002 ChipView Constructors / Intro

ChipView.kt

/**
 * A simple ChipView class for chips in Android. Provides image, text, and listener
 * functionality.
 */
class ChipView: LinearLayout {

    constructor(context: Context) : this(context, null)
    constructor(context: Context, attrs: AttributeSet?) : this(context, attrs, 0)
    constructor(context: Context, attrs: AttributeSet?, defStyleAttr: Int) : super(context, attrs, defStyleAttr) {

        // Load the correct layout for this view
        inflate(context, R.layout.view_chip, this)

        // Display attributes only after the view has been inflated
        val attributes = context.theme.obtainStyledAttributes(
                attrs,
                R.styleable.ChipView,
                defStyleAttr, 0)

        try {

            // Set the initial text for this label
            text = attributes.getString(R.styleable.ChipView_text)

            // We set the imageURL last since it takes precedence over a given resource.
            // We also still set the resource in case the user wants to use it as a default
            imageResource = attributes.getDrawable(R.styleable.ChipView_imageSrc)
            imageURL = attributes.getString(R.styleable.ChipView_imageURL)

            // We then initially hide the remove icon (a listener may be added later)
            displayRemoveIcon()

        } finally {
            attributes.recycle()
        }

    }
  
  ...
  
}