Android 读取Firebase数据并填充recyclerview
我正在尝试从Firebase读取数据，并将其显示在具有卡片布局的recyclerview中。我有一个单独的活动用于写入Firebase，还有一个片段用于在应用程序中实际显示数据 该应用构建良好并运行，但当我试图查看包含recyclerView的片段时崩溃 1） 片段显示回收视图Android 读取Firebase数据并填充recyclerview,android,firebase,firebase-realtime-database,Android,Firebase,Firebase Realtime Database,我正在尝试从Firebase读取数据，并将其显示在具有卡片布局的recyclerview中。我有一个单独的活动用于写入Firebase，还有一个片段用于在应用程序中实际显示数据 该应用构建良好并运行，但当我试图查看包含recyclerView的片段时崩溃 1） 片段显示回收视图 package com.nikelspot.alpha; import android.support.annotation.NonNull; import android.support.v4.app.Fragmen
package com.nikelspot.alpha;
import android.support.annotation.NonNull;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;
import java.util.ArrayList;
import java.util.List;
import static android.content.ContentValues.TAG;
public class FragExplore extends Fragment {
public FragExplore() {
//required empty default constructor
}
public DatabaseReference comBaseRef;
public FirebaseAuth mAuth;
public List<ComicBase> list = new ArrayList<>();
public RecyclerView recView;
private RecyclerView.Adapter adapter;
@Override
public View onCreateView(@NonNull LayoutInflater inflater,
ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.frag_explore,
container, false);
recView = rootView.findViewById(R.id.rec_view_buy);
recView.setLayoutManager(new LinearLayoutManager(getActivity()));
mAuth = FirebaseAuth.getInstance();
comBaseRef = FirebaseDatabase.getInstance().getReference();
comBaseRef.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
ComicBase comicBase = dataSnapshot.getValue(ComicBase.class);
list.add(comicBase);
adapter = new RecViewAdapter(getActivity(), list);
recView.setAdapter(adapter);
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
return rootView;
}
}
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/cardview1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
card_view:cardElevation="5dp"
card_view:contentPadding="5dp"
card_view:cardCornerRadius="5dp"
card_view:cardMaxElevation="5dp">
<android.support.constraint.ConstraintLayout
android:id="@+id/constraintLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#ECEFF1"
android:padding="10dp">
<TextView
android:id="@+id/com_title_show"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:gravity="center"
android:textColor="#000"
android:textSize="20sp"
card_view:layout_constraintBottom_toBottomOf="parent"
card_view:layout_constraintEnd_toStartOf="@+id/com_issue_show"
card_view:layout_constraintHorizontal_bias="0.5"
card_view:layout_constraintStart_toStartOf="parent"
card_view:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/com_issue_show"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:textColor="#000"
android:textSize="20sp"
card_view:layout_constraintBottom_toBottomOf="parent"
card_view:layout_constraintEnd_toStartOf="@+id/com_price_show"
card_view:layout_constraintHorizontal_bias="0.5"
card_view:layout_constraintStart_toEndOf="@+id/com_title_show"
card_view:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/com_grade_show"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:gravity="center"
android:textColor="#000"
android:textSize="20sp"
card_view:layout_constraintBottom_toBottomOf="parent"
card_view:layout_constraintEnd_toEndOf="parent"
card_view:layout_constraintStart_toEndOf="@+id/com_price_show"
card_view:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/com_price_show"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:gravity="center"
android:textColor="#000"
android:textSize="20sp"
card_view:layout_constraintBottom_toBottomOf="parent"
card_view:layout_constraintEnd_toStartOf="@+id/com_grade_show"
card_view:layout_constraintHorizontal_bias="0.5"
card_view:layout_constraintStart_toEndOf="@+id/com_issue_show"
card_view:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
</android.support.v7.widget.CardView>
DatabaseReference rootRef, pendingMeetingsRef;
ListView pendingMeetingslist;
List<Meeting> meetings = new ArrayList<>();
MeetingsAdapter meetingsAdapter;
@Override
protected void onCreate( Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_pending_meetings);
pendingMeetingslist = findViewById(R.id.list);
