Swift image selection for iOS development, deselect model

The following code does not fully implement the multiple-selection function, just for the intermediate process, as a review of their use. Because of the optimized code, you'll end up forgetting the middle process.
Read the local picture, then list, then select multiple, you can deselect

//
Viewcontroller.swift
Imagetest
//
Created by on 15/11/30.
Copyright (c) 2015 JS. All rights reserved.
//

Import Uikit
Import Assetslibrary

Class Viewcontroller:uiviewcontroller {
Resource Pool Management class
var assetslibrary = Alassetslibrary ()
Save Photo Collection
var assets = [Alasset] ()

Override Func Viewdidload () {
Super.viewdidload ()
Do no additional setup after loading the view, typically from a nib.
var countone = 0

var qix = 0;


Let Registerbtn:uibutton = UIButton ()
Registerbtn.frame = CGRectMake (10, 200, 300, 40)
Registerbtn.backgroundcolor = Uicolor.lightgraycolor ()
Registerbtn.settitle ("registered", ForState:UIControlState.Normal)
Registerbtn.addtarget (Self, Action: "Goregister:", ForControlEvents:UIControlEvents.TouchUpInside)
Self.view.addSubview (REGISTERBTN)


Read data, the current function can not read the asset data, there must be another action trigger, so get a button, the next action
Alassetsgroupsavedphotos means read only camera film (Alassetsgroupall reads all albums)
Assetslibrary.enumerategroupswithtypes (Alassetsgroupsavedphotos, Usingblock: {
(group:alassetsgroup!, stop) in
Print ("is Goin:")
If group!= Nil
{
Let Assetblock:alassetsgroupenumerationresultsblock = {
(result:alasset!, Index:int, stop) in
If result!= Nil
{

Self.assets.append (Result)//Load Picture
Qix = countone%6;

var pos_x:cgfloat = cgfloat (ten + Int (qix*55));
var pos_y:cgfloat = cgfloat (+ Int (COUNTONE/6 * 55));

Take thumbnails
Let image = UIImage (CGImage:result.thumbnail (). Takeunretainedvalue ())
var ImageView = Uiimageview (Frame:cgrectmake (pos_x, Pos_y, 50, 50))
Imageview.image = Image
imageview.userinteractionenabled = true;//Click gesture
var Singletap:uitapgesturerecognizer = UITapGestureRecognizer (target:self, Action: "Imageviewtouch:")
ImageView. Addgesturerecognizer (SINGLETAP)
Imageview.tag = Countone

Border color settings
ImageView.layer.borderColor = Uicolor.graycolor (). Cgcolor
Width setting for borders
ImageView.layer.borderWidth = 1
One of the most important sentences
ImageView.layer.masksToBounds = True
Load the Uiimageview onto the parent control, which is the Self.view
Self.view.addSubview (ImageView)


qix++
countone++

}
}


Group.enumerateassetsusingblock (Assetblock)
Print ("Assets:\ (Countone)")
CollectionView Grid overloaded Data
Self.collectionview? Reloaddata ()
println ("= = =");
}

}, Failureblock: {(fail) in
Print (fail)
})

}

Func Imageviewtouch (Gestur:uitapgesturerecognizer) {
println ("I was touched!!");
Let x = Gestur.view? Tag

Print (assets[x!])

Let Countone = x//Restore Countone
var qix = countone!%6;

var pos_x:cgfloat = cgfloat (ten + Int (qix*55));
var pos_y:cgfloat = cgfloat (+ Int (COUNTONE!/6 * 55));

Let image = UIImage (cgimage:assets[x!]. Thumbnail (). Takeunretainedvalue ())
var ImageView = Uiimageview (Frame:cgrectmake (pos_x, Pos_y, 50, 50))
Imageview.image = Image

imageview.userinteractionenabled = true;//Click gesture
var Singletap:uitapgesturerecognizer = UITapGestureRecognizer (target:self, Action: "IMAGEVIEWTOUCH2:")
ImageView. Addgesturerecognizer (SINGLETAP)
Imageview.tag = countone!

Border color settings
ImageView.layer.borderColor = Uicolor.redcolor (). Cgcolor
Width setting for borders
ImageView.layer.borderWidth = 1
One of the most important sentences
ImageView.layer.masksToBounds = True
Load the Uiimageview onto the parent control, which is the Self.view
Self.view.addSubview (ImageView)

}

Cancel Touch
Func ImageViewTouch2 (Gestur:uitapgesturerecognizer) {
println ("I was touched!!");
Let x = Gestur.view? Tag

Print (assets[x!])

Let Countone = x//Restore Countone
var qix = countone!%6;

var pos_x:cgfloat = cgfloat (ten + Int (qix*55));
var pos_y:cgfloat = cgfloat (+ Int (COUNTONE!/6 * 55));

Let image = UIImage (cgimage:assets[x!]. Thumbnail (). Takeunretainedvalue ())
var ImageView = Uiimageview (Frame:cgrectmake (pos_x, Pos_y, 50, 50))
Imageview.image = Image

imageview.userinteractionenabled = true;//Click gesture
var Singletap:uitapgesturerecognizer = UITapGestureRecognizer (target:self, Action: "Imageviewtouch:")
ImageView. Addgesturerecognizer (SINGLETAP)
Imageview.tag = countone!

Border color settings
ImageView.layer.borderColor = Uicolor.graycolor (). Cgcolor
Width setting for borders
ImageView.layer.borderWidth = 1
One of the most important sentences
ImageView.layer.masksToBounds = True
Load the Uiimageview onto the parent control, which is the Self.view
Self.view.addSubview (ImageView)

}



@IBAction func Goregister (sender:anyobject) {

Show a list of pictures
var count = Assets.count;

for var index = 0; Index < count; ++index {
println ("index is \ (index)")
}
}

Override Func didreceivememorywarning () {
Super.didreceivememorywarning ()
Dispose of any of the can is recreated.
}


}
A more concise approach is to save the ImageView in an array and then use the array to change the picture selection.
var IMGs = [Uiimageview] ()

Click, the border turns red
Func Imageviewtoucharr (Gestur:uitapgesturerecognizer) {
Let x = Gestur.view? Tag
var ImageView = imgs[x!]
var Singletap:uitapgesturerecognizer = UITapGestureRecognizer (target:self, Action: "Imageviewtoucharrcancel:")
ImageView. Addgesturerecognizer (SINGLETAP)
ImageView.layer.borderColor = Uicolor.redcolor (). Cgcolor
}
Click to cancel the border
Func Imageviewtoucharrcancel (Gestur:uitapgesturerecognizer) {
Let x = Gestur.view? Tag
var ImageView = imgs[x!]
var Singletap:uitapgesturerecognizer = UITapGestureRecognizer (target:self, Action: "Imageviewtoucharr:")
ImageView. Addgesturerecognizer (SINGLETAP)
ImageView.layer.borderColor = Uicolor.graycolor (). Cgcolor
}