在动画完成之前调用ObjectAnimator onAnimationEnd侦听器

时间:2013-09-04 15:34:52

标签: android animation android-fragments android-asynctask objectanimator

它奇怪而奇怪,但似乎当我将AnimatorListener附加到我用于动画片段事务的ObjectAnimator时,回调实际上在动画结束前稍微调用。 我使用监听器将内容填充到片段中(来自DB)。这个操作有时需要很长时间(~200ms),当我在onCreate左右时,它只会破坏动画,因为在动画过程中会返回并呈现内容......然后会有很多垃圾和口吃。 。 因此,当我将填充调用添加到侦听器时,它也适用于DB选择需要很长时间。但有时它几乎是瞬间的,在这种情况下,当动画结束前调用回调时我遇到了问题。回调和实际结束之间的差距很长,以便从DB返回数据并再次破坏动画的流动性:/

你们知道吗,如何解决这个问题?下面几乎是片段的全部代码。

所以基本上有两种方法可以解决这个问题。我可以找到完全另一种解决方案,如何在没有垃圾动画的情况下将内容填充到片段中,或者我可以找到一种方法来解决监听器的问题。 / p>

还有一种我不喜欢的方式。我可以创建一个Handler并调用postDelayed..awful解决方案:)

public class ImportantContactsFragment extends Fragment {

public static final String TAG = ImportantContactsFragment.class.getSimpleName();


private ListView list;
private Spinner departmentsSwitcher;
private Spinner facultiesSwitcher;
private ContactsAdapter adapter;
private ArrayList<ImportantContact> currentListOfPeople;
private int currentFaculty = 1;
private Department currentDeparment = Department.STUDY_DEPARTMENT;
private PullToRefreshAttacher mPullToRefreshAttacher;
private boolean boot = true;
private AsyncTask<Integer, ArrayList<ImportantContact>, ArrayList<ImportantContact>> task;


private ArrayList<Faculty> faculties;


private SpinnerAdapter departmentsSpinnerAdapter;
private SpinnerAdapter facultiesSpinnerAdapter;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    currentListOfPeople = new ArrayList<ImportantContact>();
    faculties = new ArrayList<Faculty>(2);
    currentDeparment = Department.STUDY_DEPARTMENT;

    faculties.add(Faculty.getFEL());
    faculties.add(Faculty.getFIT());

    FrameLayout view = (FrameLayout) inflater.inflate(R.layout.important_contacts_fragment_list_layout, container, false);
    departmentsSwitcher = (Spinner) view.findViewById(R.id.departmentsSpinner);
    facultiesSwitcher = (Spinner) view.findViewById(R.id.facultiesSpinner);


    facultiesSpinnerAdapter = new ArrayAdapter<Faculty>(getActivity(), R.layout.spinner_text_view, faculties);
    departmentsSpinnerAdapter = new ArrayAdapter<Department>(getActivity(), R.layout.spinner_text_view, Department.values());


    departmentsSwitcher.setAdapter(departmentsSpinnerAdapter);
    facultiesSwitcher.setAdapter(facultiesSpinnerAdapter);

    list = (ListView) view.findViewById(R.id.list);
    adapter = new ContactsAdapter(getActivity(), R.layout.important_contacts_list_item, currentListOfPeople, list);
    list.setAdapter(adapter);
    list.requestFocus();
    departmentsSwitcher.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
            currentDeparment = (Department) departmentsSpinnerAdapter.getItem(position);
            fillAdapterWithData(currentFaculty, currentDeparment);
        }

        @Override
        public void onNothingSelected(AdapterView<?> parent) {
        }
    });
    facultiesSwitcher.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
            currentFaculty = position + 1;
            fillAdapterWithData(currentFaculty, currentDeparment);
        }

        @Override
        public void onNothingSelected(AdapterView<?> parent) {

        }
    });

    return view;
}


@Override
public void onResume() {
    super.onResume();
    Tracking.onResume(this);
//        fillAdapterWithData(currentFaculty, currentDeparment);

}

@Override
public void onPause() {
    super.onPause();
    if (task != null) {
        task.cancel(true);
    }
}


@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);




}

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    getActivity().getActionBar().setTitle(getString(R.string.important_contacts));
}

public void fillAdapterWithData(int facultyId, Department department) {
    if (boot) {
        boot = false;
        return;
    }
    currentListOfPeople.clear();
    if (task != null) {
        task.cancel(true);
    }
    task = new AsyncTask<Integer, ArrayList<ImportantContact>, ArrayList<ImportantContact>>() {
        @Override
        protected ArrayList<ImportantContact> doInBackground(Integer... params) {
            return Controller.peopleDBController.getListOfImportantContactFromListOfContact(Controller.contactsDBController.searchRows(params[0], params[1]));
        }


        @Override
        protected void onPostExecute(ArrayList<ImportantContact> importantContacts) {

//          adapter.notifyDataSetChanged();
            adapter.addAll(importantContacts);


        }
    };
//        getActivity().setProgressBarVisibility(true);

    task.execute(facultyId, department.ordinal());
    adapter.addAll(Controller.peopleDBController.getListOfImportantContactFromListOfContact(Controller.contactsDBController.searchRows(facultyId, department.ordinal())));

}

@Override
public Animator onCreateAnimator(int transit, boolean enter, int nextAnim) {
    if(enter){
        Animator animator = AnimatorInflater.loadAnimator(getActivity(), R.anim.fragment_slide_anim);
        if(animator!=null){
        animator.addListener(new Animator.AnimatorListener() {
            @Override
            public void onAnimationStart(Animator animation) {

            }

            @Override
            public void onAnimationEnd(Animator animation) {
//                    fillAdapterWithData(currentFaculty, currentDeparment);
            }

            @Override
            public void onAnimationCancel(Animator animation) {

            }

            @Override
            public void onAnimationRepeat(Animator animation) {

            }
        });
        }
        return  animator;
    }
    else{
        return super.onCreateAnimator(transit, enter, nextAnim);
    }



}

0 个答案:

没有答案