When viewing a video in Tusky, there is a top toolbar where the
description is shown and the bottom toolbar where play, forward,
backward, and scrub controls are found. In both Tusky 23 and the new
media3 video player code, the logic for showing these toolbars is
*unrelated*; Tusky catches tap events and shows and hides the
description, and the Android media library separately catches tap events
and shows and hides the bottom toolbar. Meanwhile, Tusky and the Android
media library each separately manage a set of logic for auto-hiding
their respective toolbars after a certain number of seconds has passed.
This all results in several problems:
- The top and bottom toolbars can desync, so that one is visible and the
other is not, and tapping to show/hide after this will only swap which
one is visible. This happens *every* time you switch to another
application then back to Tusky while the video player is up.
- You can also desync the top and bottom toolbars in this way by simply
tapping very rapidly.
- The autohide logic was difficult for us to control or customize,
because it was partially hidden inside the Android libraries (relevant
because under media3, the autohide delay increased from 3 to something
like 5 or 6 seconds).
In this patch, I disabled all auto- and tap-based show/hide logic in
media3 and set the Tusky-side show/hide to directly control the media3
toolbar. I then audited the code with printfs until I understood the
state machine of show/hide, and removed anything irrational (some code
was either unreachable, or redundant; either these lines were broken in
the media3 transition, or they never worked).¹
While doing this, I made two policy changes:
- As discussed on Matrix, the autohide delay is now 4 seconds. (In
discussions with users on Mastodon, some complained the previous 3
seconds was too short; but in my opinion and [I think?] charlag's, the
new 5 seconds is too long).
- In the pre-existing code, if the user has hidden the controls, and
they switch to another app and back, the controls display for 4 seconds
then re-hide themselves, just like if the video had been presented for
the first time. I think this is good and kept it— *however* I made a
decision if the user intentionally taps to display the controls, *then*
switches to another app and back, the controls should *not* auto-hide,
because the user most recently requested those controls be shown.
Tests I performed on the final PR (successfully):
- Start video. Expect: toolbar+description hides after 4 seconds.
- Start video. Pause. Resume. Expect: t+d hides after 4 seconds.
- Start video. Wait 4 seconds until t+d hide. Switch to other app.
Switch back. Expect: t+d reappears, then hides after 4 seconds.
- Start video. Wait 4 seconds until t+d hide. Tap to show t+d. Switch to
other app. Switch back. Expect: t+d appear, do NOT autohide.
- Start video. Before 4 seconds up, switch to other app. Switch back.
Expect: t+d reappears, then hides after 4 seconds.
- Start video. Pause. Resume. Before 4 seconds up, switch to other app.
Switch back. Expect: t+d reappears, then hides after 4 seconds.
- Start video. Wait 4 seconds until t+d hide. Tap rapidly over and over
for many seconds. Expect: Nothing weird
- Start *audio*. Expect: At no point does controller autohide, not even
if I switch to another app and back, but I can hide it by manually
tapping
These tests were performed on Android 13. There is an entirely separate
`Build.VERSION.SDK_INT <= 23` path I did not test, but Android Studio
says this is dead code (I think it thinks our minimum SDK is higher than
that?)
---
<small>¹ Incidentally, the underlying cause of #4073 (the show/resume
part of it anyway) turned out to be that the STATE_READY event was being
received not just on video load but also a second time on app resume,
causing certain parts of the initialization code to run a second time
although the fragment had already been fully initialized.</small>
Migrate to touchimageview from photoview, and adjust the touch logic to correctly handle single finger drag, two finger pinch/stretch, flings, taps, and swipes.
As before, the features are:
- Single tap, show/hide controls and media description
- Double tap, zoom in/out
- Single finger drag up/down, scale/translate image, dismiss if scrolled too far
- Single finger drag left/right
- When not zoomed, swipe to next image if multiple images present
- When zoomed, scroll to edge of image, then to next image if multiple images present
- Two finger pinch/zoom, zoom in/out on the image
Behaviour differences to previous code
1. Bug fix: The image can't get "stuck" when zoomed, and impossible to scroll
2. Bug fix: Pinching is not mis-interpreted as a fling, closing the image
3. Bug fix: The zoom state of images is not lost or misinterpreted when the user swipes through multiple images
4. Bug fix: Double-tap zooms all the way, instead of stopping
5. Tapping outside the image does not dismiss it, controls and description show/hide
Fixes https://github.com/tuskyapp/Tusky/issues/3562, https://github.com/tuskyapp/Tusky/issues/2297
* Unmodified output from "Convert Java to Kotlin" on NotificationsFragment.java
* Bare minimum changes to get this to compile and run
- Use `lateinit` for `eventhub`, `adapter`, `preferences`, and `scrolllistener`
- Removed override for accountManager, it can be used from the superclass
- Add `?.` where non-nullity could not (yet) be guaranteed
- Remove `?` from type lists where non-nullity is guaranteed
- Explicitly convert lists to mutable where necessary
- Delete unused function `findReplyPosition`
* Remove all unnecessary non-null (!!) assertions
The previous change meant some values are no longer nullable. Remove the
non-null assertions.
* Lint ListStatusAccessibilityDelegate call
- Remove redundant constructor
- Move block outside of `()`
* Use `let` when handling compose button visibility on scroll
* Replace a `requireNonNull` with `!!`
* Remove redundant return values
* Remove or rename unused lambda parameters
* Remove unnecessary type parameters
* Remove unnecessary null checks
* Replace cascading-if statement with `when`
* Simplify calculation of `topId`
* Use more appropriate list properties and methods
- Access the last value with `.last()`
- Access the last index with `.lastIndex`
- Replace logical-chain with `asRightOrNull` and `?.`
- `.isNotEmpty()`, not `!...isEmpty()`
* Inline unnecessary variable
* Use PrefKeys constants instead of bare strings
* Use `requireContext()` instead of `context!!`
* Replace deprecated `onActivityCreated()` with `onViewCreated()`
* Remove unnecessary variable setting
* Replace `size == 0` check with `isEmpty()`
* Format with ktlint, no functionality changes
* Convert NotifcationsAdapter to Kotlin
Does not compile, this is the unchanged output of the "Convert to Kotlin"
function
* Minimum changes to get NotificationsAdapter to compile
* Remove unnecessary visibility modifiers
* Use `isNotEmpty()`
* Remove unused lambda parameters
* Convert cascading-if to `when`
* Simplifiy assignment op
* Use explicit argument names with `copy()`
* Use `.firstOrNull()` instead of `if`
* Mark as lateinit to avoid unnecessary null checks
* Format with ktlint, whitespace changes only
* Bare minimum necessary to demonstrate paging in notifications
Create `NotificationsPagingSource`. This uses a new `notifications2()` API
call, which will exist until all the code has been adapted. Instead of
using placeholders,
Create `NotificationsPagingAdapter` (will replace `NotificationsAdapater`)
to consume this data.
Expose the paging source view a new `NotificationsViewModel` `flow`, and
submit new pages to the adapter as they are available in
`NotificationsFragment`.
Comment out any other code in `NotificationsFragment` that deals with
loading data from the network. This will be updated as necessary, either
here, or in the view model.
Lots of functionality is missing, including:
- Different views for different notification types
- Starting at the remembered notification position
- Interacting with notifications
- Adjusting the UI state to match the loading state
These will be added incrementally.
* Migrate StatusNotificationViewHolder impl. to NotificationsPagingAdapter
With this change `NotificationsPagingAdapter` shows notifications about a
status correctly.
- Introduce a `ViewHolder` abstract class that all Notification view holders
derive from. Modify the fallback view holder to use this.
- Implement `StatusNotificationViewHolder`. Much of the code is from the
existing implementation in the `NotificationAdapater`.
- The original code split the code that binds values to views between the
adapter's `bindViewHolder` method and the view holder's methods.
In this code, all of the binding code is in the view holder, in a `bind`
method. This is called by the adapter's `bindViewHolder` method. This keeps
all the binding logic in the view holder, where it belongs.
- The new `StatusNotificationViewHolder` uses view binding to access its views
instead of `findViewById`.
- Logically, information about whether to show sensitive media, or open
content warnings should be part of the `StatusDisplayOptions`. So add those
as fields, and populate them appropriately.
This affects code outside notification handling, which will be adjusted
later.
