将模块添加到React Native - 错误：找不到符号

Question

我想向我的React Native应用程序添加一个简单的模块。但是我有一个错误：

:app:compileDebugJavaWithJavacE:\project\android\app\src\main\java\com\androiddepends\HelloWorld.java:23: error: cannot find symbol 
    Intent intent = new Intent(Intent.ACTION_WIFI_SETTINGS); 
    ^
    symbol: class Intent 
    location: class HelloWorld 
E:\project\android\app\src\main\java\com\androiddepends\HelloWorld.java:23: error: cannot find symbol 
    Intent intent = new Intent(Intent.ACTION_WIFI_SETTINGS); 
         ^
    symbol: class Intent 
    location: class HelloWorld 
E:\project\android\app\src\main\java\com\androiddepends\HelloWorld.java:23: error: cannot find symbol 
    Intent intent = new Intent(Intent.ACTION_WIFI_SETTINGS); 
          ^
    symbol: variable Intent 
    location: class HelloWorld 
E:\project\android\app\src\main\java\com\androiddepends\HelloWorld.java:24: error: cannot find symbol 
    if (intent.resolveActivity(getPackageManager()) != null) { 
          ^
    symbol: method getPackageManager() 
    location: class HelloWorld 
4 errors 
FAILED 

下面是代码：

package com.androiddepends; 

import com.facebook.react.bridge.NativeModule; 
import com.facebook.react.bridge.ReactApplicationContext; 
import com.facebook.react.bridge.ReactContext; 
import com.facebook.react.bridge.ReactContextBaseJavaModule; 
import com.facebook.react.bridge.ReactMethod; 
import android.util.Log; 

public class HelloWorld extends ReactContextBaseJavaModule { 

    public HelloWorld(ReactApplicationContext reactContext) { 
     super(reactContext); 
    } 

    @Override 
    public String getName() { 
     return "HelloWorld"; 
    } 

    @ReactMethod 
    public void openWifiSettings() { 
    Intent intent = new Intent(Intent.ACTION_WIFI_SETTINGS); 
    if (intent.resolveActivity(getPackageManager()) != null) { 
     startActivity(intent); 
    } 
} 
} 

任何想法？

Answer 1

您应该导入android SDK的intent包，该包在进口部分找不到。

android.content.Intent

问题是SDK的Intent类未找到。