Remove items from a Custom ListView (Android)

Remove items from a Custom ListView (Android) - android

How do I create a neverending listview of list items with checkboxes that can be removed with a delete item button? The answer is below.

In order to create a neverending listview the first thing you need to have is a set of two runnables. These threads will update the array of data in your adapter.
final int itemsPerPage = 100;
ArrayList<HashMap<String,String>> listItems = new ArrayList<HashMap<String,String>>();
boolean loadingMore = false;
int item = 0;
//Since we cant update our UI from a thread this Runnable takes care of that!
public Runnable returnRes = new Runnable() {
#Override
public void run() {
//Loop thru the new items and add them to the adapter
if(groceries.getGroceries().size() > 0){
for(int i=0;i < listItems.size();i++) {
HashMap<String,String> grocery = listItems.get(i);
adapter.add(grocery);
}
//Update the Application title
setTitle("Grocery List with " + String.valueOf(groceries.getGroceries().size()) + " items");
//Tell to the adapter that changes have been made, this will cause the list to refresh
adapter.notifyDataSetChanged();
//Done loading more.
loadingMore = false;
}
}
};
//Runnable to load the items
public Runnable loadMoreListItems = new Runnable() {
#Override
public void run() {
//Set flag so we cant load new items 2 at the same time
loadingMore = true;
//Reset the array that holds the new items
listItems = new ArrayList<HashMap<String,String>>();
//Get 8 new listitems
for (int i = 0; i < itemsPerPage; i++) {
if (i < groceries.getGroceries().size()) {
listItems.add(groceries.getGroceries().get(i));
item++;
}
}
//Done! now continue on the UI thread
runOnUiThread(returnRes);
}
};
Then your onCreate() method should look something like this with an array passed to your adapter:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_create_grocery_list);
//add the footer before adding the adapter, else the footer will not load!
View footerView = ((LayoutInflater)this.getSystemService(Context.LAYOUT_INFLATER_SERVICE))
.inflate(R.layout.activity_footer_view, null, false);
this.getListView().addFooterView(footerView);
adapter = new ListViewAdapter(this,groceries);
setListAdapter(adapter);
getListView().setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
//Here is where the magic happens
this.getListView().setOnScrollListener(new OnScrollListener(){
//useless here, skip!
#Override
public void onScrollStateChanged(AbsListView view, int scrollState) {}
//dumdumdum
#Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
//what is the bottom iten that is visible
int lastInScreen = firstVisibleItem + visibleItemCount;
//is the bottom item visible & not loading more already ? Load more !
if((lastInScreen == totalItemCount) && !loadingMore && item < groceries.getGroceries().size()){
Thread thread = new Thread(null, loadMoreListItems);
thread.start();
}
}
});
}
You will also need a delete method to remove the items with checkboxes and a checkOff method as well. They look like this:
ArrayList<Integer> checkedBoxes = new ArrayList<Integer>();
ArrayList<HashMap<String,String>> checkedItems = new ArrayList<HashMap<String,String>>();
public void deleteItem(View view) {
if (checkedBoxes.size() > 1 || checkedBoxes.size() == 0) {
Toast.makeText(getApplicationContext(), "You can only delete one item at a time. Sorry :(", Toast.LENGTH_LONG).show();
return;
} else {
checkedItems.add(groceries.getGroceries().get(checkedBoxes.get(0)));
groceries.getGroceries().removeAll(checkedItems);
checkedBoxes.clear();
try {
groceries.serialize();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Intent intent = new Intent(getApplicationContext(),CreateGroceryList.class);
startActivity(intent);
}
}
public void checkOff(View view) {
CheckBox box = (CheckBox)view;
DataModel d = (DataModel)box.getTag();
if(!checkedBoxes.contains(d.index)) {
checkedBoxes.add(d.index);
} else {
checkedBoxes.remove((Integer)d.index);
}
}
In order to communicate with the adapter it is helpful to have a DataModel class that will model our information. My DataModel has an index variable to keep track of the selected item.
public class DataModel {
int index;
HashMap<String,String> data;
boolean selected;
public DataModel(int i) {
index = i;
data = new HashMap<String,String>();
selected = false;
}
public HashMap<String, String> getData() {
return data;
}
public void setData(HashMap<String, String> data) {
this.data = data;
}
public boolean isSelected() {
return selected;
}
public void setSelected(boolean selected) {
this.selected = selected;
}
}
Finally, here is the code for the BaseAdapter:
public class ListViewAdapter extends BaseAdapter {//To create an adapter we have to extend BaseAdapter instead of Activity, or whatever.
private ListActivity activity;
private View vi;
private ArrayList<DataModel> data;
private static LayoutInflater inflater=null;
public ListViewAdapter(ListActivity a, GroceryList g) {
activity = a;
data = new ArrayList<DataModel>();
inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
groceries = g;
}
public void add(HashMap<String,String> a){
