done button is not visible in number pad iOS 9 issue

前端 未结 3 2031
栀梦
栀梦 2021-01-19 12:22

this code is working in ios 6,7,8 but this all method is called in ios 9 but it is not visible. on number pad. here is my code.

#import \"ViewController.h\"         


        
3条回答
  •  野的像风
    2021-01-19 13:12

    Okay here's a simple fix for getting 'done' button to show in an app in both iOS 9 and iOS 8 and below taylored to your question. It could be observed after running an app and viewing it via 'View's Hierarchy' (i.e. clicking on the 'View Hierarchy' icon from Debug Area header bar while app is running on device and inspecting your views in Storyboard), that the keyboard is presented on different windows in iOS 9 compared to iOS 8 and below versions and have to be accounted for.

    First we declare a global property, 'buttonDone' of type UIButton and use it in our implementation file as below:

    #import "ViewController.h"
    #define TAG_BUTTON_DONE 67125
    
    @interface ViewController ()
        @property (nonatomic, strong) UIButton *doneButton;
    @end
    
    @implementation ViewController
    
    - (void)viewDidLoad {
    [super viewDidLoad];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardDidShow:) name:UIKeyboardDidShowNotification object:nil];
    // Do any additional setup after loading the view, typically from a nib.
    }
    
    - (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
    }
    
    - (void)keyboardDidShow:(NSNotification *)note {
    [self addButtonToKeyboard];
    }
    
    - (id)addButtonToKeyboard
    {
    if (!doneButton)
    {
    // create custom button
        doneButton = [UIButton buttonWithType:UIButtonTypeCustom];
        doneButton.frame = CGRectMake(0, 163, 106, 53);
        doneButton.adjustsImageWhenHighlighted = NO;
        [doneButton setTag:TAG_BUTTON_DONE];
        //[doneButton setImage:[UIImage imageNamed:@"doneup.png"] forState:UIControlStateNormal];
        //[doneButton setImage:[UIImage imageNamed:@"donedown.png"] forState:UIControlStateHighlighted];
        [doneButton setTitle:@"Done" forState:UIControlStateNormal];
        [doneButton setTintColor:[UIColor blackColor]];  
    }
    
    NSArray *windows = [[UIApplication sharedApplication] windows];
    //Check to see if running below iOS 9,then return the second window which bears the keyboard   
    if ([[[UIDevice currentDevice] systemVersion] floatValue] < 9.0) {
        return windows[windows.count - 2];
    }
    else {
        UIWindow* keyboardWithDoneButtonWindow = [ windows lastObject];
        return keyboardWithDoneButtonWindow;
        }
    
    [buttonDone addTarget:self action:@selector(doneButton:) forControlEvents:UIControlEventTouchUpInside];
    
    }
    

    Implement the 'doneButton' selector method to perform any behavior you want, like swap or toggle keyboards between numberPads or default, authenticate the app etc. And you should be golden!

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