2017-04-13 10 views
0

ナビゲーション・ドロワーを持つ主なアクティビティーがある場所にアプリを作成しました。いずれかのフラグメント(SourceFragment)では、上部にタブビューを作成し、タブの下にビューページャーを作成しました。ここでは、2つのフラグメント(AllSourcesFragmentおよびPreferredSourcesFragment)が展開されます。私はAllSourcesFragmentにスピナーを設定し、それをインパクトすることができます。しかし、私はspinnerカードの下にrecyclerView(カード付き)を設定したいと思います。私はrecyclerViewのlayoutInflaterを設定することができます。つまり、AllSourcesFragment.javaの行をコメントアウトすると、すべてのコンポーネントが正常に動作します。しかし、私が線aを示唆すると、次のエラーが発生する。アダプターをrecyclerViewに設定できないネストされた内部フラグメント

04-13 15:22:22.171 2662-2662 /? E/WindowManager:android.view.WindowLeaked:Activity com.example.kartik.bulletin.MainActivityがウィンドウをリークしましたDecorView @ bbc06ec android.view.ViewRootImplの (ViewRootImpl.java:424)に最初に追加された[お待ちください] android.app.Dialog.showでandroid.view.WindowManagerImpl.addView(WindowManagerImpl.java:93) でandroid.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:331) (Dialog.java:316) ででcom.example.kartik.bulletin.Downloader.onPreExecute(Downloader.java:49) android.os.AsyncTask.executeOnExecutor(AsyncTask.java:613) android.os.AsyncTask.execute(AsyncTask.java:560) at com.example.kartik.bulletin.AllSou rcesFragment.onCreateView(AllSourcesFragment.java:42) android.support.v4.app.Fragment.performCreateView(FragmentManager.java:2192) android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1299) android.support.v4.app.FragmentManagerImpl.moveToStateでandroid.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1528) (FragmentManager.java:1595)android.support.v4.appで で。 (FragmentManager.java:2149)のにあるandroid.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2363)のBackStackRecord.executeOps(BackStackRecord.java:758) android.support.v4.app.FragmentManagerImpl.optimizeAndExecuteOps(FragmentManager.java:2103)android.support.v4.app.FrameManagerImpl.execSingleAction(FragmentManager.java:1984)の android.support.v4.app.BackStackRecord .commitNowAllowingStateLoss(BackStackRecord.java:626) android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:143) android.support.v4.view.ViewPager.populate(ViewPager.java:1268) android.support.v4.view.ViewPager.populate(ViewPager.java:1116)android.view.View.measureでandroid.support.v4.view.ViewPager.onMeasure(ViewPager.java:1642) で (ビューで.javaファイル:19756) アンドロでid.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6124)android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464)で android.widget.LinearLayout.measureVertical(LinearLayout.java:758)で アンドロイドで 。 widget.LinearLayout.onMeasure(LinearLayout.java:640)android.widgetでandroid.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6124) でandroid.view.View.measure(View.java:19756) で。 FrameLayout.onMeasure(FrameLayout.java:185) android.view.View.measure(View.java:19756) (android.support.v4.widget.DrawerLayout.onMeasure(DrawerLayout.java:1081) 、android)にあります。 view.V IEW。measure(View.java:19756) at android.widget.RelativeLayout.measureChildHorizo​​ntal(RelativeLayout.java:715) (android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461) android.view.View.measure View.java:19756) (android.support.v7.widget.ContentFrameLayout)の (ViewGroup.java:6124) (withroid.widget.FrameLayout.onMeasure(FrameLayout.java:185) )は、 onMeasure(ContentFrameLayout.java:139) android.view.View.measure(View.java:19756) android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6124) android.support.v7.widgetにあります。 ActionBar OverlayLayout.onMeasure(ActionBarOverlayLayout.java:393)android.widget.FrameLayoutでandroid.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6124) でandroid.view.View.measure(View.java:19756) で。 onMeasure(FrameLayout.java:185) android.view.View.measure(View.java:19756) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6124) at android.widget.LinearLayout.measureChildBeforeLayout android.view.View.measureでandroid.widget.LinearLayout.onMeasure(LinearLayout.java:640) でandroid.widget.LinearLayout.measureVertical(LinearLayout.java:758) でLinearLayout.java:1464) (View.java:19756) android.view.View.ViewGroup.measureChildWithMargins(ViewGroup.java:6124) at android.widget.FrameLayout.onMeasure(FrameLayout.java:185) at com.android.internal.policy.DecorView .onMeasure(DecorView.java:687) 04-13 15:22:22.171 2662-2662 /? E /ウィンドウマネージャ:android.view.View.measure(View.java:19756)android.view.ViewRootImpl.measureHierarchyでandroid.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2283) で(ViewRootImpl.java:1370でandroid.view.ViewRootImpl.performTraversalsで) (android.view.ViewRootImpl $ TraversalRunnable.runでandroid.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1258でViewRootImpl.java:1619) ) (ViewRootImpl.java:6348 android.view.Choreographer.doFrame(Choreographer.java:619でandroid.view.Choreographer $ CallbackRecord.run(Choreographer.java:871)android.view.Choreographer.doCallbacksで (Choreographer.java:683) で) )android.os.Handler.dispatchMessage(Handler.java:95)の にあります。 android.os.Looper.loop(Looper.java:154)の android.app.ActivityThread.main(ActivityThread.java:6123) at java.lang.reflect.Method.invoke(ネイティブメソッド) at com .android.internal.os.ZygoteInit $ MethodAndArgsCaller.run com.android.internal.os.ZygoteInit.main(ZygoteInit.java:757)で(ZygoteInit.java:867)

