Get the position of a recyclerview item when I click on an imagebutton in another activity

Question

I will try to be as clear as possible:

I have an application with a recyclerview, when the user clicks on a recyclerview item, he opens a new activity that starts playing a video directly.

In this new activity (the one that contains videoview) I have inserted three imagebutton to allow the user to share, like or download the video while watching it.

My question is how to define the listener of each imagebutton in order to perform a precise action on the selected recyclerview item.

So I would like the user to download the video he is looking at, ie the one that corresponds to the selected item.

Here is my recyclerview Adapter:

public class Adapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {

private Context context;
private LayoutInflater inflater;
private List<Data> data= Collections.emptyList();
Data current;
private EditText editText;
private String GetName;
private int currentPos=0;

// create constructor to innitilize context and data sent from MainActivity
public Adapter(Context context, List<Data> data){
    this.context=context;
    inflater= LayoutInflater.from(context);
    this.data=data;
}

// Inflate the layout when viewholder created
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View view=inflater.inflate(R.layout.container, parent,false);
    MyHolder holder=new MyHolder(view);
    return holder;
}

// Bind data
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) {

    // Obtenir la position actuelle de l'élément dans recyclerview pour lier les données et affecter des valeurs à partir de la liste
    MyHolder myHolder= (MyHolder) holder;
    Data current = data.get(position);

    myHolder.textFishName.setText(current.catName);
    myHolder.textSize.setText(current.sizeName);
    myHolder.textSize.setVisibility(View.GONE);
    myHolder.textType.setText(current.fishName);
    myHolder.textPrice.setText("" + current.price + "");
    myHolder.textPrice.setVisibility(View.GONE);
    myHolder.textPrice.setTextColor(ContextCompat.getColor(context, R.color.colorAccent));

    // load image into imageview using glide
    Glide.with(context).load("http://192.168.43.196/vibe2/images/" + current.fishImage)
            .placeholder(R.drawable.ic_menu_camera)
            .error(R.drawable.ic_menu_camera)
            .into(myHolder.ivFish);

}

// return total item from List
@Override
public int getItemCount() {
    return data.size();
}


class MyHolder extends RecyclerView.ViewHolder {

    TextView textFishName;
    ImageView ivFish;
    TextView textSize;
    TextView textType;
    TextView textPrice;
    TextView counter;
    TextView id;
    ImageButton imageButton;


    // create constructor to get widget reference
    public MyHolder(View itemView) {
        super(itemView);
        editText = itemView.findViewById(R.id.editText);
        textFishName = itemView.findViewById(R.id.textFishName);
        ivFish = itemView.findViewById(R.id.ivFish);
        textSize = itemView.findViewById(R.id.textSize);
        textType = itemView.findViewById(R.id.textType);
        textPrice = itemView.findViewById(R.id.textPrice);
        counter = itemView.findViewById(R.id.counter);
    }
   }
}

My RecyclerView:

RecycleClick.addTo(recyclerView).setOnItemClickListener(new RecycleClick.OnItemClickListener() {
                @Override
                public void onItemClicked(RecyclerView recyclerView, int position, View v) {
                        Intent intent = new Intent(MainActivity.this, PlayVideo.class);
                        intent.putExtra("url", data.get(position).sizeName);
                        intent.putExtra("name", data.get(position).fishName);
                        intent.putExtra("titre", data.get(position).catName);
                        startActivity(intent);
                        overridePendingTransition(R.anim.activity_back_in, R.anim.activity_back_out);
                        finish();
                }
            });

Here is how I get and use the position in my second activity but it does not seem to work. no matter what element I click toast the condition is not true.

final int position = getIntent().getIntExtra("a",-1);

sparkButton1.setEventListener(new SparkEventListener(){
        @Override
        public void onEvent(ImageView button, boolean buttonState) {
            if (position == 0) {
                Toast.makeText(PlayVideo.this, "welcome", Toast.LENGTH_LONG).show();
            }else if (position ==1){
                Toast.makeText(PlayVideo.this, "exit", Toast.LENGTH_LONG).show();
            }
        }

RoyalGriffin · Answer 1 · 2018-06-28T09:59:11.510

If your list item contains the information to like, download or share the video, for e.g., a unique id or an url to download the video, then just pass the item to the second activity in the intent and do those tasks there.
If you really want to get the callback to the previous activity, for your imageButtons click you can use BroadcastReceiver.

