我创建了一个deleteItem方法，该方法必须删除该行，但是在单击按钮后，它会继续存在，如果再次尝试，则会出现异常。
public class WITHistory extends WITBase implements OnItemClickListener{
private ListView listView;
public int del;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.history_wit);
listView = (ListView) findViewById(R.id.listSearch);
HistoryAdapter adapter = new HistoryAdapter(this, searches);
listView.setAdapter(adapter);
listView.setOnItemClickListener(this);
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int pos,long id) {
Toast.makeText(this, "You selected Row ["+pos+"]\n"+
"For donation data ["+searches.get(pos)+"]\n"+"With ID of ["+id+"]", Toast.LENGTH_LONG).show();
del = pos;
}
public void deleteItem(View v) {
searches.remove(del);
}
}
声明您的适配器为班级成员
并添加
public void deleteItem(View v) {
searches.remove(del);
adapter.notifyDataSetChanged ().;
}
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