62 lines
1.5 KiB
Objective-C
62 lines
1.5 KiB
Objective-C
//
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// PresentIdentityQRCodeViewController.m
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// Signal-iOS
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//
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// Created by Christine Corbett Moran on 3/30/14.
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// Copyright (c) 2014 Open Whisper Systems. All rights reserved.
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//
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#import "PresentIdentityQRCodeViewController.h"
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#import "NSData+Base64.h"
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#import "UIImage+normalizeImage.h"
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@implementation PresentIdentityQRCodeViewController
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- (void)didReceiveMemoryWarning {
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[super didReceiveMemoryWarning];
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}
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- (void) viewDidLoad {
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[super viewDidLoad];
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CIFilter *filter = [CIFilter filterWithName:@"CIQRCodeGenerator"];
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[filter setDefaults];
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[filter setValue:[[self.identityKey base64EncodedString] dataUsingEncoding:NSUTF8StringEncoding] forKey:@"inputMessage"];
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CIImage *outputImage = [filter outputImage];
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CIContext *context = [CIContext contextWithOptions:nil];
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CGImageRef cgImage = [context createCGImage:outputImage fromRect:[outputImage extent]];
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UIImage *image = [UIImage imageWithCGImage:cgImage scale:1. orientation:UIImageOrientationUp];
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// Resize without interpolating
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UIImage *resized = [image resizedWithQuality:kCGInterpolationNone rate:5.0];
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self.qrCodeView.image = resized;
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CGImageRelease(cgImage);
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}
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#pragma mark - Action
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- (IBAction)closeButtonAction:(id)sender
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{
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[UIView animateWithDuration:0.6 delay:0. options:UIViewAnimationOptionCurveEaseInOut animations:^{
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[self.view setAlpha:0];
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} completion:^(BOOL succeeded){
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[self dismissViewControllerAnimated:YES completion:nil];
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}];
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}
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@end
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