95 lines
2.3 KiB
Objective-C
95 lines
2.3 KiB
Objective-C
/*
|
|
Copyright 2011 Twitter, Inc.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this work except in compliance with the License.
|
|
You may obtain a copy of the License in the LICENSE file, or at:
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
#import "TUIActivityIndicatorView.h"
|
|
|
|
@implementation TUIActivityIndicatorView
|
|
|
|
- (id)initWithActivityIndicatorStyle:(TUIActivityIndicatorViewStyle)style
|
|
{
|
|
if((self = [super initWithFrame:CGRectMake(0, 0, 20, 20)]))
|
|
{
|
|
_activityIndicatorViewStyle = style;
|
|
|
|
spinner = [[TUIView alloc] initWithFrame:self.bounds];
|
|
spinner.backgroundColor = [NSColor blackColor];
|
|
spinner.alpha = 0.2;
|
|
spinner.layer.cornerRadius = 10.0;
|
|
[self addSubview:spinner];
|
|
}
|
|
return self;
|
|
}
|
|
|
|
- (TUIActivityIndicatorViewStyle)activityIndicatorViewStyle
|
|
{
|
|
return _activityIndicatorViewStyle;
|
|
}
|
|
|
|
- (void)startAnimating
|
|
{
|
|
if(!_animating) {
|
|
CGFloat duration = 1.0;
|
|
|
|
{
|
|
CABasicAnimation *animation = [CABasicAnimation animation];
|
|
animation.repeatCount = INT_MAX;
|
|
animation.duration = duration;
|
|
animation.fromValue = [NSValue valueWithCATransform3D:CATransform3DMakeScale(0.1, 0.1, 0.1)];
|
|
animation.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeScale(1.0, 1.0, 1.0)];
|
|
[spinner.layer addAnimation:animation forKey:@"transform"];
|
|
}
|
|
|
|
{
|
|
CAKeyframeAnimation *animation = [CAKeyframeAnimation animation];
|
|
animation.values = [NSArray arrayWithObjects:
|
|
[NSNumber numberWithFloat:0.0],
|
|
[NSNumber numberWithFloat:0.3],
|
|
[NSNumber numberWithFloat:0.0],
|
|
nil];
|
|
animation.repeatCount = INT_MAX;
|
|
animation.duration = duration;
|
|
[spinner.layer addAnimation:animation forKey:@"opacity"];
|
|
}
|
|
|
|
_animating = YES;
|
|
}
|
|
}
|
|
|
|
- (void)stopAnimating
|
|
{
|
|
if(_animating) {
|
|
[spinner.layer removeAllAnimations];
|
|
_animating = NO;
|
|
}
|
|
}
|
|
|
|
- (BOOL)isAnimating
|
|
{
|
|
return _animating;
|
|
}
|
|
|
|
- (CGSize)sizeThatFits:(CGSize)size
|
|
{
|
|
return CGSizeMake(20, 20);
|
|
}
|
|
|
|
- (void)removeAllAnimations
|
|
{
|
|
// do nothing
|
|
}
|
|
|
|
@end
|