[Feature request] initialize a LottieAnimationView with a remote url directly

Would like to have a way to initialize a LottieAnimationView with a remote url directly, which is available in lottie-ios as initWithContentsOfURL.

In the sample app, private void loadUrl(String url) { ... } loads the json file and passes the parsed json string to the private void loadJsonString(String jsonString) { ... } method. Why not put that logic inside lottie?

[AndroidDeveloperLB]

OK never mind. Basic usage can be as such:

@SuppressLint("ObsoleteSdkInt")
class LottieAnimationViewEx : LottieAnimationView {
    var loadingThread: Thread? = null

    constructor(context: Context) : super(context)
    constructor(context: Context, attrs: AttributeSet) : super(context, attrs)
    constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int) : super(context, attrs, defStyleAttr)

    init {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
            useHardwareAcceleration(true)
    }

    interface OnAnimationReadyListener {
        /**called when the animation is ready, or can't be accessed due to some error (null in this case)*/
        fun onAnimationReady(inputStream: InputStream?)
    }

    @UiThread
    fun loadAnimationFromUrl(url: String, onAnimationReadyListener: OnAnimationReadyListener? = null) {
        val handler = Handler()
        loadingThread = object : Thread() {
            override fun run() {
                super.run()
                val streamForUrl = StreamUtil.getInputStreamFromUrl(url)
                handler.post {
                    if (onAnimationReadyListener == null) {
                        if (streamForUrl == null)
                            return@post
                        val reader = JsonReader(BufferedReader(InputStreamReader(streamForUrl)))
                        setAnimation(reader)
                    } else onAnimationReadyListener.onAnimationReady(streamForUrl)
                }
            }
        }
        loadingThread!!.start()
    }
}



public static InputStream getInputStreamFromUrl(final String urlStr) throws IOException {
    if (TextUtils.isEmpty(urlStr))
        return null;
    InputStream input = null;
    HttpURLConnection connection = null;
    final URL url = new URL(urlStr);
    connection = (HttpURLConnection) url.openConnection();
    connection.setConnectTimeout(CONNECTION_TIMEOUT_IN_MILLIS);
    connection.setReadTimeout(CONNECTION_TIMEOUT_IN_MILLIS);
    // See the http://stackoverflow.com/questions/15411213/android-httpsurlconnection-eofexception for
    // explanations
    connection.setRequestProperty("Connection", "close");
    // this is an attempt to overcome an error of "FileNotFoundException"
    connection.setDoOutput(false);
    connection.connect();
    // expect HTTP 200 OK, so we don't mistakenly save error report
    // instead of the file
    if (connection.getResponseCode() != HttpURLConnection.HTTP_OK)
        return null;
    // download the file
    input = connection.getInputStream();
    return input;
}

Could be nice to know how to do it more nicely though.

[rajivrnair]

Yep. Been using it for a couple of days and no issues so far.