Question

I want to change text from the textview when I was click the next button. I have try this code but could not get right direction. would you please fix it.

public class StringTestActivity extends ListActivity {
TextView t;
int count=0;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    t=(TextView)findViewById(R.id.text);

    Resources res = this.getResources();
    final String[] capital = res.getStringArray(R.array.Cap);

       //ArrayAdapter<String> n=new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,capital);
       //setListAdapter(n);
    Button next=(Button)findViewById(R.id.btnNext);
    next.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            if(count<capital.length-1)
            t.setText(capital[count]);
            count++;
        }

    });

}
}

Edit: I have faced this error message.

again edited: main.xml

<?xml version="1.0" encoding="utf-8"?>
  <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:orientation="vertical" android:layout_width="fill_parent"
   android:layout_height="fill_parent">

   <TextView android:id="@+id/list" android:layout_width="fill_parent"
    android:layout_height="wrap_content" android:hint="text" />

   <Button android:text="Next" android:id="@+id/btnNext"
 android:layout_width="wrap_content" android:layout_height="wrap_content">   </Button>        

</LinearLayout>

res/string/array.xml

  <?xml version="1.0" encoding="utf-8"?>
 <resources>
  <string-array name="Cap">
    <item>A</item>
    <item>B</item>
    <item>C</item>
    <item>D</item>
  </string-array>
 </resources>

Answer 1

If you are not using ListView then implement Activity not ListActivity. So make this change

public class StringTestActivity extends Activity {

Also import android.app.Activity