rootRef = FirebaseDatabase.getInstance().getReference();
pendingMeetingsRef = rootRef.child("approved_meetings");
loadListFromFirebase();
}
private void loadListFromFirebase() {
pendingMeetingsRef.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
for (DataSnapshot postSnapshot : dataSnapshot.getChildren()) {
meetings.add(postSnapshot.getValue(Meeting.class));
meetingsAdapter = new MeetingsAdapter(ApprovedMeetingsActivity.this, meetings, "startmeet");
pendingMeetingslist.setAdapter(meetingsAdapter);
}
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
}
private List<Meeting> listData;
private LayoutInflater layoutInflater;
Context context;
String text;
List<String> ids = new ArrayList<>();
DatabaseReference rootRef, pendingMeetingsRef, canceledMeetingsRef;
SendMsgViewModel sendMsgViewModel;
CompositeSubscription subscription = new CompositeSubscription();
Float lat , lng ;
Location currentLocation;
private SimpleLocation location;
public MeetingsAdapter(Context context, List<Meeting> listData, String text) {
this.listData = listData;
layoutInflater = LayoutInflater.from(context);
this.context = context;
this.text = text;
}
@Override
public int getCount() {
return listData.size();
}
@Override
public Object getItem(int position) {
return listData.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = layoutInflater.inflate(R.layout.item_meeting_list, null);
holder = new ViewHolder();
holder.meeting = convertView.findViewById(R.id.training_txt);
holder.trainer = convertView.findViewById(R.id.trainer_txt);
holder.location = convertView.findViewById(R.id.location_txt);
holder.cancelMeetBtn = convertView.findViewById(R.id.cancel_meet_btn);
holder.startMeetBtn = convertView.findViewById(R.id.start_meet_btn);
if(text.equals("hidebtn")){
holder.cancelMeetBtn.setVisibility(View.GONE);
holder.startMeetBtn.setVisibility(View.GONE);
}
else if(text.equals("startmeet")){
holder.cancelMeetBtn.setVisibility(View.GONE);
holder.startMeetBtn.setVisibility(View.VISIBLE);
}
else {
holder.cancelMeetBtn.setVisibility(View.VISIBLE);
holder.startMeetBtn.setVisibility(View.GONE);
}
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
sendMsgViewModel = new SendMsgViewModel(new SendMsgInteractorImpl(), AndroidSchedulers.mainThread());
location = new SimpleLocation(context);
final PermissionListener permissionlistener = new PermissionListener() {
@Override
public void onPermissionGranted() {
Toast.makeText(context, "Permission Granted", Toast.LENGTH_SHORT).show();
NotifyData notifydata = new NotifyData(String.valueOf(location.getLatitude()),
String.valueOf(location.getLongitude()));
subscription.add(sendMsgViewModel.sendMsg("key=AIzaSyCJT3Osi3pHf3K6nr_LRs1Xx0m0M5fID04",
new Message("cDjrAZSBTP4:APA91bG1hbHafiCuLRW_yy1OLbySkTXd0BPIvT5jA9xzZn4dW-4Cy0WRoqGKM9E6GSMumCd63Uu6xiksPYB1EmcOjn6v_jlZWsZ41I2z6laQtYlu7j57vimQVYOVXBNe1d8eBIqIZAfi",
notifydata,""))
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Observer<Message>() {
@Override
public void onCompleted() {
}
@Override
public void onError(Throwable e) {
}
@Override
public void onNext(Message message) {
}
}));
}
@Override
public void onPermissionDenied(ArrayList<String> deniedPermissions) {
Toast.makeText(context, "Permission Denied\n" + deniedPermissions.toString(), Toast.LENGTH_SHORT).show();
}
};
rootRef = FirebaseDatabase.getInstance().getReference();
pendingMeetingsRef = rootRef.child("requested_meetings");
canceledMeetingsRef = rootRef.child("canceled_meetings");
for(int i=0; i < listData.size(); i++) {
ids.add(listData.get(position).getId());
}
holder.meeting.setText(listData.get(position).getTraining());
holder.trainer.setText(listData.get(position).getTrainer());
holder.location.setText(listData.get(position).getLocation());
holder.cancelMeetBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
new MaterialDialog.Builder(context)
.title("Cancel Meeting")
.backgroundColor(context.getResources().getColor(R.color.white))
.titleColor(context.getResources().getColor(R.color.black))
.contentColor(context.getResources().getColor(R.color.textColor))
.content("Are you sure you want to cancel this Meeting ?")
