在react-native-导航中设置选项卡栏图标颜色

import { createBottomTabNavigator } from 'react-navigation';

const TabNavigator = createBottomTabNavigator(
  {
    Home: HomeScreen,
    Profile: ProfileScreen,
    Settings: SettingsScreen,
  },
  {
    tabBarOptions: {
      activeTintColor: 'blue', // 设置选中的图标颜色
      inactiveTintColor: 'gray', // 设置未选中的图标颜色
    },
  }
);

class HomeScreen extends React.Component {
  static navigationOptions = {
    tabBarIcon: ({ tintColor }) => (
      <Image
        source={require('./home-icon.png')}
        style={[styles.tabIcon, { tintColor: tintColor }]}
      />
    ),
  };

  // ...
}