Fix some back handlers

app/src/main/java/com/todoroo/astrid/activity/TaskListFragment.kt

@@ -249,8 +249,8 @@ class TaskListFragment : Fragment(), OnRefreshListener, Toolbar.OnMenuItemClickL
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-
+        
-        requireActivity().onBackPressedDispatcher.addCallback(onBackPressed)
+        requireActivity().onBackPressedDispatcher.addCallback(requireActivity(), onBackPressed)
     }
 
     @OptIn(ExperimentalAnimationApi::class)

app/src/main/java/org/tasks/activities/BaseListSettingsActivity.kt

@@ -18,6 +18,7 @@ import org.tasks.dialogs.ColorWheelPicker
 import org.tasks.dialogs.DialogBuilder
 import org.tasks.dialogs.IconPickerDialog
 import org.tasks.dialogs.IconPickerDialog.IconPickerCallback
+import org.tasks.extensions.addBackPressedCallback
 import org.tasks.injection.ThemedInjectingAppCompatActivity
 import org.tasks.themes.ColorProvider
 import org.tasks.themes.CustomIcons.getIconResId
@@ -63,6 +64,10 @@ abstract class BaseListSettingsActivity : ThemedInjectingAppCompatActivity(), Ic
             toolbar.inflateMenu(R.menu.menu_tag_settings)
         }
         toolbar.setOnMenuItemClickListener(this)
+
+        addBackPressedCallback {
+            discard()
+        }
     }
 
     override fun onSaveInstanceState(outState: Bundle) {
@@ -71,11 +76,6 @@ abstract class BaseListSettingsActivity : ThemedInjectingAppCompatActivity(), Ic
         outState.putInt(EXTRA_SELECTED_ICON, selectedIcon)
     }
 
-    override fun onBackPressed() {
-        super.onBackPressed()
-        discard()
-    }
-
     protected abstract fun hasChanges(): Boolean
     protected abstract suspend fun save()
     protected abstract val isNew: Boolean

app/src/main/java/org/tasks/caldav/BaseCaldavAccountSettingsActivity.kt

@@ -44,6 +44,7 @@ import org.tasks.dialogs.Linkify
 import org.tasks.extensions.Context.cookiePersistor
 import org.tasks.extensions.Context.hideKeyboard
 import org.tasks.extensions.Context.openUri
+import org.tasks.extensions.addBackPressedCallback
 import org.tasks.injection.ThemedInjectingAppCompatActivity
 import org.tasks.security.KeyStoreEncryption
 import org.tasks.ui.DisplayableException
@@ -145,6 +146,10 @@ abstract class BaseCaldavAccountSettingsActivity : ThemedInjectingAppCompatActiv
                 }
             }
         }
+
+        addBackPressedCallback {
+            discard()
+        }
     }
 
     @get:StringRes
@@ -333,11 +338,6 @@ abstract class BaseCaldavAccountSettingsActivity : ThemedInjectingAppCompatActiv
         }
     }
 
-    override fun onBackPressed() {
-        super.onBackPressed()
-        discard()
-    }
-
     private fun removeAccountPrompt() {
         if (requestInProgress()) {
             return

app/src/main/java/org/tasks/extensions/ActivityExtensions.kt

@@ -1,10 +1,23 @@
 package org.tasks.extensions
 
 import android.app.Activity
+import androidx.activity.ComponentActivity
+import androidx.activity.OnBackPressedCallback
 import org.tasks.extensions.Context.hideKeyboard
 
 fun Activity.hideKeyboard() {
     currentFocus?.let {
         hideKeyboard(it)
     }
+}
+
+fun ComponentActivity.addBackPressedCallback(block: () -> Unit) {
+    onBackPressedDispatcher.addCallback(
+        this,
+        object : OnBackPressedCallback(true) {
+            override fun handleOnBackPressed() {
+                block()
+            }
+        }
+    )
 }

app/src/main/java/org/tasks/locale/ui/activity/TaskerCreateTaskActivity.java

@@ -1,5 +1,6 @@
 package org.tasks.locale.ui.activity;
 
+import android.annotation.SuppressLint;
 import android.content.Intent;
 import android.os.Bundle;
 import android.view.MenuItem;
@@ -105,9 +106,9 @@ public final class TaskerCreateTaskActivity extends AbstractFragmentPluginAppCom
     return binding.title.getText().toString().trim();
   }
 
+  @SuppressLint("MissingSuperCall")
   @Override
   public void onBackPressed() {
-    super.onBackPressed();
     discardButtonClick();
   }
 

app/src/main/java/org/tasks/tags/TagPickerActivity.kt

@@ -16,10 +16,10 @@ import org.tasks.Strings.isNullOrEmpty
 import org.tasks.billing.Inventory
 import org.tasks.data.TagData
 import org.tasks.databinding.ActivityTagPickerBinding
+import org.tasks.extensions.addBackPressedCallback
 import org.tasks.injection.ThemedInjectingAppCompatActivity
 import org.tasks.themes.ColorProvider
 import org.tasks.themes.Theme
-import java.util.*
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -65,6 +65,22 @@ class TagPickerActivity : ThemedInjectingAppCompatActivity() {
         recyclerView.layoutManager = LinearLayoutManager(this)
         viewModel.observe(this) { recyclerAdapter.submitList(it) }
         editText.setText(viewModel.text)
+
+        addBackPressedCallback {
+            if (isNullOrEmpty(viewModel.text)) {
+                val data = Intent()
+                data.putExtra(EXTRA_TASKS, taskIds)
+                data.putParcelableArrayListExtra(
+                    EXTRA_PARTIALLY_SELECTED,
+                    viewModel.getPartiallySelected()
+                )
+                data.putParcelableArrayListExtra(EXTRA_SELECTED, viewModel.getSelected())
+                setResult(Activity.RESULT_OK, data)
+                finish()
+            } else {
+                clear()
+            }
+        }
     }
 
     private fun onToggle(tagData: TagData, vh: TagPickerViewHolder) = lifecycleScope.launch {
@@ -80,20 +96,6 @@ class TagPickerActivity : ThemedInjectingAppCompatActivity() {
         viewModel.search(text?.toString() ?: "")
     }
 
-    override fun onBackPressed() {
-        super.onBackPressed()
-        if (isNullOrEmpty(viewModel.text)) {
-            val data = Intent()
-            data.putExtra(EXTRA_TASKS, taskIds)
-            data.putParcelableArrayListExtra(EXTRA_PARTIALLY_SELECTED, viewModel.getPartiallySelected())
-            data.putParcelableArrayListExtra(EXTRA_SELECTED, viewModel.getSelected())
-            setResult(Activity.RESULT_OK, data)
-            finish()
-        } else {
-            clear()
-        }
-    }
-
     private fun clear() {
         editText.setText("")
     }