ios - 为以编程方式绘制的 View 设置颜色

Question

我正在修复我的 UITextView 以使其不显示在键盘下方，而是将其调整为正确的约束。这可能是一个愚蠢的问题，除了这个愚蠢的问题之外，很可能有一个简单的解决方法，但我需要将当前为黑色的 View 着色为 whiteColor - 看来我是在正确的代码行上消隐以执行此操作。我已经在 Stack Overflow 和 Google 上搜索了一段时间，但我没有找到一行不返回错误的代码。

键盘后面的黑色矩形。

- (void)keyboardDidShow:(NSNotification *)aNotification {
    NSDictionary* info = [aNotification userInfo];
    CGRect kbRect = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];
    kbRect = [[self view] convertRect:kbRect fromView:nil];
    CGSize kbSize = kbRect.size;
    CGRect aRect = self.view.frame;

    /* This should work, but doesn't quite qet the job done */
    //    UIEdgeInsets insets = self.textView.contentInset;
    //    insets.bottom = kbSize.height;
    //    self.textView.contentInset = insets;
    //
    //    insets = self.textView.scrollIndicatorInsets;
    //    insets.bottom = kbSize.height;
    //    self.textView.scrollIndicatorInsets = insets;

    /* Instead, we just adjust the frame of the uitextview */
    aRect.size.height -= kbSize.height + VERTICAL_KEYRBOARD_MARGIN;
    self.companyTextField.frame = aRect;

    // If active text field is hidden by keyboard, scroll it so it's visible
    // Your application might not need or want this behavior.
    if (!CGRectContainsPoint(aRect, self.companyTextField.frame.origin) ) {
        CGPoint scrollPoint = CGPointMake(0.0, self.companyTextField.frame.origin.y - kbSize.height);
        [self.companyTextField setContentOffset:scrollPoint animated:YES];
    }
}

Answer 1

假设 self.companyTextField 是您所说的:

self.companyTextField.backgroundColor = [UIColor whiteColor];

如果您谈论的是主视图:

self.view.backgroundColor = [UIColor whiteColor];