iOS 键盘自适应（IQKeyboardManager）使用小结

Posted 2020-08-14

IQKeyboardManager Github地址

经常在开发一个应用程序，我们遇到了一个问题，iPhone的键盘上滑覆盖的UITextField / UITextView。IQKeyboardManager可以防止键盘滑动问题和覆盖UITextField / UITextView无需你输入任何代码，不需要额外的设置要求。使用IQKeyboardManager你只需要添加源文件到你的项目。

主要特点

1）无代码 
2）自动工作 
3）没有更多的UIScrollView
4）没有更多的子类 
5）没有更多的手动工作 
6）没有更多#imports

截图

IQKeyboardManager 支持 CocoaPods

pod ‘IQKeyboardManager’

管理

UINavigationBar

如果你不使用storyboard或xib创造你的视图。你需要重写-（void）UIViewController loadview方法，需要设置一个UIScrollView实例self.view。

-(void)loadView  

{ 

  UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];  

 self.view = scrollView; 

}

为某一个ViewController禁用IQKeyboardManager

如果你想在某个 viewcontroller 禁用 IQKeyboardManager 你应该在 ViewDidAppear 中禁用IQKeyboardManager，而在ViewWillDisappear启用它 
代码：

 #import "IQKeyboardManager.h" @implementationExampleViewController  {   BOOL _wasKeyboardManagerEnabled; }

-(void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];
    _wasKeyboardManagerEnabled = [[IQKeyboardManager sharedManager] isEnabled];
    [[IQKeyboardManager sharedManager] setEnable:NO];
}

-(void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    [[IQKeyboardManager sharedManager] setEnable:_wasKeyboardManagerEnabled];  }  @end

键盘的回车键处理

1）创建一个实例变量实例化IQKeyboardReturnKeyHandler 在 ViewController 的 viewDidLoad 中

代码：

	@implementationViewController  {  IQKeyboardReturnKeyHandler *returnKeyHandler;
}

- (void)viewDidLoad
{
    [super viewDidLoad];

    returnKeyHandler = [[IQKeyboardReturnKeyHandler alloc] initWithViewController:self];
}

改变键盘上的返回键。

设置实例变量为零的dealloc方法

-(void)dealloc {
    returnKeyHandler = nil;
}

UIToolbar(IQToolbar)

1）如果你不想添加一个特定的自动工具栏在键盘上方，应该添加一个类作为它的工具栏

textField.inputAccessoryView = [[UIView alloc] init];

2）如果你需要自己控制上/下/完成按钮，那么应该使用UIView类的方法，创建你的文本框工具栏。

代码：

-(void)viewDidLoad
{  

	 [super viewDidLoad];      //Adding done button for textField1   [textField1 addDoneOnKeyboardWithTarget:self action:@selector(doneAction:)];      //Adding previous/next/done button for textField2   [textField2 addPreviousNextDoneOnKeyboardWithTarget:self previousAction:@selector(previousAction:) nextAction:@selector(nextAction:) doneAction:@selector(doneAction:)];     //Adding cancel/done button for textField3   [textField3 addCancelDoneOnKeyboardWithTarget:self cancelAction:@selector(cancelAction:) doneAction:@selector(doneAction:)]; }    /*! previousAction. */  -(void)previousAction:(id)button {   //previousAction  }    /*! nextAction. */  -(void)nextAction:(id)button {   //nextAction  }    /*! doneAction. */  -(void)doneAction:(UIBarButtonItem*)barButton {   //doneAction  }    /*! cancelAction. */  -(void)cancelAction:(UIBarButtonItem*)barButton {  //cancelAction   }

功能和使用

UIKeyboard 处理

+(instancetype)sharedManager : Returns the default singleton instance.

@property BOOL enable : Use this to enable/disable managing distance between keyboard & textField/textView).

@property CGFloat keyboardDistanceFromTextField : Set Distance between keyboard & textField. Can‘t be less than zero. [email protected] BOOL preventShowingBottomBlankSpace : Prevent to show bottom blanck area when keyboard slide up the view.

IQToolbar处理

@property BOOL enableAutoToolbar : Enable autoToolbar behaviour. If It is set to NO. You have to manually create UIToolbar for keyboard. Defaultis YES.

@property IQAutoToolbarManageBehaviour toolbarManageBehaviour : Setting toolbar behaviour to IQAutoToolbarBySubviews to manage previous/next according to UITextField‘s hierarchy in it‘s SuperView. Set it to IQAutoToolbarByTag to manage previous/next according to UITextField‘s tag propertyin increasing order. Defaultis IQAutoToolbarBySubviews.

@property BOOL shouldToolbarUsesTextFieldTintColor : If YES, then uses textField‘s tintColor propertyfor IQToolbar, otherwise tintColor is black. Defaultis NO. 

@property BOOL shouldShowTextFieldPlaceholder : If YES, then it add the textField‘s placeholder text on IQToolbar. Defaultis YES. 

@property UIFont *placeholderFont : placeholder Font. Defaultis nil. Defaultis YES.

UITextView处理

@property BOOL canAdjustTextView : Giving permission to modify TextView‘s frame. Adjust textView‘s frame when it is too big in height. Defaultis NO.

@property BOOL shouldFixTextViewClip : Adjust textView‘s contentInset to fix fix for ios 7.0.x -(#Stackoverflow). Defaultis YES.

UIKeyboard 外观覆盖

@property BOOL overrideKeyboardAppearance : Override the keyboardAppearance for all textField/textView. Defaultis NO.

@property UIKeyboardAppearance keyboardAppearance : If overrideKeyboardAppearance is YES, then all the textField keyboardAppearance issetusing this property.

关闭UITextField/UITextView

@propertyBOOL shouldResignOnTouchOutside : Resign textField if touched outside of UITextField/UITextView.

-(void)resignFirstResponder : Resigns currently first responder field.

UISound处理

@property BOOL shouldPlayInputClicks : If YES, then it plays inputClick sound onnext/previous/done click. Defaultis NO.

UIAnimation

@property BOOL shouldAdoptDefaultKeyboardAnimation : If YES, thenuses keyboard default animation curve style to move view, otherwise uses UIViewAnimationOptionCurveEaseOut animation style. Defaultis YES.

特征

1）支持设备方向。 
2）启用/禁用键盘消息时，需要设置 enable 的布尔值。 
3）简单的集成。 
4）作为一个textField/textView的AutoHandle UIToolbar需要设置 enableAutoToolbar 的布尔值。 
5）可以由父视图AutoHandle UIToolbar或textField/textView，使用toolbarManageBehaviour枚举。 
6）方便地添加上下和完成按钮键盘UIToolbar UIView类，自动使用enableAutoToolbar布尔值。 
7）启用/禁用，下/上一个按钮类的方法，自动使用enableAutoToolbar布尔值。 
8）键盘设置距离文本框使用keyboardDistanceFromTextField。 
9）键盘触摸外面用shouldResignOnTouchOutside. 禁用。 
10）管理的框架时，UITextView高度太大，使用canAdjustTextView 设置适合屏幕。 
11）适用在UITableView/UIScrollView 中的UITextField/UITextView
12）可以输入声音在点击“下/上一页/完成”时。

 

延伸阅读：

      IQKeyboardManager 
      iOS自动处理键盘事件的第三方库：IQKeyboardManager

 

以上就介绍了iOS 键盘自适应（IQKeyboardManager）使用小结，包括了方面的内容，希望对IOS开发有兴趣的朋友有所帮助。

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