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E/AndroidRuntime: FATAL EXCEPTION: main java.lang.IndexOutOfBoundsException: Index: 0, Size: 0

Here, i got some Error in my Adapter so my MainActivity is Getting error too, please help me.
This is my Log :
I/om.azhar.myblo: ProcessProfilingInfo new_methods=1723 is saved saved_to_disk=1 resolve_classes_delay=8000
W/om.azhar.myblo: Accessing hidden method Lcom/android/org/conscrypt/OpenSSLSocketImpl;->setAlpnProtocols([B)V (light greylist, reflection)
W/om.azhar.myblo: Accessing hidden method Lcom/android/org/conscrypt/OpenSSLSocketImpl;->getAlpnSelectedProtocol()[B (light greylist, reflection)
I/Choreographer: Skipped 84 frames! The application may be doing too much work on its main thread.
I/OpenGLRenderer: Davey! duration=1524ms; Flags=0, IntendedVsync=169077289183748, Vsync=169078689183692, OldestInputEvent=9223372036854775807, NewestInputEvent=0, HandleInputStart=169078696730293, AnimationStart=169078696978939, PerformTraversalsStart=169078696988835, DrawStart=169078713999512, SyncQueued=169078752086647, SyncStart=169078752488314, IssueDrawCommandsStart=169078752806804, SwapBuffers=169078812757116, FrameCompleted=169078814205293, DequeueBufferDuration=507000, QueueBufferDuration=536000,
I/Timeline: Timeline: Activity_launch_request time:169088627
W/ActivityThread: handleWindowVisibility: no activity for token android.os.BinderProxy#ab1ed04
E/RecyclerView: No adapter attached; skipping layout
I/OpenGLRenderer: Davey! duration=701ms; Flags=1, IntendedVsync=169088700935236, Vsync=169089184268550, OldestInputEvent=9223372036854775807, NewestInputEvent=0, HandleInputStart=169089199336435, AnimationStart=169089199481696, PerformTraversalsStart=169089202371018, DrawStart=169089396891487, SyncQueued=169089398607789, SyncStart=169089398712008, IssueDrawCommandsStart=169089398917268, SwapBuffers=169089400846643, FrameCompleted=169089402298935, DequeueBufferDuration=311000, QueueBufferDuration=499000,
I/om.azhar.myblo: Compiler allocated 4MB to compile void android.widget.TextView.(android.content.Context, android.util.AttributeSet, int, int)
W/Glide: Failed to find GeneratedAppGlideModule. You should include an annotationProcessor compile dependency on com.github.bumptech.glide:compiler in your application and a #GlideModule annotated AppGlideModule implementation or LibraryGlideModules will be silently ignored
D/AndroidRuntime: Shutting down VM
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.azhar.myblog, PID: 8439
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.get(ArrayList.java:437)
at com.azhar.myblog.adapter.MainAdapter.onBindViewHolder(MainAdapter.java:60)
at com.azhar.myblog.adapter.MainAdapter.onBindViewHolder(MainAdapter.java:28)
at androidx.recyclerview.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:7065)
at androidx.recyclerview.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:7107)
at androidx.recyclerview.widget.RecyclerView$Recycler.tryBindViewHolderByDeadline(RecyclerView.java:6012)
at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:6279)
at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6118)
at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6114)
at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2303)
at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1627)
at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1587)
at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:665)
at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:4134)
at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:3851)
at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:4404)
at android.view.View.layout(View.java:20710)
at android.view.ViewGroup.layout(ViewGroup.java:6198)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1083)
at android.view.View.layout(View.java:20710)
at android.view.ViewGroup.layout(ViewGroup.java:6198)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1083)
at android.view.View.layout(View.java:20710)
at android.view.ViewGroup.layout(ViewGroup.java:6198)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:20710)
at android.view.ViewGroup.layout(ViewGroup.java:6198)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1812)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1656)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1565)
at android.view.View.layout(View.java:20710)
at android.view.ViewGroup.layout(ViewGroup.java:6198)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:20710)
at android.view.ViewGroup.layout(ViewGroup.java:6198)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1812)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1656)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1565)
at android.view.View.layout(View.java:20710)
at android.view.ViewGroup.layout(ViewGroup.java:6198)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at com.android.internal.policy.DecorView.onLayout(DecorView.java:757)
at android.view.View.layout(View.java:20710)
at android.view.ViewGroup.layout(ViewGroup.java:6198)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2871)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2398)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1534)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7420)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1100)
at android.view.Choreographer.doCallbacks(Choreographer.java:895)
at android.view.Choreographer.doFrame(Choreographer.java:826)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1086)
at android.os.Handler.handleCallback(Handler.java:873)
E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:201)
at android.app.ActivityThread.main(ActivityThread.java:6861)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873)
I/Process: Sending signal. PID: 8439 SIG: 9
Here my Adapter :
package com.azhar.myblog.adapter;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import androidx.recyclerview.widget.RecyclerView;
import com.azhar.myblog.model.ModelMain;
import com.azhar.myblog.R;
import com.bumptech.glide.Glide;
