IOS: Hint Box (warning box) control Uiactionsheet

Prompt box (warning box) control 2:uiactionsheet

Features: when clicking on a button or a label, pop up a prompt, display the necessary hints, and then complete the desired function by adding a button. It is similar to the navigation bar, and it inherits from UIView.  Style Type:

typedef ns_enum (Nsinteger, Uiactionsheetstyle) {

uiactionsheetstyleautomatic =-1, //ios System auto Default style

Uiactionsheetstyledefault = Uibarstyledefault, //default style, white text on gray background

Uiactionsheetstyleblacktranslucent = uibarstyleblacktranslucent //Transparent black background, white text

Uiactionsheetstyleblackopaque = Uibarstyleblackopaque, //black background, white text

};

Property:

@property (nonatomic,assign) id<uiactionsheetdelegate> delegate; //Agent

@property (nonatomic,copy) NSString *title; //Title

@property (nonatomic) Uiactionsheetstyle Actionsheetstyle; //Style type

@property (nonatomic,readonly) Nsinteger numberofbuttons; //Button Count

@property (nonatomic) Nsinteger Cancelbuttonindex; //Cancel the index of the button

@property (nonatomic) Nsinteger Destructivebuttonindex; //red Button index

@property (nonatomic,readonly) Nsinteger Firstotherbuttonindex; //Other First button index

@property (nonatomic,readonly,getter=isvisible) BOOL visible; //Is visible

Method:

※ initialization method for creating an instance

-(Instancetype) Initwithtitle: (NSString *) title delegate: (id<uiactionsheetdelegate>) delegate Cancelbuttontitle: (NSString *) cancelbuttontitle destructivebuttontitle: (NSString *) destructivebuttontitle Otherbuttontitles: (NSString *) Otherbuttontitles, ... ("Use Uialertcontroller instead.");

※ Add a button to return its index

-(Nsinteger) Addbuttonwithtitle: (NSString *) title;

※ Returns the button text for the specified index

-(NSString *) Buttontitleatindex: (Nsinteger) Buttonindex;

※ displayed on the toolbar

-(void) Showfromtoolbar: (Uitoolbar *) view;

※ displayed in the navigation bar

-(void) Showfromtabbar: (Uitabbar *) view;

※ displayed on the toolbar button

-(void) Showfrombarbuttonitem: (Uibarbuttonitem *) Item animated: (BOOL) animated;

※ display on the specified area and view

-(void) Showfromrect: (cgrect) rect inview: (UIView *) View animated: (BOOL) animated;

※ Display on the view

-(void) Showinview: (UIView *) view;

※ Button Disappears

-(void) Dismisswithclickedbuttonindex: (Nsinteger) Buttonindex animated: (BOOL) animated;

Proxy method:

@protocol uiactionsheetdelegate <NSObject>

@optional

How to trigger when a button is clicked

-(void) Actionsheet: (Uiactionsheet *) Actionsheet Clickedbuttonatindex: (Nsinteger) Buttonindex;

If there is no defined delegate, we simulate a click cancel button

-(void) Actionsheetcancel: (Uiactionsheet *) Actionsheet;

The party that is triggered when the warning box will be displayed

-(void) Willpresentactionsheet: (Uiactionsheet *) Actionsheet;

The method that is triggered when the cue box is already displayed

-(void) Didpresentactionsheet: (Uiactionsheet *) Actionsheet;

method to trigger when the cue box is going to disappear

-(void) Actionsheet: (Uiactionsheet *) Actionsheet Willdismisswithbuttonindex: (Nsinteger) Buttonindex;

Method triggered when the cue box has disappeared

-(void) Actionsheet: (Uiactionsheet *) Actionsheet Diddismisswithbuttonindex: (Nsinteger) Buttonindex;

@end

Examples are: class implementation protocol

@interface Viewcontroller () <UIActionSheetDelegate>

1.//Instantiation

    // Create a Cue box instance    Uiactionsheet *actionsheet = [[Uiactionsheet alloc]initwithtitle:@ 'title'delegate : Self cancelbuttontitle:@ "cance" destructivebuttontitle:@ "  Destructive" otherbuttontitles:@"button1"@ " Button2", nil];

2.//Set Style

    // Set style    Actionsheet.actionsheetstyle = uiactionsheetstyleblacktranslucent;

3.//Set up proxy

    // set up proxy    Actionsheet. delegate = self;

4.//display on the view

    // Show    on view [Actionsheet ShowInView:self.view];

To implement the Proxy method:

#pragma mark-<uiactionsheetdelegate>

1. Trigger an event when the button is clicked

// the method that fires when a button is clicked -(void) Actionsheet: (Uiactionsheet *) actionsheet Clickedbuttonatindex: ( Nsinteger) buttonindex{    NSLog (@ "actionsheet:clickedbuttonatindex:");}

2. Events triggered when the prompt box is canceled

// If there is no defined delegate, we simulate a click cancel button -(void) Actionsheetcancel: (Uiactionsheet *) actionsheet{    NSLog (@ "actionsheetcancel:");}

3. Event triggered when the cue box is about to be displayed

// the party to be triggered when the warning box is to be displayed -(void) Willpresentactionsheet: (Uiactionsheet *) actionsheet{    NSLog ( @" Willpresentactionsheet: " );}

4. The method that is triggered when the cue box is displayed

// method triggered when the cue box has been displayed -(void) Didpresentactionsheet: (Uiactionsheet *) actionsheet{    NSLog (  @ "didpresentactionsheet:");}

5. Method to trigger when the cue box is going to disappear

// method to trigger when the cue box is going to disappear -(void) Actionsheet: (Uiactionsheet *) actionsheet Willdismisswithbuttonindex: ( Nsinteger) buttonindex{    NSLog (@ "actionsheet:willdismisswithbuttonindex:" );}

6. How to trigger when the cue box disappears

// method triggered when the cue box has disappeared -(void) Actionsheet: (Uiactionsheet *) actionsheet Diddismisswithbuttonindex: ( Nsinteger) buttonindex{    NSLog (@ "actionsheet:diddismisswithbuttonindex:"  );}

The demo results are as follows:

The proxy method calls are as follows:

When the program runs without clicking the button:

--29.647 :uiactionsheet[3866: 212744] Willpresentactionsheet:

When you click on any button:

 -- the- -  +: *:18.882Cue box uiactionsheet[3866:212744] Actionsheet:clickedbuttonatindex: -- the- -  +: *:18.883Cue box uiactionsheet[3866:212744] Actionsheet:willdismisswithbuttonindex: -- the- -  +: *:19.297Cue box uiactionsheet[3866:212744] Actionsheet:diddismisswithbuttonindex:

IOS: Hint Box (warning box) control Uiactionsheet