我正在显示一个标签，其中有两个标签Category1和Category2。 根据category1和category2表中的数据填充列表。这样可以正常工作但是要使列表视图中的项目以某种方式响应列表视图上的点击是我所坚持的。例如：
当用户长按listview中的特定行时，我试图使复选框变为可见并检查。我正在尝试编码，但我不知道从哪里开始。没有具体询问有关此主题的问题。以下是我尝试过的代码。
FragmentClass
public class CategoryFragment extends Fragment{
private ListView listView;
private String currentTabTag;
private CategoryAdapter1 categoryAdapter1;
private CategoryAdapter2 categoryAdapter2;
private MergeAdapter adapter = new MergeAdapter();
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// inflate the layout for this fragment
View view = inflater.inflate(R.layout.activity_category_fragment_list, container, false);
// get references to widgets
listView = (ListView) view.findViewById (R.id.ListView);
// get the current tab
TabHost tabHost = (TabHost) container.getParent().getParent();
currentTabTag = tabHost.getCurrentTabTag();
// refresh the category list view
refreshCategoryList();
listView.setOnItemLongClickListener(this);
// return the view
return view;
}
public void refreshCategoryList() {
// get category list for current tab from database
Context context = getActivity().getApplicationContext();
CategoryDatabase categoryDatabase = new CategoryDatabase(context);
if(currentTabTag.equals("Category 1")) {
ArrayList<Category1> category1ArrayList = categoryDatabase.getAllCategory1(currentTabTag);
// create adapter and set it in the ListView widget
categoryAdapter1 = new Category1Adapter(context, category1ArrayList);
adapter.add(Category1Adapter);
}
else if(currentTabTag.equals("Category 2"))
{
ArrayList<Category2> category2ArrayList = categoryDatabase.getAllCategory2(currentTabTag);
// create adapter and set it in the ListView widget
categoryAdapter2 = new categoryAdapter2(context, category2ArrayList);
adapter.add(categoryAdapter2);
}
listView.setAdapter(adapter);
}
@Override
public void onResume() {
super.onResume();
refreshTaskList();
}
@Override
public boolean onItemLongClick(AdapterView<?> adapterView, View view, int i, long l) {
ItemsListLayout itemsListLayout = new ItemsListLayout(context);
switch (view.getId()) {
case R.id.listView: {
itemsListLayout.setMyListItems();
Toast.makeText(context,"Why cant I be called?",Toast.LENGTH_SHORT).show();
//registerForContextMenu(view);
}
/*default:
Intent intent = new Intent(context, MyCategoryAddEdit.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
//intent.putExtra("categoryId", category.getId());
intent.putExtra("editMode", true);
context.startActivity(intent);
break;*/
}
return false;
}
}
activity_category_fragment_list
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
xmlns:android="http://schemas.android.com/apk/res/android">
<ListView
android:id="@+id/prescriptorsListView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:longClickable="true"
android:descendantFocusability="blocksDescendants">
</ListView>
</LinearLayout>
ItemsListLayout
public class ItemsListLayout extends RelativeLayout implements View.OnCreateContextMenuListener {
private CheckBox completedCheckBox;
private TextView nameTextView;
private TextView notesTextView;
private ListView listView;
private CategoryDatabase categoryDatabase;
private Context context;
public ItemsListLayout(Context context) { // used by Android tools
super(context);
}
public ItemsListLayout(Context context, Prescription p) {
super(context);
// set context and get db object
this.context = context;
categoryDatabase = new CategoryDatabase(context);
// inflate the layout
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inflater.inflate(R.layout.activity_my_category_items_list_layout, this, true);
// get references to widgets
completedCheckBox = (CheckBox) findViewById(R.id.completedCheckBox);
completedCheckBox.setVisibility(GONE);
nameTextView = (TextView) findViewById(R.id.nameTextView);
notesTextView = (TextView) findViewById(R.id.notesTextView);
//listView = (ListView) findViewById(R.id.listView);
// set listeners
//listView.setOnItemLongClickListener(this);
// set task data on widgets
setCategory1(p);
}
public void setCategory1(setCategory1 p) {
setCategory1 = p;
nameTextView.setText(setCategory1.getCategory1Name());
// Remove the notes if empty
if (setCategory1.getMedicineName().equalsIgnoreCase("")) {
notesTextView.setVisibility(GONE);
}
else {
notesTextView.setText(setCategory1.getDescriptionName());
}
}
/*@Override
public boolean onItemLongClick(AdapterView<?> adapterView, View view, int i, long l) {
switch (view.getId()) {
case R.id.prescriptorsListView:
completedCheckBox.setVisibility(VISIBLE);
completedCheckBox.setChecked(true);
break;
default:
Intent intent = new Intent(context, MyCategoryAddEdit.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
//intent.putExtra("categoryId", category.getId());
intent.putExtra("editMode", true);
context.startActivity(intent);
break;
}
return false;
}
*/
public void setMyListItems()
{
completedCheckBox = (CheckBox) findViewById(R.id.completedCheckBox);
completedCheckBox.setVisibility(VISIBLE);
completedCheckBox.setChecked(true);
}
@Override
public void onCreateContextMenu(ContextMenu contextMenu, View view, ContextMenu.ContextMenuInfo contextMenuInfo)
{
super.onCreateContextMenu(contextMenu);
//MenuInflater inflater = this.context.
}
}
activity_my_category_items_list_layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/relativeLayoutTaskItem"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="false"
android:descendantFocusability="blocksDescendants"
android:focusable="false"
android:focusableInTouchMode="false">
<CheckBox
android:id="@+id/completedCheckBox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_margin="5dp"
android:button="@drawable/btn_check"
android:textColor="#ffffff"
android:longClickable="true"
android:focusable="false"
android:clickable="false"
android:focusableInTouchMode="false"/>
<TextView
android:id="@+id/nameTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/completedCheckBox"
android:layout_alignBottom="@+id/completedCheckBox"
android:layout_toRightOf="@+id/completedCheckBox"
android:text=""
android:textColor="@android:color/white"
android:textSize="20dp"
android:textStyle="bold"
android:longClickable="true"
android:focusable="false"
android:clickable="false"
android:textIsSelectable="false"
android:focusableInTouchMode="false"/>
<TextView
android:id="@+id/notesTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/nameTextView"
android:layout_marginTop="-5dp"
android:layout_toRightOf="@+id/completedCheckBox"
android:paddingBottom="7dp"
android:textColor="@android:color/white"
android:textSize="18dp"
android:longClickable="true"
android:focusable="false"
android:clickable="false"
android:textIsSelectable="false"
android:focusableInTouchMode="false"/>
</RelativeLayout>
感谢任何形式的帮助。如果可能的话，特别是代码片段：）。