import com.bumptech.glide.load.engine.DiskCacheStrategy;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.select.Elements;
import java.util.List;
public class MainAdapter extends RecyclerView.Adapter<MainAdapter.ViewHolder> {
private List<ModelMain> items;
private MainAdapter.onSelectData onSelectData;
private Context mContext;
public interface onSelectData {
void onSelected(ModelMain modelListLagu);
}
public MainAdapter(Context context, List<ModelMain> items, MainAdapter.onSelectData xSelectData) {
this.mContext = context;
this.items = items;
this.onSelectData = xSelectData;
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item_artikel, parent, false);
return new ViewHolder(v);
}
#Override
public void onBindViewHolder(ViewHolder holder, int position) {
final ModelMain data = items.get(position);
//Get Image
Document document = Jsoup.parse(data.getContent());
Elements element = document.select("img");
Glide.with(mContext)
// .load(element.get(0).attr("src"))
.load(element.get(0).attr("src"))
.diskCacheStrategy(DiskCacheStrategy.ALL)
.fitCenter()
.into(holder.imgThumb);
Glide.with(mContext)
.load(data.getAuthorImage())
.diskCacheStrategy(DiskCacheStrategy.ALL)
.fitCenter()
.into(holder.imgAuthor);
holder.tvTitle.setText(data.getTitle());
holder.tvAuthor.setText(data.getAuthor());
holder.tvDatePost.setText(data.getPublished());
holder.rlArtikel.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
onSelectData.onSelected(data);
}
});
}
#Override
public int getItemCount() {
return items.size();
}
//Class Holder
class ViewHolder extends RecyclerView.ViewHolder {
public TextView tvTitle;
public TextView tvAuthor;
public TextView tvDatePost;
public RelativeLayout rlArtikel;
public ImageView imgThumb;
public ImageView imgAuthor;
public ViewHolder(View itemView) {
super(itemView);
rlArtikel = itemView.findViewById(R.id.rlArtikel);
imgThumb = itemView.findViewById(R.id.imgThumb);
imgAuthor = itemView.findViewById(R.id.imgAuthor);
tvTitle = itemView.findViewById(R.id.tvTitle);
tvAuthor = itemView.findViewById(R.id.tvAuthor);
tvDatePost = itemView.findViewById(R.id.tvDatePost);
}
}
}
And here my MainActivity :
package com.azhar.myblog.activities
import android.app.ProgressDialog
import android.content.Intent
import android.net.Uri
import android.os.Bundle
import android.view.View
import android.widget.LinearLayout
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView
import com.androidnetworking.AndroidNetworking
import com.androidnetworking.common.Priority
import com.androidnetworking.error.ANError
import com.androidnetworking.interfaces.JSONObjectRequestListener
import com.azhar.myblog.R
import com.azhar.myblog.adapter.MainAdapter
import com.azhar.myblog.adapter.MainAdapter.onSelectData
import com.azhar.myblog.model.ModelMain
import com.azhar.myblog.networking.BloggerApi
import com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
import kotlinx.android.synthetic.main.activity_main.*
import org.json.JSONException
import org.json.JSONObject
import java.text.ParseException
import java.text.SimpleDateFormat
import java.util.*
class MainActivity : AppCompatActivity(), onSelectData {
var mainAdapter: MainAdapter? = null
var mProgressBar: ProgressDialog? = null
var modelMain: MutableList<ModelMain> = ArrayList()
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
mProgressBar = ProgressDialog(this)
mProgressBar!!.setTitle("Mohon Tunggu")
mProgressBar!!.setCancelable(false)
mProgressBar!!.setMessage("Sedang menampilkan data...")
llAbout.setOnClickListener {
startActivity(Intent(this#MainActivity, AboutActivity::class.java)) }
llPP.setOnClickListener {
startActivity(Intent(this#MainActivity, PrivacyPolicyActivity::class.java)) }
llDisclaimer.setOnClickListener {
startActivity(Intent(this#MainActivity, DisclaimerActivity::class.java)) }
// fabSource.setOnClickListener {
// val intent = Intent(Intent.ACTION_VIEW)
// intent.data = Uri.parse("https://github.com/AzharRivaldi")
// startActivity(intent)
// }
rvListArticles.setHasFixedSize(true)
rvListArticles.setLayoutManager(LinearLayoutManager(this))
//get data
listArticle
}
private val listArticle: Unit
private get() {
mProgressBar!!.show()
AndroidNetworking.get(BloggerApi.ListPost)
.setPriority(Priority.MEDIUM)
.build()
.getAsJSONObject(object : JSONObjectRequestListener {
override fun onResponse(response: JSONObject) {
try {
mProgressBar!!.dismiss()
val playerArray = response.getJSONArray("items")
for (i in 0 until playerArray.length()) {
val jsonObject1 = playerArray.getJSONObject(i)
val dataApi = ModelMain()
dataApi.title = jsonObject1.getString("title")
dataApi.content = jsonObject1.getString("content")
dataApi.labels = jsonObject1.getString("labels")
dataApi.url = jsonObject1.getString("url")
val datePost = jsonObject1.getString("published")
val inputFormat = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss")
val outputFormat = SimpleDateFormat("dd-MM-yyyy")
val date = inputFormat.parse(datePost)
val datePostConvert = outputFormat.format(date)
dataApi.published = datePostConvert
val jsonObject2 = jsonObject1.getJSONObject("author")
val authorPost = jsonObject2.getString("displayName")
dataApi.author = authorPost
val jsonObject3 = jsonObject2.getJSONObject("image")
val authorImage = jsonObject3.getString("url")
dataApi.authorImage = Uri.parse("http:$authorImage").toString()
modelMain.add(dataApi)
showListArticle()
}
} catch (e: JSONException) {
e.printStackTrace()
Toast.makeText(this#MainActivity,
"Gagal menampilkan data!", Toast.LENGTH_SHORT).show()
} catch (e: ParseException) {
e.printStackTrace()
Toast.makeText(this#MainActivity,
"Gagal menampilkan data!", Toast.LENGTH_SHORT).show()
}
}
override fun onError(anError: ANError) {
mProgressBar!!.dismiss()
Toast.makeText(this#MainActivity,
"Tidak ada jaringan internet!", Toast.LENGTH_SHORT).show()
}
})
}
private fun showListArticle() {
mainAdapter = MainAdapter(this#MainActivity, modelMain, this)
rvListArticles!!.adapter = mainAdapter
}
override fun onSelected(modelMain: ModelMain) {
val intent = Intent(this#MainActivity, DetailArtikelActivity::class.java)
intent.putExtra("detailArtikel", modelMain)
startActivity(intent)
}
}