* Note some TODOs to complete before the PR is finished
* Extract StatusNotificationViewHolder to a new file
* Add TODO for NotificationViewData.Concrete
* Convert the adapter to take NotificationViewData.Concrete
* Add a view holder for regular status notifications
* Migrate Follow and FollowRequest notifications
* Migrate report notifications
* Convert onViewThread to use the adapter data
* Convert onViewMedia to use the adapter data
* Convert onMore to use the adapter data
* Convert onReply to use the adapter data
* Convert NotificationViewData to Kotlin
* Re-implement the reblog functionality
- Move reblogging in to the view model
- Update the UI via the adapter's `snapshot()` and `notifyItemChanged()`
methods
* Re-implement the favourite functionality
Same approach as reblog
* Re-implement the bookmark functionality
Same approach as reblog
* Add TODO re StatusActionListener interface
* Add TODO re event handling
* Re-implementing the voting functionality
* Re-implement viewing hidden content
- Hidden media
- Content behind a content warning
* Add a TODO re pinning
* Re-implement "Show more" / "Show less"
* Delete unused updateStatus() function
* Comment out the scroll listener for the moment
* Re-implement applying filters to notifications
Introduce `NotificationsRepository`, to provide access to the notifications
stream.
When changing the filters the flow is as follows:
- User clicks "Apply" in the fragment.
- Fragment calls `viewModel.accept()` with a `UiAction.ApplyFilter` (new
class).
- View model maintains a private flow of incoming UI actions. The new action
is emitted to that flow.
- In view model, `notificationFilter` waits for `.ApplyFilter` actions, and
ensures the filter is saved, then emits it.
- In view model, `pagingDataFlow` waits for new items from
`notificationsFilter` and fetches the notifications from the repository in
response. The repository provides `Notification`, so the model maps them to
`NotificationViewData.Concrete` for display by the adapter.
- In view model the UI state also waits for new items from
`notificationsFilter` and emits a new `UiState` every time the filter is
changed.
When opening the fragment for the first time:
- All of the above machinery, but `notificationFilter` also fetches the filter
from the active account and emits that first. This triggers the first fetch
and the first update of `uiState`.
Also:
- Add TODOs for functionality that is not implemented yet
- Delete a lot of dead code from NotificationsFragment
* Include important preference values in `uiState`
Listen to the flow of eventHub events, filtered to preference changes that
are relevant to the notification view.
When preferences change (or when the view model starts), fetch the current
values, and include them in `uiState`.
Remove preference handling from `NotificationsFragment`, and just use
the values from `uiState`.
Adjust how the `useAbsoluteTime` preference is handled. The previous code
loaded new content (via a diffutil) in to the adapter, which would trigger
a re-binding of the timestamp.
As the adapter content is immutable, the new code simply triggers a
re-binding of the views that are currently visible on screen.
* Update UI in response to different load states
Notifications can be loaded at the top and bottom of the timeline. Add a
new layout to show the progress of these loads, and any errors that can
occur.
Catch network errors in `NotificationsPagingSource` and convert to
`LoadState.Error`.
Add a header/footer to the notifications list to show the load state.
Collect the load state from the adapter, use this to drive the visibility
of different views.
* Save and restore the last read notification ID
Use this when fetching notifications, to centre the list around the
notification that was last read.
* Call notifyItemRangeChanged with the correct parameters
* Don't try and save list position if there are no items in the list
* Show/hide the "Nothing to see" view appropriately
* Update comments
* Handle the case where the notification key no longer exists
* Re-implement support for showMediaPreview and other settings
* Re-implement "hide FAB when scrolling" preference
* Delete dead code
* Delete Notifications Adapater and Placeholder types
* Remove NotificationViewData.Concrete subclass
Now there's no Placeholder, everything is a NotificationViewData.
