Up and down jitter progress bar

#import <UIKit/UIKit.h>@interface  tjshakeprogressview:uiview@property (nonatomic, Assign) cgfloat progress; @end

//

tjshakeprogressview.m

Tjshakeprogressview

//

Created by MJ on 15/7/6.

Copyright (c) years TJ. All rights reserved.

//

#import "TJShakeProgressView.h"

@interface tjshakeprogressview ()

{

UIView *firstview;

UIView *secondview;

UIView *thirldview;

UIView *fourview;

UIView *contentview;

nsmutablearray *viewarray;

Nsinteger count;

cgfloat temp;

}

@end

@implementation Tjshakeprogressview

-(void) awakefromnib

{

[Super awakefromnib];

[self setUp];

}

-(void) setUp

{

Contentview = [[UIView alloc]init];

Contentview. Translatesautoresizingmaskintoconstraints = NO;

Contentview. BackgroundColor = [uicolor clearcolor];

Firstview = [[UIView alloc]init];

Secondview = [[UIView alloc]init];

Thirldview = [[UIView alloc]init];

Fourview = [[UIView alloc]init];

[self addsubview:contentview];

    nsarray *contentview_h = [nslayoutconstraint constraintswithvisualformat:@ "h:|[contentview]|" options:0 metrics:nil views :nsdictionaryofvariablebindings ( Contentview

nsarray *contentview_v = [nslayoutconstraint constraintswithvisualformat:@ "v:|[ Contentview]| " options:0 metrics:nil views : Nsdictionaryofvariablebindings(contentview)];

[self addconstraints: contentview_h];

[self addconstraints: contentview_v];

Viewarray = [nsmutablearray arraywitharray:@[firstview,Secondview ,thirldview,Fourview]];

for (UIView *views in viewarray)

{

        Views. Backgroundcolor  = [uicolor colorwithred :arc4random ()%255/256.f green:arc4random ()%255/256.f blue:arc4random ()%255< Span class= "S5" >/256.f alpha: 1.f]

Views. translatesautoresizingmaskintoconstraints = NO;

[contentview addsubview: views];

nslayoutconstraint *constraint_bottom = [nslayoutconstraint< Span class= "S5" > constraintwithitem:views attribute :nslayoutattributebottom relatedby :nslayoutrelationequal toitem :contentview attribute:< Span class= "S1" >nslayoutattributebottom multiplier: 1.f constant:0.f

[contentview addconstraint: constraint_bottom];

}

    nsarray *allview_h = [ nslayoutconstraint constraintswithvisualformat :@ "H:|-[firstview]-[secondview (Firstview)]-[thirldview (SecondView)]-[ Fourview (Thirldview)]-| " options:0 metrics:nil views :nsdictionaryofvariablebindings (firstView< Span class= "S5" >,secondview,thirldview,< Span class= "S8" >fourview

[contentview addconstraints: allview_h];

}

-(void) setprogress: (cgfloat ) Progress

{

if (progress<0.f) {

_progress = 0.0f;

}

Else if (progress<=1.0f)

{

_progress = progress;

}

Else

{

_progress = 1.f;

}

for (UIView *views in viewarray)

{

count+ +;

Temp = count%2? 0.75:0.45;

[Views needsupdateconstraints];

Nslayoutconstraint *constraint_height = [nslayoutconstraint Constraintwithitem:views attribute: Nslayoutattributeheight relatedby: Nslayoutrelationequal toitem:contentview< Span class= "S5" > attribute:nslayoutattributeheight multiplier:(_progress*< Span class= "S8" >temp) constant:0.f

[contentview addconstraint: constraint_height];

[Views layoutifneeded];

cabasicanimation *basic = [cabasicanimation animationwithkeypath:@ "POSITION.Y" ];

Basic. Tovalue = @ (_progress*contentview. Bounds. Size. Height);

Basic. repeatduration = maxfloat;

Basic. Duration = 0.60f;

Basic. autoreverses= YES;

[Views. layer addanimation: Basic forkey:@ "Test"];

}

}

@end

#import " ViewController.h " #import " TJShakeProgressView.h " @interface  *Progressview; @end @implementation Viewcontroller-(void) viewdidload {    [super Viewdidload];            0.81 ;}

Progress bar up and down jitter