#import "NSArray+CrashArray.h"#import 
     
      @implementation NSObject (Until)- (void)swizzleMethod:(SEL)originalSelector swizzledSelector:(SEL)swizzledSelector{    Class class = [self class];    Method original = class_getInstanceMethod(class, originalSelector);    Method Swizzl   = class_getInstanceMethod(class, swizzledSelector);        BOOL didAdd = class_addMethod(class, originalSelector, method_getImplementation(Swizzl), method_getTypeEncoding(Swizzl));    if (didAdd) {        class_replaceMethod(class, swizzledSelector, method_getImplementation(original), method_getTypeEncoding(original));    }else{        method_exchangeImplementations(original, Swizzl);    }}@end@implementation NSArray (CrashArray)- (id)safeObjectAtIndex:(NSUInteger)index{    if (index
      
        count %lu",(unsigned long)index,(unsigned long)self.count);//#endif        return nil;    }}- (id)safeObjectAtIndex1:(NSUInteger)index{    if (index
       
         count %lu",(unsigned long)index,(unsigned long)self.count);//#endif        return nil;    }}- (id)safeObjectAtIndex2:(NSUInteger)index{    if (index
        
          count %lu",(unsigned long)index,(unsigned long)self.count);//#endif        return nil;    }}- (id)safeObjectAtIndex3:(NSUInteger)index{    if (index
         
           count %lu",(unsigned long)index,(unsigned long)self.count);//#endif        return nil;    }}+ (void)load{    static dispatch_once_t onceToken;    dispatch_once(&onceToken, ^{        @autoreleasepool {            [objc_getClass("__NSArrayI") swizzleMethod:@selector(objectAtIndex:) swizzledSelector:@selector(safeObjectAtIndex:)];            [objc_getClass("__NSArrayI") swizzleMethod:@selector(objectAtIndexedSubscript:) swizzledSelector:@selector(safeObjectAtIndex1:)];            [objc_getClass("__NSArrayM") swizzleMethod:@selector(objectAtIndex:) swizzledSelector:@selector(safeObjectAtIndex2:)];            [objc_getClass("__NSArrayM") swizzleMethod:@selector(objectAtIndexedSubscript:) swizzledSelector:@selector(safeObjectAtIndex3:)];        }    });}@end@implementation NSDictionary(DictinaryCrash)- (void)mutableSetObject:(id)obj forKey:(NSString *)key{    if (obj && key) {        [self mutableSetObject:obj forKey:key];    }}+ (void)load{    static dispatch_once_t onceToken;    dispatch_once(&onceToken, ^{        @autoreleasepool{            [objc_getClass("__NSDictionaryM") swizzleMethod:@selector(setObject:forKey:) swizzledSelector:@selector(mutableSetObject:forKey:)];        }    });}@end