ios 中自定义ToolBar上的点击按钮不管用

#####解决方法
- (void)setupToolBar{
   
- (void)setupToolBar{
    
    ##SCREEN_WIDTH  屏幕宽度
    UIToolbar * bar = [[UIToolbar alloc] initWithFrame:CGRectMake(0,0,SCREEN_WIDTH,44)];
    UIButton* button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(SCREEN_WIDTH - 60 , 7,50, 30);
    [button setTitleColor:RGB(51, 51, 51) forState:UIControlStateNormal];
    [button setTitle:@"完成"forState:UIControlStateNormal];
    button.titleLabel.font = kFont(17);//字体的大小
    [button addTarget:self action:@selector(finishClickEvent:) forControlEvents:UIControlEventTouchUpInside];
    
    [bar addSubview:button];
    self.noteContentView.inputAccessoryView =   bar;
    
     [bar  layoutIfNeeded];
     
     NSArray * subViewArray = [bar subviews];
     for (id view in subViewArray) {
         if ([view isKindOfClass:(NSClassFromString(@"_UIToolbarContentView"))]) {
             UIView *testView = view;
             testView.userInteractionEnabled = NO;
         }
     }
     
     }