Issue in Searching in Dialog Fragments

Question

Searching Option is not working properly in dialog fragments.Though i had used same in other app in activity.I am using Recyclerview.

Here is my code in Custom Adapter:

public void filter(final String text) {
    new Thread(new Runnable() {
        @Override
        public void run() {
            filterlist.clear();
            if (TextUtils.isEmpty(text)) {

                filterlist.addAll(bank);

            } else {
                for (Employee item : bank) {
                    if (item.getBank_name().toLowerCase().contains(text.toLowerCase())) {
                        // Adding Matched items
                        filterlist.add(item);

                    }
                }
            }

            ((Activity) context).runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    notifyDataSetChanged();

                }
            });

        }
    }).start();
}

Error is in ((Activity) context).runOnUiThread(new Runnable() ) this line

Logcat:

java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.Activity.runOnUiThread(java.lang.Runnable)' on a null object reference
                                                                             at com.example.abhishek.project.CustomAdapter$1.run(CustomAdapter.java:75)

recyclerview:

@Override
public boolean onQueryTextSubmit(String query) {
    return false;
}

@Override
public boolean onQueryTextChange(String newText) {
    try{
        if(TextUtils.isEmpty(newText)){
            ca.filter("");
        }
        else{
            ca.filter(newText.toString());
        }

private void setupSearchView() {
    search.setIconifiedByDefault(false);
    search.setOnQueryTextListener(this);
    search.setSubmitButtonEnabled(true);
    search.setQueryHint("Search Here");

}

Possible duplicate of [What is a NullPointerException, and how do I fix it?](http://stackoverflow.com/questions/218384/what-is-a-nullpointerexception-and-how-do-i-fix-it) — earthw0rmjim, Sep 06 '16 at 05:59
Adding items in the list and calling `notifyDatasetChanged()` should be done in the activity or fragment where adapter is getting initialized. — Faraz, Sep 06 '16 at 06:29
use [this](https://gist.github.com/pskink/cd3bbdd742b5b1905a790c76831b5d85) generic adapter — pskink, Sep 06 '16 at 06:36

score 0 · Answer 1 · edited Sep 06 '16 at 06:09

0

You have get Activity context like this in DialogFragment:

getActivity().runOnUiThread(new Runnable() {
    @Override
    public void run() {
        notifyDataSetChanged();
    }
});

edited Sep 06 '16 at 06:09

earthw0rmjim

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answered Sep 06 '16 at 06:05

Burhanuddin Rashid

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yup but getActivity is not working in CustomAdapter and I want it in Custom Adapter – Abhi Sep 06 '16 at 06:13
from where you passing your `context` can you post that code? – Burhanuddin Rashid Sep 06 '16 at 06:16
Context is passing in CustomAdapter and it is already posted,method filter. – Abhi Sep 06 '16 at 06:22

Issue in Searching in Dialog Fragments

1 Answers1