【iOS自定义键盘及键盘切换】详解

【iOS自定义键盘】详解

实现效果展示：

一、实现的协议方法代码

 #import <UIKit/UIKit.h>
 
 //创建自定义键盘协议
 @protocol XFG_KeyBoardDelegate <NSObject>
 //创建协议方法
 @required//必须执行的方法
 - (void)numberKeyBoard:(NSInteger) number;
 - (void)cancelKeyBoard;
 - (void)finishKeyBoard;
 - (void)periodKeyBoard;
 - (void)changeKeyBoard;
 @optional//不必须执行方法
 
 @end
 
 @interface XFG_KeyBoard : UIView
 {
     @private//私有的协议方法
     id<XFG_KeyBoardDelegate> _delegate;
 }
 
 @property (nonatomic, strong) id<XFG_KeyBoardDelegate> delegate;
 
 - (id)initWithNumber:(NSNumber *)number;
 @end

二、自定义键盘创建

 #import "XFG_KeyBoard.h"
 #define kScreenWidth   [UIScreen mainScreen].bounds.size.width
 #define kScreenHeight  [UIScreen mainScreen].bounds.size.height
 
 @implementation XFG_KeyBoard
 
 - (id)initWithNumber:(NSNumber *)number
 {
     self = [super init];
     if (self) {
 
         self.backgroundColor = [UIColor greenColor];
         self.frame = CGRectMake(, kScreenHeight - , kScreenHeight, );
         if ([number isEqualToNumber:@]) {
 
             [self initKeyBoardNumber_1];
         } else if ([number isEqualToNumber:@]){
 
             [self initKeyBoardNumber_2];
         } else if ([number isEqualToNumber:@]){
 
             [self initKeyBoardNumber_3];
         }
     }
 
     return self;
 }
 
 #pragma 键盘1自定义视图
 - (void)initKeyBoardNumber_1
 {
     self.frame=CGRectMake(, kScreenHeight-, kScreenWidth, );
     int space=;
     for (int i=; i<; i++) {
         NSString *str=[NSString stringWithFormat:@"%d",i+];
         UIButton *button=[UIButton buttonWithType:UIButtonTypeSystem];
         if (i<) {
             button.frame=CGRectMake(i%*(kScreenWidth/)+space, i/*, kScreenWidth/-, );
         }
         else{
             button.frame=CGRectMake(i%*(kScreenWidth/)+space, i/*+i/*space, kScreenWidth/-, );
         }
         button.backgroundColor=[UIColor whiteColor];
         [button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
         button.titleLabel.font=[UIFont systemFontOfSize:];
         [button setTitle:str forState:UIControlStateNormal];
         button.tag=i+;
         [button addTarget:self action:@selector(keyBoardAciont:) forControlEvents:UIControlEventTouchUpInside];
         [self addSubview:button];
     }
     UIButton *dian=[UIButton buttonWithType:UIButtonTypeSystem];
     dian.frame=CGRectMake(space,*+ , kScreenWidth/-, );
     dian.backgroundColor=[UIColor whiteColor];
     [dian setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
     dian.titleLabel.font=[UIFont systemFontOfSize:];
     [dian addTarget:self action:@selector(keyBoardAciont:) forControlEvents:UIControlEventTouchUpInside];
     [dian setTitle:@"." forState:UIControlStateNormal];
     dian.tag=;
     [self addSubview:dian];
     UIButton *ling=[UIButton buttonWithType:UIButtonTypeSystem];
     ling.frame=CGRectMake(kScreenWidth/+*space,*+, kScreenWidth/-, );
     ling.backgroundColor=[UIColor whiteColor];
     [ling setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
     ling.titleLabel.font=[UIFont systemFontOfSize:];
     [ling setTitle:@"" forState:UIControlStateNormal];
     ling.tag=;
     [ling addTarget:self action:@selector(keyBoardAciont:) forControlEvents:UIControlEventTouchUpInside];
     [self addSubview:ling];
 
     UIButton *computer=[UIButton buttonWithType:UIButtonTypeSystem];
     computer.frame=CGRectMake(kScreenWidth/*+space,*+, kScreenWidth/-, );
     computer.backgroundColor=[UIColor whiteColor];
     [computer setTitle:@"系统键盘" forState:UIControlStateNormal];
     computer.tag=;
     [computer addTarget:self action:@selector(keyBoardAciont:) forControlEvents:UIControlEventTouchUpInside];
     [self addSubview:computer];
 
