Does it make sense to add ATMHud to tabBarController.view - objective-c

Question

When i try to add ATMHud to uitableviewcontroller subview it does work but it doesn't disable the scrolling and if the tableview is not on top i can't see the hud view. What i did was added to teh tabBarController.view that works but i want find out if this is a good idea or later on i might have issues with it.
Another question is tabBarController.view frame is that the whole screen or just the bottom part. How come atmhud shows in the middle of the screen?
Thanks in advance!
Yan
============
Found a blog post that shows how to reset self.view and add tableview separately in uitableviewcontroller
UITableViewController and fixed sub views
- (void)viewDidLoad {
[super viewDidLoad];
if (!tableView &&
[self.view isKindOfClass:[UITableView class]]) {
tableView = (UITableView *)self.view;
}
self.view = [[[UIView alloc] initWithFrame:
[UIScreen mainScreen].applicationFrame] autorelease];
self.tableView.frame = self.view.bounds;
self.tableView.contentInset = UIEdgeInsetsMake(44.0, 0.0, 0.0, 0.0);
[self.view addSubview:self.tableView];
UIView *fixedBar = [[UIView alloc] initWithFrame:
CGRectMake(0.0, 0.0, self.view.bounds.size.width, 44.0)];
fixedBar.backgroundColor = [UIColor colorWithRed:
0.0 green:1.0 blue:0.0 alpha:0.7];
[self.view addSubview:fixedBar];
[fixedBar release];
}
After this when add hud to self.view you will be able to disable the tableview on the bottom.
Let me know if this a good way to setup the tableview

Answer 1

The problem with using the tab bar is that the hud is now modal, and the user cannot change the tab.
It sounds like the tableview is not your primary viewm, as it can get "covered up". If its not the primary view, then add the ATMHud to self.view. If the tableView is the same as self.view, then add a new transparent view to it, then add the HUD to that view.
The tabBarController.view is the view that hosts the tabbed views - if you want to see its size (or frame) log it using NSStringFromCGRect(self.tabBarController.frame);
EDIT: I just did a test, the ATMHud DOES block the UI. All I can think of is that you have not inserted it where you need to (at the top of current view's subviews.) I have a demo project where I do this:
hud = [[ATMHud alloc] initWithDelegate:self];
[self.view addSubview:hud.view];
[hud setCaption:#"Howdie"];
[hud setActivity:YES];
[hud show];
[hud hideAfter:5];
A button under the hud is not active - in fact nothing in the view is active (probably the Nav Bar would be live though)
If you want an ARCified and field tested version, you can grab it here
EDIT2: The solution to your problem is below. Note that ATMHud blocks clicks from getting to the table, and the code below stops the scrolling:
- (void)hudWillAppear:(ATMHud *)_hud
{
self.tableView.scrollEnabled = NO;
}
- (void)hudDidDisappear:(ATMHud *)_hud
{
self.tableView.scrollEnabled = YES;
}
Dump the views:
#import <QuartzCore/QuartzCore.h>
#import "UIView+Utilities.h"
#interface UIView (Utilities_Private)
+ (void)appendView:(UIView *)v toStr:(NSMutableString *)str;
#end
#implementation UIView (Utilities_Private)
+ (void)appendView:(UIView *)a toStr:(NSMutableString *)str
{
[str appendFormat:#" %#: frame=%# bounds=%# layerFrame=%# tag=%d userInteraction=%d alpha=%f hidden=%d\n",
NSStringFromClass([a class]),
NSStringFromCGRect(a.frame),
NSStringFromCGRect(a.bounds),
NSStringFromCGRect(a.layer.frame),
a.tag,
a.userInteractionEnabled,
a.alpha,
a.isHidden
];
}
#end
#implementation UIView (Utilities)
+ (void)dumpSuperviews:(UIView *)v msg:(NSString *)msg
{
NSMutableString *str = [NSMutableString stringWithCapacity:256];
while(v) {
[self appendView:v toStr:str];
v = v.superview;
}
[str appendString:#"\n"];
NSLog(#"%#:\n%#", msg, str);
}
+ (void)dumpSubviews:(UIView *)v msg:(NSString *)msg
{
NSMutableString *str = [NSMutableString stringWithCapacity:256];
if(v) [self appendView:v toStr:str];
for(UIView *a in v.subviews) {
[self appendView:a toStr:str];
}
[str appendString:#"\n"];
NSLog(#"%#:\n%#", msg, str);
}
#end