Successfully displaying received data on Firebase. Successfully showi…

…ng recent data from Firebase. Parking screen shows new data after backing out and returning. Fixed bug where app would crash on swipe to refresh. Found new bug with showing time since last update. Data displayed in table not in order by time made.

app/build.gradle

@@ -5,7 +5,7 @@ android {
     buildToolsVersion "25.0.2"
     defaultConfig {
         applicationId "net.rofael.uabparkingfinder"
-        minSdkVersion 19
+        minSdkVersion 15
         targetSdkVersion 25
         versionCode 1
         versionName "1.0"

app/src/main/java/net/rofael/uabparkingfinder/MainMenu.java

@@ -38,10 +38,6 @@ protected void onCreate(Bundle savedInstanceState) {
         // See https://g.co/AppIndexing/AndroidStudio for more information.
         client = new GoogleApiClient.Builder(this).addApi(AppIndex.API).build();
 
-        mFireBaseAuth = FirebaseAuth.getInstance();
-        mFireBaseAuth.signInAnonymously();
-        mFireBaseUser = mFireBaseAuth.getCurrentUser();
-
         lots.add(testLot1);
         lots.add(testLot2);
         lots.add(testLot3);
@@ -107,9 +103,6 @@ public void onItemClick(AdapterView<?> parent, View view, int position, long id)
     private Parking testLot2 = new Parking("testLot2");
     private Parking testLot3 = new Parking("testLot3");
     private Parking testLot4 = new Parking("testLot4");
-    private FirebaseAuth mFireBaseAuth;
-    private FirebaseUser mFireBaseUser;
-
 
 
     /**

app/src/main/java/net/rofael/uabparkingfinder/ParkingActivity.java

@@ -1,13 +1,7 @@
 package net.rofael.uabparkingfinder;
 
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
 import java.util.ArrayList;
-import java.util.Collections;
+
 
 import android.content.Context;
 import android.content.SharedPreferences;
@@ -32,6 +26,7 @@
 import com.google.firebase.database.*;
 
 import java.lang.reflect.Array;
+import java.util.Map;
 
 public class ParkingActivity extends AppCompatActivity implements OnItemSelectedListener {
 
@@ -79,6 +74,31 @@ protected void onCreate(Bundle savedInstanceState) {
         String commitName;
 
         mDatabase = FirebaseDatabase.getInstance().getReference();
+        mDatabase.child(lot.toString()).limitToLast(10).addValueEventListener(new ValueEventListener() {
+            @Override
+            public void onDataChange(DataSnapshot dataSnapshot) {
+                for (DataSnapshot reportSnapshot: dataSnapshot.getChildren())
+                {
+                    long reportTime = (long) reportSnapshot.child("reportTime").getValue();
+                    long reportStatus = (long) reportSnapshot.child("status").getValue();
+                    int reportStat = Integer.parseInt(Long.toString(reportStatus));
+                    Report rep = new Report(lot,reportStat,reportTime);
+                    if (!reports.contains(rep))
+                    {
+                        reports.add(rep);
+                        reportData.add(reports.get(reports.size() - 1).readableLastReportTime());
+                        reportData.add(reports.get(reports.size() - 1).viewStatus());
+                        stringListAdapter.notifyDataSetChanged();
+                    }
+                }
+
+            }
+
+            @Override
+            public void onCancelled(DatabaseError databaseError) {
+
+            }
+        });
 
         Button confirmClick = (Button) findViewById(R.id.send_staus);
         confirmClick.setOnClickListener(new View.OnClickListener() {
@@ -90,6 +110,32 @@ public void onClick(View v)
                     reportData.set(i, reports.get((i/2)-1).readableLastReportTime());
                 }
                 adapter2.notifyDataSetChanged();
+
+                mDatabase.child(lot.toString()).limitToLast(10).addValueEventListener(new ValueEventListener() {
+                    @Override
+                    public void onDataChange(DataSnapshot dataSnapshot) {
+                        for (DataSnapshot reportSnapshot: dataSnapshot.getChildren())
+                        {
+                            long reportTime = (long) reportSnapshot.child("reportTime").getValue();
+                            long reportStatus = (long) reportSnapshot.child("status").getValue();
+                            int reportStat = Integer.parseInt(Long.toString(reportStatus));
+                            Report rep = new Report(lot,reportStat,reportTime);
+                            if (!reports.contains(rep))
+                            {
+                                reports.add(rep);
+                                reportData.add(reports.get(reports.size() - 1).readableLastReportTime());
+                                reportData.add(reports.get(reports.size() - 1).viewStatus());
+                                stringListAdapter.notifyDataSetChanged();
+                            }
+                        }
+
+                    }
+
+                    @Override
+                    public void onCancelled(DatabaseError databaseError) {
+
+                    }
+                });
             }
         });
 