     UIButton *delete=[UIButton buttonWithType:UIButtonTypeSystem];
     delete.frame=CGRectMake(kScreenWidth/*+space,, kScreenWidth/-, );
     [delete addTarget:self action:@selector(keyBoardAciont:) forControlEvents:UIControlEventTouchUpInside];
     delete.tag=;
 
     UIImageView *deleteImage=[[UIImageView alloc]initWithFrame:CGRectMake((kScreenWidth/- - ) * 1.0 / , , , )];
     deleteImage.image=[UIImage imageNamed:@"goumai_03"];
     [delete addSubview:deleteImage];
 
     // [delete setBackgroundImage:[UIImage imageNamed:@"goumai_03"] forState:UIControlStateNormal];
     [self addSubview:delete];
 
     UIButton *confirm=[UIButton buttonWithType:UIButtonTypeSystem];
     confirm.frame=CGRectMake(kScreenWidth/*+space,*, kScreenWidth/-, );
     confirm.backgroundColor=[UIColor blueColor];
     [confirm setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
     confirm.titleLabel.font=[UIFont systemFontOfSize:];
     [confirm setTitle:@"确 定" forState:UIControlStateNormal];
     [confirm addTarget:self action:@selector(keyBoardAciont:) forControlEvents:UIControlEventTouchUpInside];
     confirm.tag=;
     [self addSubview:confirm];
 }
 
 #pragma 键盘2自定义视图
 - (void)initKeyBoardNumber_2
 {
     UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(, , kScreenWidth - , )];
 
     button.backgroundColor = [UIColor grayColor];
     button.titleLabel.font = [UIFont systemFontOfSize:];
     [button setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
     [button addTarget:self action:@selector(keyBoardAciont:) forControlEvents:UIControlEventTouchUpInside];
     [self addSubview:button];
     button.tag = ;
     [button setTitle:@"" forState:UIControlStateNormal];
 
     UIButton *cancel = [[UIButton alloc] initWithFrame:CGRectMake(button.bounds.origin.x + button.bounds.size.width, , , )];
 
     cancel.backgroundColor = [UIColor yellowColor];
     cancel.titleLabel.font = [UIFont systemFontOfSize:];
     [cancel setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
     [cancel addTarget:self action:@selector(keyBoardAciont:) forControlEvents:UIControlEventTouchUpInside];
     [self addSubview:cancel];
     cancel.tag = ;
     [cancel setTitle:@"删 除" forState:UIControlStateNormal];
 }
 
 #pragma 键盘3自定义视图
 - (void)initKeyBoardNumber_3
 {
     UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(, , kScreenWidth - , )];
 
     button.backgroundColor = [UIColor purpleColor];
     button.titleLabel.font = [UIFont systemFontOfSize:];
     [button setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
     [button addTarget:self action:@selector(keyBoardAciont:) forControlEvents:UIControlEventTouchUpInside];
     [self addSubview:button];
     button.tag = ;
     [button setTitle:@"" forState:UIControlStateNormal];
 
     UIButton *cancel = [[UIButton alloc] initWithFrame:CGRectMake(button.bounds.origin.x + button.bounds.size.width, , , )];
 
     cancel.backgroundColor = [UIColor yellowColor];
     cancel.titleLabel.font = [UIFont systemFontOfSize:];
     [cancel setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
     [cancel addTarget:self action:@selector(keyBoardAciont:) forControlEvents:UIControlEventTouchUpInside];
     [self addSubview:cancel];
     cancel.tag = ;
     [cancel setTitle:@"删 除" forState:UIControlStateNormal];
 }
 
 #pragma 键盘点击按钮事件
 - (void)keyBoardAciont:(UIButton *)sender
 {
 
     UIButton* btn = (UIButton*)sender;
 
     NSInteger number = btn.tag;
 
     // no delegate, print log info
     if (nil == _delegate) {
         NSLog(@"button tag [%ld]",(long)number);
         return;
     }
 
     if (number <=  && number >= ) {
         [_delegate numberKeyBoard:number];
         return;
     }
 
     if ( == number) {
         [_delegate cancelKeyBoard];
         return;
     }
     if ( == number) {
         [_delegate periodKeyBoard];
         return;
     }
     if ( == number) {
         [_delegate changeKeyBoard];
         return;
     }
 
     if ( == number) {
         [_delegate finishKeyBoard];
         return;
     }
 
 }
 
 @end

三、自定义键盘运用

 #import "ViewController.h"
 #import "XFG_KeyBoard.h"
 #define kScreenWidth   [UIScreen mainScreen].bounds.size.width
 #define kScreenHeight  [UIScreen mainScreen].bounds.size.height
 
 @interface ViewController ()<UITextFieldDelegate, XFG_KeyBoardDelegate>
 
 @property (nonatomic, strong) XFG_KeyBoard *xfg_keyboard;
 @property (nonatomic, strong) UITextField *textField;
 @end
 
 @implementation ViewController
 
 - (void)viewDidLoad {
     [super viewDidLoad];
     // Do any additional setup after loading the view, typically from a nib.
     self.title = @"小飞哥键盘";
     self.textField = [[UITextField alloc] initWithFrame:CGRectMake(, , kScreenWidth - , )];
     self.textField.delegate = self;
     self.textField.backgroundColor = [UIColor greenColor];
     self.textField.placeholder = @"(默认系统键盘)";
 
     [self.view addSubview:self.textField];
 
     UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(hidenKeyBoard)];
     [self.view addGestureRecognizer:tap];
 
     UISegmentedControl *segment = [[UISegmentedControl alloc]  initWithItems:@[@"键盘1",@"键盘2",@"键盘3",@"系统键盘"]];
     segment.frame = CGRectMake(, , kScreenWidth, );
     [segment addTarget:self action:@selector(keyBoardTypeAction:) forControlEvents:UIControlEventValueChanged];
     [self.view addSubview:segment];
 
 }
 
 - (void)keyBoardTypeAction:(id )sender
 {
     UISegmentedControl *seg = (UISegmentedControl *)sender;
     NSLog(@"intage = %ld", (long)seg.selectedSegmentIndex);
 
     if (seg.selectedSegmentIndex == ) {
         self.xfg_keyboard = [[XFG_KeyBoard alloc] initWithNumber:@];
         self.textField.inputView = self.xfg_keyboard;
         self.xfg_keyboard.delegate = self;
         [self.textField reloadInputViews];
     }
     if (seg.selectedSegmentIndex == ) {
         self.xfg_keyboard = [[XFG_KeyBoard alloc] initWithNumber:@];
         self.textField.inputView = self.xfg_keyboard;
         self.xfg_keyboard.delegate = self;
         [self.textField reloadInputViews];
 
     }
 
     if (seg.selectedSegmentIndex == ) {
         self.xfg_keyboard = [[XFG_KeyBoard alloc] initWithNumber:@];
         self.textField.inputView = self.xfg_keyboard;
         self.xfg_keyboard.delegate = self;
         [self.textField reloadInputViews];
     }
 
     if (seg.selectedSegmentIndex == ) {
         self.textField.inputView = nil;
         [self.textField reloadInputViews];
     }
 
 }
 
 - (void)hidenKeyBoard
 {
     NSLog(@"键盘隐藏");
     [self.textField resignFirstResponder];
 }
 
 - (void)textFieldDidBeginEditing:(UITextField *)textField
 {
     NSLog(@"显示键盘");
 }
 
 - (void)numberKeyBoard:(NSInteger)number
 {
     NSString *str = self.textField.text;
     self.textField.text = [NSString stringWithFormat:@"%@%ld",str,(long)number];
 }
 
 - (void)cancelKeyBoard
 {
 
     NSMutableString *muStr = [[NSMutableString alloc] initWithString:self.textField.text];
     if (muStr.length <= ) {
         return;
     }
     [muStr deleteCharactersInRange:NSMakeRange([muStr length] - , )];
     self.textField.text = muStr;
 }
 
 #pragma 输入点
 -(void)periodKeyBoard{
 
     if ([self.textField.text isEqualToString:@""]) {
         return;
     }
 
     //判断当前时候存在一个点
     if ([self.textField.text rangeOfString:@"."].location == NSNotFound) {
         //输入中没有点
         NSMutableString  *mutableString=[[NSMutableString alloc]initWithFormat:@"%@%@",self.textField.text,@"."];
         self.textField.text=mutableString;
     }
 }
 
 -(void)changeKeyBoard{
 
     self.textField.inputView = nil;
     [self.textField reloadInputViews];
 }
 
 -(void)finishKeyBoard{
     [self.view endEditing:YES];
 }
 
 - (void)didReceiveMemoryWarning {
     [super didReceiveMemoryWarning];
     // Dispose of any resources that can be recreated.
 }
 
 @end