Java 已删除的项目仍显示在结果页上。
我可以毫无问题地编辑或删除单个项目,但当我在编辑项目后单击“删除”按钮时,即使该项目已从数据库中删除,该项目仍会显示在列表视图中 ListViewActivity.javaJava 已删除的项目仍显示在结果页上。,java,android,Java,Android,我可以毫无问题地编辑或删除单个项目,但当我在编辑项目后单击“删除”按钮时,即使该项目已从数据库中删除,该项目仍会显示在列表视图中 ListViewActivity.java public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.all_requests); requestsList = new ArrayL
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.all_requests);
requestsList = new ArrayList<HashMap<String, String>>();
new LoadAllRequests().execute();
ListView lv = getListView();
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
String request_id = ((TextView) view.findViewById(R.id.request_id)).getText().toString();
// Starting new intent
Intent in = new Intent(getApplicationContext(),
ViewRequestActivity.class);
// sending rid to next activity
in.putExtra(TAG_ID, request_id);
// starting new activity and expecting some response back
startActivityForResult(in, 55);
}
});
}
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.all_请求);
requestsList=newarraylist();
新建LoadAllRequests().execute();
ListView lv=getListView();
lv.setOnItemClickListener(新的OnItemClickListener(){
public void onItemClick(AdapterView父级、视图、,
内部位置,长id){
//从选定的ListItem获取值
String request_id=((TextView)view.findviewbyd(R.id.request_id)).getText().toString();
//开始新的意图
Intent in=新的Intent(getApplicationContext(),
ViewRequestActivity.class);
//将rid发送到下一个活动
in.putExtra(标签ID、请求ID);
//开始新的活动并期望得到一些响应
startActivityForResult(in,55);
}
});
}
您应该使用
您必须再次将适配器签名到listview您还可以尝试刷新活动。我相信是ListViewActivity.restart()
yourListView.invalidateViews();