“ArrayAdapter requires the resource ID to be a TextView” issue

Question

I seem to have problems using custom styles for ListView.

All online searches (stackOverflow and other sites) pty much say the same: - create an my_style.xml layout file. - use it in the adapter.

But for some reason this doesn't seem to be working for me. MainAct.java:

arrayAdapter = new ArrayAdapter<String>(this, android.R.layout.list_content, items);

XML file:

<?xml version="1.0" encoding="utf-8"?>
<TextView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/textview"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:textColor="#0000DD"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    />

saved as /res/layout/list_content.xml.

If I use the android.R.layout.simple_list_item_1 everything works fine, with the own xml file I get "java.lang.IllegalStateException: ArrayAdapter requires the resource ID to be a TextView".

Any ideas?

PS: I already looked at lots of other very similar questions/issues, including:

"ArrayAdapter requires the resource ID to be a TextView" xml problems

How to set the text at center in ListView android application?

Android ListView Text Color

score 1 · Accepted Answer · answered Feb 09 '16 at 14:35

As error java.lang.IllegalStateException: ArrayAdapter requires the resource ID to be a TextView clearly says. You need to pass the textview on which you need to show the data. Also, when you are using your own layout then R.java should belong to your project not android.R.

Change

arrayAdapter = new ArrayAdapter<String>(this, android.R.layout.list_content, items);

to

arrayAdapter = new ArrayAdapter<String>(this, R.layout.list_content, R.id.textview, items);

score 1 · Answer 2 · answered Feb 09 '16 at 14:45

Issue is because of you are passing wrong type of argument.

After seeing your code I can say you want to use following version of ArrayAdapter.

public ArrayAdapter (Context context, int resource, int textViewResourceId, List<T> objects)

So following will work for you according to the code snippet provided by you.

arrayAdapter = new ArrayAdapter<String>(this, R.layout.list_content, R.id.textview, items);

for different versions of arrayAdapter you can refer to : http://developer.android.com/reference/android/widget/ArrayAdapter.html

score 0 · Answer 3 · answered Feb 09 '16 at 14:33

0

What you are doing is declaring xml in your package and trying to access it from android.R.layout package. So, change

arrayAdapter = new ArrayAdapter<String>(this, android.R.layout.list_content, items);

to

arrayAdapter = new ArrayAdapter<String>(this, R.layout.list_content, items);

It'll work

answered Feb 09 '16 at 14:33

ELITE

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I have the second and still don't work... if my list.xml file contains 2 textview do I need to pass all of them to my arrayAdapter? thanks – miatech May 03 '17 at 19:00

score 0 · Answer 4 · answered Aug 15 '22 at 20:31

don't return the super.getView(...)-Method in getView()

   override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
     return super.getView(position, convertView, parent)
   }

instead, return your inflated view

    override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
    val view: View

    if (convertView == null) {
        view = LayoutInflater.from(context).inflate(resourceId, parent, false)
    } else {
        view = convertView
    }

        return view
    }

“ArrayAdapter requires the resource ID to be a TextView” issue

4 Answers4

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