DYFRuntimeProvider
DYFRuntimeProvider 封装了 Objective-C 的运行时，并提供了一些常见用法。
组 (ID:614799921)
安装
使用 CocoaPods
target 'Your target name'
pod 'DYFRuntimeProvider'
or
pod 'DYFRuntimeProvider', '~> 2.0.2'
使用方法
将 #import "DYFRuntimeProvider.h" 添加到您的源代码中。
获取一个类的所有方法名
1. 获取一个类实例的所有方法名
NSArray *instMethods = [DYFRuntimeProvider supplyMethodListWithClass:UITableView.class];
NSLog(@"========instMethods: %@", instMethods);
2. 获取一个类的所有类方法名
NSArray *clsMethods = [DYFRuntimeProvider supplyClassMethodListWithClass:UIView.class];
NSLog(@"========clsMethods: %@", clsMethods);
获取一个类的所有变量名
NSArray *ivars = [DYFRuntimeProvider supplyIvarListWithClass:UIButton.class];
NSLog(@"========ivars: %@", ivars);
获取一个类的所有属性名
NSArray *properties = [DYFRuntimeProvider supplyPropertyListWithClass:UIButton.class];
NSLog(@"========properties: %@", properties);
以这个类为例。例如。
@interface Teacher : NSObject
@property (nonatomic, assign) NSInteger age;
@property (nonatomic, copy) NSString *name;
@property (nonatomic, copy) NSString *address;
- (void)eatWithFoods:(NSDictionary *)foods;
- (void)runWithStep:(NSInteger)step;
- (void)run2WithStep:(NSInteger)step;
+ (void)decInfo:(NSString *)name age:(NSInteger)age;
+ (void)decInfo2:(NSString *)name age:(NSInteger)age;
@end
@implementation Teacher
- (void)eatWithFoods:(NSDictionary *)foods
{
NSLog(@"========%@ eat foods: %@", _name, foods);
}
- (void)runWithStep:(NSInteger)step
{
NSLog(@"========%s 1 %@ runs %ld steps", __func__, _name, step);
}
- (void)run2WithStep:(NSInteger)step
{
NSLog(@"========%s 2 %@ runs %ld steps", __func__, _name, step);
}
+ (void)decInfo:(NSString *)name age:(NSInteger)age
{
NSLog(@"========decInfo name: %@, age: %ld", name, age);
}
+ (void)decInfo2:(NSString *)name age:(NSInteger)age
{
NSLog(@"========decInfo2 name: %@, age: %ld", name, age);
}
添加方法
void rt_eatWithFoods2(id self, SEL _cmd, NSDictionary *foods)
{
NSLog(@"========%@, %@ eat foods: %@", self, NSStringFromSelector(_cmd), foods);
}
- (void)viewDidLoad
{
[super viewDidLoad];
SEL eatSel = NSSelectorFromString(@"rt_eatWithFoods:");
[DYFRuntimeProvider addMethodWithClass:Teacher.class selector:eatSel impSelector:@selector(eatWithFoods:)];
SEL eatSel2 = NSSelectorFromString(@"eatWithFoods2:");
[DYFRuntimeProvider addMethodWithClass:Teacher.class selector:eatSel2 imp:(IMP)rt_eatWithFoods2 types:"v@:@"];
Teacher *teacher = [[Teacher alloc] init];
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
if ([teacher respondsToSelector:eatSel]) {
[teacher performSelector:eatSel withObject:@{@"name": @"meat", @"number": @1}];
}
if ([teacher respondsToSelector:eatSel2]) {
[teacher performSelector:eatSel2 withObject:@{@"name": @"meat", @"number": @1}];
}
#pragma clang diagnostic pop
}
交换两个方法
- (void)viewDidLoad
{
[super viewDidLoad];
[DYFRuntimeProvider exchangeMethodWithClass:Teacher.class selector:@selector(runWithStep:) anotherSelector:@selector(run2WithStep:)];
Teacher *teacher = [[Teacher alloc] init];
[teacher runWithStep:50];
[teacher run2WithStep:100];
[DYFRuntimeProvider exchangeClassMethodWithClass:Teacher.class selector:@selector(decInfo:age:) anotherSelector:@selector(decInfo2:age:)];
[Teacher decInfo:@"David" age:40];
[Teacher decInfo2:@"Liming" age:28];
}
替换方法
- (void)viewDidLoad
{
[super viewDidLoad];
[DYFRuntimeProvider replaceMethodWithClass:Teacher.class selector:@selector(runWithStep:) targetSelector:@selector(run2WithStep:)];
Teacher *teacher = [[Teacher alloc] init];
[teacher runWithStep:50];
[teacher run2WithStep:100];
}
交换两个方法
- (void)viewDidLoad
{
[super viewDidLoad];
[DYFRuntimeProvider swizzleMethodWithClass:Teacher.class selector:@selector(runWithStep:) swizzledSelector:@selector(run2WithStep:)];
Teacher *teacher = [[Teacher alloc] init];
[teacher runWithStep:50];
[teacher run2WithStep:100];
[DYFRuntimeProvider swizzleClassMethodWithClass:Teacher.class selector:@selector(decInfo:age:) swizzledSelector:@selector(decInfo2:age:)];
