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BMLoadingView.m
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BMLoadingView.m
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//
// BMLoadingView.m
//
// Created by Jeronimo Valli on 4/27/13.
//
#import "BMLoadingView.h"
static BMLoadingView *_instance = nil;
@interface BMLoadingView ()
@property (nonatomic, retain) UIView *viewBackground;
@property (nonatomic, retain) UIActivityIndicatorView *activityIndicator;
- (id)initWithFrame:(CGRect)aRect;
@end
@implementation BMLoadingView
@synthesize viewBackground = _viewBackground;
@synthesize activityIndicator = _activityIndicator;
@synthesize view = _view;
#pragma mark - NSObject
- (void)dealloc
{
[_viewBackground release];
[_activityIndicator release];
[_view release];
[super dealloc];
}
- (id)initWithFrame:(CGRect)aRect
{
self = [super init];
if (self) {
_view = [[UIView alloc] initWithFrame:aRect];
[_view setBackgroundColor:[UIColor clearColor]];
_viewBackground = [[UIView alloc] initWithFrame:self.view.frame];
[_viewBackground setBackgroundColor:[UIColor blackColor]];
[_viewBackground setAlpha:0.4];
_activityIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
CGRect newRect = _activityIndicator.frame;
newRect.origin.x = (int)((aRect.size.width - _activityIndicator.frame.size.width) / 2);
newRect.origin.y = (int)((aRect.size.height - _activityIndicator.frame.size.height) / 2);
[_activityIndicator setFrame:newRect];
[_activityIndicator setHidden:NO];
[_activityIndicator startAnimating];
[_view addSubview:_viewBackground];
[_view addSubview:_activityIndicator];
}
return self;
}
#pragma mark - Singletion
+ (BOOL)initializeSingletonInstanceForWindow:(UIWindow*)window
{
if (_instance == nil) {
_instance = [[BMLoadingView alloc] initWithFrame:window.frame];
if (_instance == nil) {
return NO;
} else {
return YES;
}
} else {
return YES;
}
}
+ (BMLoadingView*)sharedInstance
{
NSAssert(_instance != nil, @"You have to call initializeSingletonInstanceForWindow:window first!");
return _instance;
}
+ (id)allocWithZone:(NSZone*)zone
{
@synchronized(self) {
if (_instance != nil) {
return [_instance retain];
} else {
return [super allocWithZone:zone];
}
}
}
- (id)copyWithZone:(NSZone*)zone
{
return self;
}
- (id)retain
{
return self;
}
- (unsigned)retainCount
{
return UINT_MAX;
}
- (oneway void)release
{
//do nothing
}
- (id)autorelease
{
return self;
}
@end