Looks that the element.get(0) is the problem. I assume not all items in your adapter contains the img property. You should check if the img exists before getting it.

MainActivity cannot be cast to Fragment

Im working on this project. When i run the program it have some runtime errors and app does not appears in emulator. it show the message app stopped. I think there is a error in OnAttach method. I tried many ways to solve the issue but nothing works.I'm new to Android development please help me to solve the issue.
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.user.workout, PID: 26059
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.user.workout/com.example.user.workout.MainActivity}: android.view.InflateException: Binary XML file line #10: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2534)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2614)
at android.app.ActivityThread.access$800(ActivityThread.java:178)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1470)
at android.os.Handler.dispatchMessage(Handler.java:111)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5643)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
Caused by: android.view.InflateException: Binary XML file line #10: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:763)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at com.example.user.workout.MainActivity.onCreate(MainActivity.java:14)
at android.app.Activity.performCreate(Activity.java:6100)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1112)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2481)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2614) 
at android.app.ActivityThread.access$800(ActivityThread.java:178) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1470) 
at android.os.Handler.dispatchMessage(Handler.java:111) 
at android.os.Looper.loop(Looper.java:194) 
at android.app.ActivityThread.main(ActivityThread.java:5643) 
at java.lang.reflect.Method.invoke(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:372) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755) 
Caused by: java.lang.ClassCastException: com.example.user.workout.MainActivity cannot be cast to com.example.user.workout.WorkoutListFragment$WorkoutListListener
at com.example.user.workout.WorkoutListFragment.onAttach(WorkoutListFragment.java:53)
at android.support.v4.app.Fragment.onAttach(Fragment.java:1340)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1372)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1659)
at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1905)
at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:3715)
at android.support.v4.app.FragmentController.onCreateView(FragmentController.java:114)
at android.support.v4.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:374)
at android.support.v4.app.BaseFragmentActivityApi14.onCreateView(BaseFragmentActivityApi14.java:39)
at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:68)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:733)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:806) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:504) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:414) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:365) 
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287) 
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139) 
at com.example.user.workout.MainActivity.onCreate(MainActivity.java:14) 
at android.app.Activity.performCreate(Activity.java:6100) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1112) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2481) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2614) 
at android.app.ActivityThread.access$800(ActivityThread.java:178) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1470) 
at android.os.Handler.dispatchMessage(Handler.java:111) 
at android.os.Looper.loop(Looper.java:194) 
at android.app.ActivityThread.main(ActivityThread.java:5643) 
at java.lang.reflect.Method.invoke(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:372) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755) 
package com.example.user.workout;
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.app.ListFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
public class WorkoutListFragment extends ListFragment {
static interface WorkoutListListener{
void itemClicked(long id);
};
private WorkoutListListener listener;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
String [] names = new String[Workout.workouts.length];
for(int i =0; i < names.length;i++)
{
names[i] = Workout.workouts[i].getName();
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
inflater.getContext(), android.R.layout.simple_list_item_1,names);
setListAdapter(adapter);
return super.onCreateView(inflater, container, savedInstanceState);
}
#Override
public void onAttach(Activity activity)
{
super.onAttach(activity);
this.listener = (WorkoutListListener)activity;
}
#Override
public void onListItemClick(ListView l, View v, int position, long id)
{
if(listener!=null)
{
listener.itemClicked(id);
}
}
}
package com.example.user.workout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void itemClicked(long id)
{
WorkoutDetialFragment detials = new WorkoutDetialFragment();
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
detials.setWorkoutId(id);
ft.replace(R.id.fragment_container,detials);
ft.addToBackStack(null);
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.commit();
}
}

