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iOS tableView无数据 占位图封装

iOS tableView无数据 占位图封装

作者: PANZHI蜕变 | 来源:发表于2020-02-28 23:23 被阅读0次

适用于各种无数据view显示

SYLoadingResultView.h
#import <UIKit/UIKit.h>

typedef NS_ENUM(NSUInteger, SYLoadingResultStyle) {
    SYLoadingResultDefault, //两个标题一个按钮（默认)
    SYLoadingResultImageTitleBtn, //一张图片、一个标题、一个按钮
    SYLoadingResultImageTitle, //一张图片、一个标题。
    SYLoadingResultImageTwoTitle, //一张图片、两个标题
    SYLoadingResultImageTwoTitleBtn, //一张图片、两个标题、一个按钮
};

@protocol SYLoadingResultViewDeleagte <NSObject>

@optional
- (void)loadingResultViewBtnClicked:(UIButton *)sender;

@end

typedef void(^callBackBlock)(UIButton *btn);

@interface SYLoadingResultView : UIView

@property (nonatomic, weak) id <SYLoadingResultViewDeleagte> delegate;

+ (SYLoadingResultView *)showLoadingResultOnView:(UIView *)view withBlock:(callBackBlock)block;

+ (SYLoadingResultView *)showLoadingResultOnView:(UIView *)View withStyle:(SYLoadingResultStyle)style withBlock:(callBackBlock)block;


+ (SYLoadingResultView *)showNotDataWithOnView:(UIView *)view;
+ (SYLoadingResultView *)showLoadingResultView:(UIView *)view reloadBlock:(callBackBlock)block;

+ (void)dismissOnView:(UIView *)view;

- (void)setUpCallBackBlock:(callBackBlock)block;

- (void)setMainTitleStr:(NSString *)string;
- (void)setMainTitleAttriStr:(NSAttributedString *)attriStr;

- (void)setSubTitleStr:(NSString *)string;
- (void)setSubTitleAttriStr:(NSAttributedString *)attriStr;

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

- (void)setBtnStr:(NSString *)BtnStr;

- (void)setContentViewBackgroundColor:(UIColor *)backgroundColor;

- (void)setContainerViewCenterY:(CGFloat)centerY;

@end





SYLoadingResultView.m

#import "SYLoadingResultView.h"
#import "Masonry.h"

//static NSString *const defaultMainLabelStr = @"数据加载失败";
//static NSString *const defaultSubLabelStr = @"请检查您的手机是否联网，点击按钮重新加载";
//static NSString *const defaultBtnStr = @"重新加载";


static NSString * defaultMainLabelStr = @"数据加载失败";
static NSString * defaultSubLabelStr = @"请检查您的手机是否联网，点击按钮重新加载";
static NSString * defaultBtnStr = @"重新加载";



@interface SYLoadingResultView ()

@property (nonatomic, assign) SYLoadingResultStyle style;
@property (nonatomic, assign) CGFloat containerCenterY;
@property (nonatomic, strong) UIView *backgroundView;
@property (nonatomic, strong) UIView *containerView;
@property (nonatomic, strong) UIImageView *imageView;
@property (nonatomic, strong) UILabel *mainLabel;
@property (nonatomic, strong) UILabel *subLabel;
@property (nonatomic, strong) UIButton *button;
@property (nonatomic, copy) callBackBlock clickBlock;

@end

@implementation SYLoadingResultView

#pragma mark - LifeCycle

- (instancetype)initWithFrame:(CGRect)frame
{
    self = [self initWithStyle:SYLoadingResultDefault withFrame:frame];
    return self;
}

- (instancetype)initWithStyle:(SYLoadingResultStyle)style
{
    self = [self initWithStyle:style withFrame:CGRectZero];
    return self;
}

- (instancetype)initWithStyle:(SYLoadingResultStyle)style withFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        defaultMainLabelStr = JDLocalized(@"errorPage_title", nil);
        defaultSubLabelStr  = JDLocalized(@"errorPage_tip", nil);
        defaultBtnStr       = JDLocalized(@"errorPage_btnText", nil);
        
        _style = style;
        _containerCenterY = 0;
        
        _backgroundView = [UIView new];
        _backgroundView.backgroundColor = JDColor(0xf5f5f5);
        
        _containerView = [UIView new];
        _containerView.backgroundColor = JDColor(0xf5f5f5);
        
        _imageView = [UIImageView new];
        _imageView.image = [UIImage imageNamed:@"No-net"];
        
