iOS中改变uiTextField的光标起始位置

继承UITextField重写下面方法可实现：

#import "QLCustomTextField.h"

@implementation QLCustomTextField

// 控制placeHolder的位置，左右缩20，但是光标位置不变

/*

-(CGRect)placeholderRectForBounds:(CGRect)bounds

{

CGRect inset = CGRectMake(bounds.origin.x+100, bounds.origin.y, bounds.size.width -10, bounds.size.height);

return inset;

}

*/

// 修改文本展示区域，一般跟editingRectForBounds一起重写

- (CGRect)textRectForBounds:(CGRect)bounds

{

CGRect inset = CGRectMake(bounds.origin.x+20, bounds.origin.y, bounds.size.width-25, bounds.size.height);//更好理解些

return inset;

}

// 重写来编辑区域，可以改变光标起始位置，以及光标最右到什么地方，placeHolder的位置也会改变

-(CGRect)editingRectForBounds:(CGRect)bounds

{

CGRect inset = CGRectMake(bounds.origin.x+20, bounds.origin.y, bounds.size.width-25, bounds.size.height);//更好理解些

return inset;

}

/*

// Only override drawRect: if you perform custom drawing.

// An empty implementation adversely affects performance during animation.

- (void)drawRect:(CGRect)rect {

// Drawing code

}

*/

@end