iOS之@selector的函数传递多个参数

1、一般情况，使用 self performSelector:SEL withObject:id方法

[self performSelectorOnMainThread:@selector(testAA:) withObject:[NSArray arrayWithObjects:@"1",@"2", nil] waitUntilDone:NO];

-(void) testAA:(NSArray*)data{

    if (data==nil||data.count!=2) {
        return;
    }
    NSInteger num=[(NSString*)data[0] intValue];
    NSInteger index=[data[1] intValue];
}

2、NSTimer：将传参的对象储存在了NSTimer的userInfo的字典中。

NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
[dict setObject:oldView forKey:@"oldView"];
[NSTimer scheduledTimerWithTimeInterval:0.0 target:self selector:@selector(onTimer:) userInfo:dict repeats:NO];
[dict release];

- (void)onTimer:(NSTimer *)timer {
    UIView *oldView = [[timer userInfo] objectForKey:@"oldView"];
}

3、UIButton类：通过设置tag来使用

UIButton * markButton=[[UIButton alloc] initWithFrame:CGRectMake(280, 0, 30, 30)];
[email protected]"参数值"; //这里是你要传递的参数值
[markButton addTarget:self action:@selector(addMark:)  forControlEvents:UIControlEventTouchUpInside];

-(BOOL) addMark:(UIButton *)btn {
    NSLog(@"%@",btn.tag];
｝

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