Append Data in Custom list arrayadapter

Question

I have a custom list with image arrayadapter.I need to add some new data into that list arrayadapter.I tried to add data by

your_array_list.add("foo");
your_array_list.add("bar");

but this is not working help me to add data to list view

Here is my adapter class

public ApplicationAdapter(Context context, int textViewResourceId,
            List<ApplicationInfo> appsList) {
        super(context, textViewResourceId, appsList);
        this.context = context;
        this.appsList = appsList;
        packageManager = context.getPackageManager();
    }

    @Override
    public int getCount() {
        return ((null != appsList) ? appsList.size() : 0);
    }

    @Override
    public ApplicationInfo getItem(int position) {
        return ((null != appsList) ? appsList.get(position) : null);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View view = convertView;
        if (null == view) {
            LayoutInflater layoutInflater = (LayoutInflater) context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            view = layoutInflater.inflate(R.layout.snippet_list_row, null);
        }



        ApplicationInfo data = appsList.get(position);
        if (null != data) {
            TextView appName = (TextView) view.findViewById(R.id.app_name);
            TextView packageName = (TextView) view.findViewById(R.id.app_paackage);
            ImageView iconview = (ImageView) view.findViewById(R.id.app_icon);

            appName.setText(data.loadLabel(packageManager));
            packageName.setText(data.packageName);
            iconview.setImageDrawable(data.loadIcon(packageManager));
        }
        return view;
    }

Here is my activity code

applist = checkForLaunchIntent(packageManager.getInstalledApplications(PackageManager.GET_META_DATA));
        ;
        ApplicationAdapter listadaptor = new ApplicationAdapter(AllAppsActivity.this,
                    R.layout.snippet_list_row, applist);

hrskrs · Accepted Answer · 2015-08-28 11:30:21Z

1

If first initialization:

applist.add("foo");
ApplicationAdapter listadaptor = new ApplicationAdapter(AllAppsActivity.this,R.layout.snippet_list_row, applist);

later on if you are willing to add data:

applist.add("foo");
listadaptor.notifyDataSetChanged();

From your code i see that as a parameter of your adapter you are givin a list of objects (List<ApplicationInfo>),so instead of adding string applist.add("foo") you need to add an ApplicationInfo object something like:

ArrayList<ApplicationInfo> yourList = new ArryList<>();
yourList.add(applist);

edited Aug 28, 2015 at 11:30

answered Aug 28, 2015 at 11:00

hrskrs

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6 Comments

vibin reji Over a year ago

I am getting error notice "The method add(ApplicationInfo) in the type List<ApplicationInfo> is not applicable for the arguments (String)"

hrskrs Over a year ago

That error is shown because you have initialized a list of ApplicationInfo objects and trying to add a string to that list. Change List<ApplicationInfo> to List<String> or instead of applist.add("foo"); use applist.add(new ApplicationInfo());

vibin reji Over a year ago

please give me sample code. can u please edit your answer

hrskrs Over a year ago

@vibinreji edited. Hope it helps. But if you clarify your question to tell on what you are trying to achieve maybe we can help you on code refactoring too

vibin reji Over a year ago

thanks...but i dont want add existing package detail.i need to add dummy packages.for example my device dont have twitter app but need add it manually

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