Android: Listview Crashes

I'm using android listview and its working perfectly fine. my implementation as below ListView listview = (ListView)findViewById(R.id.list); setListAdapter(new ArrayAdapter

Solution 1:

Well from you code where you are using

setListAdapter(adapter);

indicates that you are using ListActivity, and while using ListActivity you get your list as follow:

listView = this.getListView();

or you can use

listView = this.findViewById(android.R.id.list);

and you are using

listView = this.findViewById(R.id.list);

which is wrong in case of ListActivity, and ListView cannot be found and results in NullPointerException.

Solution 2:

Try like this.

Public classABCDimplementsOnItemClickListener{
          ListView listview;//class varible

           listview = (ListView)findViewById(R.id.list);
           setListAdapter(newArrayAdapter<String>(MyIncidentActivity.this,
           R.layout.row_incident, R.id.label_incident, db_results));
           listview.setOnItemClickListener(this);

        @OverridepublicvoidonItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
        // TODO Auto-generated method stub

    }

}

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