iOS自定义发送消息输入框

船头尺

简单的封装了一个，免得麻烦直接初始化就可以用了 ，有其他需求该里面参数就行了

WJEasyInputTextView.h

1. //
   
2. //  WJEasyInputTextView.h
   
3. //  键盘上的输入框
   
4. //
   
5. //  Created by apple on 15/6/23.
   
6. //  Copyright (c) 2015年 tqh. All rights reserved.
   
7. //
   
8. 
   
9. #import <UIKit/UIKit.h>
   
10. 
    
11. /**
    
12. *  使用 直接初始化，也可以改属性
    
13. WJEasyInputTextView *wj = [[WJEasyInputTextView alloc]init];
    
14. wj.bgColor = [UIColor orangeColor];
    
15. wj.showLimitNum = YES;
    
16. wj.font = [UIFont systemFontOfSize:18];
    
17. wj.limitNum = 13;
    
18. [self.view addSubview:wj];
    
19. */
    
20. 
    
21. @interface WJEasyInputTextView : UIView
    
22. 
    
23. @property (nonatomic,strong)UIColor *bgColor;   //背景色
    
24. @property (nonatomic,assign)BOOL showLimitNum; //显示字数
    
25. @property (nonatomic,assign)NSInteger limitNum; //限制字数
    
26. @property (nonatomic,strong)UIFont *font;       //文字大小
    
27. 
    
28. @end

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WJEasyInputTextView.m

1. //
   
2. //  WJEasyInputTextView.m
   
3. //  键盘上的输入框
   
4. //
   
5. //  Created by apple on 15/6/23.
   
6. //  Copyright (c) 2015年 tqh. All rights reserved.
   
7. //
   
8. 
   
9. #import "WJEasyInputTextView.h"
   
10. 
    
11. @interface WJEasyInputTextView ()<UITextViewDelegate> {
    
12.     UIView *_bottomView;//评论框
    
13.     UITextView *_textView;//输入框
    
14.     UILabel *_textApl;//字数
    
15.     CGRect _rect;
    
16. }
    
17. @end
    
18. 
    
19. @implementation WJEasyInputTextView
    
20. 
    
21. - (instancetype)init
    
22. {
    
23.     self = [super init];
    
24.     if (self) {
    
25.         self.frame = CGRectMake(0, CGRectGetHeight([UIScreen mainScreen].bounds)-50, CGRectGetWidth([UIScreen mainScreen].bounds), 50);
    
26.         _rect = self.frame;
    
27.         [self initNotification];
    
28.         [self AddtextFieldComments];
    
29.     }
    
30.     return self;
    
31. }
    
32. 
    
33. 
    
34. #pragma mark - 初始化键盘监听
    
35. 
    
36. - (void)initNotification {
    
37.     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
    
38.     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
    
39. }
    
40. 
    
41. #pragma mark - 初始化视图
    
42. 
    
43. - (void)AddtextFieldComments  {
    
44.     _bottomView = [[UIView alloc] initWithFrame:self.bounds];
    
45.     _bottomView.backgroundColor = self.bgColor;
    
46.     _bottomView.userInteractionEnabled= YES;
    
47.     [self addSubview:_bottomView];
    
48.    
    
49.     UIView *lineView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, CGRectGetWidth(self.bounds), 0.5)];
    
50.     lineView.backgroundColor = [UIColor colorWithWhite:0.6 alpha:0.3];
    
51.     [_bottomView addSubview:lineView];
    
52.    
    
53.     _textView = [[UITextView alloc] initWithFrame:CGRectMake(15, 5, CGRectGetWidth(self.bounds) - 115, 40)];
    
54.     _textView.layer.cornerRadius = 6;
    
55.     _textView.layer.borderWidth = 1;
    
56.     _textView.delegate = self;
    
57.     _textView.font = [UIFont systemFontOfSize:13];
    
58.     _textView.autocapitalizationType = UITextAutocapitalizationTypeNone;
    
59.     _textView.autocorrectionType = UITextAutocorrectionTypeNo;
    
60.     _textView.layer.borderColor = lineView.backgroundColor.CGColor;
    
61.     [_bottomView addSubview:_textView];
    
62.    
    
63.     _textApl = [[UILabel alloc] init];
    
64.     _textApl.frame = CGRectMake(CGRectGetMaxX(_textView.frame)-37, 35, 30, 6);
    
65.     _textApl.textColor = [UIColor grayColor];
    
66.     _textApl.textAlignment = NSTextAlignmentRight;
    
67.     _textApl.font = [UIFont systemFontOfSize:8];
    
68. //    _textApl.text = @"140";
    
69.     [_bottomView addSubview:_textApl];
    
70.    
    