.positiveText("Yes")
.negativeText("No")
.onNegative(new MaterialDialog.SingleButtonCallback() {
@Override
public void onClick(@NonNull MaterialDialog dialog, @NonNull DialogAction which) {
dialog.dismiss();
}
})
.onPositive(new MaterialDialog.SingleButtonCallback() {
@Override
public void onClick(@NonNull MaterialDialog dialog, @NonNull DialogAction which) {
dialog.dismiss();
Meeting meet = new Meeting();
String id = canceledMeetingsRef.push().getKey();
meet.setId(id);
meet.setUser(listData.get(position).getUser());
meet.setTraining(listData.get(position).getTraining());
meet.setTrainer(listData.get(position).getTrainer());
meet.setLocation(listData.get(position).getLocation());
canceledMeetingsRef.child(id).setValue(meet);
listData.remove(position);
pendingMeetingsRef.child(ids.get(position)).removeValue();
ids.remove(position);
notifyDataSetChanged();
Toast.makeText(context,"Meeting successfully cancelled", Toast.LENGTH_SHORT).show();
}
})
.show();
}
});
holder.startMeetBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (!location.hasLocationEnabled()) {
// ask the user to enable location access
SimpleLocation.openSettings(context);
return;
}
new MaterialDialog.Builder(context)
.title("Start Meeting")
.backgroundColor(context.getResources().getColor(R.color.white))
.titleColor(context.getResources().getColor(R.color.black))
.contentColor(context.getResources().getColor(R.color.textColor))
.content("Are you sure you want to start this Meeting ?")
.positiveText("Yes")
.negativeText("No")
.onNegative(new MaterialDialog.SingleButtonCallback() {
@Override
public void onClick(@NonNull MaterialDialog dialog, @NonNull DialogAction which) {
dialog.dismiss();
}
})
.onPositive(new MaterialDialog.SingleButtonCallback() {
@Override
public void onClick(@NonNull MaterialDialog dialog, @NonNull DialogAction which) {
dialog.dismiss();
location.beginUpdates();
TedPermission.with(context)
.setPermissionListener(permissionlistener)
.setDeniedMessage("If you reject permission,you can not use this service\n\nPlease turn on permissions at [Setting] > [Permission]")
.setPermissions(Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION)
.check();
}
})
.show();
}
});
return convertView;
}
static class ViewHolder {
TextView meeting, trainer, location;
ImageView cancelMeetBtn;
LinearLayout startMeetBtn;
}
void updateLocation(Location location) {
currentLocation = location;
lat = (float) currentLocation.getLatitude();
lng = (float) currentLocation.getLongitude();
}
私有列表列表数据；
私人停车场停车场停车场停车场停车场停车场停车场停车场停车场停车场停车场停车场停车场停车场停车场停车场停车场停车场停车场；
语境；
字符串文本；
列表ID=新的ArrayList（）；
数据库引用rootRef、pendingMeetingsRef、canceledMeetingsRef；
SendMsgViewModel SendMsgViewModel；
CompositeSubscription subscription=新CompositeSubscription（）；
浮式液化天然气；
位置当前位置；
私人单纯形定位；
公共会议适配器（上下文上下文、列表数据、字符串文本）{
this.listData=listData；
layoutInflater=layoutInflater.from（上下文）；
this.context=上下文；
this.text=文本；
}
@凌驾
public int getCount（）{
返回listData.size（）；
}
@凌驾
公共对象getItem（int位置）{
返回listData.get（位置）；
}
@凌驾
公共长getItemId（int位置）{
返回位置；
}
@凌驾
公共视图getView（最终整数位置、视图转换视图、视图组父视图）{
视窗座；
if（convertView==null）{
convertView=LayoutFlater.充气（R.layout.item\u会议列表，空）；
holder=新的ViewHolder（）；
holder.meeting=convertView.findViewById（R.id.training_txt）；
holder.trainer=convertView.findViewById（R.id.trainer\u txt）；
holder.location=convertView.findViewById（R.id.location_txt）；
holder.cancelmeetbttn=convertView.findViewById（R.id.cancel\u meet\u btn）；
holder.startMeetBtn=convertView.findViewById（R.id.start\u meet\u btn）；
if（text.equals（“hidebtn”））{
holder.CancelMeetbttn.setVisibility（视图已消失）；
holder.startMeetBtn.setVisibility（视图已消失）；
}
else if（text.equals（“startmeet”））{
holder.CancelMeetbttn.setVisibility（视图已消失）；
holder.startMeetBtn.setVisibility（视图可见）；
}
否则{
holder.CancelMeetbttn.setVisibility（视图可见）；
holder.startMeetBtn.setVisibility（视图已消失）；
}
convertView.setTag（支架）；
}否则{
holder=（ViewHolder）convertView.getTag（）；
}
sendMsgViewModel=newsendmsgviewmodel（newsendmsginteractorimpl（），AndroidSchedulers.mainThread（））；
位置=新的SimpleLocation（上下文）；
最终PermissionListener PermissionListener=新PermissionListener（）{
@凌驾
已授予许可的公共无效（）{
Toast.makeText（上下文，“已授予权限”，Toast.LENGTH_SHORT）.show（）；
NotifyData NotifyData=新NotifyData（String.valueOf（location.getLatitude（）），
