xtfei2011
67 lines
1.6 KiB
Objective-C
Executable File
67 lines
1.6 KiB
Objective-C
Executable File
//
|
|
// TYDrawViewStorage.m
|
|
// TYAttributedLabelDemo
|
|
//
|
|
// Created by tanyang on 15/4/9.
|
|
// Copyright (c) 2015年 tanyang. All rights reserved.
|
|
//
|
|
|
|
#import "TYViewStorage.h"
|
|
|
|
@interface TYViewStorage ()
|
|
@property (nonatomic, weak) UIView *superView;
|
|
@end
|
|
|
|
@implementation TYViewStorage
|
|
|
|
#pragma mark - protocol
|
|
|
|
- (void)setView:(UIView *)view
|
|
{
|
|
_view = view;
|
|
|
|
if (CGSizeEqualToSize(self.size, CGSizeZero)) {
|
|
if ([NSThread isMainThread]) {
|
|
self.size = view.frame.size;
|
|
} else {
|
|
dispatch_semaphore_t signal = dispatch_semaphore_create(0);
|
|
dispatch_sync(dispatch_get_main_queue(), ^{
|
|
self.size = view.frame.size;
|
|
dispatch_semaphore_signal(signal);
|
|
});
|
|
dispatch_semaphore_wait(signal, DISPATCH_TIME_FOREVER);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
- (void)setOwnerView:(UIView *)ownerView
|
|
{
|
|
if (_view.superview) {
|
|
[_view removeFromSuperview];
|
|
}
|
|
|
|
_superView = ownerView;
|
|
}
|
|
|
|
- (void)didNotDrawRun
|
|
{
|
|
[_view removeFromSuperview];
|
|
}
|
|
|
|
- (void)drawStorageWithRect:(CGRect)rect
|
|
{
|
|
if (_view == nil || _superView == nil) return;
|
|
// 设置frame 注意 转换rect CoreText context coordinates are the opposite to UIKit so we flip the bounds
|
|
CGAffineTransform transform = CGAffineTransformScale(CGAffineTransformMakeTranslation(0, _superView.bounds.size.height), 1.f, -1.f);
|
|
rect = CGRectApplyAffineTransform(rect, transform);
|
|
[_view setFrame:rect];
|
|
[_superView addSubview:_view];
|
|
}
|
|
|
|
- (void)dealloc {
|
|
[self.view performSelectorOnMainThread:@selector(removeFromSuperview) withObject:nil waitUntilDone:[NSThread isMainThread]];
|
|
}
|
|
|
|
@end
|