Question

所以我使用this包尝试将MapBox集成到我正在处理的React-Native项目中，并且在运行时我不断收到此错误。我已经按照他们页面上的说明进行操作了，我仍然得到了这个，所以我想我一直忘记安装包或其他东西。任何人都知道如何解决这个问题？

a:17: error: cannot find symbol
protected List getPackages() {
^
symbol: class List
location: class MainActivity
/Github/ReactApp/android/app/src/main/java/com/reactapp/MainActivity.java:17: error: cannot find symbol
protected List getPackages() {
^
symbol: class ReactPackage
location: class MainActivity
/Github/ReactApp/android/app/src/main/java/com/reactapp/MainActivity.java:16: error: method does not override or implement a method from a supertype
@Override
^
/Github/ReactApp/android/app/src/main/java/com/reactapp/MainActivity.java:19: error: cannot find symbol
new MainReactPackage(),
^
symbol: class MainReactPackage
location: class MainActivity
/Github/ReactApp/android/app/src/main/java/com/reactapp/MainActivity.java:18: error: cannot find symbol
return Arrays.asList(
^
symbol: class ReactPackage
location: class MainActivity
/Github/ReactApp/android/app/src/main/java/com/reactapp/MainActivity.java:18: error: cannot find symbol
return Arrays.asList(
^
symbol: variable Arrays
location: class MainActivity
6 errors

编辑：这是MainActivity的源代码：

package com.reactapp;

import com.facebook.react.ReactActivity;
import com.oblador.vectoricons.VectorIconsPackage;
import com.mapbox.reactnativemapboxgl.ReactNativeMapboxGLPackage;

public class MainActivity extends ReactActivity {

    /**
     * Returns the name of the main component registered from JavaScript.
     * This is used to schedule rendering of the component.
     */
    @Override
    protected String getMainComponentName() {
        return "ReactApp";
    }
    @Override
  protected List<ReactPackage> getPackages() {
    return Arrays.<ReactPackage>asList(
      new MainReactPackage(),
      new ReactNativeMapboxGLPackage());  // <-- Register package here
  }
}

Answer 1

您缺少一些导入：

 import java.util.List;
 import java.util.Arrays;
 import com.facebook.react.shell.MainReactPackage;
 import com.facebook.react.ReactPackage;

您的@Overrides之一也是一个方法（getPackages），它不会覆盖超类中的任何内容。删除它。

Answer 2

U缺少进口＆gt; 如果你使用Android工作室去：文件＆gt;设置＆gt;编辑器＆gt;常规＆gt;自动导入和检查 - 显示导入弹出窗口 - 即时优化导入 - 即时添加明确的导入

符号未找到Android React Native

2 个答案: