Question

我正在尝试在我的云套件笔记应用程序中实现pull to refresh，但是当我下拉以运行刷新时，我收到以下错误：

2016-01-24 12:36:01.078 ClipCloud2016Beta [13325：521249] - [ClipCloud2016Beta.MasterViewController HandleRefresh：]：无法识别的选择器发送到实例0x7fd77b4612f0 2016-01-24 12：36：01.084 ClipCloud2016Beta [13325：521249] *由于未捕获的异常'NSInvalidArgumentException'终止应用程序，原因：' - [ClipCloud2016Beta.MasterViewController HandleRefresh：]：无法识别的选择器发送到实例0x7fd77b4612f0' * 第一次抛出调用堆栈：（ 0 CoreFoundation 0x000000010db5ae65 exceptionPreprocess + 165 1 libobjc.A.dylib 0x000000010f89adeb objc_exception_throw + 48 2 CoreFoundation 0x000000010db6348d - [NSObject（NSObject）doesNotRecognizeSelector：] + 205 3 CoreFoundation 0x000000010dab090a ___转发_ + 970 4 CoreFoundation 0x000000010dab04b8 _CF_forwarding_prep_0 + 120 5 UIKit 0x000000010e379194 - [UIApplication sendAction：to：from：forEvent：] + 92 6 UIKit 0x000000010e4e86fc - [UIControl sendAction：to：forEvent：] + 67 7 UIKit 0x000000010e4e89c8 - [UIControl _sendActionsForEvents：withEvent：] + 311 8 UIKit 0x000000010ececc0b - [UIRefreshControl _setRefreshControlState：notify：] + 456 9 UIKit 0x000000010ecf4ec3 52 - [_ UIRefreshControlModernContentView _snappingMagic] _block_invoke + 57 10 libdispatch.dylib 0x0000000110a8de5d _dispatch_call_block_and_release + 12 11 libdispatch.dylib 0x0000000110aae49b _dispatch_client_callout + 8 12 libdispatch.dylib 0x0000000110a93746 _dispatch_after_timer_callback + 334 13 libdispatch.dylib 0x0000000110aae49b _dispatch_client_callout + 8 14 libdispatch.dylib 0x0000000110aa18a5 _dispatch_source_latch_and_call + 1750 15 libdispatch.dylib 0x0000000110a9c830 _dispatch_source_invoke + 1057 16 libdispatch.dylib 0x0000000110a96111 _dispatch_main_queue_callback_4CF + 1324 17 CoreFoundation 0x000000010dabad09 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE + 9 18 CoreFoundation 0x000000010da7c2c9 __CFRunLoopRun + 2073 19 CoreFoundation 0x000000010da7b828 CFRunLoopRunSpecific + 488 20 GraphicsServices 0x0000000111a38ad2 GSEventRunModal + 161 21 UIKit 0x000000010e377610 UIApplicationMain + 171 22 ClipCloud2016Beta 0x000000010d81925d main + 109 23 libdyld.dylib 0x0000000110ae292d start + 1 24 ??? 0x0000000000000001 0x0 + 1 ） libc ++ abi.dylib：以NSException类型的未捕获异常终止（lldb）

我在UITableview的故事板中启用了刷新

在ViewDidLoad()

中实施了以下内容

 self.refreshControl?.addTarget(self, action: "HandleRefresh:", forControlEvents: UIControlEvents.ValueChanged)

这是我的刷新方法：

    func handleRefresh(refreshControl: UIRefreshControl) {


    self.tableView.reloadData()
    refreshControl.endRefreshing()
}

行self.tableView.reloadData()在我的代码中的其他地方工作是没有价值的。

当错误发生时，Xcode也可能没有价值Xcode最终会在我的AppDelegate类中出现

class AppDelegate: UIResponder, UIApplicationDelegate, UISplitViewControllerDelegate {

Answer 1

问题由评论者解决

HandleRefresh vs handleRefresh方法和调用之间的拼写错误。

Answer 2

这个固定的矿井：

refreshControl.addTarget(self, action:
        #selector(ViewController.HandleRefresh(sender:)),
                             for: UIControlEvents.valueChanged)

拉动以刷新此错误

2 个答案: