Recyclerview多布局_recyclerview 多布局

适配器中添加点击事件

向中间布局添加的数据

@Override
protected void onBindItemViewHolder(VholderActivity holder, final int section, final int position) {
    holder.tv2.setText(data.get(section).getDepatmentTitle().get(position).getType());
    holder.itemView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if (mOnHolderClickListener != null) {
                mOnHolderClickListener.onHolderClick(view, section, position);
            }
        }
    });
}
//点击事件的接口回调
private OnHolderClickListener mOnHolderClickListener;

public interface OnHolderClickListener {
    void onHolderClick(View view, int section, int position);
}

public void setOnHolderClickListener(OnHolderClickListener listener) {
    mOnHolderClickListener = listener;
}

//主布局的应用

myAdapter.setOnHolderClickListener(new MyAdapter.OnHolderClickListener() {
    @Override
    public void onHolderClick(View view, int section, int position) {
        Toast.makeText(MainActivity.this,"--" +department.get(section).getDepatmentTitle().get(position).getType(), Toast.LENGTH_SHORT).show();
    }
});

section是头部

position是具体条目

效果图

//接口

interface UC {
    String URL_TAB0 = "https://raw.githubusercontent.com/zhang721788/testmaterial/master/doctor0.json";
    String URL_TAB1 = "https://raw.githubusercontent.com/zhang721788/testmaterial/master/doctor1.json";
}

//两个Fragment中的一个

public class Fragment0 extends BaseFragment {

    public Fragment0() {

    }

    @Override
    protected String getUrl() {
        return UC.URL_TAB0;
    }
}

//布局之一

public class MyHeaderViewHolder extends RecyclerView.ViewHolder{
   
TextView tv1;
public VhHead(View itemView) {
    super(itemView);
    tv1 = itemView.findViewById(R.id.tv1);
}
}
//xml布局

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@color/c_f1f1f1"
    android:orientation="horizontal"
    android:paddingBottom="5dp"
    android:paddingLeft="15dp"
    android:paddingRight="15dp"
    android:paddingTop="5dp">

    <TextView
        android:id="@+id/title_tv"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1" />

    <CheckBox
        android:checked="false"
        android:background="@android:color/transparent"
        android:id="@+id/title_checke_all_cb"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:button="@null"
        android:text="@string/cb_select_all_checed"
        android:textColor="@color/cb_c_sc_check_all" />
</LinearLayout>

//主方法Tablayout+Viewpager

public class MainActivity extends AppCompatActivity {

    protected TabLayout tablayoutTl;
    protected ViewPager viewpagerVp;
    protected FloatingActionButton fab;
    private String TAG = this.getClass().getSimpleName();

    private ArrayList<Fragment> fragments;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        super.setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        toolbar.setTitle("分类选择");
        toolbar.setTitleTextColor(getResources().getColor(R.color.c_606060));
        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });

        initView();

    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {

        int id = item.getItemId();
//        action_settings上边确定点击吐司
        if (id == R.id.action_settings) {
            BaseFragment fragment = (BaseFragment) fragments.get(tablayoutTl.getSelectedTabPosition());
            Toast.makeText(this, "勾选了:" + fragment.getCheckedInfo(), Toast.LENGTH_SHORT).show();
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    private void initView() {
        tablayoutTl = (TabLayout) findViewById(R.id.tablayout_tl);
        fragments = new ArrayList<>();
        fragments.add(new Fragment0());
        fragments.add(new Fragment1());
        viewpagerVp = (ViewPager) findViewById(R.id.viewpager_vp);
        tablayoutTl.setupWithViewPager(viewpagerVp);


        viewpagerVp.setAdapter(new MyPagerAdapter(getSupportFragmentManager()));

        fab = (FloatingActionButton) findViewById(R.id.fab);
    }

    String[] tabs = {"科室", "兴趣"};

    class MyPagerAdapter extends FragmentPagerAdapter {


        @Override
        public CharSequence getPageTitle(int position) {
            return tabs[position];
        }

        public MyPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public Fragment getItem(int position) {
            return fragments.get(position);
        }

        @Override
        public int getCount() {
            return fragments.size();
        }
    }
}

//适配器中的内容  使用包

public abstract class BaseFragment extends Fragment {

    protected DoctorInfo doctorInfo;
    private MyRecyclerAdapter adapter;
    private float density;
    private int widthPixels;

    public BaseFragment() {

    }

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        density = getContext().getResources()
                .getDisplayMetrics()
                .density;
        DisplayMetrics displayMetrics = new DisplayMetrics();
        getActivity().getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
        //屏幕宽度px
        widthPixels = displayMetrics.widthPixels;
        Log.i(TAG, "onCreate: 屏幕的宽度是***" + widthPixels);
        int densityDpi = displayMetrics.densityDpi;
        Log.i(TAG, "onCreate: densityDpi***" + densityDpi);
        float density = displayMetrics.density;
        Log.i(TAG, "onCreate: density***" + density);

    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.layout_recycler, null);

        initView(view);
        request();
        return view;
    }

    private void initView(View rootView) {
        recyclerRv = (RecyclerView) rootView.findViewById(R.id.recycler_rv);
        //使用多布局
        GridLayoutManager manager = new GridLayoutManager(this.getActivity(), 2);
        recyclerRv.setLayoutManager(manager);
        recyclerRv.setHasFixedSize(true);
        adapter = new MyRecyclerAdapter();
        recyclerRv.setAdapter(adapter);
        //设置列的跨度
        manager.setSpanSizeLookup(new SectionedSpanSizeLookup(adapter, manager));

