我有ListView将所有数据保存到数据库.对于添加我有简单的按钮和textBox添加到数据库,并显示到listView.现在我想要长项目点击(按住项目)将从列表中删除所选项目.怎么可能做到这一点(实际上是长期点击的方法).
这是当前代码：
import java.util.List;
import java.util.Random;
import android.app.ListActivity;
import android.os.Bundle;
import android.text.Editable;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ListView;
public class Announce extends ListActivity{
private CommentsDataSource datasource;
EditText edit;
ListView list;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.announce);
datasource = new CommentsDataSource(this);
datasource.open();
List<Comment> values = datasource.getAllComments();
ArrayAdapter<Comment> adapter = new ArrayAdapter<Comment>(this,android.R.layout.simple_list_item_1,values);
setListAdapter(adapter);
}
public void onClick(View view) {
@SuppressWarnings("unchecked")
ArrayAdapter<Comment> adapter = (ArrayAdapter<Comment>) getListAdapter();
Comment comment = null;
switch (view.getId()) {
case R.id.add:
edit = (EditText)findViewById(R.id.editTxt);
Editable txt=(Editable)edit.getText();
String input = txt.toString();
comment = datasource.createComment(input);
adapter.add(comment);
break;
}
adapter.notifyDataSetChanged();
}
@Override
protected void onResume() {
datasource.open();
super.onResume();
}
@Override
protected void onPause() {
datasource.close();
super.onPause();
}
}