* Improve how notification pages are loaded if the first notification is missing or filtered
* Re-implement clear notifications, show errors
* s/default/from/
* Add missing headers
* Don't process bookmarking via EventHub
- Initiating a bookmark is triggered by the fragment sending a
StatusUiAction.Bookmark
- View model receives this, makes API call, waits for response, emits either
a success or failure state
- Fragment collects success/failure states, updates the UI accordingly
* Don't process favourites via EventHub
* Don't process reblog via EventHub
* Don't process poll votes with EventHub
This removes EventHub from the fragment
* Respond to follow requests via the view model
* Docs and cleanup
* Typo and editing pass
* Minor edits for clarity
* Remove newline in diagram
* Reorder sequence diagram
* s/authorize/accept/
* s/pagingDataFlow/pagingData/
* Add brief KDoc
* Try and fetch a full first page of notifications
* Call the API method `notifications` again
* Log UI errors at the point of handling
* Remove unused variable
* Replace String.format() with interpolation
* Convert NotificationViewData to data class
* Rename copy() to make(), to avoid confusion with default copy() method
* Lint
* Update app/src/main/res/layout/simple_list_item_1.xml
* Update app/src/main/java/com/keylesspalace/tusky/components/notifications/NotificationsPagingAdapter.kt
* Update app/src/main/java/com/keylesspalace/tusky/components/notifications/NotificationsViewModel.kt
* Update app/src/main/java/com/keylesspalace/tusky/fragment/NotificationsFragment.kt
* Update app/src/main/java/com/keylesspalace/tusky/viewdata/NotificationViewData.kt
* Initial NotificationsViewModel tests
* Add missing import
* More tests, some cleanup
* Comments, re-order some code
* Set StateRestorationPolicy.PREVENT_WHEN_EMPTY
* Mark clearNotifications() as "suspend"
* Catch exceptions from clearNotifications and emit
* Update TODOs with explanations
* Ensure initial fetch uses a null ID
* Stop/start collecting pagingData based on the lifecycle
* Don't hide the list while refreshing
* Refresh notifications on mutes and blocks
* Update tests now clearNotifications is a suspend fun
* Add "Refresh" menu to NotificationsFragment
* Use account.name over account.displayName
* Update app/src/main/java/com/keylesspalace/tusky/fragment/NotificationsFragment.kt
Co-authored-by: Konrad Pozniak <connyduck@users.noreply.github.com>
* Mark layoutmanager as lateinit
* Mark layoutmanager as lateinit
* Refactor generating UI text
* Add Copyright header
* Correctly apply notification filters
* Show follow request header in notifications
* Wait for follow request actions to complete, so the reqeuest is sent
* Remove duplicate copyright header
* Revert copyright change in unmodified file
* Null check response body
* Move NotificationsFragment to component.notifications
* Use viewlifecycleowner.lifecyclescope
* Show notification filter as a dialog rather than a popup window
The popup window:
- Is inconsistent UI
- Requires a custom layout
- Didn't play nicely with viewbinding
* Refresh adapter on block/mute
* Scroll up slightly when new content is loaded
* Restore progressbar
* Lint
* Update app/src/main/res/layout/simple_list_item_1.xml
---------
Co-authored-by: Konrad Pozniak <connyduck@users.noreply.github.com>
* Add "Refresh" accessibility menu to TimelineFragment
Per https://developer.android.com/reference/androidx/swiperefreshlayout/widget/SwipeRefreshLayout
the layout does not provide accessibility events, and a menu item should be
provided as an alternative method for refreshing the content.
In `TimelineFragment`:
- Implement the `MenuProvider` interface so it can populate the action bar
menu in activities that host the fragment
- Create a "Refresh" menu item, and refresh the state when it is selected
`MainActivity` has to change how the menu is created, so that fragments
can add items to it.
In `MainActivity`:
- Call `setSupportActionBar` so `mainToolbar` participates in menus
- Implement the `MenuProvider` interface, and move menu creation there
- Set the title via supportActionBar
* Never show the refresh item as a menubar action
Per guidelines in https://developer.android.com/develop/ui/views/touch-and-input/swipe/add-swipe-interface#AddRefreshAction
* Add "Refresh" menu item for AccountMediaFragment
Also, fix the colour of the refresh progress indicator
* Implement "Refresh" for AnnouncementsActivity
* Add "Refresh" menu for ConversationsFragment
* Keep the tabs adapter over the life of the viewpager
Make `tabs` `var` instead of `val` in `MainPagerAdapter` so it can be updated
when tabs change.
Then detach the `tabLayoutMediator`, update the tabs, and call
`notifyItemRangeChanged` in `setupTabs()`.
This fixes a bug (not sure if it's this code, or in ViewPager2) where
assigning a new adapter to the view pager seemed to result in a leak of one
or more fragments. This wasn't user-visible, but it's a leak, and it becomes
user-visible when fragments want to display menus.
This also fixes two other bugs:
1. Be on the left-most tab. Scroll down a bit. Then modify the tabs at
"Account preferences > tabs", but keep the left-most tab as-is.
Then go back to MainActivity. Your reading position in the left-most
tab has been jumped to the top.
2. Be on any non-left-most tab. Then modify the tab list by reordering tabs
(adding/removing tabs is also OK).
