//
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// PBEditTextController.m
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// IphoneBIMe
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//
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// Created by zjf on 2018/8/14.
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// Copyright © 2018年 ProBIM. All rights reserved.
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//
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#import "PBEditTextController.h"
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#import "IQKeyboardManager.h"
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#define maxTextCount 150
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@interface PBEditTextController ()<UITextViewDelegate, UIGestureRecognizerDelegate>
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@property (nonatomic, weak) UITextView *textView;
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@property (nonatomic, weak) UILabel *textLengthL;
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@property (nonatomic, weak) UILabel *promptL;
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@end
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@implementation PBEditTextController
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- (void)viewWillAppear:(BOOL)animated {
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[super viewWillAppear:animated];
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[[IQKeyboardManager sharedManager] setEnable:NO];
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}
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- (void)viewWillDisappear:(BOOL)animated {
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[super viewWillDisappear:animated];
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[[IQKeyboardManager sharedManager] setEnable:YES];
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}
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- (void)viewDidLoad {
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[super viewDidLoad];
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if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.f) {
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// self.edgesForExtendedLayout = UIRectEdgeNone;
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self.navigationController.interactivePopGestureRecognizer.enabled = YES;
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self.navigationController.interactivePopGestureRecognizer.delegate = self;
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}
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[self setupNav];
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[self setupUI];
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}
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//- (void)viewWillAppear:(BOOL)animated {
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// [super viewWillAppear:YES];
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// //导航栏背景颜色
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// [self.navigationController.navigationBar setBarTintColor:PBColor(35, 36, 41)];
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// // 去掉导航条下边的线
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// self.navigationController.navigationBar.shadowImage = [[UIImage alloc] init];
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// //返回按钮颜色
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// self.navigationController.navigationBar.tintColor = [UIColor redColor];
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// for (UIBarButtonItem *item in self.navigationItem.leftBarButtonItems) {
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// [item setTitleTextAttributes:@{NSForegroundColorAttributeName: [UIColor blueColor]} forState:UIControlStateNormal];
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// }
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// for (UIBarButtonItem *item in self.navigationItem.rightBarButtonItems) {
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// [item setTitleTextAttributes:@{NSForegroundColorAttributeName: [UIColor blueColor]} forState:UIControlStateNormal];
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// }
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//// [item setTitleTextAttributes:@{NSForegroundColorAttributeName: IndicatedColor} forState:UIControlStateHighlighted];
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//// [item setTitleTextAttributes:@{NSForegroundColorAttributeName: [UIColor lightGrayColor]} forState:UIControlStateDisabled];
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//
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// //标题颜色
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// [self.navigationController.navigationBar setTitleTextAttributes:@{NSForegroundColorAttributeName : [UIColor whiteColor],NSFontAttributeName: [UIFont boldSystemFontOfSize:16]}];
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//}
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- (void)setupNav {
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// PBBackNavItem *backNav = [PBBackNavItem backNacItem];
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// backNav.title = @"取消";
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// [backNav addTarget:self action:@selector(backItemAction) forControlEvents:UIControlEventTouchUpInside];
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// UIBarButtonItem *backNavItem = [[UIBarButtonItem alloc] initWithCustomView:backNav];
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UIBarButtonItem *backNavItem = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"Doc_preview_back"] style:UIBarButtonItemStylePlain target:self action:@selector(backItemAction)];
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self.navigationItem.leftBarButtonItem = backNavItem;
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UIBarButtonItem *saveNavItem = [[UIBarButtonItem alloc] initWithTitle:@"完成" style:UIBarButtonItemStylePlain target:self action:@selector(saveText)];
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self.navigationItem.rightBarButtonItem = saveNavItem;
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}
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- (void)backItemAction {
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[self.navigationController popViewControllerAnimated:YES];
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}
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- (void)saveText {
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if(self.CompleteEditTextBlock) {
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self.CompleteEditTextBlock(_textView.text);
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}
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[self.navigationController popViewControllerAnimated:YES];
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}
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- (void)setupUI {
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self.view.backgroundColor = [UIColor z_colorWithR:242 G:242 B:242];
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UIView *bgView = [[UIView alloc] init];
