UILabel,UIAlertview自定义

#import <UIKit/UIKit.h>

@interface DGLabel : UILabel

@property (nonatomic, assign) UIEdgeInsets textInsets; // 控制字体与控件边界的间隙

@end

#import "DGLabel.h"

@implementation DGLabel

- (instancetype)init {
    if (self = [super init]) {
        _textInsets = UIEdgeInsetsZero;
    }
    return self;
}

- (instancetype)initWithFrame:(CGRect)frame {
    if (self = [super initWithFrame:frame]) {
        _textInsets = UIEdgeInsetsZero;
    }
    return self;
}

- (void)drawTextInRect:(CGRect)rect {
    [super drawTextInRect:UIEdgeInsetsInsetRect(rect, _textInsets)];
}

@end

#import <UIKit/UIKit.h>

@interface DGAlertView : UIAlertView


- (void)dismissWithClickedButtonIndex:(NSInteger)buttonIndex animated:(BOOL)animated;

@end

#import "DGAlertView.h"

@implementation DGAlertView

/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
    // Drawing code
}
*/

- (void)dismissWithClickedButtonIndex:(NSInteger)buttonIndex animated:(BOOL)animated{
    if (buttonIndex == 0) {
        //[super dismissWithClickedButtonIndex:buttonIndex animated:animated]; // 消失
    }else{
        // ...
        // 不消失
    }
}


@end

if ([responseObject[@"ios"][@"is_forced_update"] integerValue]) {//是否强制更新
                DGAlertView *alert = [[DGAlertView alloc]initWithTitle:@"发现新版本"
                                                               message:nil
                                                              delegate:self
                                                     cancelButtonTitle:nil
                                                     otherButtonTitles:@"立即更新", nil];
                alert.tag = 3;
                DGLabel *textLabel = [[DGLabel alloc] init];
                textLabel.font = [UIFont systemFontOfSize:13];
                textLabel.numberOfLines =0;
                textLabel.textAlignment =NSTextAlignmentLeft;
                textLabel.textInsets = UIEdgeInsetsMake(0.f, 10.f, 0.f, 10.f); // 设置左内边距
                textLabel.text = responseObject[@"ios"][@"content"];
                [alert setValue:textLabel forKey:@"accessoryView"];
                [alert show];
            }else {
                UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"已存在最新版本"
                                                               message:latestVersion
                                                              delegate:self
                                                     cancelButtonTitle:@"忽略"
                                                     otherButtonTitles:@"更新", nil];
                alert.tag = 2;
                [alert show];
            }