iOS -点击按钮查看大图，再次点击还原效果(此处以UITableViewCell为父视图，其中加载多个图片为例)
#import "xxxCell.h"
#import
staticCGRect oldframe;//用于记录放大之前的frame
@implementation xxxCell
- (void)awakeFromNib {
}
//1.给cell赋值
-(void)reDrawInfoContentView:(xxxModel*)model{
CGRect aRect, bRect, bounds = CGRectMake(10, height + 25, self.contentView.bounds.size.width,10000000);
NSInteger rows = model.pictures.count%3==0?model.pictures.count/3:model.pictures.count/3+1;
for (int i =0; i
CGRectDivide(bounds, &aRect, &bounds, 90, CGRectMinYEdge);
for (int m =0; m<3; m++) {
NSInteger index = i * 3 + m;
if (index >= model.pictures.count) {
return;
}
CGRectDivide(aRect, &bRect, &aRect, bounds.size.width/3,CGRectMinXEdge);
UploadFileDto *fileDto = [model.picturesobjectAtIndex:index];
UIButton *button = [UIButtonbuttonWithType:UIButtonTypeCustom];
button.frame = bRect;
[buttonsd_setImageWithURL:[NSURLURLWithString:fileDto.url]forState:UIControlStateNormal];
[button addTarget:selfaction:@selector(showImage:)forControlEvents:UIControlEventTouchUpInside];
[self.contentViewaddSubview:button];
}
}
}
//2.放大图片
-(void)showImage:(UIButton *)button{
UIWindow *window=[UIApplicationsharedApplication].keyWindow;
UIView *backgroundView=[[UIViewalloc]initWithFrame:CGRectMake(0,0, [UIScreenmainScreen].bounds.size.width, [UIScreenmainScreen].bounds.size.height)];
oldframe=[button convertRect:button.boundstoView:self.contentView];
backgroundView.backgroundColor=[UIColorblackColor];
backgroundView.alpha=0;
button.tag=1;
[backgroundViewaddSubview:button];
[windowaddSubview:backgroundView];
UITapGestureRecognizer *tap=[[UITapGestureRecognizeralloc]initWithTarget:selfaction:@selector(hideImage:)];
[backgroundViewaddGestureRecognizer:tap];
[UIViewanimateWithDuration:0.3animations:^{
button.frame=CGRectMake(0,([UIScreenmainScreen].bounds.size.height-(button.frame.size.height*[UIScreenmainScreen].bounds.size.width/button.frame.size.width+80))/2, [UIScreen mainScreen].bounds.size.width, button.frame.size.height*[UIScreenmainScreen].bounds.size.width/button.frame.size.width+80);
backgroundView.alpha=1;
}completion:^(BOOL finished) {
button.userInteractionEnabled=NO;
}];
}
//3.还原图片
-(void)hideImage:(UITapGestureRecognizer*)tap{
UIView *backgroundView=tap.view;
UIButton *button=(UIButton *)[tap.viewviewWithTag:1];
[UIViewanimateWithDuration:0.3animations:^{
button.frame=oldframe;
backgroundView.alpha=0;
}completion:^(BOOL finished) {
[backgroundViewremoveFromSuperview];
[self.contentViewaddSubview:button];
button.userInteractionEnabled=YES;
}];
}
@end