錯誤上下文：android.content.Context

Question

下面是代碼：

import android.app.Activity; 
    import android.app.AlertDialog; 
    import android.content.DialogInterface; 
    import android.content.Intent; 
    import android.content.pm.PackageManager; 
    import android.net.Uri; 
    import android.os.Bundle; 
    import android.provider.Settings; 
    import android.support.design.widget.Snackbar; 
    import android.support.v4.app.ActivityCompat; 
    import android.support.v4.app.Fragment; 
    import android.support.v4.content.ContextCompat; 
    import android.support.v4.widget.SwipeRefreshLayout; 
    import android.support.v7.widget.DefaultItemAnimator; 
    import android.support.v7.widget.GridLayoutManager; 
    import android.support.v7.widget.LinearLayoutManager; 
    import android.support.v7.widget.RecyclerView; 
    import android.util.Log; 
    import android.view.LayoutInflater; 
    import android.view.Menu; 
    import android.view.MenuInflater; 
    import android.view.MenuItem; 
    import android.view.View; 
    import android.view.ViewGroup; 
    import android.widget.ArrayAdapter; 
    import android.widget.Button; 
    import android.widget.ImageView; 
    import android.widget.LinearLayout; 
    import android.widget.TextView; 
    import android.widget.Toast; 

    import com.android.volley.Request; 
    import com.android.volley.Response; 
    import com.android.volley.VolleyError; 

    import org.json.JSONArray; 
    import org.json.JSONException; 
    import org.json.JSONObject; 

    import java.util.ArrayList; 
    import java.util.HashMap; 
    import java.util.Map; 

    import com.facebook.ads.*; 

    import static com.facebook.FacebookSdk.getApplicationContext; 

    public class NearbyFragment extends Fragment implements Constants, SwipeRefreshLayout.OnRefreshListener { 

     private static final String STATE_LIST = "State Adapter Data"; 
     private static final String STATE_LIST_2 = "State Adapter Data 2"; 

     Menu MainMenu; 

     RecyclerView mRecyclerView; 
     TextView mMessage, mDetails; 
     ImageView mSplash; 

     SwipeRefreshLayout mItemsContainer; 

     LinearLayout mSpotLight, mPermissionSpotlight; 

     Button mGrantPermission; 

     private ArrayList<Item> itemsList; 
     private ItemListAdapter itemsAdapter; 

     private ArrayList<Profile> peopleList; 
     private SearchListAdapter peopleAdapter; 

     private AdView adView; 

     private int itemId = 0; 
     private int arrayLength = 0; 
     private Boolean loadingMore = false; 
     private Boolean viewMore = false; 
     private Boolean restore = false; 

     int pastVisiblesItems = 0, visibleItemCount = 0, totalItemCount = 0; 

     private int distance = NEARBY_DIALOG_OPTION_1;  // im miles 
     private int mode = 0;        // view mode 

     public NearbyFragment() { 
      // Required empty public constructor 
     } 

     @Override 
     public void onCreate(Bundle savedInstanceState) { 

      super.onCreate(savedInstanceState); 

    //  setRetainInstance(true); 

      setHasOptionsMenu(true); 

      loadBannerAd(); 

     } 

     public void loadBannerAd() { 
      // Instantiate an AdView view 
      adView = new AdView(this, "111111111111111_111111111111111", AdSize.BANNER_HEIGHT_50); 

      // Find the Ad Container 
      LinearLayout adContainer = (LinearLayout) adView.findViewById(R.id.banner_container1); 

      // Add the ad view to your activity layout 
      adContainer.addView(adView); 

      adView.setAdListener(new com.facebook.ads.AdListener() { 

       @Override 
       public void onError(Ad ad, AdError error) { 
        // Ad failed to load. 
        // Add code to hide the ad's view 
       } 

       @Override 
       public void onAdLoaded(Ad ad) { 
        // Ad was loaded 
        // Add code to show the ad's view 
       } 

       @Override 
       public void onAdClicked(Ad ad) { 
        // Use this function to detect when an ad was clicked. 
       } 

       @Override 
       public void onLoggingImpression(Ad ad) { 

       } 

      }); 

      // Request an ad 
      adView.loadAd(); 
     } 

獲取上線錯誤 「這個， 」xxxxxxxxxxxxxxx_xxxxxxxxxxxxxxx「，AdSize.BANNER_HEIGHT_50」。 錯誤如圖所示。頭痛的這個錯誤。想知道如何解決它。謝謝。

Answer 1

你必須寫getActivity（）。getApplicationContext（）而不是此