如何使UITableViewController在顶部透明?

In my iPhone application I have presented controller:

在我的iPhone应用中，我展示了控制器:

 ShareResourceItemViewController* controller = [[ShareResourceItemViewController alloc] initWithSharedResourceItem:[selectedItems objectAtIndex:0]];    
    [self presentViewController:controller animated:YES completion:nil];

Then in this controller I want to make it transparent on the top. I tried:

在这个控制器中，我想让它在顶部透明。我试着:

-(void)viewDidLoad{
    [super viewDidLoad];
    [self performSelector:@selector(test) withObject:nil afterDelay:3];

}

-(void)test{
    self.tableView.backgroundColor = [UIColor clearColor];
    self.tableView.opaque = NO;
    self.tableView.backgroundView = nil;
}

The background was cleaned but controller is not transparent and I can not see previous controller? How can I fix this?

后台被清理，但控制器不透明，我看不到以前的控制器?我该怎么解决这个问题呢?

3 个解决方案

#1

Make the tableview cells background color also to clear color.

使表格视图单元格的背景颜色也要清晰。

#2

Try this.

试试这个。

self.view.backgroundColor = [UIColor clearColor];

#3

I think that if you want to see your previous View Controller, you want to not present a new view controller, but rather, put a new UIView on top of your View Controller. View Controllers can't be transparent or not, but views can. Give it a try:

我认为，如果你想看到之前的视图控制器，你不想显示一个新的视图控制器，而是，在你的视图控制器上面放一个新的UIView。视图控制器不能是透明的或不透明的，但是视图可以。试一试:

ShareResourceItemViewController* controller = [[ShareResourceItemViewController alloc] initWithSharedResourceItem:[selectedItems objectAtIndex:0]];
[self.view addSubview:controller.view];

#1