Question

我有一份工作<TextInput>：

<TextInput
      placeholder="Location"
      value={props.locationInput.toString()}
      onChangeText={location => props.updateLocationInput(location)}
    />

props.locationInput最初是''但是应用程序启动后，会激活几个异步函数并获取用户填充props.locationInput的当前位置（在redux存储中）。这意味着上面的<TextInput>会在用户到达时显示用户的当前位置。我想基本上完全如上所述，但是使用react-native-google-places-autocomplete

react-native-google-places-autocomplete使用props.locationInput值初始化。它具有getDefaultValue属性，例如getDefaultValue={() => props.locationInput.toString()}，但是当props.locationInput更改时它不会改变，因此它永远不会显示用户当前位置，因为它在初始化时不会设置。 react-native-google-places-autocomplete更改时如何更新props.locationInput？

可能以为我可能需要在用户当前位置进入之前不呈现它，但这确实很混乱。

编辑：还考虑不使用插件，而是调用谷歌放置API。

Answer 1

在GooglePlaceAutocomplete组件上，您必须使用onPress事件来获取值。这是一个例子：

<GooglePlacesAutocomplete
                placeholder='Event Location'
                minLength={2} // minimum length of text to search
                autoFocus={false}
                // Can be left out for default return key https://facebook.github.io/react-native/docs/textinput.html#returnkeytype
                listViewDisplayed='auto'    // true/false/undefined
                fetchDetails={true}
                renderDescription={row => row.description} // custom description render
                onPress={(data, details = null) => {
            // 'details' is provided when fetchDetails = true
            this.setState(
              {
                address: data.description, // selected address
                coordinates: `${details.geometry.location.lat},${details.geometry.location.lng}` // selected coordinates
              }
            );
          }}
                textInputProps={{
                  onChangeText: (text) => { console.warn(text) }
                }}
                getDefaultValue={() => ''}

                query={{
                  // available options: https://developers.google.com/places/web-service/autocomplete
                  key: 'XXXXXXXXXXXXXXZXZXXXXXXX',
                  language: 'en', // language of the results
                  types: 'geocode' // default: 'geocode'
                }}

                styles={{
                  textInputContainer: {
                    backgroundColor: 'rgba(0,0,0,0)',
                    borderTopWidth: 0,
                    borderBottomWidth:0,
                  },
                  description: {
                    fontWeight: 'bold',
                  },
                  textInput: {
                  marginLeft: 22,
                  marginRight: 0,
                  height: 38,
                  color: '#5d5d5d',
                  fontSize: 16,
                },
                  predefinedPlacesDescription: {
                    color: '#1faadb'
                  }
                }}
                value={props.location}
                onChangeText={props.onLocationChange}
                renderLeftButton={()  => <Text style={{ marginTop: 12, marginLeft:16, fontSize: 18 }}> Location </Text>}
                nearbyPlacesAPI='GooglePlacesSearch' // Which API to use: GoogleReverseGeocoding or GooglePlacesSearch
                GoogleReverseGeocodingQuery={{
                  // available options for GoogleReverseGeocoding API : https://developers.google.com/maps/documentation/geocoding/intro
                }}
                GooglePlacesSearchQuery={{
                  // available options for GooglePlacesSearch API : https://developers.google.com/places/web-service/search
                  rankby: 'distance',
                  types: 'food'
                }}

                filterReverseGeocodingByTypes={['locality', 'administrative_area_level_3']} // filter the reverse geocoding results by types - ['locality', 'administrative_area_level_3'] if you want to display only cities
                debounce={200} // debounce the requests in ms. Set to 0 to remove debounce. By default 0ms.

              />

Answer 2

晚于游戏，但有一个名为setAddressText的函数。

示例：

setLocation(text) {
  this.placesRef && this.placesRef.setAddressText(text)
}
...
<GooglePlacesAutocomplete
ref={ref => {this.placesRef = ref}}
...
/>

react-native-google-places-autocomplete为其赋予值而不仅仅是默认值（初始值）

2 个答案: