Get all child views inside LinearLayout at once

Question

I have a LinearLayout  which contains several child TextViews  How can I get child views of that LinerLayout using a loop

User · Answer

It is easier with Kotlin using for-in loop   for  childView in ll children           childView is a child of ll              Here ll is id of LinearLayout defined in layout XML

User · Answer

Get all views of a view plus its children recursively in Kotlin   private fun View getAllViews    List lt View gt        if  this  is ViewGroup    childCount    0  return listOf this       return children              toList                flatMap   it getAllViews                  plus this as View

User · Answer

Use getChildCount   and getChildAt int index    Example   LinearLayout ll       final int childCount   ll getChildCount    for  int i   0  i  lt  childCount  i            View v   ll getChildAt i            Do something with v

User · Answer

ViewGroup  findViewById android R id content      you can use this in an Activity to get your layout root view  then pass it to findAllEdittexts   method below    Here I am iterating only EdiTexts  if you want all Views you can replace EditText with View   SparseArray lt EditText gt  array   new SparseArray lt EditText gt      private void findAllEdittexts ViewGroup viewGroup         int count   viewGroup getChildCount        for  int i   0  i  lt  count  i              View view   viewGroup getChildAt i           if  view instanceof ViewGroup              findAllEdittexts  ViewGroup  view           else if  view instanceof EditText                EditText edittext    EditText  view              array put editText getId    editText

User · Answer

Get all views from any type of layout  public List lt View gt  getAllViews ViewGroup layout           List lt View gt  views   new ArrayList lt  gt             for int i  0  i lt  layout getChildCount    i                 views add layout getChildAt i                      return views      Get all TextView from any type of layout  public List lt TextView gt  getAllTextViews ViewGroup layout           List lt TextView gt  views   new ArrayList lt  gt             for int i  0  i lt  layout getChildCount    i                 View v  layout getChildAt i               if v instanceof TextView                   views add  TextView v                                   return views

User · Answer

use this       final int childCount   mainL getChildCount        for  int i   0  i  lt  childCount  i                View element   mainL getChildAt i               EditText         if  element instanceof EditText                EditText editText    EditText element              System out println  ELEMENTS EditText getId  gt   editText getId      getTag  gt   element getTag                  getText  gt   editText getText                           CheckBox         if  element instanceof CheckBox                CheckBox checkBox    CheckBox element              System out println  ELEMENTS CheckBox getId  gt   checkBox getId      getTag  gt   checkBox getTag                  getText  gt   checkBox getText     isChecked  gt   checkBox isChecked                           DatePicker         if  element instanceof DatePicker                DatePicker datePicker    DatePicker element              System out println  ELEMENTS DatePicker getId  gt   datePicker getId      getTag  gt   datePicker getTag                  getDayOfMonth  gt   datePicker getDayOfMonth                           Spinner         if  element instanceof Spinner                Spinner spinner    Spinner element              System out println  ELEMENTS Spinner getId  gt   spinner getId      getTag  gt   spinner getTag                  getSelectedItemId  gt   spinner getSelectedItemId                  getSelectedItemPosition  gt   spinner getSelectedItemPosition                  getTag key   gt   spinner getTag spinner getSelectedItemPosition

[android] Get all child views inside LinearLayout at once

Examples related to android

Examples related to android-linearlayout