android-listview

Android custom Row Item for ListView

Add this row.xml to your layout folder <?xml version=”1.0″ encoding=”utf-8″?> <LinearLayout xmlns:android=”http://schemas.android.com/apk/res/android” android:layout_width=”match_parent” android:layout_height=”match_parent” android:orientation=”vertical” > <TextView android:layout_width=”wrap_content” android:layout_height=”wrap_content” android:text=”Header”/> <TextView android:layout_width=”wrap_content” android:layout_height=”wrap_content” android:id=”@+id/text”/> </LinearLayout> make your main xml layout as this <?xml version=”1.0″ encoding=”utf-8″?> <LinearLayout xmlns:android=”http://schemas.android.com/apk/res/android” android:layout_width=”fill_parent” android:layout_height=”fill_parent” android:orientation=”horizontal” > <ListView android:id=”@+id/listview” android:layout_width=”fill_parent” android:layout_height=”fill_parent” > </ListView> </LinearLayout> This is your adapter class yourAdapter extends … Read more

android – listview get item view by position

Use this : public View getViewByPosition(int pos, ListView listView) { final int firstListItemPosition = listView.getFirstVisiblePosition(); final int lastListItemPosition = firstListItemPosition + listView.getChildCount() – 1; if (pos < firstListItemPosition || pos > lastListItemPosition ) { return listView.getAdapter().getView(pos, null, listView); } else { final int childIndex = pos – firstListItemPosition; return listView.getChildAt(childIndex); } }

How can I parse a local JSON file from assets folder into a ListView?

As Faizan describes in their answer here: First of all read the Json File from your assests file using below code. and then you can simply read this string return by this function as public String loadJSONFromAsset() { String json = null; try { InputStream is = getActivity().getAssets().open(“yourfilename.json”); int size = is.available(); byte[] buffer = … Read more

Android ListView selected item stay highlighted

I found the proper way. It’s very simple. In resource describe following: android:choiceMode=”singleChoice” android:listSelector=”#666666″ (or you may specify a resource link instead of color value) Programmatical: listView.setSelector(Drawable selector); listView.setSelector(int resourceId); listView.setChoiceMode(int mode); mode can be one of these: AbsListView.CHOICE_MODE_SINGLE, AbsListView.CHOICE_MODE_MULTIPLE, AbsListView.CHOICE_MODE_NONE (default) (AbsListView is the abstract ancestor for the ListView class) P.S. manipulations with onItemClick … Read more

How can I update a single row in a ListView?

I found the answer, thanks to your information Michelle. You can indeed get the right view using View#getChildAt(int index). The catch is that it starts counting from the first visible item. In fact, you can only get the visible items. You solve this with ListView#getFirstVisiblePosition(). Example: private void updateView(int index){ View v = yourListView.getChildAt(index – … Read more

List View Filter Android

Add an EditText on top of your listview in its .xml layout file. And in your activity/fragment.. lv = (ListView) findViewById(R.id.list_view); inputSearch = (EditText) findViewById(R.id.inputSearch); // Adding items to listview adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.product_name, products); lv.setAdapter(adapter); inputSearch.addTextChangedListener(new TextWatcher() { @Override public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) { // When … Read more

How to add a footer in ListView?

Create a footer view layout consisting of text that you want to set as footer and then try View footerView = ((LayoutInflater) ActivityContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.footer_layout, null, false); ListView.addFooterView(footerView); Layout for footer could be something like this: <?xml version=”1.0″ encoding=”utf-8″?> <LinearLayout xmlns:android=”http://schemas.android.com/apk/res/android” android:layout_width=”wrap_content” android:layout_height=”wrap_content” android:paddingTop=”7dip” android:paddingBottom=”7dip” android:orientation=”horizontal” android:gravity=”center”> <LinearLayout android:id=”@+id/footer_layout” android:layout_width=”wrap_content” android:layout_height=”wrap_content” android:orientation=”horizontal” android:gravity=”center” android:layout_gravity=”center”> <TextView android:text=”@string/footer_text_1″ android:id=”@+id/footer_1″ … Read more

Custom Listview Adapter with filter Android

You can use the Filterable interface on your Adapter, have a look at the example below: public class SearchableAdapter extends BaseAdapter implements Filterable { private List<String>originalData = null; private List<String>filteredData = null; private LayoutInflater mInflater; private ItemFilter mFilter = new ItemFilter(); public SearchableAdapter(Context context, List<String> data) { this.filteredData = data ; this.originalData = data ; … Read more

Your content must have a ListView whose id attribute is ‘android.R.id.list’

Rename the id of your ListView like this, <ListView android:id=”@android:id/list” android:layout_width=”fill_parent” android:layout_height=”fill_parent”/> Since you are using ListActivity your xml file must specify the keyword android while mentioning to a ID. If you need a custom ListView then instead of Extending a ListActivity, you have to simply extend an Activity and should have the same id … Read more