【发布时间】:2018-11-06 15:34:32
【问题描述】:
当我尝试通过 Xcode 运行我的 react 本机项目时,我收到 Use of undeclared identifier 'AIRGoogleMapOverlay' 错误。我实际上是在尝试在我的 iPhone 上打开该应用程序,而这正是我遇到此错误的时候。如果我简单地说 react-native run-ios,它会在模拟器上构建并启动应用程序。我正在尝试提取使用模拟器无法完成的当前设备位置。
该错误发生在 react-native-google-maps 包中的 AirGoogleMapOverlayManager.m 文件中。
AIRGoogleMapOverlay.h
#ifdef HAVE_GOOGLE_MAPS
#import <Foundation/Foundation.h>
#import <GoogleMaps/GoogleMaps.h>
#import <React/RCTBridge.h>
#import "AIRMapCoordinate.h"
#import "AIRGoogleMap.h"
@interface AIRGoogleMapOverlay : UIView
@property (nonatomic, strong) GMSGroundOverlay *overlay;
@property (nonatomic, copy) NSString *imageSrc;
@property (nonatomic, strong, readonly) UIImage *overlayImage;
@property (nonatomic, copy) NSArray *boundsRect;
@property (nonatomic, readonly) GMSCoordinateBounds *overlayBounds;
@property (nonatomic, weak) RCTBridge *bridge;
@end
#endif
AIRGoogleMapOverlay.m
#ifdef HAVE_GOOGLE_MAPS
#import "AIRGoogleMapOverlay.h"
#import <React/RCTEventDispatcher.h>
#import <React/RCTImageLoader.h>
#import <React/RCTUtils.h>
#import <React/UIView+React.h>
@interface AIRGoogleMapOverlay()
@property (nonatomic, strong, readwrite) UIImage *overlayImage;
@property (nonatomic, readwrite) GMSCoordinateBounds *overlayBounds;
@end
@implementation AIRGoogleMapOverlay {
RCTImageLoaderCancellationBlock _reloadImageCancellationBlock;
CLLocationCoordinate2D _southWest;
CLLocationCoordinate2D _northEast;
}
- (instancetype)init
{
if ((self = [super init])) {
_overlay = [[GMSGroundOverlay alloc] init];
}
return self;
}
- (void)setImageSrc:(NSString *)imageSrc
{
NSLog(@">>> SET IMAGESRC: %@", imageSrc);
_imageSrc = imageSrc;
if (_reloadImageCancellationBlock) {
_reloadImageCancellationBlock();
_reloadImageCancellationBlock = nil;
}
__weak typeof(self) weakSelf = self;
_reloadImageCancellationBlock = [_bridge.imageLoader loadImageWithURLRequest:[RCTConvert NSURLRequest:_imageSrc]
size:weakSelf.bounds.size
scale:RCTScreenScale()
clipped:YES
resizeMode:RCTResizeModeCenter
progressBlock:nil
partialLoadBlock:nil
completionBlock:^(NSError *error, UIImage *image) {
if (error) {
NSLog(@"%@", error);
}
dispatch_async(dispatch_get_main_queue(), ^{
NSLog(@">>> IMAGE: %@", image);
weakSelf.overlayImage = image;
weakSelf.overlay.icon = image;
});
}];
}
- (void)setBoundsRect:(NSArray *)boundsRect
{
_boundsRect = boundsRect;
_southWest = CLLocationCoordinate2DMake([boundsRect[1][0] doubleValue], [boundsRect[0][1] doubleValue]);
_northEast = CLLocationCoordinate2DMake([boundsRect[0][0] doubleValue], [boundsRect[1][1] doubleValue]);
_overlayBounds = [[GMSCoordinateBounds alloc] initWithCoordinate:_southWest
coordinate:_northEast];
_overlay.bounds = _overlayBounds;
}
@end
#endif
这是我在 AIRGoogleMapOverlayManager 中得到错误的地方
#import "AIRGoogleMapOverlayManager.h"
#import "AIRGoogleMapOverlay.h"
@interface AIRGoogleMapOverlayManager()
@end
@implementation AIRGoogleMapOverlayManager
- (UIView *)view
{
AIRGoogleMapOverlay *overlay = [AIRGoogleMapOverlay new]; ERROR-Use of undeclared identifier 'AIRGoogleMApOverlay'
overlay.bridge = self.bridge; ERROR-Use of undeclared identifier 'overlay'
return overlay; ERROR-Use of undeclared identifier 'overlay'
return 0;
}
RCT_EXPORT_MODULE()
RCT_REMAP_VIEW_PROPERTY(bounds, boundsRect, NSArray)
RCT_REMAP_VIEW_PROPERTY(image, imageSrc, NSString)
@end
我知道解决第一个错误将消除所有 3 个错误。我也在运行 xcworkspace,而不是 xcodeproj。
感谢任何帮助!
【问题讨论】:
标签: ios xcode google-maps react-native undeclared-identifier