在我的 recyclerview 适配器类中实现 Android 底页
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【中文标题】在我的 recyclerview 适配器类中实现 Android 底页【英文标题】：Implement Android bottom sheet in my recyclerview adapter class 【发布时间】：2016-06-18 03:02:08 【问题描述】：我想在我的 Recyclerview 适配器类的 Onlongclick 中实现 android 底部工作表，但我试图长按我的 recyclerview 项目它崩溃了。
public class AddAtendanceAdapter extends
RecyclerView.Adapter<AddAtendanceAdapter.AttendanceViewHolder>
public List<Details> dAttendance = Collections.emptyList();
private LayoutInflater inflater;
private static Context context;
private View v;
public AddAtendanceAdapter(Context context, List<Details> dAttendance)
this.dAttendance = dAttendance;
this.context = context;
inflater = LayoutInflater.from(context);
@Override
public AttendanceViewHolder onCreateViewHolder(ViewGroup parent, int viewType)
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.student_item_row,
parent, false);
AttendanceViewHolder pvh = new AttendanceViewHolder(v);
return pvh;
@Override
public void onBindViewHolder(AttendanceViewHolder holder, int postions)
Details details = dAttendance.get(postions);
holder.StudentsName.setText(details.getStudentName());
Glide.with(context)
.load(details.getStudentImage())
.into(holder.stdImg);
@Override
public int getItemCount()
if (dAttendance != null)
return dAttendance.size();
return 0;
@Override
public void onAttachedToRecyclerView(RecyclerView recyclerView)
super.onAttachedToRecyclerView(recyclerView);
public static class AttendanceViewHolder extends RecyclerView.ViewHolder
TextView StudentsName;
CircleImageView stdImg;
private Activity activity;
AttendanceViewHolder(View itemView)
super(itemView);
StudentsName = (TextView) itemView.findViewById(R.id.txtStdName);
stdImg = (CircleImageView) itemView.findViewById(R.id.stdImg);
itemView.setOnLongClickListener(new View.OnLongClickListener()
@Override
public boolean onLongClick(View v)
Log.d("juu","hhh");
openBottomSheet(v);
return false;
);
private void openBottomSheet(View v)
//View view = activity.getLayoutInflater ().inflate (R.layout.bottom_sheet, null);
// View view = inflater.inflate( R.layout.bottom_sheet, null );
LayoutInflater inflater = (LayoutInflater) context.getSystemService( Context.LAYOUT_INFLATER_SERVICE );
View view = inflater.inflate (R.layout.bottom_sheet, null);
TextView txtBackup = (TextView)view.findViewById(R.id.txt_backup);
TextView txtDetail = (TextView)view.findViewById(R.id.txt_detail);
TextView txtOpen = (TextView)view.findViewById(R.id.txt_open);
final TextView txtUninstall = (TextView)view.findViewById( R.id.txt_uninstall);
final Dialog mBottomSheetDialog = new Dialog (context, R.style.MaterialDialogSheet);
mBottomSheetDialog.setContentView (view);
mBottomSheetDialog.setCancelable (true);
mBottomSheetDialog.getWindow ().setLayout (LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
mBottomSheetDialog.getWindow ().setGravity (Gravity.BOTTOM);
mBottomSheetDialog.show ();
txtBackup.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View v)
Toast.makeText(context,"Clicked Backup",Toast.LENGTH_SHORT).show();
mBottomSheetDialog.dismiss();
);
txtDetail.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View v)
Toast.makeText(context,"Clicked Detail",Toast.LENGTH_SHORT).show();
mBottomSheetDialog.dismiss();
);
txtOpen.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View v)
Toast.makeText(context,"Clicked Open",Toast.LENGTH_SHORT).show();
mBottomSheetDialog.dismiss();
);
txtUninstall.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View v)
Toast.makeText(context,"Clicked Uninstall",Toast.LENGTH_SHORT).show();
mBottomSheetDialog.dismiss();
);
我的原木猫是
android.view.WindowManager$BadTokenException: 无法添加窗口 -- 令牌 null 不适用于应用程序 在 android.view.ViewRootImpl.setView(ViewRootImpl.java:583) 在 android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:310) 在 android.view.WindowManagerImpl.addView(WindowManagerImpl.java:85) 在 android.app.Dialog.show(Dialog.java:319) 在 in.edsys.teacherapp.adapters.AddAtendanceAdapter$AttendanceViewHolder.openBottomSheet(AddAtendanceAdapter.java:119) 在 in.edsys.teacherapp.adapters.AddAtendanceAdapter$AttendanceViewHolder.access$000(AddAtendanceAdapter.java:80) 在 in.edsys.teacherapp.adapters.AddAtendanceAdapter$AttendanceViewHolder$1.onLongClick(AddAtendanceAdapter.java:95)
【问题讨论】：
提供您的适配器长按代码，您似乎使用了错误的窗口令牌，这意味着您尝试显示不再存在的上下文。 你能给我那个示例代码吗？ 看看下面的android开发者博客链接，android-developers.blogspot.in/2016/02/… 您必须尝试以下链接代码。它有效：github.com/Flipboard/bottomsheet 实际上它在我的 mainactivity 类中工作，但它在我的问题的适配器类中不起作用，我想在用户长按 recyclerview 项目时打开底页。 【参考方案1】：您可以使用底页对话框或底页对话框片段在适配器类中显示底页
BottomSheetDialog 示例
View view = ((FragmentActivity)context).getLayoutInflater().inflate(R.layout.fragment_bottom_sheet, null);
BottomSheetDialog dialog = new BottomSheetDialog(mContext);
dialog.setContentView(view);
dialog.show();
你也可以使用 BottomsheetDialogFragment
BottomsheetDialogFragment 示例
对话框类
public class BottomsheetDialog extends BottomSheetDialogFragment
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState)
View v=inflater.inflate(R.layout.fragment_bottom_sheet,container,false);
return v;
像这样在适配器类中调用 BottomsheetDialog
BottomSheetDialogFragment bottomSheetDialogFragment = new BottomsheetDialog();
bottomSheetDialogFragment.show(((FragmentActivity)mContext).getSupportFragmentManager(), bottomSheetDialogFragment.getTag());
欲了解更多信息，请查看以下链接
Link1
Link2
【讨论】：
很好的答案 非常感谢，即使我也面临同样的问题，但您的最后一个回答对我有所帮助。干杯！【参考方案2】：private void openBottomSheet(View v)
//View view = activity.getLayoutInflater ().inflate (R.layout.bottom_sheet, null);
// View view = inflater.inflate( R.layout.bottom_sheet, null );
Context context=v.getContext();
LayoutInflater inflater = (LayoutInflater) context.getSystemService( Context.LAYOUT_INFLATER_SERVICE );
View view = inflater.inflate (R.layout.bottom_sheet, null);
TextView txtBackup = (TextView)view.findViewById(R.id.txt_backup);
TextView txtDetail = (TextView)view.findViewById(R.id.txt_detail);
TextView txtOpen = (TextView)view.findViewById(R.id.txt_open);
final TextView txtUninstall = (TextView)view.findViewById( R.id.txt_backup);
final Dialog mBottomSheetDialog = new Dialog (context, R.style.MaterialDialogSheet);
mBottomSheetDialog.setContentView (view);
mBottomSheetDialog.setCancelable (true);
mBottomSheetDialog.getWindow ().setLayout (LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
mBottomSheetDialog.getWindow ().setGravity (Gravity.BOTTOM);
mBottomSheetDialog.show ();
txtBackup.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View v)
Toast.makeText(v.getContext(),"Clicked Backup",Toast.LENGTH_SHORT).show();
mBottomSheetDialog.dismiss();
);
txtDetail.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View v)
Toast.makeText(v.getContext(),"Clicked Detail",Toast.LENGTH_SHORT).show();
mBottomSheetDialog.dismiss();
);
txtOpen.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View v)
Toast.makeText(v.getContext(),"Clicked Open",Toast.LENGTH_SHORT).show();
mBottomSheetDialog.dismiss();
);
txtUninstall.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View v)
Toast.makeText(v.getContext(),"Clicked Uninstall",Toast.LENGTH_SHORT).show();
mBottomSheetDialog.dismiss();
);
使用它为我工作的代码对 xml 文件进行小的更改
【讨论】：
伙计，你太棒了：D。希望成为我的朋友，一起在很酷的项目中工作以上是关于在我的 recyclerview 适配器类中实现 Android 底页的主要内容，如果未能解决你的问题，请参考以下文章
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