なんか消えてたから戻しました
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09d0c2d259
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@ -5,12 +5,12 @@ import java.util.List;
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public class CreateUUID {
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public static int generateUUID(List<String> classIdList ){
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public static int generateUUID(List<Integer> classIdList ){
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while (true){
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String uuid = String.valueOf((int)(Math.random() * 1000000));
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int uuid = (int) (Math.random() * 100000);
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boolean isDuplicate = false;
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for(String classId : classIdList){
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if(classId.equals(uuid)){
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for(int classId : classIdList){
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if(classId==uuid){
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//重複があればフラグを立て、ループを抜ける
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isDuplicate = true;
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break;
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@ -19,9 +19,11 @@ public class CreateUUID {
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//重複がなければ生成したUUIDを返す
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if (!isDuplicate) {
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//firestoreに挿入処理
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InsertClassIdforFirebase insertClassIdforFirebase = new InsertClassIdforFirebase();
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insertClassIdforFirebase.insertClassId(uuid);
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//テスト用
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uuid="100";
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return Integer.parseInt(uuid);
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uuid=100;
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return uuid;
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}
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}
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}
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@ -17,14 +17,14 @@ import java.util.List;
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import java.util.Map;
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public class FirestoreReception_classIdDatabase {
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private FirebaseFirestore db;
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private List<String> classIdList= new ArrayList<>();
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private List<Integer> classIdList= new ArrayList<>();
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public FirestoreReception_classIdDatabase() {
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db = FirebaseFirestore.getInstance();
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}
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public List<String> getAllDocumentsFromClassIdDatabase() {
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public List<Integer> getAllDocumentsFromClassIdDatabase() {
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db.collection("classId_Database")
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.get()
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.addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() {
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@ -34,7 +34,7 @@ public class FirestoreReception_classIdDatabase {
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for (QueryDocumentSnapshot document : task.getResult()) {
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Log.d("結果", document.getId() + " => " + document.getData());
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//データをListに追加
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classIdList.add((String) document.get("classId"));
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classIdList.add(((Long) document.get("classId")).intValue());
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}
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} else {
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Log.d("結果", "Error getting documents: ", task.getException());
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@ -45,7 +45,7 @@ public class FirestoreReception_classIdDatabase {
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return classIdList;
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}
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public List<String> getClassIdList() {
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public List<Integer> getClassIdList() {
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return classIdList;
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}
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}
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@ -0,0 +1,19 @@
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package com.example.oplogy;
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import com.google.firebase.firestore.FirebaseFirestore;
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import java.util.HashMap;
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import java.util.Map;
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public class InsertClassIdforFirebase {
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public void insertClassId(int classId) {
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FirebaseFirestore db = FirebaseFirestore.getInstance();
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Map<String, Object> data = new HashMap<>();
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data.put("classId", classId); // classId is inserted as a number
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db.collection("classId_Database").add(data)
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.addOnSuccessListener(documentReference -> System.out.println("DocumentSnapshot added with ID: " + documentReference.getId()))
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.addOnFailureListener(e -> System.err.println("Error adding document: " + e));
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}
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}
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@ -162,7 +162,7 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
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//UUIDを表示するかのダイアログ
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private void showUUIDYesNoDialog() {
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firestoreReception_classIdDatabase = new FirestoreReception_classIdDatabase();
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List<String> classIdList = firestoreReception_classIdDatabase.getAllDocumentsFromClassIdDatabase();
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List<Integer> classIdList = firestoreReception_classIdDatabase.getAllDocumentsFromClassIdDatabase();
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AlertDialog.Builder builder = new AlertDialog.Builder(this);
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