valueOf（location.getLongitude（））；
subscription.add（sendMsgViewModel.sendMsg（“key=aizasycjt3osi3pf3k6nr_lrs13xx0m5fid04”），
新消息（“cDjrAZSBTP4:APA91BG1HBHAFILLRW_YY1OLBYSKTXD0BPIVT5JA9XZN4DW-4CY0WROQGKM9E6GSMUMCD63UUUU6XIKSPYB1EMCOJN6V_JLZWSZ41I2Z6LAQYOLBN7J57VIMQVYOVXBNE1D8EBIQIZAFI”，
notifydata（“”）
.subscribeOn（Schedulers.io（））
.observeOn（AndroidSchedulers.mainThread（））
.订阅（新观察员）{
@凌驾
未完成的公共无效（）{
}
@凌驾
公共无效申报人（可丢弃的e）{
}
@凌驾
公共void onNext（消息消息）{
}
}));
}
@凌驾
public void onPermissionDenied（ArrayList deniedPermissions）{
Toast.makeText（上下文，“权限被拒绝\n”+deniedPermissions.toString（），Toast.LENGTH\u SHORT.show（）；
}
};
rootRef=FirebaseDatabase.getInstance（）.getReference（）；
pendingMeetingsRef=rootRef.child（“请求的会议”）；
canceledMeetingsRef=rootRef.child（“取消的会议”）；
对于（int i=0；i06-18 19:40:41.811 16590-16590/com.nikelspot.alpha E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.nikelspot.alpha, PID: 16590
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setText(java.lang.CharSequence)' on a null object reference
at com.nikelspot.alpha.RecViewAdapter.onBindViewHolder(RecViewAdapter.java:38)
at com.nikelspot.alpha.RecViewAdapter.onBindViewHolder(RecViewAdapter.java:13)
at android.support.v7.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:6673)
at android.support.v7.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:6714)
at android.support.v7.widget.RecyclerView$Recycler.tryBindViewHolderByDeadline(RecyclerView.java:5647)
at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5913)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5752)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5748)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2232)
at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1559)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1519)
at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:614)
at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3812)
at android.support.v7.widget.RecyclerView.onMeasure(RecyclerView.java:3225)
at android.view.View.measure(View.java:22024)
at android.support.constraint.ConstraintLayout.internalMeasureChildren(ConstraintLayout.java:1212)
at android.support.constraint.ConstraintLayout.onMeasure(ConstraintLayout.java:1552)
at android.view.View.measure(View.java:22024)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6584)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.view.View.measure(View.java:22024)
at android.support.constraint.ConstraintLayout.internalMeasureChildren(ConstraintLayout.java:1212)
at android.support.constraint.ConstraintLayout.onMeasure(ConstraintLayout.java:1552)
at android.view.View.measure(View.java:22024)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6584)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:141)
at android.view.View.measure(View.java:22024)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6584)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1514)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:806)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:685)
at android.view.View.measure(View.java:22024)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6584)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.view.View.measure(View.java:22024)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6584)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1514)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:806)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:685)
at android.view.View.measure(View.java:22024)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6584)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at com.android.internal.policy.DecorView.onMeasure(DecorView.java:746)
at android.view.View.measure(View.java:22024)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2434)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1522)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1775)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1410)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6816)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911)
06-18 19:40:41.812 16590-16590/com.nikelspot.alpha E/AndroidRuntime: at android.view.Choreographer.doCallbacks(Choreographer.java:723)
