@property (nonatomic, strong) UITextView *textView; 

// 创建
self.textView = [[UITextView alloc] initWithFrame:self.view.frame]; 

// 设置textview里面的字体颜色 
 self.textView.textColor = [UIColor blackColor]; 
// 设置字体名字和字体大小 
 self.textView.font = [UIFont fontWithName:@"Arial" size:18.0]; 
// 设置代理
 self.textView.delegate = self;  
// 设置它的背景颜色
 self.textView.backgroundColor = [UIColor whiteColor]; 
 self.textView.text = @“hehe”; 
// 返回键的类型 
 self.textView.returnKeyType = UIReturnKeyDefault; 
// 键盘类型 
 self.textView.keyboardType = UIKeyboardTypeDefault; 

// 是否可以拖动  
self.textView.scrollEnabled = YES;

- (void)textViewDidBeginEditing:(UITextView *)textView {  

self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(getOverEditing)];  

}  
- (void)textViewDidEndEditing:(UITextView *)textView {  
  self.navigationItem.rightBarButtonItem = nil; 
} 
- (void)getOverEditing{
 [self.textView resignFirstResponder];  
}

#pragma mark - UITextView Delegate Methods   
-(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
{  
 if ([text isEqualToString:@"\n"]) {  
   [textView resignFirstResponder];  
   return NO;  
  }
 return YES;  
}

   UIToolbar * topView = [[UIToolbar alloc]initWithFrame:CGRectMake(0, 0, 320, 30)]; 
   UIBarButtonItem * cancelButton= [[UIBarButtonItem alloc]initWithTitle:@"Done" style:UIBarButtonItemStyleDone target:self action:@selector(dismissKeyBoard)]; 
   NSArray * buttonsArray = @[cancelButton]; 
   [topView setItems:buttonsArray]; 
   [self.textView setInputAccessoryView:topView]; 
 -(void)dismissKeyBoard 
 { 
   [tvTextView resignFirstResponder]; 
 }

- (void)viewDidLoad
{
  [super viewDidLoad];
  self._textView = [[UITextView alloc] initWithFrame:CGRectMake(10, 100, 300, 200)];
  [self.view addSubview:_textView];  
  UIMenuItem *menuItem = [[UIMenuItem alloc]initWithTitle:@“我是自定义的菜单" action:@selector(didClickCustomMenuAction)]; 
  UIMenuController *menu = [UIMenuController sharedMenuController]; 
  [menu setMenuItems:[NSArray arrayWithObject:menuItem]]; 
  [menuItem release]; 
}

-(BOOL)canPerformAction:(SEL)action withSender:(id)sender 
{ 
  if(action ==@selector(changeColor) || action == @selector(copy:)) 
  { 
    if(_textView.selectedRange.length>0) 
      return YES; 
  } 
  return NO; 
} 
-(void)didClickCustomMenuAction
{
  NSLog(@"%@“,__function__);
}

textView.editable = NO;//不可编辑 
textView.scrollEnabled = NO;//不可滚动 
textView.editable = NO;//不可编辑 
textView.scrollEnabled = NO;//不可滚动 

UIFont *font = [UIFont systemFontOfSize:14.0f]; //指定字符串的大小 
 
[textView setText:content]; 
 
CGSize textSize = [content sizeWithFont:font constrainedToSize:CGSizeMake(200, 2000) lineBreakMode:UILineBreakModeCharacterWrap]; 
 
CGRect articleframe = [articleLabel frame]; 
textView.size.height = textSize.height ; 
 textView.size.width = textSize.width; 
[textView setFrame:articleframe]; 
UIFont *font = [UIFont systemFontOfSize:14.0f]; //指定字符串的大小 
 
[textView setText:content]; 
 
CGSize textSize = [content sizeWithFont:font constrainedToSize:CGSizeMake(200, 2000) lineBreakMode:UILineBreakModeCharacterWrap]; 
 
CGRect articleframe = [articleLabel frame]; 
textView.size.height = textSize.height ; 
 textView.size.width = textSize.width; 
[textView setFrame:articleframe]; 

[self.articleLabel setContentInset:UIEdgeInsetsMake(-10, -5, -15, -5)];//设置UITextView的内边距 
[self.articleLabel setTextAlignment:NSTextAlignmentLeft];//并设置左对齐 
[self.articleLabel setContentInset:UIEdgeInsetsMake(-10, -5, -15, -5)];//设置UITextView的内边距 
[self.articleLabel setTextAlignment:NSTextAlignmentLeft];//并设置左对齐