UItextField的用法

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修改placehoder的颜色：

[ self.loginnameText setValue:[UIColor colorWithRed:184.f/255 green:214.f/255 blue:225.f/255 alpha:1] forKeyPath:@"_placeholderLabel.textColor"];

    [ self.passwordText setValue:[UIColor colorWithRed:184.f/255 green:214.f/255 blue:225.f/255 alpha:1] forKeyPath:@"_placeholderLabel.textColor"];

改变键盘类型：

self.loginnameText.returnKeyType = UIReturnKeyNext;

    self.passwordText.returnKeyType = UIReturnKeyGo;

给左右两边添加View：

_clearRightButton = [UIButton buttonWithType:UIButtonTypeCustom];

    [_clearRightButton setFrame:CGRectMake(0, 0, 20, 20)];

    [_clearRightButton setBackgroundImage:[UIImage imageNamed:@"cha"] forState:UIControlStateNormal];

    [_clearRightButton addTarget:self action:@selector(clearLoginName) forControlEvents:UIControlEventTouchUpInside];

    _clearRightButtonR = [UIButton buttonWithType:UIButtonTypeCustom];

    [_clearRightButtonR setFrame:CGRectMake(0, 0, 20, 20)];

    [_clearRightButtonR setBackgroundImage:[UIImage imageNamed:@"cha"] forState:UIControlStateNormal];

    [_clearRightButtonR addTarget:self action:@selector(clearPassWord) forControlEvents:UIControlEventTouchUpInside];

    self.loginnameText.rightView =_clearRightButton;

    self.loginnameText.rightViewMode=UITextFieldViewModeWhileEditing;

    self.passwordText.rightView =_clearRightButtonR;

    self.passwordText.rightViewMode=UITextFieldViewModeWhileEditing;

UItextField的用法

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原文地址：http://www.cnblogs.com/wll-winner/p/5058530.html