Je travaille sur une application simple où j'ai besoin de voir tous les documents dans un dossier spécifique. FirebaseFirestore dans mon application.
Pour que cela fonctionne, je pensais que la meilleure solution serait d'utiliser une ListView avec un ArrayAdapter . Et faire en sorte que le document Firestore soit transmis à une classe Java personnalisée que j'ai créée.
Mon document est configuré pour avoir :
(String) titre :
(Date) due_date :
(Nombre) exp :
(String) description :
Cependant, quelque chose dans ma logique semble ne pas fonctionner. Voici mon code pour ce processus :
Missions.java :
public class Missions {
private String title;
private Number exp;
private String date;
private String description;
public Missions() {}
public Missions(String title, Number exp, String date, String description) {
this.title = title;
this.exp = exp;
this.date = date;
this.description = description;
}
public String getTitle(){
return title;
}
public Number getExp(){
return exp;
}
public String getDate(){
return date;
}
public String getDescription(){
return description;
}
}MainActivity.java :
public class MainActivity extends AppCompatActivity {
private final String COLLECTION_KEY = "missions";
//Views
private TextView mHeaderView;
private ListView mMissionListView;
//Firebase
private FirebaseFirestore db;
//Adapter
private MissionsAdapter mMissionAdapter;
private ArrayList<Missions> mMissionsList;
@Override
protected void onCreate(Bundle savedInstanceState){
/*
* My code here deals with authentication
*
*/
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mHeaderView = (TextView) findViewById(R.id.missionHeader);
mMissionsListView = (ListView) findViewById(R.id.missionList);
mHeaderView.setText("Available Missions"));
//get Database
db = FirebaseFirestore.getInstance();
//Set up the ArrayList
mMissionsList = new ArrayList<Missions>();
//set the Adapter
mMissionAdapter = new MissionsAdapter(this, mMissionsList);
mMissionListView.setAdapter(mMissionAdapter);
db.collection(COLLECTION_KEY).get().addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() {
@Override
public void onComplete(@NonNull Task<QuerySnapshot> task) {
if(task.isSuccessful()){
for(QueryDocumentSnapshot document : task.getResult()){
Log.d("MissionActivity", document.getId() + " => " + document.getData());
Missions miss = document.toObject(Missions.class);
mMissionsList.add(miss);
}
}
else {
Log.d("MissionActivity", "Error getting documents: ", task.getException());
}
}
});
//add the whole Arraylist of MIssions to the adapter
mMissionAdapter.addAll(mMissionsList);
}
}MissionsAdapter.java
import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import java.util.List;
public class MissionsAdapter extends ArrayAdapter<Missions> {
public MissionsAdapter(Context context, List<Missions> object){
super(context,0, object);
}
@Override
public View getView(int position, View convertView, ViewGroup parent){
if(convertView == null){
convertView = ((Activity)getContext()).getLayoutInflater().inflate(R.layout.item_mission,parent,false);
}
TextView titleTextView = (TextView) convertView.findViewById(R.id.mission_title);
TextView expTextView = (TextView) convertView.findViewById(R.id.mission_exp);
TextView dateTextView = (TextView) convertView.findViewById(R.id.mission_date);
TextView descriptionTextView = (TextView) convertView.findViewById(R.id.mission_description);
Missions mission = getItem(position);
titleTextView.setText(mission.getTitle());
expTextView.setText(mission.getExp().toString());
dateTextView.setText(mission.getDate());
descriptionTextView.setText(mission.getDescription());
return convertView;
}
}item_missions.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp">
<TextView
android:id="@+id/mission_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fontFamily="sans-serif-medium"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@color/input_login"
android:hint="There will be a title"/>
<TextView
android:id="@+id/mission_exp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fontFamily="sans-serif"
android:textAppearance="?android:textAppearance"
android:textColor="@color/input_login"
android:hint="There will be exp"/>
<TextView
android:id="@+id/mission_date"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fontFamily="sans-serif"
android:textAppearance="?android:textAppearance"
android:textColor="@color/input_login"
android:hint="There will be a date"/>
<TextView
android:id="@+id/mission_description"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fontFamily="sans-serif"
android:textAppearance="?android:textAppearance"
android:textColor="@color/input_login"
android:hint="There will be a description"/>
</LinearLayout>activité_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/missionHeader"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Edit/Create mission"
android:gravity="center"
android:textStyle="bold"
android:textColor="@android:color/black"
android:textAllCaps="true"
android:textSize="30dp"
android:paddingTop="20dp"
/>
<ListView
android:id="@+id/missionList"
android:layout_width="match_parent"
android:layout_height="match_parent">
</ListView>
</LinearLayout>Tout commentaire serait utile.