[Teacher decInfo:@"David" age:40];
[Teacher decInfo2:@"Liming" age:28];
}
字典与模型的转换
1. 将字典转换为模型
Teacher *teacher = (Teacher *)[DYFRuntimeProvider asObjectWithDictionary:@{@"name": @"高粟", @"age": @26, @"address": @"xx市xx"} forClass:Teacher.class];
if (teacher) {
NSLog(@"========teacher: %@, %@, %ld, %@", teacher, teacher.name, (long)teacher.age, teacher.address);
}
Teacher *teacher2 = [[Teacher alloc] init];
[DYFRuntimeProvider asObjectWithDictionary:@{@"name": @"高粟", @"age": @26, @"address": @"xx市xx"} forObject:teacher2];
NSLog(@"========teacher2: %@, %@, %ld, %@", teacher2, teacher2.name, (long)teacher2.age, teacher2.address);
2. 将模型转换为字典
NSDictionary *dict = [DYFRuntimeProvider asDictionarywithObject:teacher];
NSLog(@"========dict: %@", dict);
存档与解存档
以这个类为例。例如。
@interface Transaction : NSObject <NSCoding>
@property (nonatomic, assign) NSUInteger state;
@property (nonatomic, copy) NSString *productIdentifier;
@property (nonatomic, copy) NSString *userIdentifier;
@property (nonatomic, copy) NSString *originalTransactionTimestamp;
@end
@implementation Transaction
- (instancetype)initWithCoder:(NSCoder *)aDecoder
{
self = [super init];
if (self) {
[DYFRuntimeProvider decode:aDecoder forObject:self];
}
return self;
}
- (void)encodeWithCoder:(NSCoder *)aCoder
{
[DYFRuntimeProvider encode:aCoder forObject:self];
}
@end
1. 存档
- (void)viewDidLoad
{
[super viewDidLoad];
NSString *documentPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES) lastObject];
NSString *filePath = [documentPath stringByAppendingPathComponent:@"Transaction.data"];
[self archive:filePath];
}
- (void)archive:(NSString *)path
{
Transaction *transaction = [[Transaction alloc] init];
[DYFRuntimeProvider archiveWithObject:transaction forClass:Transaction.class toFile:path];
}
或者
@implementation Transaction
- (void)encodeWithCoder:(NSCoder *)aCoder
{
[DYFRuntimeProvider encode:aCoder forObject:self];
}
@end
2. 解存档
- (void)viewDidLoad
{
[super viewDidLoad];
NSString *documentPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES) lastObject];
NSString *filePath = [documentPath stringByAppendingPathComponent:@"Transaction.data"];
[self unarchive:filePath];
}
- (void)unarchive:(NSString *)path
{
Transaction *transaction = [DYFRuntimeProvider unarchiveWithFile:path forClass:Transaction.class];
}
或者
@implementation Transaction
- (instancetype)initWithCoder:(NSCoder *)aDecoder
{
self = [super init];
if (self) {
[DYFRuntimeProvider decode:aDecoder forObject:self];
}
return self;
}
@end
添加分类属性
@interface UIApplication (Pt)
@property (nonatomic, strong) Teacher *teacher;
@end
static NSString *kTeacherKey = @"TeacherKey";
@implementation UIApplication (Pt)
- (Teacher *)teacher
{
return (Teacher *)[DYFRuntimeProvider getAssociatedObject:self key:&kTeacherKey];
}
- (void)setTeacher:(Teacher *)teacher
{
[DYFRuntimeProvider setAssociatedObject:self key:&kTeacherKey value:teacher policy:OBJC_ASSOCIATION_RETAIN_NONATOMIC];
}
@end
- (void)viewDidLoad
{
[super viewDidLoad];
Teacher *teacher2 = [[Teacher alloc] init];
[DYFRuntimeProvider asObjectWithDictionary:@{@"name": @"高粟", @"age": @26, @"address": @"xx市xx"} forObject:teacher2];
UIApplication.sharedApplication.teacher = teacher2;
NSLog(@"========teacher: %@", UIApplication.sharedApplication.teacher);
}
获取和修改实例变量属性。
Teacher *teacher = (Teacher *)[DYFRuntimeProvider asObjectWithDictionary:@{@"name": @"高粟", @"age": @26, @"address": @"xx市xx"} forClass:Teacher.class];
NSString *teacherName = [DYFRuntimeProvider getInstanceVarWithName:@"_name" forObject:teacher];
NSLog(@"========teacher name: %@", teacherName);
[DYFRuntimeProvider setInstanceVarWithName:@"_name" value:@"李想" forObject:teacher];
NSLog(@"========teacher newName: %@", teacher.name);
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