71.     UIButton *plBtn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    
72.     plBtn.layer.borderWidth = 1;
    
73.     plBtn.backgroundColor = [UIColor whiteColor];
    
74.     [plBtn setTitle:@"发送" forState:UIControlStateNormal];
    
75.     [plBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    
76.     plBtn.layer.cornerRadius = 6;
    
77.     plBtn.layer.borderColor = lineView.backgroundColor.CGColor;
    
78.     plBtn.frame = CGRectMake(CGRectGetMaxX(_textView.frame) + 10, CGRectGetMinY(_textView.frame), 80, CGRectGetHeight(_textView.frame));
    
79.     [plBtn addTarget:self action:@selector(pinglun) forControlEvents:UIControlEventTouchUpInside];
    
80.     [_bottomView addSubview:plBtn];
    
81. }
    
82. 
    
83. #pragma mark - get方法
    
84. 
    
85. - (void)setBgColor:(UIColor *)bgColor {
    
86.     _bgColor = bgColor;
    
87.     _bottomView.backgroundColor = bgColor;
    
88. }
    
89. 
    
90. - (void)setLimitNum:(NSInteger)limitNum {
    
91.     NSLog(@"%ld",limitNum);
    
92.     _limitNum = limitNum;
    
93.     _textApl.text = [NSString stringWithFormat:@"%ld",limitNum];
    
94. }
    
95. 
    
96. - (void)setShowLimitNum:(BOOL)showLimitNum {
    
97.     _showLimitNum = showLimitNum;
    
98.     if (showLimitNum) {
    
99.         _textApl.hidden = NO;
    
100.     }else {
     
101.         _textApl.hidden = YES;
     
102.     }
     
103. }
     
104. 
     
105. - (void)setFont:(UIFont *)font {
     
106.     _font = font;
     
107.     _textView.font = font;
     
108. }
     
109. 
     
110. #pragma mark - 事件监听
     
111. 
     
112. - (void)pinglun
     
113. {
     
114.     NSLog(@"发送");
     
115. }
     
116. 
     
117. - (void)textViewDidChange:(UITextView *)textView {
     
118.     if (_showLimitNum) {
     
119.         NSString *toBeString = textView.text;
     
120.         NSArray *currentar = [UITextInputMode activeInputModes];
     
121.         UITextInputMode *current = [currentar firstObject];
     
122.         
     
123.         //下面的方法是iOS7被废弃的，注释
     
124.         //    NSString *lang = [[UITextInputMode currentInputMode] primaryLanguage]; // 键盘输入模式
     
125.         
     
126.         if ([current.primaryLanguage isEqualToString:@"zh-Hans"]) { // 简体中文输入，包括简体拼音，健体五笔，简体手写
     
127.             UITextRange *selectedRange = [textView markedTextRange];
     
128.             //获取高亮部分
     
129.             UITextPosition *position = [textView positionFromPosition:selectedRange.start offset:0];
     
130.             // 没有高亮选择的字，则对已输入的文字进行字数统计和限制
     
131.             if (!position) {
     
132.                 if (toBeString.length > _limitNum) {
     
133.                     textView.text = [toBeString substringToIndex:_limitNum];
     
134.                 }
     
135.             }
     
136.             // 有高亮选择的字符串，则暂不对文字进行统计和限制
     
137.             else{
     
138.                
     
139.             }
     
140.         }
     
141.         // 中文输入法以外的直接对其统计限制即可，不考虑其他语种情况
     
142.         else{
     
143.             if (toBeString.length > _limitNum) {
     
144.                 textView.text = [toBeString substringToIndex:_limitNum];
     
145.             }
     
146.         }
     
147.         NSLog(@"%@",textView.text);
     
148.     }else {
     
149.         
     
150.     }
     
151. }
     
152. 
     
153. 
     
154. #pragma mark - 键盘监听
     
155. 
     
156. - (void)keyboardWillShow:(NSNotification *)notification
     
157. {
     
158.     //得到键盘高度
     
159.     NSDictionary *userInfo = [notification userInfo];
     
160.     NSValue* aValue = [userInfo objectForKey:UIKeyboardFrameEndUserInfoKey];
     
161.     CGRect keyboardRect = [aValue CGRectValue];
     
162.     // - 49
     
163.     self.frame = CGRectMake(0, CGRectGetHeight([UIScreen mainScreen].bounds) - keyboardRect.size.height - 50, CGRectGetWidth(_bottomView.frame), CGRectGetHeight(_bottomView.frame));
     
164.    
     
165. }
     
166. 
     
167. - (void)keyboardWillHide:(NSNotification *)notification
     
168. {
     
169.     //-49
     
170.     self.frame = _rect;
     
171. }
     
172. 
     
173. @end

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效果图：