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Questions tagged [android-constraintlayout]

A new type of layout available in the Android Support repository built on top of a flexible constraint system, marking views positions relative to each other.

ConstraintLayout is new type of layout that you can use in your android app. It is new powerful and flexible Android layout that allows you to express complex UI without nesting multiple layouts.

It is available since Android Studio 2.2, part of the support library and compatible from API level 9 (Android 2.3 GINGERBREAD).

ConstraintLayout aims at improving performance of layouts by reducing layout hierarchies and reduce the complexity of trying to work with RelativeLayout.

ConstraintLayout is compatible with other layout types such as RecyclerView, LinearLayout.

There are currently various types of constraints that you can use:

Relative positioning Margins Centering positioning Circular positioning Visibility behavior Dimension constraints Chains Virtual Helpers objects Optimizer

For more information about ConstraintLayout - Build a Responsive UI with ConstraintLayout

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Differences between ConstraintLayout and RelativeLayout

I am confused about the difference between ConstraintLayout and RelativeLayout. Could someone please tell me the exact differences between them?
b2mob
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How to make ConstraintLayout work with percentage values?

With a Preview 1 of Android Studio 2.2 Google released a new layout in its support library: ConstraintLayout. With ConstraintLayout it is easier to use a Design tool in Android Studio, but I didn't find a way to use relative sizes (percents or…
Yury Fedorov
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How to center the elements in ConstraintLayout

I am using ConstraintLayout in my application to make applications layout. I am trying to a create a screen wheren one EditText and Button should be in center and Button should be below of EditText with a marginTop only 16dp. Here is my layout and…
N Sharma
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Evenly spacing views using ConstraintLayout

A common use for LinearLayout is to evenly space (weight) views, for example: How do you implement evenly spaced views like this using the new ConstraintLayout? ConstraintLayout links for reference: blog post, I/O session video
AdamK
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Android - how to make a scrollable constraintlayout?

I want to make a layout that lets me scroll down using constraint layout, but I don't know how to go about it. Should the ScrollView be the parent of the ConstraintLayout like this?
gtovar
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Wrap_content view inside a ConstraintLayout stretches outside the screen

I am trying to implement a simple chat bubble using a ConstraintLayout. This is what I am trying to achieve: However, wrap_content does not do what I want. It respects the margins, but expands outside of the view bounds. Here is my layout:
Marcin Jedynak
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ConstraintLayout: change constraints programmatically

I need help with ConstraintSet. My goal is to change view's constraints in code, but I cant figure out how to do this right. I have 4 TextViews and one ImageView. I need to set ImageView constraints to one of the TextViews. check_answer4 =…
Big Coach
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How to achieve overlap/negative margin on Constraint Layout?

Is it possible to achieve negative margin on constraint layout to achieve overlap? I am trying to have a image centered on the layout and have a Text view such that it overlaps a by x dp. I tried setting negative margin value but no luck. It would…
bond
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Gradle Sync failed could not find constraint-layout:1.0.0-alpha2

Problem : Error:Could not find com.android.support.constraint:constraint-layout:1.0.0-alpha2. Required by: myapp:app:unspecified Background : Android Studio 2.2 P 1
Cool
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Is it possible to put a ConstraintLayout inside a ScrollView?

So recently, with Android Studio 2.2 there's a new ConstraintLayout that makes designing a lot easier, but unlike RelativeLayout and Linearlayout, I can't use a ScrollView to surround ConstraintLayout. Is this possible? If so, how? i.e.
Seth Painter
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Android ConstraintLayout - Put one view on top of another view

I'm trying to add a ProgressBar on top of a Button (both are inside a ConstraintLayout).
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What is difference between Barrier and Guideline in Constraint Layout?

Recently trying to implement Constraint Layout but I found Barrier and Guideline works same. Both works like divider. Is there any difference between them?
Yeahia2508
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Set width to match constraints in ConstraintLayout

I would like to constrain a View's left and right sides to it's parent view's margins and make it fill the allotted space. However, setting width to either match_parent or wrap_content appears to produce the same result. Is there something…
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Constraint Layout Vertical Align Center

How to vertically align and center objects in constraint layout? It is possible to align vertically or horizontally but I have not found a way to center at the same time beside constraining the views between two gridlines. Vertical Align…
Ray Li
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ConstraintLayout aspect ratio

Consider the following layout file:
darklord
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