UIActivityIndicatorView : WaitView implementation

Header file --------------------------------------------------

//

//  WaitView.h

//  UIActivityIndicatorView

//

//  Created by Lin, Justin on 2011/3/22.

//  Copyright 2011 __MyCompanyName__. All rights reserved.

//

#import

@interface WaitView : NSObject {

UIActivityIndicatorView *activityIndicator;

}

-(void) endWait;

- (void) beginWait;

@end

Source file --------------------------------------------------

//

//  WaitView.m

//  UIActivityIndicatorView

//

//  Created by Lin, Justin on 2011/3/22.

//  Copyright 2011 __MyCompanyName__. All rights reserved.

//

#import "WaitView.h"

@interface WaitView(PrivateMethods)

- (UIView *) mainWindow;

- (void) startWaitAnimation;

- (void) stopWaitAnimation;

@end

@implementation WaitView

- (UIView *) mainWindow {

return [[[UIApplication sharedApplication] windows] objectAtIndex:0];

}

- (void) startWaitAnimation {

if (activityIndicator != nil) {

return;

}

activityIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];

[activityIndicator setFrame:CGRectMake(135, 125, 24, 24)];

[activityIndicator setHidesWhenStopped:YES];

[[self mainWindow] addSubview:activityIndicator];

[activityIndicator startAnimating];

}

- (void) stopWaitAnimation {

if (activityIndicator == nil) {

return;

}

[activityIndicator stopAnimating];

[activityIndicator removeFromSuperview];

activityIndicator = nil;

}

-(void) endWait {

// stop thread

    [NSThread detachNewThreadSelector: @selector(stopWaitAnimation) toTarget:self withObject:nil];

}

- (void) beginWait {

// start thread

    [NSThread detachNewThreadSelector: @selector(startWaitAnimation) toTarget:self withObject:nil];

}

@end