Your activity should implement *WorkoutListListener* interface and override its method itemClicked().
public class MainActivity extends AppCompatActivity implements WorkoutListListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
#Override
public void itemClicked(long id){
// handle your click here
}
}

java.lang.NullPointerException: uriString

I am a newbie and trying to create a video player .I am getting a null pointer exception and have read all the questions on SO and searched google related to it and read it. thumbpath doesn't seem null to me although it maybe the only reason of this exception. Can anyone help me with it ? Thanks
SDVideos.java
package com.example.dell_1.myapp3;
import android.app.Activity;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
public class SDVideos extends Activity
{
private Cursor videoCursor;
private int videoColumnIndex;
ListView videolist;
int count;
String thumbPath;
String[] thumbColumns = { MediaStore.Video.Thumbnails.DATA,MediaStore.Video.Thumbnails.VIDEO_ID };
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sdvideos);
initialization();
}
private void initialization()
{
System.gc();
String[] videoProjection = { MediaStore.Video.Media._ID,MediaStore.Video.Media.DATA,
MediaStore.Video.Media.DISPLAY_NAME,MediaStore.Video.Media.SIZE };
videoCursor =getContentResolver().query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI,videoProjection, null, null, null);
count = videoCursor.getCount();
videolist = (ListView) findViewById(R.id.PhoneVideoList);
videolist.setAdapter(new VideoListAdapter(this.getApplicationContext()));
videolist.setOnItemClickListener(videogridlistener);
}
private AdapterView.OnItemClickListener videogridlistener = new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView parent, View v, int position, long id)
{
videoColumnIndex = videoCursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
videoCursor.moveToPosition(position);
String filename = videoCursor.getString(videoColumnIndex);
Log.i("FileName: ", filename);
//Intent intent = new Intent(VideoActivity.this, ViewVideo.class);
//intent.putExtra("videofilename", filename);
//startActivity(intent);
}};
public class VideoListAdapter extends BaseAdapter
{
private Context vContext;
public VideoListAdapter(Context c)
{
vContext = c;
}
public int getCount()
{
return videoCursor.getCount();
}
public Object getItem(int position)
{
return position;
}
public long getItemId(int position)
{
return position;
}
public View getView(int position, View convertView, ViewGroup parent)
{
View listItemRow;
listItemRow = LayoutInflater.from(vContext).inflate(R.layout.listitem, parent, false);
TextView txtTitle = (TextView)listItemRow.findViewById(R.id.txtTitle);
TextView txtSize = (TextView)listItemRow.findViewById(R.id.txtSize);
ImageView thumbImage = (ImageView)listItemRow.findViewById(R.id.imgIcon);
videoColumnIndex = videoCursor.getColumnIndexOrThrow(MediaStore.Video.Media.DISPLAY_NAME);
videoCursor.moveToPosition(position);
txtTitle.setText(videoCursor.getString(videoColumnIndex));
videoColumnIndex = videoCursor.getColumnIndexOrThrow(MediaStore.Video.Media.SIZE);
videoCursor.moveToPosition(position);
txtSize.setText(" Size(KB):" + videoCursor.getString(videoColumnIndex));
int videoId = videoCursor.getInt(videoCursor.getColumnIndexOrThrow(MediaStore.Video.Media._ID));
Cursor videoThumbnailCursor =getContentResolver().query(MediaStore.Video.Thumbnails.EXTERNAL_CONTENT_URI,
thumbColumns, MediaStore.Video.Thumbnails.VIDEO_ID+ "=" + videoId, null, null);
if (videoThumbnailCursor.moveToFirst())
{
thumbPath = videoThumbnailCursor.getString(videoThumbnailCursor.getColumnIndex(MediaStore.Video.Thumbnails.DATA));
Log.i("ThumbPath: ",thumbPath);
}
thumbImage.setImageURI(Uri.parse(thumbPath));
return listItemRow;
}
}
}
XML File :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ListView
android:id="#+id/PhoneVideoList"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:divider="#242424"
android:dividerHeight="1dp"/>
</LinearLayout>
LOGCAT :
08-05 17:29:17.109 17708-17708/com.example.dell_1.myapp3 E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.dell_1.myapp3, PID: 17708
java.lang.NullPointerException: uriString
at android.net.Uri$StringUri.<init>(Uri.java:475)
at android.net.Uri$StringUri.<init>(Uri.java)
at android.net.Uri.parse(Uri.java:437)
at com.example.dell_1.myapp3.SDVideos$VideoListAdapter.getView(SDVideos.java:112)
at android.widget.AbsListView.obtainView(AbsListView.java:2367)
at android.widget.ListView.makeAndAddView(ListView.java:1972)
at android.widget.ListView.fillDown(ListView.java:704)
at android.widget.ListView.fillFromTop(ListView.java:765)
at android.widget.ListView.layoutChildren(ListView.java:1744)
at android.widget.AbsListView.onLayout(AbsListView.java:2161)
at android.view.View.layout(View.java:17523)
at android.view.ViewGroup.layout(ViewGroup.java:5618)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1494)
at android.view.View.layout(View.java:17523)
at android.view.ViewGroup.layout(ViewGroup.java:5618)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:17523)
at android.view.ViewGroup.layout(ViewGroup.java:5618)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1494)
at android.view.View.layout(View.java:17523)
at android.view.ViewGroup.layout(ViewGroup.java:5618)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at com.android.internal.policy.DecorView.onLayout(DecorView.java:724)
at android.view.View.layout(View.java:17523)
at android.view.ViewGroup.layout(ViewGroup.java:5618)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2374)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2101)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1278)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6357)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:871)
at android.view.Choreographer.doCallbacks(Choreographer.java:683)
at android.view.Choreographer.doFrame(Choreographer.java:619)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:857)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)

