Question

我一直试图让单击TextView时出现一个选项菜单。我已经能够做到这一点。但是现在当我单击该行时，我无法进入下一个活动。

这是我在MainActivity中的代码

//On Long Click On The RecyclerView Item An Alert Dialog Is Opened With The Option To Choose Edit/Delete
        recyclerView.addOnItemTouchListener(new RecyclerTouchListener(this, recyclerView, new RecyclerTouchListener.ClickListener() {
            @Override
            public void onClick(View view, final int position) {
                TextView buttonViewOption = (TextView) view.findViewById(R.id.textViewOptions);
                TextView rowItem = (TextView) view.findViewById(R.id.rowItem);
                buttonViewOption.setOnClickListener(new View.OnClickListener() {

                    @Override
                    public void onClick(View view) {

                        //creating a popup menu
                        PopupMenu popup = new PopupMenu(MainActivity.this, buttonViewOption);
                        //inflating menu from xml resource
                        popup.inflate(R.menu.options_menu);
                        //adding click listener
                        popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
                            @Override
                            public boolean onMenuItemClick(MenuItem item) {
                                switch (item.getItemId()) {
                                    case R.id.menu1:
                                        //handle menu1 click
                                        break;
                                    case R.id.menu2:
                                        break;
                                    case R.id.menu3:
                                        showLeagueDialog(true, leaguesList.get(position), position);
                                        break;
                                    case R.id.menu4:
                                        deleteLeague(position);
                                        break;
                                }
                                return false;
                            }
                        });
                        //displaying the popup
                        popup.show();

                    }
                });
            }
               /*int leagueId = leaguesList.get(position).getId();
                Intent myIntent = new Intent(MainActivity.this, BowlerActivity.class);
                myIntent.putExtra("leagueId", leagueId);
                startActivity(myIntent);
                overridePendingTransition(0, 0);*/
        @Override
        public void onRowClick(View view, int position) {
                    int leagueId = leaguesList.get(position).getId();
                    Intent myIntent = new Intent(MainActivity.this, BowlerActivity.class);
                    myIntent.putExtra("leagueId", leagueId);
                    startActivity(myIntent);
                    overridePendingTransition(0, 0);
                }



            @Override
            public void onLongClick(View view, int position) {
                showActionsDialog(position);
            }
        }));
    }

RecyclerTouchListener.java

public class RecyclerTouchListener implements RecyclerView.OnItemTouchListener {

    private ClickListener clicklistener;
    private GestureDetector gestureDetector;

    public RecyclerTouchListener(Context context, final RecyclerView recycleView, final ClickListener clicklistener) {

        this.clicklistener = clicklistener;
        gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
            @Override
            public boolean onSingleTapUp(MotionEvent e) {
                return true;
            }

            @Override
            public void onLongPress(MotionEvent e) {
                View child = recycleView.findChildViewUnder(e.getX(), e.getY());
                if (child != null && clicklistener != null) {
                    clicklistener.onLongClick(child, recycleView.getChildAdapterPosition(child));
                }
            }
        });
    }

    @Override
    public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
        View child = rv.findChildViewUnder(e.getX(), e.getY());
        if (child != null && clicklistener != null && gestureDetector.onTouchEvent(e)) {
            clicklistener.onClick(child, rv.getChildAdapterPosition(child));
        }

        return false;
    }

    @Override
    public void onTouchEvent(RecyclerView rv, MotionEvent e) {

    }

    @Override
    public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {

    }

    public interface ClickListener {
        void onClick(View view, int position);
        void onRowClick(View view, int position);
        void onLongClick(View view, int position);
    }
}

我在该网站上搜索了许多不同的文章，并尝试了会员发布的几种不同的解决方案，但仍然无法进行新的活动。

如何创建onClickListener（）来侦听主行和TextView上的单击。

任何帮助将不胜感激。

BolwerAdapter.java

public class BowlerAdapter extends RecyclerView.Adapter<BowlerAdapter.MyViewHolder> {

    private List<Bowler> bowlersList;

    public void notifyDatasetChanged(List<Bowler> newbowlerlist) {
        bowlersList.clear();
        bowlersList.addAll(newbowlerlist);
        super.notifyDataSetChanged();
    }

    public class MyViewHolder extends RecyclerView.ViewHolder {
        private TextView bowlerLeagueId;
        private TextView name;
        private TextView bowlerAverage;
        private TextView bowlerHandicap;
        private TextView timestamp;

        MyViewHolder(View view) {
            super(view);
            bowlerLeagueId = view.findViewById( R.id.tvLeagueId);
            name = view.findViewById(R.id.tvBowlerName);
            bowlerAverage = view.findViewById(R.id.tvBowlerAverage);
            bowlerHandicap = view.findViewById(R.id.tvBowlerHandicap);
            timestamp = view.findViewById(R.id.timestamp);
        }
    }

