LoadingView

// LoadingView.h

// 蓝桥播报

// Created by 小小建 on 15/7/10.

#import <Foundation/Foundation.h>

#import <UIKit/UIKit.h>

@interface LoadingView : NSObject

{

UIView *_backGroundView;

UIView *_centerLoadingView;

UIActivityIndicatorView *_activityView;

}

+(LoadingView *)shareLoadingView;

-(void)show;

-(void)hide;

@end

// LoadingView.m

// 蓝桥播报

// Created by 小小建 on 15/7/10.

#import "LoadingView.h"

#import "AppDelegate.h"

static LoadingView *singleInstance=nil;

@implementation LoadingView

+(LoadingView *)shareLoadingView{

@synchronized(self){

if (singleInstance==nil) {

singleInstance=[[self alloc] init];

}

return singleInstance;

}

-(void)show{

AppDelegate *delegate=(AppDelegate *)[UIApplication sharedApplication].delegate;

_backGroundView=[[UIView alloc] initWithFrame:[UIScreen mainScreen].bounds];

[_backGroundView setBackgroundColor:[UIColor blackColor]];

_backGroundView.alpha=0.6;

[delegate.window addSubview:_backGroundView];

_centerLoadingView=[[UIView alloc] initWithFrame:CGRectMake(0, 0, 150, 150)];

_centerLoadingView.center=CGPointMake([UIScreen mainScreen].bounds.size.width/2, [UIScreen mainScreen].bounds.size.height/2);

UIImageView *imgView=[[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 150, 150)];

[imgView setImage:[UIImage imageNamed:@"loading_bg.png"]];

_activityView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];

_activityView.center = CGPointMake(imgView.frame.size.width/2, imgView.frame.size.height/2-20);

_activityView.hidesWhenStopped = YES;

[_activityView startAnimating];

[imgView addSubview:_activityView];

UILabel *labelInfo = [[UILabel alloc] initWithFrame:CGRectMake(0,0, 140, 60)];

labelInfo.center=CGPointMake(imgView.frame.size.width/2, imgView.frame.size.height/2+20);

labelInfo.numberOfLines = 2;

labelInfo.backgroundColor = [UIColor clearColor];

labelInfo.textAlignment = NSTextAlignmentCenter;

labelInfo.textColor = [UIColor whiteColor];

labelInfo.font = [UIFont systemFontOfSize:16];

labelInfo.text=@"加载中...";

[imgView addSubview:labelInfo];

[_centerLoadingView addSubview:imgView];

[delegate.window addSubview:_centerLoadingView];

}

-(void)hide{

[_activityView stopAnimating];

[_centerLoadingView removeFromSuperview];

[_backGroundView removeFromSuperview];

}

@end

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