Android - exit activity on item click in recycler view

Question

I've got a bunch of list items in my RecyclerView. I am handling the clicks properly for each item, but I need to close the activity when any item is clicked. Becuase RecyclerView doesn't have setOnItemClickListener method, I have to do this within the adapter:

@Override
public void onBindViewHolder(final Holder holder, int position) {
    // ...

    holder.flagNameTextView.setText(arrayList.get(position).getName());

    holder.itemView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            // Go back to the previous activity
            // such as onBackPressed();
        }
    });
}

But of course, the adapter is not extending the Activity, so I can't use onBackPressed() or finish().

How can I do this?

Possible duplicate of [Calling activity from ViewHolder in RecyclerView?](http://stackoverflow.com/questions/25688620/calling-activity-from-viewholder-in-recyclerview) — OneCricketeer, Mar 05 '17 at 18:59
@Prajnan Bhuyan Yes, but like I said in the question, I can't use the `finish()` method because the click is within the adapter which is NOT extending `Activity` class. — busuu, Mar 05 '17 at 18:59
Pass the context object in the constructor of the Adapter and call context.finish() wherever you want your activity to be finished [See this](http://stackoverflow.com/q/32136973/681929) — nobalG, Mar 05 '17 at 19:00
@Prajan You cannot call finish from an Adapter class @ Milan You need to "extract" the click event from the Adapter and set it from the Activity... and that's been addressed several places — OneCricketeer, Mar 05 '17 at 19:00

score 2 · Accepted Answer · answered Mar 05 '17 at 18:59

2

Use the Following:

Declare context globally.

Context c;

Then type-cast context with your activity.

((YourActivity)c).finish();

Hope this helps.

answered Mar 05 '17 at 18:59

tahsinRupam

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Coupling the adapter to the activity is a bad idea – OneCricketeer Mar 05 '17 at 19:01
@cricket_007 why is it a bad idea? What would you suggest? – busuu Mar 05 '17 at 19:03
should getActivity() improve the situation? – tahsinRupam Mar 05 '17 at 19:04
@Milan See the duplicate I flagged – OneCricketeer Mar 05 '17 at 19:04

score 1 · Answer 2 · answered Mar 05 '17 at 18:59

1

You can pass a reference of your activity throw the adapter constructor and call Activity.finish();

Hope this Helps.

Sorry for my english.

answered Mar 05 '17 at 18:59

Cochi

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score 0 · Answer 3 · answered Mar 05 '17 at 19:02

0

You can get the context from the flagNameTextView :

((Activity)holder.flagNameTextView.getContext()).finish();

answered Mar 05 '17 at 19:02

Nika Kurdadze

2,502
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score 0 · Answer 4 · answered Mar 06 '17 at 03:36

0

Besides, you can define a interface callback like OnClickListener in RecyclerView adapter. Then Implement this interface in Activity, pass it into the adapter and then use it in View's OnClickListner callback.

answered Mar 06 '17 at 03:36

Jack_Zhang

11
3

score -1 · Answer 5 · answered Mar 05 '17 at 19:04

-1

Just use YourActivityName.this.finish().

By adding the Activity name you are telling android which "this" you want.

This will only work if your adapter is NOT defined as a static class.

answered Mar 05 '17 at 19:04

theblitz

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Android - exit activity on item click in recycler view

5 Answers5