YYXC_Student/jiaPei/PrecautionsView.m

//
//  PrecautionsView.m
//  jiaPei
//
//  Created by EchoShacolee on 2018/4/25.
//  Copyright © 2018年 JCZ. All rights reserved.
//

#import "PrecautionsView.h"

@interface PrecautionsView()

@property(copy,nonatomic)NSString *content;
@property(copy,nonatomic)UITextView *textV;

@end

@implementation PrecautionsView

+(PrecautionsView *)showPrecautionsViewWithContent:(NSString *)content{
    PrecautionsView *view = [[PrecautionsView alloc]init];
    view.content = content;
    [view showView];
    return view;
}

- (instancetype)init
{
    self = [super init];
    if (self) {
        self.frame = kFrame;
        [self layoutAllSubviews];
    }
    return self;
}

-(void)layoutAllSubviews{
    
    /*创建灰色背景*/
    UIView *bgView = [[UIView alloc] initWithFrame:self.bounds];
    bgView.backgroundColor = [UIColor colorWithWhite:.01 alpha:.4];
    [self addSubview:bgView];
    
    /*添加手势事件,移除View*/
    UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dismissContactView)];
    [bgView addGestureRecognizer:tapGesture];
    
    /*创建显示内容*/
    UITextView *textV = [[UITextView alloc]init];
    textV.contentInset = UIEdgeInsetsMake(10, 10, 10, 10);
    _textV = textV;
    textV.layer.masksToBounds = YES;
    textV.layer.cornerRadius = 5;
    textV.editable = NO;
    textV.text = self.content;
    textV.textColor = [UIColor darkGrayColor];
    textV.frame = CGRectMake(20, kNavOffSet+20, kSize.width-40, kSize.height-kNavOffSet-20-kSafeAreaBottomHeight-100);
    [self addSubview:textV];
    
    UIButton *btn = [UIButton buttonWithType:UIButtonTypeSystem];
    [btn setTitle:@"关闭" forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor colorWithRed:35/255.0 green:160/255.0 blue:227/255.0 alpha:1] forState:UIControlStateNormal];
    [btn.titleLabel setAdjustsFontSizeToFitWidth:YES];
    btn.layer.masksToBounds = YES;
    btn.layer.cornerRadius = 5;
    btn.backgroundColor = [UIColor whiteColor];
    btn.frame = CGRectMake(20, kSize.height-95-kSafeAreaBottomHeight, kSize.width-40, 40);
    [btn addTarget:self action:@selector(dismissContactView) forControlEvents:UIControlEventTouchUpInside];
    [self addSubview:btn];
}

-(void)setContent:(NSString *)content{
    if (_content != content) {
        _content = content;
//        _textV.text = _content;
        //设置行间距
        NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
        paragraphStyle.lineSpacing = 8;// 字体的行间距
        
        NSDictionary *attributes = @{
                                     NSFontAttributeName:[UIFont systemFontOfSize:15],
                                     NSParagraphStyleAttributeName:paragraphStyle
                                     };
        _textV.attributedText = [[NSAttributedString alloc] initWithString:self.content attributes:attributes];
    }
}

// 这里加载在了window上
-(void)showView
{
    self.alpha = 1.0;
    UIWindow * window = [UIApplication sharedApplication].windows[0];
    [window addSubview:self];
}

#pragma mark - 手势点击事件,移除View
- (void)dismissContactView{

    __weak typeof(self)weakSelf = self;
    [UIView animateWithDuration:0.5 animations:^{
        weakSelf.alpha = 0;
    } completion:^(BOOL finished) {
        [weakSelf removeFromSuperview];
    }];
}

@end