I don´t see any reason why thumbPath needs to be an field of SDVideos, it is only used inside VideoListAdapter.getView.
Your updated code of moving thumbPath as a variable would be the following:
int videoId = videoCursor.getInt(videoCursor.getColumnIndexOrThrow(MediaStore.Video.Media._ID));
Cursor videoThumbnailCursor =getContentResolver().query(MediaStore.Video.Thumbnails.EXTERNAL_CONTENT_URI,
thumbColumns, MediaStore.Video.Thumbnails.VIDEO_ID+ "=" + videoId, null, null);
if (videoThumbnailCursor.moveToFirst())
{
String thumbPath = videoThumbnailCursor.getString(videoThumbnailCursor.getColumnIndex(MediaStore.Video.Thumbnails.DATA));
Log.i("ThumbPath: ",thumbPath);
thumbImage.setImageURI(Uri.parse(thumbPath));
}
return listItemRow;
Since the thumbPath will only be populated if the cursor have any data, you can move the setImageURI to inside your if.
This code will solve the NullPointerException, but probably you will not see any image in the thumbImage.
Now you need to find why your videoThumbnailCursor is returning no data. After you find why, please update your question.

Recyclerview not working, app crashed

package com.example.sander.app;
import android.app.Fragment;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.widget.CardView;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
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.FrameLayout;
import android.widget.TextView;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* Created by Sander on 6-4-2017.
*/
public class RecycleFrame extends Fragment {
ArrayList<String> names = new ArrayList<>();
ArrayList<Integer> cPoints = new ArrayList<>();
boolean sort = false;
public RecycleFrame() {
// Required empty public constructor
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.fragment_view, menu);
super.onCreateOptionsMenu(menu,inflater);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
setHasOptionsMenu(true);
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_recycle, container, false);
final RecyclerView VRecyclerView = (RecyclerView) view.findViewById(R.id.rv_recycler_view);
RequestQueue rq = Volley.newRequestQueue(getActivity().getApplicationContext());
String url= "http://test.dontstealmywag.ga/api/parkgarage_all.php";
StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
// Do something with the response
try{
JSONObject o = new JSONObject(response);
JSONArray values=o.getJSONArray("");
for ( int i=0; i< values.length(); i++) {
JSONObject jsonObject = values.getJSONObject(i);
names.add(jsonObject.getString("parkgarage_name"));
cPoints.add(jsonObject.getInt("charging_capacity")); // I want to add this to the recycler viewer
}
} catch (JSONException ex){}
Collections.sort(names);
VRecyclerView.setHasFixedSize(true);
RecycleAdapter adapter = new RecycleAdapter(names, cPoints);
VRecyclerView.setAdapter(adapter);
LinearLayoutManager llm = new LinearLayoutManager(getActivity());
VRecyclerView.setLayoutManager(llm);
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
// Handle error
}
});
rq.add(stringRequest);
return view;
}
}
This is my code for the RecyclerFrame, in here you can see cPoints.add(jsonObject.getInt("charging_capacity")); I want to display this inside the RecyclerViewer, now I can only display the names array.
This is my RecyclerAdapter code:
package com.example.sander.app;
import android.app.Fragment;
import android.media.Image;
import android.os.Bundle;
import android.support.v7.widget.CardView;
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.ImageView;
import android.widget.TextView;
import java.util.ArrayList;
/**
* Created by Sander on 6-4-2017.
*/
public class RecycleAdapter extends RecyclerView.Adapter<RecycleAdapter.MyViewHolder> {
ArrayList<String> ArrayDataset;
ArrayList<Integer> ArrayDataset2;
public static class MyViewHolder extends RecyclerView.ViewHolder{
public CardView mCardView;
public TextView mTextView;
public TextView mTextView2;
public ImageView mImageView;
public MyViewHolder(View v){
super(v);
mCardView = (CardView) v.findViewById(R.id.card_view);
mTextView = (TextView) v.findViewById(R.id.tv_blah);
mTextView2 = (TextView) v.findViewById(R.id.tv_blah2);
mImageView = (ImageView) v.findViewById(R.id.imageView1);
}
}
public RecycleAdapter(ArrayList<String> names, ArrayList<Integer> cPoints){
ArrayDataset = names;
ArrayDataset2= cPoints;
}
#Override
public RecycleAdapter.MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType){
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.fragment_card_view, parent, false);
MyViewHolder vh = new MyViewHolder(v);
return vh;
}
#Override
public void onBindViewHolder(MyViewHolder holder, int position){
holder.mTextView.setText(ArrayDataset.get(position));
holder.mTextView2.setText(ArrayDataset2.get(position));
holder.mImageView.setImageResource(R.drawable.ic_local_parking_black_24dp);
}
#Override
public int getItemCount() { return ArrayDataset.size(); }
}
This is the code I've made sofar but when I open it in my app the app crashed could anyone help me fixing this
Logcat after updating the code
04-07 18:47:59.341 5581-5581/com.example.sander.app E/RecyclerView: No adapter attached; skipping layout
04-07 18:47:59.344 5581-5712/com.example.sander.app D/NetworkSecurityConfig: No Network Security Config specified, using platform default
04-07 18:47:59.493 5581-5581/com.example.sander.app W/ResourceType: No package identifier when getting value for resource number 0x00000000
04-07 18:47:59.493 5581-5581/com.example.sander.app D/AndroidRuntime: Shutting down VM
04-07 18:47:59.494 5581-5581/com.example.sander.app E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.sander.app, PID: 5581
android.content.res.Resources$NotFoundException: String resource ID #0x0
at android.content.res.Resources.getText(Resources.java:335)
at android.widget.TextView.setText(TextView.java:4555)
at com.example.sander.app.RecycleAdapter.onBindViewHolder(RecycleAdapter.java:56)
at com.example.sander.app.RecycleAdapter.onBindViewHolder(RecycleAdapter.java:21)
at android.support.v7.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:6356)
at android.support.v7.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:6389)
at android.support.v7.widget.RecyclerView$Recycler.tryBindViewHolderByDeadline(RecyclerView.java:5335)
at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5598)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5440)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5436)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2224)
at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1551)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1511)
at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:595)
at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3583)
at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3312)
at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3844)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1079)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.support.constraint.ConstraintLayout.onLayout(ConstraintLayout.java:1197)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.support.design.widget.HeaderScrollingViewBehavior.layoutChild(HeaderScrollingViewBehavior.java:131)
at android.support.design.widget.ViewOffsetBehavior.onLayoutChild(ViewOffsetBehavior.java:42)
at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onLayoutChild(AppBarLayout.java:1391)
at android.support.design.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:870)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:1193)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1494)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
04-07 18:47:59.494 5581-5581/com.example.sander.app E/AndroidRuntime: at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1494)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at com.android.internal.policy.DecorView.onLayout(DecorView.java:726)
at android.view.View.layout(View.java:17637)
at android.view.ViewGroup.layout(ViewGroup.java:5575)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2346)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2068)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1254)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6337)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:874)
at android.view.Choreographer.doCallbacks(Choreographer.java:686)
at android.view.Choreographer.doFrame(Choreographer.java:621)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:860)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6119)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)

It's crashing because you are setting an integer on mTextView2's setTextView method which accept Charsequence
You code should be something like holder.mTextView2.setText(String.valueOf(ArrayDataset2.get(position)));

Try this
#Override
public void onBindViewHolder(MyViewHolder holder, int position){
holder.mTextView.setText(String.valueOf(ArrayDataset.get(position)));
holder.mTextView2.setText(String.valueOf(ArrayDataset2.get(position)));
holder.mImageView.setImageResource(R.drawable.ic_local_parking_black_24dp);
}

