Android Recyclerview在活动上正常工作，而AsyncTask在使用片段和崩溃时返回空值
以下所有代码都在活动上正常工作，但在尝试使用片段后，调试器显示它首先尝试调用片段，然后尝试不正确地执行AsyncTask类，这会导致崩溃，并且无法从API获取输入流值。我搜索了与我的问题相关的不同文章，但如果你愿意，我想在这里接受建议，以下是我的代码： activity_main.xml文件代码行（其中包含将添加或替换片段的容器）： 活动上正在膨胀的MainFragment java文件：Android Recyclerview在活动上正常工作，而AsyncTask在使用片段和崩溃时返回空值,android,android-fragments,android-asynctask,android-fragmentactivity,Android,Android Fragments,Android Asynctask,Android Fragmentactivity,以下所有代码都在活动上正常工作，但在尝试使用片段后，调试器显示它首先尝试调用片段，然后尝试不正确地执行AsyncTask类，这会导致崩溃，并且无法从API获取输入流值。我搜索了与我的问题相关的不同文章，但如果你愿意，我想在这里接受建议，以下是我的代码： activity_main.xml文件代码行（其中包含将添加或替换片段的容器）： 活动上正在膨胀的MainFragment java文件： package com.example.prof_mohamedatef.tabletfragments;
package com.example.prof_mohamedatef.tabletfragments;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
/**
* Created by Prof-Mohamed Atef on 9/8/2016.
*/
public class MainFragment extends android.app.Fragment{
private static final String TAG = "RecyclerViewFragment";
public MainFragment() {}
RecyclerView mRecyclerView;
public ImagesAdapter mAdapter;
ArrayList<MovieEntity> list = new ArrayList<MovieEntity>();
final String now = "http://api.themoviedb.org/3/movie/popular?api_key=868bebbf76a3831f11b3985c703cf959";
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
update_START();
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater,
@Nullable ViewGroup container,
@Nullable Bundle savedInstanceState) {
View rootView=inflater.inflate(R.layout.main_fragment,container,false);
rootView.setTag(TAG);
mRecyclerView = (RecyclerView)rootView.findViewById(R.id.card_recycler_view);
// mRecyclerView.setHasFixedSize(true);
RecyclerView.LayoutManager layoutManager = new GridLayoutManager(getActivity(), 2);
mRecyclerView.setLayoutManager(layoutManager);
mRecyclerView.setAdapter(mAdapter);
return rootView;
}
private void update_START() {
Fetch_Moview_data f_m_data = new Fetch_Moview_data();
f_m_data.execute(now);
}
public String main_List = "results";
public String POSTER_PATH = "poster_path";
public String VIDEO_ID = "id";
public String TITLE = "title";
public String OVERVIEW = "overview";
public String RELEASE_DATE = "release_date";
public String POPULARITY = "popularity";
public String VOTE_AVERAGE_="vote_average";
public String POSTER_PATH_STRING;
public String VIDEO_ID_STRING;
public String TITLE_STRING;
public String OVERVIEW_STRING;
public String RELEASE_DATE_STRING;
public String POPULARITY_STRING;
public String VOTE_AVERAGE_STRING;
public JSONObject MoviesJson;
public JSONArray moviesDataArray;
public JSONObject oneMovieData;
public class Fetch_Moview_data extends AsyncTask<String, Void, ArrayList<MovieEntity>> {
private final String LOG_TAG = Fetch_Moview_data.class.getSimpleName();
private ArrayList<MovieEntity> getMovieDataFromJson(String MoviesJsonStr)
throws JSONException {
MoviesJson = new JSONObject(MoviesJsonStr);
moviesDataArray = MoviesJson.getJSONArray(main_List);
list.clear();
for (int i = 0; i < moviesDataArray.length(); i++) {
// Get the JSON object representing a movie per each loop
oneMovieData = moviesDataArray.getJSONObject(i);
POSTER_PATH_STRING = oneMovieData.getString(POSTER_PATH);
VIDEO_ID_STRING = oneMovieData.getString(VIDEO_ID);
TITLE_STRING = oneMovieData.getString(TITLE);
OVERVIEW_STRING = oneMovieData.getString(OVERVIEW);
RELEASE_DATE_STRING = oneMovieData.getString(RELEASE_DATE);
POPULARITY_STRING = oneMovieData.getString(POPULARITY);
VOTE_AVERAGE_STRING=oneMovieData.getString(VOTE_AVERAGE_);
mAdapter=null;
MovieEntity entity = new MovieEntity(POSTER_PATH_STRING, VIDEO_ID_STRING, TITLE_STRING, OVERVIEW_STRING, RELEASE_DATE_STRING, POPULARITY_STRING,VOTE_AVERAGE_STRING);
list.add(entity);
}
return list;
}
@Override
protected ArrayList<MovieEntity> doInBackground(String... params) {
String Movies_images_JsonSTR = null;
HttpURLConnection urlConnection = null;
BufferedReader reader = null;
if (params.length == 0) {
return null;
}
try {
URL url = new URL(params[0]);
urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.connect();
InputStream inputStream = urlConnection.getInputStream();
StringBuffer buffer = new StringBuffer();
if (inputStream == null) {
Movies_images_JsonSTR = null;
}
reader = new BufferedReader(new InputStreamReader(inputStream));
String line;
while ((line = reader.readLine()) != null) {
buffer.append(line + "\n");
}
if (buffer.length() == 0) {
