React-Native中的Google地图(iOS)
问题描述:
我的目标是在React Native中显示Google地图。我看过一些使用带有UIMapView或MapBox地图的Google Maps SDK的例子,但这不是我正在寻找的。React-Native中的Google地图(iOS)
我目前没有错误。这里是我的代码:
index.ios.js
'use strict';
import React, {
AppRegistry,
Component,
StyleSheet,
Text,
View
} from 'react-native';
import GoogleMaps from './ios/GoogleMaps.js';
class RCTGoogleMaps extends Component {
constructor(props) {
super(props);
}
render() {
return (
<View style={styles.container}>
<GoogleMaps style={styles.map}/>
</View>
);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#F5FCFF'
},
map: {
height: 500,
width: 300,
marginLeft: 50
}
});
AppRegistry.registerComponent('RCTGoogleMaps',() => RCTGoogleMaps);
IOS/GoogleMaps.js
IOS/RCTGoogleMapViewManager.h
#ifndef RCTGoogleMapViewManager_h
#define RCTGoogleMapViewManager_h
#import <Foundation/Foundation.h>
#import "RCTViewManager.h"
#import <UIKit/UIKit.h>
@interface RCTGoogleMapViewManager : RCTViewManager<UITextViewDelegate>
@end
#endif /* RCTGoogleMapViewManager_h */
IOS/GoogleMapViewManager.m
#import <Foundation/Foundation.h>
#import "RCTGoogleMapViewManager.h"
#import "RCTBridge.h"
#import "RCTEventDispatcher.h"
#import "UIView+React.h"
@import GoogleMaps;
@implementation RCTGoogleMapViewManager
RCT_EXPORT_MODULE()
- (UIView *)view {
GMSMapView *mapView_;
// Create a GMSCameraPosition that tells the map to display the
// coordinate -33.86,151.20 at zoom level 6.
GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.86
longitude:151.20
zoom:6];
mapView_ = [GMSMapView mapWithFrame:CGRectZero camera:camera];
mapView_.myLocationEnabled = YES;
UIView *newView_ = mapView_;
//self.view = mapView_;
// Creates a marker in the center of the map.
GMSMarker *marker = [[GMSMarker alloc] init];
marker.position = CLLocationCoordinate2DMake(-33.86, 151.20);
marker.title = @"Sydney";
marker.snippet = @"Australia";
marker.map = mapView_;
return newView_;
}
RCT_EXPORT_VIEW_PROPERTY(text, NSString)
@end
组件周围有一个红色边框,但内部没有显示。我是React Native新手,而且是StackOverflow的新手。不幸的是,他们不会让我上传截图,直到我有更多的声望。
有一条线我怀疑要关闭,但不知道要改变它。 RCTGoogleMapViewManager.h中的第8行说:“@interface RCTGoogleMapViewManager:RCTViewManager”。我已经使用UITextViewDelegates用于其他自定义组件,但是此映射不是TextView。可能是这样,但我不知道。
任何帮助都将不胜感激。
答
如果组件周围有红色边框,但内部没有显示,则表示您没有正确链接库。
查阅这里的文档: http://facebook.github.io/react-native/releases/0.25/docs/linking-libraries-ios.html