AllSourcesFragment.java

package com.example.kartik.bulletin; 


import android.content.Context; 
import android.os.Bundle; 
import android.os.RecoverySystem; 
import android.support.v4.app.Fragment; 
import android.support.v7.widget.LinearLayoutManager; 
import android.support.v7.widget.RecyclerView; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.ArrayAdapter; 
import android.widget.Spinner; 

public class AllSourcesFragment extends Fragment { 


    Spinner categorySpinner; 
    String url = "https://newsapi.org/v1/sources"; 

    public AllSourcesFragment() { 
     // Required empty public constructor 
    } 
    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 
     // Inflate the layout for this fragment 
     View view = inflater.inflate(R.layout.fragment_all_sources, container, false); 



     categorySpinner = (Spinner)view.findViewById(R.id.source_categoryspinner); 
     final String[] categories = new String[] { "All categories", "general", "business", "entertainment", "gaming", "music", "science-and-nature", "sport", "technology"}; 
     ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(getContext(), android.R.layout.simple_spinner_item, categories); 
     categorySpinner.setAdapter(arrayAdapter); 


     RecyclerView recyclerView = (RecyclerView)view.findViewById(R.id.source_recyclerview); 
     recyclerView.setLayoutManager(new LinearLayoutManager(getContext())); 

//Line a that is creating problem 
     new Downloader(getContext(), url, recyclerView, 0, "All Sources").execute(); 

     return view; 
    } 

} 

のダウンローダ。Javaの

package com.example.kartik.bulletin; 

import android.app.ProgressDialog; 
import android.content.Context; 
import android.os.AsyncTask; 
import android.support.v7.widget.RecyclerView; 
import android.util.Log; 
import android.widget.Toast; 

import java.io.BufferedInputStream; 
import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStream; 
import java.io.InputStreamReader; 
import java.net.HttpURLConnection; 

/** 
* Created by kartik on 13/4/17. 
*/ 

public class Downloader extends AsyncTask<Void, Void, String> { 



    Context c; 
    String jsonUrl, category; 
    RecyclerView rv; 
    int choice; 

    String TAG = "Bla bla"; 
    ProgressDialog pd; 

    public Downloader(Context c, String jsonUrl, RecyclerView rv, int choice, String category) { 
     this.c = c; 
     this.jsonUrl = jsonUrl; 
     this.rv = rv; 
     this.choice = choice; 
     this.category = category; 
    } 


    @Override 
    protected void onPreExecute() { 
     super.onPreExecute(); 

     pd = new ProgressDialog(c); 
     pd.setTitle("Please wait..."); 
     pd.setMessage("Loading list of news sources"); 
     pd.show(); 
    } 


