android-listview – Make Me Engineer

How to implement search in CustomListView based on class item of POJO class in Android?

June 5, 2023 by Tarik

You want your adapter to implement Filterable. Then override getFilter to perform the search @Override public Filter getFilter() { return new Filter() { @Override protected void publishResults(CharSequence constraint, FilterResults results) { if (results != null && results.count >= 0) { setData(results.values); } else { setData(mPostingData); } notifyDataSetInvalidated(); } @Override protected FilterResults performFiltering(CharSequence constraint) { FilterResults … Read more

How to filter ListView using getFilter() in BaseAdapter

June 4, 2023 by Tarik

i hope this example could help you in the Main_Activity EditText etSearch; BaseAdapterFilterable adapter; etSearch.addTextChangedListener(new TextWatcher() { @Override public void onTextChanged(CharSequence s, int start, int before, int count) { // Listview name of the class Listview.this.adapter.getFilter().filter(s); } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { // TODO Auto-generated method stub } … Read more

Using Picasso library with ListView

June 3, 2023 by Tarik

There are 2 things you need to change: 1) History.icon should be the String url of the icon, not a Picasso object. You can also use a File, Uri, or int, but a String url is probably what you want. 2) Modify your Adapter’s getView() method to load the icon using Picasso (see the last … Read more

Android: Autocomplete TextView Similar To The Facebook App

May 27, 2023 by Tarik

First make your EditText into a MultiAutoCompleteTextView. A MultiAutoCompleteTextView allows you to replace certain parts of the text, for example text after ‘@’. The you can do something like this: final MultiAutoCompleteTextView inputEditText = (MultiAutoCompleteTextView) dialog.findViewById(R.id.MyEditText); String[] COUNTRIES = new String[] { “Belgium”, “France”, “Italy”, “Germany”, “Spain” }; ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line, COUNTRIES); … Read more

Reusing views in Android Listview with 2 different layouts

May 26, 2023 by Tarik

You need to let the adapter’s view recycler know that there is more than one layout and how to distinguish between the two for each row. Simply override these methods: @Override public int getItemViewType(int position) { // Define a way to determine which layout to use, here it’s just evens and odds. return position % … Read more

How can I update information in an Android Activity from a background Service

May 26, 2023 by Tarik

How can I set up my Activity to be listening to the Service? Is this the best way to approach this problem? You have three major options, as I see it: Polling. The Activity periodically asks the Service for the latest data. IMHO, this option sucks, but it’s certainly possible. Callbacks. Per jax’s answer, the … Read more

java.lang.NullPointerException: Attempt to invoke virtual method ‘int android.view.View.getImportantForAccessibility()’ on a null object reference

May 20, 2023 by Tarik

In your public View getView method change return null; to return convertView;.

How to show installed app list in a listview without Checkbox getting unchecked when listview is scrolled?

May 19, 2023 by Tarik

Activity import java.util.ArrayList; import java.util.List; import android.app.Activity; import android.content.pm.PackageInfo; import android.os.Bundle; import android.widget.ListView; public class AppScreen extends Activity { private ListView list; ArrayList<Datamodel> res; MyAdapter _adapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.app_screen); list = (ListView) findViewById(R.id.list); List<PackageInfo> _myapps = getPackageManager().getInstalledPackages(0); res = new ArrayList<Datamodel>(); for (int i = 0; i < _myapps.size(); i++) … Read more

Help regarding onClick() event on an item of ListView custom row layout

May 18, 2023 by Tarik

Please refer this, Me just writing the code to give you idea, Not in correct format class youaddaper extends BaseAdapter{ public View getView(int position, View convertView, ViewGroup parent){ LayoutInflater inflate = LayoutInflater.from(context); View v = inflate.inflate(id, parent, false); ImageView imageview = (ImageView) v.findViewById(R.id.imageView); imageview.setOnClickListener(new imageViewClickListener(position)); //you can pass what ever to this class you want, … Read more

Highlight custom listview item when long click

May 16, 2023 by Tarik

using getActivity() is enough setListAdapter(new CustomPasswordsList(getActivity(), titles)); You need to override onItemCheckedStateChanged public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) { final int checkedCount = getListView().getCheckedItemCount(); // get checked items count Drawing from the samples @ android-sdk-linux/samples/android-17/ApiDemos/src/com/example/android/apis/view/List16 Example : Modify the below according to your needs public class MainActivity extends ListActivity { String[] … Read more