How to read listview items in android


How to read listview items in android

How to read listview items in android. Nov 10, 2013 · 1. Sep 2, 2017 · Now you can get your selected item like this: list. Mar 26, 2017 · android:textColorHighlight="#FEC403". This is optional. You may try the following to retrieve all items from the parent containing the views and then set the background color of all the items. sqlite. xml (item layout): Jun 20, 2012 · Use a custom Adapter (ArrayAdapter in my case), to implement the visual feedback that this item is draggable, which is an ImageView near the TextView. Mar 26, 2018 · 1. 0' // Corresponds to release 0. Fragment OnCreate Feb 22, 2012 · To do this, your own view MUST contain a ListView object with the id "@android:id/list" (or list if it's in code) You ll either have to change the listview' s id to that default or you need to use setContentView () Update: Code sample. Sort your array and bind it in your adapter. addAll (List)" here an example: List<String> myList = new ArrayList<String>(); My pull to refresh list view has a header view to show the updating status while pull down. Apr 29, 2013 · Here is the code I use in my MainActivity: public class MainActivity extends Activity {. When I will scroll up, the displayed items i want to mark as read. email. May 25, 2015 · Firstly, we don't provide codes on stackoverflow, you should write your own (it takes time, but it's worth it). Mar 23, 2016 · before i posted this thread , I've googled ( how to style listview items ) i cannot find a good example to showing how to style listview item ( normal , touch , long click etc ) background colors also i want to do like this VK listview with border radius and box shadow , please i really need this help also other people searching for this is Aug 17, 2010 · Using duration gives a better user experience. */. simple_list_item_1 is the default list item layout supplied by Android, and you can use this stock layout for non-complex things. Every time you use findViewById() tell it to look in this row only: All together: String contactId = ((TextView) view. The items on the listview are conditionally added. view. listviewid); LayoutParams list = (LayoutParams) mListView. LayoutParams; ListView mListView = (ListView) findViewById(R. os. getItemAtPosition(position) as TopicDTO. private ListView listView1; @Override. list_row, rowItems); listView. after for ex. setLayoutParams(new LinearLayout. After that if the user selects any other item then the Mar 11, 2013 · Notice the difference between padding (the green on the left) and margin (no green on the right). xml: <LinearLayout android:layout_height="wrap_content" android:layout_ . The ListView knows that there will be 2 types of View from getViewTypeCount. An easy way to instantiate an adapter and override isEnabled can be done in the following way: SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, android. planes; import java. answered Mar 11, 2013 at 17:12. setChoiceMode(AbsListView. setAdapter(new ArrayAdapter<String>(this, android. LayoutChange += (s, layoutChangeArgs) => {. , tablets) Wear OS. getText(). // Get the selected item text from ListView. convertView = mInflater. You will also need to have custom layouts. Cross-device SDK. We demonstrated the application in Kotlin, so make sure you select Kotlin as the primary language while creating a New Project. CHOICE_MODE_SINGLE); Note that once you do this, android will setSelection() for you, so you don't need to keep track of it yourself. Step 2: Working with the activity_main. searchList); adapter = new CustomListViewAdapter(this, R. R. But when the listview loses focus, the text color of the last item is stay on selected state. One way of doing this is by setting the tab index of the control to 0 (the lowest value indicates the control Set this adapter to your listview. main); ViedoStream viedoStream_data[] = new ViedoStream[] I have a ListView, that like any other ListView, show one item each row. gradle dependencies for your app: compile 'asia. // This is your listview's selected item. android:layout_height="wrap_content". Note: I want to replace Item 1 with a device 1's name, sub item 1 with device 1's MAC address, and so on. In order to disable list items on list creation you have to subclass from ArrayAdapter. app. 5,565 5 5 gold badges 43 43 silver badges 70 70 bronze badges. However I would like to use the getSelectedItem () method of the ListView (AdapterView) class. getChildAt(position); You get all list item from list adapter through iteration as below. Please have a look at Adapter#getView . For example: list_selector_read. Or in Activity class. Jun 21, 2013 · Here Is Your Edited Working Code . AddedItems[0]); Or if you don't need the selection functionality