Я хочу показать размытый фон в своем приложении, когда нажимаю кнопку "Показать вид". Я могу сделать размытие фона, но это не на весь экран. он отображается под панелью вкладок и панелью навигации.
Это мой экран входа в систему и то, что я хочу (SCLAlertView)
Но мы не можем добавить пользовательский вид в эту библиотеку. Итак, я хочу создать собственный вид и добавить индикатор выполнения в этот вид.
@property (nonatomic, strong) UIView *ContentView;
@property (nonatomic, strong) UIImageView *BgView;
_BgView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0,[[UIScreen mainScreen] applicationFrame].size.width,[[UIScreen mainScreen] applicationFrame].size.height)];
[_BgView setBackgroundColor:[UIColor blackColor]];
_BgView.userInteractionEnabled = YES;
_BgView.alpha = 1.0;
_BgView.tag=7001;
_ContentView = [[UIView alloc] init];
_ContentView.tag=7002;
[self.view addSubview:_ContentView];
_ContentView.backgroundColor = [UIColor whiteColor];
_ContentView.layer.cornerRadius = 2.0f;
_ContentView.layer.masksToBounds = YES;
_ContentView.layer.borderWidth = 0.5f;
когда я нажимаю кнопку, он вызывает этот метод
-(void)BlurBg{
float width = self.view.frame.size.width-20;
float height= 120.0;
float x = (self.view.frame.size.width-width)/2;
float y = (self.view.frame.size.height-height)/2;
_ContentView.frame = CGRectMake(x, y, width, height);
UIButton *OkBtn = [[UIButton alloc] initWithFrame:CGRectMake((_ContentView.frame.size.width-(_IcerikView.frame.size.width/3))/2, ((_ContentView.frame.size.height-20)/3)*2, _ContentView.frame.size.width/3, 40)];
OkBtn.backgroundColor=[UIColor greenColor];
[OkBtn setTitle:@"OK" forState:UIControlStateNormal];
OkBtn.layer.cornerRadius = 1;
OkBtn.clipsToBounds = YES;
[OkBtn addTarget:self action:@selector(Sonuc) forControlEvents:UIControlEventTouchUpInside];
[_ContentView addSubview:OkBtn];
[self.view addSubview:_BgView];
[self.view addSubview:_ContentView];
}
-(void) Sonuc{
[[self.view viewWithTag:7001] removeFromSuperview];
[[self.view viewWithTag:7002] removeFromSuperview];
}
Ответ 1 · рейтинг -2 · delavega66
Я думаю, вы можете использовать FXBlurView. Это полезная библиотека. После импорта этой библиотеки вы можете добавить новый вид (или вы можете создать его динамически). Тип класса Viewcontroller должен быть FXBlurView. Вы можете найти небольшой пример ниже.
@property (nonatomic, weak) IBOutlet FXBlurView *blurView;
...
self.blurView.blurRadius = 40; // you can set 0 to 100
Изменить:
Если вы не хотите использовать библиотеку, вам нужно создать собственное размытие фона. Я скопировал ваш код и отредактировал его. вы можете найти его ниже.
BlurBG.h:
#import <UIKit/UIKit.h>
@interface BlurBG : UIViewController
- (void)showAlert:(UIViewController *)vc;
- (void) ProgressUpdate ;
@end
BlurBG.m:
#import "BlurBG.h"
#import "UIImage+ImageEffects.h"
#import <AVFoundation/AVFoundation.h>
#define UIColorFromRGB(rgbValue) [UIColor \
colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 \
green:((float)((rgbValue & 0xFF00) >> 8))/255.0 \
blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]
#define SYSTEM_VERSION_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedSame)
#define SYSTEM_VERSION_GREATER_THAN(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedDescending)
#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedDescending)
#define KEYBOARD_HEIGHT 80
#define PREDICTION_BAR_HEIGHT 40
@interface BlurBG ()
@property (nonatomic, strong) UIImageView *backgroundView;
@property (nonatomic, strong) UIView *contentView;
@property (nonatomic, strong) UIButton *OkBtn;
@property UIProgressView *prog;
@property (nonatomic) CGFloat backgroundOpacity;
@property UILabel *labelTitle;
@property UITextView *viewText;
@end
@implementation BlurBG
CGFloat kWindowWidth;
CGFloat kWindowHeight;
CGFloat kTextHeight;
CGFloat kSubTitleHeight;
#pragma mark - Initialization
- (id)initWithCoder:(NSCoder *)aDecoder
{
@throw [NSException exceptionWithName:NSInternalInconsistencyException
reason:@"NSCoding not supported"
userInfo:nil];
}
-(instancetype) init{
self = [super init];
if (self)
{
kWindowWidth = [UIScreen mainScreen].bounds.size.width-50;
kWindowHeight = ([UIScreen mainScreen].bounds.size.height/5);
_OkBtn = [[UIButton alloc] initWithFrame:CGRectMake(kWindowWidth-25,5,20,20)];
_OkBtn.backgroundColor=[UIColor grayColor];
[_OkBtn setTitle:@"X" forState:UIControlStateNormal];
