Workaday is a unique timepiece for visual thinkers.
Press the green Time Bar to enter the time you woke up
The Time Bar will show your current activity and next break time
Pending breaks appear as yellow buttons
Press a break button to set it’s status to Taken (dark) or Skipped (light)
Quickly calculate discounts and/or sales tax.
• No typing.
• Large, easy-to-read numbers.
• View total with or without sales tax.
Use the slider to set the Original Price
Use the arrow buttons to adjust the exact amount
Pick a discount amount and set your local sales tax
Touch the price tag to switch between total with and without tax
Now with bill splitting, up to 10 ways!
You don’t need a calculator, you need to know what to write on the credit card receipt.
Tipidy will tell you!
1. Use the slider to set the Bill Amount.
2. Tap to toggle among three tip types. Don’t be a tightwad.
3. Tally the Total.
Too easy!
1. Use the slider to set the dollar amount from the check.
2. Put the tip and total on the check.
3. There is no step 3.
If you have text files in your Xcode project that you use to keep notes and other documentation, remember to exclude them from your builds. Otherwise anyone with your app can view that file by renaming and unzipping your app .ipa file.
To check for these stray files, look in your Groups and Files panel, under Targets –> AppName –> Copy Bundle Resources.
To exclude it (or them), turn on your detail view with SHIFT-COMMAND-e. There’s a column icon that looks like a bullseye that determines if a file is included in your app bundle. Look down that column until you get to the row with your file. Uncheck the box.
Now your text file(s) won’t be included when you build your app.
You don’t need a calculator, you need to know what to write on the credit card receipt.
Tipidy will tell you!
1. Use the slider to set the Bill Amount.
2. Tap to toggle among three tip types. Don’t be a tightwad.
3. Tally the Total.
Too easy!
Example:
CGPoint somePoint = CGPointMake(160.5, 240.0);
NSLog(@”The point is %@”, somePoint);
// result —> program crashes
Reason: A CGPoint is a struct, not an object. It must be wrapped inside an object to work with the format symbol %@
Solution 1: Use the NSStringFromCGPoint() function to wrap a CGPoint into an NSString object
NSLog(@”The point is %@”, NSStringFromCGPoint(somePoint));
// result —> The point is {160, 240}
Solution 2: Since a CGPoint is made up of two floats .x and .y, you can print those directly using dot notation
NSLog(@”The point is %f, %f”, somePoint.x, somePoint.y);
// result —> The point is 160.500000, 240.000000
If you want to print the two floats without the trailing zeros use %g instead of %f
NSLog(@”The point is %g, %g”, somePoint.x, somePoint.y);
// result —> The point is 160.5, 240
Solution 3: You can also put a CGPoint inside an NSValue object
NSValue *somePointValue = [NSValue valueWithCGPoint:somePoint];
NSLog(@”The point value is %@”, somePointValue);
// The point value is NSPoint: {160.5, 240}
// This allows you to put a point inside an NSArray or other collection
NSArray *pointArray = [NSArray arrayWithObjects:somePointValue, somePointValue, somePointValue, nil];
NSLog(@”Array of points %@”, pointArray);
/* result —> Array of points (
NSPoint: {160.5, 240},
NSPoint: {160.5, 240},
NSPoint: {160.5, 240}
)
*/
All of this applies to CGRect, CGSize and CGAffineTransform as well as many other structs. See the documentation for more converter functions. They all start with NSStringFrom…
If you’re new to iPhone software development and serious programming in general, you’re learning a lot of things simultaneously: C, Objective-C, Cocoa, Xcode and Object Oriented Programming.
You’ll make a mountain of errors while you learn. Some of these mistakes are so elementary that experienced programmers can hardly understand how they could happen.
I’ll be posting some common mistakes and errors with solutions.
Boxing NSNumbers and NSValues for inclusion in an NSArray are a verbose pain in the ass.
I mean, just look at this monstrosity:
NSArray *ranks = [NSArray arrayWithObjects:
[NSNumber numberWithInt:5],
[NSNumber numberWithInt:3],
[NSNumber numberWithInt:1],
[NSNumber numberWithInt:1],
nil];
NSString *str = @”sunChainedInInk”;
NSArray *ranks = [NSArray arrayWithObjects:@5i, @3i, @1.0f, @1i];
Have you ever forgotten how old you are?
It seems silly to pull out a calculator and enter your birth year. Even sillier to strain your brain and do the math in your head.
That’s where “How Old” comes in. Just launch it and it will remind you. No fuss, no muss.
Available for free at the iTunes app store.