and what to use the ItemClick="MyClick" you need to set IsItemClickEnabled to true: Apr 4, 2012 · Code: mListView. Navigate to app > res > layout > activity_main. Each Map entry will have a Key (First line) and a Value (Second line) of each one of the ListView Items. setOnClickListener(myClickListener); and declare the click listener in your ListActivity as follows, I have a navigation drawer with some list item . This is fundamentally flawed -- ListView doesn't inflate a different layout view hierarchy for each row, it keeps only enough needed to fill the screen. I think it took total count as list items + header views (ie, 5 items + 1 header view). CHOICE_MODE_SINGLE); 2) Sets the checked state of the specified position. Jan 1, 2012 · I am also aware that Android recycles views which means that I can only work with the visible views in the ListView. This MUST be done dynamically because Oct 11, 2012 · There is just a list view action (no details on click). listItems is a List which holds the data shown in the ListView. if yes change view style. To create a new project in Android Studio please refer to How to Create/Start a New Project in Android Studio. I have been able to access the listview, and make sure the proper items are added in the proper condtions. Nov 18, 2013 · 0. Mar 22, 2012 · this will actually create a new view just so performItemClick will work, yes it will work, but this will not be the same view as intended, getView in adapter is misleading, it actually creates a view, and listView is using it in order to populate the views and recycle them Dec 5, 2014 · 3. You can use the SelectionChanged event: And you can get the selected/deseleted items from the SelectionChangedEventArgs e. In order to create a ListView with two lines of text on each item, I use a SimpleAdapter in the following way: Create a List that will hold your data. That then causes some of the text in the heading to fall over to the next line. 1 Create a resource for the drag handle ID by creating or adding to values/ids. I want the text of that item (or any other property such text color) will be changed when an item clicked!! I do that by : Apr 26, 2011 · The simple solution is to set the focus to the ListView first whenever your form is displayed. // onCreate. Jan 2, 2013 · 2. if not, set an identifier as tag for the view. The content_main. getItem(i); } Update: You can compare specific item using index with list adapter all items as below : Apr 8, 2014 · 3. Provide details and share your research! But avoid …. getItemAtPosition(position); Feb 6, 2015 · First, you need to initialize the ListView, then add it to the layout of your activity. then use. In the example I do iterate through the items directly but I am persisting my ArrayList object somewhere else so I needed an arraylist object that could be of any size depending on the given amount of rows in my ListView. android:choiceMode You have to create a different state drawable for each color you want to use. The information I am adding consists of a "Device Name" (the main item) and "MAC Address" (the sub item). If anyone can assist in getting the data to read back into the app into the ListView, If i just have one item to try and read back it works if I try to get all three items the app fails. mListView. I'm trying to make this ListView show 2 items each row, somethings like this: I'm already using custom JSON Adapter to show Feb 15, 2014 · I am trying to style my Listview in android What I want to do:: I want to get a background color and the text color of the listview as shown in figure below [Edit] I also want a custom click eff Oct 16, 2015 · I have a listview in my application and its populated with all the currently installed applications on my device, also i have it getting the list of permissions from all the installed applications. It would deflate the view from the xml and add it to the listview. list_item_text, null); convertView. 21. This gives you the exact value of the item clicked. WriteLine("Selected: {0}", e. android. getItemAtPosition(position); System. public void onCreate(Bundle savedInstanceState) {. What your doing is correct when your using Layout-Weights make sure you set the width as "0dp" rather than wrap-content. Jun 11, 2014 · 2. Now, the getView will return the approriate View depending on the hideStatusCheck. Context; import android. return true; } Then each item should be clickable (and therefore should highlight on being touched). : Debug. The other getSelected* methods also do not work. i am trying to get index of the list item, through which i can set different views for different items in another activity. kgandroid kgandroid. . mList = (ListView) findViewById(R. EditText; Apr 30, 2015 · But i want to set some items