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Android changing activity issues, crashes on selection

So, what I'm trying to do is have a main menu and then press a button, it loads a list of countries.
now I've seemed to have set it up right, no errors I can see, but the app crashes before I load this activity (the lists) the main menu is fine, and I added another button with a blank activity which loads just fine.
logCat is giving me these errors
E/ArrayAdapter: You must supply a resource ID for a TextView
D/AndroidRuntime: Shutting down VM
java.lang.IllegalStateException: ArrayAdapter requires the resource ID to be a TextView
and I'm not sure what it's asking for beyond the textView
heres my XML:
<ListView
android:id="#+id/text1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="#f897"
android:dividerHeight="1dp"
android:listSelector="#0f0"/>
and my Java:
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class countries extends AppCompatActivity {
ListView simpleList;
String countryList[] = {"India", "China", "Australia", "Portugal", "USA","England", "NewZealand", "Germany", "France","South Africa"};
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_countries);
simpleList = (ListView)findViewById(R.id.text1);
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this, R.layout.activity_countries, countryList);
simpleList.setAdapter(arrayAdapter);
}
}
any help?

change:
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this, R.layout.activity_countries, countryList);
to:
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,countryList);
your code not work because you use default ArrayAdapter with custom item layout

You array adapter expects the layout to be a TextView, but it look like R.layout.activity_countries is an activity layout?

You should create a custom adapter and custom view for each listview's row. Check it here: Custom Adapter for List View

Android ListView Tutorial with onclick and images

i want to make a listview having images on each row and if one item is clicked, user will be taken to another activity
i have 26 activities-
Activity_a
Activity_b
Activity_c
Activity_d
and so on...
and i want to have alphabet images at each row (i already have the images)
i found this tutorial on http://www.ezzylearning.com/tutorial.aspx?tid=1659127
Here is how my app should look like http://www.imagesup.net/?di=413818360350
And here is my .java file
package com.Rohit.MyApp;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
public class MainActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ListView listView1 = (ListView) findViewById(R.id.listView1);
String[] items = { "Milk", "Butter", "Yogurt", "Toothpaste", "Ice Cream" };
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, items);
listView1.setAdapter(adapter);
}
}

You should only use one activity and start it with a bundle. 26 Activities is just plain wrong.
You can use an OnItemSelectedListener on the List view and start an activity with:
Intent i = new Intent(this,ABCActivity.class);
i.putExtra("LETTER",selectedLetter);
startActivity(i);
That's assuming you figured out how to get the selectedLetter.

I think you are looking for a good tutorial link on Custom Array Adapters, here you go. And then just setOnClickListener for the image view.
For good coding practice, don't ever use so many activities. Consider reusing some of them or use Fragments

Extracting values from strings.xml

I have a doubt.I have an activity which contains an autocompletetextview.The contents for autocompletetextview have been declared in strings.xml file as a string array.I hav one more string array in my strings.xml file.What i want is that when i select an item from autocompletetextview it should display a value from the second string array in the form of a toast.Is it possible.Plz help me

For Array::
String[] myarray =getResources().getStringArray(R.array.array);
For String::
String myString =getResources().getString(R.string.str);

Check with this,
package mytest.projects;
import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
public class example extends ListActivity {
String[] mTestArray;
/** Called when the activity is first created. */
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Create an ArrayAdapter that will contain all list items
ArrayAdapter<String> adapter;
mTestArray = = getResources().getStringArray(R.array.testArray);
/* Assign the name array to that adapter and
also choose a simple layout for the list items */
adapter = new ArrayAdapter<String>(
this,
android.R.layout.simple_list_item_1,
mTestArray);
// Assign the adapter to this ListActivity
setListAdapter(adapter);
}
}

Please explain Array Adapters and their purpose. Even better [closed]

