102 lines
2.4 KiB
Objective-C
Executable File
102 lines
2.4 KiB
Objective-C
Executable File
//
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// HKHTextField.m
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// myhome
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//
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// Created by hkh on 16/9/19.
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//
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//
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#import "HKHTextField.h"
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#import "Pub.h"
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@interface HKHTextField()
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@property (nonatomic) int maxLength; // 可以输入的最大长度.默认值是 INT32_MAX
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@property (nonatomic) BOOL exitOnKeyReturn; // 键盘的 return/done ..etc 按下，是否隐藏键盘。 默认是 true
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@end
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@implementation HKHTextField
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// called by code
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- (instancetype)init
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{
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self = [super init];
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if (self) {
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[self customeInit];
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}
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return self;
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}
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// call when init from storyboard/xib/nib file
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- (instancetype)initWithCoder:(NSCoder *)coder
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{
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self = [super initWithCoder:coder];
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if (self) {
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[self customeInit];
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}
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return self;
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}
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// called by code
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- (instancetype)initWithFrame:(CGRect)frame
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{
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self = [super initWithFrame:frame];
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if (self) {
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[self customeInit];
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}
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return self;
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}
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// 自定义属性的初始化
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-(void) customeInit {
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_maxLength = INT32_MAX;
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_exitOnKeyReturn = true;
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// return 按下，键盘隐藏
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[self addTarget:self action:@selector(onEndOnExit) forControlEvents:UIControlEventEditingDidEndOnExit];
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[self addTarget:self action:@selector(onEditingDidBegin) forControlEvents:UIControlEventEditingDidBegin];
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}
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-(void) setMaxLength:(int)maxLen {
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_maxLength = maxLen;
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// UITextField的最大长度
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[self addTarget:self action:@selector(textDidChanged:) forControlEvents:UIControlEventEditingChanged];
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}
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/**
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* when textfiled's text did changed, and not end editing, this action will be call.
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* At this moment, wo can check the length.
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**/
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-(void) textDidChanged:(UITextField*)tf {
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if(tf.text.length > _maxLength) {
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tf.text = [tf.text substringToIndex:_maxLength-1];
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}
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}
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/**
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* enable/disable the software keyboard hide function when user tap the keyboard return key
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*
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**/
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-(void) setExitOnKeyReturn:(BOOL)exit {
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if (exit && self.exitOnKeyReturn) {
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return;
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}
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if (exit) {
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[self customeInit];
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} else {
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_exitOnKeyReturn = false;
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[self removeTarget:self action:@selector(textDidChanged:) forControlEvents:UIControlEventEditingDidEndOnExit];
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}
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}
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-(void) onEditingDidBegin {
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NSLog(@"onEditingDidBegin");
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[Pub getApp].activeTextField = self;
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}
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-(void) onEndOnExit {
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[self resignFirstResponder];
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[Pub getApp].activeTextField = nil;
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}
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@end
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