as checked with respect to a condition at start up. I have never used a Database before and as of right now the code will let the user type in text and it will display it on the screen and add it to the database. MainActivityChampagne. getView () is the method that returns the actual view used as a row within the ListView at a particular position. listView); Jun 29, 2010 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Step 3 − Add the following code to src/MainActivity. You can read about doing this here: How to create a RelativeLayout programmatically with two buttons one on top of the other? You would create a Layout, then create a ListView and add it to that layout. listView1); mListView. android:drag-sort-listview:1. setAdapter(new ArrayAdapter&lt; Oct 26, 2013 · 1. Set checkbox object as tag to your row view that might be your 'convertView' in getView () method of your adapter. I have been successful in writing to Firebase, I however am having a problem reading from Firebase into a ListView. Now I want to go through the list view one at a time and click the item and make sure the right activity is getting launched. You have to override the following methods: isEnabled (int position) // return false if position == positionYouWantToDisable. As one scrolls off the edge, it is re-used to show the data for the next one scrolling in. android:layout_weight="1". util. xml file. text1, data_array); listView. setItemChecked(1,true); //Don't make the same mistake I did by calling this function before setting the listview adapter. I want to delete item when I long clicked. simple_list_item_1, list); lv. How to add icon on each list item and change the text color,Background color. How can I save the list to a CSV file (in the internal storage of the device, application folder path) Using ArrayAdapter: ArrayList<String> inList = new ArrayList<String>(); ListView myList; Mar 18, 2010 · You need to set the inflated view "Clickable" and "able to listen to click events" in your adapter class getView () method. You cannot fail. String selectedItem = (String) parent. class); startActivity(intent); Well, you have to transfer the data from your database server to your Android device. My ListView declaration: android:layout_width="match_parent". May 5, 2015 · You can pass String[] or ArrayList too : Either you can pass String [] or if you wanted to loop through all String [] items to ArrayList, you can simply do by a single line. The method always returns null. The user typically sets focus to controls by clicking on them. ContentValues; import android. xml: <resources> possibly other resources Mar 19, 2011 · 3. Step 1: Create a New Project in Android Studio. If my list contains only 5 items, Talkback reads it as "showing item 1 of 6" instead of "showing item 1 of 5". Jan 23, 2022 · Step 1: Create a New Project in Android Studio. By default, when you click on a ListView item it doesn't change its state to "selected". For example, @Override. Step 2: Connect your app to Firebase. Using LayoutParams ofcourse. Asking for help, clarification, or responding to other answers. setAdapter(adapter); lv is your listview. Aug 1, 2013 · I implemented it by populating a String[] array, pass it to an ArrayAdapter and set it every time the data changes: data_array = populateString(); adapter = new ArrayAdapter<String>(this, android. simple_list_item_1, Countries); //Setting the android ListView’s adapter to the Mar 5, 2015 · 1. Android ListView is a ViewGroup which is used to display the list of items in multiple rows and contains an adapter which automatically inserts the items into the list. getSelectedItem(); The method doesn't have anything to return. Secondly, my answer is still okay. OnItemClickListener { parent, view, position, id ->. Check the log. setTag(viewHolder); return rowView; } We do the checking of the item's View type and if it meets the hide check, it will return 1, otherwise 0. so height is very minimum. ivity. list. clear ()" and then add new data using "list. The data inside of each row in the list must come from the data in the cursor. content_main. So i needed to process values of each item in the ListView and then feed my results into another part of my application. then i have an itemclicklistener that works fine and i want to highlight the textview that has been clicked by doing the following. application. ViewGroup. Large screens (e. getSelectedItems(); we are forced to use this stupendously ridiculous API: SparseBooleanArray checked = my_list_view. layout. findViewById(R. All you need to do is set everything to transparent except the android:state_window_focused="false" item. Apr 23, 2018 · Right now I am working on doing it through text. The ListView items height are the height of item layout