddy Yankee" full name, but not more than that.
My fragment XML code (in which I have my recycler)
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
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:contentDescription="#string/ayuda">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/constraint_bar"
android:layout_width="match_parent"
android:layout_height="50dp"
android:elevation="2dp"
android:contentDescription="#string/ayuda"
android:paddingTop="5dp"
android:paddingBottom="5dp"
android:background="#8d6e63"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<ImageButton
android:id="#+id/imgbt_back"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:contentDescription="#string/ayuda"
android:background="?selectableItemBackgroundBorderless"
android:src="#drawable/icon_back_negro"
android:tint="#ffffff"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/txt_lobby"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="15dp"
android:contentDescription="#string/ayuda"
android:text="Lobby"
android:textColor="#ffffff"
android:textSize="15.5sp"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="#+id/imgbt_back"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
<TextView
android:id="#+id/txt_names"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_marginTop="20dp"
android:text="(10) names"
android:fontFamily="#font/arimo"
android:textColor="#000000"
android:textSize="16sp"
app:layout_constraintTop_toBottomOf="#id/constraint_bar"
app:layout_constraintLeft_toLeftOf="parent"
android:contentDescription="#string/ayuda"/>
<View
android:id="#+id/view_barra0"
android:layout_width="match_parent"
android:layout_height="1.5dp"
android:layout_marginTop="5dp"
android:background="#eeeeee"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toBottomOf="#id/txt_names"
android:contentDescription="#string/ayuda"/>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recycler_names"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="#id/view_barra0"
app:layout_constraintLeft_toLeftOf="parent"
android:contentDescription="#string/ayuda"/>
</androidx.constraintlayout.widget.ConstraintLayout>
What can I do to slide my recycler to the bottom to be able to see all the other views?
Add this constraint on your id/recycler_names:
app:layout_constraintBottom_toBottomOf="parent"
and then set layout_height to 0dp (match constraint).
I am attempting to create a layout where various pieces of data are separated by a line (View), but the design requires an equal top and bottom spacing from the line. I am trying to use margins to accomplish this, but I am not getting the results I expected. Based on the official documentation, as long as the constraints are set for the margin direction, they should be respected. For some reason the top margin gives us the correct spacing, however the bottom margin does not give any spacing at all. I have created a sample containing only the pertinent layout axml to reproduce, along with a large enough margin to visualize the issue:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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:padding="20dp">
<TextView android:text="NAME"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:id="#+id/account_name_label"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
/>
<TextView android:text="Your Name"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:id="#+id/account_name"
app:layout_constraintTop_toBottomOf="#+id/account_name_label"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
/>
<View
android:id="#+id/line1"
app:layout_constraintTop_toBottomOf="#+id/account_name"
app:layout_constraintBottom_toTopOf="#+id/account_joined_label"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
android:layout_width="0dp"
android:layout_height="1dp"
android:background="#000000"
android:layout_marginTop="100dp"
android:layout_marginBottom="100dp"
/>
<TextView android:text="JOINED"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:id="#+id/account_joined_label"
app:layout_constraintTop_toBottomOf="#+id/line1"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
/>
<TextView android:text="January 1, 2019"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:id="#+id/account_joined"
app:layout_constraintTop_toBottomOf="#+id/account_joined_label"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
/>
</android.support.constraint.ConstraintLayout>
The above results in the following, visually:
Now, I can add the android:layout_marginTop="100dp" to the first TextView after the line View to "fix" this, however I want to reuse the styles for the line View, without having to worry about remembering to add a top margin to whatever happens to be the first View after the line View. What am I missing?
Update: Here is what the layout SHOULD look like:
You need to connect the bottom of account_joined to the bottom of parent and the bottom of account_joined_label to the top of account_joined. So you can try this one:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
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:padding="20dp">
<TextView android:text="NAME"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:id="#+id/account_name_label"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintBottom_toBottomOf="parent"/>
<TextView android:text="Your Name"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:id="#+id/account_name"
app:layout_constraintTop_toBottomOf="#+id/account_name_label"
app:layout_constraintRight_toRightOf="parent" />
<View
android:id="#+id/line1"
app:layout_constraintTop_toBottomOf="#+id/account_name"
app:layout_constraintBottom_toTopOf="#+id/account_joined_label"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
android:layout_width="0dp"
android:layout_height="1dp"
android:background="#000000"
android:layout_marginTop="100dp"
android:layout_marginBottom="100dp"/>
<TextView android:text="JOINED"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:id="#+id/account_joined_label"
app:layout_constraintTop_toBottomOf="#+id/line1"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintBottom_toTopOf="#+id/account_joined" />
<TextView android:text="January 1, 2019"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:id="#+id/account_joined"
app:layout_constraintTop_toBottomOf="#+id/account_joined_label"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintBottom_toBottomOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
Some info before the code:
When you use something like android:layout_marginTop="100dp" you are making your layout to a non-responsive one.