Then go back to MainActivity. Your tab selection has been overridden,
and the left-most tab has been selected.
Because the fragments are not destroyed unnecessarily your reading position
is retained. And it remembers the tab you had selected, and as long as that
tab is still present you will be returned to it, even if it's changed
position in the list.
Fixes https://github.com/tuskyapp/Tusky/issues/3251
* Add "Refresh" menu for ScheduledStatusActivity
* Lint
* Add "Refresh" menu for SearchFragment / SearchActivity
* Explicitly set the searchview width
Using "collapseActionView" requires the user to press "Back" twice to exit
the activity, which is not acceptable.
* Move toolbar handling in to ViewThreadActivity
Previous code had the toolbar in the fragment's layout. Refactor to make
consistent with other activities, and move the toolbar in to the activity
layout.
Implement MenuProvider in ViewThreadFragment to adjust the menu in the
activity.
* Add "Refresh" menu to ViewThreadFragment
* Implement "Refresh" for ViewEditsFragment
* Lint
* Add "Refresh" menu to ReportStatusesFragment
* Add "Refresh" menu to NotificationsFragment
* Rename menu resource files
Be consistent with the layout resource files, which have an activity/fragment
prefix, then the lower_snake_case name of the activity or fragment it's for.
* Only enable refresh menu if swiptorefresh is enabled
Some timelines don't have swipetorefresh enabled (e.g., those shown on
AccountActivity). In those cases don't add the refresh menu, rely on the
hosting activity to provide it.
Update AccountActivity to provide the refresh menu item.
* Update ViewVideoFragment.kt
Testing
- Open audio attachment: https://solarpunk.moe/@vv/109562659215759090
- Ensure media control UI and alt text is shown once playback starts
Fixes#3261
* Fix commit issue
* Fix spacing
* Kotlin 1.8.10
https://github.com/JetBrains/kotlin/releases/tag/v1.8.10
* Migrate onActivityCreated to onViewCreated
* More final modifiers
* Java Cleanups
* Kotlin cleanups
* More final modifiers
* Const value TOOLBAR_HIDE_DELAY_MS
* Revert
* make BlocksAdapter use viewbinding
* remove LoadingFooterViewHolder
* cleanup code
* move accountlist to component packes
* make FollowRequestsHeaderAdapter use viewbinding
* add license to MutesAdapter
* move accountlist to component packages
* use ConstraintLayout in item_blocked_user.xml
* support the bot badge everywhere
* cleanup code
* cleanup xml files
* ktlint
* ktlint
* Remove rxjava from API calls used by AccountListFragment
* Remove rxjava from API calls used by AccountViewModel::changeRelationship()
The affected API functions are also called from
- ReportViewModel.kt
- SearchViewModel.kt
- AccountListFragment.kt
- SFragment.java
- TimelineCases.kt
so they have also been updated.
This change requires bridging from Java code to Kotlin `suspend` functions,
by creating wrappers for the `mute` and `block` functions that can be
called from Java and create a coroutine scope.
I've deliberately made this fairly ugly so that it sticks out and can be
removed later.
* Use "Throwable" type and name
* Delete 46.json
Not sure where this came from.
* Remove rxjava from the deleteStatus call path
* Emit log messages with the correct tag
* Add another log tag, and lint
* Use TAG in log messages now it's present
* Lint
* Move viewModelScope.launch in to changeRelationshop()
* Use onSuccess/onFailure pair instead of fold
* Return Deferred when deleting statuses
* Fix saving changes to statuses when editing
With the previous code backing out of a status editing operation where changes
had been made (whether it was editing an existing status, a scheduled status,
or a draft) would prompt the user to save the changes as a new draft.
See https://github.com/tuskyapp/Tusky/issues/2704 and
https://github.com/tuskyapp/Tusky/issues/2705 for more detail.
The fix:
- Create an enum to represent the four different kinds of edits that can
happen
- Editing a new status (i.e., composing it for the first time)
- Editing a posted status
- Editing a draft
- Editing a scheduled status
- Store this in ComposeOptions, and set it appropriately everywhere
ComposeOptions is created.
- Check the edit kind when backing out of ComposeActivity, and use this to
show one of three different dialogs as appropriate so the user can:
- Save as new draft or discard changes
- Continue editing or discard changes
- Update existing draft or discard changes
Also fix ComposeViewModel.didChange(), which erroneously reported false if the
old text started with the new text (e.g., if the old text was "hello, world"
and it was edited to "hello", didChange() would not consider that to be a
change).