        _mainLabel = [UILabel new];
        _mainLabel.text = defaultMainLabelStr;
        _mainLabel.font = [UIFont systemFontOfSize:17];
        _mainLabel.textColor = JDColor(0x333333);
        _mainLabel.textAlignment = NSTextAlignmentCenter;
        _mainLabel.numberOfLines = 0;
        switch (style) {
            case SYLoadingResultDefault:
                _mainLabel.text = defaultMainLabelStr;
                break;
            case SYLoadingResultImageTitleBtn:
                _mainLabel.text = defaultMainLabelStr;
                break;
            case SYLoadingResultImageTitle:
                _mainLabel.text = defaultMainLabelStr;
                break;
            case SYLoadingResultImageTwoTitle:
                _mainLabel.text = defaultMainLabelStr;
                break;
            default:
                break;
        }
        
        _subLabel = [UILabel new];
        _subLabel.text = defaultSubLabelStr;
        _subLabel.font = [UIFont systemFontOfSize:13];
        _subLabel.textColor = JDColor(0x999999);
        _subLabel.textAlignment = NSTextAlignmentCenter;
        _subLabel.numberOfLines = 0;
        
        _button = [UIButton buttonWithType:UIButtonTypeCustom];
        [_button setTitle:defaultBtnStr forState:UIControlStateNormal];
        [_button setTitleColor:JDColor(0xe6454a) forState:UIControlStateNormal];
        [_button setTitleColor:[UIColor whiteColor] forState:UIControlStateHighlighted];
        UIImage *reloadBtnImg = [UIImage imageNamed:@"Roundbutton"];
        reloadBtnImg = [reloadBtnImg resizableImageWithCapInsets:UIEdgeInsetsMake(2, 19, 2, 19)
                                                    resizingMode:UIImageResizingModeStretch];
        [_button setBackgroundImage:reloadBtnImg forState:UIControlStateNormal];
        UIImage *reloadSelBtnImg = [UIImage imageNamed:@"RoundbuttonSelected"];
        reloadSelBtnImg = [reloadSelBtnImg resizableImageWithCapInsets:UIEdgeInsetsMake(2, 19, 2, 19)
                                                          resizingMode:UIImageResizingModeStretch];
        [_button setBackgroundImage:reloadSelBtnImg forState:UIControlStateHighlighted];
        [_button addTarget:self action:@selector(buttonClicked) forControlEvents:UIControlEventTouchUpInside];
    }
    return self;
}

- (void)updateConstraints
{
    [self addSubview:self.backgroundView];
    [self.backgroundView mas_remakeConstraints:^(MASConstraintMaker *make) {
        make.edges.mas_equalTo(UIEdgeInsetsZero);
    }];
    
    [self updateConstraintsWithStyle:self.style];
    
    [self addSubview:self.containerView];
    [self.containerView mas_remakeConstraints:^(MASConstraintMaker *make) {
        make.left.right.mas_equalTo(0);
        make.centerY.mas_equalTo(self.containerCenterY);
    }];
    
    [super updateConstraints];
}

- (void)updateConstraintsWithStyle:(SYLoadingResultStyle)style
{
    [self.containerView removeAllSubviews];
    switch (style) {
        case SYLoadingResultDefault:
        {
            [self.containerView addSubview:self.mainLabel];
            [self.mainLabel mas_remakeConstraints:^(MASConstraintMaker *make) {
                make.top.left.right.mas_equalTo(0);
            }];
            
            [self.containerView addSubview:self.subLabel];
            [self.subLabel mas_remakeConstraints:^(MASConstraintMaker *make) {
                make.top.mas_equalTo(self.mainLabel.mas_bottom).mas_offset(10);
                make.left.right.mas_equalTo(0);
            }];
            
            [self.containerView addSubview:self.button];
            [self.button mas_remakeConstraints:^(MASConstraintMaker *make) {
                make.top.mas_equalTo(self.subLabel.mas_bottom).mas_offset(20);
                make.centerX.mas_equalTo(0);
                make.size.mas_equalTo(CGSizeMake(150, 40));
                make.bottom.mas_equalTo(0);
            }];
        }
            break;
        case SYLoadingResultImageTitleBtn:
        {
            [self.containerView addSubview:self.imageView];
            [self.imageView mas_remakeConstraints:^(MASConstraintMaker *make) {
                make.top.mas_offset(0);
                make.centerX.mas_equalTo(self.containerView.mas_centerX);
                make.size.mas_equalTo(self.imageView.image.size);
            }];
            
