Xcodeでプロジェクトを分析すると、いくつかの奇妙なエラーが発生します。このコードはすべて、を作成するために使用できる配列を作成する単一のメソッドの一部ですMKAnnotations。これがコードの氾濫である場合は申し訳ありませんが、無関係な部分をコメントアウトするために最善を尽くしました。いくつかの観点から、スニペットに加えてメソッド全体を含めました。ありがとうございました！
- (void)addLines {
/*
NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
// Create region and span variables
MKCoordinateSpan span;
MKCoordinateRegion region;
NSArray* arrayOuter = [defaults objectForKey:@"mapSaveDataKey"];
NSData* data = [arrayOuter objectAtIndex:[[defaults objectForKey:@"currentMap"] intValue]];
NSArray* arrayOne = [NSKeyedUnarchiver unarchiveObjectWithData:data];
if (arrayOne.count == 0)
[self returns:nil];
*/
NSArray* overlayLat = [arrayOne objectAtIndex:1];
double lats[overlayLat.count];
NSArray* overlayLong = [arrayOne objectAtIndex:2];
double longs[overlayLong.count];
NSArray* annotationLat = [arrayOne objectAtIndex:8];
double annotationLats[annotationLat.count];
NSArray* annotationLong = [arrayOne objectAtIndex:9];
double annotationsLongs[annotationLong.count];
/*
CLLocationCoordinate2D startLocation = CLLocationCoordinate2DMake([[overlayLat objectAtIndex:0] doubleValue], [[overlayLong objectAtIndex:0] doubleValue]);
CLLocationCoordinate2D finishLocation = CLLocationCoordinate2DMake([[overlayLat objectAtIndex:[overlayLat count] - 1] doubleValue], [[overlayLong objectAtIndex:[overlayLong count] - 1] doubleValue]);
NSString* string1 = [[[NSString alloc] initWithFormat:@"Lat: %.3f, Long: %.3f", [[overlayLat objectAtIndex:0] doubleValue], [[overlayLong objectAtIndex:0] doubleValue]] autorelease];
NSString* string2 = [[[NSString alloc] initWithFormat:@"Lat: %.3f, Long: %.3f", [[overlayLat objectAtIndex:([overlayLat count] - 1)] doubleValue], [[overlayLong objectAtIndex:([overlayLong count] - 1)] doubleValue]] autorelease];
LocationAnnotation* startAnnotation = [[LocationAnnotation alloc] initWithCoordinate:startLocation title:@"Start" subtitle:string1];
LocationAnnotation* finishAnnotation = [[LocationAnnotation alloc] initWithCoordinate:finishLocation title:@"Finish" subtitle:string2];
*/
for (int iii = 0; iii < overlayLat.count; iii++) {
NSNumber* a = (NSNumber*)[overlayLat objectAtIndex:iii];
lats[iii] = [a doubleValue];
}
for (int iii = 0; iii < overlayLong.count; iii++) {
NSNumber* a = (NSNumber*)[overlayLong objectAtIndex:iii];
longs[iii] = [a doubleValue];
}
for (int iii = 0; iii < annotationLong.count; iii++) {
NSNumber* a = (NSNumber*)[annotationLong objectAtIndex:iii];
annotationsLongs[iii] = [a doubleValue];
}
for (int iii = 0; iii < annotationLat.count; iii++) {
NSNumber* a = (NSNumber*)[annotationLat objectAtIndex:iii];
annotationLats[iii] = [a doubleValue];
}
int sizeLats = 0;
for (int iii = 0; iii < overlayLat.count; iii++)
if (lats[iii] != 0)
sizeLats++;
CLLocationCoordinate2D coords[sizeLats];
for (int iii = 0; iii < sizeLats; iii++) {
if (lats[iii] != 0 && longs[iii] != 0) {
coords[iii].latitude = lats[iii];
coords[iii].longitude = longs[iii];
} else {
coords[iii].latitude = coords[iii - 1].latitude;
coords[iii].longitude = coords[iii - 1].longitude;
}
}
/*
// Give variables value
span = MKCoordinateSpanMake(.05, .05);
region = MKCoordinateRegionMake(coords[0], span);
MKPolyline* line = [MKPolyline polylineWithCoordinates:coords count:sizeLats];
[mapView addOverlay:line];
[mapView addAnnotations:[NSArray arrayWithObjects:startAnnotation, finishAnnotation, nil]];
[mapView selectAnnotation:startAnnotation animated:YES];
*/
for (int iii = 0; iii < annotationLong.count; iii++) {
CLLocationCoordinate2D coord = CLLocationCoordinate2DMake(annotationLats[iii], annotationsLongs[iii]);
/*
NSString* subtitle = [[[NSString alloc] initWithFormat:@"Lat: %.3f, Long: %.3f", coord.latitude, coord.longitude] autorelease];
NSString* title = [[[NSString alloc] initWithFormat:@"Stop %i", (iii + 1)] autorelease];
LocationAnnotation* a = [[LocationAnnotation alloc] initWithCoordinate:coord title:title subtitle:subtitle];
CLLocation* c = [[CLLocation alloc] initWithCoordinate:coord altitude:0 horizontalAccuracy:0 verticalAccuracy:0 course:0 speed:0 timestamp:0];
CLLocation* d = [[CLLocation alloc] initWithCoordinate:CLLocationCoordinate2DMake(finishAnnotation.coordinate.latitude, finishAnnotation.coordinate.longitude) altitude:0 horizontalAccuracy:0 verticalAccuracy:0 course:0 speed:0 timestamp:0];
if ([c distanceFromLocation:d] > 20)
[mapView addAnnotation:a];
[c release];
[d release];
[a release];
*/
}
/*
[mapView setRegion:region animated:YES];
[startAnnotation release];
[finishAnnotation release];
*/
}
初め：
int sizeLats = 0;
for(int iii = 0; iii < overlayLat.count; iii++)
if(lats[iii] != 0) //"The left operand of '!=' is a garbage value"
sizeLats++;
Xcodeがそのようなシェナニガンで私をどのように非難するのですか？
2番：
CLLocationCoordinate2D coords[sizeLats]; //"Declared variable-length array (VLA) has zero size"
第3：
for (int iii = 0; iii < sizeLats; iii++) {
if (lats[iii] != 0 && longs[iii] != 0) { // "The left operand of '!=' is a garbage value"
coords[iii].latitude = lats[iii];
coords[iii].longitude = longs[iii];
} else {
coords[iii].latitude = coords[iii - 1].latitude; // "Assigned value is garbage or undefined"
coords[iii].longitude = coords[iii - 1].longitude;
}
}
第4：
CLLocationCoordinate2D coord = CLLocationCoordinate2DMake(annotationLats[iii], annotationsLongs[iii]); // "Function call argument is an uninitialized value"
ただし、その配列を初期化したばかりですか？とがゼロの長さで初期化された場合annotationLats、初期化されない可能性があることを理解しています。annotationLongs
これらの警告は重要ですか？これらの警告なしにプログラムが期待どおりに実行された場合、それらを安全に無視できますか？Xcodeを無視するのは良い考えではないように感じます—それはかなりインテリジェントです。