erpsuiteios/RA Image/BasicViewController.m

//
//  BasicViewController.m
//  RA Image
//
//  Created by Jack on 2017/4/27.
//  Copyright © 2017年 USAI. All rights reserved.
//

#import "BasicViewController.h"

NSString *const LogoutNotification = @"LogouNotification";

@interface BasicViewController ()

@property (nonatomic,strong) JLKeyboardListener *keyboardListener;
@property (nonatomic,assign) CGFloat translateY;
@property (nonatomic,strong) UITapGestureRecognizer *firstResponderTap;

@end

@implementation BasicViewController

- (NSNotificationCenter *)notificationCenter {
    return [NSNotificationCenter defaultCenter];
}

- (void)dealloc {
    [self.notificationCenter removeObserver:self];
}

- (void)registNofitication {
    [self.notificationCenter addObserver:self selector:@selector(userLogout:) name:LogoutNotification object:nil];
}

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
   
    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapResignFirstResponder:)];
    [self.view addGestureRecognizer:tap];
    self.firstResponderTap = tap;
}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    [self startListenKeyboard];
}

- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
    if (self.currentFirstResponder) {
        [self tapResignFirstResponder:nil];
    }
    [self stopListenKeyboard];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (id)userDefaultsValue:(NSString *)key {
    
    return [[NSUserDefaults standardUserDefaults] valueForKey:key];
    
}

- (void)setUserDefaultsValue:(id)value forKey:(NSString *)key {
    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
    [userDefaults setValue:value forKey:key];
    [userDefaults synchronize];
}

- (void)userLogout:(NSNotification *)notification {
    if (self.presentedViewController) {
        [self dismissViewControllerAnimated:NO completion:nil];
        return;
    }
    if (self.navigationController) {
        [self.navigationController popToRootViewControllerAnimated:NO];
    }
}

- (UIViewController *)viewControllerInStoryboard:(NSString *)storyboard withId:(NSString *)storyboardId {
    return [[UIStoryboard storyboardWithName:storyboard bundle:nil] instantiateViewControllerWithIdentifier:storyboardId];
}


#pragma mark - First Responder

- (void)tapResignFirstResponder:(UITapGestureRecognizer *)tap {
    if (self.currentFirstResponder) {
        [self.currentFirstResponder resignFirstResponder];
        self.currentFirstResponder = nil;
        self.translateY = 0;
    } else {
        [self.view endEditing:YES];
    }
}

- (void)removeFirstResponderTap {
    if (self.firstResponderTap) {
        [self.view removeGestureRecognizer:self.firstResponderTap];
        self.firstResponderTap = nil;
    }
}

#pragma mark - Keyboard Listener

- (void)registListenKeyboard {
    self.keyboardListener = [[JLKeyboardListener alloc] init];
    self.keyboardListener.delegate = self;
}

- (void)startListenKeyboard {
    if (self.keyboardListener) {
        [self.keyboardListener startListen];
    }
}

- (void)stopListenKeyboard {
    if (self.keyboardListener) {
        [self.keyboardListener stopListen];
    }
}

#pragma mark - KeyboardListener Delegate

- (void)keyboardWillShowHeight:(CGFloat)height withDuration:(NSTimeInterval)duration {
    if (!self.currentFirstResponder) {
        return;
    }
    CGFloat y = CGRectGetMaxY(self.currentFirstResponder.frame);
    CGFloat maxH = CGRectGetMaxY(self.view.frame);
    if (maxH - height < y) {
        self.translateY = maxH - height - y;
        
        CGAffineTransform transform = self.view.transform;
        transform = CGAffineTransformTranslate(transform, 0, self.translateY);
        self.view.transform = transform;
    }
    
}

- (void)keyboardWillHideHeight:(CGFloat)height withDuration:(NSTimeInterval)duration {
    self.view.transform = CGAffineTransformIdentity;
}

- (void)keyboardWillChangeHeight:(CGFloat)height offset:(CGFloat)heightOffset withDuration:(NSTimeInterval)duration {
    if (!self.currentFirstResponder) {
        return;
    }
    self.view.transform = CGAffineTransformIdentity;
    CGRect frame = [self.view convertRect:self.currentFirstResponder.frame fromView:self.currentFirstResponder.superview];
    CGFloat y = CGRectGetMaxY(frame);
    CGFloat maxH = CGRectGetMaxY(self.view.frame);
    if (maxH - height < y) {
        self.translateY = maxH - height - y;
        CGAffineTransform transform = self.view.transform;
        transform = CGAffineTransformTranslate(transform, 0, self.translateY);
        self.view.transform = transform;
    }
    
}



@end