在iOS8的UIActionSheet中添加UIPickerView不起作用
在iOS8的UIActionSheet中添加UIPickerView不起作用
提问于 2014-06-23 20:51:18
我正在将UIPickerView添加到UIActionsheet中，但它在ios 7中工作得很好，但在ios 8中却不能工作。请帮我解决这个问题。
在这里我附上了截图。
谢谢
为此，我使用了以下代码。
UIActionSheet *actionSheet;
NSString *pickerType;
- (void)createActionSheet {
if (actionSheet == nil) {
// setup actionsheet to contain the UIPicker
actionSheet = [[UIActionSheet alloc] initWithTitle:@"Please select" delegate:self cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:nil];
actionSheet.backgroundColor = [UIColor clearColor];
UIToolbar *pickerToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 320, 40)];
pickerToolbar.barStyle = UIBarStyleBlackOpaque;
[pickerToolbar sizeToFit];
UIImageView *imageObj = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 320, 40)];
imageObj.image = [UIImage imageNamed:@"header.png"];
[pickerToolbar addSubview:imageObj];
UIButton *cancelBtn = [UIButton buttonWithType:UIButtonTypeCustom];
[cancelBtn addTarget:self action:@selector(pickerCancel:)forControlEvents:UIControlEventTouchDown];
// [cancelBtn setImage:[UIImage imageNamed:@"btnInviteCancel.png"] forState:UIControlStateNormal];
[cancelBtn setTitle:@"Cancel" forState:UIControlStateNormal];
cancelBtn.frame = CGRectMake(7.0, 7.0, 65.0, 25.0);
[pickerToolbar addSubview:cancelBtn];
UIButton *doneBtn = [UIButton buttonWithType:UIButtonTypeCustom];
[doneBtn addTarget:self action:@selector(pickerDone:)forControlEvents:UIControlEventTouchDown];
//[doneBtn setImage:[UIImage imageNamed:@"btnInviteDone.png"] forState:UIControlStateNormal];
[doneBtn setTitle:@"Done" forState:UIControlStateNormal];
doneBtn.frame = CGRectMake(258.0, 7.0, 55.0, 25.0);
[pickerToolbar addSubview:doneBtn];
[actionSheet addSubview:pickerToolbar];
[pickerToolbar release];
UIPickerView *chPicker = [[UIPickerView alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, 200.0)];
chPicker.dataSource = self;
chPicker.delegate = self;
chPicker.showsSelectionIndicator = YES;
[chPicker selectRow:0 inComponent:0 animated:YES];
[actionSheet addSubview:chPicker];
[chPicker release];
[actionSheet showInView:self.view];
[actionSheet setBounds:CGRectMake(0,0,320, 464)];
}
}回答 4
Stack Overflow用户
发布于 2014-09-29 16:25:05
我也发现了这个问题，我有一个解决方案，希望能对你有所帮助。
您可以在此处下载示例代码：https://www.dropbox.com/s/yrzq3hg66pjwjwn/UIPickerViewForIos8.zip?dl=0
@interface ViewController : UIViewController <UIPickerViewDataSource, UIPickerViewDelegate>{
UIView *maskView;
UIPickerView *_providerPickerView;
UIToolbar *_providerToolbar;
}
- (void) createPickerView {
maskView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.height)];
[maskView setBackgroundColor:[UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.5]];
[self.view addSubview:maskView];
_providerToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, self.view.bounds.size.height - 344, self.view.bounds.size.width, 44)];
UIBarButtonItem *done = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(dismissActionSheet:)];
_providerToolbar.items = @[[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil], done];
_providerToolbar.barStyle = UIBarStyleBlackOpaque;
[self.view addSubview:_providerToolbar];
_providerPickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0, self.view.bounds.size.height - 300, 0, 0)];
_providerPickerView.backgroundColor = [UIColor colorWithRed:1.0 green:1.0 blue:1.0 alpha:0.5];
_providerPickerView.showsSelectionIndicator = YES;
_providerPickerView.dataSource = self;
_providerPickerView.delegate = self;
[self.view addSubview:_providerPickerView];
}
- (void)dismissActionSheet:(id)sender{
[maskView removeFromSuperview];
[_providerPickerView removeFromSuperview];
[_providerToolbar removeFromSuperview];
}Stack Overflow用户
发布于 2014-09-23 17:50:39
这不会显示任何内容，因为ios8 https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIActionSheet_Class/index.html已弃用uiactionsheet和uiactionsheetdelegate
你需要在iOS8中使用UIAlertController。
Stack Overflow用户
发布于 2014-09-25 15:30:51
actionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self
cancelButtonTitle:nil
destructiveButtonTitle:nil
otherButtonTitles:nil];页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/24366437
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