How can I disable all views inside the layout

Question

For example I have    lt LinearLayout xmlns android  http   schemas android com apk res android      android orientation  vertical      android layout width  fill parent          android layout height  fill parent  gt        lt Button          android id    id backbutton          android text  Back          android layout width  wrap content          android layout height  wrap content    gt       lt LinearLayout         android id    id my layout          android orientation  horizontal          android layout width  fill parent          android layout height  wrap content  gt           lt TextView             android id    id my text view              android text  First Name              android layout width  wrap content              android layout height  wrap content    gt           lt EditText             android id    id my edit view              android width  100px              android layout width  wrap content              android layout height  wrap content    gt            lt View      gt           lt View      gt                       lt View      gt       lt  LinearLayout gt    lt  LinearLayout gt    Is there a way to disable  setEnable false   all elements inside LinearLayout my layout

User · Answer

If you want to disable a set of  or say a particular kind of view Let s say you want to disable a fixed number of buttons with some particular text of or no text  then you can use array of that type and loop through the array elements while disabling the buttons using setEnabled false  property You can do it on a function call like this   public void disable            for int i 0 i lt 9 i                     if bt i  getText   equals        Button Text condition                     bt i  setEnabled false

User · Answer

this one is recursive for ViewGroups  private void disableEnableControls boolean enable  ViewGroup vg       for  int i   0  i  lt  vg getChildCount    i            View child   vg getChildAt i          child setEnabled enable          if  child instanceof ViewGroup              disableEnableControls enable   ViewGroup child

User · Answer

Although not quite the same as disabling views within a layout  it is worth mentioning that you can prevent all children from receiving touches  without having to recurse the layout hierarchy  by overriding the ViewGroup onInterceptTouchEvent MotionEvent  method   public class InterceptTouchEventFrameLayout extends FrameLayout        private boolean interceptTouchEvents                   public void setInterceptTouchEvents boolean interceptTouchEvents            this interceptTouchEvents   interceptTouchEvents              Override     public boolean onInterceptTouchEvent MotionEvent ev            return interceptTouchEvents    super onInterceptTouchEvent ev              Then you can prevent children from receiving touch events   InterceptTouchEventFrameLayout layout    InterceptTouchEventFrameLayout  findViewById R id layout   layout setInterceptTouchEvents true     If you have a click listener set on layout  it will still be triggered

User · Answer

Details   Android studio 3 1 4 Kotlin 1 2 70 checked in minSdkVersion 19   Solution  fun View forEachChildView closure   View  - gt  Unit        closure this      val groupView   this as  ViewGroup    return     val size   groupView childCount - 1     for  i in 0  size            groupView getChildAt i  forEachChildView closure            Usage  val layout   LinearLayout context    layout forEachChildView    it isEnabled   false     val view   View context    view forEachChildView    it isEnabled   false     val fragment   Fragment instantiate context   fragment id   fragment view  forEachChildView    it isEnabled   false

User · Answer

This is a pretty delayed answer But it might help someone  Many answers mentioned above seem to be good  But if your layout xml has nested viewgroups  Then above answers may not provide full result  Hence i have posted my opinion as a snippet  With the code below one can disable all views  Including Nested ViewGroups    NOTE  Try avoiding nested ViewGroups as they are not recommended    private void setEnableView boolean b        LinearLayout layout    LinearLayout findViewById R id parent container       ArrayList lt ViewGroup gt  arrVg   new ArrayList lt  gt         for  int i   0  i  lt  layout getChildCount    i              View child   layout getChildAt i           if  child instanceof ViewGroup                ViewGroup vg    ViewGroup  child              arrVg add vg                     child setEnabled b              for  int j 0 j lt  arrVg size   j             ViewGroup vg   arrVg get j           for  int k   0  k  lt  vg getChildCount    k               vg getChildAt k  setEnabled b

User · Answer

In Kotlin  you can use isDuplicateParentStateEnabled   true before the View is added to the ViewGroup   As documented in the setDuplicateParentStateEnabled method  if the child view has additional states  like checked state for a checkbox   these won t be affected by the parent   The xml analogue is android duplicateParentState  true

User · Answer

The easiest way is creating a  lt View in your xml  with match parent for height and width  make sure the view is above every other views  then when you want to prevent clicks  make it visible add an onClickListener to that view with null as parameter  Example   lt LinearLayout xmlns android  quot http   schemas android com apk res android quot      android orientation  quot vertical quot      android layout width  quot fill parent quot          android layout height  quot fill parent quot  gt        lt Button          android id  quot   id backbutton quot          android text  quot Back quot          android layout width  quot wrap content quot          android layout height  quot wrap content quot    gt       lt LinearLayout         android id  quot   id my layout quot          android orientation  quot horizontal quot          android layout width  quot fill parent quot          android layout height  quot wrap content quot  gt           lt TextView             android id  quot   id my text view quot              android text  quot First Name quot              android layout width  quot wrap content quot              android layout height  quot wrap content quot    gt           lt EditText             android id  quot   id my edit view quot              android width  quot 100px quot              android layout width  quot wrap content quot              android layout height  quot wrap content quot    gt                     lt View             android id  quot   id disable layout view quot              android layout width  quot match parent quot              android layout height  quot match parent quot              android visibility  quot gone quot   gt       lt  LinearLayout gt    lt  LinearLayout gt   Then in your code  val disableLayoutView   rootView find lt View gt  R id disable layout view  disableLayoutView visibility   View VISIBLE disableLayoutView setOnClickListener null

User · Answer

Let s change t  t   s code  private void disableEnableControls boolean enable  ViewGroup vg   for  int i   0  i  lt  vg getChildCount    i        View child   vg getChildAt i      if  child instanceof ViewGroup          disableEnableControls enable   ViewGroup child        else        child setEnabled enable               I think  there is no point in just making viewgroup disable  If you want to do it  there is another way I have used for exactly the same purpose  Create view as a sibling of your groupview     lt View     android visibility  gone      android id    id reservation second screen      android layout width  match parent      android layout height  match parent      android layout gravity  bottom      android background   66ffffff      android clickable  false    gt    and at run-time  make it visible  Note  your groupview s parent layout should be either relative or frame layout  Hope this will help

User · Answer

Set   android descendantFocusability  blocksDescendants    for yor ViewGroup view  All descendants will not take focus

User · Answer

I like to have a control over the root view so I added the includeSelf flag to deepForEach fun ViewGroup deepForEach includeSelf  Boolean   true  function  View    - gt  Unit        if  includeSelf  function       forEach           it apply               function                this as  ViewGroup   apply   deepForEach includeSelf  function

User · Answer

For me RelativeLayout or any other layout at the end of the xml file with width and height set to match parent with attribute focusable and clickable set to true     lt RelativeLayout             android layout width  match parent              android layout height  match parent              android clickable  true              android focusable  true  gt            lt ProgressBar                 android layout width  wrap content                  android layout height  wrap content                  android layout centerInParent  true    gt        lt  RelativeLayout gt

User · Answer

If you re interested in disabling views in a specific ViewGroup then you can use the interesting  perhaps slightly obscure duplicateParentState  A view state is a set of boolean attributes such as pressed  enabled  activated  and others  Just use this on each child you want to sync to parent ViewGroup   android duplicateParentState  true    Note that it duplicates the entire state and not just the enabled state  This may be what you want  Of course  this approach is best if you re loading layout XML

User · Answer

I personally use something like this  vertical tree traversal using recursion   fun ViewGroup deepForEach function  View    - gt  Unit        this forEach   child - gt          child function           if  child is ViewGroup                child deepForEach function                      usage       viewGroup deepForEach   isEnabled   false

User · Answer

Use below recursive function to make your child views visible or gone  First argument is your parent view and second argument decides if you want childs of parent view visible or gone  true   visible false   gone  private void layoutElemanlarininGorunumunuDegistir View view  boolean gorunur mu olsun        ViewGroup view group      try           view group    ViewGroup  view          Sabitler konsolaYazdir TAG   View ViewGroup imis     view getId           catch  ClassCastException e            Sabitler konsolaYazdir TAG   View ViewGroup degilmis     view getId             return             int view eleman sayisi   view group getChildCount        for  int i   0  i  lt  view eleman sayisi  i              View view group eleman   view group getChildAt i           if  gorunur mu olsun                view group eleman setVisibility View VISIBLE             else               view group eleman setVisibility View GONE                     layoutElemanlarininGorunumunuDegistir view group eleman  gorunur mu olsun

User · Answer

I improved the t  t   response to properly disable EditText and RadioButton componentes  Besides  I m sharing a way that I found to change the view visibility and add transparency in the disabled views   private static void disableEnableControls ViewGroup view  boolean enable       for  int i   0  i  lt  view getChildCount    i              View child   view getChildAt i           child setEnabled enable           if  child instanceof ViewGroup               disableEnableControls  ViewGroup child  enable                     else if  child instanceof EditText                EditText editText    EditText  child              editText setEnabled enable               editText setFocusable enable               editText setFocusableInTouchMode enable                     else if  child instanceof RadioButton                RadioButton radioButton    RadioButton  child              radioButton setEnabled enable               radioButton setFocusable enable               radioButton setFocusableInTouchMode enable                      public static void setLayoutEnabled ViewGroup view  boolean enable        disableEnableControls view  enable       view setEnabled enable       view setAlpha enable  1f  0 3f      public static void setLayoutEnabled ViewGroup view  boolean enable  boolean visibility        disableEnableControls view  enable       view setEnabled enable       view setAlpha enable  1f  0 3f       view setVisibility visibility  View VISIBLE  View GONE

