Added clear log menu

app/src/main/java/eu/faircode/netguard/ActivityLog.java

@@ -22,6 +22,8 @@ package eu.faircode.netguard;
 import android.app.Activity;
 import android.os.Bundle;
 import android.support.v7.app.AppCompatActivity;
+import android.view.Menu;
+import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.widget.ListView;
 
@@ -31,7 +33,7 @@ public class ActivityLog extends AppCompatActivity {
 
     private DatabaseHelper.LogChangedListener listener = new DatabaseHelper.LogChangedListener() {
         @Override
-        public void onAdded() {
+        public void onChanged() {
             runOnUiThread(new Runnable() {
                 @Override
                 public void run() {
@@ -67,11 +69,22 @@ public class ActivityLog extends AppCompatActivity {
         super.onDestroy();
     }
 
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        MenuInflater inflater = getMenuInflater();
+        inflater.inflate(R.menu.log, menu);
+
+        return true;
+    }
+
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
             case android.R.id.home:
                 finish();
                 return true;
+            case R.id.menu_clear:
+                dh.clear();
+                return true;
         }
         return super.onOptionsItemSelected(item);
     }

app/src/main/java/eu/faircode/netguard/DatabaseHelper.java

@@ -74,7 +74,21 @@ public class DatabaseHelper extends SQLiteOpenHelper {
 
         for (LogChangedListener listener : logChangedListeners)
             try {
-                listener.onAdded();
+                listener.onChanged();
+            } catch (Throwable ex) {
+                Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
+            }
+
+        return this;
+    }
+
+    public DatabaseHelper clear() {
+        SQLiteDatabase db = this.getReadableDatabase();
+        db.delete("log", null, new String[]{});
+
+        for (LogChangedListener listener : logChangedListeners)
+            try {
+                listener.onChanged();
             } catch (Throwable ex) {
                 Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
             }
@@ -98,6 +112,6 @@ public class DatabaseHelper extends SQLiteOpenHelper {
     }
 
     public interface LogChangedListener {
-        void onAdded();
+        void onChanged();
     }
 }

app/src/main/res/menu/log.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item
+        android:id="@+id/menu_clear"
+        android:title="@string/menu_clear" />
+</menu>

app/src/main/res/values/strings.xml

@@ -24,6 +24,8 @@ These issues are caused by bugs in Android, or in the software provided by the m
     <string name="menu_support">Support</string>
     <string name="menu_about">About</string>
 
+    <string name="menu_clear">Clear</string>
+
     <string name="setting_defaults">Defaults</string>
     <string name="setting_whitelist_wifi">Block Wi-Fi</string>
     <string name="setting_whitelist_other">Block mobile</string>