我有自定义recyclerView。在项目中长按我会隐藏一些视图并显示另一个视图（隐藏图像视图并显示复选框）这是我的代码片段
@Override
public void onLongClickListener(String type, final int pos) {
if (serverStatus == 4) {
for (int i = 0; i < recyclerView.getChildCount(); i++) {
View view = recyclerView.getChildAt(i);
if (view == null) {
return;
}
final CircleImageView circleImageView = view.findViewById(R.id.circle_image);
final LetterImageView letterImageView = view.findViewById(R.id.iv_avatar);
final AppCompatCheckBox appCompatCheckBox = view.findViewById(R.id.checkbox);
letterImageView.setVisibility(View.GONE);
circleImageView.setVisibility(View.GONE);
final int finalI = i;
if (i == pos) {
appCompatCheckBox.setChecked(true);
currenctAmount = currenctAmount + Double.parseDouble(recyclerAdapter.getItem(finalI).getPrice());
((DashboardActivity) getActivity()).showFourTabHeader(currenctAmount + "");
((DashboardActivity) getActivity()).hideBottomBar();
}
appCompatCheckBox.setVisibility(View.VISIBLE);
}
}
}
一切正常，但我还有另一个问题。我会尝试解释我的问题在我的 recyclerView 中，我正在使用加载更多规范。当加载更多操作实现时，我的所有复选框都已隐藏，recyclerView 的样式都已隐藏。（我所有的复选框都隐藏了).这是我的加载更多功能
if (recyclerAdapter != null) {
recyclerAdapter.setmOnLoadMoreListener(new RecyclerAdapter.OnLoadMoreListener() {
@RequiresApi(api = Build.VERSION_CODES.M)
@Override
public void onLoadMore() {
packagesLists.add(null);
recyclerAdapter.notifyItemInserted(packagesLists.size() - 1);
getpackageRequest(false, serverStatus,
recyclerAdapter.getItemCount(),
null,
payStatus, true);
}
});
}
public void getpackageRequest(boolean allowShowDialog, final int serverStatus, int start, String searchParameters, final int payStatus, final boolean loadMore) {
DataRepository dataRepository = new DataRepository(getActivity());
dataRepository.getVolleyRequest(allowShowDialog, Request.Method.GET, url, new HashMap<String, String>(), new DataRepository.DaTaRepositoryCallback() {
@Override
public void onSuccess(String response) throws JSONException {
JSONObject jsonObject = new JSONObject(response);
Log.e("response packages", jsonObject.toString() + "mm");
int errorcode = jsonObject.getInt("errorcode");
String message = jsonObject.getString("message");
if (errorcode == 0) {
JSONObject dataObject = jsonObject.getJSONObject("data");
packageSize = dataObject.getInt("count");
((DashboardActivity) getActivity()).updateHeaderValue(packageSize);
JSONArray listArray = dataObject.getJSONArray("list");
if (listArray.length() > 0) {
emptyLayout.setVisibility(View.GONE);
recyclerView.setVisibility(View.VISIBLE);
if (loadMore) {
packagesLists.remove(packagesLists.size() - 1);
recyclerAdapter.notifyItemRemoved(packagesLists.size());
recyclerAdapter.setLoaded();
}
Gson gson = new Gson();
PackagesList[] packages = gson.fromJson(listArray.toString(), PackagesList[].class);
packagesLists.addAll(Arrays.asList(packages));
recyclerAdapter.notifyDataSetChanged();
} else {
if (!loadMore) {
recyclerView.setVisibility(View.GONE);
emptyLayout.setVisibility(View.VISIBLE);
}
}
} else {
new MaterialDialog.Builder(getActivity())
.content(message)
.positiveText(getString(R.string.u_yes))
.show();
}
}
我认为问题是 notifyDataSetChanged。如何在 recyclerView 中添加新项目可以保存以前的项目样式？谢谢