Swift developed UIButton as a mask for image scaling

Many partners always think that the time to zoom picture is very troublesome, because do not know where to start, especially in the face of the new development language, in fact, there are many methods of image scaling, but original aim, that is frame, so, do not think so tall on. Here is an image scaling demousing masks, and interested partners can look at them.

//

Viewcontroller.swift

// Zoom of picture

//

Created by Yue technology on 15/1/15.

Copyright (c) year BSY. All rights reserved.

//

Import UIKit

Class Viewcontroller:uiviewcontroller {

var ImageView = Uiimageview ()

var button = UIButton ()

Override Func Viewdidload () {

Super.viewdidload ()

Initialize Uiimageview

var Imageview:uiimageview = Uiimageview (frame:cgrectmake (100, 100, 100, 100))

var image = UIImage (named: "1024")

Imageview.image = Image

Self.view.addSubview (ImageView)

Self.imageview = ImageView

Initialize UIButton(mask)

var Button:uibutton = Uibutton.buttonwithtype (uibuttontype.custom) as UIButton

var frame = Imageview.frame

Button.frame = Frame

Self.view.addSubview (Button)

Button.addtarget (Self, Action: "Changeimage:", ForControlEvents:UIControlEvents.TouchUpInside)

Self.button = button

Self.button.selected = False

}

initialization of the UIButton method implementation

Func Changeimage (Sender:uibutton) {

[UIView beginanimations ("", Context:nil)];

[UIView. Setanimationdelay (0.1)];

[UIView. Setanimationduration (0.5)];

self.button.selected =!sender.selected

if (self.button.selected = = True) {

Self.imageview.frame = Uiscreen.mainscreen (). Bounds

}else if (self.button.selected = = False) {

Self.imageview.frame = CGRectMake (100, 100, 100, 100)

[Uiview.commitanimations];}}

}

Swift developed UIButton as a mask for image scaling