IOS Uisearchdisplaycontroller Learning Notes

UisearchdisplaycontrolleR and Uisearchbar are used together to manage the display of Uisearchbar and search results.

Uisearchdisplaycontroller provides a tableview that displays search results to cover the original controller's view;

The use of Uisearchdisplaycontroller requires:

• Provides the source of data for the search results table-searchresultsdatasource
• Agent searchresultsdelegate for search results table
• The proxy delegate of the Uisearchdisplaycontroller controller, which corresponds to the beginning and end of the search event and the display of the Hidden interface; (This agent knows the change and search scope of the search string.) So the result table can (self-actively) import again)
• Searchbar's agent (about Uisearchbar Agent previous article has been explained)

It is common to initialize Uisearchdisplaycontroller in UITableView to show a list.

Searchcontroller = [[Uisearchdisplaycontroller alloc]                         initwithsearchbar:searchbar contentscontroller:self]; Searchcontroller.delegate = Self;searchcontroller.searchresultsdatasource = self; Searchcontroller.searchresultsdelegate = self;

In the Tabelview proxy method, you need to infer which table (Uitableviewcontroller has Self.tableview Uisearchdisplaycontroller. Searchresultstableview)

-(Nsinteger) TableView: (UITableView *) TableView numberofrowsinsection: (nsinteger) Section {     if (TableView = = Self.tableview) {        return ...;    }    If necessary (if the data source for other table views),    //Check whether TableView is Searchcontroller.sea Rchresultstableview.    return ...;}

A uiviewcontroller and a uisearchbar have only one uisearchdisplaycontroller;

You can use Searchdisplaycontroller in Navigationbar after iOS7, By configuring the Displayssearchbarinnavigationbar and Navigationitem attributes in the Uisearchdisplaycontroller;

Related properties and methods

@property (nonatomic, getter=isactive) BOOL active

Show (hide) state, default value is no, direct set no animation. With setActive:animated: settings There will be animations

@property (nonatomic, assign) id< Uisearchdisplaydelegate> Delegate

Agent

@property (nonatomic, assign) BOOL Displayssearchbarinnavigationbar

Specify Navigationbar to include a searchbar

@property (nonatomic, ReadOnly) Uinavigationitem *navigationitem

The read-only attribute represents the Searchdisplaycontroller in the Navigationbar of the navigation controller;

@property (nonatomic, ReadOnly) Uisearchbar *searchbar

Uisearchbar in the Uisearchdisplaycontroller;

@property (nonatomic, ReadOnly) Uiviewcontroller *searchcontentscontroller

This property manages what is searched for

@property (Nonatomic, assign) id< Uitableviewdatasource > Searchresultsdatasource

Show data sources for search results

@property (nonatomic, assign) id< uitableviewdelegate> searchresultsdelegate

proxy for table displayed by search results

@property (Nonatomic, readonly)   uitableview

search results show Table

@property (nonatomic, copy)   nsstring *searchresultstitle

title of search results View

-(ID) Initwithsearchbar: ( uisearchbar *) searchbar  contentscontroller: ( uiviewcontroller *) viewcontroller

Initialize controller specifies associated search and View Controller

-(void) SetActive: (BOOL) Visible animated: (BOOL) animated

Show or hide the search view

Content from Apple Docs

IOS Uisearchdisplaycontroller Learning Notes