    BowlerAdapter(Context context, List<Bowler> bowlersList) {
        this.bowlersList = bowlersList;
    }

    @NonNull
    @Override
    public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View itemView = LayoutInflater.from( Objects.requireNonNull( parent ).getContext())
                .inflate(R.layout.listview_bowler, parent, false);

        return new MyViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(@NonNull MyViewHolder holder, int position) {
        Bowler bowler = bowlersList.get(position);

        holder.bowlerLeagueId.setText(bowler.getLeagueId());
        holder.name.setText(bowler.getName());
        if (bowler.getAverage() != "") {
            holder.bowlerAverage.setText(String.format("Bowler Avg: %s", bowler.getAverage()));
        } else {
            holder.bowlerAverage.setText(String.format("Bowler Avg: %s", "0"));
        }
        Integer handicap = Integer.parseInt(bowler.getHandicap());
        if (handicap < 0) {
            holder.bowlerHandicap.setText(String.format("Bowler Handicap: %s", "0"));
        }
        if (bowler.getHandicap() != "" ){
            holder.bowlerHandicap.setText(String.format("Bowler Handicap: %s", bowler.getHandicap()));
        } else {
            holder.bowlerHandicap.setText(String.format("Bowler Handicap: %s", "0"));
        }
        //Formatting And Displaying Timestamp
        holder.timestamp.setText(formatDate(bowler.getTimestamp()));
    }

    @Override
    public int getItemCount() {
        return bowlersList.size();
    }

    //Formatting TimeStamp to 'EEE MMM dd yyyy (HH:mm:ss)'
    //Input  : 2018-05-23 9:59:01
    //Output : Wed May 23 2018 (9:59:01)
    private String formatDate(String dateStr) {
        try {
            SimpleDateFormat fmt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            Date date = fmt.parse(dateStr);
            SimpleDateFormat fmtOut = new SimpleDateFormat("EEE MMM dd yyyy (HH:mm:ss)");
            return fmtOut.format(date);
        } catch (ParseException ignored) { }

        return "";
    }
}

我已经能够通过将onClick（）设置为在TextView上激活来使其工作。这是不理想的，因为我似乎不得不双击文本才能切换活动。

我在MainActivity中的代码

recyclerView.addOnItemTouchListener(new RecyclerTouchListener(this, recyclerView, new RecyclerTouchListener.ClickListener() {

            @Override
            public void onRowClick(View view, int position) {
                TextView listviewClick = (TextView) view.findViewById(R.id.tvSeriesName);
                listviewClick.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        int leagueId = leaguesList.get(position).getId();
                        Intent myIntent = new Intent(MainActivity.this, BowlerActivity.class);
                        myIntent.putExtra("leagueId", leagueId);
                        startActivity(myIntent);
                        overridePendingTransition(0, 0);
                    }
                });
            }

            @Override
            public void onClick(View view, final int position) {
                TextView buttonViewOption = (TextView) view.findViewById(R.id.textViewOptions);
                buttonViewOption.setOnClickListener(new View.OnClickListener() {

                    @Override
                    public void onClick(View view) {

                        //creating a popup menu
                        PopupMenu popup = new PopupMenu(MainActivity.this, buttonViewOption);
                        //inflating menu from xml resource
                        popup.inflate(R.menu.options_menu);
                        //adding click listener
                        popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
                            @Override
                            public boolean onMenuItemClick(MenuItem item) {
                                switch (item.getItemId()) {
                                    case R.id.menu1:
                                        //handle menu1 click
                                        break;
                                    case R.id.menu2:
                                        break;
                                    case R.id.menu3:
                                        showLeagueDialog(true, leaguesList.get(position), position);
                                        break;
                                    case R.id.menu4:
                                        deleteLeague(position);
                                        break;
                                }
                                return false;
                            }
                        });
                        //displaying the popup
                        popup.show(); 
                    }
                }); 
            }

            @Override
            public void onLongClick(View view, int position) {
                showActionsDialog(position);
            }
        }));
    }

我的listview xml文件：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:autofit="http://schemas.android.com/apk/res-auto"
    android:id="@+id/rowItem"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:clickable="true"
    android:focusable="true"
    android:foreground="?attr/selectableItemBackground"
    android:paddingBottom="@dimen/dimen_10"
    android:paddingLeft="@dimen/activity_margin"
    android:paddingRight="@dimen/activity_margin"
    android:paddingTop="@dimen/dimen_10">

    <me.grantland.widget.AutofitTextView
            android:id="@+id/tvSeriesName"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:maxLines="2"
            android:singleLine="true"
            android:text="@string/leagueValue"
            android:textColor="?attr/colorAccent"
            android:textSize="24sp"
            android:textStyle="bold"
            autofit:minTextSize="16sp" />

        <TextView
            android:id="@+id/tvLeagueAverage"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentStart="true"
            android:layout_below="@+id/tvSeriesName"
            android:layout_marginStart="0dp"
            android:text="League Average: 300"
            android:textColor="#000000"
            android:textSize="12sp" />

        <TextView
            android:id="@+id/timestamp"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/tvSeriesName"
            android:layout_centerHorizontal="true"
            android:text="Fri May 18 2018"
            android:textColor="?attr/colorText1"
            android:textSize="10sp"
            android:visibility="gone" />

        <TextView
            android:id="@+id/tvLeagueId"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignEnd="@+id/tvSeriesName"
            android:layout_below="@+id/timestamp"
            android:text="TextView"
            android:textColor="?attr/colorText1"
            android:visibility="gone" />

        <TextView
            android:id="@+id/tvBaseScore"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="TextView"
            android:textColor="?attr/colorText1"
            android:visibility="gone" />

        <TextView
            android:id="@+id/tvBaseScorePercentage"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="TextView"
            android:textColor="?attr/colorText1"
            android:visibility="gone" />

        <View
            android:id="@+id/divider"
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:layout_alignParentTop="true"
            android:layout_centerHorizontal="true"
            android:layout_marginTop="66dp"
            android:background="?attr/colorAccent" />

        <TextView
            android:id="@+id/textViewOptions"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_alignParentTop="true"
            android:paddingLeft="@dimen/activity_horizontal_margin"
            android:text="&#8942;"
            android:textAppearance="?android:textAppearanceLarge" />

    </RelativeLayout>

但是，当我使用RelativeLayout listviewClick = view.findViewById（R.id.rowItem）;时，我只能单击该行，而不能单击选项菜单。

Answer 1

您需要创建一个自定义适配器类

BowlerAdapter.java

public class BowlerAdapter extends RecyclerView.Adapter<BowlerAdapter.MyViewHolder> {

    private LayoutInflater inflater;

    List<Bowler> data= Collections.emptyList();

    public BowlerAdapter(Context context, List<BowlerAdapter> data) {
       inflater= LayoutInflater.from(context);
        this.data=data;

    }



    @Override
    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view=inflater.inflate(R.layout.layout_recycler_view_single, parent, false);
        MyViewHolder holder=new MyViewHolder(view);
        return holder;
    }

    @Override
    public void onBindViewHolder(MyViewHolder holder, int position) {

        BowlerAdapter current=data.get(position);
        holder.header.setText(current.header);
        holder.image.setImageResource(current.image);
        //.....
    }

    @Override
    public int getItemCount() {
        return data.size();
    }

    class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{

        CTextView header;
        ImageView image;

        public MyViewHolder(View itemView) {
            super(itemView);
            header= (CTextView) itemView.findViewById(R.id.aap_tv_header);
            image= (ImageView) itemView.findViewById(R.id.aap_img_dog_s);
            itemView.setOnClickListener(this);
        }

        @Override
        public void onClick(View view) {
            int pos = getAdapterPosition();
            BowlerAdapter current=data.get(pos);
            //Now here you can either use switch case or if statement to perform action on the basis of position
        }
    }
}

在MainActivity.java

@Nullable
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
recyclerView=(RecyclerView) fragView.findViewById(R.id.rv);
adapter=new BowlerAdapter(getActivity(),getData());
recyclerView.setAdapter(adapter);
LinearLayoutManager llm=new LinearLayoutManager(getActivity());
recyclerView.setLayoutManager(llm);
}


public List<Bowler> getData(){
//Here you will return your ArrayList<Bowler>
}

在activity_main.xml中

<?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="wrap_content"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/f1LinearLayout"
    android:orientation="vertical"
   >

    <android.support.v7.widget.RecyclerView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/rv">

    </android.support.v7.widget.RecyclerView>
</LinearLayout>

这只是示例代码。因此，您可以在此处实现逻辑。也可以有其他方式。

Answer 2

解决方案：

删除recyclerview.onTouchListener... ..我们不再需要它。

在holder对象上的

click侦听器比这更好。请参见下面的以下示例：

类似于holder.bowlerLeagueId.setText(bowler.getLeagueId());，您还可以编写：

holder.bowlerLeagueId.setOnClickListener(....) {
     ........ (Write here)
}

然后，在您的东西（在此处写）中，编写代码以导航至下一个活动。

类似地，您可以对任何holder.viewid.setOnClick等执行此操作。

希望有帮助。

Answer 3

我可以知道您是否在清单文件中注册了BowlerActivity吗？请在点击视图后附加日志。

我看到您初始化了本地侦听器并实现了onLongClick和onTouch，但是您未设置的视图没有将OnClick事件设置为OnRowClick并转移到自定义的侦听器回调

单击行时无法转到新活动

3 个答案: