防止硬件(蓝牙)键盘覆盖iOS 8中的inputView

Question

我有一个UITextField使用自定义UIPickerView其inputView用户限制在几个选项,功能类似于一个下拉列表.当与通过蓝牙连接的硬件键盘一起使用时,硬件键盘会覆盖(并隐藏)我的inputView.inputAccessoryView然而,相关的遗骸.按下我的硬件键盘上的"键盘"按钮(通常会显示默认的屏幕键盘为香草UITextField),一切都按预期工作.(我的意思是我inputView再次可见.)在iOS的早期版本(即7及以下版本)中,inputView调用时始终可见.

我已经暂时通过设置解决了这个问题UITextField的UIKeyboardType,从UIKeyboardTypeDefault到UIKeyboardTypeTwitter,但在硬件键盘不被识别为默认为该特定这只会工作UIKeyboardType.代码是pickerTextField.keyboardType = UIKeyboardTypeTwitter;(参见下面代码的大约2/3.)经过进一步测试,这个部分解决方案并不像看起来那么有用.

如何inputView在使用硬件键盘时正确显示我的所有情况？

相关代码段:

-(int)setUpPickerWheelAtXLoc:(int)xLoc andYLoc:(int)yLoc {

    int qwidth = width - (xLoc - FORMBORDERLEFT);

    // Set up inputView (pickerView) to replace the keyboard
    self.pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(xLoc, yLoc, qwidth, height)];
    self.pickerView.delegate = self;
    self.pickerView.dataSource = self;

    self.pickerTextField = [[UITextField alloc] initWithFrame:CGRectMake(xLoc, yLoc, qwidth, 32)];
    self.pickerTextField.delegate = self;

    pickerTextField.borderStyle = UITextBorderStyleRoundedRect;
    pickerTextField.layer.borderWidth = 0.3f;
    pickerTextField.layer.borderColor = [[UIColor blackColor] CGColor];
    pickerTextField.textColor = [UIColor blackColor];
    pickerTextField.font = [UIFont systemFontOfSize:XXLARGEFONTSIZE];
    pickerTextField.placeholder = @"Tap to choose from list...";

    // Add pickerView as inputView
    pickerTextField.inputView = self.pickerView;

    pickerTextField.keyboardType = UIKeyboardTypeTwitter; // Suggested temporary solution

    // Setup inputAccessoryView (Done button)
    UIButton *doneButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [doneButton addTarget:self action:@selector(pickerDoneButtonPressed) forControlEvents:UIControlEventTouchUpInside];
    [doneButton setTitle:@"Done" forState:UIControlStateNormal];
    doneButton.titleLabel.font = [UIFont systemFontOfSize:XXLARGEFONTSIZE];
    doneButton.frame = CGRectMake(0,0,100,44);
    [doneButton setContentHorizontalAlignment:UIControlContentHorizontalAlignmentRight];
    doneButton.contentEdgeInsets = UIEdgeInsetsMake(0,0,0,20);
    doneButton.backgroundColor = [UIColor lightGrayColor];

    pickerTextField.inputAccessoryView = doneButton;
    return xLoc + qwidth;
}

附加信息:在检查了其他几个地方之后,我已经确认这种情况也发生在至少一个Apple产品中.(在8.0.2中的iPhone 6上的"创建新的Apple ID"应用程序/页面中.查看月和日的出生日期选择浏览量.)

Answer 1

Apple 在 iOS 8.1 更新中修复了该问题。