iOS 获取当前方法的调用者

获取堆栈信息后解析

  // 此方法转自别处
  NSArray *syms = [NSThread  callStackSymbols]; 
  NSLog(@"<%@ %p> %@ - caller: %@ ", [self class], self, NSStringFromSelector(_cmd),[syms objectAtIndex:1]);
  NSString *string = [[[syms objectAtIndex:1] componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"[]"]] objectAtIndex:1];

举个例子
创建类A类B

image.png

类A：

@interface A : NSObject

- (void)callB;

@end

@implementation A

- (void)callB{
    B *b = [B new];
    [b method];
}
@end

类B：

@interface B : NSObject

- (void)method;

@end

@implementation B
- (void)method{
    NSArray *syms = [NSThread  callStackSymbols];
    NSLog(@"<%@ %p> %@ - caller: %@ ", [self class], self, NSStringFromSelector(_cmd),[syms objectAtIndex:1]);
}
@end

输出LOG

2018-01-31 09:58:25.568186+0800 Test[23788:4600557] 
<B 0x600000018490> method - caller: 1   Test 0x000000010bc999a5 -[A callB] + 69

[A callB]

B类method方法在A类callB方法调用

直接获取到字符串A callB

 NSString *string = [[[syms objectAtIndex:1] componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"[]"]] objectAtIndex:1];