//// AuthcodeView.h// BSbracelet//// Created by Christopher on 17/5/16.// Copyright ©
2017年 ZTracy. All rights reserved.//#import <UIKit/UIKit.h>@interface AuthcodeView : UIView@property (strong, nonatomic) NSArray *dataArray;
//字符素材数组@property (strong, nonatomic) NSMutableString *authCodeStr;
//验证码字符串@end//// AuthcodeView.m// BSbracelet//// Created by Christopher on 17/5/16.// Copyright ©
2017年 ZTracy. All rights reserved.//#import "AuthcodeView.h"#define kRandomColor [UIColor colorWithRed:arc4random() % 256 / 256.0 green:arc4random() % 256 / 256.0 blue:arc4random() % 256 / 256.0 alpha:1.0];
#define kLineCount 6#define kLineWidth 1.0#define kCharCount 4#define kFontSize [UIFont systemFontOfSize:arc4random() % 5 + 15]@implementation AuthcodeView/*// Only override drawRect: if you perform custom drawing.// An empty implementation adversely affects performance during animation.- (void)drawRect:(CGRect)rect {
// Drawing code}
*/- (instancetype)initWithFrame:(CGRect)frame{
self = [super initWithFrame:frame];
if (self) {
self.layer.cornerRadius = 5.0f;
self.layer.masksToBounds = YES;
self.backgroundColor = kRandomColor;
[self getAuthcode];
//获得随机验证码 }
return self;
}
#pragma mark 获得随机验证码- (void)getAuthcode{
//字符串素材 _dataArray = [[NSArray alloc] initWithObjects:@"0",@"1",@"2",@"3",@"4",@"5",@"6",@"7",@"8",@"9",@"A",@"B",@"C",@"D",@"E",@"F",@"G",@"H",@"I",@"J",@"K",@"L",@"M",@"N",@"O",@"P",@"Q",@"R",@"S",@"T",@"U",@"V",@"W",@"X",@"Y",@"Z",@"a",@"b",@"c",@"d",@"e",@"f",@"g",@"h",@"i",@"j",@"k",@"l",@"m",@"n",@"o",@"p",@"q",@"r",@"s",@"t",@"u",@"v",@"w",@"x",@"y",@"z",nil];
_authCodeStr = [[NSMutableString alloc] initWithCapacity:kCharCount];
//随机从数组中选取需要个数的字符串，拼接为验证码字符串 for (int i = 0;
i < kCharCount;
i++) {
NSInteger index = arc4random() % (_dataArray.count-1);
NSString *tempStr = [_dataArray objectAtIndex:index];
_authCodeStr = (NSMutableString *)[_authCodeStr stringByAppendingString:tempStr];
}
}
#pragma mark 点击界面切换验证码- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
[self getAuthcode];
//setNeedsDisplay调用drawRect方法来实现view的绘制 [self setNeedsDisplay];
}
- (void)drawRect:(CGRect)rect{
[super drawRect:rect];
//设置随机背景颜色 self.backgroundColor = kRandomColor;
//根据要显示的验证码字符串，根据长度，计算每个字符串显示的位置 NSString *text = [NSString stringWithFormat:@"%@",_authCodeStr];
CGSize cSize = [@"A" sizeWithAttributes:@{
NSFontAttributeName:[UIFont systemFontOfSize:20]}
];
int width = rect.size.width/text.length - cSize.width;
int height = rect.size.height - cSize.height;
CGPoint point;
//依次绘制每一个字符,可以设置显示的每个字符的字体大小、颜色、样式等 float pX,pY;
for ( int i = 0;
i<text.length;
i++) {
pX = arc4random() % width + rect.size.width/text.length * i;
pY = arc4random() % height;
point = CGPointMake(pX, pY);
unichar c = [text characterAtIndex:i];
NSString *textC = [NSString stringWithFormat:@"%C", c];
[textC drawAtPoint:point withAttributes:@{
NSFontAttributeName:kFontSize}
];
}
//调用drawRect：之前，系统会向栈中压入一个CGContextRef，调用UIGraphicsGetCurrentContext()会取栈顶的CGContextRef CGContextRef context = UIGraphicsGetCurrentContext();
//设置线条宽度 CGContextSetLineWidth(context, kLineWidth);
//绘制干扰线 for (int i = 0;
i < kLineCount;
i++) {
UIColor *color = kRandomColor;
CGContextSetStrokeColorWithColor(context, color.CGColor);
//设置线条填充色 //设置线的起点 pX = arc4random() % (int)rect.size.width;
