我需要将我的int值从一个方法转移到另一个方法，但我没有找到任何解决方案。一种方法计算对象的数量，并且数量需要“传递”到另一个，并检查，如果计数等于某事。
你有什么想法，怎么做？
检查下面的代码：
@Override
protected void onPostExecute(Void result) {
ParseQuery<Animal> query = ParseQuery.getQuery(Animal.class);
query.countInBackground(callcount = new CountCallback(){
public void done(int count, ParseException e) {
if (e == null) {
Log.v("count is" + count, "count is");
//I need to export int count from "done" method to another
} else {
}
}
});
}
secont方法，必须收到该值并使用它：
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
//i need to set int count from method above here
int threshold = 1;
int counter = mListView.getCount();
if (scrollState == SCROLL_STATE_IDLE) {
if (mListView.getLastVisiblePosition() >= counter - threshold) {
updateData();
}
}
整个代码：
public class Fragment1 extends Fragment {
static ListView mListView;
static AnimalAdapter mAdapter;
static ProgressBar mProgressBar;
static EditText mEditText;
static LayoutInflater inflater;
CountCallback callcount;
int g_count = 0;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View rootView = inflater.inflate(R.layout.animalsfrag, container, false);
mListView = (ListView)rootView.findViewById(R.id.animal_list);
View header = getActivity().getLayoutInflater().inflate(R.layout.header, null);
header.setPadding(2, 8, 4, 2);
mListView.setVisibility(View.INVISIBLE);
mListView.requestFocus();
mListView.addHeaderView(header);
View footie = getActivity().getLayoutInflater().inflate(R.layout.footer, null);
mListView.addFooterView(footie);
footie.setVisibility(View.INVISIBLE);
mProgressBar = (ProgressBar) rootView.findViewById (R.id.loading_animals);
mProgressBar.setVisibility(View.VISIBLE);
RemoteDataTask task = new RemoteDataTask();
task.execute();
return rootView;
}
public void updateData() {
mListView = (ListView)getView().findViewById(R.id.animal_list);
final ParseQuery<Animal> query = ParseQuery.getQuery(Animal.class);
query.setCachePolicy(CachePolicy.NETWORK_ONLY);
query.orderByAscending("animal");
query.setLimit(mListView.getCount() + 5);
Log.v("updateData", "uploading data from Parse.com");
query.findInBackground(new FindCallback<Animal>() {
@Override
public void done(List<Animal> animals, ParseException error) {
if(animals != null){
mAdapter.clear();
mProgressBar = (ProgressBar) getView().findViewById (R.id.loading_animals);
mProgressBar.setVisibility(View.INVISIBLE);
RelativeLayout footie = (RelativeLayout) getView().findViewById(R.id.footerview);
footie.setVisibility(View.VISIBLE);
mAdapter.clear();
for (int i = 0; i < animals.size(); i++) {
mAdapter.add(animals.get(i));
}
}
}
}); }
private class RemoteDataTask extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute(); }
@Override
protected Void doInBackground(Void... params) {
return null;
}
@Override
protected void onPostExecute(Void result) {
ParseQuery<Animal> query = ParseQuery.getQuery(Animal.class);
query.countInBackground(callcount = new CountCallback(){
public void done(int count, ParseException e) {
if (e == null) {
Log.v("count is" + count, "count is");
if (mListView.getCount() == count) {
Log.v("all loaded", "executed");
g_count=count;
}
} else {
// The request failed
}
}
});
Log.v("onpostexecute", "executing");
mListView = (ListView) getView().findViewById(R.id.animal_list);
if(mListView.getCount() == 0){
updateData();
}
mEditText = (EditText) getView().findViewById(R.id.search_animal);
mAdapter = new AnimalAdapter(getActivity(), new ArrayList<Animal>());
mListView.setVisibility(View.VISIBLE);
mListView.setTextFilterEnabled(true);
mListView.setAdapter(mAdapter);
mListView.setOnScrollListener(new OnScrollListener() {
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount,
int totalItemCount) {
}
@Override
public void onScrollStateChanged(AbsListView view,
int scrollState) {
int threshold = 1;
int counter = mListView.getCount();
if (scrollState == SCROLL_STATE_IDLE) {
if (mListView.getLastVisiblePosition() >= counter
- threshold){
updateData();
Log.v("count", "count is" + g_count);
}
}
if (SCROLL_STATE_TOUCH_SCROLL == scrollState) {
View currentFocus = getActivity().getCurrentFocus();
if(currentFocus != null) {
currentFocus.clearFocus();
}
}
}
});
mEditText.addTextChangedListener(new TextWatcher(){
@Override
public void afterTextChanged(Editable s) {}
@Override
public void beforeTextChanged(CharSequence s,
int start, int count, int after) {}
@Override
public void onTextChanged(CharSequence s, int start,
int before, int count) {
System.out.println("Text ["+s+"]");
mAdapter.getFilter().filter(s.toString());
}
});
}
}
}
我很乐意提出任何建议。 提前谢谢。
答案 0 :(得分：1)
如果你没有从另一个调用函数，那么你需要创建一个全局变量。 在您的类声明之后声明一个变量，即
int g_count = 0;
然后在
public void done(int count, ParseException e) {
if (e == null) {
Log.v("count is" + count, "count is");
g_count=count;
}
然后在第二次成功
public void onScrollStateChanged(AbsListView view, int scrollState) {
int count=g_count; \\you dont really need to declare this, just use g_count
int threshold = 1;
int counter = mListView.getCount();
if (scrollState == SCROLL_STATE_IDLE) {
if (mListView.getLastVisiblePosition() >= counter - threshold) {
updateData();
}
}