at android.view.Choreographer.doFrame(Choreographer.java:658)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)
at android.os.Handler.handleCallback(Handler.java:789)
at android.os.Handler.dispatchMessage(Handler.java:98)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6665)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:772)
DatabaseReference rootRef, pendingMeetingsRef;
ListView pendingMeetingslist;
List<Meeting> meetings = new ArrayList<>();
MeetingsAdapter meetingsAdapter;
@Override
protected void onCreate( Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_pending_meetings);
pendingMeetingslist = findViewById(R.id.list);
rootRef = FirebaseDatabase.getInstance().getReference();
pendingMeetingsRef = rootRef.child("approved_meetings");
loadListFromFirebase();
}
private void loadListFromFirebase() {
pendingMeetingsRef.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
for (DataSnapshot postSnapshot : dataSnapshot.getChildren()) {
meetings.add(postSnapshot.getValue(Meeting.class));
meetingsAdapter = new MeetingsAdapter(ApprovedMeetingsActivity.this, meetings, "startmeet");
pendingMeetingslist.setAdapter(meetingsAdapter);
}
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
}
String id;
String user;
String training;
String trainer;
String location;
String trainee;
public Meeting() {
//Empty Constructor For Firebase
}
public void setallmeetings(String id, String user, String training, String trainer, String location)
{
this.id = id;
this.user = user; //Parameterized for Program-Inhouse objects.
this.training = training;
this.trainer = trainer;
this.location = location;
}
//Getters and Setters
public String getId()
{
return id;
}
public void setId(String id)
{
this.id = id;
}
public String getUser()
{
return user;
}
public void setUser(String user)
{
this.user = user;
}
public String getTraining()
{
return training;
}
public void setTraining(String training)
{
this.training = training;
}
public String getTrainer()
{
return trainer;
}
public void setTrainer(String trainer)
{
this.trainer = trainer;
}
public String getLocation()
{
return location;
}
public void setLocation(String location)
{
this.location = location;
}
public String getTrainee()
{
return trainee;
}
public void setTrainee(String trainee)
{
this.trainee = trainee;
}
private List<Meeting> listData;
private LayoutInflater layoutInflater;
Context context;
String text;
List<String> ids = new ArrayList<>();
DatabaseReference rootRef, pendingMeetingsRef, canceledMeetingsRef;
SendMsgViewModel sendMsgViewModel;
CompositeSubscription subscription = new CompositeSubscription();
Float lat , lng ;
Location currentLocation;
private SimpleLocation location;
public MeetingsAdapter(Context context, List<Meeting> listData, String text) {
this.listData = listData;
layoutInflater = LayoutInflater.from(context);
this.context = context;
this.text = text;
}
@Override
public int getCount() {
return listData.size();
}
@Override
public Object getItem(int position) {
return listData.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = layoutInflater.inflate(R.layout.item_meeting_list, null);
holder = new ViewHolder();
holder.meeting = convertView.findViewById(R.id.training_txt);
holder.trainer = convertView.findViewById(R.id.trainer_txt);
holder.location = convertView.findViewById(R.id.location_txt);
holder.cancelMeetBtn = convertView.findViewById(R.id.cancel_meet_btn);
holder.startMeetBtn = convertView.findViewById(R.id.start_meet_btn);
if(text.equals("hidebtn")){
holder.cancelMeetBtn.setVisibility(View.GONE);
holder.startMeetBtn.setVisibility(View.GONE);
}
else if(text.equals("startmeet")){
holder.cancelMeetBtn.setVisibility(View.GONE);
holder.startMeetBtn.setVisibility(View.VISIBLE);
}
else {
holder.cancelMeetBtn.setVisibility(View.VISIBLE);
holder.startMeetBtn.setVisibility(View.GONE);
}
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
sendMsgViewModel = new SendMsgViewModel(new SendMsgInteractorImpl(), AndroidSchedulers.mainThread());
location = new SimpleLocation(context);
final PermissionListener permissionlistener = new PermissionListener() {
@Override
public void onPermissionGranted() {
