iOS升级页面弹框

最新推荐文章于 2024-03-12 10:04:24 发布

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最新推荐文章于 2024-03-12 10:04:24 发布

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本文链接：https://blog.youkuaiyun.com/qq_16588415/article/details/52882053

这篇博客介绍了如何在iOS应用中实现一个升级页面弹窗。通过创建一个黑色半透明的背景视图（dimView），并在其上添加一个包含更新提示信息的imageView，包括一个关闭按钮、更新标题、更新文字和立即更新按钮。通过监听按钮事件来处理用户交互，如取消更新和立即更新操作。

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UIWindow *window = [UIApplication sharedApplication].keyWindow;

//1.创建一个大View 蒙版 (加在谁的身上)

UIView *dimView = [[UIView alloc]initWithFrame:kScreenBounds];

dimView.backgroundColor = [UIColor blackColor];

dimView.alpha = 0.4;

[window addSubview:dimView];

//2.在蒙版里面放一张 imageView

UIImageView *imageView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"bg"]];

//开启用户交互

imageView.userInteractionEnabled = YES;

imageView.center = window.center;

[window addSubview:imageView];

//3.在imageView 里面放一个按钮

UIButton *btn = [[UIButton alloc]init];

UIImage *image = [UIImage imageNamed: @"close1"];

[btn setImage:image forState:UIControlStateNormal];

btn.frame = CGRectMake(imageView.bounds.size.width - image.size.width-30, 80, image.size.width, image.size.height);

[imageView addSubview:btn];

//4.监听按钮

[btn addTarget:self action:@selector(cancel:) forControlEvents:UIControlEventTouchUpInside];

//5.添加更新文字

UILabel* updateTitle = [[UILabel alloc]initWithFrame:CGRectMake(imageView.bounds.size.width/2.0-90, 163, 180, 30)];

// updateTitle.backgroundColor = [UIColor greenColor];

updateTitle.text = @"软件更新提示";

updateTitle.textAlignment = NSTextAlignmentCenter;

updateTitle.textColor = LColor(246, 45, 45);

[imageView addSubview:updateTitle];

UITextView* updateText = [[UITextView alloc]initWithFrame:CGRectMake(imageView.bounds.size.width/2.0-80, 190, 180, 100)];

updateText.backgroundColor = [UIColor whiteColor];

updateText.editable = NO;

updateText.text = messageStr;

NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];

paragraphStyle.lineSpacing = 3; //行距

NSDictionary *attributes = @{ NSFontAttributeName:[UIFont systemFontOfSize:15], NSParagraphStyleAttributeName:paragraphStyle,NSForegroundColorAttributeName:LColor(137, 137, 137)};

updateText.attributedText = [[NSAttributedString alloc]initWithString: updateText.text attributes:attributes];

[imageView addSubview:updateText];

// UIButton* updateNowBtn = [[UIButton alloc]initWithFrame:CGRectMake(imageView.bounds.size.width/2.0-60, 300, 120, 30)];

UIButton* updateNowBtn = [UIButton buttonWithType:UIButtonTypeCustom];

updateNowBtn.layer.cornerRadius = 3;

updateNowBtn.frame = CGRectMake(imageView.bounds.size.width/2.0-60, 303, 120, 30);

// updateNowBtn.clipsToBounds = YES;

updateNowBtn.backgroundColor = LColor(246, 45, 45);

[updateNowBtn setTitle:@"立即更新" forState:UIControlStateNormal];

[updateNowBtn addTarget:self action:@selector(nowUpdata) forControlEvents:UIControlEventTouchUpInside];

[updateNowBtn setTitleColor:LColor(255, 255, 255) forState:UIControlStateNormal];

[imageView addSubview:updateNowBtn];

//关联

_dimView = dimView;

_imageView = imageView;

-(void)cancel:(uibutton*)btn{

[UIView animateWithDuration:0.5 animations:^{

_imageView.alpha = 0.1;

_dimView.alpha = 0.1;

} completion:^(BOOL finished) {

[UIView animateWithDuration:0.5 animations:^{

[_imageView removeFromSuperview];

[_dimView removeFromSuperview];

}];

}