Under Onclick event trying to change activity

Question

I am working on Custom ListView for an assignment given to me. I have worked out a custom list view by using Base Adapter. I have a Button in the view by clicking on which I want new activity to be started. But I am getting error on run time. Please note that BUTTON is not the part of the listview, I mean its not repeating, Its placed only once at the top of the layout with Listview included.

public class mainActivity2 extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.item_list);

    ArrayList<ItemInfo> items = GetSearchResults();
    final ListView lv1 = (ListView) findViewById(R.id.mylistview);
   if(lv1==null){

        Log.d("error","ListView is null");
    }

    lv1.setAdapter(new itemBaseAdapter(this, items));
    final Button btnShowCart = (Button) findViewById(R.id.shCart);
    btnShowCart.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
              Intent myIntent = new Intent(v.getContext(), Cart.class);
               startActivity(myIntent);         

        }
    });   


}

private ArrayList<ItemInfo> GetSearchResults() {

    ArrayList<ItemInfo> items=new ArrayList<ItemInfo>();
    items.add(new ItemInfo("pizza",R.drawable.icon,15));
    items.add(new ItemInfo("chicken",R.drawable.icon,10));
    items.add(new ItemInfo("slice",R.drawable.icon,12));
    items.add(new ItemInfo("hoha",R.drawable.icon,20));

    return items;
}

}

StartActivity(myIntent) is the line I am getting error at run time. Here is the code to it, I will be grateful if somebody shed light on the problem.

Try this Intent myIntent = new Intent(mainActivity2.this, Cart.class); — Nitin, Mar 20 '12 at 10:42

score 4 · Accepted Answer · edited May 23 '17 at 12:08

4

Did you add Cart.class to manifest file? What is error log?

edited May 23 '17 at 12:08

Community

1
1

answered Mar 20 '12 at 10:41

Dmytro Danylyk

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score 1 · Answer 2 · answered Mar 20 '12 at 10:43

1

Rather than new Intent(v.getContext, Cart.class), try:

Intent myIntent = new Intent(this, Cart.class);

answered Mar 20 '12 at 10:43

Sparky

8,437
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See also dmytrodanylyk's suggestion about checking AndroidManifest.xml. – Sparky Mar 20 '12 at 10:45

score 1 · Answer 3 · answered Mar 20 '12 at 10:47

1

1) Maybe the problem lays in the v.getContext() method. Try this:

Intent intent = new Intent(mainActivity2.this, Cart.class);
startActivity(intent);

2) Maybe you did not register 'Cart' activity in the Manifest file.

answered Mar 20 '12 at 10:47

Taras Feschuk

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score 0 · Answer 4 · edited Nov 17 '12 at 00:33

0

You can just replace v.getContext() with mainActivity2.this.

edited Nov 17 '12 at 00:33

Sam

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answered Mar 20 '12 at 10:43

Saurabh Verma

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score 0 · Answer 5 · answered Mar 20 '12 at 10:47

0

First, check whether your second activity has been added to your Manifest.xml file. And, after try with this code --

Intent i = new Intent(mainActivity2.this, Cart.class);
startActivity(i);

Maybe, it will helpful to you.

answered Mar 20 '12 at 10:47

Praveenkumar

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Under Onclick event trying to change activity

5 Answers5