Fixes https://github.com/tuskyapp/Tusky/issues/2704,
https://github.com/tuskyapp/Tusky/issues/2705
* Use orEmpty extension function
* Fix off-by-one error in HttpHeaderLink
Link headers with multiple URLs with multiple parameters were being parsed
incorrectly.
Detected by adding unit tests ahead of converting to Kotlin.
* Convert util/HttpHeaderLink from Java to Kotlin
* Convert util/ThemeUtils from Java to Kotlin
* Convert util/TimestampUtils from Java to Kotlin
* Add tests for PairedList
* Convert util/PairedList from Java to Kotlin
* Implement feedback from PR
* Relicense as GPL
* Fix auto play when swiping between attachments
Fixes an issue where attachment doesn't autoplay when swiping left/right from initial attachment.
Fixes#3066
* Fix lint error for wild card imports
* Convert AccountViewHolder from Java to Kotlin
Use view binding in the converted code, which requires small changes in code
that calls constructors.
Pass showBotOverlays as a parameter, rather than having the code reach in to
the shared preferences, fixing a layering violation. This affects callers
and classes derived from AccountAdapter.
* Use 2-arg getString
* Simplify setting bot badge indicator
- Specify the drawable in the XML
- Use visible() to set visibility
- Rename ID to account_bot_badge to make it clearer that this is all it is for
* Use lateinit to avoid needing !! later
* Remove rxjava from API calls used by AccountListFragment
* Remove rxjava from API calls used by AccountViewModel::changeRelationship()
The affected API functions are also called from
- ReportViewModel.kt
- SearchViewModel.kt
- AccountListFragment.kt
- SFragment.java
- TimelineCases.kt
so they have also been updated.
This change requires bridging from Java code to Kotlin `suspend` functions,
by creating wrappers for the `mute` and `block` functions that can be
called from Java and create a coroutine scope.
I've deliberately made this fairly ugly so that it sticks out and can be
removed later.
* Use "Throwable" type and name
* Delete 46.json
Not sure where this came from.
* Emit log messages with the correct tag
* Add another log tag, and lint
* Move viewModelScope.launch in to changeRelationshop()
* Add post editing capability
* Don't try to reprocess already uploaded attachments.
Fixes editing posts with existing media
* Don't mark post edits as modified until editing occurs
* Disable UI for things that can't be edited when editing a post
* Finally convert SFragment to kotlin
* Use api endpoint for fetching status source for editing
* Apply review feedback
* Convert NotificationsFragment to use view binding
* Use requireContext() in places a context is required
Removes a nullness warning.
* Simplify code by using .sublist() and .contains()
Removes a lint warning.
* Add @NonNull annotations to onViewTag and onViewAccount
* Use consistent comment styles
* Support a swipe down to dismiss video
Images can already be dismissed with a swipe, this adds the same
functionality to videos.
- Add a VideoActionsListener interface for the hosting activity to dismiss
the fragment
- Add a gesture listener for swipes
- Dismiss the fragment if a swipe has a greated Y component than X
Fixes https://github.com/tuskyapp/Tusky/issues/2833
* Scale the video view when dragging
Provides identical visual feedback to the same operation on images.
* update to Api 33, fix some deprecations
* fix deprecated serializable/parcelable methods
* ask for notification permission
* fix code formatting
* add back comment in PreferencesActivity
* Add UI for selecting post language
* Apply selected language when sending status
* Save/restore post language with drafts
* Fall back to english if the configured language isn't found in the locale list (no-NB)
* Remove comment about no_NB
* Move language dropdown to top of compose view
* Preserve language when redrafting
* Set default language to target post's language when replying
* Add Tusky license header to new source file
* Tweak language dropdown button width
* initial class setup
* handle events and filters
* handle status state changes
* code formatting
* fix status filtering
* cleanup code a bit
* implement removeAllByAccountId
* move toolbar into fragment, implement menu
* error and load state handling
* fix pull to refresh
* implement reveal button
* use requireContext() instead of context!!
* jump to detailed status
* add ViewThreadViewModelTest
* fix ktlint
* small code improvements (thx charlag)
* add testcase for toggleRevealButton
* add more state change testcases to ViewThreadViewModel