recyclerView的点击事件全选和取消全选

这是布局1

<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/c_f1f1f1"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context="com.example.my01.MainActivity"
    tools:showIn="@layout/activity_main">
    <!--android:background="@android:color/white"-->
    <android.support.design.widget.TabLayout
        android:id="@+id/tablayout_tl"
        android:layout_width="match_parent"
        android:layout_height="60dp"
        android:layout_marginTop="2dp"
        android:background="@color/c_ffffff"
        app:layout_constraintTop_toTopOf="parent"
        app:tabIndicatorColor="@color/c_5183d9"
        app:tabSelectedTextColor="@color/c_5183d9"
        app:tabTextColor="@color/c_606060" />

    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager_vp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toBottomOf="@id/tablayout_tl">

    </android.support.v4.view.ViewPager>

</android.support.constraint.ConstraintLayout>

这是布局二

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="com.example.my01.MainActivity">    <android.support.design.widget.AppBarLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:theme="@style/AppTheme.AppBarOverlay">        <android.support.v7.widget.Toolbar            android:id="@+id/toolbar"            android:layout_width="match_parent"            android:layout_height="?attr/actionBarSize"            android:background="?attr/colorPrimary"            android:theme="@style/AppTheme.ActionBar"            app:popupTheme="@style/AppTheme.PopupOverlay" />    </android.support.design.widget.AppBarLayout>    <include layout="@layout/content_main" /></android.support.design.widget.CoordinatorLayout>

下面是嵌套的drawable

cb_d_bg_scsubscribe.xml

<selector xmlns:android="http://schemas.android.com/apk/res/android">    <item android:drawable="@drawable/cb_d_bg_sp_subscribe_checked" android:state_checked="true" />    <item android:drawable="@drawable/cb_d_bg_sp_subscribe_normal" android:state_checked="false" /></selector>

cb_d_bg_sp_subscribe_checked.xml

<shape    android:shape="rectangle"    xmlns:android="http://schemas.android.com/apk/res/android">    <solid        android:color="@color/c_ffffff"        />    <corners        android:radius="2dp"        />    <stroke        android:color="@color/c_5183d9"        android:width="2dp"        /></shape>

cb_d_bg_sp_subscribe_normal.xml

<shape xmlns:android="http://schemas.android.com/apk/res/android"    android:shape="rectangle">    <solid android:color="@color/c_ffffff" />    <stroke        android:width="2dp"        android:color="@color/c_ccc9c9" />    <corners android:radius="2dp" /></shape>

cb_d_sc_subscribe.xml 这个里面有两张图片

<selector xmlns:android="http://schemas.android.com/apk/res/android">    <item android:drawable="@drawable/cb_d_ic_subscribe_normal" android:state_checked="true" />    <item android:drawable="@drawable/cb_d_ic_subscribe_checked" android:state_checked="false" /></selector>

主布局

public class MainActivity extends AppCompatActivity {    protected TabLayout tablayoutTl;    protected ViewPager viewpagerVp;    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);        //实例化        initView();    }    private void initView() {        tablayoutTl = (TabLayout) findViewById(R.id.tablayout_tl);        fragments = new ArrayList<>();        //添加了两个碎片        fragments.add(new Fragment0());        fragments.add(new Fragment1());        viewpagerVp = (ViewPager) findViewById(R.id.viewpager_vp);        tablayoutTl.setupWithViewPager(viewpagerVp);//tablayout与viewpager绑定        viewpagerVp.setAdapter(new MyPagerAdapter(getSupportFragmentManager()));//viewpager和适配器进行绑定    }    //系统菜单    @Override    public boolean onCreateOptionsMenu(Menu menu) {        getMenuInflater().inflate(R.menu.menu_main, menu);        return true;    }    //确定按钮的触发    @Override    public boolean onOptionsItemSelected(MenuItem item) {        int id = item.getItemId();        if (id == R.id.action_settings) {//action_settings确定按钮的名字            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);    }    //title直接和适配器绑定    String[] tabs = {"科室", "兴趣"};    //适配器    class MyPagerAdapter extends FragmentPagerAdapter {        public MyPagerAdapter(FragmentManager fm) {            super(fm);        }        @Override        public Fragment getItem(int position) {            return fragments.get(position);        }        @Override        public int getCount() {            return fragments.size();        }        //和  String[] tabs = {"科室", "兴趣"};  绑定在一起        @Override        public CharSequence getPageTitle(int position) {            return tabs[position];        }    }

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";}

public class Fragment0 extends BaseFragment {    @Override    protected String getUrl() {        return UC.URL_TAB0;    }}

public class Fragment1 extends BaseFragment {    @Override    protected String getUrl() {        return UC.URL_TAB1;    }}

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);        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;    //请求数据    private void request() {        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() {                                adapter.notifyDataSetChanged();                            }                        });                    }                });    }    //调用的路径    protected abstract String getUrl();    protected Gson gson;    //recycleView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);        }        //头部的全选按钮        @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();                }            });        }        //中间视图的数据传输              以及点击事件全选和取消全选        @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;    }    //将选中的东西传入到主MainActivity中的系统菜单中然后由  确定按钮  进行触发    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();    }    //创建一个StringBuilder进行字符串拼接    private StringBuilder checkedBuilder = new StringBuilder();}

创建一个menu 主布局中的确定按钮

<menu xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools"    tools:context="com.example.my01.MainActivity">    <item        android:id="@+id/action_settings"        android:title="@string/action_settings"        app:showAsAction="always" /></menu>

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recyclerView的点击事件全选和取消全选

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