6D4B16D068485F541F2DCD66AD8E70AC.jpg
本地生成随机验证码
直接贴代码 -
@property (nonatomic, retain) UIView *view_b; ///图形验证
@property (nonatomic, retain) AuthcodeView *authCodeView;///图形验证
@property (nonatomic, retain) UIButton *sureBtn;
@property (nonatomic, retain) UITextField *textField_yz; ///图形验证输入框
///1.点击获取验证码按钮,加载实现图形验证码的 view
/**
* 获取验证码
*/
-(void) getverificationBtn:(UIButton *)sender
{
[self addNumYanZheng];
}
///2.图形验证码 view
-(void)addNumYanZheng
{
UIView *view_b = [[UIView alloc]init];
view_b.frame = CGRectMake(0, KStatusBarHeight, kScreenWidth, kScreenHeight - KStatusBarHeight);
view_b.backgroundColor = RgbColor(0, 0, 0, 0.5);
_view_b = view_b;
_view_b.hidden = NO;
[self.view addSubview:_view_b];
UIView *view_yz = [[UIView alloc]init];
view_yz.width = 280;
view_yz.height = 165;
view_yz.centerX = view_b.centerX;
view_yz.centerY = view_b.centerY - 66;
view_yz.layer.cornerRadius = 8;
view_yz.backgroundColor = [UIColor whiteColor];
[_view_b addSubview:view_yz];
UILabel *label_title = [[UILabel alloc]init];
label_title.text = @"请输入图形验证码";
label_title.textColor = [UIColor blackColor];
label_title.font = [UIFont systemFontOfSize:16.0];
label_title.frame = CGRectMake(0, 15, view_yz.width, 16);
label_title.textAlignment = NSTextAlignmentCenter;
[view_yz addSubview:label_title];
UIButton *refreshBtn = [[UIButton alloc]init];
refreshBtn.frame = CGRectMake(view_yz.width - 7 - 26, 7, 26, 26);
[refreshBtn setImage:[UIImage imageNamed:@"closeyam"] forState:UIControlStateNormal];
refreshBtn.backgroundColor = [UIColor clearColor];
[refreshBtn addTarget:self action:@selector(toCloseYZBtn:) forControlEvents:UIControlEventTouchUpInside];
[view_yz addSubview:refreshBtn];
UIView *view_in = [[UIView alloc]init];
view_in.width = 250;
view_in.height = 44;
view_in.x = 15;
view_in.y = 45;
view_in.layer.cornerRadius = 8;
view_in.backgroundColor = kRGBColor(245, 245, 245);
[view_yz addSubview:view_in];
UITextField *textField_yz = [[UITextField alloc]init];
textField_yz.frame = CGRectMake(15, 0, 130, 44);
textField_yz.placeholder = @"请输入图形验证码";
[textField_yz setEnabled:NO];
textField_yz.font = [UIFont systemFontOfSize:14];
textField_yz.delegate = self;
textField_yz.enabled = YES;
textField_yz.keyboardType = UIKeyboardTypeNumberPad;
textField_yz.clearsOnBeginEditing = NO;
textField_yz.clearButtonMode = UITextFieldViewModeWhileEditing;
_textField_yz = textField_yz;
[view_in addSubview:textField_yz];
//显示验证码界面
_authCodeView = [[AuthcodeView alloc] initWithFrame:CGRectMake(view_in.width - 15 - 70, 7, 70, 30)];
[view_in addSubview:_authCodeView];
_sureBtn = [[UIButton alloc]init];
_sureBtn.frame = CGRectMake(15, view_in.bottom + 15, 250, 44);
[_sureBtn setTitle:@"确定" forState:UIControlStateNormal];
_sureBtn.layer.cornerRadius = 10;
_sureBtn.titleLabel.textColor = [UIColor whiteColor];
[_sureBtn setBackgroundImage:[self imageWithColor:kRGBColor(230, 0, 1)] forState:UIControlStateNormal];
[_sureBtn setBackgroundImage:[self imageWithColor:kRGBColor(214, 0, 1)] forState:UIControlStateHighlighted];
[_sureBtn addTarget:self action:@selector(touchMakeSureYZ:) forControlEvents:UIControlEventTouchUpInside];
[view_yz addSubview:_sureBtn];
}
/**
* 关闭图形验证
*/
-(void)toCloseYZBtn:(UIButton*)sender
{
NSLog(@"关闭图形验证");
_view_b.hidden = YES;
[_textField_yz resignFirstResponder];
}
/**
* 确定图形验证
*/
-(void)touchMakeSureYZ:(UIButton*)sender
{
NSLog(@"确定图形验证");
[_textField_yz resignFirstResponder];
if ([_textField_yz.text isEqualToString:_authCodeView.authCodeStr])
{
[self loginPasswordIsWorry:@"验证成功"];
/** 延迟1秒,让按钮变灰 */
int64_t delayInSeconds = 3.0; // 延迟的时间
/*
*@parameter 1,时间参照，从此刻开始计时
*@parameter 2,延时多久，此处为秒级，还有纳秒等。10ull * NSEC_PER_MSEC
*/
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
// do something
_view_b.hidden = YES;
NSString *str = @"1";
if ([str isEqualToString:@"1"]) {
[self.codeBtn timeFailBeginFrom:60]; /// 倒计时60s
/** 延迟1秒,让按钮变灰 */
int64_t delayInSeconds = 1.0; // 延迟的时间
/*
*@parameter 1,时间参照，从此刻开始计时
*@parameter 2,延时多久，此处为秒级，还有纳秒等。10ull * NSEC_PER_MSEC
*/
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
// do something
self.codeBtn.backgroundColor = kRGBColor(145, 145, 145);
});
}else
{
[self.codeBtn timeFailBeginFrom:1]; /// 处理请求成功但是匹配不成功的情况，并不需要执行倒计时功能
}
});
}
else
{
[self loginPasswordIsWorry:@"验证码输入错误"];
//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];
[_textField_yz.layer addAnimation:anim forKey:nil];
[_authCodeView getAuthcode];
}
}
/**
* HUD 提示信息 手机号或者密码错误
*/
- (void)loginPasswordIsWorry:(NSString *)sender
{
MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.navigationController.view animated:YES];
hud.mode = MBProgressHUDModeText;
hud.bezelView.backgroundColor = [UIColor blackColor];
hud.bezelView.alpha = 0.8;
hud.label.textColor = [UIColor whiteColor];
hud.bezelView.layer.cornerRadius = 4;
hud.label.font = [UIFont systemFontOfSize:15.0];
hud.label.text = NSLocalizedString(sender, @"HUD message title");
[hud hideAnimated:YES afterDelay:3.f];
}
图形验证码
.h 文件
#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
-(void)getAuthcode;
.m 文件
#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 weight:15]
@implementation AuthcodeView
- (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",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
@end
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