AlertDialog's items not displayed

I create an AlertDialog with an AlertDialog.Builder and set some items with setItems(). The dialog is shown but I cannot see any of the items. All I see is the message.

final CharSequence[] items = {"Red", "Green", "Blue"};

AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(activity);
dialogBuilder.setMessage("Pick a color");
dialogBuilder.setItems(items, new DialogInterface.OnClickListener() {        
    public void onClick(DialogInterface dialog, int which) {
        // Do anything you want here
    }    
});

dialogBuilder.create().show();

If I set the PositiveButton, I can see that button just fine. I also tried setting MultiChoiceItems and SingleChoiceItems but neither of these work either.

Use setTitle instead of setMessage which sets message body and overrides the items list.

Why don't you go for setTitle instead of the setMessage? Try with setTitle("Pick a color").

I hope it will help you.

If you want to set a message AND items, just use setCustomTitle() with a TextView like so:

dialogBuilder.setCustomTitle(TextView(context).apply {
    setPadding(
       16.dpToPx().toInt(),
       16.dpToPx().toInt(),
       16.dpToPx().toInt(),
       0
    )
    setText(it.message)
    setTextColor(Color.BLACK)
    textSize = 18f
})
dialogBuilder.setItems(...)

Note, that you cannot set a title this way, but of course you could create a custom title layout which support setting both the title AND the message.

dpToPx() is just a simple conversion extension function and not in the scope of your question, but here it is for completeness sake:

@JvmOverloads
@Dimension(unit = Dimension.PX)
fun Number.dpToPx(
    metrics: DisplayMetrics = Resources.getSystem().displayMetrics
): Float {
    return toFloat() * metrics.density
}

Try alertDialogBuilder.setCustomTitle(view)

Use Below Code:-

final CharSequence[] items = {"Red", "Green", "Blue"};
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(activity);
dialogBuilder.setTitle("Pick a color");
dialogBuilder.setItems(items, new DialogInterface.OnClickListener() {

    public void onClick(DialogInterface dialog, int which) {
        // Do anything you want here
    }

});
dialogBuilder.create().show();

try this

final CharSequence[] items = {"Red", "Green", "Blue"};
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(activity);
dialogBuilder.setTitle("Pick a color");
dialogBuilder.setSingleChoiceItems(items,-1, new DialogInterface.OnClickListener()
@Override
public void onClick(DialogInterface dialog, int which) 
{
}
});
dialogBuilder.show();

If you are using a resource string array you must include the resource packaging. context().getResources().getStringArray(R.array.items);

My list was not showing by using the R.array.items until i gave the pointer the context and resource packaging.

Good luck!