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bgView.backgroundColor = [UIColor whiteColor];
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bgView.layer.borderWidth = 1.f;
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bgView.layer.borderColor = [[UIColor z_colorWithR:219 G:219 B:219] CGColor];
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[self.view addSubview:bgView];
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[bgView mas_makeConstraints:^(MASConstraintMaker *make) {
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make.top.equalTo(self.view).offset(10);
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make.left.equalTo(self.view).offset(16);
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make.right.equalTo(self.view).offset(-16);
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make.height.equalTo(@250);
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}];
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UITextView *textView = [[UITextView alloc] init];
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textView.textColor= TitleColor;
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textView.font = [UIFont systemFontOfSize:TitleFontSize];
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[textView becomeFirstResponder];
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textView.delegate = self;
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textView.text = _text;
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[bgView addSubview:textView];
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[textView mas_makeConstraints:^(MASConstraintMaker *make) {
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make.top.equalTo(bgView).offset(16);
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make.left.equalTo(bgView).offset(16);
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make.right.equalTo(bgView).offset(-16);
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make.bottom.equalTo(bgView).offset(-46);
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}];
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UILabel *promptL= [UILabel z_labelWithText:_prompt Color:IgnoreColor isBold:NO Font:TitleFontSize];
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[bgView addSubview:promptL];
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[promptL mas_makeConstraints:^(MASConstraintMaker *make) {
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make.top.equalTo(textView).offset(8);
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make.left.equalTo(textView).offset(6);
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}];
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if (_text.length != 0) {
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promptL.hidden = YES;
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}
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UIButton *clearAllBtn = [UIButton z_bgImageButton:[UIImage imageNamed:@"Issue_editText_clearAll"]];
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[clearAllBtn addTarget:self action:@selector(clearAllAction) forControlEvents:UIControlEventTouchUpInside];
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[bgView addSubview:clearAllBtn];
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[clearAllBtn mas_makeConstraints:^(MASConstraintMaker *make) {
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make.bottom.equalTo(bgView).offset(-11);
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make.left.equalTo(bgView).offset(22);
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make.size.mas_equalTo(CGSizeMake(79, 16));
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}];
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UILabel *textLengthL = [UILabel z_labelWithText:[NSString stringWithFormat:@"%lu/%d",(unsigned long)_text.length,maxTextCount] Color:DescColor isBold:NO Font:DescFontSize];
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textLengthL.textAlignment = NSTextAlignmentRight;
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[bgView addSubview:textLengthL];
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[textLengthL mas_makeConstraints:^(MASConstraintMaker *make) {
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make.centerY.equalTo(clearAllBtn);
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make.right.equalTo(bgView).offset(-16);
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make.height.equalTo(@20);
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}];
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self.textView = textView;
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self.promptL = promptL;
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self.textLengthL = textLengthL;
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}
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- (void)clearAllAction {
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_text = @"";
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_textView.text = _text;
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self.promptL.hidden = NO;
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_textLengthL.text = [NSString stringWithFormat:@"%lu/%d",(unsigned long)_text.length,maxTextCount];
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}
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- (void)setText:(NSString *)text {
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_text = text;
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}
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- (void)setTitleText:(NSString *)titleText {
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self.title = titleText;
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}
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- (void)setPrompt:(NSString *)prompt {
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_prompt = prompt;
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}
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#pragma mark - UITextViewDelete
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- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range
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replacementText:(NSString *)text {
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NSLog(@"%zd",textView.text.length);
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NSLog(@"===shouldChangeText");
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UITextRange *selectedRange = [textView markedTextRange];
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//获取高亮部分
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UITextPosition *pos = [textView positionFromPosition:selectedRange.start offset:0];
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//获取高亮部分内容
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//NSString * selectedtext = [textView textInRange:selectedRange];
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//如果有高亮且当前字数开始位置小于最大限制时允许输入
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if (selectedRange && pos) {
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NSInteger startOffset = [textView offsetFromPosition:textView.beginningOfDocument toPosition:selectedRange.start];