DataModel d = new DataModel(data.size());
d.setData(a);
d.setSelected(false);
data.add(d);
}
public ArrayList<DataModel> getData() {
return data;
}
public int getCount() { //get the number of elements in the listview
return data.size();
}
public Object getItem(int position) { //this method returns on Object by position
return position;
}
public long getItemId(int position) { //get item id by position
return position;
}
public View getView() {
return vi;
}
public View getView(int position, View convertView, ViewGroup parent) { //getView method is the method which populates the listview with our personalized rows
vi=convertView;
final ViewHolder holder = new ViewHolder();
if(convertView==null) {
vi = inflater.inflate(R.layout.custom_row_view, null);
//every item in listview uses xml "listview_row"'s design
holder.name = (CheckBox)vi.findViewById(R.id.name);
holder.price = (TextView)vi.findViewById(R.id.price); // You can enter anything you want, buttons, radiobuttons, images, etc.
holder.quantity = (TextView)vi.findViewById(R.id.quantity);
holder.name
.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
DataModel element = (DataModel) holder.name
.getTag();
element.setSelected(buttonView.isChecked());
}
});
vi.setTag(holder);
holder.name.setTag(data.get(position));
ViewHolder vholder = (ViewHolder) vi.getTag();
vholder.name.setChecked(data.get(position).isSelected());
HashMap<String, String> hash = new HashMap<String, String>(); //We need a HashMap to store our data for any item
hash = data.get(position).getData();
vholder.name.setText(hash.get("brand") + " " + hash.get("name")); //We personalize our row's items.
vholder.price.setText("$" + hash.get("price"));
vholder.quantity.setText("Quantity: " + hash.get("quantity"));
} else {
vi = convertView;
((ViewHolder) vi.getTag()).name.setTag(data.get(position));
}
if (holder.name == null) {
ViewHolder vholder = (ViewHolder) vi.getTag();
vholder.name.setChecked(data.get(position).isSelected());
HashMap<String, String> hash = new HashMap<String, String>(); //We need a HashMap to store our data for any item
hash = data.get(position).getData();
vholder.name.setText(hash.get("brand") + " " + hash.get("name")); //We personalize our row's items.
vholder.price.setText("$" + hash.get("price"));
vholder.quantity.setText("Quantity: " + hash.get("quantity"));
}
return vi;
}
}
class ViewHolder {
CheckBox name;
TextView price;
TextView quantity;
public CheckBox getName() {
return name;
}
public void setName(CheckBox name) {
this.name = name;
}
public TextView getPrice() {
return price;
}
public void setPrice(TextView price) {
this.price = price;
}
public TextView getQuantity() {
return quantity;
}
public void setQuantity(TextView quantity) {
this.quantity = quantity;
}
}
You also need a few xml files in your layout folder this is what they will look like:
You need a footerview that will tell your list when to load new items:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:gravity="center_horizontal"
android:padding="3dp"
android:layout_height="fill_parent">
<TextView
android:id="#id/android:empty"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:gravity="center"
android:padding="5dp"
android:text="Add more grocery items..."/>
A custom row view that is populated by your BaseAdapter:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<CheckBox
android:id="#+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="CheckBox"
android:focusable="false"
android:textSize="25dip"
android:onClick="checkOff"
/>
<TextView
android:id="#+id/quantity"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="40dip"
android:text="Lastname"
android:textSize="15dip" />
<TextView
android:id="#+id/price"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="40dip"
android:text="Lastname"
android:textSize="15dip" />
</LinearLayout>
And a parent view, mine is called create_grocery_list because I'm writing a grocery list editor: This one must contain a ListView with the proper id.
<?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" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="400dp" >
<ListView
android:id="#android:id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1" >
</ListView>
</LinearLayout>
<AbsoluteLayout
android:layout_width="match_parent"
android:layout_height="72dp" >
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="105dp"
android:layout_y="0dp"
android:onClick="deleteItem"
android:text="#string/deleteItem" />
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="8dp"
android:layout_y="0dp"
android:onClick="goToAddItemScreen"
android:text="#string/addItem" />
<Button
android:id="#+id/button3"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="221dp"
android:layout_y="0dp"
android:onClick="scanner"
android:text="#string/scanCode" />
</AbsoluteLayout>
</LinearLayout>
And that's about it... hope this helps anyone. It's the most complete tutorial you'll find.
I learned all this from this tutorial: http://www.vogella.com/articles/AndroidListView/article.html#androidlists_overview then added the two runnables to make a neverending grocery list :) have fun programming...

