Fixed temp memory leak

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

@@ -246,9 +246,9 @@ public class ActivityMain extends ActivityBase implements FragmentManager.OnBack
 
             if (Helper.shouldAuthenticate(this, false))
                 Helper.authenticate(ActivityMain.this, ActivityMain.this, null,
-                        new Runnable() {
+                        new RunnableEx("auth:succeeded") {
                             @Override
-                            public void run() {
+                            public void delegate() {
                                 Intent intent = getIntent();
                                 Bundle args = new Bundle();
                                 if (intent.hasExtra("intent"))
@@ -256,9 +256,9 @@ public class ActivityMain extends ActivityBase implements FragmentManager.OnBack
                                 boot.execute(ActivityMain.this, args, "main:accounts");
                             }
                         },
-                        new Runnable() {
+                        new RunnableEx("auth:cancelled") {
                             @Override
-                            public void run() {
+                            public void delegate() {
                                 try {
                                     finish();
                                 } catch (Throwable ex) {

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

@@ -259,9 +259,10 @@ public class FragmentOptionsPrivacy extends FragmentBase implements SharedPrefer
             public void onClick(View v) {
                 final boolean biometrics = prefs.getBoolean("biometrics", false);
 
-                Helper.authenticate(getActivity(), getViewLifecycleOwner(), biometrics, new Runnable() {
+                Helper.authenticate(getActivity(), getViewLifecycleOwner(), biometrics,
+                        new RunnableEx("auth:setup") {
                             @Override
-                    public void run() {
+                            public void delegate() {
                                 try {
                                     boolean pro = ActivityBilling.isPro(getContext());
                                     if (pro) {
@@ -276,9 +277,9 @@ public class FragmentOptionsPrivacy extends FragmentBase implements SharedPrefer
                                     Log.w(ex);
                                 }
                             }
-                }, new Runnable() {
+                        }, new RunnableEx("auth:nothing") {
                             @Override
-                    public void run() {
+                            public void delegate() {
                                 // Do nothing
                             }
                         });

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

@@ -2293,9 +2293,9 @@ public class Helper {
                             }
 
                             if (!isCancelled(errorCode))
-                                ApplicationEx.getMainHandler().post(new Runnable() {
+                                ApplicationEx.getMainHandler().post(new RunnableEx("auth:error") {
                                     @Override
-                                    public void run() {
+                                    public void delegate() {
                                         ToastEx.makeText(activity,
                                                 "Error " + errorCode + ": " + errString,
                                                 Toast.LENGTH_LONG).show();
@@ -2335,9 +2335,9 @@ public class Helper {
 
             prompt.authenticate(info.build());
 
-            final Runnable cancelPrompt = new Runnable() {
+            final Runnable cancelPrompt = new RunnableEx("auth:cancelprompt") {
                 @Override
-                public void run() {
+                public void delegate() {
                     try {
                         prompt.cancelAuthentication();
                     } catch (Throwable ex) {
@@ -2352,7 +2352,12 @@ public class Helper {
                 @OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
                 public void onDestroy() {
                     Log.i("Authenticate destroyed");
-                    ApplicationEx.getMainHandler().post(cancelPrompt);
+                    ApplicationEx.getMainHandler().removeCallbacks(cancelPrompt);
+                    try {
+                        prompt.cancelAuthentication();
+                    } catch (Throwable ex) {
+                        Log.e(ex);
+                    }
                     owner.getLifecycle().removeObserver(this);
                 }
             });