pY = arc4random() % (int)rect.size.height;
CGContextMoveToPoint(context, pX, pY);
//设置线终点 pX = arc4random() % (int)rect.size.width;
pY = arc4random() % (int)rect.size.height;
CGContextAddLineToPoint(context, pX, pY);
//画线 CGContextStrokePath(context);
}
}
@end使用-(void)recordBtnClick:(UIButton *)recordBtn{
DomodelView = [[UIView alloc]initWithFrame:CGRectMake(0,0,kScreenWidth,kScreenHeight)];
DomodelView.backgroundColor = [UIColor colorWithRed:0.3 green:0.3 blue:0.3 alpha:0.6];
authBgview = [[UIView alloc]initWithFrame:CGRectMake(30, 120, self.view.frame.size.width-60, 220)];
authBgview.backgroundColor = [UIColor whiteColor];
//显示验证码界面 authBgview.layer.cornerRadius = 8;
authBgview.layer.masksToBounds = YES;
authCodeView = [[AuthcodeView alloc] initWithFrame:CGRectMake(10, 10, kScreenWidth-80, 45)];
[authBgview addSubview:authCodeView];
//提示文字 UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(10, 65, kScreenWidth-80, 40)];
label.text = @"点击图片换验证码";
label.font = [UIFont systemFontOfSize:15];
label.textColor = [UIColor grayColor];
[authBgview addSubview:label];
//添加输入框 _input = [[UITextField alloc] initWithFrame:CGRectMake(10, 120, kScreenWidth-80, 40)];
_input.layer.borderColor = [UIColor lightGrayColor].CGColor;
_input.layer.borderWidth = 2.0;
_input.layer.cornerRadius = 5.0;
_input.font = [UIFont systemFontOfSize:21];
_input.placeholder = @"请输入验证码!";
_input.clearButtonMode = UITextFieldViewModeWhileEditing;
_input.backgroundColor = [UIColor clearColor];
_input.textAlignment = NSTextAlignmentCenter;
_input.returnKeyType = UIReturnKeyDone;
_input.delegate = self;
[authBgview addSubview:_input];
UIButton *closeBtn = [[UIButton alloc] initWithFrame:CGRectMake(10,170, kScreenWidth-80, 40)];
[closeBtn addTarget:self action:@selector(removeview) forControlEvents:UIControlEventTouchUpInside];
closeBtn.backgroundColor = RGBCOLOR(34,151,216);
[closeBtn setTitle: @"关闭" forState: UIControlStateNormal];
[authBgview addSubview:closeBtn];
[DomodelView addSubview:authBgview];
[self.view addSubview:DomodelView];
// InvoiceRecordViewController *InvoiceRecordVc = [[InvoiceRecordViewController alloc] initWithNibName:@"InvoiceRecordViewController" bundle:nil];
// [self.navigationController pushViewController:InvoiceRecordVc animated:YES];
}
#pragma mark 输入框代理，点击return 按钮- (BOOL)textFieldShouldReturn:(UITextField *)textField{
//判断输入的是否为验证图片中显示的验证码 if([_input.text compare:authCodeView.authCodeStr options:NSCaseInsensitiveSearch |NSNumericSearch] ==NSOrderedSame) {
//正确弹出警告款提示正确 // UIAlertView *alview = [[UIAlertView alloc] initWithTitle:@"恭喜您 ^o^" message:@"验证成功" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
// [alview show];
[DomodelView removeFromSuperview];
InvoiceRecordViewController *InvoiceRecordVc = [[InvoiceRecordViewController alloc] initWithNibName:@"InvoiceRecordViewController" bundle:nil];
[self.navigationController pushViewController:InvoiceRecordVc animated:YES];
}
else {
//验证不匹配，验证码和输入框抖动 CAKeyframeAnimation *anim = [CAKeyframeAnimation animationWithKeyPath:@"transform.translation.x"];
anim.repeatCount = 1;
anim.values = @[@-20,@20,@-20];
// [authCodeView.layer addAnimation:anim forKey:nil];
[_input.layer addAnimation:anim forKey:nil];
}
return YES;
}