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Android Android Lists and Adapters (2015) Standard ListViews Using an ArrayAdapter

Posted by MUZ140663 Question Ngwarati
MUZ140663 Question Ngwarati
11,782 Points

Inside the onCreate() method, declare an ArrayAdapter named adapter and initialize it with its constructor. Remember tha

Inside the onCreate() method, declare an ArrayAdapter named adapter and initialize it with its constructor. Remember that ArrayAdapter is a generic, meaning that the type of the items in the array needs to be specified in angle brackets. The constructor takes three parameters: 1) the context (use this), 2) the layout (use android.R.layout.simple_list_item_1) and 3) the array to adapt (use mApps).

AppListActivity.java 
String[] mApps = {"Instagram", "Pinterest", "Pocket", "Twitter" };
ArrayAdapter<String> adopter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mApps);

setListAdapter(adopter);

1 Answer

Steve Hunter
Steve Hunter
57,712 Points
Steve Hunter
Steve Hunter
57,712 Points

You need to be inside onCreate() with your new code - not under the array declaration:

public class AppListActivity extends ListActivity {

    public String[] mApps = {
        "Instagram",
        "Pinterest",
        "Pocket",
        "Twitter"
    };

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_app_list);
// YOUR CODE HERE
      ArrayAdapter adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mApps);
      setListAdapter(adapter);
    }
}

Steve.