How to access a view of an included library in Android Studio?

Question

I am using a color picker library from THIS LINK

It works well, and I want to be able to access a certain element from the XML. Here is the code I am interested in:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    tools:context=".ColorPicker">

    <View
        android:id="@+id/colorView"
        android:layout_width="fill_parent"
        android:layout_height="150dp"
        android:elevation="2dp"/> 
     <!--...-->

I am trying to access the item with colorView id. In java code, I have this:

ColorPicker colorPicker = new ColorPicker(additionPractice.this, 0, 0, 0);

I expected to use colorPicker.findViewById(R.id.colorView), but this is null. Is there a way to access this element? I can provide more code if you want, and there is a lot of info in the Github link. I appreciate your help!

Answer 1

colorPicker.show();
View colorView = colorPicker.findViewById(R.id.colorView);

I just try this ,It worked!