使用cocoapods将Aspects添加到project中。
target 'Project' do
use_frameworks!
pod 'Aspects', '~> 1.4.1'
end
1.主要使用Aspects 中以下两个方法对project中进行监控
#pragma mark - Public Aspects API
+ (id<AspectToken>)aspect_hookSelector:(SEL)selector
withOptions:(AspectOptions)options
usingBlock:(id)block
error:(NSError **)error {
return aspect_add((id)self, selector, options, block, error);
}
/// @return A token which allows to later deregister the aspect.
- (id<AspectToken>)aspect_hookSelector:(SEL)selector
withOptions:(AspectOptions)options
usingBlock:(id)block
error:(NSError **)error {
return aspect_add(self, selector, options, block, error);
}
2.导入头文件
#import <Aspects/Aspects.h>
3.简单的使用示例
+(void)Aspect {
//如果对project中所有ViewController进行监控。
//可以对UIViewController中的方法进行勾取。
//例如:viewWillAppear:、viewDidLoad()等方法。
[UIViewController aspect_hookSelector:@selector(viewWillAppear:)
withOptions:AspecPositionAfter
usingBlock:^(id<AspectInfo> info) {
NSStirng *className = NSStringFromClass([[info instance] class]);
NSLog(@"%@",className);
} error:NULL];
//对ViewController中方法的监控
//例如:对ViewController中dismissHUD:(CGFloat)delayFloat;方法进行监控。
[ViewController aspect_hookSelector:@selector(dismissHUD:)
withOptions:AspectPositionAfter
usingBlock:^(id<AspectInfo> info, CGFloat delayFloat) {
//调用的实例对象
id instance = info.instance;
//原始的方法
id invocation = info.originalInvocation;
//参数
id arguments = info.arguments;
//原始的方法,再次调用
[invocation invoke];
//监控方法的参数值
NSLog(@"方法参数值:%f",delayFloat);
}error:NULL];
}
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