This view is not constrained vertically At runtime it will jump to the left unless you add a vertical constraint

Question

New Layout editor in Android Studio 2 2 keeps showing this error on views like EditText and Buttons  kindly help Also  any links that help in onboarding with the new constraint layout would be appreciated   code    lt  xml version  1 0  encoding  utf-8   gt   lt android support constraint ConstraintLayout     android id    id activity main      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 set email MainActivity      tools layout editor absoluteX  0dp      tools layout editor absoluteY  81dp  gt        lt TextView         android text  To           android layout width  wrap content          android layout height  wrap content          tools layout editor absoluteX  7dp          tools layout editor absoluteY  4dp          android id    id textTo   gt        lt EditText         android layout width  fill parent          android layout height  wrap content          android inputType  textEmailAddress          android ems  10          tools layout editor absoluteX  0dp          tools layout editor absoluteY  24dp          android id    id editTo          android textAppearance   android style TextAppearance DeviceDefault Medium   gt        lt EditText         android layout width  384dp          android layout height  42dp          android inputType  textPersonName          android ems  10          tools layout editor absoluteX  0dp          tools layout editor absoluteY  94dp          android id    id editSubject          android textAppearance   android style TextAppearance DeviceDefault Medium   gt        lt EditText         android layout width  384dp          android layout height  273dp          android inputType  textPersonName          android ems  10          tools layout editor absoluteX  0dp          tools layout editor absoluteY  179dp          android id    id editMessage          app layout constraintLeft toLeftOf    id activity main          tools layout constraintLeft creator  50          android textAppearance   android style TextAppearance DeviceDefault Medium   gt        lt Button         android text  Send          android layout width  wrap content          android layout height  wrap content          tools layout editor absoluteX  140dp          tools layout editor absoluteY  454dp          android id    id btnSend          app layout constraintLeft toLeftOf    id editMessage          tools layout constraintLeft creator  0          app layout constraintRight toRightOf    id activity main          android layout marginEnd  16dp          tools layout constraintRight creator  0          android textAppearance   android style TextAppearance DeviceDefault Medium   gt     lt  android support constraint ConstraintLayout gt

User · Answer

Follow these steps  Right click on designing part  gt  Constraint Layout  gt  Infer Constraints

User · Answer

Constraint layout aims at reducing layout hierarchies and improves performance of layouts technically  you don t have to make changes for different screen sizes No overlapping  works like charm on a mobile as well as a tab with the same constraints  Here s how you get rid of the above error when you re using the new layout editor     Click on the small circle and drag it to the left until the circle turns green to add a left constraint give a number  say x dp  Repeat it with the other sides and leave the bottom constraint blank if you have another view below it     Edit  According to the developers site  Instead of adding constraints to every view as you place them in the layout  you can move each view into the positions you desire  and then click Infer Constraints to automatically create constraints  more here

User · Answer

You have to change androidx constraintlayout widget ConstraintLayout to RelativeLayout

User · Answer

Simply switch to the Design View  and locate the concerned widget  Grab the one of the dots on the boundary of the widget and join it to an appropriate edge of the screen  or to a dot on some other widget     For instance  if the widget is a toolbar  just grab the top-most dot and join it to the top-most edge of the phone screen as shown in the image

User · Answer

app layout constraintEnd toEndOf  quot parent quot  app layout constraintStart toStartOf  quot parent quot  app layout constraintTop toTopOf  quot parent quot   This help me a lot

User · Answer

Just copy this code to all components that you will drag   app layout constraintBottom toBottomOf  parent  app layout constraintLeft toLeftOf  parent  app layout constraintRight toRightOf  parent    example    lt TextView     app layout constraintBottom toBottomOf  parent      app layout constraintLeft toLeftOf  parent      app layout constraintRight toRightOf  parent      android text  To       android layout width  wrap content      android layout height  wrap content      tools layout editor absoluteX  7dp      tools layout editor absoluteY  4dp      android id    id textTo   gt

User · Answer

Go to the Design  right click on your Widget   Constraint Layout    Infer Constraints  You can observe that some code has been automatically added to your Text

User · Answer

From Android Studio v3 and up  Infer Constraint was removed from the dropdown   Use the magic wand icon in the toolbar menu above the design preview  there is the  Infer Constraints  button  Click on this button  this will automatically add some lines in the text field and the red line will be removed

User · Answer

You need to drag the EditText from the edge of the layout and not just the other widget  You can also add constraints by just dragging the constraint point that surrounds the widget to the edge of the screen to add constraints as specified   The modified code will look something similar to this       app layout constraintLeft toLeftOf    id router text      app layout constraintTop toTopOf    id activity main      android layout marginTop  320dp      app layout constraintBottom toBottomOf    id activity main      android layout marginBottom  16dp      app layout constraintVertical bias  0 29

User · Answer

Go to the XML layout Text where the widget  button or other View  indicates error  focus the cursor there and press alt enter and select missing constraints attributes

User · Answer

for example I have this    lt android support constraint ConstraintLayout xmlns android  http   schemas android com apk res android    use RelativeLayout layout like this   lt RelativeLayout xmlns android  http   schemas android com apk res android

User · Answer

If Inferring the Constraints still gives you the error  just use this code   app layout constraintBottom toBottomOf  parent

[android-layout] This view is not constrained vertically. At runtime it will jump to the left unless you add a vertical constraint

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