Just to be clear, your program is giving you the correct answer. That is to say, it is doing exactly what you told it to do in your code. 180*M_PI is correctly rounded (per IEEE-754), and gives the value: 565.4866776461627750904881395399570465087890625 dividing that by 180 is also correctly rounded, and gives the result: 3.141592653589793115997963468544185161590576171875 which is … Read more
You can use inputView and inputAccessoryView properties of the text field for this. Create the date picker and set it to the input views of the two text fields. Also create another view for the Done button and it as their accessory view. You will need that button to dismiss the input view. The Done … Read more
Update 04/2016: Justed wanted to update this to say thank you to everyone for all the votes. Please also note that this was originally written way back when … before ARC, before constraints, before … a lot of stuff! So please take this into account when deciding whether to use these techniques. There may be … Read more
Intercepting/reading incoming SMS is not possible on iOS (for privacy reasons).
Doable, but tricky. Launching installed apps, like the FB or Twitter apps, is done using the Custom URL Scheme. These can be used both in other apps as well as on web sites. Here’s an article about how to do this with your own app. Seeing if the URL is there, though, can be tricky. … Read more