我有一个回收视图，其中列出了许多项目并点击了1项目打开了一个对话框，其中包含该项目的子类别。每个子类别都有一个checkbpx。问题是，当我点击1复选框并单击确定然后返回要选择另一个类别，还要检查另一个子类别中相同索引的项目。这是我在“对话框”中列出子类别的代码
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.bt_ok:
// Updatecatagory();
for (int i = 0; i < mysubcatagoryAdapter.catagory_list.size(); i++) {
if (!mysubcatagoryAdapter.isChecked) {
// mysubcatagoryAdapter.removehash.get(i).;
//mysubcatagoryAdapter.removehash.clear();
mysubcatagoryAdapter.removehash.remove(i);
}
}
finish();
}
}
这是我的适配器
public class CustomRecycleViewAdapter_Language extends
RecyclerView.Adapter<CustomRecycleViewAdapter_Language.MyLanguageViewHolder>
{
private Context context;
public ArrayList<String> catagory_list;
private View resourceLayout;
private OnSelected onSelected;
private String checkForAction;
public ArrayList<String> removehash;
public boolean isChecked=false;
int count = 1;
SharedPreferences selection =
getApplicationContext().getSharedPreferences("MyLang", MODE_PRIVATE);
SharedPreferences.Editor editor = selection.edit();
public CustomRecycleViewAdapter_Language(Context context, ArrayList<String>
catagory_list, String checkForAction) {
this.context = context;
this.catagory_list = catagory_list;
this.checkForAction = checkForAction;
}
public class MyLanguageViewHolder extends RecyclerView.ViewHolder {
private TextView tv_option;
private CheckBox cb_option;
private RelativeLayout rl_option;
public MyLanguageViewHolder(View itemView) {
super(itemView);
tv_option = (TextView) itemView.findViewById(R.id.tv_option);
cb_option = (CheckBox) itemView.findViewById(R.id.cb_option);
rl_option = (RelativeLayout) itemView.findViewById(R.id.rl_option);
}
}
@Override
public MyLanguageViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
resourceLayout = LayoutInflater.from(parent.getContext()).inflate(R.layout.resource_selectfilter, null);
MyLanguageViewHolder mcv = new MyLanguageViewHolder(resourceLayout);
return mcv;
}
@Override
public void onBindViewHolder(final MyLanguageViewHolder holder, final int position) {
holder.tv_option.setText(catagory_list.get(position).split("#")
[1].substring(0, 1).toUpperCase() +
catagory_list.get(position).split("#")[1].substring(1));
removehash = new ArrayList<>();
removehash.clear();
Common.languageselection.add(position);
for (int i = 0; i < catagory_list.size(); i++) {
removehash.add(catagory_list.get(i).split("#")[0]);
}
if (!Common.isFlag) {
try {
if(Common.languageselection.size()!=0) {
if
(Common.setid.get(position).equals(String.valueOf(position))) {
holder.cb_option.setChecked(true);
}
}
count = 2;
} catch (Exception e) {
}
}
if (checkForAction.equals("UPLOAD")) {
holder.cb_option.setVisibility(View.GONE);
}
holder.rl_option.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (onSelected != null) {
if (count == 2) {
if (!holder.cb_option.isChecked()) {
holder.cb_option.setChecked(true);
removehash.get(position);
isChecked=true;
Common.setid.add(String.valueOf(position));
} else if (holder.cb_option.isChecked()) {
holder.cb_option.setChecked(false);
Common.setid.remove(String.valueOf(position));
removehash.remove(position);
}
onSelected.onClicked(view, removehash.get(position));
isChecked=true;
} else {
if (!holder.cb_option.isChecked()) {
holder.cb_option.setChecked(true);
Common.setid.add(String.valueOf(position));
removehash.get(position);
isChecked=true;
} else if (holder.cb_option.isChecked()) {
holder.cb_option.setChecked(false);
removehash.remove(position);
Common.setid.remove(String.valueOf(position));
}
if (checkForAction.equals("UPLOAD")) {
holder.cb_option.setVisibility(View.GONE);
onSelected.onClicked(view, catagory_list.get(position));
} else
onSelected.onClicked(view, removehash.get(position));
Common.holdvalues.add(removehash.get(position));
}
Log.v("SHOW", removehash.toString());
}
}
});
// try
// {
//
// if(Common.languageselection.size()>0)
// {
// for(int i=0;i<Common.languageselection.size();i++)
// {
//
//
//
if(Common.languageselection.get(i).equals(Common.setid.get(i)))
// {
//
// holder.cb_option.setChecked(true);
// }
// else
// holder.cb_option.setChecked(false);
//
// }
// }
//
// }catch (Exception e)
// {
//
// }
/* holder.tv_option.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (onlanguageSelected != null) {
onlanguageSelected.onLanguageClicked(view,catagory_list.get(position));
}
}
});*/
}
@Override
public int getItemCount() {
return catagory_list.size();
}
public void setOnSelected(OnSelected onSelected) {
this.onSelected = onSelected;
}
public interface OnSelected {
