1.Duplicate Symbols for Architecture arm64

Solutions:

1. The same file exists in this project

2. Check if you accidentally wrote.h instead of.m in the #import header.

2. Troubleshoot cell view problems caused by cell reuse

NSString *cellIdentifier = [NSString stringWithFormat:@"Cell%zd%zd", [indexPath section], [indexPath row]];  iOSTableViewCell*cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier]; if (! cell) { cell = [[iOSTableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:cellIdentifier]; cell.selectionStyle = UITableViewCellSelectionStyleNone; } reture cell;Copy the code

3. Why is the data not displayed when the network request succeeds? Why is it that when you click on any row of cells, the page details are the same?

Solutions:

1. Check whether the reload method in tableView was written after the data was successful.

2. Determine whether section and row data are passed in.

4. Why does the controller page not display the title set in tabBar after setting the title in tabBarItem?

Solutions:

After analyzing the UI interface and Hierarchy on the left in Debug View Hierarchy, I found:

The title set by self.title has a higher priority than the title set by tabbar, so when tabbar is clicked, the title set by self.title is displayed first.

— Although it did not take a few minutes to solve, but I found that some apple things still have a lot of details, need to step slowly, come on, Xiao Li.