我想设置这个图标，就像用户想要标记这一章一样，因为它会读取这个图标，所以它会切换到另一个图标

Question

我想设置这个图标，就像用户想要标记这一章一样，因为它会阅读点击这个图标，所以它会切换到另一个图标。

我的文件： SeptCoursAdapter.java

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

private Context mContext;
private List<ItemSeptCours> chapList;

public class MyViewHolder extends RecyclerView.ViewHolder {
    public TextView chapitreTitle;
    public TextView  nbHeures;
    public ImageView pecLue;

    public MyViewHolder(View view) {
        super(view);
        chapitreTitle = (TextView) view.findViewById(R.id.chapitre_title);
        nbHeures = (TextView) view.findViewById(R.id.nb_heure);
        pecLue = (ImageView) view.findViewById(R.id.image_lue);
    }
}


public SeptCoursAdapter(Context mContext, List<ItemSeptCours> chapList) {
    this.mContext = mContext;
    this.chapList = chapList;
}

@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View itemView = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.card_item_7_cours, parent, false);

    return new MyViewHolder(itemView);
}

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

   ItemSeptCours itemSeptCours = chapList.get(position);
    holder.chapitreTitle.setText(itemSeptCours.getChapitreTitle());
    holder.nbHeures.setText(itemSeptCours.getNbHeures());
    Glide.with(mContext).load(itemSeptCours.getPecLue()).into(holder.pecLue);


    holder.pecLue.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {


            if(holder.pecLue.getVisibility()== View.VISIBLE)
                holder.pecLue.setVisibility(View.INVISIBLE);
        }
    });

}

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

}

CoursSeptFragment.java

public class CoursSeptBaseFragment extends Fragment {
@Nullable
private RecyclerView recyclerView;
private RecyclerView.Adapter adapter;
private List<ItemSeptCours> chapList;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    View view = inflater.inflate(R.layout.cours_sept_base_fragment, container, false);

    recyclerView = (RecyclerView) view.findViewById(R.id.recyclerView_sept);

    chapList = new ArrayList<>();
    adapter = new SeptCoursAdapter(view.getContext(), chapList);


    if (recyclerView != null) {
        recyclerView.setHasFixedSize(true);
    }


    RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(view.getContext());
    recyclerView.setLayoutManager(mLayoutManager);
    recyclerView.setAdapter(adapter);


    prepareChapitre();

    return view;
}


private void prepareChapitre() {

    int[] luePecTab = new int[]{
            R.drawable.ic_visibility_black_18dp_blue,
            R.drawable.ic_visibility_off_black_18dp_blue};

    ItemSeptCours a = new ItemSeptCours("Chap 1: Ordinateur et systèmes d'exploitation", "4 séances", luePecTab[0]);
    chapList.add(a);

    a = new ItemSeptCours("Chap 2: Exploitations de logiciels", "4 séances", luePecTab[0]);
    chapList.add(a);

    a = new ItemSeptCours("Chap 3: L'Internet : Le web", "4 séances", luePecTab[0]);
    chapList.add(a);

    a = new ItemSeptCours("Un mini projet", "6 séances", luePecTab[0]);
    chapList.add(a);

    adapter.notifyDataSetChanged();
}

}

Answer 1

我想你快到了。（假设 pecLue 是你的小眼睛图像）

伪代码：

     holder.pecLue.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            //if(holder.pecLue.getVisibility()== View.VISIBLE)
            //    holder.pecLue.setVisibility(View.INVISIBLE);

           if(conditionIfChapterIsMarked){
               holder.pecLue.setImageResource(R.drawable.pec_lue_icon_unmarked);
               //unmarkChapterLogic()
           }else{
               holder.pecLue.setImageResource(R.drawable.pec_lue_icon_marked); 
               //markChapterLogic()
           } 
        }
    });

我想设置这个图标，就像用户想要标记这一章一样，因为它会读取这个图标，所以它会切换到另一个图标

I want to set this icon like if the user wants to mark this chapter as it will read tapper this icon, so it will chancher to another icon

icons

android

click

android-recyclerview

cardview