title: Can't override OnActivityResult method
body: <p>I am not really good with Android Studio. </p>
  
  <p>I started a WebView project where we can log in / register and edit your password if you forget it. I wanted to add Log In from Facebook. I implemented the Facebook SDK and added the package &amp; hash key in my developer application page. I followed the documentation and I chose to log the user in from my webpage and call the Facebook SDK with the <code>logInWithReadPermissions</code> method from my JavascriptInterface. </p>
  
  <p>I get the result and return the result from my webpage. To get this data, I must override the method <code>onActivityResult</code> of my <code>Activity</code> (extended from <code>AppCompatActivity</code>). Android Studio says that I can't override the <code>onActivityResult</code> method because this method does not override from the superclass.
  Moreover, if I remove the <code>@Override</code>, the method is never called.</p>
  
  <p>I copied this code from an older kotlin project that was working. I don't understand why I get this error now.</p>
  
  <p>My MainActivity Class:</p>
  
  <pre><code>package fr.versus.versus;
  
  import android.annotation.SuppressLint;
  import android.content.Context;
  import android.content.Intent;
  import android.content.pm.PackageInfo;
  import android.content.pm.PackageManager;
  import android.os.Build;
  import android.support.annotation.NonNull;
  import android.support.annotation.Nullable;
  import android.support.v7.app.AppCompatActivity;
  import android.os.Bundle;
  import android.util.Base64;
  import android.util.Log;
  import android.webkit.CookieManager;
  import android.webkit.JavascriptInterface;
  import android.webkit.WebSettings;
  import android.webkit.WebView;
  import android.webkit.WebViewClient;
  import android.widget.Toast;
  
  import com.facebook.AccessToken;
  import com.facebook.CallbackManager;
  import com.facebook.login.LoginManager;
  import com.google.android.gms.common.api.ApiException;
  import com.google.android.gms.common.api.CommonStatusCodes;
  import com.google.android.gms.safetynet.SafetyNet;
  import com.google.android.gms.safetynet.SafetyNetApi;
  import com.google.android.gms.tasks.OnFailureListener;
  import com.google.android.gms.tasks.OnSuccessListener;
  
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.FileWriter;
  import java.io.IOException;
  import java.security.MessageDigest;
  import java.util.Arrays;
  
  public class MainActivity extends AppCompatActivity {
  
      public WebView webview;
  
      @SuppressLint({"SetJavaScriptEnabled", "JavascriptInterface"})
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_webview);
  
          this.webview = findViewById(R.id.webview);
  
          this.webview.setWebViewClient(new WebViewClient() {
              public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
                  Toast.makeText(MainActivity.this, "Oh no! " + description, Toast.LENGTH_SHORT).show();
              }
          });
  
          if (Build.VERSION.SDK_INT &gt;= Build.VERSION_CODES.KITKAT) {
              WebView.setWebContentsDebuggingEnabled(true);
          }
  
          this.webview.addJavascriptInterface(new JsObject(this), "android");
  
          WebSettings settings = this.webview.getSettings();
  
          settings.setJavaScriptEnabled(true);
          settings.setDomStorageEnabled(true);
  
          settings.setAllowFileAccessFromFileURLs(true);
          settings.setAllowUniversalAccessFromFileURLs(true);
  
          CookieManager.setAcceptFileSchemeCookies(true);
  
          CookieManager cookieManager = CookieManager.getInstance();
          cookieManager.setAcceptCookie(true);
  
          if (Build.VERSION.SDK_INT &gt;= Build.VERSION_CODES.LOLLIPOP) {
              cookieManager.setAcceptThirdPartyCookies(webview, true);
          }
  
          printHashKey(this);
  
          this.webview.loadUrl("file:///android_asset/main.html");
      }
  
      @Override
      protected void onActivityResult(Integer requestCode, Integer resultCode,Intent data) {
          CallbackManager callbackManager = CallbackManager.Factory.create();
  
          callbackManager.onActivityResult(requestCode, resultCode, data);
          super.onActivityResult(requestCode, resultCode, data);
  
          Log.e("FACEBOOK",AccessToken.getCurrentAccessToken().getToken());
  
          callJavascript("FACEBOOK", "{\"token\": \"" + AccessToken.getCurrentAccessToken().getToken() + "\",\"id\": " + AccessToken.getCurrentAccessToken().getUserId() + "}");
      }
  
      private void callJavascript(String returnType, String value) {
          final String returnTypeFormated = "\"" + returnType.replace("\"", "\\\"") + "\"";
          final String valueFormated = "\"" + value.replace("\"", "\\\"") + "\"";
  
          this.webview.post(new Runnable(){
              @Override
              public void run() {
  
                  if (android.os.Build.VERSION.SDK_INT &gt;= android.os.Build.VERSION_CODES.KITKAT) {
                      MainActivity.this.webview.evaluateJavascript("inter(" + returnTypeFormated + "," + valueFormated + ");",null);
                  }else{
                      MainActivity.this.webview.loadUrl("javascript:inter(" + returnTypeFormated + "," + valueFormated + ");");
                  }
              }
          });
      }
  
      private class JsObject {
  
          private Context context;
  
          JsObject(Context ctx) {
              context = ctx;
          }
  
          @JavascriptInterface
          void getFacebook() {
              LoginManager.getInstance().logInWithReadPermissions(MainActivity.this, Arrays.asList("public_profile", "user_friends", "email", "user_birthday", "user_photos"));
          }
  
          @JavascriptInterface
          void getReCapcha(){
              SafetyNet.getClient(context).verifyWithRecaptcha("6LfQe2cUAAAAAFxXDxFxZlICH9TN8NV6cBJRcoNq")
                  .addOnSuccessListener(MainActivity.this, new OnSuccessListener&lt;SafetyNetApi.RecaptchaTokenResponse&gt;() {
                      @Override
                      public void onSuccess(SafetyNetApi.RecaptchaTokenResponse response) {
                          if (!response.getTokenResult().isEmpty()) {
                              MainActivity.this.callJavascript("CAPCHA",response.getTokenResult());
                          }
                      }
                  })
                  .addOnFailureListener(MainActivity.this, new OnFailureListener() {
                      @Override
                      public void onFailure(@NonNull Exception e) {
                          if (e instanceof ApiException) {
                              ApiException apiException = (ApiException) e;
                              Log.d("CAPCHA", "Error message: " +
                                      CommonStatusCodes.getStatusCodeString(apiException.getStatusCode()));
                          } else {
                              Log.d("CAPCHA", "Unknown type of error: " + e.getMessage());
                          }
                      }
                  });
          }
      }
  }
  </code></pre>
  
  <p>My App Gradle file:</p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 27
      defaultConfig {
          applicationId "fr.versus.versus"
          minSdkVersion 17
          targetSdkVersion 27
          versionCode 1
          versionName "1.0"
          testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  }
  
  dependencies {
      implementation fileTree(dir: 'libs', include: ['*.jar'])
      //noinspection GradleCompatible
      implementation 'com.android.support:appcompat-v7:27.1.1'
      testImplementation 'junit:junit:4.12'
      androidTestImplementation 'com.android.support.test:runner:1.0.2'
      androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
  
      implementation 'com.facebook.android:facebook-login:4.35.0'
  
      implementation 'com.google.android.gms:play-services-safetynet:15.0.1'
  
      implementation 'com.stripe:stripe-android:6.1.2'
  }
  </code></pre>
  
  <p>Why can't I override this method?</p>