NETFLIX APPBAR IMITATION PACKAGE

Dremar Design

WATCH THE VIDEO EXAMPLE

The package will allow you to simulate the Netflix app menu behavior.

The class i created is just a simple imitation, so there can be stack memory problems or graphical performance issues on older devices.

HOW TO USE IT

You need page_transition (at least version 1.0.0) and after_layout (at least version 1.0.5) in order to use this package.

After you have imported it, you should create your personalized Stateful or Stateless Widget classes. After you did this, on your main default function you have to create a list of objects and to return the NetflixAppBar instance.

• LIST OF OBJECTS

  Let's create a simple list of objects

  //we initialize the list
  List<DrTextTransitionTitleObject> titles = new List();
  
  //we add a new Widget class, one of them you created
  titles.add(new DrTextTransitionTitleObject("title", "slug", your_class_name()));
  

• NetflixAppBar ARGUMENTS

   NetflixAppBar(List<DrTextTransitionTitleObject> titles, int duration,
      {Widget header,
      double headerHeight = 0,
      Color background = Colors.transparent,
      Color appBarColor,
      int dumping = 100,
      double titlePaddingLeft = 16,
      double titlePaddingRight = 15,
      double titleActiveFontSize = 20,
      double maxOpacity = 0.6,
      double initialOpacity = 0,
      bool pinned = false,
      TextStyle titleStyles = const TextStyle(
          color: Colors.white, fontSize: 16, fontWeight: FontWeight.bold),
      Widget leading,
      Function(ScrollController, String, NetflixAppBar) onScreenChange,
      MainAxisAlignment mainAxisAlignment})
  

TITLE	TYPE	DESCRIPTION	DEFAULT VALUE
titles	List	The list of objects you initially created	null
duration	int	The duration (in milliseconds) of your menu animation	null
header	Widget	The AppBar header, it's optional	null
headerHeight	double	The AppBar header height	0
background	Color	The main color of the Scaffold NetlixToolbar will return	Colors.transparent
appBarColor	Color	The main color of the AppBar	Colors.purpleAccent.withOpacity(0.7)
dumping	int	More the value is bigger more the user has to scroll down before the AppBar disappears	100
titleStyles	TextStyle	The Style you want to set up to your menu titles	const TextStyle( color: Colors.white, fontSize: 16, fontWeight: FontWeight.bold),
titlePaddingLeft	double	The padding left that should have the titles' row	16
titlePaddingRight	double	The padding right that should have the title row	15
titleActiveFontSize	double	The font size of the Title Label during a transition	20
leading	Widget	The leading AppBar Widget	null
pinned	bool	If you want the AppBar always fixed on the top set pinned to true	false
initialOpacity	double	The initial and minimum opacity of the AppBar	0
maxOpacity	double	The max opacity the AppBar can reach while the user scrolls down. AppBar opacity will reach your value following the dumping value you set	0.6
onScreenChange	Function(ScrollController, String, NetflixToolbar)	A function that will allow you to get the control of the current screen	null
mainAxisAlignment	MainAxisAlignment	AppBar title row mainAxisAlignment	MainAxisAlignment.spaceBewteen when titles length is > 2; MainAxisAlignment.start when titles length is <= 2

Example:

    List<DrTextTransitionTitleObject> titles = new List();

    titles.add(new DrTextTransitionTitleObject("Movies", "movies", Movies()));
    titles.add(new DrTextTransitionTitleObject("Tv Series", "tv", Tv()));
    titles.add(new DrTextTransitionTitleObject("About Me", "about", AboutUs()));

    int milliseconds = 700;

    TextStyle titleStyles = const TextStyle(
        fontFamily: "Dr1",
        color: Colors.white,
        fontSize: 18,
        fontWeight: FontWeight.bold);

    instance = NetflixAppBar(
      titles,
      milliseconds,
      initialOpacity: 0.3,
      maxOpacity: 1,
      dumping: 100,
      titleStyles: titleStyles,
      titleActiveFontSize: 21,
      appBarColor: Colors.black,
      background: Colors.black,
      onScreenChange:
          (ScrollController controller, String slug, NetflixAppBar instance) {
        print("Controller received correctly \n We are on $slug screen");
        this.currentSlug = slug;
        this.instance = NetflixAppBar.getInstance();
        var newTitles = this.instance.titles;

        //....

      },
    );
    return instance;

IMPORTANT

after the first screen transition the class that wraps NetflixAppBar instance will be disposed, so be careful.

STATIC FUNCTIONS

• getInstance()

  NetflixAppBar.getInstance() will return the current NetflixAppBar instance. So you can get info about current titles, attributes, and so on

• getContext()

  NetflixAppBar.getContext() will return the current NetflixAppBar instance context

• notify()

  NetflixAppBar.notify() will allow you to update graphical elements on the current displayed screen

• goBack()

  NetflixAppBar.goBack() will allow you to return to the previous screen

• DrTextTransitionTitleObject ARGUMENTS

  
  DrTextTransitionTitleObject(String name, String heroTag, Widget function,
        {List<DrTextTransitionTitleObject> newTitles,
        bool personalized = false,
        Widget overrideWidget,
        Function overrideAction,
        TextStyle primaryStyle,
        Widget header,
        double headerHeight,
        double paddingLeft = 0})
  
  

TITLE	TYPE	DESCRIPTION	DEFAULT VALUE
name	String	The title value	null
heroTag	String	This is the label slug, it allows to the app to use it as an Hero Widget tag for the animations	null
function	Widget	This is the Widget you want to show up when a user clicks on the label. If you set an overrideAction function then you can set the function property to null	null
newTitles	List	The list of titles you want to show up when you click on that specific title	null
personalized	bool	If you set personalized to true it means you want to create a your own Widget for that title on the AppBar. The default widget is an Animated Text View	false
overrideWidget	Widget	If personalized is true you must specify an overrideWidget. It is the Widget Flutter will show for that title on the AppBar	null
overrideAction	Function	It is helpful when you want to trigger a personalized function when a user clicks on that title on the menu	null
primaryStyle	TextStyle	The style you want to give to the default TextView widget that shows the title name on the AppBar	null
paddingLeft	double	The padding left you want to give to the default TextView widget that shows the title name on the AppBar	0
header	Widget	When a user clicks on the title and you don't set an overrideAction this is the new widget will appear on the top of the AppBar	null
headerHeight	double	The header widget height	null

Example:

    List<DrTextTransitionTitleObject> titles = new List();
    List<DrTextTransitionTitleObject> tvTitles = new List();

    var movies = new Movies();
    var tv = new Tv();

    titles.add(new DrTextTransitionTitleObject("Movies", "movies", movies,
        header: switchHeader("movies")));
    titles.add(new DrTextTransitionTitleObject("Tv Series", "tv", tv,
        newTitles: tvTitles, header: switchHeader("movies")));
    titles.add(new DrTextTransitionTitleObject("About Me", "about", AboutUs()));

    tvTitles.add(new DrTextTransitionTitleObject("Tv Series", "tv", tv,
        newTitles: titles,
        header: switchHeader("tv"),
        personalized: true,
        overrideWidget: Icon(
          Icons.search,
          color: Colors.white,
          size: 32,
        )));
    tvTitles.add(new DrTextTransitionTitleObject("Movies", "movies", movies,
        newTitles: titles, paddingLeft: 35));

WEB IMPLEMENTATION

CLICK HERE to see a web example

CONTACTS

You can contact me through Telegram: @dremar_design

DONATIONS

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