    }

    protected View rootView;
    protected String TAG = this.getClass().getSimpleName();
    protected RecyclerView recyclerRv;

    private void request() {
        //请求数据OkHTTP
        gson = new Gson();
        new OkHttpClient.Builder()
                .build().newCall(new Request.Builder().url(getUrl()).build())
                .enqueue(new Callback() {
                    @Override
                    public void onFailure(Call call, IOException e) {
                        e.printStackTrace();
                    }

                    @Override
                    public void onResponse(Call call, Response response) throws IOException {
                        String result = response.body().string();
                        Log.i(TAG, result);
                        doctorInfo = gson.fromJson(result, DoctorInfo.class);
                        Log.i(TAG, "doctorInfo: ***" + doctorInfo.toString());
                        BaseFragment.this.getActivity().runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                //改变数据
                                adapter.notifyDataSetChanged();
                            }
                        });
                    }
                });
    }

    protected abstract String getUrl();

    protected Gson gson;

    //适配器
    class MyRecyclerAdapter extends SectionedRecyclerViewAdapter<MyHeaderViewHolder, MyViewHolder, MyFootHeader> {

        int itemSpaceWidth;
        int cbShouldWidth;

        public MyRecyclerAdapter() {
            itemSpaceWidth = dp2px(15);
            cbShouldWidth = (widthPixels - 3 * itemSpaceWidth) / 2;
        }

        public MyRecyclerAdapter(int dpValue) {
            itemSpaceWidth = dp2px(dpValue);
        }


        @Override
        protected int getSectionCount() {
            return doctorInfo == null ? 0 : doctorInfo.getData().size();
        }

        @Override
        protected int getItemCountForSection(int section) {
            return doctorInfo == null ? 0 : doctorInfo.getData().get(section).getChilds().size();
        }

        @Override
        protected boolean hasFooterInSection(int section) {
            return false;
        }

        @Override
        protected MyHeaderViewHolder onCreateSectionHeaderViewHolder(ViewGroup parent, int viewType) {
            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_recycler_header, null);
            return new MyHeaderViewHolder(view);
        }

        @Override
        protected MyFootHeader onCreateSectionFooterViewHolder(ViewGroup parent, int viewType) {
            return null;
        }

        @Override
        protected MyViewHolder onCreateItemViewHolder(ViewGroup parent, int viewType) {
            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_recycler_normal, null);
            return new MyViewHolder(view);
        }

        @Override
        protected void onBindSectionHeaderViewHolder(final MyHeaderViewHolder holder, final int section) {
            holder.titleTv.setText(doctorInfo.getData().get(section).getDataName());
            holder.titleCheckeAllCb.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                    @Override
                    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                        if (isChecked) {
                            holder.titleCheckeAllCb.setText(R.string.cb_select_all_cancel);
                            for (DoctorInfo.DataBean.ChildsBean bean : doctorInfo.getData().get(section).getChilds()) {
                                bean.setIsFocus(1);
                            }
                        } else {
                            holder.titleCheckeAllCb.setText(R.string.cb_select_all_checed);
                            for (DoctorInfo.DataBean.ChildsBean bean : doctorInfo.getData().get(section).getChilds()) {
                                bean.setIsFocus(0);
                            }
                        }
                        notifyDataSetChanged();
                    }
            });
        }


        @Override
        protected void onBindItemViewHolder(final MyViewHolder holder, final int section, final int position) {
            holder.itemSelectCb.setText(doctorInfo.getData().get(section).getChilds().get(position).getDepName());
            LinearLayout.LayoutParams layoutParams = (LinearLayout.LayoutParams) holder.bg_ll.getLayoutParams();
            layoutParams.width = cbShouldWidth;
            if (position % 2 == 0) {
                layoutParams.leftMargin = itemSpaceWidth;
            } else if (position % 2 == 1) {
                layoutParams.leftMargin = itemSpaceWidth / 2;
            }
            holder.bg_ll.setLayoutParams(layoutParams);
            holder.itemSelectCb.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                @Override
                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                    if (isChecked) {
                        holder.bg_ll.setBackgroundDrawable(holder.bg_ll.getResources().getDrawable(R.drawable.cb_d_bg_sp_subscribe_checked));
                        doctorInfo.getData().get(section).getChilds().get(position).setIsFocus(1);
                    } else {
                        holder.bg_ll.setBackgroundDrawable(holder.bg_ll.getResources().getDrawable(R.drawable.cb_d_bg_sp_subscribe_normal));
                        doctorInfo.getData().get(section).getChilds().get(position).setIsFocus(0);
                    }

                }
            });

            if (doctorInfo.getData().get(section).getChilds().get(position).getIsFocus() == 0) {
                holder.itemSelectCb.setChecked(false);
            } else {
                holder.itemSelectCb.setChecked(true);
            }
        }
        @Override
        protected void onBindSectionFooterViewHolder(MyFootHeader holder, int section) {
        }
    }

    public int dp2px(int dpValue) {
        int resultValue = (int) (dpValue * density + 0.5);
        Log.i(TAG, "dp2px: dp转换px***" + resultValue);
        return resultValue;
    }

    public String getCheckedInfo() {
        if ( doctorInfo != null) {
            checkedBuilder.setLength(0);
            for (int i = 0; i < doctorInfo.getData().size(); i++) {
                for (int j = 0; j < doctorInfo.getData().get(i).getChilds().size(); j++) {
                    if (doctorInfo.getData().get(i).getChilds().get(j).getIsFocus() == 1) {
                        checkedBuilder.append(doctorInfo.getData().get(i).getChilds().get(j).getDepName());
                        checkedBuilder.append(",");
                    }
                }
            }
        }
        return checkedBuilder.toString();
    }
    private StringBuilder checkedBuilder = new StringBuilder();
}