Why: In android, different phones got dofferent screen size and what may look good on 1 device with 100dp margin may not look good on another device.
So if possible try not to use large values as fixed sizes, the next part of the question will explain how to handle this.
Here is where the fun begins:
You can simply use Guidelines to fix your margin problems - it will be responsive to all screen sizes and won't have hardcoded value like 120dp.
All you have to do is to constraint "NAME" to the top constraint and "JOINED" to the bottom constraint like this:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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">
<TextView
android:id="#+id/account_name_label"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:text="NAME"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="#+id/guideline9" />
<TextView
android:id="#+id/account_name"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:text="Your Name"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/account_name_label" />
<View
android:id="#+id/line1"
android:layout_width="0dp"
android:layout_height="1dp"
android:layout_marginStart="8dp"
android:background="#000000"
app:layout_constraintBottom_toTopOf="#+id/account_joined_label"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/account_name" />
<TextView
android:id="#+id/account_joined_label"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:text="JOINED"
app:layout_constraintBottom_toTopOf="#+id/guideline8"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="#+id/account_joined"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:text="January 1, 2019"
app:layout_constraintBottom_toTopOf="#+id/account_joined_label"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<android.support.constraint.Guideline
android:id="#+id/guideline8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.85" />
<android.support.constraint.Guideline
android:id="#+id/guideline9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.15" />
</android.support.constraint.ConstraintLayout>
And it will look like this:
Now don't be scared, your layout looks ok - it's just my lame lame skills in editing photos (check this on your device).
The important thing is that you can change the look of your layout by changing the value of this line in your guidelines:
app:layout_constraintGuide_percent="0.15"
If anything was not understandable feel free to ask.
I want to create a UI like: for which I am using a recycler view under constraint layout.
But the issue is when I set layout_height="match_constraint" of recyclerView then it does not show any list and when I set to layout_height="wrap_content" then the list goes out the bound and is not scrollable and when I set it to a fixed length then it does not fill the remaining screen vertically.
and it is shown like this:
Here is how it shows nothing when layout_height = "match_constraint":
Here is my xml code:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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=".searchResultListFragment">
<ImageView
android:id="#+id/thumbnail_img"
android:layout_width="0dp"
android:layout_height="150dp"
android:scaleType="fitXY"
android:src="#drawable/shopping_mart_transparent"
app:layout_constraintBottom_toTopOf="#id/search_result_recycler_view"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/tv_search_result_msg"
style="#style/search_result_msg_style"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="16dp"
android:layout_marginLeft="16dp"
android:layout_marginStart="16dp"
android:text="Attraction Points in Naran"
app:layout_constraintBottom_toBottomOf="#id/thumbnail_img"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="#+id/tv_search_result_count"
style="#style/search_result_count_style"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="22dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:text="3 Results"
app:layout_constraintBottom_toBottomOf="#id/thumbnail_img"
app:layout_constraintEnd_toEndOf="parent" />
<android.support.v7.widget.RecyclerView
android:id="#+id/search_result_recycler_view"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="8dp"
android:layout_marginLeft="16dp"
android:layout_marginStart="16dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/thumbnail_img" />
</android.support.constraint.ConstraintLayout>
It is because at the very last line of your RecyclerView xml your added a wrong character
Change :
app:layout_constraintTop_toBottomOf="#+id/thumbnail_img"
to :
app:layout_constraintTop_toBottomOf="#id/thumbnail_img"
Same for other Views (ImageView and 2 TextViews), adding a + means that you want to add a reference not to link to that reference.
Plus you don't need this line in the ImageView :
app:layout_constraintBottom_toTopOf="#+id/search_result_recycler_view"
As by searching a lot I could not find any solution to this issue. So I came up with my own solution by replacing constraint layout with RelativeLayout. Although this is the ideal solution but this is how I resolved the Issue I was facing.