    @Override 
    protected String doInBackground(Void... params) { 
     return download(); 
    } 

    @Override 
    protected void onPostExecute(String jsonData) { 
     super.onPostExecute(jsonData); 

     pd.dismiss(); 
     if(jsonData.startsWith("Error")){ 
      String error = jsonData; 
      Toast.makeText(c, error, Toast.LENGTH_SHORT).show(); 
     }else { 
      //parser 
      if(choice == 0) 
       new SourceParser(c, jsonData, rv, category).execute(); 
      /*else 
       new NewsParser(c, jsonData, rv).execute();*/ 
     } 
    } 

    private String download(){ 
     Object connection = Connector.connect(jsonUrl); 
     if(connection.toString().startsWith("Error")) 
      return connection.toString(); 

     try{ 
      HttpURLConnection con = (HttpURLConnection)connection; 
      if(con.getResponseCode()==con.HTTP_OK){ 
       InputStream is = new BufferedInputStream(con.getInputStream()); 
       BufferedReader br = new BufferedReader(new InputStreamReader(is)); 

       String line; 
       StringBuffer jsonData = new StringBuffer(); 

       while((line = br.readLine())!=null) 
        jsonData.append(line+"\n"); 

       br.close(); 
       is.close(); 

       Log.d(TAG, jsonData.toString()); 
       return jsonData.toString(); 

      }else { 
       return "Error" + con.getResponseMessage(); 
      } 
     } catch (IOException e) { 
      e.printStackTrace(); 
      return "Error : "+e.getMessage(); 
     } 
    } 
} 

SourceParser.java

package com.example.kartik.bulletin; 

import android.app.ProgressDialog; 
import android.content.Context; 
import android.os.AsyncTask; 
import android.support.v7.widget.RecyclerView; 
import android.util.Log; 
import android.widget.Toast; 

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

import java.util.ArrayList; 

/** 
* Created by kartik on 13/4/17. 
*/ 

public class SourceParser extends AsyncTask<Void, Void, Boolean> { 

    Context c; 
    String jsonData, category; 
    RecyclerView rv; 
    String TAG = "NOT bla bla"; 
    SourceAdapter adapter; 

    ProgressDialog pd; 
    ArrayList<SourceItem> sourceItems= new ArrayList<>(); 

    public SourceParser(Context c, String jsonData, RecyclerView rv, String category) { 
     this.c = c; 
     this.jsonData = jsonData; 
     this.rv = rv; 
     this.category = category; 
    } 

    @Override 
    protected void onPreExecute() { 
     super.onPreExecute(); 
     Log.d(TAG, "onPreExecute: parser reached"); 

     pd = new ProgressDialog(c); 
     pd.setTitle("Please wait..."); 
     pd.setMessage("Loading list of news sourceItems"); 
     pd.show(); 
    } 

    @Override 
    protected Boolean doInBackground(Void... params) { 
     Log.d(TAG, "doInBackground: parser reached"); 
     return parse(); 
    } 

    @Override 
    protected void onPostExecute(Boolean isParsed) { 
     super.onPostExecute(isParsed); 
     Log.d(TAG, "onPosExecute: parser reached"); 
     pd.dismiss(); 

     if(isParsed){ 
      adapter = new SourceAdapter(c, sourceItems); 
      rv.setAdapter(adapter); 
     }else 
      Toast.makeText(c, "Unable to parse", Toast.LENGTH_LONG).show(); 


    } 


    private boolean parse(){ 
     try{ 
      sourceItems.clear(); 
      JSONObject obj = new JSONObject(jsonData); 
      JSONArray jsonArray = obj.getJSONArray("sources"); 
      for(int i=0; i<jsonArray.length(); i++){ 

       JSONObject jsonObject = (JSONObject) jsonArray.get(i); 

       if(!category.equals("All categories") && !category.equals(jsonObject.getString("category"))) 
        continue; 


       Log.d(TAG, jsonObject.getString("name")); 

       String id = jsonObject.getString("id"); 
       String name = jsonObject.getString("name"); 
       String description = jsonObject.getString("description"); 
       String actualUrl= jsonObject.getString("url"); 
       String category= jsonObject.getString("category"); 
       String language= jsonObject.getString("language"); 
       String country= jsonObject.getString("country"); 

