我想在 Xcode 中制作一个弹出菜单。我该怎么做？我希望它看起来漂亮又专业。
以下是使用 UIActionSheet 在 UITextView 中显示弹出菜单以响应长按附件的示例。
- (void)attachmentActionSheet:(UITextView *)textView range:(NSRange)range {
// get the rect for the selected attachment (if its a big image with top not visible the action sheet
// will be positioned above the top limit of the UITextView
// Need to add code to adjust for this.
CGRect attachmentRect = [self frameOfTextRange:range inTextView:textView];
_attachmentMenuSheet = [[UIActionSheet alloc] initWithTitle:nil
delegate:self
cancelButtonTitle:@"Cancel"
destructiveButtonTitle:nil
otherButtonTitles:@"Copy Image", @"Save to Camera Roll", @"Open in Viewer", nil];
// Show the sheet
[_attachmentMenuSheet showFromRect:attachmentRect inView:textView animated:YES];
}
- (void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex {
if (actionSheet == _attachmentMenuSheet) {
//FLOG(@"Button %d", buttonIndex);
switch (buttonIndex) {
case 0:
//FLOG(@" Copy Image");
[self copyImageToPasteBoard:[_attachment image]];
break;
case 1:
//FLOG(@" Save to Camera Roll");
[self saveToCameraRoll:[_attachment image]];
break;
case 2:
//FLOG(@" Open in Viewer");
[self browseImage:[_attachment image]];
break;
default:
break;
}
}
}
这就是它在 iPad 和 iPhone (iOS7) 上的样子
