我是这个 mac 应用程序开发的新手。
该应用程序对某些数据运行良好，并且应用程序因少数条目而崩溃。
-(void)presentClientsss
{
[productVendorTextField setStringValue:[NSString stringWithFormat:@"%@", [[popUpVendor selectedItem] title]]];
NSMenuItem *tempMenuItem = [popUpVendor selectedItem];
NSString *selectedItemTitle = [tempMenuItem title];
for (int k = 0; k < [appDelegate.vendorInfoArr count]; k++)
{
VendorInfo *tempCustomerInfoModel = [appDelegate.vendorInfoArr objectAtIndex:k];
if ([tempCustomerInfoModel.vendorName isEqualToString:selectedItemTitle])
{
oldVendorIde = [NSString stringWithFormat:@"%ld", tempCustomerInfoModel.rowId];
NSLog(@"Selected RowID = %@",oldVendorIde);
break;
}
}
}
我将oldVendorIde字符串发送到下一个方法。
- (ItemModel *)itemNodelWithAttributes {
isProductIdExist = NO;
if ([senderInfo isEqualToString:@"nP"]) {
for (int i = 0; i < [appDelegate.itemsArr count]; i++) {
ItemModel *tempIM = [appDelegate.itemsArr objectAtIndex:i];
if ([tempIM.productId isEqualToString:[[productIdTextField stringValue] uppercaseString]]) {
isProductIdExist = YES;
break;
}
}
}
if ([senderInfo isEqualToString:@"eP"]) {
for (int i = 0; i < [appDelegate.itemsArr count]; i++) {
ItemModel *tempIM = [appDelegate.itemsArr objectAtIndex:i];
if (tempIM.itemId == itemIdentity) {
if ([tempIM.productId isEqualToString:[[productIdTextField stringValue] uppercaseString]]) {
isProductIdExist = NO;
}
}
else if ([tempIM.productId isEqualToString:[[productIdTextField stringValue] uppercaseString]]) {
isProductIdExist = YES;
}
}
}
int tempItemExists = [self saveProductImage:[[productIdTextField stringValue] uppercaseString]];
NSLog(@"oldVendorIde =%@",oldVendorIde);
ItemModel *iM = [[ItemModel alloc] initWithItemId:itemIdentity defaultItemMinimumValue:[productMinValueTextField floatValue] staticItemPrice:[productPriceTextField doubleValue] dynamicItemQuantity:[productCurrentStockTextField doubleValue] staticItemDescription:[productDescriptionTextField stringValue] prodId:[[productIdTextField stringValue] uppercaseString] itemVendor:oldVendorIde itemImgExists:tempItemExists stockAvailable:0 itemNotes:[notesTextField string] BarcodeDesc:[BarcodeDescTextView stringValue]];
return iM;
}
在这种方法中oldVendorIde，某些数据同样可以正常工作，有时它会在此时崩溃。
oldVendorIdesometime 在方法中没有任何价值，应用itemNodelWithAttributes程序在那时崩溃。
Sone可以帮我解决这个问题..提前谢谢..