3
我需要在UITextField上创建自定义清除按钮,所以我使用的是RightView。代码如下:UITextField rightViewMode无法正常工作
UIImage *clearImage = [[UIImage imageNamed:@"search-clear.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(0.0,0.0, 0.0, 0.0)];
UIImageView *clearImageView = [[UIImageView alloc]initWithImage:clearImage];
UIButton *clearButton = [UIButton buttonWithType:UIButtonTypeCustom];
clearButton.frame = clearImageView.frame;
[clearButton setBackgroundImage:clearImage forState:UIControlStateNormal];
clearButton.backgroundColor = [UIColor clearColor];
self.emailTextField.rightViewMode = UITextFieldViewModeWhileEditing;
self.emailTextField.rightView = clearButton;
self.emailTextField.clearButtonMode = UITextFieldViewModeNever;
但是,按钮没有显示在正确的时间。它显示文本字段仅在文本长度为0时的焦点。只要我开始输入,它就会消失。我需要弄清楚如何替换和复制清除按钮,以便它显示字符串何时至少有一个字符。
你能否提供一些截图? – Undo 2013-04-10 17:45:19
http://gyazo.com/fce8bd7995851c8545c5f26a2f61fda4 – JeffN 2013-04-10 17:46:33
http://gyazo.com/50aa6697331dd436faabcededcb2896f – JeffN 2013-04-10 17:46:57