Collect garbage

app/src/main/java/eu/faircode/email/FragmentOptionsMisc.java

@@ -121,6 +121,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
     private TextView tvMemoryUsage;
     private TextView tvStorageUsage;
     private TextView tvFingerprint;
+    private Button btnGC;
     private Button btnCharsets;
     private Button btnCiphers;
     private Button btnFiles;
@@ -218,6 +219,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
         tvMemoryUsage = view.findViewById(R.id.tvMemoryUsage);
         tvStorageUsage = view.findViewById(R.id.tvStorageUsage);
         tvFingerprint = view.findViewById(R.id.tvFingerprint);
+        btnGC = view.findViewById(R.id.btnGC);
         btnCharsets = view.findViewById(R.id.btnCharsets);
         btnCiphers = view.findViewById(R.id.btnCiphers);
         btnFiles = view.findViewById(R.id.btnFiles);
@@ -527,6 +529,13 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
             }
         });
 
+        btnGC.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Runtime.getRuntime().gc();
+            }
+        });
+
         btnCharsets.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {

app/src/main/res/layout/fragment_options_misc.xml

@@ -631,6 +631,16 @@
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/tvStorageUsage" />
 
+        <Button
+            android:id="@+id/btnGC"
+            style="?android:attr/buttonStyleSmall"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="12dp"
+            android:text="@string/title_advanced_gc"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/tvFingerprint" />
+
         <Button
             android:id="@+id/btnCharsets"
             style="?android:attr/buttonStyleSmall"
@@ -639,7 +649,7 @@
             android:layout_marginTop="12dp"
             android:text="@string/title_advanced_charsets"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/tvFingerprint" />
+            app:layout_constraintTop_toBottomOf="@id/btnGC" />
 
         <Button
             android:id="@+id/btnCiphers"
@@ -670,6 +680,7 @@
             swExpunge,
             swAuthPlain,swAuthLogin,swAuthNtlm,swAuthSasl,
             tvProcessors,tvMemoryClass,tvMemoryUsage,tvStorageUsage,
-            tvFingerprint,btnCharsets,btnCiphers,btnFiles" />
+            tvFingerprint,
+            btnGC,btnCharsets,btnCiphers,btnFiles" />
     </androidx.constraintlayout.widget.ConstraintLayout>
 </eu.faircode.email.ScrollViewEx>

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

@@ -550,6 +550,7 @@
     <string name="title_advanced_memory_class" translatable="false">Memory class: %1$s/%2$s Total: %3$s</string>
     <string name="title_advanced_memory_usage" translatable="false">Memory usage: %1$s/%2$s Native: %3$s</string>
     <string name="title_advanced_storage_usage" translatable="false">Storage space: %1$s/%2$s App: %3$s</string>
+    <string name="title_advanced_gc" translatable="false">GC</string>
     <string name="title_advanced_charsets" translatable="false">Charsets</string>
     <string name="title_advanced_ciphers" translatable="false">Ciphers</string>
     <string name="title_advanced_files" translatable="false">Files &gt;%1$s</string>