IOS APP画面防截屏_dyj095_ios 防截屏

大大的周 02-07 1506

首先声明下面的技术方案并非我的原创，也是通过百度搜索并验证是可行的，并把具体实现方式公布出来，希望可以帮到有同样需求的小伙伴门，共同进步~~

需求：为IOS自已开发的应用的所有画面添加防截屏、防录制的功能

解决依据是根据UITextField只要设置了setSecureTextEntry为true后，在进行录屏或者截屏的时候都会被系统隐去。

由于我们的app中即有非故事板画面又有故事板画面，所以只能一个画面一个画面的添加；也可以创建一个非故事板类型的超类，来负责自动替换根UIView。

解决方案：

1、如果是非故事板类型的ViewController，在viewDidLoad方法开始处将self.view替换为防截屏的UIView,参见下面的示例代码：

- (void)viewDidLoad { [super viewDidLoad]; // 防截屏 UITextField *bgTextField = [[UITextField alloc] init]; [bgTextField setSecureTextEntry:true]; UIView *bgView = bgTextField.subviews.firstObject; [bgView setUserInteractionEnabled:true]; self.view = bgView; // 其它初始化代码 }

2、如果是故事板类型的ViwController的，需要将故事板中将UIView改为SecurityScreenShortView（通过继承UIView后，在初始化方法中初始化防截屏安全区）即可，过程如下所示： ? 1）、打开故事板设计画面； ? 2）、选中相应ViewController的根UIView； ? 3）、在最右侧设计器中将Class中的UIView改为SecurityScreenShortView后保存即可

SecurityScreenShortView.h

// // SecurityScreenShortView.h // // Created by 杜燕军 on 2022/8/1. // #import <UIKit/UIKit.h> NS_ASSUME_NONNULL_BEGIN API_AVAILABLE(ios(13.2)) @interface SecurityScreenShortView : UIView @property (nonatomic, strong) UITextField *textField; @property (nonatomic, strong) UIView *safeZone; + (UIView *)creactWithFrame:(CGRect)frame; @end NS_ASSUME_NONNULL_END

SecurityScreenShortView.m

// // SecurityScreenShortView.m // // Created by 杜燕军 on 2022/8/1. // #import "SecurityScreenShortView.h" @implementation SecurityScreenShortView + (UIView *)creactWithFrame:(CGRect)frame { return [[SecurityScreenShortView alloc] initWithFrame:frame]; } - (instancetype)initWithCoder:(NSCoder *)coder { self = [super initWithCoder:coder]; if (self) { [self addSafeZoneView]; } return self; } - (instancetype)initWithFrame:(CGRect)frame { self = [super initWithFrame:frame]; if (self) { [self addSafeZoneView]; } return self; } - (void)addSafeZoneView { [self addSubview:self.safeZone]; UILayoutPriority lowPriority = UILayoutPriorityDefaultLow - 1; UILayoutPriority heightPriority = UILayoutPriorityDefaultHigh - 1; self.safeZone.translatesAutoresizingMaskIntoConstraints = NO; [self.safeZone setContentHuggingPriority:lowPriority forAxis:UILayoutConstraintAxisVertical]; [self.safeZone setContentHuggingPriority:lowPriority forAxis:UILayoutConstraintAxisHorizontal]; [self.safeZone setContentCompressionResistancePriority:heightPriority forAxis:UILayoutConstraintAxisVertical]; [self.safeZone setContentCompressionResistancePriority:heightPriority forAxis:UILayoutConstraintAxisHorizontal]; [self addConstraints:@[ [NSLayoutConstraint constraintWithItem:self.safeZone attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqual toItem:self attribute:NSLayoutAttributeTop multiplier:1 constant:0], [NSLayoutConstraint constraintWithItem:self.safeZone attribute:NSLayoutAttributeBottom relatedBy:NSLayoutRelationEqual toItem:self attribute:NSLayoutAttributeBottom multiplier:1 constant:0], [NSLayoutConstraint constraintWithItem:self.safeZone attribute:NSLayoutAttributeLeading relatedBy:NSLayoutRelationEqual toItem:self attribute:NSLayoutAttributeLeading multiplier:1 constant:0], [NSLayoutConstraint constraintWithItem:self.safeZone attribute:NSLayoutAttributeTrailing relatedBy:NSLayoutRelationEqual toItem:self attribute:NSLayoutAttributeTrailing multiplier:1 constant:0], ]]; } - (void)addSubview:(UIView *)view { if (self.safeZone == view) { [super addSubview:view]; }else{ [self.safeZone addSubview:view]; } } - (void)insertSubview:(UIView *)view atIndex:(NSInteger)index { if (self.safeZone == view) { [super insertSubview:view atIndex:index]; }else{ [self.safeZone insertSubview:view atIndex:index]; } } - (void)insertSubview:(UIView *)view aboveSubview:(UIView *)siblingSubview { if (self.safeZone == view) { [super insertSubview:view aboveSubview:siblingSubview]; }else{ [self.safeZone insertSubview:view aboveSubview:siblingSubview]; } } - (void)insertSubview:(UIView *)view belowSubview:(UIView *)siblingSubview { if (self.safeZone == view) { [super insertSubview:view belowSubview:siblingSubview]; }else{ [self.safeZone insertSubview:view belowSubview:siblingSubview]; } } - (UITextField *)textField{ if(!_textField){ _textField = [[UITextField alloc]init]; _textField.secureTextEntry = YES; _textField.enabled = NO; } return _textField; } - (UIView *)safeZone{ if(!_safeZone){ // 获取配置参数“是否开启防截屏”，默认值是0（未开启防截屏功能）此处不需要可以删除 int noScreenShortEnable = [[ParamManager manager] getIntParam:@“noScreen” :0]; if (noScreenShortEnable == 1) { // 防截屏 _safeZone = self.textField.subviews.firstObject ?: [[UIView alloc] init]; _safeZone.userInteractionEnabled = YES; for (UIView *v in _safeZone.subviews) { [v removeFromSuperview]; } } else { // 非防截屏 _safeZone = [[UIView alloc] init]; } } return _safeZone; } @end

故事板设置参照图

引用的方案链接：

1、简书-shyizne 【iOS防截屏-完全解决】

2、由于github故障的原因，所以故事板的链接找不到了；?