public void onClicked(View view, String selectedVal);
}
}
这是布局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@color/white">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true">
<android.support.v7.widget.RecyclerView
android:id="@+id/rv_subcatagories"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="2dp"
android:padding="20dp"
android:scrollbars="vertical">
</android.support.v7.widget.RecyclerView>
<LinearLayout
android:id="@+id/ll_respondcontainer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_below="@+id/rv_subcatagories"
android:orientation="horizontal"
android:padding="10dp">
<Button
android:id="@+id/bt_ok"
android:layout_width="80dp"
android:layout_height="30dp"
android:layout_marginRight="2dp"
android:background="@drawable/btn_background"
android:text="OK"
android:textColor="@color/white" />
</LinearLayout>
</RelativeLayout>
</RelativeLayout>
RecyclerView项目
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingRight="3dp"
android:paddingTop="2dp">
<RelativeLayout
android:id="@+id/rl_option"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@android:color/transparent"
android:orientation="horizontal"
android:padding="5dp"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true">
<CheckBox
android:id="@+id/cb_option"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:clickable="false"
android:button="@drawable/checkbox_selector"
android:gravity="left" />
<TextView
android:id="@+id/tv_option"
android:layout_width="wrap_content"
android:layout_height="30dp"
android:layout_centerVertical="true"
android:text="Arindom"
android:background="@drawable/edittext_bg"
android:gravity="center"
android:padding="2dp"
android:textColor="@color/filtertextcolor"
android:textSize="15dp" />
<View
android:id="@+id/UnderPassword"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_below="@+id/tv_option"
android:layout_centerHorizontal="true"
android:background="@color/linecolor" />
</RelativeLayout>
</RelativeLayout>
答案 0 :(得分：0)
从你的问题我做了一个例子，请检查它是否有帮助。
主类RecyclerView活动
public class RecyclerViewActivity extends AppCompatActivity implements CategoryClickListener {
private RecyclerView recyclerViewCategory;
private RecyclerView.LayoutManager mLayoutManager;
private Context context = RecyclerViewActivity.this;
private Activity activity = RecyclerViewActivity.this;
private CategoryAdapter categoryAdapter;
private CategoryClickListener categoryClickListener;
ArrayList<ArrayList<SubcategoryModel>> listData = new ArrayList<>();
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_recycler_view);
categoryClickListener = this;
getDummyData();
recyclerViewCategory = (RecyclerView) findViewById(R.id.recycler_view);
mLayoutManager = new LinearLayoutManager(context);
recyclerViewCategory.setHasFixedSize(true);
recyclerViewCategory.setLayoutManager(mLayoutManager);
categoryAdapter = new CategoryAdapter(context, listData, categoryClickListener);
recyclerViewCategory.setAdapter(categoryAdapter);
}
public void getDummyData() {
for (int i = 0; i < 10; i++) {
ArrayList<SubcategoryModel> subCategoryData = new ArrayList<>();
subCategoryData.add(new SubcategoryModel("Sub category 1", false));
subCategoryData.add(new SubcategoryModel("Sub category 2", false));
subCategoryData.add(new SubcategoryModel("Sub category 3", false));
subCategoryData.add(new SubcategoryModel("Sub category 4", false));
subCategoryData.add(new SubcategoryModel("Sub category 5", false));
listData.add(subCategoryData);
}
}
private void showDialog(ArrayList<SubcategoryModel> listSubcategory) {
try {
final Dialog dialog = new Dialog(context);
dialog.setCancelable(true);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.getWindow().getAttributes().windowAnimations
= R.style.Animation_AppCompat_DropDownUp;
dialog.setContentView(R.layout.dialog_subcategory);
WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
Window window = dialog.getWindow();
lp.copyFrom(window.getAttributes());
lp.width = WindowManager.LayoutParams.MATCH_PARENT;
lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
window.setAttributes(lp);
RecyclerView recyclerViewSubcategory = (RecyclerView) dialog.findViewById(R.id.recycler_view_subcategory);
RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(context);
recyclerViewSubcategory.setHasFixedSize(true);
recyclerViewSubcategory.setLayoutManager(mLayoutManager);
SubCategoryAdapter adapter = new SubCategoryAdapter(context, listSubcategory);
recyclerViewSubcategory.setAdapter(adapter);
dialog.show();
