Fix lint warnings

app/src/main/java/net/moasdawiki/app/MainActivity.java

@@ -112,7 +112,7 @@ public class MainActivity extends AppCompatActivity {
             // event==null for on screen keyboard
             // filter for key up from physical keyboard
             if (event == null || event.getAction() == KeyEvent.ACTION_DOWN) {
-                onSearch();
+                onSearch(null);
                 return true;
             } else {
                 return false;
@@ -288,15 +288,15 @@ public class MainActivity extends AppCompatActivity {
         }
     }
 
-    public void onConfigurationHintClicked() {
+    public void onConfigurationHintClicked(View view) {
         showSettingsDialog();
     }
 
-    public void onSynchronizeHintClicked() {
+    public void onSynchronizeHintClicked(View view) {
         synchronizeWithServer();
     }
 
-    public void onSearch() {
+    public void onSearch(View view) {
         EditText searchInput = findViewById(R.id.search_input);
         String query = searchInput.getText().toString();
         query = query.trim();