_OkBtn.layer.cornerRadius = 1;
_OkBtn.clipsToBounds = YES;
[_OkBtn addTarget:self action:@selector(fadeOut) forControlEvents:UIControlEventTouchUpInside];
_prog = [[UIProgressView alloc] initWithProgressViewStyle:UIProgressViewStyleDefault];
_labelTitle = [[UILabel alloc] init];
_viewText = [[UITextView alloc] init];
_contentView = [[UIView alloc] init];
[self.view addSubview:_contentView];
[_contentView addSubview:_labelTitle];
[_contentView addSubview:_viewText];
[_contentView addSubview:_prog];
[_contentView addSubview:_OkBtn];
// Content View
_contentView.layer.cornerRadius = 5.0f;
_contentView.layer.masksToBounds = YES;
_contentView.layer.borderWidth = 0.5f;
_labelTitle.numberOfLines = 1;
_labelTitle.textAlignment = NSTextAlignmentCenter;
_labelTitle.font = [UIFont fontWithName:@"HelveticaNeue" size:20.0f];
// View text
_viewText.editable = NO;
_viewText.allowsEditingTextAttributes = YES;
_viewText.textAlignment = NSTextAlignmentCenter;
_viewText.font = [UIFont fontWithName:@"HelveticaNeue" size:14.0f];
_backgroundView = [[UIImageView alloc]initWithFrame:[UIScreen mainScreen].bounds];
_backgroundView.userInteractionEnabled = YES;
_contentView.backgroundColor = [UIColor whiteColor];
_labelTitle.textColor = UIColorFromRGB(0x4D4D4D);
_viewText.textColor = UIColorFromRGB(0x4D4D4D);
_contentView.layer.borderColor = UIColorFromRGB(0xCCCCCC).CGColor;
}
return self;
}
-(void) ShowTitle:(UIViewController *)vc{
UIWindow *window = [[UIApplication sharedApplication] keyWindow];
self.view.alpha = 0;
[self makeBlurBackground];
_backgroundView.frame = vc.view.bounds;
_labelTitle.text = @"Title";
_viewText.text = @"Description..";
[window addSubview:_backgroundView];
[window addSubview:self.view];
[vc addChildViewController:self];
[self fadeIn];
}
- (void)showAlert:(UIViewController *)vc {
[self ShowTitle:vc];
}
-(void)viewWillLayoutSubviews
{
[super viewWillLayoutSubviews];
CGSize sz = [UIScreen mainScreen].bounds.size;
if (SYSTEM_VERSION_LESS_THAN(@"8.0"))
{
if UIInterfaceOrientationIsLandscape([[UIApplication sharedApplication] statusBarOrientation])
{
CGSize ssz = sz;
sz = CGSizeMake(ssz.height, ssz.width);
}
}
CGRect newFrame = self.backgroundView.frame;
newFrame.size = sz;
self.backgroundView.frame = newFrame;
CGRect r;
if (self.view.superview != nil)
{
r = CGRectMake((sz.width-kWindowWidth)/2, (sz.height-kWindowHeight)/2, kWindowWidth, kWindowHeight/2);
}
else
{
r = CGRectMake((sz.width-kWindowWidth)/2, -kWindowHeight, kWindowWidth, kWindowHeight);
}
self.view.frame = r;
_contentView.frame = CGRectMake(0,0, kWindowWidth, kWindowHeight);
_labelTitle.frame = CGRectMake((kWindowWidth-(kWindowWidth-10))/2, 5, kWindowWidth-10,28);
_viewText.frame = CGRectMake((kWindowWidth-(kWindowWidth-10))/2, 8+(_labelTitle.frame.size.height), kWindowWidth-10,28);
_prog.frame = CGRectMake((kWindowWidth-(kWindowWidth-10))/2, 65, kWindowWidth-10,28);
}
- (void)fadeIn
{
self.backgroundView.alpha = 0.0f;
self.view.alpha = 0.0f;
[UIView animateWithDuration:0.3f
delay:0.0f
options:UIViewAnimationOptionCurveEaseIn
animations:^{
self.backgroundView.alpha = _backgroundOpacity;
self.view.alpha = 1.0f;
}
completion:^(BOOL completed){
[self performSelectorOnMainThread:@selector(ProgressUpdate) withObject:nil waitUntilDone:YES];
}];
}
- (void)fadeOut
{
[UIView animateWithDuration:0.3f animations:^{
self.backgroundView.alpha = 0.0f;
self.view.alpha = 0.0f;
} completion:^(BOOL completed) {
[self.backgroundView removeFromSuperview];
[self.view removeFromSuperview];
[self removeFromParentViewController];
}];
}
- (void)makeBlurBackground
{
UIImage *image = [UIImage convertViewToImage];
UIImage *blurSnapshotImage = [image applyBlurWithRadius:5.0f
tintColor:[UIColor colorWithWhite:0.2f
alpha:0.7f]
saturationDeltaFactor:1.8f
maskImage:nil];
_backgroundView.image = blurSnapshotImage;
_backgroundView.alpha = 0.0f;
_backgroundOpacity = 1.0f;
}
-(void) ProgressUpdate {
__weak typeof(self) weakSelf = self;
dispatch_async(dispatch_get_main_queue(), ^{
__strong typeof(weakSelf) strongSelf = weakSelf;
if (strongSelf) {
for (int i=0; i<100; i++) {
[NSThread sleepForTimeInterval:0.1];
float currentProgress = _prog.progress;
NSLog(@"%f",currentProgress);
[strongSelf.prog setProgress:currentProgress+0.01 animated:YES];
};
}
});
}
@end
Вызов BlurBG:
BlurBG *bg = [[BlurBG alloc]init];
[bg showAlert:self];
[bg ProgressUpdate];
