功能源代码(扇形进度)及Delegate运用在开放事件中、UINavigationController的封装

1:扇形进度视图及运用

首先先创建扇形的视图，传入进度值

#import <UIKit/UIKit.h>

@interface LHProgressView : UIView

@property (nonatomic) float progress;

@end

#import "LHProgressView.h"
#define MinProgress (1.0 / 16.0)

@implementation LHProgressView

- (id)initWithFrame:(CGRect)frame
{
    if (self = [super initWithFrame:frame]) {
        self.backgroundColor = [UIColor clearColor];
        _progress = MinProgress;
    }
    return self;
}

- (void)drawRect:(CGRect)rect
{
    
    CGContextRef context = UIGraphicsGetCurrentContext();
    
    CGContextFillPath(context);
    CGRect aRect= CGRectMake(2, 2, self.bounds.size.width - 4, self.bounds.size.height - 4);
    CGContextSetRGBStrokeColor(context, 1.0, 1.0, 1.0, 0.9);
    CGContextSetLineWidth(context, 2.0);
    CGContextAddEllipseInRect(context, aRect);
    CGContextDrawPath(context, kCGPathStroke);
    
    CGFloat centerX = self.bounds.size.width / 2;
    CGFloat centerY = self.bounds.size.height / 2;
    
    UIColor *aColor = [UIColor colorWithRed:1.0 green:1.0 blue:1.0 alpha:0.9];
    CGContextSetFillColorWithColor(context, aColor.CGColor);
    CGContextSetLineWidth(context, 0.0);
    CGContextMoveToPoint(context, centerX, centerY);
    CGContextAddArc(context, centerX, centerY, (self.bounds.size.width - 10) / 2,  - M_PI_2, - M_PI_2 + self.progress * 2 *M_PI, 0);
    CGContextClosePath(context);
    CGContextDrawPath(context, kCGPathFillStroke);

}

- (void)setProgress:(float)progress
{
    _progress = progress;
    
    if (_progress < MinProgress) {
        _progress = MinProgress;
    }
    
    if (_progress >= 1.0) {
        
        [self setNeedsDisplay];
        [self removeFromSuperview];
        
    } else {
        
        [self setNeedsDisplay];
        
    }
    
}

@end

运用：

@property(nonatomic, strong)LHProgressView *progressView;

-(instancetype)initWithFrame:(CGRect)frame
{
    if (self = [super initWithFrame:frame]) {
        
        self.backgroundColor = [UIColor clearColor];
        
        _progressView = [[LHProgressView alloc] init];
        
    }
    
    return self;
}

- (void)setItemImageUrl:(NSString *)itemImageUrl
{
    _itemImageUrl = itemImageUrl;
    
    BOOL imageExist = [[SDWebImageManager sharedManager] cachedImageExistsForURL:[NSURL URLWithString:itemImageUrl]];
    
    if (_itemImageProgress == 1.0 || imageExist) {
        
        [_progressView removeFromSuperview];
        
    } else {
        
        _progressView.bounds = CGRectMake(0, 0, 50, 50);
        _progressView.center = CGPointMake((self.bounds.size.width) / 2, (self.bounds.size.height) / 2);
        [self addSubview:_progressView];
        
        _progressView.progress = _itemImageProgress;
        
    }
    
    _itemImageView.image = _itemImage;
    
    [self resetSize];
    
    __weak LHProgressView *progressView = _progressView;
    __weak LHPhotoView *photoView = self;
    NSInteger index = self.tag - 1;
    
    [[SDWebImageManager sharedManager] downloadImageWithURL:[NSURL URLWithString:itemImageUrl] options:SDWebImageRetryFailed | SDWebImageLowPriority progress:^(NSInteger receivedSize, NSInteger expectedSize) {
        
        if ([photoView.photoViewDelegate respondsToSelector:@selector(photoIsShowingPhotoViewAtIndex:)]) {
            BOOL isShow = [photoView.photoViewDelegate photoIsShowingPhotoViewAtIndex:index];
            
            if (isShow) {
                if (receivedSize > kMinProgress) {
                    progressView.progress = (float)receivedSize/expectedSize;
                }
            }
            
        }
        
        if ([photoView.photoViewDelegate respondsToSelector:@selector(updatePhotoProgress:andIndex:)]) {
            [photoView.photoViewDelegate updatePhotoProgress:(float)receivedSize/expectedSize andIndex:index];
        }
        
    } completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) {
        
        if (image) {
            if ([photoView.photoViewDelegate respondsToSelector:@selector(photoIsShowingPhotoViewAtIndex:)]) {
                BOOL isShow = [photoView.photoViewDelegate photoIsShowingPhotoViewAtIndex:index];
                
                if (isShow) {
                    photoView.itemImageView.image = image;
                    
                    [self resetSize];
                }
                
            }
            
            if ([photoView.photoViewDelegate respondsToSelector:@selector(updatePhotoProgress:andIndex:)]) {
                [photoView.photoViewDelegate updatePhotoProgress:1.0 andIndex:index];
            }
        }
        
        
    }];
    
}

注意：在break里面要先处理一下对象__weak LHProgressView *progressView = _progressView;上面也用到SDWebImage进行图片加载，并把进度赋值

2：Delegate运用在开放事件中

#import <UIKit/UIKit.h>
@class DMDropDownMenu;

@protocol DMDropDownMenuDelegate <NSObject>

- (void)selectIndex:(NSInteger)index AtDMDropDownMenu:(DMDropDownMenu *)dmDropDownMenu;

@end

@interface DMDropDownMenu : UIView

@property(nonatomic,assign)id<DMDropDownMenuDelegate>delegate;

@end

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    [self tapAction];
    _curText.text = self.listArr[indexPath.row];
    if ([_delegate respondsToSelector:@selector(selectIndex:AtDMDropDownMenu:)]) {
        [_delegate selectIndex:indexPath.row AtDMDropDownMenu:self];
    }
}

运用时三步代码：

@interface ViewController ()<DMDropDownMenuDelegate>
@end

    DMDropDownMenu * dm1 = [[DMDropDownMenu alloc] initWithFrame:CGRectMake(10, 150, 299, 30)];
    dm1.delegate = self;
    [self.view addSubview:dm1];


- (void)selectIndex:(NSInteger)index AtDMDropDownMenu:(DMDropDownMenu *)dmDropDownMenu
{
    NSLog(@"dropDownMenu:%@ index:%d",dmDropDownMenu,index);
}

 3：UINavigationController的封装

#import <UIKit/UIKit.h>
#import "UIColor+KSString.h"
@interface KSNavigationController : UINavigationController

@end

#import "KSNavigationController.h"

@interface KSNavigationController ()<UIGestureRecognizerDelegate>

@end

@implementation KSNavigationController

- (void)viewDidLoad {
    [super viewDidLoad];
    //设置手势代理
    self.interactivePopGestureRecognizer.delegate = self;
    //设置NavigationBar
    [self setupNavigationBar];
}

//设置导航栏主题
- (void)setupNavigationBar
{
    UINavigationBar *appearance = [UINavigationBar appearance];
    //统一设置导航栏颜色，如果单个界面需要设置，可以在viewWillAppear里面设置，在viewWillDisappear设置回统一格式。
    [appearance setBarTintColor:[UIColor getColor:@"fb9c0a"]];
    
    //导航栏title格式
    NSMutableDictionary *textAttribute = [NSMutableDictionary dictionary];
    textAttribute[NSForegroundColorAttributeName] = [UIColor whiteColor];
    textAttribute[NSFontAttributeName] = [UIFont systemFontOfSize:15];
    [appearance setTitleTextAttributes:textAttribute];
}

- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated
{
    if (self.viewControllers.count > 0) {
        viewController.hidesBottomBarWhenPushed = YES;
        UIButton *backButton = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 22, 22)];
        [backButton setImage:[UIImage imageNamed:@"back"] forState:UIControlStateNormal];
        [backButton setImage:[UIImage imageNamed:@"back"] forState:UIControlStateHighlighted];
        [backButton setImageEdgeInsets:UIEdgeInsetsMake(0, -20, 0, 0)];
        [backButton addTarget:self action:@selector(popView) forControlEvents:UIControlEventTouchUpInside];
        viewController.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc]initWithCustomView:backButton];
    }
    [super pushViewController:viewController animated:animated];
}

- (void)popView
{
    [self popViewControllerAnimated:YES];
}

//手势代理
- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer
{
    return self.childViewControllers.count > 1;
}

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


@end

 4:MBProgressHUD的扩展1.0.0

//
//  NSObject+MP.m
//  MobileProject
//
//  Created by wujunyang on 16/7/9.
//  Copyright © 2016年 wujunyang. All rights reserved.
//

#import "MBProgressHUD+MP.h"

@implementation MBProgressHUD (MP)

#pragma mark 显示错误信息
+ (void)showError:(NSString *)error ToView:(UIView *)view{
    [self showCustomIcon:@"MBHUD_Error" Title:error ToView:view];
}