Error Inflating New Fragment

Summary: MainActivityFragment passes passes an intent to DetailedActivity when an item is clicked to display detailed data. Since I want to display these within a Two-Pane interface, I needed to make the DetailedActivity a fragment.
Problem : Whenever clicking on the item in MainActivityFragment to launch the intent for DetailedActivityFragment, I get an error saying its unable to start or inflate the activity. The detailedActivity for sake here is named "test" and "testFragment". It appears as though it points to line 25 of the activity_test.xml which is the line of include layout="#...".
I have left the fragment_test.xml out due to its length but i will provide a github link to anyone whom may want to see it or the manifest.
Im currently a novice to the android world so any help is appriciated =)! This branch of my project is a huge mess right now experimenting with things right now so pardon the mess...
Github Link:https://github.com/Rykuno/Flix-Viewer/tree/tablet/app/src/main/java/com/rykuno/movietestapp/Activities
FATAL EXCEPTION: main
Process: com.rykuno.movietestapp, PID: 14281
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.rykuno.movietestapp/com.rykuno.movietestapp.Activities.test}: android.view.InflateException: Binary XML file line #25: Binary XML file line #1: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: android.view.InflateException: Binary XML file line #25: Binary XML file line #1: Error inflating class fragment
at android.view.LayoutInflater.inflate(LayoutInflater.java:539)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:393)
at android.app.Activity.setContentView(Activity.java:2172)
at com.rykuno.movietestapp.Activities.test.onCreate(test.java:14)
at android.app.Activity.performCreate(Activity.java:6251)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
at android.app.ActivityThread.-wrap11(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:148) 
at android.app.ActivityThread.main(ActivityThread.java:5417) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
Caused by: android.view.InflateException: Binary XML file line #1: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:782)
at android.view.LayoutInflater.parseInclude(LayoutInflater.java:941)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:831)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798)
at android.view.LayoutInflater.inflate(LayoutInflater.java:515)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:374) 
at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:393) 
at android.app.Activity.setContentView(Activity.java:2172) 
at com.rykuno.movietestapp.Activities.test.onCreate(test.java:14) 
at android.app.Activity.performCreate(Activity.java:6251) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
at android.app.ActivityThread.-wrap11(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:148) 
at android.app.ActivityThread.main(ActivityThread.java:5417) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
Caused by: java.lang.IllegalArgumentException: Target must not be null.
at com.squareup.picasso.RequestCreator.into(RequestCreator.java:618)
at com.squareup.picasso.RequestCreator.into(RequestCreator.java:601)
at com.rykuno.movietestapp.Activities.testFragment.setViewData(testFragment.java:100)
at com.rykuno.movietestapp.Activities.testFragment.onCreateView(testFragment.java:87)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:1974)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1036)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1230)
at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1332)
at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2288)
at android.support.v4.app.FragmentController.onCreateView(FragmentController.java:120)
at android.support.v4.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:357)
at android.support.v4.app.BaseFragmentActivityHoneycomb.onCreateView(BaseFragmentActivityHoneycomb.java:31)
at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:80)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:754)
at android.view.LayoutInflater.parseInclude(LayoutInflater.java:941) 
at android.view.LayoutInflater.rInflate(LayoutInflater.java:831) 
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:515) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:423) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:374) 
at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:393) 
at android.app.Activity.setContentView(Activity.java:2172) 
at com.rykuno.movietestapp.Activities.test.onCreate(test.java:14) 
at android.app.Activity.performCreate(Activity.java:6251) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
at android.app.ActivityThread.-wrap11(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:148) 
at android.app.ActivityThread.main(ActivityThread.java:5417) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
Here is the code to the Activity Files vvv
package com.rykuno.movietestapp.Activities;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import com.rykuno.movietestapp.R;
public class test extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
}
}
And the fragment
package com.rykuno.movietestapp.Activities;
import android.content.Intent;
import android.net.Uri;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;
import com.rykuno.movietestapp.Adapter.TrailerAdapter;
import com.rykuno.movietestapp.BuildConfig;
import com.rykuno.movietestapp.Data.DatabaseHelper;
import com.rykuno.movietestapp.R;
import com.squareup.picasso.Picasso;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import butterknife.Bind;
import butterknife.ButterKnife;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
/**
* A placeholder fragment containing a simple view.
*/
