n8ebel

    /*
     * Standard way
     */
//    MarvelAndroid.getInstance().getCharacters(queryParams,
//        new ResponseCallback<com.n8.marveldroid.EntityModelObjects.Character>() {
//          @Override
//          public void onRequestComplete(List<Character> responseEntities, Throwable error) {
//            if (error != null) {
//              mResultTextView.setText(error.getLocalizedMessage());
//              return;

n8ebel

This code demonstrates 2 approaches to completing the same task, and performs the following actions:

1. The task is to hit the Marvel rest endpoint, and return a list of characters.
2. Take the 4th character in that list, fetch its comics, and then load the image for that comic.
3. Once those requests are done, the image and list of character names are bound to the ui.

    /*
     * Standard way
     */

n8ebel

Simple illustration of responding to text changed events on an EditText.

/*
 *  RxJava
 */
RxTextView.textChangeEvents(mEditText)
    .subscribe(event -> mResultTextView.setText(event.text()));

/*

n8ebel

val binding = DataBindingUtil.setContentView<ActivityMainBinding>(this, R.layout.activity_main).apply {
  message = "hello"
  number = 5
}

n8ebel

inline fun <T : ViewDataBinding> T.bindData(block: T.() -> Unit): T { block(); return this }

n8ebel

@BindingAdapter("imageUrl")
fun setProgress(view: ImageView, url: String) {
    Glide.with(view.context)
            .load(url)
            .error(R.drawable.ic_broken_image_black)
            .listener(object : RequestListener<String, GlideDrawable> {
                override fun onException(e: Exception?, model: String?, target: Target<GlideDrawable>?, isFirstResource: Boolean): Boolean {
                    // use this to ensure placeholder icon doesn't stretch to fill too much space
                    view.scaleType = ImageView.ScaleType.CENTER_INSIDE
                    return false

n8ebel

@BindingAdapter("isHeaderVisible")
fun setHeaderVisibility(view: View, isVisible: Boolean) {
    if (view.visibility == View.VISIBLE) {
        if (isVisible) {
            return
        }

        view.animate()
                .alpha(0f)
                .translationY(-1f * view.height)

n8ebel

/**
 * Representation of [Toast] data that can be exposed by a view model, observed, and bound to
 * the current UI
 */
sealed class ToastData

data class ShortToast(@StringRes val msgId:Int) : ToastData()
data class LongToast(@StringRes val msgId:Int) : ToastData()

n8ebel

viewModel.toastPub.subscribe { toastData ->
    when(toastData) {
        is ShortToast -> Toast.makeText(this, toastData.msgId, Toast.LENGTH_SHORT).show()
        is LongToast -> Toast.makeText(this, toastData.msgId, Toast.LENGTH_LONG).show()
    }
}

n8ebel

val toastPub:PublishSubject<ToastData> = PublishSubject.create()