Android Lint contentDescription warning

Question

I am getting warning as   Accessibility  Missing contentDescription attribute on image  for imageview  while using android lint  What does that mean

User · Answer

ContentDescription needed for the Android accessibility  Particularly for the screen reader feature  If you don t support Android accessibility you can ignore it  with setup Lint   So just create lint xml    lt  xml version  1 0  encoding  UTF-8   gt   lt lint gt        lt issue id  ContentDescription  severity  ignore    gt    lt  lint gt    And put it to the app folder

User · Answer

Since I need the ImageView to add an icon just for aesthetics I ve added tools ignore  ContentDescription  within each ImageView I had in my xml file   I m no longer getting any error messages

User · Answer

Resolved this warning by setting attribute android contentDescription for my ImageView  android contentDescription   string desc    Android Lint support in ADT 16 throws this warning to ensure that image widgets provide a contentDescription   This defines text that briefly describes content of the view  This property is used primarily for accessibility  Since some views do not have textual representation this attribute can be used for providing such    Non-textual widgets like ImageViews and ImageButtons should use the contentDescription attribute to specify a textual description of the widget such that screen readers and other accessibility tools can adequately describe the user interface

User · Answer

Disabling Lint warnings will easily get you into trouble later on  You re better off just specifying contentDescription for all of your ImageViews  If you don t need a description  then just use   android contentDescription   null

User · Answer

Go to Gradle file  module app   add below code block  android                lintOptions           disable  ContentDescription                    No more warning  happy coding

User · Answer

Since it is only a warning you can suppress it  Go to your XML s Graphical Layout and do this    Click on the right top corner red button   Select  Disable Issue Type   for example

User · Answer

If you want to suppress this warning in elegant way  because you are sure that accessibility is not needed for this particular ImageView   you can use special attribute   android importantForAccessibility  no

User · Answer

Non textual widgets need a content description in some ways to describe textually the image so that screens readers to be able to describe the user interface  You can ignore the property xmlns tools  http   schemas android com tools  tools ignore  contentDescription  or define the property android contentDescription  your description

User · Answer

For graphical elements that are purely decorative  set their respective android contentDescription XML attributes to   null     If your app only supports devices running Android 4 1  API level 16  or higher  you can instead set these elements  android importantForAccessibility XML attributes to  no

User · Answer

Another option is to suppress the warning individually   xmlns tools  http   schemas android com tools    usually inserted automatically  tools ignore  contentDescription    Example     lt RelativeLayout xmlns android  http   schemas android com apk res android      xmlns tools  http   schemas android com tools      android layout width  match parent      android layout height  match parent       tools ignore  contentDescription   gt           lt ImageView             android layout width  50dp              android layout height  match parent              android adjustViewBounds  true              android padding  5dp              android src   drawable icon    gt

User · Answer

I recommend you to add the contentDescription   android contentDescription   string contentDescriptionXxxx    but  let s be realistic  Most people don t maintain literal for accessibility  Still  with little effort  you can implement something to help people with disability    lt string name  contentDescriptionUseless  gt deco lt  string gt   lt string name  contentDescriptionAction  gt button de action lt  string gt   lt string name  contentDescriptionContent  gt image with data lt  string gt   lt string name  contentDescriptionUserContent  gt image from an other user lt  string gt       The most important thing the blind user will need to know is  Where is the button that I need to click to continue   Use contentDescriptionAction for anything clickable   use contentDescriptionContent for image with information  graph  textAsImage        use contentDescriptionUserContent for all user provided content   use contentDescriptionUseless for all the rest

[android] Android Lint contentDescription warning

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