       Log.d(TAG, jsonObject.getString("id")); 
       JSONObject urls = jsonObject.getJSONObject("urlsToLogos"); 

       String surl= urls.getString("small"); 
       String murl= urls.getString("medium"); 
       String lurl= urls.getString("large"); 

       sourceItems.add(new SourceItem(id, name, description, actualUrl, category, language, country, surl, murl, lurl)); 

       String a = Integer.toString(sourceItems.size()); 
       Log.d(TAG, a); 


      } 


      return true; 
     } catch (JSONException e) { 
      e.printStackTrace(); 
      return false; 
     } 
    } 
} 

SourceAdapter.java

package com.example.kartik.bulletin; 

import android.content.Context; 
import android.content.Intent; 
import android.support.v7.widget.CardView; 
import android.support.v7.widget.RecyclerView; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.ImageView; 
import android.widget.ProgressBar; 
import android.widget.TextView; 
import android.widget.Toast; 

import com.bumptech.glide.Glide; 
import com.bumptech.glide.load.resource.drawable.GlideDrawable; 
import com.bumptech.glide.request.RequestListener; 
import com.bumptech.glide.request.target.Target; 

import java.util.List; 

/** 
* Created by kartik on 13/4/17. 
*/ 

public class SourceAdapter extends RecyclerView.Adapter<SourceAdapter.SourceViewHolder> { 


    private List<SourceItem> sources; 
    private Context context; 
    private LayoutInflater inflater; 


    public SourceAdapter(Context context, List<SourceItem> sources) { 
     this.sources = sources; 
     this.context = context; 
     inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    } 

    public class SourceViewHolder extends RecyclerView.ViewHolder { 

     ImageView imageView; 
     TextView title, description, category; 
     ProgressBar progressBar; 
     CardView cardView; 
     public SourceViewHolder(View itemView) { 
      super(itemView); 


      imageView = (ImageView)itemView.findViewById(R.id.source_imageview); 
      title = (TextView)itemView.findViewById(R.id.source_title); 
      description = (TextView)itemView.findViewById(R.id.source_description); 
      category = (TextView)itemView.findViewById(R.id.source_category); 
      progressBar = (ProgressBar)itemView.findViewById(R.id.source_progressbar); 
      cardView = (CardView)itemView.findViewById(R.id.source_card); 


     } 

    } 





    @Override 
    public SourceViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 


     View rootView = inflater.inflate(R.layout.card_source, parent, false); 
     return new SourceViewHolder(rootView); 
    } 

    @Override 
    public void onBindViewHolder(final SourceViewHolder holder, int position) { 
     final SourceItem item = sources.get(position); 

     String cat = "Category : "+item.getCategory(); 
     holder.title.setText(item.getName()); 
     holder.description.setText(item.getDescription()); 
     holder.category.setText(cat); 

     Glide.with(context) 
       .load(item.getLargeLogoUrl()) 
       .listener(new RequestListener<String, GlideDrawable>() { 
        @Override 
        public boolean onException(Exception e, String model, Target<GlideDrawable> target, boolean isFirstResource) { 
         holder.progressBar.setVisibility(View.GONE); 
         return false; 
        } 

        @Override 
        public boolean onResourceReady(GlideDrawable resource, String model, Target<GlideDrawable> target, boolean isFromMemoryCache, boolean isFirstResource) { 
         holder.progressBar.setVisibility(View.GONE); 
         return false; 
        } 
       }) 
       //.error(R.drawable.image_not_found) 
       .into(holder.imageView); 


     holder.cardView.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       clicked(item); 
      } 
     }); 
    } 

    private void clicked(SourceItem item) { 
     Toast.makeText(context, "Click on any article to read it!", Toast.LENGTH_LONG).show(); 
     /*Intent intent = new Intent(context, NewsActivity.class); 
     intent.putExtra("id", item.getId()); 
     intent.putExtra("name", item.getName()); 
     context.startActivity(intent);*/ 
    } 

    @Override 
    public int getItemCount() { 
     if(sources == null) 
      return 0; 
     return sources.size(); 
    } 