Update, after your last edit
You are not sending anything in your intent with the key "a". Hence you are not getting any.

score 0 · Answer 2 · 2018-06-28T08:42:31.627

0

In order to access the recyclerview's clicked position in the 2nd activity you can:
a) pass extra data to the intent that opens the activity, like the position of the item clicked:

intent.putExtra("position", position);

and you read it back in your 2nd activity with int position = getIntent().getIntExtra("position", -1)

or

b) use a static variable in another class like:

public final class AppData {
    public static int currentPos = -1;
}

and your onClick will be:

    public void onClick(View view) {
        AppData.currentPos = position;
        showPosition(position);
    }

so you can access AppData.currentPos in your 2nd Activity.

Of course you must remove private int currentPos=0; from your adapter class which you don't use anyway.

edited Jun 28 '18 at 08:42

answered Jun 28 '18 at 07:35

how to convey the position of an element in an intent? – pharaon Jun 28 '18 at 08:12
Go to – Jun 28 '18 at 08:19
I know how to transmit the data from one activity to another. The problem is to transmit the position of the recyclerView item. I updated my question please check – pharaon Jun 28 '18 at 08:25
I recommend -1, just to check if there is an error. – Jun 28 '18 at 08:48
If position is -1 this means there's an error (this is the meaning of default value in this case), so change to `if (position >= 0) {` – Jun 28 '18 at 08:57
that does not always check the condition – pharaon Jun 28 '18 at 09:06
Did you write `>=0` because I see `==0` in your code – Jun 28 '18 at 09:08
oui j'ai écrit `position >= 0` – pharaon Jun 28 '18 at 09:09
So where else do you need and use `position`? – Jun 28 '18 at 09:13
I need to execute a specific action depending on the position of the element. for example, if the user clicked on the first element, a toast that says "first element" if it clicks on the seventh element, a toast that says "seventh element" and so on. – pharaon Jun 28 '18 at 09:17
So you can check for the value of position with an `if ... else` or a `switch` – Jun 28 '18 at 09:20
that's what I've been trying since but the condition is never checked except for the default – pharaon Jun 28 '18 at 09:25
what condition? – Jun 28 '18 at 09:35
`if ... else` condition – pharaon Jun 28 '18 at 09:41
`if (position == 0) {...} else if (position == 1) {...} else ...` and so on – Jun 28 '18 at 09:43
when I do that the nothing happens – pharaon Jun 28 '18 at 09:48
no toast is displayed and no error is reported. is normal? – pharaon Jun 28 '18 at 09:50
Update your `RecycleClick.addTo(recyclerView)` so I can see the intent you call and the `onCreate` of your 2nd activity. – Jun 28 '18 at 09:54
thanks for your help i finally found how to do it by pure hazard. check my answer please. – pharaon Jun 28 '18 at 10:45
That is what I recommended 2 hours ago! – Jun 28 '18 at 10:50

score 0 · Accepted Answer · answered Jun 28 '18 at 10:43

I finally found the solution by doing this:

RecycleClick.addTo(recyclerView).setOnItemClickListener(new RecycleClick.OnItemClickListener() {
                @Override
                public void onItemClicked(RecyclerView recyclerView, int position, View v) {
                        Intent intent = new Intent(MainActivity.this, PlayVideo.class);
                        intent.putExtra("position", position);
                        startActivity(intent);
                }
            });

Then adding this in my second activity:

 if (extras != null) {
        final int position = extras.getInt("position");
        sparkButton1.setEventListener(new SparkEventListener() {

            @Override
            public void onEvent(ImageView button, boolean buttonState) {
                if (position == 0) {
                    Toast.makeText(PlayVideo.this, "welcome", Toast.LENGTH_LONG).show();
                } else if (position == 1) {
                    Toast.makeText(PlayVideo.this, "exit", Toast.LENGTH_LONG).show();
                }
            }

Get the position of a recyclerview item when I click on an imagebutton in another activity

3 Answers3