【代码笔记】iOS-自定义loading

#import <UIKit/UIKit.h>
//loading
#import "GPLoadingButton.h"

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

@end

#import "ViewController.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，loading出现
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
backViewLoad.hidden=NO;
loadingButton.hidden=NO;
[loadingButton startActivity];
//5s后loading消失
[self performSelector:@selector(loadingStop) withObject:nil afterDelay:2];
}
-(void)loadingStop
{
backViewLoad.hidden=YES;
loadingButton.hidden=YES;
[loadingButton stopActivity];
}
#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=0.7;
backViewLoad.hidden=YES;
[self.view addSubview:backViewLoad];

loadingButton = [[GPLoadingButton alloc] initWithFrame:CGRectMake(self.view.frame.size.width/2-20, (self.view.frame.size.height-38)/2-20, 40, 40)];
loadingButton.rotatorColor = [UIColor colorWithRed:59/255.0 green:89/255.0 blue:152/255.0 alpha:1.0];
loadingButton.hidden=YES;
[self.view addSubview:loadingButton];

}

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

@end