Question

我有以下代码来绘制一个日期选择器（显示在屏幕中间）。它适用于iOS 7，但在iOS 8中却没有显示。只有＆＃34;选择到期日＆＃34;显示在屏幕底部的一个小方框中。

    menu = [[UIActionSheet alloc] initWithTitle:@"Select Expiry Date"
                                       delegate:nil
                              cancelButtonTitle:nil
                         destructiveButtonTitle:nil
                              otherButtonTitles:nil];

    pickerView = [[CDatePickerViewEx alloc] init];
    CGRect pickerRect = pickerView.bounds;
    pickerRect.origin.y = 50;
    pickerRect.size.height = 100;
    pickerView.frame = pickerRect;

    UIButton *startbtn = [UIButton buttonWithType:UIButtonTypeCustom];
    startbtn.frame = CGRectMake(240,12, 60, 25);
    [startbtn setTitle:@"OK" forState:UIControlStateNormal];
    [startbtn setBackgroundImage:[UIImage imageNamed:@"btn"] forState:UIControlStateNormal];
    [startbtn addTarget:self action:@selector(pressedbuttonCancel:) forControlEvents:UIControlEventTouchUpInside];

    [menu addSubview:pickerView];
    [menu addSubview:startbtn];
    [menu showInView:self];
    [menu setFrame:CGRectMake(0,200,320, 260)];

Answer 1

检查您的视图是否启用了AutoLayout，以及大小类。我之前遇到过类似的问题，并且记得用程序化约束修复它。

iOS8绘图矩形未显示

1 个答案: