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我有一個UITableViewController
與聯繫人,當點擊聯繫人時,我想執行從tableviewcontroller到實際控制器的segue。賽格需要很長時間才能執行
這是我在-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
運行代碼:
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// A lot of code, but it's basically saying: dependent of the section and whether you're searching or not, store the name and number you've selected.
number = [[NSMutableArray alloc]init];
if(indexPath.section == 0 && [self.usersWithNamesAndNumbers count] > 0){
if (self.searchDisplayController.isActive) {
index = [[self.searchDisplayController searchResultsTableView] indexPathForSelectedRow];
name = [[self.searchedUsersWithNamesAndNumbers allKeys] objectAtIndex:index.row];
number = [[self.searchedUsersWithNamesAndNumbers allValues] objectAtIndex:index.row];
} else {
index = [self.tableView indexPathForSelectedRow];
name = [[self.usersWithNamesAndNumbers allKeys] objectAtIndex:index.row];
number = [[self.usersWithNamesAndNumbers allValues] objectAtIndex:index.row];
}
} else {
if (self.searchDisplayController.isActive) {
index = [[self.searchDisplayController searchResultsTableView] indexPathForSelectedRow];
name = [[self.searchedContactNamesWithNumbers allKeys] objectAtIndex:index.row];
number = [[self.searchedContactNamesWithNumbers allValues] objectAtIndex:index.row];
} else {
index = [self.tableView indexPathForSelectedRow];
name = [[self.contactNamesWithNumbers allKeys] objectAtIndex:index.row];
number = [[self.contactNamesWithNumbers allValues] objectAtIndex:index.row];
}
}
[self performSegueWithIdentifier:@"moveToView" sender:self];
[tableView selectRowAtIndexPath:indexPath animated:NO scrollPosition:UITableViewScrollPositionNone];
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
而且我得到了在prepareForSegue
方法中的一些代碼,以及:
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
if([[segue identifier] isEqualToString:@"moveToView"]){
[[segue destinationViewController] setDidComeFromContacts:YES];
[[segue destinationViewController] setNameLabelContents:[NSString stringWithFormat:@"%@,", name]];
[[segue destinationViewController] setPhoneNumberLabelContents:number];
[[segue destinationViewController] setText:@"Segue text"];
[[segue destinationViewController] setCardId:@"EDf8oCCol2"];
}
}
大約需要2-3S處理這段代碼。我還有另外兩支隊伍加入到同一個VC中,而那些隊員的時間差距只有1秒,但仍然是1-2秒。這可能與destinationViewController
內部的設置有什麼關係嗎?或者是賽格之前的設置?
非常感謝
我在代碼中看不到任何東西,應該花費很多時間。你是否在目標控制器的init或viewDidLoad方法中執行任何長時間運行的操作? – rdelmar 2014-11-02 00:01:55
我正在閱讀'viewDidLoad'方法中的聯繫人。我在模擬器中測試了大約1.500個聯繫人。這可能是一個問題嗎?我沒有在主線程上做這件事 – bdv 2014-11-02 00:03:08
嘗試評論這段代碼,看看它是否變得更快。 – rdelmar 2014-11-02 00:04:28