Toast.makeText(context, "Permission Granted", Toast.LENGTH_SHORT).show();
NotifyData notifydata = new NotifyData(String.valueOf(location.getLatitude()),
String.valueOf(location.getLongitude()));
subscription.add(sendMsgViewModel.sendMsg("key=AIzaSyCJT3Osi3pHf3K6nr_LRs1Xx0m0M5fID04",
new Message("cDjrAZSBTP4:APA91bG1hbHafiCuLRW_yy1OLbySkTXd0BPIvT5jA9xzZn4dW-4Cy0WRoqGKM9E6GSMumCd63Uu6xiksPYB1EmcOjn6v_jlZWsZ41I2z6laQtYlu7j57vimQVYOVXBNe1d8eBIqIZAfi",
notifydata,""))
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Observer<Message>() {
@Override
public void onCompleted() {
}
@Override
public void onError(Throwable e) {
}
@Override
public void onNext(Message message) {
}
}));
}
@Override
public void onPermissionDenied(ArrayList<String> deniedPermissions) {
Toast.makeText(context, "Permission Denied\n" + deniedPermissions.toString(), Toast.LENGTH_SHORT).show();
}
};
rootRef = FirebaseDatabase.getInstance().getReference();
pendingMeetingsRef = rootRef.child("requested_meetings");
canceledMeetingsRef = rootRef.child("canceled_meetings");
for(int i=0; i < listData.size(); i++) {
ids.add(listData.get(position).getId());
}
holder.meeting.setText(listData.get(position).getTraining());
holder.trainer.setText(listData.get(position).getTrainer());
holder.location.setText(listData.get(position).getLocation());
holder.cancelMeetBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
new MaterialDialog.Builder(context)
.title("Cancel Meeting")
.backgroundColor(context.getResources().getColor(R.color.white))
.titleColor(context.getResources().getColor(R.color.black))
.contentColor(context.getResources().getColor(R.color.textColor))
.content("Are you sure you want to cancel this Meeting ?")
.positiveText("Yes")
.negativeText("No")
.onNegative(new MaterialDialog.SingleButtonCallback() {
@Override
public void onClick(@NonNull MaterialDialog dialog, @NonNull DialogAction which) {
dialog.dismiss();
}
})
.onPositive(new MaterialDialog.SingleButtonCallback() {
@Override
public void onClick(@NonNull MaterialDialog dialog, @NonNull DialogAction which) {
dialog.dismiss();
Meeting meet = new Meeting();
String id = canceledMeetingsRef.push().getKey();
meet.setId(id);
meet.setUser(listData.get(position).getUser());
meet.setTraining(listData.get(position).getTraining());
meet.setTrainer(listData.get(position).getTrainer());
meet.setLocation(listData.get(position).getLocation());
canceledMeetingsRef.child(id).setValue(meet);
listData.remove(position);
pendingMeetingsRef.child(ids.get(position)).removeValue();
ids.remove(position);
notifyDataSetChanged();
Toast.makeText(context,"Meeting successfully cancelled", Toast.LENGTH_SHORT).show();
}
})
.show();
}
});
holder.startMeetBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (!location.hasLocationEnabled()) {
// ask the user to enable location access
SimpleLocation.openSettings(context);
return;
}
new MaterialDialog.Builder(context)
.title("Start Meeting")
.backgroundColor(context.getResources().getColor(R.color.white))
.titleColor(context.getResources().getColor(R.color.black))
.contentColor(context.getResources().getColor(R.color.textColor))
.content("Are you sure you want to start this Meeting ?")
.positiveText("Yes")
.negativeText("No")
.onNegative(new MaterialDialog.SingleButtonCallback() {
@Override
public void onClick(@NonNull MaterialDialog dialog, @NonNull DialogAction which) {
dialog.dismiss();
}
})
.onPositive(new MaterialDialog.SingleButtonCallback() {
@Override
public void onClick(@NonNull MaterialDialog dialog, @NonNull DialogAction which) {
dialog.dismiss();
location.beginUpdates();
TedPermission.with(context)
.setPermissionListener(permissionlistener)
.setDeniedMessage("If you reject permission,you can not use this service\n\nPlease turn on permissions at [Setting] > [Permission]")
.setPermissions(Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION)
.check();
}
})
.show();
}
});
return convertView;
}
static class ViewHolder {
TextView meeting, trainer, location;
ImageView cancelMeetBtn;
LinearLayout startMeetBtn;
}
void updateLocation(Location location) {
currentLocation = location;
lat = (float) currentLocation.getLatitude();
lng = (float) currentLocation.getLongitude();
}