Custom Load Wait box (MBPROGRESSHUD)

First, the online download Mbprogesshud class files, directly into the project can be

Second, example analysis

In my project, the example is as follows:

1) The ShowImageViewController.h header file code is as follows:

#import <UIKit/UIKit.h>

#import "MBProgressHUD.h"

@interface showimageviewcontroller:uiviewcontroller<mbprogresshuddelegate> {

NSString *_picurlstring;

Uiimageview *_imageview;

Mbprogresshud *_progresshud;

}

@property (nonatomic, copy) NSString *picurlstring;

@property (nonatomic, retain) Iboutlet Uiimageview *imageview;

@property (nonatomic, retain) Mbprogresshud *progresshud;

Request a picture Resource

-(void) imageresourcerequest;

Display picture information

-(void) DisplayImage: (UIImage *) image;

-(Ibaction) Dismissmodealview: (ID) sender;

-(void) Removemodalview;

@end

2) in the SHOWIMAGEVIEWCONTROLLER.M implementation file code is as follows:

#import "ShowImageViewController.h"

#import <QuartzCore/QuartzCore.h>

@implementation Showimageviewcontroller

@synthesize picurlstring = _picurlstring;

@synthesize ImageView = _imageview;

@synthesize Progresshud = _progresshud;

-(void) viewdidload

{

[Super Viewdidload];

Do any additional setup after loading the view from its nib.

Self.view.backgroundColor = [Uicolor Graycolor];

Self.view.alpha = 0.8;

Set the picture to rounded corners

Self.imageView.backgroundColor = [Uicolor Clearcolor];

Self.imageView.layer.borderColor = [Uicolor Lightgraycolor]. Cgcolor;

Self.imageView.layer.borderWidth = 5.0;

Self.imageView.layer.masksToBounds = YES;

Self.imageView.layer.cornerRadius = 10.0;

}

-(void) Viewwillappear: (BOOL) animated

{

[Super viewwillappear:animated];

Reset ImageView When you enter the view

[Self.imageview Setimage:nil];

[Self.imageview Setframe:cgrectmake (160, 200, 0, 0)];

Show Load Wait box

Self.progresshud = [[Mbprogresshud alloc] initWithView:self.view];

[Self.view AddSubview:self.progressHUD];

[Self.view BringSubviewToFront:self.progressHUD];

Self.progressHUD.delegate = self;

Self.progressHUD.labelText = @ "Loading ...";

[Self.progresshud Show:yes];

Open thread, request picture Resource

[Nsthread detachnewthreadselector: @selector (imageresourcerequest) totarget:self Withobject:nil];

}

Request a picture Resource

-(void) imageresourcerequest

{

NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

Based on network data, get to image resource

NSData *data = [[NSData alloc] Initwithcontentsofurl:[nsurl URLWithString:self.picUrlString]];

UIImage *image = [[UIImage alloc] initwithdata:data];

[Data release];

Back to main thread, display picture information

[Self Performselectoronmainthread: @selector (displayimage:) withobject:image Waituntildone:no];

[Image release];

[Pool release];

}

Display picture information

-(void) DisplayImage: (UIImage *) image

{

If the Self.progresshud is true, remove the Self.progresshud and set it to nil

if (Self.progresshud) {

[Self.progresshud Removefromsuperview];

[Self.progresshud release];

Self.progresshud = nil;

}

Picture slowly zoom in on the animation effect

[Self.imageview Setimage:image];

[UIView Beginanimations:nil Context:nil];

[UIView setanimationduration:0.5];

[Self.imageview Setframe:cgrectmake (40, 100, 240, 160)];

[UIView commitanimations];

}

-(void) viewdidunload

{

[Self setimageview:nil];

[Super Viewdidunload];

Release any retained subviews of the main view.

e.g. Self.myoutlet = nil;

}

-(BOOL) Shouldautorotatetointerfaceorientation: (uiinterfaceorientation) interfaceorientation

{

Return YES for supported orientations

return (interfaceorientation = = uiinterfaceorientationportrait);

}

-(Ibaction) Dismissmodealview: (ID) Sender {

Set the timer, when the animation ends, the child view is removed from the parent view

[Nstimer scheduledtimerwithtimeinterval:0.5 target:self selector: @selector (removemodalview) Userinfo:nil Repeats:NO ];

[UIView Beginanimations:nil Context:nil];

[UIView setanimationduration:0.5];

[Self.imageview Setframe:cgrectmake (160, 200, 0, 0)];

[UIView commitanimations];

}

-(void) Removemodalview

{

[Self.view Removefromsuperview];

}

#pragma mark-

#pragma Mark Mbprogresshuddelegate Methods

-(void) Hudwashidden: (Mbprogresshud *) HUD {

NSLog (@ "HUD:%@", HUD);

Remove HUD from screens when the HUD is hidded

[Self.progresshud Removefromsuperview];

[Self.progresshud release];

Self.progresshud = nil;

}

-(void) dealloc

{

[_picurlstring release];

[_imageview release];

[Super Dealloc];

}

@end

Third, the effect shows

Iv. Summary

Using Mbprogresshud to implement Load wait box, visual effect greatly improved

Custom Load Wait box (MBPROGRESSHUD)