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Better yet can someone explain this program point by point?
package com.paad.todolist;
import java.util.ArrayList;
import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnKeyListener;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ListView;
public class ToDoList extends Activity {
/** Called when the activity is first created. */
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Inflate your view
setContentView(R.layout.main);
// Get references to UI widgets
ListView myListView = (ListView)findViewById(R.id.myListView);
final EditText myEditText = (EditText)findViewById(R.id.myEditText);
// Create the array list of to do items
final ArrayList<String> todoItems = new ArrayList<String>();
// Create the array adapter to bind the array to the listview
final ArrayAdapter<String> aa;
aa = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1,
todoItems);
// Bind the array adapter to the listview.
myListView.setAdapter(aa);
myEditText.setOnKeyListener(new OnKeyListener() {
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_DOWN)
if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER)
{
todoItems.add(0, myEditText.getText().toString());
aa.notifyDataSetChanged();
myEditText.setText("");
return true;
}
return false;
}
});
}
}

ToDoList is the activity that defines the UI elements of the screen that user sees.
UI elements of the screen are defined in the layout /res/layout/main.xml
One of the UI element in the layout main.xml is a ListView whose ID is myListView
ListView can be something that acts as a container for list items. So all list view needs to know is, how many items are in the list, and how the each list item looks like?
An adapter is something that knows about the list items and how to represent or draw each list item on the screen.
Above example makes use of ArrayAdapter and its constructor takes 3 parameters having information about the list items
final ArrayAdapter<String> aa;
aa = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1,
todoItems);
First argument is Context to access system services and resources ( you need layout inflater to create list item view )
Second argument defines the layout of the list that defines how the list item appears in listview. Here layout android.R.layout.simple_list_item_1 which is defined by framework is used.
Third argument is the information about the list item, typically this information is used to create view for the list item.
Finally created Adapter is given to the ListView
myListView.setAdapter(aa);
Now ListView calls the functions of Adapter to get the views of list item and populates in the container.
If the list items are changed ( here todo list ) Adapter can let the ListView know about it by calling notifyDataSetChanged.
aa.notifyDataSetChanged();
You can have a look at the implementation of ArrayAdapter to get more clarity.
Hope this helps you!

In simple terms, an Adapter is a collection handler that returns each item in the collection as a view. ArrayAdapter is one of many adapters available in Android. Others include, ListAdapter, GalleryAdapter, CursorAdapter, etc. Have a look at Android references

An Adapter object acts as a bridge between an AdapterView and the underlying data for that view. The Adapter provides access to the data items. The Adapter is also responsible for making a View for each item in the data set. Adapter

Android: how to set click events on ListView?

I'm looking to be able to open up a new view or activity when I click on an item in my ListView.
Currently I have a list of restaurants, and when i click on a particular restaurant I want it to open up another screen that will show its address, google map etc.
What I need help with is knowing how to set click events on the items in the list.
At the moment I dont have a database of the items, they're just Strings.
Can someone help me with getting me to this stage?
Thanks alot.
package com.example.androidrestaurant;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import android.app.ListActivity;
public class Dundrum extends ListActivity {
TextView selection;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setListAdapter(new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, DUNDRUM));
getListView().setTextFilterEnabled(true);
}
static final String[] DUNDRUM = new String[] {
"Ananda",
"Brambles Cafe", "Brannigans", "Buona Sera",
"Cafe Mao", "Cafe Mimo",
"Dante", "Douglas & Kaldi Terrace Cafe",
"Eddie Rockets",
"Frango's World Cuisine",
"Nando's",
"Overends Restaurant # Airfield House",
"Pizza Hut",
"Roly Saul",
"Siam Thai","Smokey Joes","Sohag Tandoori",
"TGI Friday","The Rockfield Lounge", "Winters Bar" };
};

You need to do like this :
// Store your listview into local variable
ListView lv = getListView();
lv.setTextFilterEnabled(true);
// Bind onclick event handler
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// Put in your code here, what you wanted trigger :)
}
});

If you are using the ListView in a ListActivity, override onListItemClick(). Otherwise, use setOnItemClickListener() with the ListView. In either case, you are given a position that is the index into your array.
See here for an sample project.