history fixing

marcschepp · May 12, 2021 · 46f0819 · 46f0819
1 parent 02646ff
commit 46f0819
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Showing 5 changed files with 28 additions and 8 deletions.
diff --git a/.idea/misc.xml b/.idea/misc.xml
diff --git a/app/src/main/java/com/example/dhapp/DbManager.java b/app/src/main/java/com/example/dhapp/DbManager.java
@@ -55,6 +55,10 @@ public void addHistoryElement(String historyName) {
         db.execSQL("INSERT INTO history (name) VALUES ('" + historyName + "')");
     }
 
+    public void deleteHistoryElement(String historyverlauf) {
+        db.execSQL("DELETE FROM history WHERE name = '" + historyverlauf + "'");
+    }
+
     public String[] outputStock() throws SQLException {
 
         SQLiteDatabase db = getReadableDatabase();
@@ -108,8 +112,4 @@ public String[] getElements(String ColumnName, String TableName) {
         cursor.close();
         return resultValues;
     }
-
-    public void deleteHistoryElement(int id) {
-        db.execSQL("DELETE FROM history WHERE historyID="+id);
-    }
 }
diff --git a/app/src/main/java/com/example/dhapp/HistoryFragment.java b/app/src/main/java/com/example/dhapp/HistoryFragment.java
@@ -4,6 +4,8 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.TextView;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -13,6 +15,9 @@
 
 public class HistoryFragment extends Fragment {
 
+    DbManager dbm;
+    TextView historyName;
+    Button deleteHistory;
 
     @Nullable
     @Override
@@ -27,6 +32,21 @@ public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceStat
 
         try {
 
+            dbm = new DbManager(getActivity());
+            String name;
+
+            historyName = view.findViewById(R.id.historyName);
+
+            name = historyName.getText().toString();
+            deleteHistory = view.findViewById(R.id.deleteHistoryButton);
+            deleteHistory.setOnClickListener(v -> {
+                try{
+                    dbm.deleteHistoryElement(name);
+                }catch (Exception e){
+                    e.printStackTrace();
+                }
+            });
+
             RecyclerView recyclerView;
 
             String[] HistoryName;

diff --git a/app/src/main/java/com/example/dhapp/MyAdapterHistory.java b/app/src/main/java/com/example/dhapp/MyAdapterHistory.java
@@ -43,7 +43,7 @@ public class MyViewHolder extends RecyclerView.ViewHolder {
 
         public MyViewHolder(@NonNull View itemView) {
             super(itemView);
-            stockNameView = itemView.findViewById(R.id.HistoryName);
+            stockNameView = itemView.findViewById(R.id.historyName);
         }
     }
 }
diff --git a/app/src/main/res/layout/my_history_row.xml b/app/src/main/res/layout/my_history_row.xml
@@ -20,7 +20,7 @@
             android:layout_height="match_parent">
 
             <TextView
-                    android:id="@+id/HistoryName"
+                    android:id="@+id/historyName"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:layout_marginStart="16dp"
@@ -32,7 +32,7 @@
                     app:layout_constraintTop_toTopOf="parent" />
 
             <ImageButton
-                android:id="@+id/imageButton2"
+                android:id="@+id/deleteHistoryButton"
                 android:layout_width="40dp"
                 android:layout_height="40dp"
                 android:layout_marginTop="16dp"