Convert

Convert to method

In the editor, place the caret at the function or block that you want to convert into a method.
From the main or context menu, select Refactor | Convert to Method.
In the dialog that opens, make changes if necessary:
To perform the refactoring, click Refactor. To see expected changes and make necessary adjustments prior to performing the refactoring, click Preview.

Before	After
`// This function will be converted into a method BOOL isPasswordValid(NSString *password) { return password.length > 4; } - (void)performLogin { // ... // Function's usage if (isPasswordValid(password) == NO) { // ... } }`	`// New method + (BOOL)isPasswordValid:(NSString *)password { return password.length > 4; } - (void)performLogin { // ... // Method's usage if ([LoginViewController isPasswordValid:password] == NO) { // ... } }`

Before

After

// This function will be converted into a method
 BOOL isPasswordValid(NSString *password) {
     return password.length > 4;
 }

 - (void)performLogin {
// ...
     // Function's usage
     if (isPasswordValid(password) == NO) {
       // ...
     }
 }

// New method
+ (BOOL)isPasswordValid:(NSString *)password {
    return password.length > 4;
 }

 - (void)performLogin {
// ...
    // Method's usage
    if ([LoginViewController isPasswordValid:password] == NO) {
      // ...
    }
}

Convert to function

In the editor, place the caret at the method or block that you want to convert into a function.
From the main or context menu, select Refactor | Convert to Function.
In the dialog that opens, make changes if necessary:
To perform the refactoring, click Refactor. To see the expected changes and make the necessary adjustments prior to performing the refactoring, click Preview.

Before	After
`// This method will be converted into a function - (void)setIsValid:(BOOL)isValid forField:(UITextField *)field { field.textColor = isValid ? [UIColor blackColor] : [UIColor redColor]; } - (void)performLogin { // ... if (isEmailValid == NO) { // Method's call [self setIsValid:NO forField:self.textFieldEmail]; } }`	`// New function void setIsValid(BOOL isValid, UITextField *field) { field.textColor = isValid ? [UIColor blackColor] : [UIColor redColor]; } - (void)performLogin { // ... if (isEmailValid == NO) { // Functions's call setIsValid(NO, self.textFieldPassword); } }`

Before

After

// This method will be converted into a function
- (void)setIsValid:(BOOL)isValid forField:(UITextField *)field {
    field.textColor = isValid ? [UIColor blackColor] : [UIColor redColor];
}

- (void)performLogin {
// ...
    if (isEmailValid == NO) {
        // Method's call
        [self setIsValid:NO forField:self.textFieldEmail];
    }
}

// New function
void setIsValid(BOOL isValid, UITextField *field) {
    field.textColor = isValid ? [UIColor blackColor] : [UIColor redColor];
}

- (void)performLogin {
// ...
    if (isEmailValid == NO) {
        // Functions's call
        setIsValid(NO, self.textFieldPassword);
    }
}

Convert to block

In the editor, place the caret at the method or function that you want to convert into a block.
From the main or context menu, select Refactor | Convert to Block.
In the dialog that opens, make changes if necessary:
To perform the refactoring, click Refactor. To see the expected changes and make the necessary adjustments prior to performing the refactoring, click Preview.

Before	After
`// This function will be converted into a block BOOL isPasswordValid(NSString *password) { return password.length > 4; } - (void)performLogin { // ... // Function's call if (isPasswordValid(password) == NO) { // ... } }`	`- (void)performLogin { // ... // New block if (^BOOL(NSString *password) { return password.length > 4; }(password) == NO) // ... }`

Before

After

// This function will be converted into a block
BOOL isPasswordValid(NSString *password) {
    return password.length > 4;
}

- (void)performLogin {
// ...
    // Function's call
    if (isPasswordValid(password) == NO) {
      // ...
    }
}

- (void)performLogin {
// ...
    // New block
    if (^BOOL(NSString *password) {
        return password.length > 4;
    }(password) == NO)
    // ...
}

Convert to property

Place the caret at the instance variable that you want to convert into a property.
From the main or context menu, select Refactor | Convert to Property.
In the dialog that opens, select instance variable(s) you want to convert:
Click OK to perform the refactoring.

Before	After
`@interface AlertParams : NSObject { // These instance variables // will be converted to properties @public NSString _title; NSString _message; } @end`	`@interface AlertParams : NSObject // New properties @property (nonatomic, strong) NSString title; @property (nonatomic, strong) NSString message; @end`

Before

After

@interface AlertParams : NSObject {
// These instance variables
// will be converted to properties
@public
    NSString *_title;
    NSString *_message;
}
@end

@interface AlertParams : NSObject
// New properties
@property (nonatomic, strong) NSString *title;
@property (nonatomic, strong) NSString *message;
@end

Convert to instance variable

Place the caret within the editor window.
From the main or context menu, select Refactor | Convert to Instance Variable.
In the dialog that opens, select the properties you want to convert:
Click OK to perform the refactoring.

Before	After
`@interface AlertParams : NSObject // These properties will be converted // to instance variables @property (nonatomic, strong) NSString title; @property (nonatomic, strong) NSString message; @end`	`@interface AlertParams : NSObject { // New instance variables @public NSString _title; NSString _message; } @end`

Before

After

@interface AlertParams : NSObject
// These properties will be converted
// to instance variables
@property (nonatomic, strong) NSString *title;
@property (nonatomic, strong) NSString *message;
@end

@interface AlertParams : NSObject {
// New instance variables
@public
    NSString *_title;
    NSString *_message;
}
@end

Convert﻿

note

Convert to method﻿

Convert to function﻿

Convert to block﻿

Convert to property﻿

Convert to instance variable﻿

Convert to method

Convert to function

Convert to block

Convert to property

Convert to instance variable