我正在玩我的应用程序中使用工作表。
我有一个小测试项目设置来找到我的方式。
我确实让这段代码正常工作:
- (IBAction)activateSheet:(id)sender {
if (!_sheet)
[NSBundle loadNibNamed:@"Sheet" owner:self];
[NSApp beginSheet:self.sheet
modalForWindow:[[NSApp delegate] window]
modalDelegate:self
didEndSelector:NULL
contextInfo:NULL];
}
但不推荐使用loadNibNamed方法。
所以我用这个代替:
- (IBAction)activateSheet:(id)sender {
if (!_sheet)
NSLog(@"1");
[[NSBundle mainBundle] loadNibNamed:@"Sheet" owner:self topLevelObjects:nil];
[NSApp beginSheet:self.sheet
modalForWindow: [[NSApp delegate] window]
modalDelegate:self
didEndSelector:NULL
contextInfo:NULL];
}
纸张打开正常。但是,如果我按保存或取消,我会收到EXC_BAD_ACCESS异常:
int main(int argc, const char * argv[])
{
return NSApplicationMain(argc, argv);
}
更新 - 这是一个轻而易举的10.9:
- (IBAction)activateSheet:(id)sender {
if (!_sheet)
[[NSBundle mainBundle] loadNibNamed:@"Sheet" owner:self topLevelObjects:nil];
[[[NSApp delegate] window] beginSheet:self.sheet completionHandler:nil];
}
- (void)endSheet:(NSWindow *)sheetWindow returnCode:(NSModalResponse)returnCode {
[sheetWindow orderOut:self];
}
- (IBAction)save:(id)sender {
[self doSave];
result = 1;
[self endSheet:self.sheet returnCode:result];
}
- (IBAction)cancel:(id)sender {
result = 0;
[self endSheet:self.sheet returnCode:result];
}
答案 0 :(得分:4)
如下所示: -
[NSApp beginSheet:self.sheet
modalForWindow: [[NSApp delegate] window]
modalDelegate:self
didEndSelector:@selector(didEndSheet:returnCode:contextInfo:)
contextInfo:nil];
- (void)didEndSheet:(NSWindow *)sheet returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo
{
if (returnCode == NSAlertDefaultReturn)
{
[sheet orderOut:self];
}
else if (returnCode == NSAlertAlternateReturn)
{
}