contents, eg android. android:descendantFocusability="blocksDescendants". The ListView does not do that automatically. sort(list); adapter = new ArrayAdapter<String>(this, android. public void onListItemClick(ListView parent, View v, int position, long id){. What you have to do is to use the position and obtain the underlying object by doing: myList. start your thread. Jul 31, 2019 · This example demonstrates how do I handle the click event in ListView in android. Here is my code Java mDrawerListView. Showing the current selection in a listview. You can also adjust the heights of the listview items in the above getView () method of the adapter. If your Adapter contains the code: @Override. // Event generated when user have long pressed the screen. super. getCheckedItemPositions(); int num_selected = 0; Aug 21, 2020 · You need to put the actual items in the list - you do with with an Adapter, where you actually create a View and put the data in it. Cursor; import android. g. Collections. Mar 13, 2017 · because you are missing a state, you need to mark the row as activated and have the drawable that indicates the row as selected for the activated state. Write on click listener on your row view. ListView shot = getListView(); shot. This is my list view right now. I want to remove the header view count from this. First ı want to get position and then ı want to remove any item. Activity; import android. Use this, with duration added. ArrayList<String> listDesc = new ArrayList<String>(); Jul 31, 2015 · //Declaring Array adapter ArrayAdapter<String> countryAdapter = new ArrayAdapter<String>(this,android. View; import android. just use setOnItemClickListener. Comments are added in the code to get to know in detail. onCreate(savedInstanceState); When the fragment is opened I would like one of the items to be selected by default (depending on whether edit mode is 1/enabled), I have the position of this item ready. It compiles and functions correctly, see if you can adapt it for your particular needs: layout/taxi_list_item. OR use option 2. When you need to remove and replace all items, you have to clear all items from data-list using "list. Android TV. So I create : answer_item. and set item as read in your data structure. Adapter = ringTonesListAdapter; ringTonesListView. We are creating a custom ListView of by subclassing ArrayAdapter with the DataModel as the object. You have to create a web service that will return data to you from mysql. It differs from a ListView by allowing two levels which are groups that can be easily expanded and collapsed by touching to view and their respective children items. I have a list view and I want to add a bottom border to each list item so it acts as a separating line between all the cells. CHOICE_MODE_SINGLE), and try to highlight the option with setItemChecked but it doesn't work. What is the problem here? Thanks in Advance Mar 3, 2010 · There are two ways to doing the same: You may set the value of android:divider="#FFCCFF" in layout xml file. Will scroll the item in position smoothly to the top of the listview. getChildCount();i++){. If you want to change the height of list view dynamically, you can use. I know that there are solutions using onclick listeners. Aug 14, 2013 · 1) lv = findViewById(R. values - String[] instead of, listItems = new ArrayList<String>(); Feb 4, 2020 · Each line of the ListView contains 5 strings separated by semi-colon as follows: The record length of the list can vary, which may sometimes reach up to 400. onItemClickListener = AdapterView. The checked item obtain only when if the user check/Uncheck an item. You have clearly stated that you want to use margins ( android:layout_margin) but your code clearly uses padding ( android:padding) so I included both. I believe this has to do with the "Enabled" attribute of the items in the ListAdapter. SQLiteDatabase; import android. After creating a new project. //Set background of all items to white. 4 sec sleep. 8k 20 184 180. FILL_PARENT, theSizeIWant)); or. java Jan 4, 2011 · Instead of simply requesting the selected items as a List of Object s (dear Google, this is what we expect): List selected_items = my_list_view. java. Sam. getItemViewType(int position) - returns information which layout type you should use based on position. LayoutParams(LayoutParams. onCreate(savedInstanceState); setContentView(R. Intent intent = new Intent(this, DetailsActivity. May 25, 2010 · Here's a brief tutorial on using it in Android Studio with an in-memory list: Add this to the build. //TODO: ACTIONS. out. addAll(arrayList,values); arrayList - ArrayList. val item = parent. So as to get all Heading and list view items to align correctly and give equal weights for each column. There's an example on the Android developer site (not in Kotlin for some reason but you'll get the idea): private class MyAdapter extends BaseAdapter { // override other abstract methods here @Override public View Build apps that give your users seamless experiences from phones to tablets, watches, and more. Sep 12, 2011 · To make the items in a list non-clickable, you have to make the adapter return false on its isEnabled method for the items in the list. The height of list view items are adjusted based on its contents. All the insertion and removal should be done on listItems; the changes in listItems should be reflected in the view. answered Apr 22, 2014 at 6:49. android:layout_height="0dp". listview. String val =(String) parent. smoothScrollToPositionFromTop(position,offset,duration); descrease duration to make scrolling faster Nov 8, 2012 · ListView mListView = (ListView)findViewById(R. simple_list_item_1, myKeys)); and clicking on the listview items is quite simple and easy method. public boolean onLongClick(View arg0){. You should use only one adapter binded with the list of data you need to list. An example from online is below. getCount();i++){ adapter. xml Jul 20, 2022 · Step 1: Create a New Project in Android Studio. println("Value is "+val); } Oct 16, 2014 · Now I want to get the selected item of the list view. The best option is unfortunately JSON and a REST interface to your database. In second image, height is increased based on the size of the text. this,countries); 0) we define a String array named countries contains four Values those we wanna display . ChromeOS. project. Pass in the resource id of your xml layout to this adapter. Jul 29, 2013 · 0. return false; // If you do not want the event to keep occuring again and again. setOnItemClickListener(new OnItemClickListener() Apr 23, 2013 · I found it impossible to center the items in a ListView if the LisView itself is defined with android:layout_width="wrap_content" This does not make sence, because this parameter should only affect the position of the ListView and not its elements. Jul 27, 2016 · I am getting textviews value of first item (Position) in listview. It's easy using this interface . mainList); 2) la = new MyOwnInnerClass(MainClass. I am trying to dynamically add information to a ListView. Dec 21, 2012 · How I can get the selected item data in onItemLongClick ? listView. setClickable(true); convertView. content. xml contains the ListView as shown below. widget. for (int i=0;i<adapter. Mar 9, 2011 · 0. id. Step 2 − Add the following code to res/layout/activity_main. In first image, no content. String pathtofile = (String) adaptview. 1) here we pass to lv object the id of our Element 'ListView' that will consist countries values with View Text ; Aug 16, 2022 · Step by Step Implementation. List<Map<String, String>> data = new ArrayList<Map<String, String>>(); Nov 30, 2016 · I am doing an Android App. setItemChecked(position,true); May 13, 2015 · Clicking an item in the list view takes you to another activity. activity_main); Apr 14, 2010 · rowView. setAdapter(adapter); May 12, 2014 · 1. Set a DragListener and RemoveListener to update the list accordingly. android:layout_width="match_parent". Android for Cars. simple_list_item_1, null, from, to, 0) {. My objective is to have a universal identifier for each item since I am using CursorAdapter so I don't have to calculate the item's position relative to the visible items. 86. Next, you need to create a custom adapter. I currently use the clientList. getItemAtPosition(position); Build apps that give your users seamless experiences from phones to tablets, watches, and more. Note that select Java as the programming language. String description[] = {"inspiron","pavilion","macbook"}; /* i want this list on another activity after clicking listitem of first activity. simple_list_item_1 height. And I did it like this: Dec 13, 2010 · 3. This is a modified simple_list_item_1 which refers to your value Aug 3, 2022 · Android ExpandableListView is a view that shows items in a vertically scrolling two-level list. 1) get rid of horizontal dividers that print between items 2) change font size of test displayed in listview 3) change the padding around each item displayed. inflate(R. Here is my code. public void onItemClick(AdapterView<?> parent, View view, int position, long id) {. At that point your onClickListener is just for saving the selection and I don't even bother with the OnSelectedItemListener : @Override. //At this stage the layout has been updated and the Selected can be set to true Jan 21, 2014 · I want to set border of Edittext and items of listview as in the picture : My xml code is as following : &lt;LinearLayout android:background="#BDD6E0" android: Jun 17, 2014 · 1. I have done this thro onLongClickListener. You calculate the screensize and in getView set the layout parameters (you can do anything to the view in it). 