            [self.containerView addSubview:self.mainLabel];
            [self.mainLabel mas_remakeConstraints:^(MASConstraintMaker *make) {
                make.top.mas_equalTo(self.imageView.mas_bottom).mas_offset(10);
                make.left.right.mas_equalTo(0);
            }];
            
            [self.containerView addSubview:self.button];
            [self.button mas_remakeConstraints:^(MASConstraintMaker *make) {
                make.top.mas_equalTo(self.mainLabel.mas_bottom).mas_offset(20);
                make.size.mas_equalTo(CGSizeMake(150, 40));
                make.centerX.mas_equalTo(self.containerView.mas_centerX);
                make.bottom.mas_equalTo(0);
            }];
        }
            break;
        case SYLoadingResultImageTitle:
        {
            [self.containerView addSubview:self.imageView];
            [self.imageView mas_remakeConstraints:^(MASConstraintMaker *make) {
                make.top.mas_offset(0);
                make.centerX.mas_equalTo(self.containerView.mas_centerX);
                make.size.mas_equalTo(self.imageView.image.size);
            }];
            
            [self.containerView addSubview:self.mainLabel];
            [self.mainLabel mas_remakeConstraints:^(MASConstraintMaker *make) {
                make.top.mas_equalTo(self.imageView.mas_bottom).mas_offset(10);
                make.left.right.mas_equalTo(0);
                make.bottom.mas_equalTo(0);
            }];
        }
            break;
        case SYLoadingResultImageTwoTitle:
        {
            [self.containerView addSubview:self.imageView];
            [self.imageView mas_remakeConstraints:^(MASConstraintMaker *make) {
                make.top.mas_offset(0);
                make.centerX.mas_equalTo(self.containerView.mas_centerX);
                make.size.mas_equalTo(self.imageView.image.size);
            }];
            
            [self.containerView addSubview:self.mainLabel];
            [self.mainLabel mas_remakeConstraints:^(MASConstraintMaker *make) {
                make.top.mas_equalTo(self.imageView.mas_bottom).mas_offset(10);
                make.left.right.mas_equalTo(0);
            }];
            
            [self.containerView addSubview:self.subLabel];
            [self.subLabel mas_remakeConstraints:^(MASConstraintMaker *make) {
                make.top.mas_equalTo(self.mainLabel.mas_bottom).mas_offset(10);
                make.left.right.mas_equalTo(0);
                make.bottom.mas_equalTo(0);
            }];
        }
            break;
        case SYLoadingResultImageTwoTitleBtn:
        {
            [self.containerView addSubview:self.imageView];
            [self.imageView mas_remakeConstraints:^(MASConstraintMaker *make) {
                make.top.mas_offset(0);
                make.centerX.mas_equalTo(self.containerView.mas_centerX);
                make.size.mas_equalTo(self.imageView.image.size);
            }];
            
            [self.containerView addSubview:self.mainLabel];
            [self.mainLabel mas_remakeConstraints:^(MASConstraintMaker *make) {
                make.top.mas_equalTo(self.imageView.mas_bottom).mas_offset(10);
                make.left.right.mas_equalTo(0);
            }];

            [self.containerView addSubview:self.subLabel];
            [self.subLabel mas_remakeConstraints:^(MASConstraintMaker *make) {
                make.top.mas_equalTo(self.mainLabel.mas_bottom).mas_offset(10);
                make.left.right.mas_equalTo(0);
            }];

            [self.containerView addSubview:self.button];
            [self.button mas_remakeConstraints:^(MASConstraintMaker *make) {
                make.top.mas_equalTo(self.subLabel.mas_bottom).mas_offset(20);
                make.size.mas_equalTo(CGSizeMake(150, 40));
                make.centerX.mas_equalTo(self.containerView.mas_centerX);
                make.bottom.mas_equalTo(0);
            }];
        }
            break;
        default:
            break;
    }
}

+ (SYLoadingResultView *)showLoadingResultOnView:(UIView *)view withBlock:(callBackBlock)block
{
    return [SYLoadingResultView showLoadingResultOnView:view withStyle:SYLoadingResultDefault withBlock:block];
}

