Recyclerview和CheckBox的完美

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Recyclerview的

多选单选全选去不选

mainactivity

public class MainActivity extends AppCompatActivity {    private boolean isType = false;    private List list = new ArrayList();    private RecyclerviewAdapter recyclerviewAdapter;    private Button selectAll;    private Button cancal;    private RecyclerView recyclerView;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        selectAll = (Button) findViewById(R.id.select_all);        cancal = (Button) findViewById(R.id.cancal);        recyclerView = (RecyclerView) findViewById(R.id.recyclerView);        list.add(R.mipmap.ic_launcher);        list.add(R.mipmap.ic_launcher);        list.add(R.mipmap.ic_launcher);        list.add(R.mipmap.ic_launcher);        list.add(R.mipmap.ic_launcher);        list.add(R.mipmap.ic_launcher);        list.add(R.mipmap.ic_launcher);        list.add(R.mipmap.ic_launcher);        list.add(R.mipmap.ic_launcher);        list.add(R.mipmap.ic_launcher);        list.add(R.mipmap.ic_launcher);        setRecyclerview();        initData();    }    private void initData() {        selectAll.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                isType = true;                recyclerviewAdapter.getAllSelect();            }        });        cancal.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                isType = false;                recyclerviewAdapter.setAllSelect();            }        });    }    private void setRecyclerview() {        LinearLayoutManager layout = new LinearLayoutManager(this);        layout.setOrientation(LinearLayoutManager.HORIZONTAL);        recyclerView.setLayoutManager(layout);        recyclerviewAdapter = new RecyclerviewAdapter(list, this);        //rvGroupPicture.addItemDecoration(recyclerViewItemDecoration);        recyclerView.setAdapter(recyclerviewAdapter);    }    public void setResponseState() {        runOnUiThread(new Runnable() {            @Override            public void run() {                try {                    int len = 0;                    int lenght = list.size();                    if (lenght > 1) {                        for (int i = 0; i < lenght; i++) {                            if (recyclerviewAdapter.ischeck.get(i, false)) {                                len = len + 1;                            }                        }                        if (len == 0) {                            isType = false;                        } else if (len > 0 & len < lenght) {                            isType = false;                        } else if (len == lenght) {                            isType = true;                        }                    }                } catch (Exception e) {                    e.printStackTrace();                }            }        });    }}

mainactivity的布局

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical">    <Button        android:id="@+id/select_all"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="全选" />    <Button        android:id="@+id/cancal"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="取消" />    <android.support.v7.widget.RecyclerView        android:id="@+id/recyclerView"        android:layout_width="match_parent"        android:layout_height="match_parent" /></LinearLayout>

adapter

public class RecyclerviewAdapter extends RecyclerView.Adapter<RecyclerViewHodler> {    private List list;    private Context context;    public SparseArray<Boolean> ischeck;    public SparseArray<CheckBox> listbox;    private boolean selectedState = false;    public RecyclerviewAdapter(List<String> list, Context context) {        this.context = context;        this.list = list;        ischeck = new SparseArray<Boolean>();        listbox = new SparseArray<CheckBox>();    }    @Override    public int getItemCount() {        return list != null ? list.size() : 0;    }    @Override    public RecyclerViewHodler onCreateViewHolder(ViewGroup parent, int viewType) {        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.picture_item, parent, false);        return new RecyclerViewHodler(view);    }    @Override    public void onBindViewHolder(RecyclerViewHodler holder, int position) {        holder.iv.setBackgroundResource((Integer) list.get(position));        holder.relativeLayour_item.setId(position);        SetSelectedState(holder.checkBoxGroupPicture, ischeck.get(position, false));        listbox.put(position, holder.checkBoxGroupPicture);        holder.relativeLayour_item.setOnClickListener(onclick);    }    public View.OnClickListener onclick = new View.OnClickListener() {        @Override        public void onClick(View v) {            int position = v.getId();            setIsSelectedState(true);            if (ischeck == null) {                ischeck.put(position, true);            } else {                if (!ischeck.get(position, false)) {                    ischeck.put(position, true);                } else {                    ischeck.put(position, false);                }            }            SetSelectedState(listbox.get(position), ischeck.get(position));            ((MainActivity) context).setResponseState();        }    };    public void setIsSelectedState(boolean state) {        selectedState = state;    }    public boolean getIsSelectedState() {        return selectedState;    }    public void SetSelectedState(CheckBox checkBox, boolean type) {        if (getIsSelectedState()) {            checkBox.setChecked(type);            if (type) {                checkBox.setBackgroundResource(R.mipmap.selected);            } else {                checkBox.setBackgroundResource(R.mipmap.unselected);            }        }    }    public void getAllSelect() {        try {            setIsSelectedState(true);            if (getIsSelectedState()) {                int length = list.size();                ischeck.clear();                //groupPath.clear();                for (int i = 0; i < length; i++) {                    ischeck.put(i, true);                    // ((GroupPictureEditActivity) context).setResponseState();                    if (i < listbox.size()) {                        SetSelectedState(listbox.get(i), ischeck.get(i));                    }                }            }        } catch (Exception e) {            e.printStackTrace();        }    }        public void setAllSelect() {        try {            setIsSelectedState(true);            if (getIsSelectedState()) {                ischeck.clear();                int length = list.size();                for (int i = 0; i < length; i++) {                    ischeck.put(i, false);                    if (i < listbox.size()) {                        SetSelectedState(listbox.get(i), ischeck.get(i));                    }                }                ((MainActivity)context).setResponseState();            }        } catch (Exception e) {            e.printStackTrace();            /** 为避免index下标越界 */        }    }}

item布局

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="60dp"    android:layout_height="60dp"    android:orientation="vertical">    <RelativeLayout        android:id="@+id/relativeLayour_item"        android:layout_width="60dp"        android:layout_height="60dp">        <ImageView            android:id="@+id/iv"            android:layout_width="60dp"            android:layout_height="60dp" />        <CheckBox            android:id="@+id/checkbox"            android:layout_width="30dp"            android:layout_height="30dp"            android:layout_alignParentBottom="true"            android:layout_alignParentRight="true"            android:layout_centerVertical="true"            android:background="@mipmap/unselected"            android:button="@null"            android:clickable="false"            android:duplicateParentState="true"            android:focusable="false"            android:focusableInTouchMode="false" />    </RelativeLayout></LinearLayout>

viewholder

public class RecyclerViewHodler extends RecyclerView.ViewHolder {    public ImageView iv;    public CheckBox checkBoxGroupPicture;    public RelativeLayout relativeLayour_item;    public RecyclerViewHodler(View view){        super(view);        iv = (ImageView)view.findViewById(R.id.iv);        iv.setScaleType(ImageView.ScaleType.CENTER_CROP);        checkBoxGroupPicture = (CheckBox)view.findViewById(R.id.checkbox);        relativeLayour_item = (RelativeLayout)view.findViewById(R.id.relativeLayour_item);    }}

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