Related

Remove a few values from ListView built with BaseAdapter

I am writing the basic task management application. I am using base adapter to work with ListView. I wonder how I can remove (a few) checked values from the list? And how I can remove only one value with long click?
if this posible with my adapter? I tried a few options but nothing worked.
Here is my code.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
>
<Button
android:id="#+id/btn1"
android:layout_width="50dp"
android:layout_height="40dp"
android:layout_alignParentRight="true"
android:text="\u2713"
android:background="#drawable/add_btn"
android:onClick="knopka2"/>
<EditText
android:id="#+id/input"
android:layout_width="wrap_content"
android:layout_height="50dp"
android:layout_alignParentLeft="true"
android:layout_toLeftOf="#id/btn1"
android:hint="put your task here"/>
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/listView"
android:divider="#drawable/deriver"
android:layout_below="#+id/input"
android:layout_centerHorizontal="true"
android:choiceMode="multipleChoice" />
<TextView
android:id="#+id/ttl"
android:layout_below="#id/listView"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button
android:id="#+id/tryClear"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/ttl"
android:onClick="tryClear"
/>
</RelativeLayout>
This is my Activity:
public class Trird extends AppCompatActivity {
Button btn;
EditText input4;
TextView ttl;
ListView list;
public static ArrayList<String> taskList = new ArrayList<String>();
SparseBooleanArray sparseBooleanArray;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.third);
input4 = (EditText) findViewById(R.id.input);
btn = (Button) findViewById(R.id.btn1);
list = (ListView) findViewById(R.id.listView);
ttl = (TextView)findViewById(R.id.ttl);
}
public String[] putToArray() {
String ag = input4.getText().toString().trim();
if (ag.length() != 0) {
taskList.add(ag);
input4.setText("");
}
String[] abc = taskList.toArray(new String[taskList.size()]);
return abc;
}
public void knopka2(View v) {
final String[] ListViewItems = putToArray(); //
list = (ListView) findViewById(R.id.listView);
list.setAdapter(new MyAdapter(ListViewItems, this));
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View tv, int i, long id) {
///tv.setBackgroundColor(Color.YELLOW);
///ttl.setText("selected: " + list.getAdapter().getItem(i));
sparseBooleanArray = list.getCheckedItemPositions();
String ValueHolder = "";
int a = 0;
while (a < sparseBooleanArray.size()) {
if (sparseBooleanArray.valueAt(a)) {
ValueHolder += ListViewItems[sparseBooleanArray.keyAt(a)] + ",";
}
a++;
}
ValueHolder = ValueHolder.replaceAll("(,)*$", "");
Toast.makeText(Trird.this, "ListView Selected Values = " + ValueHolder, Toast.LENGTH_LONG).show();
if(ValueHolder!=null){
taskList.remove(ValueHolder);
}
}
});
}
}
This is my adapter:
public class MyAdapter extends BaseAdapter {
private final Context context;//Context for view creation
private final String[] data;//raw data
public MyAdapter(String[] data, Context context){
this.data=data;
this.context=context;
}
//how many views to create
public int getCount() {
return data.length;
}
//item by index (position)
public Object getItem(int i) {
return data[i];
}
//ID => index of given item
public long getItemId(int i) {
return i;
}
//called .getCount() times - for each View of item in data
public View getView(int i, View recycleView, ViewGroup parent) {
if(recycleView==null)recycleView = LayoutInflater.from(context).inflate(R.layout.item,null);
((TextView)recycleView).setText(data[i]);//show relevant text in reused view
return recycleView;
}
}
And this is how looks like item in ListView.
<CheckedTextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="24sp"
android:drawableRight="?android:attr/listChoiceIndicatorMultiple"
/>

The problem is that you are trying removing item using the ListView remove methode.
Just remove the selected item from the list using the remove() method of your Adapter.
A possible way to do that would be:
CheckedTextView checkedText= baseAdapter.getItem([POSITION OF THE SELECTED ITEM]);
baseAdapter.remove(checkedText);
baseAdapter.notifyDataSetChanged();
put this code inside the wanted button click and there you go.

how to convert listview to gridview

below is my code which works fine for showing listview horizontally. how can I change it to gridvew. What changes should I make to change it to gridview? help me please
public class fifthscreen extends Activity {
int IOConnect = 0;
String _response;
String status;
HorizontalListView listview;
CategoryListAdapter3 cla;
String URL, URL2;
String SelectMenuAPI;
static ArrayList<Long> Category_ID = new ArrayList<Long>();
static ArrayList<String> Category_name = new ArrayList<String>();
static ArrayList<String> Category_image = new ArrayList<String>();
public static String allergen2;
String name;
String url1;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fifthscreen);
listview = (HorizontalListView) this.findViewById(R.id.listview2);
cla = new CategoryListAdapter3(fifthscreen.this);
new TheTask().execute();
}
public class TheTask extends AsyncTask<Void, String, String> {
#Override
protected void onPreExecute() {
super.onPreExecute();
}
#Override
protected String doInBackground(Void... arg0) {
try {
HttpGet request = new HttpGet(url);
HttpResponse response = client.execute(request);
HttpEntity resEntity = response.getEntity();
_response = EntityUtils.toString(resEntity);
} catch (Exception e) {
e.printStackTrace();
}
return _response;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
try {
JSONObject json2 = new JSONObject(result);
status = json2.getString("status");
if (status.equals("1")) {
JSONArray school4 = json2.getJSONArray("dish_allergen");
//
for (int i = 0; i < school4.length(); i++) {
JSONObject object = school4.getJSONObject(i);
Category_ID.add((long) i);
Category_name.add(object.getString("name"));
Category_image.add(object.getString("image"));
}
}
else {
JSONArray school2 = json2.getJSONArray("data");
for (int i = 0; i < school2.length(); i++) {
JSONObject object = school2.getJSONObject(i);
Category_ID.add((long) i);
Category_name.add(object.getString("name"));
}
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
listview.setAdapter(cla);
}
}
}
public class CategoryListAdapter3 extends BaseAdapter {
private Activity activity;
private AQuery androidAQuery;
public CategoryListAdapter3(Activity act) {
this.activity = act;
// imageLoader = new ImageLoader(act);
}
public int getCount() {
// TODO Auto-generated method stub
return fifthscreen.Category_ID.size();
}
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
ViewHolder holder;
androidAQuery = new AQuery(getcontext());
if(convertView == null){
LayoutInflater inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.viewitem2, null);
holder = new ViewHolder();
convertView.setTag(holder);
}else{
holder = (ViewHolder) convertView.getTag();
}
holder.txtText = (TextView) convertView.findViewById(R.id.title2);
holder.imgThumb = (ImageView) convertView.findViewById(R.id.image2);
holder.txtText.setText(fifthscreen.Category_name.get(position));
// imageLoader.DisplayImage(fifthscreen.Category_image.get(position),
activity, holder.imgThumb);
androidAQuery.id(holder.imgThumb).image(fifthscreen.Category_image.get(position), false,
false);
return convertView;
}
private Activity getcontext() {
// TODO Auto-generated method stub
return null;
}
static class ViewHolder {
TextView txtText;
ImageView imgThumb;
}
}
<!--- fifithscreen.xml--->
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_below="#+id/test_button_text5"
android:orientation="vertical" >
<com.example.examplecode.HorizontalListView
android:id="#+id/listview2"
android:layout_width="wrap_content"
android:layout_height="120dp"
android:layout_below="#+id/test_button_text5"
android:background="#ffffff"/>
</LinearLayout>
<!--viewitem2.xml--->
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
<ImageView
android:id="#+id/image2"
android:layout_width="90dp"
android:layout_height="70dp"
android:scaleType="fitXY"
android:padding="5dp"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:src="#drawable/ic_launcher"
/>
<TextView
android:id="#+id/title2"
android:layout_width="90dp"
android:layout_height="wrap_content"
android:textColor="#000"
android:paddingTop="10dp"
android:gravity="center_horizontal"
/>
</LinearLayout>