+ (SYLoadingResultView *)showLoadingResultOnView:(UIView *)View withStyle:(SYLoadingResultStyle)style withBlock:(callBackBlock)block
{
    if (!View) {
        return nil;
    }
    SYLoadingResultView *loadingResultView = [[SYLoadingResultView alloc] initWithStyle:style];
    [View addSubview:loadingResultView];
    [loadingResultView mas_remakeConstraints:^(MASConstraintMaker *make) {
        make.edges.mas_equalTo(UIEdgeInsetsZero);
    }];
    
    [loadingResultView setUpCallBackBlock:block];
    
    return loadingResultView;
}

+ (SYLoadingResultView *)showNotDataWithOnView:(UIView *)view
{
    SYLoadingResultView *resultView = [SYLoadingResultView showLoadingResultOnView:view withStyle:SYLoadingResultImageTitle withBlock:nil];
    
    UIImage *img = [UIImage imageNamed:@"error_notdata"];
    [resultView setImg:img];
    
    NSMutableAttributedString *attriStr = [[NSMutableAttributedString alloc] initWithString:@"没有数据记录"];
    [attriStr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:14.0] range:NSMakeRange(0, attriStr.length)];
    //添加文字背景颜色
    [attriStr addAttribute:NSForegroundColorAttributeName value:JDColor(0x999999) range:NSMakeRange(0, attriStr.length)];
    [resultView setMainTitleAttriStr:attriStr];
    
    [resultView updateConstraintsIfNeeded];
    return resultView;
}

+ (SYLoadingResultView *)showLoadingResultView:(UIView *)view reloadBlock:(callBackBlock)block
{
    
    SYLoadingResultView *resultView = [SYLoadingResultView showLoadingResultOnView:view withStyle:SYLoadingResultImageTitleBtn withBlock:block];
    
    UIImage *img = [UIImage imageNamed:@"error_noNet"];
    [resultView setImg:img];
    
    NSMutableAttributedString *attriStr = [[NSMutableAttributedString alloc] initWithString:@"亲, 您的网络不给力哦!"];
    [attriStr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:14.0] range:NSMakeRange(0, attriStr.length)];
    //添加文字背景颜色
    [attriStr addAttribute:NSForegroundColorAttributeName value:JDColor(0x999999) range:NSMakeRange(0, attriStr.length)];
    [resultView setMainTitleAttriStr:attriStr];
    
    [resultView setBtnStr:@"刷新看看"];
    
    [resultView updateConstraintsIfNeeded];
    return resultView;
}

+ (void)dismissOnView:(UIView *)view
{
    [view.subviews enumerateObjectsUsingBlock:^(__kindof UIView * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
        if ([obj isKindOfClass:[SYLoadingResultView class]]) {
            [obj dismiss];
        }
    }];
}

- (void)dismiss
{
    [self removeFromSuperview];
}

- (void)setContainerViewCenterY:(CGFloat)centerY
{
    self.containerCenterY = centerY;
    [self setNeedsUpdateConstraints];
}

- (void)buttonClicked
{
    if ([self.delegate respondsToSelector:@selector(loadingResultViewBtnClicked:)]) {
        [self.delegate loadingResultViewBtnClicked:self.button];
        [self dismiss];
        return;
    }
    if (self.clickBlock != nil) {
       self.clickBlock(self.button);
        [self dismiss];
    } else {
        [self dismiss];
    }
}

#pragma mark - Setter&Getter

- (void)setUpCallBackBlock:(callBackBlock)block
{
    if (block) {
        self.clickBlock = block;
    }
}

- (void)setMainTitleStr:(NSString *)string
{
    self.mainLabel.text = string;
    [self setNeedsUpdateConstraints];
}

- (void)setMainTitleAttriStr:(NSAttributedString *)attriStr
{
    self.mainLabel.attributedText = attriStr;
    [self setNeedsUpdateConstraints];
}

- (void)setSubTitleStr:(NSString *)string
{
    self.subLabel.text = string;
    [self setNeedsUpdateConstraints];
}

- (void)setSubTitleAttriStr:(NSAttributedString *)attriStr
{
    self.subLabel.attributedText = attriStr;
    [self setNeedsUpdateConstraints];
}

- (void)setImg:(UIImage *)image
{
    self.imageView.image = image;
    [self setNeedsUpdateConstraints];
}

- (void)setBtnStr:(NSString *)BtnStr
{
    [self.button setTitle:BtnStr forState:UIControlStateNormal];
    [self setNeedsUpdateConstraints];
}

- (void)setContentViewBackgroundColor:(UIColor *)backgroundColor
{
    self.containerView.backgroundColor = backgroundColor;
}

@end

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