+ (void)showSuccess:(NSString *)success ToView:(UIView *)view
{
    [self showCustomIcon:@"MBHUD_Success" Title:success ToView:view];
}

+ (void)showInfo:(NSString *)Info ToView:(UIView *)view
{
    [self showCustomIcon:@"MBHUD_Info" Title:Info ToView:view];
}

#pragma mark 显示一些信息
+ (MBProgressHUD *)showMessage:(NSString *)message ToView:(UIView *)view {
    if (view == nil) view = (UIView*)[UIApplication sharedApplication].delegate.window;
    // 快速显示一个提示信息
    MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:view animated:YES];
    hud.mode=MBProgressHUDModeText;
    hud.label.text=message;
    hud.label.font=CHINESE_SYSTEM(15);
    //修改弹出窗的色
    hud.bezelView.color =[UIColor whiteColor];
    // 隐藏时候从父控件中移除
    hud.removeFromSuperViewOnHide = YES;
    //代表需要蒙版效果
    
    hud.backgroundView.style = MBProgressHUDBackgroundStyleSolidColor;
    hud.backgroundView.color = [UIColor colorWithWhite:0.f alpha:0.6f];
    return hud;
}

//加载视图
+(void)showLoadToView:(UIView *)view{
    [self showMessage:@"加载中..." ToView:view];
}


/**
 *  进度条View
 */
+ (MBProgressHUD *)showProgressToView:(UIView *)view Text:(NSString *)text{
    if (view == nil) view = (UIView*)[UIApplication sharedApplication].delegate.window;
    MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:view animated:YES];
    hud.label.text=text;
    hud.label.font=CHINESE_SYSTEM(15);
    //修改弹出窗的色
    hud.bezelView.color =[UIColor whiteColor];
    // 代表需要蒙版效果
    hud.backgroundView.style = MBProgressHUDBackgroundStyleSolidColor;
    hud.backgroundView.color = [UIColor colorWithWhite:0.f alpha:0.6f];
    return hud;
}


//快速显示一条提示信息
+ (void)showAutoMessage:(NSString *)message{
    
    [self showAutoMessage:message ToView:nil];
}


//自动消失提示，无图
+ (void)showAutoMessage:(NSString *)message ToView:(UIView *)view{
    [self showMessage:message ToView:view RemainTime:2 Model:MBProgressHUDModeText];
}

//自定义停留时间，有图
+(void)showIconMessage:(NSString *)message ToView:(UIView *)view RemainTime:(CGFloat)time{
    [self showMessage:message ToView:view RemainTime:time Model:MBProgressHUDModeIndeterminate];
}

//自定义停留时间，无图
+(void)showMessage:(NSString *)message ToView:(UIView *)view RemainTime:(CGFloat)time{
    [self showMessage:message ToView:view RemainTime:time Model:MBProgressHUDModeText];
}

+(void)showMessage:(NSString *)message ToView:(UIView *)view RemainTime:(CGFloat)time Model:(MBProgressHUDMode)model{
    
    if (view == nil) view = (UIView*)[UIApplication sharedApplication].delegate.window;
    // 快速显示一个提示信息
    MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:view animated:YES];
    hud.label.text=message;
    hud.label.font=CHINESE_SYSTEM(15);
    //模式
    hud.mode = model;
    // 隐藏时候从父控件中移除
    hud.removeFromSuperViewOnHide = YES;
    //修改弹出窗的色
    hud.bezelView.color =[UIColor whiteColor];
    // 代表需要蒙版效果
    hud.backgroundView.style = MBProgressHUDBackgroundStyleSolidColor;
    hud.backgroundView.color = [UIColor colorWithWhite:0.f alpha:0.6f];
    // 隐藏时候从父控件中移除
    hud.removeFromSuperViewOnHide = YES;
    // X秒之后再消失
    [hud hideAnimated:YES afterDelay:time];
    
}

+ (void)showCustomIcon:(NSString *)iconName Title:(NSString *)title ToView:(UIView *)view
{
    if (view == nil) view = (UIView*)[UIApplication sharedApplication].delegate.window;
    // 快速显示一个提示信息
    MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:view animated:YES];
    hud.label.text=title;
    hud.label.font=CHINESE_SYSTEM(15);
    // 设置图片
    hud.customView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:iconName]];
    
    // 再设置模式
    hud.mode = MBProgressHUDModeCustomView;
    
    // 隐藏时候从父控件中移除
    hud.removeFromSuperViewOnHide = YES;
    