@@ -99,6 +145,31 @@ public void onClick(View v)
                 new SwipeRefreshLayout.OnRefreshListener() {
                     @Override
                     public void onRefresh() {
+                        mDatabase.child(lot.toString()).limitToLast(10).addValueEventListener(new ValueEventListener() {
+                            @Override
+                            public void onDataChange(DataSnapshot dataSnapshot) {
+                                for (DataSnapshot reportSnapshot: dataSnapshot.getChildren())
+                                {
+                                    long reportTime = (long) reportSnapshot.child("reportTime").getValue();
+                                    long reportStatus = (long) reportSnapshot.child("status").getValue();
+                                    int reportStat = Integer.parseInt(Long.toString(reportStatus));
+                                    Report rep = new Report(lot,reportStat,reportTime);
+                                    if (!reports.contains(rep))
+                                    {
+                                        reports.add(rep);
+                                        reportData.add(reports.get(reports.size() - 1).readableLastReportTime());
+                                        reportData.add(reports.get(reports.size() - 1).viewStatus());
+                                        stringListAdapter.notifyDataSetChanged();
+                                    }
+                                }
+
+                            }
+
+                            @Override
+                            public void onCancelled(DatabaseError databaseError) {
+
+                            }
+                        });
                         for (int i = 2; i < reportData.size(); i = i + 2)
                         {
                             reportData.set(i, reports.get((i/2)-1).readableLastReportTime());
@@ -161,51 +232,18 @@ public void addToList() {
         reportType = drop.getSelectedItemPosition() - 1;
         if (reportType > -1 && reportType < 3) {
             reports.add(new Report(lot, reportType));
-            mDatabase.child("lots").child(lot.toString()).push().child("reports").setValue(reports.get(reports.size() - 1));
+            mDatabase.child(lot.toString()).push().setValue(reports.get(reports.size() - 1));
+            reportData.add(reports.get(reports.size() - 1).readableLastReportTime());
+            reportData.add(reports.get(reports.size() - 1).viewStatus());
+            stringListAdapter.notifyDataSetChanged();
         }
-        mDatabase.child("lots").child(lot.toString()).addChildEventListener(new ChildEventListener() {
-            @Override
-            public void onChildAdded(DataSnapshot dataSnapshot, String s) {
-                if (reports.size()>0) {
-                    reportData.add(reports.get(reports.size() - 1).readableLastReportTime());
-                    reportData.add(reports.get(reports.size() - 1).viewStatus());
-                    stringListAdapter.notifyDataSetChanged();
-                }
-            }
-
-            @Override
-            public void onChildChanged(DataSnapshot dataSnapshot, String s) {
-                Iterable<DataSnapshot> it = dataSnapshot.getChildren();
-                for (DataSnapshot postSnap : it) {
-                    Report in = postSnap.child("reports").getValue(Report.class);
-                    in = new Report(lot,in.getStatus(),in.getReportTime());
-                    reports.add(in);
-                    reportData.add(reports.get(reports.size() - 1).readableLastReportTime());
-                    reportData.add(reports.get(reports.size() - 1).viewStatus());
-                }
-            }
-
-            @Override
-            public void onChildRemoved(DataSnapshot dataSnapshot) {
-
-            }
-
-            @Override
-            public void onChildMoved(DataSnapshot dataSnapshot, String s) {
 
-            }
-
-            @Override
-            public void onCancelled(DatabaseError databaseError) {
-
-            }
-        });
     }
 
     @Override
     public void onBackPressed()
     {
-
+        super.onBackPressed();
     }
 
     private int reportType;

app/src/main/java/net/rofael/uabparkingfinder/Report.java

@@ -82,5 +82,10 @@ else if (minutes > 0)
 
     }
 
+    public boolean equals(Object o2)
+    {
+        return (this.getReportTime() == ((Report) o2).getReportTime());
+    }
+
 
 }