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NSInteger endOffset = [textView offsetFromPosition:textView.beginningOfDocument toPosition:selectedRange.end];
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NSRange offsetRange = NSMakeRange(startOffset, endOffset - startOffset);
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if (offsetRange.location < maxTextCount) {
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return YES;
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}
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else{
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return NO;
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}
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}
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NSString *comcatstr = [textView.text stringByReplacingCharactersInRange:range withString:text];
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NSInteger caninputlen = maxTextCount - comcatstr.length;
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if (caninputlen >= 0){
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return YES;
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}else{
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NSInteger len = text.length + caninputlen;
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//防止当text.length + caninputlen < 0时，使得rg.length为一个非法最大正数出错
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NSRange rg = {0,MAX(len,0)};
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if (rg.length > 0){
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NSString *s = @"";
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//判断是否只普通的字符或asc码(对于中文和表情返回NO)
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BOOL asc = [text canBeConvertedToEncoding:NSASCIIStringEncoding];
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if (asc) {
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s = [text substringWithRange:rg];//因为是ascii码直接取就可以了不会错
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}else{
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__block NSInteger idx = 0;
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__block NSString *trimString = @"";//截取出的字串
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//使用字符串遍历，这个方法能准确知道每个emoji是占一个unicode还是两个
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[text enumerateSubstringsInRange:NSMakeRange(0, [text length])
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options:NSStringEnumerationByComposedCharacterSequences
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usingBlock: ^(NSString* substring, NSRange substringRange, NSRange enclosingRange, BOOL* stop) {
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if (idx >= rg.length) {
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*stop = YES; //取出所需要就break，提高效率
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return ;
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}
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trimString = [trimString stringByAppendingString:substring];
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idx++;
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}];
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s = trimString;
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}
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//rang是指从当前光标处进行替换处理(注意如果执行此句后面返回的是YES会触发didchange事件)
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[textView setText:[textView.text stringByReplacingCharactersInRange:range withString:s]];
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//既然是超出部分截取了，哪一定是最大限制了。
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self.textLengthL.text = [NSString stringWithFormat:@"%d/%ld",0,(long)maxTextCount];
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}
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return NO;
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}
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}
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- (void)textViewDidChange:(UITextView *)textView{
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if (textView.text.length == 0) {
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self.promptL.hidden = NO;
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}else {
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self.promptL.hidden = YES;
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}
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NSLog(@"===DidChangeText");
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UITextRange *selectedRange = [textView markedTextRange];
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//获取高亮部分
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UITextPosition *pos = [textView positionFromPosition:selectedRange.start offset:0];
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//如果在变化中是高亮部分在变，就不要计算字符了
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if (selectedRange && pos) {
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return;
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}
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NSString *nsTextContent = textView.text;
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NSInteger existTextNum = nsTextContent.length;
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if (existTextNum > maxTextCount){
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//截取到最大位置的字符(由于超出截部分在should时被处理了所在这里这了提高效率不再判断)
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NSString *s = [nsTextContent substringToIndex:maxTextCount];
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[textView setText:s];
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}
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//不让显示负数 口口日
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self.textLengthL.text = [NSString stringWithFormat:@"%ld/%d",MAX(0,maxTextCount - existTextNum),maxTextCount];
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}
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- (void)didReceiveMemoryWarning {
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[super didReceiveMemoryWarning];
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// Dispose of any resources that can be recreated.
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}
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/*
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#pragma mark - Navigation
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// In a storyboard-based application, you will often want to do a little preparation before navigation
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- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
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// Get the new view controller using [segue destinationViewController].
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// Pass the selected object to the new view controller.
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}
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*/
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@end
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