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Android listview contains buttons that shouldn't be there

I have an issue with my ListView where for some unknown reason each element has a button that shouldn't have. How could i go about removing these buttons?
Android emulator showing the buttons in the listview
The issue seems to be with my onPostExecute method for an async task.
#Override
protected void onPostExecute(String pResult) {
//Populate the list view?
ListView listView = (ListView) findViewById(R.id.DownloadablePuzzlesList);
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(getApplicationContext(),
R.layout.activity_download, R.id.DownloadablePuzzlesText, PuzzleNames);
listView.setAdapter(arrayAdapter);
}
After hours of trying to figure this issue out i'm unable to find the solution to my issue any help would be appreciated.

Your R.layout.activity_download must be having button.
Instead of:
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(getApplicationContext(), R.layout.activity_download, R.id.DownloadablePuzzlesText, PuzzleNames);
Do:
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getApplicationContext(),
android.R.layout.simple_list_item_1, android.R.id.text1, PuzzleNames)

Cannot resolve constructor ArrayAdapter (Listview , fragment )

I want to load a listview in my fragment and the problem with the adapter is the error - Cannot resolve constructor ArrayAdapter.
This is the onCreateView method in my class :
public class AndroidGUIModifier implements IMyComponentGUIModifier, IFragmentEvents {
#Override
public void onCreateView() {
tv1 = (TextView) fragment.findViewById("xtv1");
tv2 = (TextView) fragment.findViewById("xtv2");
lv=(ListView) fragment.findViewById("xdevices") ;
mydevices = new ArrayList<String>();
ArrayAdapter<String> adapter = new ArrayAdapter<String>(AndroidGUIModifier.this,android.R.layout.simple_list_item_1,mydevices);// the problem here : Cannot resolve constructor ArrayAdapter
lv.setAdapter(adapter);
}
}

Obtain the Context from the fragment and just pass it to the ArrayAdapter :
ArrayAdapter<String> adapter = new ArrayAdapter<String>(fragment.getContext(), android.R.layout.simple_list_item_1, mydevices);

If it is inside a fragment, you need to pass context for the first argument usually like this I think?
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, mydevices);
If you are using AndroidGUIModifier as your fragment, can you try extending the Fragment class?
public class AndroidGUIModifier extends Fragment implements IMyComponentGUIModifier, IFragmentEvents {

There are two errors, I can not solve it（ListView）

Move your adapter initialization inside onCreate. You need to set the adapter to the ListView using setAdapter. Call noftifyDataSetChanged after populating the dataset arr.
Try this code,
private MyAdapter ma;
onCreate(){
...
setContentView(R.layout.activty_main2);
lv = (ListView) findViewById(R.id.lv_1);
ma = new MyAdapter(this, arr);
lv.setAdapter(ma);
initData();
}
initData(){
for(;;){
...
arr.add(n);
}
ma.noftifyDataSetChanged();
}

You not having any blank constructor in MyAdapter,
you have to pass context and ArrayList to the adapter like,
MyAdapter ma = new MyAdapter(Main2Activity.this,arr);

Each ListView item opens layout with different text

How my onClickListener should look like if I need to open layout with different text for each ListView item and I have a lot of ListView items (about 50)? Do I need to create new activity or layout file for each new item? Is it possible to use one activity for all items?
This is my MainActivity.java:
public class MainActivity extends Activity {
// ListView
private ListView listView;
// Adapter
ArrayAdapter<String> adapter;
String items [];
// ArrayList
ArrayList<HashMap<String, String>> productList;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//ListView data in res/values/arrays.xml
items =getResources().getStringArray(R.array.items);
listView = (ListView) findViewById(R.id.list_view);
adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.listItem, items);
listView.setAdapter(adapter);
listView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
/*
I know that I can put here I can put something like this:
case 0 :Intent appInfo = new Intent(About.this, Activity1.class);
startActivity(appInfo);
break;
case 1 :Intent appInfo = new Intent(About.this, Activity2.class);
startActivity(appInfo);
break;
case 2 :Intent appInfo = new Intent(About.this, Activity3.class);
startActivity(appInfo);
break;
BUT DO I NEED REPEAT THIS MORE THAN 20 TIMES?!
*/
}
});
}
}
Some system apps like Settings has a lot of ListView and layouts and I don't believe that it has new activity for each layout.

Create a new single activity and pass the text to that activity.
Something like:
Intent intent = new Intent(About.this, <NEW_ACTIVITY>.class);
intent.putExtra("text_key", items[position]);
startActivity(intent);
on the other activity, retrieve the text like this (can be on the onCreate method):
String text = getIntent().getExtras().getString("text_key");

arrayadapter for spinner keep error

I want to make spinner inside my Google Map class so i can change the view of googlemaps like HYBRID, SATELLITE so on.. I make a this spinner on fragment inside of fragment.
when i declare arrayaddapter it keep show "Unfortunately, --- has stopped"
public class GMaps extends Fragment {
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
View v = inflater.inflate(R.layout.popup_map, null, false);
sview = (Spinner)getActivity().findViewById(R.id.spinner1);
List<String> list = new ArrayList<String>();
list.add("list 1");
list.add("list 2");
list.add("list 3");
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this.getActivity(), android.R.layout.simple_spinner_item, list);
dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
sview.setAdapter(dataAdapter);
// ..
I think it is because the parameter context = this.getActivity()... I have try this.getView(), getActivity(), v.getContext, nothing works.

First of all you should change this
sview = (Spinner)getActivity().findViewById(R.id.spinner1);
to
sview = (Spinner)v.findViewById(R.id.spinner1);
it's becoz your Spinner view belong to you inflated layout view.
then try to set adapter like:
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(getActivity().getApplicationContext(), android.R.layout.simple_spinner_item, list);
dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
sview.setAdapter(dataAdapter);

//your spinner is in popup_map.xml so you need to do
sview = (Spinner)getActivity().findViewById(R.id.spinner1);
instead of getActivity() you need to use View v
sview = (Spinner)v.findViewById(R.id.spinner1);