Here is the xml code:
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".searchResultListFragment"
android:orientation="vertical">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="150dp"
android:layout_weight="0">
<ImageView
android:id="#+id/thumbnail_img"
android:layout_width="0dp"
android:layout_height="150dp"
android:scaleType="fitXY"
android:src="#drawable/shopping_mart_transparent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/tv_search_result_msg"
style="#style/search_result_msg_style"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="16dp"
android:layout_marginLeft="16dp"
android:layout_marginStart="16dp"
android:text="Attraction Points in Naran"
app:layout_constraintBottom_toBottomOf="#id/thumbnail_img"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="#+id/tv_search_result_count"
style="#style/search_result_count_style"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="22dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:text="3 Results"
app:layout_constraintBottom_toBottomOf="#id/thumbnail_img"
app:layout_constraintEnd_toEndOf="parent" />
</android.support.constraint.ConstraintLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/search_result_recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
I have a RecyclerView with CardView as its items.
Below is the layout for my main activity.
<android.support.constraint.ConstraintLayout
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="com.example.personal.newz.ui.MainActivity">
<android.support.v7.widget.RecyclerView
android:id="#+id/rv"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintLeft_toLeftOf="parent"></android.support.v7.widget.RecyclerView>
</android.support.constraint.ConstraintLayout>
And below is the layout for my recycler view items
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_margin="16dp"
card_view:cardCornerRadius="4dp"
>
<android.support.constraint.ConstraintLayout xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.constraint.Guideline
android:id="#+id/vertical_guideline"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.6" />
<TextView
android:id="#+id/date_tv"
android:layout_width="wrap_content"
android:layout_height="16dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="16dp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:text="2 hours ago" />
<TextView
android:id="#+id/source_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:textStyle="bold"
app:layout_constraintLeft_toRightOf="#id/date_tv"
app:layout_constraintTop_toTopOf="#id/date_tv"
tools:text="BBC News" />
<TextView
android:id="#+id/headline_tv"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginTop="32dp"
android:maxLines="2"
android:textStyle="bold"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toLeftOf="#id/vertical_guideline"
app:layout_constraintTop_toBottomOf="#id/date_tv"
tools:text="Apple admits slowing down older iphones" />
<TextView
android:id="#+id/description_tv"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:maxLines="4"
app:layout_constraintLeft_toLeftOf="#id/date_tv"
app:layout_constraintRight_toLeftOf="#id/vertical_guideline"
app:layout_constraintTop_toBottomOf="#id/headline_tv"
tools:text="Customers have long suspected iPhones slow down over time. Now, Apple has confirmed some models do." />
<ImageView
android:id="#+id/article_image"
android:layout_width="100dp"
android:layout_height="100dp"
android:scaleType="fitXY"
app:layout_constraintHorizontal_bias=".7"
app:layout_constraintLeft_toRightOf="#id/vertical_guideline"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#id/source_tv"
tools:src="#drawable/placeholder" />
<ImageView
android:id="#+id/bookmark_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:src="#drawable/bookmark"
app:layout_constraintEnd_toStartOf="#+id/share_image"
app:layout_constraintStart_toEndOf="#+id/vertical_guideline"
app:layout_constraintTop_toBottomOf="#id/article_image"
app:layout_constraintHorizontal_chainStyle="packed"/>
<ImageView
android:id="#+id/share_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/share_icon"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/bookmark_image"
app:layout_constraintTop_toBottomOf="#id/article_image" />
</android.support.constraint.ConstraintLayout>
</android.support.v7.widget.CardView>
Now when I first start my app the individual cardview's width don't match to the parent and kind of behave like their width is wrap content. After a few seconds the width of all the cardviews adjusts itself to match the parent.
ConstraintLayout does not actually support match_parent for its children. If you try to use match_parent, sometimes it will work, and sometimes it will not. Android Studio is also sort of weird about match_parent, and sometimes will allow it and sometimes will automatically replace it with a hardcoded value that matches the last emulator you ran. Regardless, do not use match_parent for children of a ConstraintLayout.
Instead of android:layout_width="match_parent", use this:
android:layout_width="0dp"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
Instead of android:layout_height="match_parent", use this:
android:layout_height="0dp"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
When I make these changes to your RecyclerView tag, the problem goes away.