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Sort ListView in ListActivity

I've created a ListActivity (yeah, the one without an XML layout) which displays the values got from an ArrayList<String>, via an adapter.
The fact is that the last String added to the ArrayList, is the latest to appear on the ListView aswell, instead I want to sort the ListView so that the last item added will be the first one on top in the ListView, how to do it?
Look, this is a snippet of my application, about the onCreate() method of the ListActivity:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent = getIntent();
ArrayList<String> history = intent.getStringArrayListExtra("HistoryList");
ListView historyList = getListView();
ArrayAdapter<String> listAdapter = new ArrayAdapter<String>( this, android.R.layout.simple_list_item_1, history);
historyList.setAdapter(listAdapter);
}

Nothing complicated. You just needed to reverse the list history.
Collections.reverse(history);
You should read a little about the theory of Java and learn how to look for. Otherwise, nothing good is not over. The code would look like this:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent = getIntent();
ArrayList<String> history = intent.getStringArrayListExtra("HistoryList");
Collections.reverse(history);
ListView historyList = getListView();
ArrayAdapter<String> listAdapter = new ArrayAdapter<String>( this, android.R.layout.simple_list_item_1, history);
historyList.setAdapter(listAdapter);
}

how to do it?
Re-order history to be in the order that you want, such as via Collections.reverse().

Try to write a Comparator to sort the string.

Android Program (Adding items to ListView in another activity)

I am curious how I would go about adding an an editText variable to a list in another activity. I have created an arrayList that names are stored into as they are entered in the editText line. These are stored in the nameList variable in the class StartingActivity. How would i go about adding and showing these names into a ListView in another activity and class called ListActivity as shown. Thank you. Also, how do i refractor the names of classes and files without it just basically not making my program runable.
Code:
Class StartingActivity:
public void onClick_btnConfirm {
EditText editName = (EditText) findViewById(R.id.editName);
TextView textOutput = (TextView) findViewById(R.id.textOutput);
Intent intentList = new Intent(StartingActivity.this, ListActivity.class);
if(editName.length()!=0) {
nameList.add(editName.getText().toString());
editName.setText("");
}
//intentList.putExtra("Name", editName.toString());
startActivity(intentList);
}
Class ListActivity:
public class ListActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_list);
ListView listView = (ListView) findViewById(R.id.listAthletes);
final StartingActivity nameList = new StartingActivity();
nameList.getNameList();
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, nameList.getNameList());
listView.setAdapter(arrayAdapter);
arrayAdapter.notifyDataSetChanged();
}
}

You cannot run findviewbyid() for an id in another Activity.This answer might be of help to you. If that is not what you really want to go with, you can do two things:
Send Intents with the string.
Use a sharedPreference and write the string to a sharedPreference. SharedPreferences also have an OnChangeListener, so you will be able know if the preference has changed. In the onResume() of that activity , you can just read from the sharedPreference, and update the UI
Also take a look at AsyncTask here
As mentioned , you can also use the SQLite Database

Add tab view android

I have made a simple contact apps and now I wish to add tab view to this app. I am following the tutorial here. Below is part of the source code for my MainActivity.jave:
public class MainActivity extends ListActivity {
private ListView contactListView;
private CursorAdapter contactListViewAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
contactListView = getListView(); // get ListView id
contactListView.setOnItemClickListener(viewContactListListener);
String[] from = new String[] { "familyName" }; // built an String array
// named "from"
int[] to = new int[] { R.id.contactTextView };
contactListViewAdapter = new SimpleCursorAdapter(MainActivity.this,
R.layout.contact_list_item, null, from, to);
setListAdapter(contactListViewAdapter); // set adapter
}
I tried to change "public class MainActivity extends ListActivity" to "public class MainActivity extends TabActivity implements OnTabChangeListener{". However, I get the error "The method getListView() is undefined for the type MainActivity" and other similar errors. I need suggestions on how to fix this. Thanks for any help.

ListActivity provides some help methods to manage ListView so if you want to change your parent activity from ListActivity to TabActivity you need to handle ListActivity behaviour yourself.
Basically you need to get and store somewhere the ListView object. Something like mListView = (ListView) findViewById(android.R.id.list) on your onCreate method and then implement missing method
ListView getListView()
{
return mListView;
}
Also setting your adapter will be a bit different. Instead of calling setListAdapter(contactListViewAdapter); // set adapter there should be contactListView.setAdapter(contactListViewAdapter);

How to use findViewById to get a ListView

I don't know why this code is using findViewById to get the list view. Isn't the list view native to the ContentView that I set earlier? If not how do I set up a ListView for that Content View? I really just want to know if the setting up of the list view is necessary.
setContentView(R.layout.imgp_activity_home);
final String[] values = new String[] {"No Docs", "Pending", "Processed"};
final ListView listview = (ListView) findViewById(R.id.???);
final ArrayList<String> list = new ArrayList<String>();
for (int i = 0; i<values.length; i++) {
list.add(values[i]);
...
listview.setAdapter((ListAdapter) adapter);
listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
...
I feel like I should be able to add the listener to the array list somehow.
This is the tutorial I used to get me started.

in you layout floder about the activity layout the XML file called imgp_activity_home.xml.in this file you may have the tags about＜listview＞. set tags like ＜listview android:id="#+id/listname"＞.then in the Java file you can findviewbyid(r.id.listname).if you didn't declare the listview tag.you must new a listview object in you code.

From the example you should write
final ListView listview = (ListView) findViewById(R.id.listview);

Items in a ListActivity

In my ListActivity I have three different options that are clickable. In my "row.xml" I have place an ImageView, but am not sure how to implement it into my Activity so that each selectable item has a different image. Would it be another Adapter?
Here is my ListActivity
public class StreamCasts extends ListActivity {
private static final String[] items={ "item1", "item2", "item3"
};
public void onCreate(Bundle icicle){
super.onCreate(icicle);
setContentView(R.layout.heroselect);
setListAdapter(new ArrayAdapter<String>(this,
R.layout.row, R.id.label,
items));
}

You'll need to create a custom ArrayAdapter that lets you customize the view returned on the overrided getView.
Take a look at http://www.softwarepassion.com/android-series-custom-listview-items-and-adapters/ but a general search for 'custom arrayadapter' will give you the start of this.
Get used to it as this is a very common pattern with complicated listviews.