1. Step 1: Create a new Project. edited Apr 7, 2015 at 12:41. Here and Here are good tutorials about customizing the ListView . final List<Kisi> kisiler = new ArrayList<Kisi>(); @Override. Aug 18, 2013 · If you want to go by the way with creating a new ArrayAdapter and access to the items inside the ListView by overriding the getView() method. long id) {. setOnItemClickListener(this); public void onItemClick(AdapterView<?> parent, View view, int position,long id) {. // Repeat this for contactName and contactNo. The code for that has been given in both Java and Kotlin Programming Language for Android. May 16, 2024 · Android ListView in Kotlin. Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project. 6. Nov 10, 2014 · What I want to do is display actions in ActionBar, if item of ListView is selected. Oct 8, 2010 · Here's the code from my Activity where I set the Adapter for the ListView and also subscribe to LayoutChange (or in Java attach an OnLayoutChangeListener) ringTonesListView. xml and add the code below. xml and list_selector_unread. Number | Name | ID (visibility = gone) | Level | button1 | button2 1) Set the choice behavior for the List. setAdapter(adapter); My problem is that I do not know how to display the data Aug 3, 2022 · Code. My MainActivity. I want to be possible to mark items read just by reading them. And it depends on the Adapter you are using. for this, you first need to add an edittext, where you will type to filter data from the list, then enable filteration in the list, editText = (EditText) findViewById(R. It looks like after reading for a while that 2) and 3) should be controlled by changing these properties Sep 13, 2017 · I am new in android development and I have a simple question, I made a ListView with ArrayAdapter and an array of some strings. simple_list_item_1, android. No checked item obtain even if the item is set as checked at the start up programmatically. My list is as. Inside that click-listener to row view getTag from view that's parameter in onClick method and cast it to checkbox and then setChecked to true for that checkbox object. Bundle; import android. However, you can also specify which controls gets the focus programmatically. 4. Step 2: Working with activity_main. You would need to set an OnItemClickListener on the ListView. see my question for an example. toString(); // Again use view ^^^^^. import android. xml. check if that view tag still equal to the identifier. ExpandableListViewAdapter in android loads the data into the items associated with Jul 4, 2016 · I am new to android, I have a code in which I have placed buttons in list view. android:orientation="vertical". database. Start a Thread on your getView method. This answer is useful. Because, you specified android:layout_height="wrap_content". setChoiceMode(ListView. int duration = 500; //miliseconds int offset = 0; //fromListTop listview. public boolean areAllItemsEnabled() {. ArrayList; import android. Please, remove the state_selected from your selector drawable xml and declare some choiceMode for it. SQLiteOpenHelper; public class MainActivityChampagne { public static final String Nov 30, 2017 · EDIT: Okay, just for kicks, I threw this together. Sep 14, 2014 · I have a Listview in android that can be read by TTS when you click the items it reads it, but my problem is how to make the TTS to read all the items by clicking any of the items in the listview only once? here's the codes Aug 8, 2013 · I have a listview in that i want when my activity starts then the first item will have background and the other items don't have any background. 30. package android. setOnItemLongClickListener(new OnItemLongClickListener() { @Override public boolean onItemLong Sep 18, 2013 · You need to override getViewItemType and getViewTypeCount. protected void onCreate(Bundle savedInstanceState) {. check if item is read. When I open my app, I see messages ordered from old to new and my listView position is set to the bottom of the listView. getItemAtPosition(position); View rowview = (View) adaptview. cid)). You need to do. Apr 22, 2014 · Collections. So, when the event fires and you do: myList. I have three main things I want to change with the appearance of a ListView. With this you also have to specify height of divider like this android:dividerHeight="5px". You can check the tutorial of Vogella, it s a great one showing u step by step. If you want different height, create an xml file and put a android:layout_height or android:minHeight attribute. getLayoutParams Jan 15, 2021 · Step by Step Implementation. for (int i=0;i<parent. My code: Main Activity: import android. vj oi ve es lh pz od ja zl af