我必须显示具有不同时间延迟的不同类型的警报，逐个显示警报。一个警报显示并停留一段时间然后下一个警报显示延迟....一个一个显示这是我的代码
for ( int j = 0; j < [[CMAppData appData].arrayDistanceAlert count]; j++)
{
CMBeaconsDisplayList * displayData = [[CMAppData appData].arrayDistanceAlert objectAtIndex:j];
if ([displayData.type isEqualToString:@"1"])
{
if ([displayData.type isEqualToString:@"1"] &&[displayData.displayForTime isEqualToString:@"0"]) {
[self performSelector:@selector(dismissAlertView:) withObject:displayData afterDelay:[displayData.displayForTime intValue]*60];
}
else{
double delayInSeconds =[displayData.displayForTime intValue] *10 ;
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
NSLog(@"%f",delayInSeconds);
UIAlertView * alert =[[UIAlertView alloc] initWithTitle:displayData.title message:displayData.content delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"pause", nil];
alert.alertViewStyle =UIAlertViewStyleDefault;
[alert show];
[self performSelector:@selector(dismissUIAlertViewType:) withObject:alert afterDelay:15];
});
}
}
else {
if ([displayData.type isEqualToString:@"2"]&&[displayData.displayForTime isEqualToString:@"0"]) {
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:displayData.title message:displayData.content delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:nil];
[alertView show];
}
else{
double delayInSeconds =[displayData.displayForTime intValue]*10;
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
CustomIOSAlertView *alertView = [[CustomIOSAlertView alloc] init];
UIView *customView = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, [UIScreen mainScreen].bounds.size.width-20, [UIScreen mainScreen].bounds.size.height-100)];
customView.backgroundColor = [UIColor blueColor];
[alertView setContainerView:customView];
UIScrollView *MyScrollVw= [[UIScrollView alloc]initWithFrame:CGRectMake(0 ,0 ,[UIScreen mainScreen].bounds.size.width-20 ,[UIScreen mainScreen].bounds.size.height-100)];
MyScrollVw.delegate= self;
[MyScrollVw setShowsHorizontalScrollIndicator:NO];
[MyScrollVw setShowsVerticalScrollIndicator:YES];
MyScrollVw.scrollEnabled= YES;
MyScrollVw.userInteractionEnabled= YES;
MyScrollVw.contentSize= CGSizeMake([UIScreen mainScreen].bounds.size.width-20 ,1150);//(width,height)
[customView addSubview:MyScrollVw];
UILabel * lblTitle = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 0.0, customView.frame.size.width, 30.0)];
lblTitle.text = displayData.title;
lblTitle.font = [UIFont fontWithName:@"Arial" size:15.0];
lblTitle.numberOfLines = 1;
lblTitle.baselineAdjustment = UIBaselineAdjustmentAlignBaselines; // or UIBaselineAdjustmentAlignCenters, or UIBaselineAdjustmentNone
lblTitle.adjustsFontSizeToFitWidth = YES;
lblTitle.minimumScaleFactor = 10.0f/12.0f;
lblTitle.clipsToBounds = YES;
lblTitle.backgroundColor = [UIColor clearColor];
lblTitle.textColor = [UIColor whiteColor];
lblTitle.textAlignment = NSTextAlignmentCenter;
[MyScrollVw addSubview:lblTitle];
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0.0, lblTitle.frame.origin.y+lblTitle.frame.size.height, customView.frame.size.width, 250)];
displayData.image = [displayData.image stringByReplacingOccurrencesOfString:@" " withString:@"%20"];
if(displayData.image && ![displayData.image isKindOfClass:[NSNull class]])
{
[imageView sd_setImageWithURL:[NSURL URLWithString:displayData.image] placeholderImage:nil options:/* DISABLES CODE */ (0) == 0 ? SDWebImageRefreshCached : 0];
}
if ([displayData.image length]==0)
{
[imageView setImage:[UIImage imageNamed:@""]];
}
[MyScrollVw addSubview:imageView];
NSString *videoString = displayData.video;
NSString *lastWord = [[videoString componentsSeparatedByString:@"="] lastObject];
self.playerView = [[YTPlayerView alloc]init];
self.playerView.frame = CGRectMake(0.0, imageView.frame.origin.y+imageView.frame.size.height, customView.frame.size.width, 250.0);
[self.playerView loadWithVideoId:lastWord playerVars:@{@"playsinline":@1}];
[MyScrollVw addSubview:self.playerView];
UIButton * btnPlayAudio = [[UIButton alloc] initWithFrame:CGRectMake(10.0,self.playerView .frame.origin.y+self.playerView .frame.size.height, customView.frame.size.width-20, 30)];
[ btnPlayAudio addTarget:self action:@selector(playAudio:) forControlEvents:UIControlEventTouchUpInside];
btnPlayAudio.backgroundColor = [UIColor redColor];
[btnPlayAudio setTitle:@"Play Audio" forState:UIControlStateNormal];
[btnPlayAudio setAccessibilityValue:displayData.audio];
[MyScrollVw addSubview:btnPlayAudio];
UILabel * lblDescription = [[UILabel alloc] initWithFrame:CGRectMake(10.0,btnPlayAudio .frame.origin.y + btnPlayAudio .frame.size.height, customView.frame.size.width-20, 100)];
lblDescription.text = displayData.content;
lblDescription.font = [UIFont fontWithName:@"Arial" size:15.0];
lblDescription.numberOfLines = 0;
[lblDescription sizeToFit];
lblDescription.baselineAdjustment = UIBaselineAdjustmentAlignBaselines; // or UIBaselineAdjustmentAlignCenters, or UIBaselineAdjustmentNone
lblDescription.adjustsFontSizeToFitWidth = YES;
lblDescription.minimumScaleFactor = 10.0f/12.0f;
lblDescription.clipsToBounds = YES;
lblDescription.backgroundColor = [UIColor clearColor];
lblDescription.textColor = [UIColor whiteColor];
lblDescription.textAlignment = NSTextAlignmentCenter;
[MyScrollVw addSubview:lblDescription];
[alertView show];
[self performSelector:@selector(dismissImageAlertView:) withObject:alertView afterDelay:15];
});
delayInSeconds = delayInSeconds * 10;
}
}
}
答案 0 :(得分：-1)
setTimeout：允许在一段时间后运行一次函数。
completionHandler