No change at all. Just set adapter of GridView as your are setting for ListView.

I'd suggest that you use RecyclerView intead.
You might want to refer to the documentation and learn more about it.
I'm sharing my piece of code in which I'm changing my gridview to listview using RecyclerView
If you're using Android Studio then you might need to add dependencies in gradle build. In my case I added as follows:
dependencies {
.
.
.
compile 'com.android.support:recyclerview-v7:24.0.0'
}
First I'm defining a grid cell which is to be used in grid layout
recycler_cell.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:id="#+id/imageView2"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true"
android:background="#FF000000"
android:layout_marginLeft="0dp"
android:layout_marginRight="0dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Small Text"
android:id="#+id/textView2"
android:layout_below="#+id/imageView2"
android:layout_alig=nParentStart="true"
android:layout_alignEnd="#+id/imageView2"
android:gravity="center"/>
</RelativeLayout>
Now I'm defining a list row which is to be used in list layout
recycler_row.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:id="#+id/imageView"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true"
android:background="#FF000000"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Large Text"
android:id="#+id/textView"
android:layout_alignParentTop="true"
android:layout_alignBottom="#+id/imageView"
android:layout_alignParentEnd="true"
android:layout_toEndOf="#+id/imageView"
android:gravity="center_vertical"
android:background="#FF333333"
android:textColor="#FFF"
android:padding="10dp"/>
</RelativeLayout>
recycler_view_test.xml
And of course define a layout which would contain RecyclerView
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/recyclerView"
android:layout_alignParentLeft="true"
android:layout_marginLeft="0dp"
android:layout_alignParentTop="true"
android:layout_marginTop="0dp"
android:layout_centerHorizontal="true"
>
</android.support.v7.widget.RecyclerView>
<Button
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Change Layout"
android:id="#+id/btnChange"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="62dp"/>
</RelativeLayout>
I'm sharing my piece of code but I'd strongly recommend that you go through the documentation and tutorials to understand RecyclerView to its full extent.
public class RecyclerViewTest extends AppCompatActivity
{
final int GRID = 0;
final int LIST = 1;
int type;
RecyclerView recyclerView;
RecyclerView.LayoutManager gridLayoutManager, linearLayoutManager;
MyAdapter adapter;
Button btnChange;
#Override
protected void onCreate(#Nullable Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.recycler_view_test);
// Display contents in views
final List<Person> list = new ArrayList<>();
list.add(new Person("Ariq Row 1"));
list.add(new Person("Ariq Row 2"));
list.add(new Person("Ariq Row 3"));
// Finding views by id
recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
btnChange = (Button) findViewById(R.id.btnChange);
// Defining Linear Layout Manager
linearLayoutManager = new LinearLayoutManager(getApplicationContext());
// Defining Linear Layout Manager (here, 3 column span count)
gridLayoutManager = new GridLayoutManager(getApplicationContext(), 3);
//Setting gird view as default view
type = GRID;
adapter = new MyAdapter(list, GRID);
recyclerView.setLayoutManager(gridLayoutManager);
recyclerView.setAdapter(adapter);
//Setting click listener
btnChange.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View view)
{
if (type == LIST)
{
// Change to grid view
adapter = new MyAdapter(list, GRID);
recyclerView.setLayoutManager(gridLayoutManager);
recyclerView.setAdapter(adapter);
type = GRID;
}
else
{
// Change to list view
adapter = new MyAdapter(list, LIST);
recyclerView.setLayoutManager(linearLayoutManager);
recyclerView.setAdapter(adapter);
type = LIST;
}
}
});
}
}
//Defining Adapter
class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder>
{
List<Person> list;
int type;
final int GRID = 0;
final int LIST = 1;
MyAdapter(List<Person> list, int type)
{
this.list = list;
this.type = type;
}
// Inflating views if the existing layout items are not being recycled
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType)
{
View itemView;
if (viewType == GRID)
{
// Inflate the grid cell as a view item
itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.recycler_cell, parent, false);
}
else
{
// Inflate the list row as a view item
itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.recycler_row, parent, false);
}
return new ViewHolder(itemView, viewType);
}
// Add data to your layout items
#Override
public void onBindViewHolder(ViewHolder holder, int position)
{
Person person = list.get(position);
