Android: Open Dialog On Adapter

How do I open a DialogFragment inside a RecyclerView Adapter, or how do I do it through the main activity? I need to open it by clicking on every view that is added into the Recycl

Solution 1:

This is what I normally do when dealing with recyclerView items click events:

Create a click listener to reuse later.

publicclassRecyclerItemClickListenerimplementsRecyclerView.OnItemTouchListener {
   @SuppressWarnings("CanBeFinal")private OnItemClickListener mListener;

   publicinterfaceOnItemClickListener {
       voidonItemClick(View view, int position);
   }

   @SuppressWarnings("CanBeFinal")private GestureDetector mGestureDetector;

   publicRecyclerItemClickListener(Context context, OnItemClickListener listener) {
       mListener = listener;
       mGestureDetector = newGestureDetector(context, newGestureDetector.SimpleOnGestureListener() {
           @OverridepublicbooleanonSingleTapUp(MotionEvent e) {
              returntrue;
           }
      });
   }

   @OverridepublicbooleanonInterceptTouchEvent(RecyclerView view, MotionEvent e) {
       ViewchildView= view.findChildViewUnder(e.getX(), e.getY());
       if (childView != null && mListener != null && mGestureDetector.onTouchEvent(e)) {
           mListener.onItemClick(childView, view.getChildAdapterPosition(childView));
       }
       returnfalse;
   }

   @OverridepublicvoidonTouchEvent(RecyclerView view, MotionEvent motionEvent) {
   }

   @OverridepublicvoidonRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {

   }}

Then to use it in your Activity, do this:

mRecyclerView.addOnItemTouchListener(new RecyclerItemClickListener(this, new RecyclerItemClickListener.OnItemClickListener() {
        @Override
        public void onItemClick(View view, int position) {
            showDialog();
        }
 }));

I hope this helps!

Solution 2:

Inside your RecyclerviewAdapter, and in the onClick method of the view (the view that clicked shows this dialog), u can place the below code. Edited:

MyDialogFragmentnewFragment= MyDialogFragment.newInstance();
newFragment.show(((Activity) context).getSupportFragmentManager(), "Title");

Note: the "context" is the context of the activity from where the recyclerview is created. (the context variable passed as an argument in the cnstructor of RecyclerviewAdapter.)

Note2: MyDialogFragment is a dialogfragment that u created. In this MyDialogFragment u should have the constructor newInstance()

The MyDialogFragment can look like this:

publicclassMyDialogFragmentextendsDialogFragment {

publicstatic MyDialogFragment newInstance() {
    MyDialogFragmentfrag=newMyDialogFragment();

    return frag;
}

@Overridepublic Dialog onCreateDialog(Bundle savedInstanceState) {
    AlertDialog.Builderbuilder=newAlertDialog.Builder(getActivity());

    // Get the layout inflaterLayoutInflaterinflater= getActivity().getLayoutInflater();

    // Inflate and set the layout for the dialog// Pass null as the parent view because its going in the dialog layout
    builder.setView(inflater.inflate(R.layout.fragment_myDialog, null))
            .setTitle("Title")
            ...
           // Set ur code return builder.create();
   }
}

So now for how to pass the context, from the mainActivity, when u create the adapter n the activity context that u pass to the adapter is the context i m talking about. For Example: the "this" in the code below is the activity context that u will be passing to your adapter. This code is present in ur MainActivity.

MyAdapteradapter1=newMyAdapter(this, array_list);
    mRecyclerView.setAdapter(adapter1);

Solution 3:

Set this on the DialogFragment:

publicstatic myFragment newInstance() {
    returnnew myFragment();
}

Set this on the adapter:

public Activity mcontext;

publicSubjectsAdapter(Activity context){
// Here we're getting the activity's context, // by setting the adapter on the activity with (this)   this.mcontext=context;

}

Show it in through the adapter like this:

myFragmentnewFragment= myFragment.newInstance();
 newFragment.show(mcontext.getFragmentManager(), "Title");