Activity listener

Question

i want to open new activity as i click at my list item. here is my code for main java class. please help me. MainActivity.java

public class MainActivity extends Activity {
private ListView myLV;
private String[] stringArray;
ArrayAdapter<String> myAdapter;
public Context context;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    stringArray = new String[10];
    for(int i=0; i<10; i++)
    {
        stringArray[i] = "String" + i;

    }

    myLV = (ListView)findViewById(R.id.ListView);

    MyAdapter adp = new MyAdapter(this, stringArray);
    myLV.setAdapter(adp);
}


private class MyAdapter extends ArrayAdapter<Object> {
    private LayoutInflater inflater;

    public MyAdapter(Activity activity, String[] items){
        super(activity, R.layout.row_tweet, items);
        inflater = activity.getWindow().getLayoutInflater();
    }
    public View getView(int position, View convertView, ViewGroup parent) {

        if(convertView==null)
        {
            convertView=inflater.inflate(R.layout.row_tweet, parent, false);
        }

        return convertView;
    }
    @Override
    public int getCount(){
        return 10;
        }

    }
}

if i change public class MainActivity extends Activity to ListActivity then my application crashes and show unfortunately stopped working error. I really don't know how to fix it.

score 0 · Answer 1 · answered Jan 18 '16 at 15:48

If I'm getting you that's what you want:

convertView.setOnClickListener(new OnClickListener() {
    @Override
    public void onClick( View view ) {
        Intent newActivityIntent = new Intent( MainActivity.this, OtherActivity.class );
        startActivity(newActivityIntent); 
    }
});

Hope it helps.

score 0 · Answer 2 · edited Jan 18 '16 at 16:58

You should use something like this:

public class MainActivity extends Activity {

private ListView myLV;
private String[] stringArray;
ArrayAdapter<String> myAdapter;
public Context context;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
stringArray = new String[10];
for(int i=0; i<10; i++)
{
    stringArray[i] = "String" + i;

}

myLV = (ListView)findViewById(R.id.ListView);

MyAdapter adp = new MyAdapter(this, stringArray);
myLV.setAdapter(adp);

myLV.setOnItemClickListener(new OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View view,
                int position, long id) {
            //Your code by position item...
        }
    });
}


private class MyAdapter extends ArrayAdapter<String> {

private Context context;

public MyAdapter(Context context, String[] items){
    super(activity, R.layout.row_tweet, items);
    this.context = context;
}

public View getView(int position, View convertView, ViewGroup parent) {

    LayoutInflater inflater = (LayoutInflater) context.
      getSystemService(Context.LAYOUT_INFLATER_SERVICE);

    return inflater.inflate(R.layout.row_twee, parent, false);
}

@Override
public int getCount(){
    return 10;
}

}
}

Good luck!

score 0 · Answer 3 · edited May 23 '17 at 11:44

0

If you want to change the layout of a ListActivity you still can with setContentView() method from Activity. As long as there is a ListView called @android:id/list somewhere in your View. The ListActivity will still work.

See here

edited May 23 '17 at 11:44

Community

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answered Jan 18 '16 at 16:01

Sazzad Hissain Khan

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Activity listener

3 Answers3