xcode version: 13.3.1
Where can I find interface builder? I want to add a text column.
Post
Replies
Boosts
Views
Activity
What does the circle mean in front of the line (following image)?
How could I remove or create it?
Show-message function got error: Thread 1:EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)
following is the function.
-(void)showMeg:(NSString *)str { dispatch_sync(dispatch_get_main_queue(), ^{ [[[Memo1 textStorage] mutableString]appendString:[NSString stringWithFormat:@"%@", str]]; [Memo1 scrollRangeToVisible:NSMakeRange(Memo1.string.length, 0)];//auto scroll down }); }
I called it in other .m file like the following.
-(void)showMeg:(NSString *)str { dispatch_sync(dispatch_get_main_queue(), ^{ [[[Memo1 textStorage] mutableString]appendString:[NSString stringWithFormat:@"%@", str]]; [Memo1 scrollRangeToVisible:NSMakeRange(Memo1.string.length, 0)];//auto scroll down }); }
I hope the table column show the values after I pressed the button. The following is the IBAction Button.
- (IBAction)buttonTapped:(id)sender
{
//Filling the arrays
Test_name = [NSArray arrayWithObjects:@"test_item_a",@"b",@"c",@"Current",nil];
Min = [NSArray arrayWithObjects:@"0.5",@"0.7",@"0.8",@"100",nil];
Max = [NSArray arrayWithObjects:@"5",@"5",@"9",@"140",nil];
uint16 index = 0;
NSInteger i = 0;
//Show_Datagrid this function move the above values to another 3 arrays table_item,
//table_min, table_max. And the following code is just to verify the value.
[self Show_Datagrid:index];
[self showMeg:@"Button Tapped!2\n"];
[self showMeg:[table_item objectAtIndex:0]];
[self showMeg:@"\n"];
[self showMeg:[table_min objectAtIndex:0]];
[self showMeg:@"\n"];
[self showMeg:Column_test_item.identifier];
//call this function to show the values in tableview.
[self tableView:_tableview objectValueForTableColumn:Column_test_item row:i];
}
following is the function (Column_test_item.identifier is verified correct.):
-(id)tableView:(NSTableView *)aTableView objectValueForTableColumn:(NSTableColumn *)aTableColumn row:(NSInteger)rowIndex
{
if ([aTableColumn.identifier isEqualToString:@"no"])
return [table_no objectAtIndex:rowIndex];
if ([aTableColumn.identifier isEqualToString:@"item"])
return [table_item objectAtIndex:rowIndex];
if ([aTableColumn.identifier isEqualToString:@"min"])
return [table_min objectAtIndex:rowIndex];
if ([aTableColumn.identifier isEqualToString:@"max"])
return [table_max objectAtIndex:rowIndex];
if ([aTableColumn.identifier isEqualToString:@"value"])
return [table_value objectAtIndex:rowIndex];
if ([aTableColumn.identifier isEqualToString:@"status"])
return [table_status objectAtIndex:rowIndex];
return [table_no objectAtIndex:rowIndex];
}
I thnik I called that function in wrong way. Shouldn't I input NSTableColumn parameter Column_test_item directly? Column_test_item is an IBOutlet I connected to the specfic test item column.
And how does this function know which column it want to fill up the value, based on the second parameter I input?
I have a button that starts tests. The items, test no, min and max are added to the table_array and refresh table to show them.
Following code runs without error.
index++;
//if([[Elect objectAtIndex:index]isEqualToString:@"1"])
item++;
temp = [self GetDCVoltage_34970:1];
if(temp >= [[Min objectAtIndex:index]floatValue] && temp <= [[Max objectAtIndex:index]floatValue])
[table_status addObject:@"Pass"];
else
{
PF=false; [table_status addObject:@"Fail"];
err=101+item; [errcode setIntValue:err];
}
[table_no addObject:[NSString stringWithFormat:@"%d",item]];
[self Show_Datagrid:index];
[table_value addObject:[NSString stringWithFormat:@"%.3f",temp]];
[Test_value replaceObjectAtIndex:index withObject:[NSString stringWithFormat:@"%.3f",temp]];
[self refreshTable];
//if (continue_test.state==0 && PF==false)
//return;
return;
After I removed some lines, I only remain the lines that add objects to table_array. Then it shows up error: Thread1: EXE_BAD_INSTRUTION after I pressed button.
[table_no addObject:[NSString stringWithFormat:@"%d",item]];
[self Show_Datagrid:index];
[table_value addObject:[NSString stringWithFormat:@"%.3f",temp]];
[Test_value replaceObjectAtIndex:index withObject:[NSString stringWithFormat:@"%.3f",temp]];
[self refreshTable];
The following is my code to show text in textview. But the error, EXC_BAD_INSTRUCTION, happens while executing it.
How does this error happen and how could I fix it?
dispatch_sync(dispatch_get_main_queue(), ^{
[[[Memo1 textStorage] mutableString]appendString:[NSString stringWithFormat:@"%@", str]];
[Memo1 scrollRangeToVisible:NSMakeRange(Memo1.string.length, 0)];//auto scroll down
});
IDE: Xcode
I have the following code in my program sending this command in terminal. Program hangs up on this line and the debug area shows error "no module named pyvisa_py".
(power_max.py import the pyvisa module)
Then I try this command in terminal directly and the module pyvisa_py, installed already, can be found. The python file can be executed successfully.
How could I make Xcode identify the pyvisa_py module?
[cmd appendString:@“python3 /Users/shared/power_max.py”];
[cmd appendString:[Paremeter_IP stringValue]];
[cmd appendString:@" > /users/Shared/CMW.txt"];
system([cmd UTF8String]);
Language: Objective C
Just like the title, I wanna implement the functionality that can keep user from clicking the exit button by mistake.
And it should show some words together like this:
"Do you want to close the program?"
Button "Yes", Button "No"
Is any method I can use? Thank in advance.
Where should I put this code?And how to make the actions of those buttons in alert window?
NSRunAlertPanel has been used to alert user like the following:
dispatch_sync(dispatch_get_main_queue(), ^{
NSRunAlertPanel(@"Note", @"Please put RED sticker on DUT!", @"OK", nil, nil);
});
It continues the following process after clicking button "OK"
I'd like to enlarger the text size and change the text color, but there is no related parameter in NSRunAlertPanel.
How could I do?