UITableView background color iOS 9

问题

I have a UITableView that I want to set its background color to transparent. Background color for the table view and all subviews at interface builder is set to transparent. It works fine for iOS 8 & 7. but, not iOS 9. any idea?

cellForRowAtIndexPath method:

[cell setSelectedBackgroundView:[[UIView alloc] init]];
[cell.selectedBackgroundView setBackgroundColor:[UIColor clearColor]];
[cell setBackgroundColor:[UIColor clearColor]];
[cell.contentView setBackgroundColor:[UIColor clearColor]];
[cell setBackgroundView:[[UIView alloc] init]];
[cell.backgroundView setBackgroundColor:[UIColor clearColor]];

回答1:

Objective-c:

[self.yourTableView setBackgroundColor:[UIColor clearColor]];

Swift:

self.yourTableView.backgroundColor = .clear

XCode 7.0 bug. Not picking up from Storyboard

回答2:

This happens to me even when creating an UITableView in code, and setting it as a private property of my UIViewController. However, if the UITableView is a global variable, this problem does not occur.

I suspect Apple is rooting around the ivars on my UIViewController, setting UITableView's background colors to UIColor whiteColor without asking me. I have checked, and the calls to do go through setBackgroundColor on the UITableView.

来源：https://stackoverflow.com/questions/31903910/uitableview-background-color-ios-9