nstimer

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how to show a loading bar or progress bar in iPhone application whiele fetching data

I have an iPad application when view is loaded, i am calling method after some time duration so i want to display a loading bar till method is called and data is loaded.[详细]

2023-03-24 13:30 分类：问答
iPhone - does scheduledTimerWithTimeInterval retain userInfo param ?

In that piece of code, I have both NSLog that says dict has a retain count of 1. As the timer can be triggered in a long time if there are many objects into the array, May I retain dict given into use[详细]

2023-03-24 05:41 分类：问答
Scrollview thread timer iphone [duplicate]

This question already has answers here: Closed 10 years ago. Possible Duplicate: UIScrollView pauses NSTimer until scrolling finishes[详细]

2023-03-24 00:09 分类：问答
NSTimer countdown label

It will keep counting down and updating the current time. Anyone has any 开发者_运维知识库idea how to approach this problem? I don\'t see how the NStimer will recognize the date format like this:[详细]

2023-03-23 18:57 分类：问答
Why are my audio sounds not playing on time?

One of my apps has a simple metronome-style feature that plays a click sound a specified number of times per minute (bpm). I\'m doing this by starting an NSTimer, with an interval calculated from the[详细]

2023-03-23 15:28 分类：问答
Background repeated job

I have a question about multithreading in xcode. I have searched for numerous web sites but still cannot get my app to work. I want to do a repeated job every 5sec even the Home button is pressed i.e.[详细]

2023-03-23 01:34 分类：问答
timer in iOS not working

I have this code for a repeated timer in my app: (inside viewDidAppear) NSDate *date = [NSDate dateWithTimeIntervalSinceNow: 3];[详细]

2023-03-22 09:26 分类：问答
Need Help With NSTimer and UISegmentedControl

I have the following code that works for a Timer view. The problem is, when I change segments, while the timer is already running, the label resets, but the button text still stay\'s stop, I need it[详细]

2023-03-21 23:13 分类：问答
How to define a centralized timer for app in iphone?

I need to perform certain tasks (man开发者_Go百科y tasks) at different intervals. How can i implement it with single NStimer instance as individual timers will create overhead?I am doing this exact th[详细]

2023-03-21 10:58 分类：问答
NSTimer questions

So I have two problems but both are related. I created a \"animation\" that moves a progress view when a button is clicked by using NSTimer. This animation works fine the first couple times the butt[详细]

2023-03-21 06:58 分类：问答