me.zchang.onchart.ui.LessonListFragment.java Source code

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Here is the source code for me.zchang.onchart.ui.LessonListFragment.java

Source

package me.zchang.onchart.ui;

import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AnimationUtils;
import android.widget.FrameLayout;

import java.util.ArrayList;
import java.util.List;

import me.zchang.onchart.R;
import me.zchang.onchart.student.Course;
import me.zchang.onchart.ui.adapter.CourseListAdapter;

/*
 *    Copyright 2015 Zhehua Chang
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

/**
 * A simple {@link Fragment} subclass.
 */
public class LessonListFragment extends Fragment {
    private final static String TAG = "LessonListFragment";

    RecyclerView courseList;
    CourseListAdapter adapter;

    /**
     * This course list is handled by Fragment and shared with adapter
     * for lifecycle consideration.As the data is generated before Fragment attached,
     * the moment the adapter is not instantiated, the data should be stored in
     * Fragment to be passed to adapter later.What's more, the list's pointer
     * points to one area of memory so that you need to maintain this list only.
     */
    List<Course> courses;

    private boolean slideAnimFlag = false;

    public LessonListFragment() {
        courses = new ArrayList<>();
    }

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);

        adapter = new CourseListAdapter(context, courses, getId());
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setRetainInstance(true);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_lesson_list, container, false);
        courseList = (RecyclerView) rootView.findViewById(R.id.rv_lessons);
        adapter.setCourses(courses);
        courseList.setAdapter(adapter);
        if (slideAnimFlag) {
            courseList.setLayoutAnimation(
                    AnimationUtils.loadLayoutAnimation(getActivity(), R.anim.main_recycler_view_layout));
        }
        return rootView;
    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        FrameLayout frameLayout = (FrameLayout) getView();
        frameLayout.setClipChildren(false);
        frameLayout.setClipToPadding(false);
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        slideAnimFlag = false;
    }

    public void clearCourse() {
        if (courses != null)
            courses.clear();
    }

    public void addCourse(Course course) {
        if (course != null) {
            courses.add(course);
        }

    }

    public void updateList() {
        if (adapter != null) {

            // TODObad logic
            adapter.processLessons();

            adapter.notifyDataSetChanged();
        }
    }

    public void updateLessonImg(long id) {
        for (Course course : courses) {
            if (course.getId() == id) {
                course.setToNextLabelImg();
                break;
            }
        }
    }

    public Course findCourseById(long id) {
        for (Course course : courses) {
            if (course.getId() == id) {
                return course;
            }
        }
        return null;
    }

    public RecyclerView getCourseRecyclerView() {
        return courseList;
    }

    public boolean isSlideAnimFlag() {
        return slideAnimFlag;
    }

    public void setSlideAnimFlag(boolean slideAnimFlag) {
        this.slideAnimFlag = slideAnimFlag;
    }
}