holder.textView.setText(person.name);
}
// Number of items
#Override
public int getItemCount()
{
return list.size();
}
// Using the variable "type" to check which layout is to be displayed
#Override
public int getItemViewType(int position)
{
if (type == GRID)
{
return GRID;
}
else
{
return LIST;
}
}
// Defining ViewHolder inner class
public class ViewHolder extends RecyclerView.ViewHolder
{
TextView textView;
final int GRID = 0;
final int LIST = 1;
public ViewHolder(View itemView, int type)
{
super(itemView);
if (type == GRID)
{
textView = (TextView) itemView.findViewById(R.id.textView2);
}
else
{
textView = (TextView) itemView.findViewById(R.id.textView);
}
}
}
}
// Data Source Class
class Person
{
String name;
Person(String name)
{
this.name = name;
}
}
If you end up with the issue to auto fit the number of columns in case of grid layout then you might want to check #s-marks's answer in which he extended the GridLayoutManager class and added his own patch of code, and also my fix if you start having weird column width.
In my case, using his solution I made a class as follows:
class GridAutofitLayoutManager extends GridLayoutManager
{
private int mColumnWidth;
private boolean mColumnWidthChanged = true;
public GridAutofitLayoutManager(Context context, int columnWidth)
{
/* Initially set spanCount to 1, will be changed automatically later. */
super(context, 1);
setColumnWidth(checkedColumnWidth(context, columnWidth));
}
public GridAutofitLayoutManager(Context context, int columnWidth, int orientation, boolean reverseLayout)
{
/* Initially set spanCount to 1, will be changed automatically later. */
super(context, 1, orientation, reverseLayout);
setColumnWidth(checkedColumnWidth(context, columnWidth));
}
private int checkedColumnWidth(Context context, int columnWidth)
{
if (columnWidth <= 0)
{
/* Set default columnWidth value (48dp here). It is better to move this constant
to static constant on top, but we need context to convert it to dp, so can't really
do so. */
columnWidth = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 48,
context.getResources().getDisplayMetrics());
}
else
{
columnWidth = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, columnWidth,
context.getResources().getDisplayMetrics());
}
return columnWidth;
}
public void setColumnWidth(int newColumnWidth)
{
if (newColumnWidth > 0 && newColumnWidth != mColumnWidth)
{
mColumnWidth = newColumnWidth;
mColumnWidthChanged = true;
}
}
#Override
public void onLayoutChildren(RecyclerView.Recycler recycler, RecyclerView.State state)
{
int width = getWidth();
int height = getHeight();
if (mColumnWidthChanged && mColumnWidth > 0 && width > 0 && height > 0)
{
int totalSpace;
if (getOrientation() == VERTICAL)
{
totalSpace = width - getPaddingRight() - getPaddingLeft();
}
else
{
totalSpace = height - getPaddingTop() - getPaddingBottom();
}
int spanCount = Math.max(1, totalSpace / mColumnWidth);
setSpanCount(spanCount);
mColumnWidthChanged = false;
}
super.onLayoutChildren(recycler, state);
}
}
Then you simply have to change:
gridLayoutManager = new GridLayoutManager(getApplicationContext(), 3);
and use your custom grid layout object, here 100 is the width of columns in dp
gridLayoutManager = new GridAutofitLayoutManager(getApplicationContext(), 100);

You can do something like this:
For the layout of the grid/list use a merge:
<?xml version="1.0" encoding="utf-8"?>
<merge xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ViewStub android:id="#+id/list"
android:inflatedId="#+id/showlayout"
android:layout="#layout/list_view"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"/>
<ViewStub android:id="#+id/grid"
android:inflatedId="#+id/showlayout"
android:layout="#layout/grid_view"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"/>
</merge>
then define the layout for the list and the grid (and also for their items), and manage the passage between them inflating the layouts, and then use a method like this to change the current view:
private void changeView() {
//if the current view is the listview, passes to gridview
if(list_visibile) {
listview.setVisibility(View.GONE);
gridview.setVisibility(View.VISIBLE);
list_visibile = false;
setAdapters();
}
else {
gridview.setVisibility(View.GONE);
listview.setVisibility(View.VISIBLE);
list_visibile = true;
setAdapters();
}
}
If you need the complete code, it is available in this article:
http://pillsfromtheweb.blogspot.it/2014/12/android-passare-da-listview-gridview.html

Just take a GridView object instead of Listview like :
GridView gridView;
gridView= (GridView) this.findViewById(R.id.gridView1);
And in you getView method of CategoryListAdapter3 do like :
convertView = inflater.inflate(R.layout.your_grid_item_leyout, null);
And at last in onPostExecute of TheTask do like :
gridView.setAdapter(cla);
That's It.

