【代码笔记】iOS-自定义loading(IanAlert)

一，效果图。

二，工程图。

三，代码。

ViewController.h

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController
{
    //loading
    UIView *backViewLoad;

}
@end

ViewController.m

#import "ViewController.h"
//loading
#import "IanAlert.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    
    //loading
    [self addLoadingView];

}
//点击任何处显示loading
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    //loading
    backViewLoad.hidden=NO;
    [IanAlert showloading];
    [self performSelector:@selector(loadStop) withObject:nil afterDelay:2.0];
}
//停止loading
-(void)loadStop
{
    backViewLoad.hidden=YES;
    [IanAlert hideLoading];
}
#pragma -mark --loading------
-(void)addLoadingView
{
    backViewLoad=[[UIView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];
    backViewLoad.backgroundColor=[UIColor blackColor];
    backViewLoad.alpha=0.8;
    backViewLoad.hidden=YES;
    [self.view addSubview:backViewLoad];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end