#import "UITableView+Swizzle.h"
#import <UIKit/UIKit.h>
#import <objc/objc.h>
#import <objc/runtime.h>
@implementation UITableView (Swizzle)
实现：一次性设置tableView的位置
+ (void)load
{
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
[self swizzleInstanceMethod:@selector(initWithFrame:style:) withNewMethod:@selector(yq_initWithFrame:style:)];// 在这里替换
});
}
- (instancetype)yq_initWithFrame:(CGRect)frame style:(UITableViewStyle)style
{
UITableView *tableView = [self yq_initWithFrame:frame style:style];
[tableView setSeparatorStyle:UITableViewCellSeparatorStyleNone];
return tableView;
}
/**
* 替换实例方法(对象方法)
*
* @param originalSel 原方法SEL
* @param newSel 新方法SEL
*/
+ (BOOL)swizzleInstanceMethod:(SEL)originalSel withNewMethod:(SEL)newSel
{
Method originalMethod = class_getInstanceMethod(self, originalSel);
Method newMethod = class_getInstanceMethod(self, newSel);
if (!originalMethod || !newMethod) return NO;
class_addMethod(self, originalSel, class_getMethodImplementation(self, originalSel), method_getTypeEncoding(originalMethod));
class_addMethod(self, newSel, class_getMethodImplementation(self, newSel), method_getTypeEncoding(newMethod));
method_exchangeImplementations(class_getInstanceMethod(self, originalSel), class_getInstanceMethod(self, newSel));
return YES;
}
TableViewCell_Swizzle
#import "UITableViewCell+Swizzle.h"
@implementation UITableViewCell (Swizzle)
+ (void)load
{
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
[self swizzleClassMethod:@selector(initWithStyle:reuseIdentifier:) withNewMethod:@selector(yq_initWithStyle:reuseIdentifier:)];
});
}
- (instancetype)yq_initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
UITableViewCell *cell = [self yq_initWithStyle:style reuseIdentifier:reuseIdentifier];
[cell setSelectionStyle:UITableViewCellSelectionStyleNone];
return cell;
}
@end