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给UITextField设置头或尾空白

有时候,我们需要在UITextField的头尾加入一些空白,如下图所示:

其中,黄色和红色部分代表空白。

实现起来,比较简单,只需要设置UITextField的leftView、leftViewMode和rightView、rightViewMode即可,代码如下:

假设现有UItextField * txtField;

    UIView * rView =[[UIView alloc] initWithFrame:CGRectMake(txtField.frame.size.width - 10, 0, 10, txtField.frame.size.height)];    rView.backgroundColor = [UIColor redColor];    txtField.rightView = rView;    txtField.rightViewMode = UITextFieldViewModeAlways;
    UIView * view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, txtField.frame.size.height)];    view.backgroundColor = [UIColor yellowColor];    txtField.leftViewMode = UITextFieldViewModeAlways;    txtField.leftView = view;