HaiwaiAdv1/NatureSDK/XenonSDK/Classes/BasePhoneViewController.m

//
//  BasePhoneViewController.m
//  XenonSDK
//
//  Created by SAGESSE on 2019/5/29.
//  Copyright © 2019 SAGESSE. All rights reserved.
//

#import "XenonSDK.h"
#import "BasePhoneViewController.h"

@interface BasePhoneViewController () <UITextFieldDelegate>

@end

@implementation BasePhoneViewController

- (void)countdown {
    
    NSInteger t = self.endTime - CACurrentMediaTime() + 0.5;
    if (t < 0) {
        self.sendButton.enabled = true;
        [self.timer invalidate];
        self.timer = nil;
        self.sendButton = nil;
        return;
    }

    [self.sendButton setTitle:[NSString stringWithFormat:@"%zd秒后重试", t]
                     forState:UIControlStateDisabled];
}

/*发送验证码**/
- (void)startCounter {
    
    // Create a timer.
    NSTimer* timer = [NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(countdown) userInfo:nil repeats:YES];
    
    self.endTime = CACurrentMediaTime() + 60;
    self.sendButton.enabled = NO;
    self.timer = timer;
    }


- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
}

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    
    if (self.sendButton != nil) {
        [self startCounter];
    }
}

- (void)viewDidDisappear:(BOOL)animated {
    [super viewDidDisappear:animated];
    
    [self.timer invalidate];
    self.timer = nil;
}

- (void)securityCodeForPrepare:(UIButton*)sender {
    // Resign editing.
    [self.view endEditing:YES];
    
    // Must enter phone.
    NSString* phone = self.phoneTextField.text;
    if (phone.length == 0) {
        [XSNetwork showHudFailure:@"请输入手机号"];
        return;
    }
    
    // Check the phone is vaild.
    if (!sdk_verifyPhone(phone)) {
        [XSNetwork showHudFailure:@"请输入正确的手机号格式"];
        return;
    }
    
    // Send SMS security code.
    [XSNetwork sendSMSWithPhone:phone type:self.smsType complete:^(id object, NSError *error) {
        if (error != nil) {
            [XSNetwork showHudFailure:error];
            return;
        }
        
        // Start typing security code.
        self.sendButton = sender;
        [self.securityCodeTextField becomeFirstResponder];
        [self startCounter];
        
        [XSNetwork showHudSuccess:@"验证码发送成功"];
    }];
}

- (void)securityCodeForVerify:(id)sender {
    // Resign editing.
    [self.view endEditing:YES];
    
    // Some thing.
}

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
    if (textField == self.phoneTextField && [string hasPrefix:@"+"]) {
        id str = [string stringByTrimmingCharactersInSet:NSCharacterSet.decimalDigitCharacterSet.invertedSet];
        textField.text = [str substringFromIndex:11];
        return NO;
    }
    return YES;
}

- (BOOL)textFieldShouldReturn:(UITextField *)textField {
    
    if (textField.returnKeyType == UIReturnKeyDone) {
        if (textField == self.securityCodeTextField) {
            [self securityCodeForVerify:textField];
        }
        return false;
    }
    
    if (textField == self.phoneTextField) {
        [self.securityCodeTextField becomeFirstResponder];
    }
    
    return YES;
}

@end