return null;
}
Movies_images_JsonSTR = buffer.toString();
Log.v(LOG_TAG, "Movies JSON String: " + Movies_images_JsonSTR);
} catch (IOException e) {
Log.e(LOG_TAG, "Error here Exactly ", e);
return null;
} finally {
if (urlConnection != null) {
urlConnection.disconnect();
}
if (reader != null) {
try {
reader.close();
} catch (final IOException e) {
Log.e(LOG_TAG, "Error closing stream", e);
}
}else {
Log.v(LOG_TAG, "Reader = null ( No Input Stream ) ");
}
}
try {
return getMovieDataFromJson(Movies_images_JsonSTR);
} catch (JSONException e) {
Log.e(LOG_TAG, "didn't got Movies Data from getJsonData method", e);
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(ArrayList<MovieEntity> result) {
mAdapter=null;
list=result;
mAdapter = new ImagesAdapter(getContext(), result);
mRecyclerView.setAdapter(mAdapter);
}
}
}
E/dalvikvm: **Could not find class 'android.util.ArrayMap'**, referenced from method com.android.tools.fd.runtime.MonkeyPatcher.monkeyPatchExistingResources
09-09 21:04:48.351 26794-26794/com.example.prof_mohamedatef.tabletfragments W/dalvikvm: VFY: unable to resolve check-cast 2079 (Landroid/util/ArrayMap;) in Lcom/android/tools/fd/runtime/MonkeyPatcher;
09-09 21:04:48.351 26794-26794/com.example.prof_mohamedatef.tabletfragments D/dalvikvm: VFY: replacing opcode 0x1f at 0x0258
09-09 21:04:48.361 26794-26794/com.example.prof_mohamedatef.tabletfragments E/dalvikvm: Could not find class 'android.util.ArrayMap', referenced from method com.android.tools.fd.runtime.MonkeyPatcher.pruneResourceCacheandroid.app.Fragment.setAllowEnterTransitionOverlap, referenced from method com.example.prof_mohamedatef.tabletfragments.MainFragment.access$super
09-09 21:04:49.061 26794-26794/com.example.prof_mohamedatef.tabletfragments W/dalvikvm: VFY: unable to resolve virtual method 377: Landroid/app/Fragment;.setAllowEnterTransitionOverlap (Z)V
09-09 21:04:49.061 26794-26794/com.example.prof_mohamedatef.tabletfragments D/dalvikvm: VFY: replacing opcode 0x6f at 0x03d8
09-09 21:04:49.061 26794-26794/com.example.prof_mohamedatef.tabletfragments I/dalvikvm: **Could not find method android.app.Fragment.onInflate**, referenced from method com.example.prof_mohamedatef.tabletfragments.MainFragment.access$super
09-09 21:04:49.061 26794-26794/com.example.prof_mohamedatef.tabletfragments W/dalvikvm: VFY: unable to resolve virtual method 358: Landroid/app/Fragment;.onInflate (Landroid/content/Context;Landroid/util/AttributeSet;Landroid/os/Bundle;)V
09-09 21:04:49.061 26794-26794/com.example.prof_mohamedatef.tabletfragments D/dalvikvm: VFY: replacing opcode 0x6f at 0x0468
09-09 21:04:49.061 26794-26794/com.example.prof_mohamedatef.tabletfragments I/dalvikvm: Could not find method android.app.Fragment.getEnterTransition, referenced from method com.example.prof_mohamedatef.tabletfragments.MainFragment.access$super
09-09 21:04:49.061 26794-26794/com.example.prof_mohamedatef.tabletfragments W/dalvikvm: VFY: unable to resolve virtual method 311: Landroid/app/Fragment;.getEnterTransition ()Landroid/transition/Transition;
09-09 21:04:49.061 26794-26794/com.example.prof_mohamedatef.tabletfragments D/dalvikvm: VFY: replacing opcode 0x6f at 0x0499
09-09 21:04:49.071 26794-26794/com.example.prof_mohamedatef.tabletfragments E/dalvikvm: **Could not find class 'android.transition.Transition', referenced from method** com.example.prof_mohamedatef.tabletfragments.MainFragment.access$super
09-09 21:04:49.071 26794-26794/com.example.prof_mohamedatef.tabletfragments W/dalvikvm: VFY: unable to resolve check-cast 2075 (Landroid/transition/Transition;) in Lcom/example/prof_mohamedatef/tabletfragments/MainFragment;
09-09 21:04:49.071 26794-26794/com.example.prof_mohamedatef.tabletfragments D/dalvikvm: VFY: replacing opcode 0x1f at 0x04b5
09-09 21:04:49.071 26794-26794/com.example.prof_mohamedatef.tabletfragments I/dalvikvm: Could not find method **android.app.Fragment.getAllowEnterTransitionOverlap**, referenced from method com.example.prof_mohamedatef.tabletfragments.MainFragment.access$super
09-09 21:04:49.071 26794-26794/com.example.prof_mohamedatef.tabletfragments W/dalvikvm: VFY: unable to resolve virtual method 306: Landroid/app/Fragment;.getAllowEnterTransitionOverlap ()Z
09-09 21:04:49.071 26794-26794/com.example.prof_mohamedatef.tabletfragments D/dalvikvm: VFY: replacing opcode 0x6f at 0x04c9