Use GridView instead of below:
Then replace
listview = (HorizontalListView) this.findViewById(R.id.listview2);
to
GridView gridview;
gridview=(GridView) findViewById(R.id.gridview);
Everything else are fine, just set Adapter using GridView object. And you are done.

Android - ArrayList<Integer> not displaying properly in custom listVIew

I have a custom listView with three textViews. The data comes from a class with three ArrayLists, two of which are strings and the last one is an Integer. I have no problems populating and adding items to the list as I saw that when I displayed the ArrayList values on logCat via log.d, all three ArrayLists had their respectful items.
It seems to me that there is something wrong with the way I display data.
Here are the files:
list_row_layout.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:id="#+id/variant"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:text="variant" />
<TextView
android:id="#+id/quantity"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:text="quantity" />
<TextView
android:id="#+id/unit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginRight="221dp"
android:layout_toLeftOf="#+id/quantity"
android:text="unit" />
</RelativeLayout>
Here is the part in my activity_order_form.xml that has the listView element.
<RelativeLayout
android:id="#+id/relativeLayout3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_below="#+id/relativeLayout2"
android:orientation="vertical" >
<TextView
android:id="#+id/textViewVariantB"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="94dp"
android:text="Variant"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="#+id/textViewUnit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginRight="123dp"
android:text="Unit"
android:textAppearance="?android:attr/textAppearanceLarge" />
<ListView
android:id="#+id/listViewProductOrder"
android:layout_width="match_parent"
android:layout_height="350dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="#+id/textViewVariantB" >
</ListView>
</RelativeLayout>
Here is the class where the ArrayList are stored.
public class CurrentOrderClass {
private String productName;
//ArrayLists
private ArrayList<String> variantArray = new ArrayList<String>();
private ArrayList<String> unitArray = new ArrayList<String>();
private ArrayList<Integer> quantityArray = new ArrayList<Integer>();
//TODO ArrayList functions
public ArrayList<String> getUnitArray() {
return unitArray;
}
public void setUnitArray(ArrayList<String> unitArray) {
this.unitArray = unitArray;
}
public void addToUnitArray(String unit){
this.unitArray.add(unit);
}
public ArrayList<Integer> getQuantityArray() {
return quantityArray;
}
public void setQuantityArray(ArrayList<Integer> quantityArray) {
this.quantityArray = quantityArray;
}
public void addToQuantityArray(int quantity){
this.quantityArray.add(quantity);
}
public ArrayList<String> getVariantArray() {
return variantArray;
}
public void setVariantArray(ArrayList<String> variantArray) {
this.variantArray = variantArray;
}
public void addToVariantArray(String variantArray){
this.variantArray.add(variantArray);
}
}
Here is the CustomListAdapter.java file
public class CustomListAdapter extends BaseAdapter {
private ArrayList<CurrentOrderClass> listData;
private LayoutInflater layoutInflater;
public CustomListAdapter(Context context, ArrayList<CurrentOrderClass> listData) {
this.listData = listData;
layoutInflater = LayoutInflater.from(context);
}
#Override
public int getCount() {
return listData.size();
}
#Override
public Object getItem(int position) {
return listData.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = layoutInflater.inflate(R.layout.list_row_layout, null);
holder = new ViewHolder();
holder.variantView = (TextView) convertView.findViewById(R.id.variant);
holder.unitView = (TextView) convertView.findViewById(R.id.unit);
holder.quantityView = (TextView) convertView.findViewById(R.id.quantity);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.variantView.setText(listData.get(position).getVariantArray().get(position).toString());
holder.unitView.setText(listData.get(position).getUnitArray().get(position).toString());
holder.quantityView.setText(String.valueOf(listData.get(position).getQuantityRow()));
return convertView;
}
static class ViewHolder {
TextView variantView;
TextView unitView;
TextView quantityView;
}
public void setListData(ArrayList<CurrentOrderClass> data){
listData = data;
}
}
This is part of my OrderForm.java activity, this shows the onCreate and the method that populates the listView.
public class OrderForm extends Activity {
public TextView tv;
private int variantPosition;
CustomListAdapter customListAdapter;
CurrentOrderClass currentOrder = new CurrentOrderClass();
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_order_form);
tv = (TextView)findViewById(R.id.textViewProduct);
//set variants here
popolateItem();
//set current order listview here
ArrayList image_details = getListData();
final ListView lv1 = (ListView) findViewById(R.id.listViewProductOrder);
customListAdapter = new CustomListAdapter(this, image_details);
lv1.setAdapter(customListAdapter);
}
private ArrayList getListData() {
ArrayList results = new ArrayList();
if(currentOrder.getQuantityArray().size() > 10){
loopUntil = currentOrder.getQuantityArray().size();
for(int i = 0; i < loopUntil; i++){
currentOrder.getQuantityArray();
currentOrder.getUnitArray();
currentOrder.getVariantArray();
results.add(currentOrder);
}
}
else{
loopUntil = 10;
for(int i = 0; i < loopUntil; i++){
currentOrder.getQuantityArray().add(i);
currentOrder.getUnitArray().add("Sample text here." + i);
currentOrder.getVariantArray().add("Another sample text here" + i);
results.add(currentOrder);
}
}
return results;
}
}
When I execute a Log.d statement to display the contents of my ArrayLists, it shows that my quantityArray has elements [0, 1, 2, 3, 4, 5, 6, 7, 9].
I know I can just convert quantityArray to an ArrayList from an ArayList, but I don't want to do that.
I think there's something wrong with my CustomListAdapter.
Any thoughts?

