小编The*_*ine的帖子

我正在使用react-native-maps处理一个小地图应用程序.我试图在地图上面渲染一个浮动动作按钮,但是当我看到它闪烁一秒钟时,一旦地图呈现,它就位于按钮顶部.我将在下面粘贴我的渲染代码和样式:

render() {
        return (
          <View style={{flex:1, backgroundColor: '#f3f3f3'}}>
            <MapView ref="map" mapType="terrain" style={styles.map} region={this.state.region} onRegionChange={this.onRegionChange}>
              <MapView.Marker coordinate={{latitude: this.state.region.latitude, longitude: this.state.region.longitude}}>
                <View style={styles.radius}>
                  <View style={styles.marker} />
                </View>
              </MapView.Marker>
            </MapView>

            <ActionButton buttonColor="rgba(231,76,60,1)" style={styles.actionButton}>
              <ActionButton.Item buttonColor='#9b59b6' title="New Task" onPress={() => console.log("notes tapped!")}>
                <Icon name="rocket" style={styles.actionButtonIcon} />
              </ActionButton.Item>
              <ActionButton.Item buttonColor='#3498db' title="Notifications" onPress={() => {}}>
                <Icon name="rocket" style={styles.actionButtonIcon} />
              </ActionButton.Item>
              <ActionButton.Item buttonColor='#1abc9c' title="All Tasks" onPress={() => {}}>
                <Icon name="rocket" style={styles.actionButtonIcon} />
              </ActionButton.Item>
            </ActionButton>
          </View>
        );
      }
    }

const styles = StyleSheet.create({
  container: {
    flex: 1, …