09-11 14:25:14.968 3547-3714/com.example.prof_mohamedatef.tabletfragments E/AndroidRuntime: FATAL EXCEPTION: AsyncTask #1
Process: com.example.prof_mohamedatef.tabletfragments, PID: 3547
java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:309)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.SecurityException: Permission denied (missing INTERNET permission?)
at java.net.InetAddress.lookupHostByName(InetAddress.java:464)
at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
at java.net.InetAddress.getAllByName(InetAddress.java:215)
at com.android.okhttp.internal.Network$1.resolveInetAddresses(Network.java:29)
at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:188)
at com.android.okhttp.internal.http.RouteSelector.nextProxy(RouteSelector.java:157)
at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:100)
at com.android.okhttp.internal.http.HttpEngine.createNextConnection(HttpEngine.java:357)
at com.android.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:340)
at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:330)
at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:248)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:433)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:114)
at com.example.prof_mohamedatef.tabletfragments.MainFragment$Fetch_Movies_data.doInBackground(MainFragment.java:175)
at com.example.prof_mohamedatef.tabletfragments.MainFragment$Fetch_Movies_data.doInBackground(MainFragment.java:125)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: android.system.GaiException: android_getaddrinfo failed: EAI_NODATA (No address associated with hostname)
at libcore.io.Posix.android_getaddrinfo(Native Method)
at libcore.io.ForwardingOs.android_getaddrinfo(ForwardingOs.java:55)
at java.net.InetAddress.lookupHostByName(InetAddress.java:451)
at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
at java.net.InetAddress.getAllByName(InetAddress.java:215)
at com.android.okhttp.internal.Network$1.resolveInetAddresses(Network.java:29)
at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:188)
at com.android.okhttp.internal.http.RouteSelector.nextProxy(RouteSelector.java:157)
at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:100)
at com.android.okhttp.internal.http.HttpEngine.createNextConnection(HttpEngine.java:357)
at com.android.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:340)
at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:330)
at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:248)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:433)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:114)
at com.example.prof_mohamedatef.tabletfragments.MainFragment$Fetch_Movies_data.doInBackground(MainFragment.java:175)
at com.example.prof_mohamedatef.tabletfragments.MainFragment$Fetch_Movies_data.doInBackground(MainFragment.java:125)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: android.system.ErrnoException: android_getaddrinfo failed: EACCES (Permission denied)
at libcore.io.Posix.android_getaddrinfo(Native Method)
at libcore.io.ForwardingOs.android_getaddrinfo(ForwardingOs.java:55)
at java.net.InetAddress.lookupHostByName(InetAddress.java:451)
at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
at java.net.InetAddress.getAllByName(InetAddress.java:215)
at com.android.okhttp.internal.Network$1.resolveInetAddresses(Network.java:29)
at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:188)
at com.android.okhttp.internal.http.RouteSelector.nextProxy(RouteSelector.java:157)
at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:100)
at com.android.okhttp.internal.http.HttpEngine.createNextConnection(HttpEngine.java:357)
at com.android.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:340)
at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:330)
at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:248)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:433)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:114)
at com.example.prof_mohamedatef.tabletfragments.MainFragment$Fetch_Movies_data.doInBackground(MainFragment.java:175)
at com.example.prof_mohamedatef.tabletfragments.MainFragment$Fetch_Movies_data.doInBackground(MainFragment.java:125)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.SecurityException: Permission denied (missing INTERNET permission?)
错误非常简单： 找不到类'android.util.ArrayMap表示编译器找不到它需要的android类。这不是推理或代码中的错误，而是设置问题。再次检查：
import android.util.ArrayMap让我知道它是否有效我的清单中缺少Internet权限，只需添加：
<uses-permission android:name="android.permission.INTERNET" />
然后一切都会正常运行知道您遇到的是什么类型的崩溃以及发生在哪一行将非常有帮助。我无法确定异常的类型多么奇怪。。。对不起，我帮不了你。好luck@Chisko请注意第二次编辑，可能会带来一些有用的资源。我的SDK路径是正确的2。我的SDK是最新的3。我的应用程序的build.gradle文件使用：3.1编译SDK版本24-3.2 buildToolsVersion“24.0.2”-3.3分钟DKVersion 15-3.4 targetSdkVersion 24-最后，我导入了（导入android.support.v4.util.ArrayMap；），它在我的文件中不可用。。。同样的问题出现了，它还没有被解决..对不起，亲爱的，我的清单中没有使用互联网权限。谢谢你提到最初的问题
09-11 14:25:14.968 3547-3714/com.example.prof_mohamedatef.tabletfragments E/AndroidRuntime: FATAL EXCEPTION: AsyncTask #1
Process: com.example.prof_mohamedatef.tabletfragments, PID: 3547
java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:309)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.SecurityException: Permission denied (missing INTERNET permission?)
at java.net.InetAddress.lookupHostByName(InetAddress.java:464)
at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
at java.net.InetAddress.getAllByName(InetAddress.java:215)
at com.android.okhttp.internal.Network$1.resolveInetAddresses(Network.java:29)
at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:188)
at com.android.okhttp.internal.http.RouteSelector.nextProxy(RouteSelector.java:157)
at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:100)
at com.android.okhttp.internal.http.HttpEngine.createNextConnection(HttpEngine.java:357)
at com.android.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:340)
at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:330)
at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:248)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:433)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:114)
at com.example.prof_mohamedatef.tabletfragments.MainFragment$Fetch_Movies_data.doInBackground(MainFragment.java:175)
at com.example.prof_mohamedatef.tabletfragments.MainFragment$Fetch_Movies_data.doInBackground(MainFragment.java:125)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: android.system.GaiException: android_getaddrinfo failed: EAI_NODATA (No address associated with hostname)
at libcore.io.Posix.android_getaddrinfo(Native Method)
at libcore.io.ForwardingOs.android_getaddrinfo(ForwardingOs.java:55)
at java.net.InetAddress.lookupHostByName(InetAddress.java:451)
at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
at java.net.InetAddress.getAllByName(InetAddress.java:215)
at com.android.okhttp.internal.Network$1.resolveInetAddresses(Network.java:29)
at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:188)
at com.android.okhttp.internal.http.RouteSelector.nextProxy(RouteSelector.java:157)
at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:100)
at com.android.okhttp.internal.http.HttpEngine.createNextConnection(HttpEngine.java:357)
at com.android.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:340)
at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:330)
at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:248)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:433)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:114)
at com.example.prof_mohamedatef.tabletfragments.MainFragment$Fetch_Movies_data.doInBackground(MainFragment.java:175)
at com.example.prof_mohamedatef.tabletfragments.MainFragment$Fetch_Movies_data.doInBackground(MainFragment.java:125)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: android.system.ErrnoException: android_getaddrinfo failed: EACCES (Permission denied)
at libcore.io.Posix.android_getaddrinfo(Native Method)
at libcore.io.ForwardingOs.android_getaddrinfo(ForwardingOs.java:55)
at java.net.InetAddress.lookupHostByName(InetAddress.java:451)
at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
at java.net.InetAddress.getAllByName(InetAddress.java:215)
at com.android.okhttp.internal.Network$1.resolveInetAddresses(Network.java:29)
at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:188)
at com.android.okhttp.internal.http.RouteSelector.nextProxy(RouteSelector.java:157)
at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:100)
at com.android.okhttp.internal.http.HttpEngine.createNextConnection(HttpEngine.java:357)
at com.android.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:340)
at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:330)
at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:248)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:433)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:114)
at com.example.prof_mohamedatef.tabletfragments.MainFragment$Fetch_Movies_data.doInBackground(MainFragment.java:175)
at com.example.prof_mohamedatef.tabletfragments.MainFragment$Fetch_Movies_data.doInBackground(MainFragment.java:125)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.SecurityException: Permission denied (missing INTERNET permission?)
<uses-permission android:name="android.permission.INTERNET" />