iOS自定義鍵盤的簡單實現

自定義鍵盤類VolumeInputKeyboardView:

VolumeInputKeyboardView.h文件：

1 #import <UIKit/UIKit.h>
2 
3 NS_ASSUME_NONNULL_BEGIN 4 
5 @interface VolumeInputKeyboardView : UIView 6 @property(weak, nonatomic) UITextField *m_textField; 7 @end
8 
9 NS_ASSUME_NONNULL_END

VolumeInputKeyboardView.m文件：

 1 switch  17:22:32
 2 #import <UIKit/UIKit.h>
 3 
 4 NS_ASSUME_NONNULL_BEGIN  5 
 6 @interface VolumeInputKeyboardView : UIView  7 @property(weak, nonatomic) UITextField *m_textField;  8 @end
 9 
10 NS_ASSUME_NONNULL_END 11 
12 switch  17:24:13
13 #import "VolumeInputKeyboardView.h"
14 #import "CommonFunc.h"
15 
16 @implementation VolumeInputKeyboardView 17 
18 
19 
20 - (instancetype)initWithFrame:(CGRect)frame 21 { 22     self = [super initWithFrame:frame]; 23     if (self) { 24  [self createTopBar]; 25         float width = (CGRectGetWidth(self.frame) - 3) / 4; 26         for(int i = 1; i < 10; ++i) 27  { 28             [self createKey:[NSString stringWithFormat:@"%d",i] posX:(width * ((i - 1) % 3) + ((i - 1) % 3)) posY:(44 + 45 * ((i - 1)/3)) width:width height:44]; 29  } 30         [self createKey:@"0" posX:0 posY:(44 + 45 * 3) width:(width * 2 + 1) height:44]; 31         [self createKey:@"←" posX:(width * 2 + 2) posY:(44 + 45 * 3) width:(width) height:44]; 32         [self createKey:@"+" posX:(width + 1) * 3 posY:44 width:width height:89]; 33         [self createKey:@"-" posX:(width + 1) * 3 posY:(44 + 45 * 2) width:(width) height:89]; 34  } 35     return self; 36 } 37 
38 - (void)createTopBar 39 { 40     UIView *topView = [UIView new]; 41  [topView setBackgroundColor:[UIColor darkGrayColor]]; 42  [self addSubview:topView]; 43     topView.frame = CGRectMake(0, 0, CGRectGetWidth(self.frame), 44); 44     
45     UILabel *lbInfo = [[UILabel alloc]initWithFrame:CGRectMake(5, 0, CGRectGetWidth(topView.frame) / 4 * 3 - 5, CGRectGetHeight(topView.frame))]; 46  [topView addSubview:lbInfo]; 47     [lbInfo setText:@"一些提示信息"]; 48  [lbInfo setLineBreakMode:NSLineBreakByWordWrapping]; 49     [lbInfo setNumberOfLines:0]; 50     [lbInfo setFont:[UIFont systemFontOfSize:14]]; 51  [lbInfo setTextColor:[UIColor whiteColor]]; 52     
53     UIButton *btnFinish = [[UIButton alloc]initWithFrame:CGRectMake(CGRectGetWidth(topView.frame) / 4 * 3, 0, CGRectGetWidth(topView.frame) / 4 , CGRectGetHeight(topView.frame))]; 54  [topView addSubview:btnFinish]; 55     [btnFinish setTitle:@"完成" forState:UIControlStateNormal]; 56  [btnFinish setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]; 57  [btnFinish setBackgroundImage:[CommonFunc imageWithColor:[UIColor orangeColor]] forState:UIControlStateHighlighted]; 58  [btnFinish addTarget:self action:@selector(hideKeyboard) forControlEvents:UIControlEventTouchUpInside]; 59 } 60 
61 - (void)createKey:(NSString *)title posX:(float)posX posY:(float)posY width:(float)width height:(float)height 62 { 63     UIButton *btnKey = [[UIButton alloc]initWithFrame:CGRectMake(posX, posY, width, height)]; 64  [self addSubview:btnKey]; 65  [btnKey addTarget:self action:@selector(buttonDidClicked:) forControlEvents:UIControlEventTouchUpInside]; 66  [btnKey setTitle:title forState:UIControlStateNormal]; 67  [btnKey setBackgroundColor:[UIColor lightGrayColor]]; 68  [btnKey setBackgroundImage:[CommonFunc imageWithColor:[UIColor orangeColor]] forState:UIControlStateHighlighted]; 69 } 70 
71 - (void)buttonDidClicked:(UIButton*)sender 72 { 73     self.m_textField.text = sender.titleLabel.text; 74 } 75 
76 -(void)layoutSubviews{ 77  [super layoutSubviews]; 78     
79 } 80 
81 - (void)hideKeyboard 82 { 83     //隱藏鍵盤
84  [self.m_textField endEditing:YES]; 85 } 86 @end

調用的地方：

1 VolumeInputKeyboardView *volumeKeyboard = [[VolumeInputKeyboardView alloc]initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, 224)]; 2  
3     volumeKeyboard.m_textField = self.m_textField; 4     //設置輸入框的鍵盤爲自定義的鍵盤
5     self.textField.inputView = volumeKeyboard;

最終實現的鍵盤效果以下：