UITextView 标签视图

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属性

• 创建

UITextView *textView = [[UITextView alloc] initWithFrame:CGRectMake(20, 20, 400, 500)];

• text————内容

textView.text = @"";

• textColor————字体颜色

textView.textColor = [UIColor redColor];

• font————字体大小

textView.font = [UIFont systemFontOfSize:20];

• backgroundColor————背景颜色

textView.backgroundColor = [UIColor whiteColor];

• returnKeytype————返回键类型

textView.returnKeyType = UIReturnKeyDefault;

• keyboardtype————键盘类型

textView.keyboardType = UIKeyboardTypeDefault;

• autoresizingMask————自适应高度

textView.autoresizingMask = UIViewAutoresizingFlexibleHeight;

• scrollEnabled————是否可以拖动

textView.scrollEnabled = YES;

• editable————是否可以编辑

textView.editable = YES;

• dataDetectortypes————显示数据类型连接模式；

textView.dataDetectorTypes = UIDataDetectorTypeAll;

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delegate————代理

- (BOOL)textViewShouldBeginEditing:(UITextView *)textView; //将要开始编辑
- (BOOL)textViewShouldBeginEditing:(UITextView *)textView; //将要开始编辑
- (BOOL)textViewShouldEndEditing:(UITextView *)textView; ///将要结束编辑
- (void)textViewDidBeginEditing:(UITextView *)textView; //开始编辑
- (void)textViewDidEndEditing:(UITextView *)textView; //结束编辑
- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text; //内容将要发生改变编辑
- (void)textViewDidChange:(UITextView *)textView; //内容发生编辑
- (void)textViewDidChangeSelection:(UITextView *)textView; //焦点发生改变

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拓展

• 回车键推出键盘

-(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text {
    if ([text isEqualToString:@""]) {
        [textView resignFirstResponder];
    }
}

• UITextView自定义选择文字后的菜单

UIMenuItem *menuItem = [[UIMenuItem alloc]initWithTitle:@"分享" action:@selector(changeColor:)];
UIMenuController *menu = [UIMenuController sharedMenuController];
[menu setMenuItems:[NSArray arrayWithObject:menuItem]];
-(BOOL)canPerformAction:(SEL)action withSender:(id)sender {
    if (action == @selector(changeColor:)) {
        if (textView.selectedRange.length > 0) {
            return YES;
        }
        return NO;
    }
}