kwong93

    public static void hideKeyboard(Context context, View view) {
        getInputMethodManager(context).hideSoftInputFromWindow(view.getWindowToken(), 0);
    }

    public static void showKeyboard(Context context, View view) {
        getInputMethodManager(context).showSoftInput(view, 0);
    }

    public static InputMethodManager getInputMethodManager(Context context) {
        return (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);

kwong93

private List<String> getHeavyList() {
    List<String> list = new ArrayList<>();

    list.add("First string");
    list.add("Second string");
    list.add("Third string");

    return list;
}

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/**
 * Do 1 heavy operation, when successful, fire 2 more heavy operations sequentially that use the first operation's data
 */
private List<String> getHeavyList() {
    List<String> list = new ArrayList<>();

    list.add("First string");
    list.add("Second string");
    list.add("Third string");

kwong93

final String gifUrl = "http://i.imgur.com/LU208u2.gif";

final RequestOptions requestOptions = new RequestOptions()
        .fitCenter(this);

Glide.with(LoginActivity.this).asBitmap().load(gifUrl).apply(requestOptions).into(imageViewPreview);

final View.OnClickListener onClickListener = new OnClickListener() {
    @Override
    public void onClick(View v) {

kwong93

exports.onPropertyCommitted = function (args) {
    if (args.propertyName == "height") {
        var ageEntityProperty = dataForm.getPropertyByName("age");

        if (ageEntityProperty) {
            if (args.entityProperty.originalValue == 2) {
                ageEntityProperty.hidden = true;
            } else {
                ageEntityProperty.hidden = false;
            }

kwong93

recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
    @Override
    public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
        super.onScrolled(recyclerView, dx, dy);

        if (dy > 0) {
            if (!recyclerView.canScrollVertically(1)) {

            }
        }

kwong93

@SuppressWarnings("deprecation")
public static Spanned fromHtml(String source) {
    if (source == null) {
        return null;
    }

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
        return Html.fromHtml(source, Html.FROM_HTML_MODE_LEGACY);
    }

kwong93

private final ExoPlayer exoPlayer;

public PlayerExoPlayer(ExoPlayer exoPlayer) {
  this.exoPlayer = exoPlayer;
}

public void prepareMp3(Context context, Uri uri) {
  DefaultBandwidthMeter defaultBandwidthMeter = new DefaultBandwidthMeter();

  String userAgent = System.getProperty("http.agent");

kwong93

// Took forever because of crappy tutorials, for example https://developer.android.com/guide/topics/media-apps/audio-app/building-a-mediabrowserservice.html
// Key information was in COMMENTS in MediaButtonReceiver.java
// The key is to have a receiver with filter android.intent.action.MEDIA_BUTTON AND in the service

// register pending intent to the button in notification
builder.addAction(new NotificationCompat.Action(
        R.drawable.ic_skip_next_black_24dp, getString(R.string.skip_next),
        MediaButtonReceiver.buildMediaButtonPendingIntent(this, PlaybackStateCompat.ACTION_SKIP_TO_NEXT)));

// manifest changes

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public List<File> getExternalDirectoryRoots(Context context) {
    File[] externalFilesDirs = ContextCompat.getExternalFilesDirs(context, null);

    List<File> externalDirectories = new ArrayList<>();

    Set<String> stringSet = new HashSet<>();

    for (File file : externalFilesDirs) {
        String[] split = file.getAbsolutePath().split("/");
        if (split.length > 1) {