IDTECH NEO2 - Page 41

6.7 Sample Project Tutorial 31
break;
}
}
• Implement protocol delegate emvTransactionData:() to report EMV transaction results
- (void) emvTransactionData:(IDTEMVData
*
)emvData errorCode:(int)error{
NSLog(@"EMV_RESULT_CODE_V2_response = %2X",error);
[self appendMessageToResults:[NSString stringWithFormat:@"EMV_RESULT_CODE_V2_response = %2X",error]];
if (emvData == nil) {
[self appendMessageToResults:[NSString stringWithFormat:@"EMV TRANSACTION ERROR. Refer to
EMV_RESULT_CODE_V2_response = 0x%2X",error]];
return;
}
if (emvData.resultCodeV2 == EMV_RESULT_CODE_V2_GO_ONLINE) {
[self appendMessageToResults:@"ONLINE REQUEST"];
}
if (emvData.resultCodeV2 == EMV_RESULT_CODE_V2_APPROVED || emvData.resultCodeV2 ==
EMV_RESULT_CODE_V2_APPROVED_OFFLINE ) {
[self appendMessageToResults:@"APPROVED"];
}
if (emvData.resultCodeV2 == EMV_RESULT_CODE_V2_MSR_SUCCESS) {
[self appendMessageToResults:@"MSR Data Captured"];
}
if (emvData.cardType == 0) {
[self appendMessageToResults:@"CONTACT"];
}
if (emvData.cardType == 1) {
[self appendMessageToResults:@"CONTACTLESS"];
}
if (emvData.unencryptedTags != nil) [self appendMessageToResults:[NSString stringWithFormat:@"
Unencrytped Tags: %@", emvData.unencryptedTags.description]];
if (emvData.encryptedTags != nil) [self appendMessageToResults:[NSString stringWithFormat:@"Encrypted
Tags: %@", emvData.encryptedTags.description]];
if (emvData.maskedTags != nil) [self appendMessageToResults:[NSString stringWithFormat:@"Masked Tags:
%@", emvData.maskedTags.description]];
}
• Implement protocol delegate lcdDisplay:() to receive LCD messages, and automatically select 1st menu
item/language when presented with choices. Normal operation would require a choice be made by card
holder.
- (void) lcdDisplay:(int)mode lines:(NSArray
*
)lines{
NSMutableString
*
str = [NSMutableString new];
if (lines != nil) {
for (NSString
*
s in lines) {
[str appendString:s];
[str appendString:@"\n"];
}
}
switch (mode) {
case 0x10:
//clear screen
lcdTextView.text = @"";
break;
case 0x03:
lcdTextView.text = str;
break;
case 0x01:
case 0x02:
case 0x08:{
[[IDT_NEO2 sharedController] emv_callbackResponseLCD:mode selection:(unsigned char)1];;
}
break;
default:
break;
}
}
• Implement the button press methods
-(IBAction) getFirmware:(id)sender{
NSString
*
result;
logTextView.text = @"";
RETURN_CODE rt = [[IDT_NEO2 sharedController] device_getFirmwareVersion:&result];
IDTech iOS SDK Guide for NEO2 #80152802-001