public class testFragment extends Fragment {
private static final String MOVIEKEYS = "videoKeys";
private String movieVideoUrl;
private List<String> movieKeys = new ArrayList<>();
private String mPoster;
private String mOriginalTitle;
private String mPlot;
private String mReleaseDate;
private String mBackDrop;
private String mRating;
private boolean mFavorited = false;
private int mId;
private DatabaseHelper db;
private TrailerAdapter mTrailerAdapter;
#Bind(R.id.title_textView)
TextView mTitleTextView;
#Bind(R.id.rating_textView)
TextView mRatingTextView;
#Bind(R.id.plot_textView)
TextView mPlotTextView;
#Bind(R.id.backdrop_image)
ImageView mBackdropImageView;
#Bind(R.id.poster_imageView)
ImageView mPosterImageView;
#Bind(R.id.released_textView)
TextView mReleaseDateTextView;
#Bind(R.id.comments_button)
Button mCommentsButton;
#Bind(R.id.favorite_imageView)
ImageView mFavoritesImageView;
#Bind(R.id.trailer_gridview)
GridView mGridView;
public testFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_test, container, false);
db = new DatabaseHelper(getActivity());
ButterKnife.bind(getActivity());
extractExtras();
setViewData();
getMovieYoutubeHandle();
setClickItems();
return rootView;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
private void setViewData() {
Picasso.with(getActivity()).load("http://image.tmdb.org/t/p/w780/" + mBackDrop).into(mBackdropImageView);
Picasso.with(getActivity()).load("http://image.tmdb.org/t/p/w342/" + mPoster).into(mPosterImageView);
mTitleTextView.setText(mOriginalTitle);
mRatingTextView.setText(mRating + "/10");
mPlotTextView.setText(mPlot);
mReleaseDateTextView.setText(mReleaseDate);
}
private void extractExtras() {
mPoster = getActivity().getIntent().getStringExtra("poster");
mOriginalTitle = getActivity().getIntent().getStringExtra("title");
mPlot = getActivity().getIntent().getStringExtra("plot");
mReleaseDate = getActivity().getIntent().getStringExtra("releaseDate");
mBackDrop = getActivity().getIntent().getStringExtra("backdrop");
mRating = getActivity().getIntent().getStringExtra("rating");
mId = getActivity().getIntent().getIntExtra("id", 0);
mFavorited = getActivity().getIntent().getBooleanExtra("favorited", false);
}
private void getMovieYoutubeHandle(){
movieVideoUrl = "http://api.themoviedb.org/3/movie/"+mId+"/videos?api_key="+ BuildConfig.MY_MOVIE_DB_API_KEY;
OkHttpClient client = new OkHttpClient();
Request request = new Request.Builder().url(movieVideoUrl).build();
Call call = client.newCall(request);
call.enqueue(new Callback() {
#Override
public void onFailure(Call call, IOException e) {
}
#Override
public void onResponse(Call call, Response response) throws IOException {
String jsonData = response.body().string();
try {
movieKeys = Arrays.asList(getTrailerData(jsonData));
getActivity().runOnUiThread(new Runnable() {
#Override
public void run() {
mTrailerAdapter.setListData(movieKeys);
}
});
} catch (JSONException e) {
e.printStackTrace();
}
}
});
}
private String[] getTrailerData(String jsonData) throws JSONException {
JSONObject trailerDetails = new JSONObject(jsonData);
JSONArray results = trailerDetails.getJSONArray("results");
String[] keyArray = new String[results.length()];
for(int i = 0; i<results.length(); i++){
JSONObject keyResults = results.getJSONObject(i);
String youtubeKey = keyResults.getString("key");
keyArray[i] = youtubeKey;
}
return keyArray;
}
private void setClickItems() {
//initializes gridview for trailers and onItemClicks
mTrailerAdapter = new TrailerAdapter(getActivity(), R.layout.trailer_item, movieKeys);
mGridView.setAdapter(mTrailerAdapter);
mGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String keyPosition = movieKeys.get(position).toString();
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.youtube.com/watch?v=" + keyPosition)));
}
});
//onClick launches the CommentsActivity
mCommentsButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(getActivity(), CommentsActivity.class);
intent.putExtra("id", mId);
startActivity(intent);
}
});
//onClick for favorites
mFavoritesImageView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
db = new DatabaseHelper(getActivity());
boolean isInserted = db.insertData(getActivity(), mId, mOriginalTitle, mPlot, mBackDrop, mPoster, mRating, mReleaseDate);
if (isInserted = true) {
mFavoritesImageView.setImageResource(android.R.drawable.star_big_on);
Log.v(DetailedMovie.class.getSimpleName(), "entry worked");
} else if (isInserted = false) {
Log.v(DetailedMovie.class.getSimpleName(), "entry failed");
}
}
});
}
#Override
public void onSaveInstanceState(Bundle outState) {
ArrayList<String> toSave = movieKeys instanceof ArrayList ?
(ArrayList<String>) movieKeys : new ArrayList<>(movieKeys);
outState.putStringArrayList(MOVIEKEYS, toSave);
super.onSaveInstanceState(outState);
}
}
As well as the layout files.
activity_test.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.rykuno.movietestapp.Activities.test">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay"/>
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_test"/>
</android.support.design.widget.CoordinatorLayout>
content_test.xml
<fragment android:id="#+id/fragment1"
android:name="com.rykuno.movietestapp.Activities.testFragment"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:layout="#layout/fragment_test"/>

make sure to use:
import android.support.v4.app.Fragment;
And also make sure that the Activity that is using the fragment(s) extends FragmentActivity instead of the regular Activity,
import android.support.v4.app.FragmentActivity;
to get the FragmentActivity class.

One think I found is add app:layout_behaviour to include tag and not inside content_test.xml
<include layout="#layout/content_test"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
/>
And your project got many NPE unable to test more.