There is no where that you actually set the view, as in, it doesn't do anything, if convertView is null, you can't call any methods of it, convertView, if its is not null, will be ViewHolder in your context, what you need to do is have an object which is extending some type of view, instantiate it, give it methods to set the values, things like that.
For example here is what I use in an adapter that displays simple messages:
public class MessageView extends RelativeLayout {
private TextView mBody;
private String mBodyString = "";
private boolean mDrawn = false;
private boolean mLocal = false;
public MessageView(Context context) {
super(context);
this.drawView();
}
public MessageView(Context context, String body) {
super(context);
mBodyString = body;
this.drawView();
}
public MessageView(Context context, String body, boolean local) {
super(context);
mBodyString = body;
mLocal = local;
this.drawView();
}
private void drawView() {
if (mDrawn)
return;
mDrawn = true;
this.removeAllViews();
LayoutInflater li = (LayoutInflater) this.getContext()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.ALIGN_PARENT_TOP);
if(mLocal){
this.addView(li.inflate(R.layout.list_item_message_device, this, false),
params);
}else{
this.addView(li.inflate(R.layout.list_item_message_remote, this, false),
params);
}
mBody = (TextView) this.findViewById(R.id.tMessage);
mBody.setText(mBodyString);
}
public void setLocal(){
this.setLocal(true);
}
public void setLocal(boolean local){
mLocal = local;
mDrawn = false;
this.drawView();
}
public void setMessage(String body){
mBodyString = body;
mBody.setText(mBodyString);
}
}

I got it.
I changed
holder.quantityView.setText(String.valueOf(listData.get(position).getQuantityRow()));
to
holder.quantityView.setText(String.valueOf(listData.get(position).getQuantityArray().get(position)));

For creating custom list view as a library in android

we want to create a list view using adapter and we want to set the properties of the the list item outside the adapter.
For instance ,the list view contains 200 rows and 14 column, then we need to create the list item using adapter.Here the objects in adapter is creating based on the which items shown in screen.
After creating adapter ,after outside adapter we want to put getter,setter for the item 198 means .If initially in device the items upto 10 is diplayed means then then 10 items objects is created in adapter but the remaining is created when user scroll down
So null pointer execption is arised for the item 198.
I want to create a ListView as a custom component.In that the user can add any number of rows,any number of columns,etc
Any items as a list view,etc.
My aim is to create library for list view .In that list view user can add any number of rows,any number of columns,any items textview,spinner,etc.I need suggestions how to achieve it
All are welcome to give their ideas.

try use:
your xml list file item.xml:
<LinearLayout>
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<CheckBox
android:id="#+id/cbBox"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</CheckBox>
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="5dp"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:id="#+id/tvDescr"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:text=""
android:textSize="20sp">
</TextView>
<TextView
android:id="#+id/tvPrice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:layout_marginRight="10dp"
android:text="">
</TextView>
</LinearLayout>
<ImageView
android:id="#+id/ivImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_launcher">
</ImageView>
<LinearLayout/>
And your class adapter
public class BoxAdapter extends BaseAdapter {
Context ctx;
LayoutInflater lInflater;
ArrayList<Product> objects;
BoxAdapter(Context context, ArrayList<Product> products) {
ctx = context;
objects = products;
lInflater = (LayoutInflater) ctx
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public int getCount() {
return objects.size();
}
#Override
public Object getItem(int position) {
return objects.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
view = lInflater.inflate(R.layout.item, parent, false);
}
Product p = getProduct(position);
((TextView) view.findViewById(R.id.tvDescr)).setText(p.name);
((TextView) view.findViewById(R.id.tvPrice)).setText(p.price + "");
((ImageView) view.findViewById(R.id.ivImage)).setImageResource(p.image);
CheckBox cbBuy = (CheckBox) view.findViewById(R.id.cbBox);
cbBuy.setOnCheckedChangeListener(myCheckChangList);
cbBuy.setTag(position);
cbBuy.setChecked(p.box);
return view;
}
Product getProduct(int position) {
return ((Product) getItem(position));
}
ArrayList<Product> getBox() {
ArrayList<Product> box = new ArrayList<Product>();
for (Product p : objects) {
if (p.box)
box.add(p);
}
return box;
}
OnCheckedChangeListener myCheckChangList = new OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
getProduct((Integer) buttonView.getTag()).box = isChecked;
}
};
}
And your class for product
public class Product {
String name;
int price;
int image;
boolean box;
Product(String _describe, int _price, int _image, boolean _box) {
name = _describe;
price = _price;
image = _image;
box = _box;
}
}
And your main activity use the create adapter
boxAdapter = new BoxAdapter(this, products);
ArrayList<Product> products = new ArrayList<Product>();
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState)
...
//create adapter
fillData()
boxAdapter = new BoxAdapter(this, products);
// use lists
ListView lvMain = (ListView) findViewById(R.id.lvMain);
lvMain.setAdapter(boxAdapter);
}
// data for adapter
void fillData() {
for (int i = 1; i <= 20; i++) {
products.add(new Product("Product " + i, i * 1000, R.drawable.ic_launcher, false));
}