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public void categoryClick(int position) {
showDialog(listData.get(position));
}
}
类别适配器类
public class CategoryAdapter extends RecyclerView.Adapter<CategoryAdapter.CustomViewHolder> {
private ArrayList<ArrayList<SubcategoryModel>> listData;
private Context context;
private CategoryClickListener categoryClickListener;
public CategoryAdapter(Context context, ArrayList<ArrayList<SubcategoryModel>> listData, CategoryClickListener categoryClickListener) {
this.listData = listData;
this.context = context;
this.categoryClickListener = categoryClickListener;
}
@Override
public CategoryAdapter.CustomViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.row_category_view, parent, false);
CategoryAdapter.CustomViewHolder viewHolder = new CategoryAdapter.CustomViewHolder(view);
return viewHolder;
}
//This method binds all widgets with a value
@Override
public void onBindViewHolder(final CategoryAdapter.CustomViewHolder holder, int position) {
try {
holder.textViewCategory.setText("Category "+(position+1));
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public int getItemCount() {
return (null != listData ? listData.size() : 0);
}
class CustomViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
private TextView textViewCategory;
public CustomViewHolder(View itemView) {
super(itemView);
itemView.setOnClickListener(this);
textViewCategory = (TextView) itemView.findViewById(R.id.textViewCategory);
}
@Override
public void onClick(View v) {
categoryClickListener.categoryClick(getAdapterPosition());
}
}
}
子类别适配器类
class SubCategoryAdapter extends RecyclerView.Adapter<SubCategoryAdapter.CustomViewHolder> {
private ArrayList<SubcategoryModel> listData;
private Context context;
public SubCategoryAdapter(Context context, ArrayList<SubcategoryModel> listData) {
this.listData = listData;
this.context = context;
}
@Override
public SubCategoryAdapter.CustomViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.row_subcategory_view, parent, false);
SubCategoryAdapter.CustomViewHolder viewHolder = new SubCategoryAdapter.CustomViewHolder(view);
return viewHolder;
}
//This method binds all widgets with a value
@Override
public void onBindViewHolder(final SubCategoryAdapter.CustomViewHolder holder, int position) {
try {
SubcategoryModel subCategory = listData.get(position);
holder.textViewSubCategory.setText(subCategory.name);
if(subCategory.isChecked)
{
holder.checkBox.setChecked(true);
}else{
holder.checkBox.setChecked(false);
}
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public int getItemCount() {
return (null != listData ? listData.size() : 0);
}
class CustomViewHolder extends RecyclerView.ViewHolder {
private TextView textViewSubCategory;
private CheckBox checkBox;
public CustomViewHolder(View itemView) {
super(itemView);
textViewSubCategory = (TextView) itemView.findViewById(R.id.textViewSubCategory);
checkBox = (CheckBox) itemView.findViewById(R.id.checkbox);
checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
listData.get(getAdapterPosition()).isChecked=isChecked;
}
});
}
}
}
子类别模型类
public class SubcategoryModel {
String name;
boolean isChecked;
public SubcategoryModel(String name, boolean isChecked)
{
this.name = name;
this.isChecked = isChecked;
}
}
类别点击监听器
public interface CategoryClickListener {
public void categoryClick(int position);
}
activity_recycler_view
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView
android:id="@+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:scrollbars="none">
</android.support.v7.widget.RecyclerView>
</LinearLayout>
dialog_subcategory
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView
android:id="@+id/recycler_view_subcategory"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:scrollbars="none">
</android.support.v7.widget.RecyclerView>
</LinearLayout>
row_category_view
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@android:color/white"
android:padding="10dp">
<TextView
android:id="@+id/textViewCategory"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000"/>
</LinearLayout>
row_subcategory_view
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal" android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10dp">
<CheckBox
android:id="@+id/checkbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/textViewSubCategory"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000"/>
</LinearLayout>
可能对您有所帮助。
答案 1 :(得分：0)
您需要在 onBindViewHolder 中分配选中状态之前将侦听器设置为 null
holder.rl_option.setOnClickListener(null)
我使用复选框侦听器 here
创建了一个示例