} 

SourceFragment.java

package com.example.kartik.bulletin; 

import android.os.Bundle; 
import android.support.design.widget.TabLayout; 
import android.support.v4.app.Fragment; 
import android.support.v4.view.ViewPager; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 

public class SourceFragment extends Fragment { 
    public static TabLayout tabLayout; 
    public static ViewPager viewPager; 
    public static int int_items= 2; 


    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 
     // Inflate the layout for this fragment 
     View view = inflater.inflate(R.layout.fragment_source, null); 

     tabLayout=(TabLayout)view.findViewById(R.id.tabs); 
     viewPager=(ViewPager)view.findViewById(R.id.viewpager); 
     //set an adpater 


     viewPager.setAdapter(new MyAdapter(getChildFragmentManager())) ; 

     tabLayout.post(new Runnable() { 
      @Override 
      public void run() { 
       tabLayout.setupWithViewPager(viewPager); 
      } 
     }); 

     return view; 
    } 
} 

MainActivity.java

package com.example.kartik.bulletin; 

import android.support.annotation.NonNull; 
import android.support.design.widget.NavigationView; 
import android.support.v4.app.FragmentManager; 
import android.support.v4.app.FragmentTransaction; 
import android.support.v4.widget.DrawerLayout; 
import android.support.v7.app.ActionBarDrawerToggle; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.support.v7.widget.Toolbar; 
import android.view.MenuItem; 

public class MainActivity extends AppCompatActivity { 

    DrawerLayout drawerLayout; 
    NavigationView navigationView; 
    FragmentManager FM; 
    FragmentTransaction FT; 



    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 


     drawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout); 
     navigationView= (NavigationView) findViewById(R.id.shitstuff); 

     FM= getSupportFragmentManager(); 
     FT= FM.beginTransaction(); 
     FT.replace(R.id.containerView, new SourceFragment()).commit(); 

     navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() { 
      @Override 
      public boolean onNavigationItemSelected(@NonNull MenuItem item) { 
       drawerLayout.closeDrawers(); 

       if (item.getItemId()== R.id.nav_articles) { 
        FragmentTransaction fragmentTransaction= FM.beginTransaction(); 
        fragmentTransaction.replace(R.id.containerView, new ArticleFragment()).commit(); 
       } 
       if(item.getItemId()==R.id.nav_sources){ 
        FragmentTransaction fragmentTransaction1=FM.beginTransaction(); 
        fragmentTransaction1.replace(R.id.containerView,new SourceFragment()).commit(); 
       } 
       if(item.getItemId()==R.id.nav_bookmarks){ 
        FragmentTransaction fragmentTransaction1=FM.beginTransaction(); 
        fragmentTransaction1.replace(R.id.containerView,new BookmarkFragment()).commit(); 
       } 
       return false; 
      } 
     }); 


     android.support.v7.widget.Toolbar toolbar = (Toolbar)findViewById(R.id.toolbar); 
     ActionBarDrawerToggle toggle= new ActionBarDrawerToggle(this,drawerLayout,toolbar,R.string.app_name,R.string.app_name); 
     drawerLayout.addDrawerListener(toggle); 
     toggle.syncState(); 
    } 
} 

(そのアプリでは、私は単純に入れている私は、他のクラスを示していないが、私は別々のプロジェクトで同じレイアウトを使用しており、そのアプリが完璧に動作します1つのアクティビティ、および1つのフラグメントを意味します> AllSourcesFragment。私はアンドロイドに慣れていないので、このトピックについての良い研究をすることができませんでした。どこが間違っていますか?

+0

多くのコードを減らすと、次回に役立つでしょう – efekctive

答えて

0

このエラーは、一般に、アクティビティが破棄された時点でダイアログが開いたままになっていることを意味します。

どちらか

非同期に動作してダウンローダPostExecuteProgressDialogまたは

Bにdismiss()を呼び出す前に、a)は、あなたのフラグメントが実際に破壊されている)は、おそらくあなたのdoInBackgrounddownload()呼び出しで無関係なエラー()されますPostExecuteは決して呼び出されません。

後者の場合、ログファイルには基本的なエラーが少し先に表示されます。

this questionも参照してください。

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