//
//  ViewController.m
//  UItextView
//
//  Created by City--Online on 15/5/22.
//  Copyright (c) 2015年 XQB. All rights reserved.
//
 
#import "ViewController.h"
 
@interface ViewController ()<UITextViewDelegate>
@property(nonatomic,strong) UITextView *textView;
@end
 
@implementation ViewController
 
- (void)viewDidLoad {
    [super viewDidLoad];
    _textView=[[UITextView alloc]initWithFrame:CGRectMake(10, 100, 200, 100)];
    //設置代理
    _textView.delegate=self;
    //設置文本內容
    _textView.text=@"text啊哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈啊哈哈哈哈啊哈ahahahhahahahah哈哈哈哈哈哈哈哈哈哈哈哈哈哈text啊哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈啊哈哈哈哈啊哈ahahahhahahahah哈哈哈哈哈哈哈哈哈哈哈哈哈哈";
    //設置字體
    _textView.font=[UIFont systemFontOfSize:20];
    //設置字體顏色
    _textView.textColor=[UIColor redColor];
    //設置文本對齊方式
    _textView.textAlignment=NSTextAlignmentRight;
    //設置選擇的文本
    _textView.selectedRange=NSMakeRange(0, _textView.text.length-2);
    //設置可編輯
    _textView.editable=YES;
    //設置可選擇狀態
    _textView.selectable=YES;
    //可以設定使電話號碼、網址、電子郵件和符合格式的日期等文字變為鏈接文字
    _textView.dataDetectorTypes=UIDataDetectorTypePhoneNumber;
    //設置文本是否可編輯
    _textView.allowsEditingTextAttributes=YES;
     
    //設置文本屬性樣式
    NSMutableAttributedString *attributedString=[[NSMutableAttributedString alloc]initWithString:_textView.text];
    [attributedString addAttributes:@{NSForegroundColorAttributeName:[UIColor blueColor],NSFontAttributeName:[UIFont systemFontOfSize:20]} range:NSMakeRange(0, _textView.text.length)];
    _textView.attributedText=attributedString;
    //設置屬性字典
    _textView.typingAttributes=@{NSFontAttributeName:[UIFont systemFontOfSize:30]};
    //設置邊框寬度
    _textView.layer.borderWidth=3.0;
    //設置滾動時反彈
    _textView.bounces=NO;
    //設置彈出視圖
    _textView.inputView=nil;
    //設置輔助視圖
    _textView.inputAccessoryView=nil;
    //設置當插入值時是否清空原有內容  selectedRange范圍的
    _textView.clearsOnInsertion=YES;
    //設置鏈接樣式
    _textView.linkTextAttributes=@{NSForegroundColorAttributeName:[UIColor redColor]};
     
    [self.view addSubview:_textView];
    //滾動到指定的Range
//    [_textView scrollRangeToVisible:NSMakeRange(_textView.text.length-10, _textView.text.length)];
     
//    _textView.selectedRange=NSMakeRange(_textView.text.length-10, _textView.text.length);
     
}
// 在TextView獲取焦點之前執行
- (BOOL)textViewShouldBeginEditing:(UITextView *)textView
{
    NSLog(@"textViewShouldBeginEditing");
    return YES;
}
//在TextView離開焦點之后執行
- (BOOL)textViewShouldEndEditing:(UITextView *)textView
{
    NSLog(@"textViewShouldEndEditing");
    return YES;
}
//在TextView開始編輯時獲得焦點
- (void)textViewDidBeginEditing:(UITextView *)textView
{
    NSLog(@"textViewDidBeginEditing");
}
//在TextView結束編輯時
- (void)textViewDidEndEditing:(UITextView *)textView
{
    NSLog(@"textViewDidEndEditing");
}
//每次用戶通過鍵盤輸入字符時，在字符顯示在text view之 前，textView:shouldChangeCharactersInRange:replacementString方法會被調用。這個方法中可以 方便的定位測試用戶輸入的字符，并且限制用戶輸入特定的字符
- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
{
    NSCharacterSet *doneButtonCharacterSet = [NSCharacterSet newlineCharacterSet];
    NSRange replacementTextRange = [text rangeOfCharacterFromSet:doneButtonCharacterSet];
    NSUInteger location = replacementTextRange.location;
    if (textView.text.length + text.length > 140){
        if (location != NSNotFound){
            [textView resignFirstResponder];
        }
        return NO;
    }
    else if (location != NSNotFound){
        [textView resignFirstResponder];
        return NO;
    }  
    return YES;
}
 
- (void)textViewDidChange:(UITextView *)textView
{
    NSLog(@"textViewDidChange");
}
//光標位置改變
- (void)textViewDidChangeSelection:(UITextView *)textView
{
     NSLog(@"textViewDidChangeSelection");
}
 
- (BOOL)textView:(UITextView *)textView shouldInteractWithURL:(NSURL *)URL inRange:(NSRange)characterRange
{
    NSLog(@"shouldInteractWithURL");
 
    return YES;
}
- (BOOL)textView:(UITextView *)textView shouldInteractWithTextAttachment:(NSTextAttachment *)textAttachment inRange:(NSRange)characterRange
{
    NSLog(@"shouldInteractWithTextAttachment");
    return YES;
}
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    [self.view endEditing:YES];
    [super touchesBegan:touches withEvent:event];
    NSLog(@"touchesBegan:withEvent");
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}
 
@end

UITextView有幾個IOS7的屬性沒寫