#import <QuartzCore/QuartzCore.h>
textView.layer.borderColor = [UIColor grayColor].CGColor;
textView.layer.borderWidth =1.0;
textView.layer.cornerRadius =5.0;
建立一个UITextView,默认启动键盘,并将光标定位到首位置,因为UITextFiled类没有此功能,所以改用UItextView. 代码如下: Cpp代码 UITextView *m_contentTextField = [[[UITextView alloc] init] autorelease]; m_contentTextField = [[[UITextView alloc] init] autorelease]; m_contentTextField.frame = CGRectMake(0, 0, 320, 90) ; m_contentTextField.backgroundColor = [UIColor whiteColor] ; m_contentTextField.font = [UIFont systemFontOfSize:14]; m_contentTextField.delegate = self ; 设置此UITextView为第一响应者,即默认打开键盘。 Cpp代码 [m_contentTextField becomeFirstResponder]; 当UITextView中含有文字时,系统默认将光标定位到最后的位置,下面的语句将光标定位到首位置。 Cpp代码 m_contentTextField.selectedRange = NSMakeRange(0,0); 参考文献:https://discussions.apple.com/message/12209784#12209784
总体来说个性化定制UITextView中的内容有两种方法: 1,从文件中读取内容到UITextView,这个个人感觉使用rtfd和rtf格式文件效果非常好。 2,使用NSAttributeString进行定制 具体方法如下: NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc]init]; paragraphStyle.lineHeightMultiple = 20.f; paragraphStyle.maximumLineHeight = 25.f; paragraphStyle.minimumLineHeight = 15.f; paragraphStyle.firstLineHeadIndent = 20.f; paragraphStyle.alignment = NSTextAlignmentJustified; NSDictionary *attributes = @{ NSFontAttributeName:[UIFont systemFontOfSize:14], NSParagraphStyleAttributeName:paragraphStyle, NSForegroundColorAttributeName:[UIColor colorWithRed:76./255. green:75./255. blue:71./255. alpha:1] }; textView.attributedText = [[NSAttributedString alloc]initWithString:content attributes:attributes]; 当然也可以初始化一个NSMutableAttributedString,然后向里面添加文字样式,最后将它赋给textView的AttributedText即可 NSMutableAttributedString *atr = [[NSMutableAttributedString alloc]initWithString:detail]; [atr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:14] range:NSMakeRange(0, detail.length)]; textView.attributedText = atr; 另外,对于textview中的链接样式,同样也可以定制 NSDictionary *linkAttributes = @{NSForegroundColorAttributeName: [UIColor blueColor], NSUnderlineColorAttributeName: [UIColor blackColor], NSUnderlineStyleAttributeName: @(NSUnderlinePatternDash)}; self.linkTextAttributes = linkAttributes; 这里只是个简单的例子,具体还有很多属性可以自行参考头文件
从XML或者json中读取出来的"\n",系统认为是字符串,会默认转换为"\\n",所以当显示的时候就是字符串了,要想显示换行,需要自己手动将"\\n"转换为"\n",这样才能换行.
NSString*b =[a stringByReplacingOccurrencesOfString:@"\\n" withString:@"\n"];
设置显示内容的padding
textView.textContainerInset = UIEdgeInsetsMake(0, 10, 0, 10);
效果是右侧的滚动条距离内容10像素
参考:How to set margins (padding) in UITextView?