What you need is to implement LazyListView.
And I think you have a nice tutorial here to start with.

Android getView : Why getView not called?

I add two buttons (add and delete) to control the list view, when I delete an item, the item won't immediately disappear in the listview, only when I slide on the listview, the new item disappears. The getView() in my adapter won't be called after I delete an item unless I touch the screen or slide on the listview. can someone tell me why?
My xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/locationlist_layout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >"
<RelativeLayout
android:id="#+id/locationlisttitle_layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:background="#ADD8E6">
<ImageView
android:id="#+id/iv_menu2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="5dp"
android:src="#drawable/img_menu" />
<TextView
android:id="#+id/txtv_locationmanagetitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="Manage Location List"
android:textSize="20sp" />
<ImageView
android:id="#+id/iv_addlocation"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toRightOf="#+id/txtv_locationmanagetitle"
android:src="#drawable/addlocation" />
<ImageView
android:id="#+id/iv_deletelocation"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toRightOf="#+id/iv_addlocation"
android:src="#drawable/deletelocation" />
</RelativeLayout>
<ListView
android:id="#+id/lv_locations"
android:layout_height="500dp"
android:layout_width="fill_parent" />
</LinearLayout>
My button click event handler
ivbtn_deleteLocation.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
//remove selected items from the locationList
Collections.sort(listStr);
for (int i = listStr.size()-1; i >= 0; i--) {
Log.i("zhijianw", "remove"+listStr.get(i));
Log.i("zhijianw", "remove"+locationList.get(Integer.parseInt(listStr.get(i))).get("txtv_locationitem"));
String remLocation = locationList.get(Integer.parseInt(listStr.get(i))).get("txtv_locationitem").toString();
locationList.remove(Integer.parseInt(listStr.get(i)));
removeLocation(remLocation);
}
listStr = new ArrayList<String>();
locationsAdapter.notifyDataSetChanged();
}
});
My Adapter
public MyAdapter(Context context, List<HashMap<String, Object>> list, int resource, String[] from, int[] to) {
this.context = context;
this.list = list;
keyString = new String[from.length];
idValue = new int[to.length];
System.arraycopy(from, 0, keyString, 0, from.length);
System.arraycopy(to, 0, idValue, 0, to.length);
inflater = LayoutInflater.from(context);
init();
Log.i("zhijianw", "my adapter called");
}
public void init() {
isSelected = new HashMap<Integer, Boolean>();
for (int i = 0; i < list.size(); i++) {
isSelected.put(i, false);
}
}
#Override
public int getCount() {
Log.i("zhijianw", "get count called");
return list.size();
}
#Override
public Object getItem(int arg0) {
Log.i("zhijianw", "get item called");
return list.get(arg0);
}
#Override
public long getItemId(int arg0) {
return arg0;
}
#Override
public View getView(int position, View view, ViewGroup arg2) {
init();
Log.i("zhijianw", "get view called");
ViewHolder holder = null;
if (view == null) {
holder = new ViewHolder();
view = inflater.inflate(R.layout.location_item, null);
holder.tv = (TextView) view.findViewById(R.id.txtv_locationitem);
holder.cb = (CheckBox) view.findViewById(R.id.cb_locationitem);
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
HashMap<String, Object> map = list.get(position);
if (map != null) {
itemString = (String) map.get(keyString[0]);
holder.tv.setText(itemString);
}
holder.cb.setChecked(isSelected.get(position));
return view;
}
}
Set listview adapter
lv_menu = (ListView) menu_view.findViewById(R.id.lv_menu);
lv_menu.setAdapter(new ArrayAdapter<String>(this, R.layout.menu_item, R.id.txtv_menuItem, menuChoices));

The locationsAdapter does not appear to be getting set to the same adapter used by lv_menu.setAdapter() so that locationsAdapter.notifyDataSetChanged() is not invalidating lv_menu. Try lv_menu.invalidate() directly in your onClick() function.
I personally reload my list adapters from scratch whenever deleting items, especially when CheckBox items are involved, in order to keep things from getting out of sync.

Please check that the parameter transfered to the inflater (in the getView method) refer to the same parameter which was used when the adapter was intiated. In the case that they are not the same the getView will not be called without any further notification.
Zohar

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The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

Remove items from a Custom ListView (Android) - android

How do I create a neverending listview of list items with checkboxes that can be removed with a delete item button? The answer is below.

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