求助关于scrollToRowAtIndexPath 不执行

Posted 2023-03-29

参考技术A - (void) keyboardWasShown:(NSNotification *) notif
NSDictionary *info = [notif userInfo];
NSValue *value = [info objectForKey:UIKeyboardFrameBeginUserInfoKey];
CGSize keyboardSize = [value CGRectValue].size;

//NSLog(@"keyBoard:%f", keyboardSize.height); //216
//keyboardWasShown = YES;
CGRect frame = self.myTableView.frame;
frame.size.height -= keyboardSize.height;
self.myTableView.frame = frame;
NSIndexPath *localIndexPath = [NSIndexPath indexPathForRow:[self.array count] inSection:0];
UITableViewCell *cell = [self.myTableView cellForRowAtIndexPath:localIndexPath];
[self.myTableView scrollRectToVisible:cell.frame animated:YES];


- (void) keyboardWasHidden:(NSNotification *) notif
NSDictionary *info = [notif userInfo];

NSValue *value = [info objectForKey:UIKeyboardFrameBeginUserInfoKey];
CGSize keyboardSize = [value CGRectValue].size;
NSLog(@"keyboardWasHidden keyBoard:%f", keyboardSize.height);
//keyboardWasShown = NO;

self.myTableView.frame = self.view.bounds;


- (void)viewDidLoad

[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
NSMutableArray *temp = [[NSMutableArray alloc] initWithObjects:@"111",@"222",@"333", nil];
self.array = temp;
[temp release];
temp = nil;
self.myTableView.editing = YES;

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWasShown:) name:UIKeyboardDidShowNotification object:nil];

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWasHidden:) name:UIKeyboardDidHideNotification object:nil];


你的采纳是我前进的动力，还有不懂的地方，请继续追问。