我有一个很奇怪的问题,我不明白。
我有一个 UITableView
,当我点击一行时它会导致崩溃。
self.tableView.backgroundColor = [UIColor clearColor];
self.tableView.delegate = self; <-- If I remove this, no crash caused
self.tableView.dataSource = self;
有趣的是,我在 didSelectRowAtIndexPath
中根本没有任何代码,而且仍然崩溃?
日志并没有说明太多,我得到了 (lldb)
但是当进一步查看时,我从调试器中得到了这个。
[UITableView _selectRowAtIndexPath:animated:scrollPosition:notifyDelegate:]
是什么原因?我不明白如何解决这个问题。
Thread 1, Queue : com.apple.main-thread
#0 0x02b1909f in objc_msgSend ()
#1 0x01afb285 in -[UITableView _selectRowAtIndexPath:animated:scrollPosition:notifyDelegate:] ()
#2 0x01afb4ed in -[UITableView _userSelectRowAtPendingSelectionIndexPath:] ()
#3 0x025055b3 in __NSFireDelayedPerform ()
#4 0x034f9376 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ ()
#5 0x034f8e06 in __CFRunLoopDoTimer ()
#6 0x034e0a82 in __CFRunLoopRun ()
#7 0x034dff44 in CFRunLoopRunSpecific ()
#8 0x034dfe1b in CFRunLoopRunInMode ()
#9 0x03b387e3 in GSEventRunModal ()
#10 0x03b38668 in GSEventRun ()
#11 0x01a4bffc in UIApplicationMain ()
#12 0x000125bd in main at /Users/damianmendez/dev/trigd/jagodu-ios/Jagodu/Jagodu/main.m:16
#13 0x03210725 in start ()
有人有什么建议吗? 谢谢。
编辑: 在像@Phillip Millis 这样的启用僵尸之后也告诉我,我得到了这个:
*** -[RefineSearchViewController tableView:didSelectRowAtIndexPath:]: message sent to deallocated instance 0x9d24030
更新:
添加 RefineSearchViewController(它有一个 UITableView)的代码
RefineSearchViewController *refineSearchController = [[RefineSearchViewController alloc] initWithTransparentViews];
refineSearchController.parentDelegate = self.parentDelegate;
CGRect searchFrame = refineSearchController.view.frame;
searchFrame.origin.y = titleLabel.frame.origin.y + titleLabel.frame.size.height + 5;
refineSearchController.view.frame = searchFrame;
[self.refineSearchContainer addSubview:refineSearchController.view];
[self.view addSubview:self.refineSearchContainer];
RefineSearchViewController
初始化代码
-(RefineSearchViewController*)init {
self = [super init];
if (self) {
JoDModel *model = [JoDModel defaultModel];
self.title = @"Search profile";
_propertyNames = model.searchProfilePropertyNames;
_properties = model.searchProfileProperties;
_doneInvocation = nil;
_isRefineSearch = NO;
_transparentViews = NO;
}
return self;
}
-(RefineSearchViewController*)initWithTransparentViews {
self = [self init];
if (self) {
_transparentViews = YES;
}
return self;
}
-(void)viewDidLoad {
[super viewDidLoad];
self.tableView.backgroundColor = [UIColor clearColor];
self.tableView.delegate = self;
self.tableView.dataSource = self;
self.titleShadow.hidden = !_addShadow;
JoDModel *model = [JoDModel defaultModel];
UIBarButtonItem *doneButton;
if (_isRefineSearch) {
doneButton = [[UIBarButtonItem alloc] initWithTitle:@"Search" style:UIBarButtonItemStylePlain target:self action:@selector(done)];
_keyboardBg = [[UIView alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height, self.view.frame.size.width, model.keyboardHeight)];
_keyboardBg.backgroundColor = [UIColor blackColor];
[self.view addSubview:_keyboardBg];
} else {
doneButton = [[UIBarButtonItem alloc] initWithTitle:@"Search" style:UIBarButtonItemStylePlain target:self action:@selector(performSearch)];
}
self.navigationItem.rightBarButtonItem = doneButton;
// When entering this view controller, the user will probably make a new search soon, therefore it's important to update the geo location
if (model.shareMyLocation) {
JoDAppDelegate *appDelegate = (JoDAppDelegate*)[UIApplication sharedApplication].delegate;
[appDelegate updateLocation];
}
}
-(void)dealloc {
self.tableView = nil;
_propertyNames = nil;
_properties = nil;
_doneInvocation = nil;
_titleShadow = nil;
_keyboardBg = nil;
}
最佳答案
您正在将 RefineSearchViewController
创建为局部变量。假设您的项目使用 ARC,当该引用超出范围(创建它的方法结束)时,它将被释放。
在创建它的 View Controller 中创建一个强大的属性并将其分配给它。
关于iOS - didSelectRowAtIndexPath 导致应用程序崩溃,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/20612330/