fix: change roots for Snackbars to allow swiping

Author: AKPWebDesign

app/src/main/java/tech/akpmakes/android/taskkeeper/MainActivity.java

@@ -127,7 +127,7 @@ public void onComplete(@NonNull Task<AuthResult> task) {
                             } else {
                                 // If sign in fails, display a message to the user.
                                 Log.w(TAG, "signInAnonymously:failure", task.getException());
-                                Snackbar.make(findViewById(android.R.id.content), R.string.sign_in_failure,
+                                Snackbar.make(findViewById(R.id.events_list), R.string.sign_in_failure,
                                         Snackbar.LENGTH_LONG).show();
                                 updateUI(null);
                             }
@@ -177,7 +177,7 @@ protected void onActivityResult(int requestCode, int resultCode, Intent data) {
                 WhenEvent evt = new WhenEvent(data);
 
                 if(evt.getName().length() == 0) {
-                    Snackbar.make(findViewById(android.R.id.content), R.string.snackbar_save_error_name,
+                    Snackbar.make(findViewById(R.id.events_list), R.string.snackbar_save_error_name,
                             Snackbar.LENGTH_LONG).show();
                     return;
                 }
@@ -189,10 +189,10 @@ protected void onActivityResult(int requestCode, int resultCode, Intent data) {
                         mDBQuery.getRef().push().setValue(evt);
                     }
 
-                    Snackbar.make(findViewById(android.R.id.content), R.string.snackbar_save_success,
+                    Snackbar.make(findViewById(R.id.events_list), R.string.snackbar_save_success,
                             Snackbar.LENGTH_LONG).show();
                 } else {
-                    Snackbar.make(findViewById(android.R.id.content), R.string.snackbar_save_error,
+                    Snackbar.make(findViewById(R.id.events_list), R.string.snackbar_save_error,
                             Snackbar.LENGTH_LONG).show();
                 }
             }

app/src/main/java/tech/akpmakes/android/taskkeeper/SettingsActivity.java

@@ -98,7 +98,7 @@ public void onCreate(Bundle savedInstanceState) {
             findPreference("app_version").setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
                 @Override
                 public boolean onPreferenceClick(Preference preference) {
-                    Snackbar.make(getActivity().findViewById(android.R.id.content), R.string.smiley,
+                    Snackbar.make(getActivity().findViewById(R.id.container), R.string.smiley,
                             Snackbar.LENGTH_LONG).show();
                     return true;
                 }
@@ -307,7 +307,7 @@ public void onComplete(@NonNull Task<AuthResult> task) {
                         } else {
                             // If sign in fails, display a message to the user.
                             Log.w(TAG, "signInWithCredential:failure", task.getException());
-                            Snackbar.make(getActivity().findViewById(android.R.id.content), "Authentication failed.",
+                            Snackbar.make(getActivity().findViewById(R.id.container), "Authentication failed.",
                                     Snackbar.LENGTH_LONG).show();
                         }
                         updateUI();

app/src/main/java/tech/akpmakes/android/taskkeeper/SwipeHandler.java

@@ -69,7 +69,7 @@ public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {
     }
 
     private void createSnackbar(int action, WhenEvent evt, DatabaseReference item) {
-        final Snackbar sb = Snackbar.make(mainActivity.findViewById(android.R.id.content),
+        final Snackbar sb = Snackbar.make(mainActivity.findViewById(R.id.events_list),
                 mainActivity.getString(action), Snackbar.LENGTH_INDEFINITE);
         sb.setAction(R.string.snackbar_undo_action, new UndoListener(evt, item, sb));
         sb.show();