    //修改弹出窗的色
    hud.bezelView.color =[UIColor whiteColor];
    // 代表需要蒙版效果
    hud.backgroundView.style = MBProgressHUDBackgroundStyleSolidColor;
    hud.backgroundView.color = [UIColor colorWithWhite:0.f alpha:0.6f];
    
    // 3秒之后再消失
    [hud hideAnimated:YES afterDelay:2];
}

+ (void)hideHUDForView:(UIView *)view
{
    if (view == nil) view = (UIView*)[UIApplication sharedApplication].delegate.window;
    [self hideHUDForView:view animated:YES];
}

+ (void)hideHUD
{
    [self hideHUDForView:nil];
}


@end

//
//  MBProgressHUD+MP.h
//  MobileProject
//  当引入MBProgressHUD时把下面的代码开放出来
//  使用如下：
//  [MBProgressHUD showIconMessage:@"默认图,X秒后自动消失" ToView:self.view RemainTime:3];
//  如果没有视图则可以[MBProgressHUD showIconMessage:@"默认图,X秒后自动消失" ToView:nil RemainTime:3];
//  [MBProgressHUD showMessage:@"纯文字,不自动消失" ToView:self.view];  关掉则用：[MBProgressHUD hideHUD];//使用此方法进行隐藏
//  MBProgressHUD *hud = [MBProgressHUD showProgressToView:nil Text:@"loading"];  隐藏：[hud hide:YES];
//  [MBProgressHUD showAutoMessage:@"自动消失"];
//  [MBProgressHUD showSuccess:@"下载完成" ToView:self.view];
//  [MBProgressHUD showError:@"下载失败" ToView:self.view];
//  Created by wujunyang on 16/7/9.
//  Copyright © 2016年 wujunyang. All rights reserved.
//

#import <Foundation/Foundation.h>


#import "MBProgressHUD.h"

@interface MBProgressHUD (MP)


/**
 *  自定义图片的提示，3s后自动消息
 *
 *  @param text 要显示的文字
 *  @param icon 图片地址(建议不要太大的图片)
 *  @param view 要添加的view
 */
+ (void)showCustomIcon:(NSString *)iconName Title:(NSString *)title ToView:(UIView *)view;

/**
 *  自动消失成功提示，带默认图
 *
 *  @param success 要显示的文字
 *  @param view    要添加的view
 */
+ (void)showSuccess:(NSString *)success ToView:(UIView *)view;


/**
 *  自动消失错误提示,带默认图
 *
 *  @param error 要显示的错误文字
 *  @param view  要添加的View
 */
+ (void)showError:(NSString *)error ToView:(UIView *)view;


/**
 *  自动消失提示,带默认图
 *
 *  @param Info 要显示的文字
 *  @param view  要添加的View
 */
+ (void)showInfo:(NSString *)Info ToView:(UIView *)view;

/**
 *  文字+菊花提示,不自动消失
 *
 *  @param message 要显示的文字
 *  @param view    要添加的View
 *
 *  @return MBProgressHUD
 */
+ (MBProgressHUD *)showMessage:(NSString *)message ToView:(UIView *)view;


/**
 *  快速显示一条提示信息
 *
 *  @param showAutoMessage 要显示的文字
 */
+ (void)showAutoMessage:(NSString *)message;


/**
 *  自动消失提示，无图
 *
 *  @param message 要显示的文字
 *  @param view    要添加的View
 */
+ (void)showAutoMessage:(NSString *)message ToView:(UIView *)view;


/**
 *  自定义停留时间，有图
 *
 *  @param message 要显示的文字
 *  @param view    要添加的View
 *  @param time    停留时间
 */
+(void)showIconMessage:(NSString *)message ToView:(UIView *)view RemainTime:(CGFloat)time;


/**
 *  自定义停留时间，无图
 *
 *  @param text 要显示的文字
 *  @param view 要添加的View
 *  @param time 停留时间
 */
+(void)showMessage:(NSString *)message ToView:(UIView *)view RemainTime:(CGFloat)time;


/**
 *  加载视图
 *
 *  @param view 要添加的View
 */
+ (void)showLoadToView:(UIView *)view;



/**
 *  进度条View
 *
 *  @param view     要添加的View
 *  @param model    进度条的样式
 *  @param text     显示的文字
 *
 *  @return 返回使用
 */
+ (MBProgressHUD *)showProgressToView:(UIView *)view Text:(NSString *)text;


/**
 *  隐藏ProgressView
 *
 *  @param view superView
 */
+ (void)hideHUDForView:(UIView *)view;


/**
 *  快速从window中隐藏ProgressView
 */
+ (void)hideHUD;

@end