User · Answer

If some desperate developer scrolls down here  I have another option to do it  Which also disables scrolling as far as I experimented with it  The idea is to use View element like this one in a RelativeLayout  under all your UI elements    lt View                 android id    id shade                  android layout width  match parent                  android layout height  match parent                  android background   color primaryShadow                  android visibility  gone   gt    So it is set to be  gone  before some condition  And then you set it s visibility to VISIBLE when you want to disable your UI  Also you have to implement OnClickListener for this View  This onClickListener will catch click event and won t pass it to the underlying elements

User · Answer

to disable a view  you must call the method setEnabled with false for argument  ex   Button btn       btn setEnabled false

User · Answer

private void disableLL ViewGroup layout       for  int i   0  i  lt  layout getChildCount    i              View child   layout getChildAt i           child setClickable false           if  child instanceof ViewGroup              disableLL  ViewGroup  child             and call method like this    RelativeLayout rl root    RelativeLayout  findViewById R id rl root   disableLL rl root

User · Answer

My two cents function without recursion      package io chord ui utils  import android view View import android view ViewGroup import androidx core view forEach  class ViewUtils       companion object               fun setViewState view  View  state  Boolean                        var depth   0             val views  MutableMap lt Int  MutableList lt View gt  gt    mutableMapOf               views depth    mutableListOf view               while true                                val currentViews   views depth                  val nextViews   mutableListOf lt View gt                     currentViews   forEach   view - gt                      if view is ViewGroup                                                view forEach   children - gt                              nextViews add children                                                                                     if nextViews size    0                                        break                                    depth                    views depth    nextViews                            views flatMap                   it value               forEach                   it isEnabled   state

User · Answer

Actully what work for me is   getWindow   setFlags WindowManager LayoutParams FLAG NOT TOUCHABLE  WindowManager LayoutParams FLAG NOT TOUCHABLE     and to undo it   getWindow   clearFlags WindowManager LayoutParams FLAG NOT TOUCHABLE

User · Answer

tutu s answer is on the right track  but his recursion is a little awkward   I think this is cleaner   private static void setViewAndChildrenEnabled View view  boolean enabled        view setEnabled enabled       if  view instanceof ViewGroup            ViewGroup viewGroup    ViewGroup  view          for  int i   0  i  lt  viewGroup getChildCount    i                  View child   viewGroup getChildAt i               setViewAndChildrenEnabled child  enabled

User · Answer

Another way is to call setEnabled   on each child  for example if you want to do some extra check on child before disabling    LinearLayout layout    LinearLayout  findViewById R id my layout   for  int i   0  i  lt  layout getChildCount    i          View child   layout getChildAt i       child setEnabled false

User · Answer

You can have whichever children that you want to have the same state as the parents include android duplicateParentState  quot true quot    Then if you disable the parent  whatever children you have that set on will follow suit     This will allow you to dynamically control all states at once from the parent view   lt LinearLayout     android id  quot   id some parent something quot      android orientation  quot vertical quot      android layout width  quot fill parent quot      android layout height  quot fill parent quot  gt        lt Button          android id  quot   id backbutton quot          android text  quot Back quot          android layout width  quot wrap content quot          android layout height  quot wrap content quot           android duplicateParentState  quot true quot   gt       lt LinearLayout         android id  quot   id my layout quot          android orientation  quot horizontal quot          android layout width  quot fill parent quot          android layout height  quot wrap content quot           android duplicateParentState  quot true quot  gt           lt TextView             android id  quot   id my text view quot              android text  quot First Name quot              android layout width  quot wrap content quot              android layout height  quot wrap content quot               android duplicateParentState  quot true quot    gt           lt EditText             android id  quot   id my edit view quot              android width  quot 100px quot              android layout width  quot wrap content quot              android layout height  quot wrap content quot               android duplicateParentState  quot true quot    gt            lt View      gt           lt View      gt                          lt View      gt       lt  LinearLayout gt    lt  LinearLayout gt

[android] How can I disable all views inside the layout?

Examples related to android

Examples related to android-layout