Beautifying the code

Spacing

• Indent using 4 spaces. Never indent with tabs. Be sure to set this preference in Xcode.
• Method braces and other braces (if/else/switch/while etc.) always open on the same line as the statement but close on a new line.

Preferred:

if (user.isHappy) {
    //Do something
}
else {
    //Do something else
}

Not Preferred:

if (user.isHappy)
{
  //Do something
} else {
  //Do something else
}

• There should be exactly one blank line between methods to aid in visual clarity and organization. Whitespace within methods should separate functionality, but often there should probably be new methods.
• Prefer using auto-synthesis. But if necessary, @synthesize and @dynamic should each be declared on new lines in the implementation.
• Colon-aligning method invocation should often be avoided. There are cases where a method signature may have more than 3 colons and colon-aligning makes the code more readable. Always colon align methods, even if they contain blocks.

Preferred:

[UIView animateWithDuration:1.0
                 animations:^{
                     // something
                 }
                 completion:^(BOOL finished) {
                     // something
                 }];

Not Preferred:

[UIView animateWithDuration:1.0 animations:^{
    // something 
} completion:^(BOOL finished) {
    // something
}];

If auto indentation falls into bad readability, declare blocks in variables before or reconsider your method signature.

Line Breaks

Line breaks are an important topic since this style guide is focused for print and online readability.

For example:

self.productsRequest = [[SKProductsRequest alloc] initWithProductIdentifiers:productIdentifiers];

A long line of code like the one above should be carried on to the second line adhering to this style guide's Spacing section (two spaces).

self.productsRequest = [[SKProductsRequest alloc] 
  initWithProductIdentifiers:productIdentifiers];

Brackets

Use Egyptian brackets for:

• control structures (if-else, for, switch)

Non-Egyptian brackets are accepted for:

• class implementations (if any)
• method implementations