In class-based programming, downcasting or type refinement is the act of casting a reference of a base class to one of its derived classes.
Description of Downcast 2.9.55. Downcast, the popular iOS podcast app is now available for OS X! Download, play and sync. your favorite podcasts with an intuitive interface built specifically for podcasts. Subscription Features. Subscription Features. Search, subscribe to and download audio and video podcasts; Manually subscribe to podcasts. Adobe illustrator cc 2018 22 0 for mac free download. Workaround - Temporarily enable airplane mode and open Downcast. Fixed in v2.9.10; Manually sorted playlist continuous play issue. Episodes play in the wrong order after reordering. Fixed in v2.9.10; Mac. Custom artwork not used when a podcast's feed has no usable image url in it.
In many programming languages, it is possible to check through type introspection to determine whether the type of the referenced object is indeed the one being cast to or a derived type of it, and thus issue an error if it is not the case.
دانلود برنامه Downcast 2.9.32 برای مک حجم: ۲۹,۱۲ مگابایت تاریخ انتشار: ۲۵ اردیبهشت ۱۳۹۷. Many downloads like Downcast 2.9.39 Macos may also include a crack, serial number, unlock code, cd key or keygen (key generator). If this is the case it is usually found in the full download archive itself.
In other words, when a variable of the base class (parent class) has a value of the derived class (child class), downcasting is possible.
Examples[edit]
Java[edit]
C++[edit]
Uses[edit]
Callpad : make phone calls 1 2 3. Downcasting is useful when the type of the value referenced by the Parent variable is known and often is used when passing a value as a parameter. In the below example, the method objectToString takes an Object parameter which is assumed to be of type String.
In this approach, downcasting prevents the compiler from detecting a possible error and instead causes a run-time error.Downcasting myObject to String ('(String)myObject') was not possible at compile time because there are times that myObject is String type, so only at run time can we figure out whether the parameter passed in is logical. While we could also convert myObject to a compile-time String using the universal java.lang.Object.toString(), this would risk calling the default implementation of toString() where it was unhelpful or insecure, and exception handling could not prevent this.
In C++, run-time type checking is implemented through dynamic_cast. Compile-time downcasting is implemented by static_cast, but this operation performs no type check. If it is used improperly, it could produce undefined behavior.
Criticism[edit]
Some languages, such as OCaml, disallow downcasting altogether.[1]
A popular example of a badly considered design is containers of top types,[citation needed] like the Java containers before Java generics were introduced, which requires downcasting of the contained objects so that they can be used again.
See also[edit]
References[edit]
- ^Vouillon, Jérôme; Rémy, Didier; Garrigue, Jacques (September 12, 2013). 'Objects in OCaml'. The OCaml system release 4.01 : Documentation and user's manual.
External links[edit]
Downcast 2 9 36 =
- Downcasting is a Code Smell by Jeremy D. Miller
- A downcasting tragedy by Jimmy Bogard
- Prefer polymorphism over instanceof and downcasting by Bill Venners
- Downcasting in C# by Scott Lysle
- Upcasting, downcasting by Sinipull
Currently Known Issues
iOSv2.9.42 Microsoft word no longer working on mac.
- Some users still experiencing frequent crashing. Please see this help article: Tips to resolve frequent crashing
- Now playing info occasionally stops updating. This isn't new and only affects some users, looking into a long term solution. Killing and restarting the app will fix the issue temporarily.
- Tapping Downcast's icon on the iPadOS dock doesn't bring the app to the foreground. This is almost certainly an iPadOS bug, but I'm looking into it.
- iOS 13 - Dark background in navigation bar after dismissing the player view while in light mode. This appears to be an iOS bug. To work around it, just rotate your device to landscape and back.
v2.9.34
- Unable to play downloaded episodes that use .mpga extension - Fixed in v2.9.35
- Playlist time remaining randomly incorrect - Fixed in v2.9.35
v2.9.33
- Lingering crashes - Improved in v2.9.34
- Playback freezes after disconnecting from Chromecast - Fixed in v2.9.34
- Playback freezes near end of BBC podcasts - Fixed in v2.9.34
- This was caused by an encoding error on the publisher's end causing playback to stop within a few seconds of the end of each episode. Audio will still stop at this point but playback will no longer become stuck. Only the publisher can correct the root cause of episodes ending early. This seems to have been corrected in more recent episodes.
- Feeds could refresh while not on WiFi even when set to only refresh over WiFi. Fixed in v2.9.34
v2.9.32
- Gradually decreasing performance and frequent crashes - Fixed (for real) in v2.9.33
- Unable to import media files from iOS Media Library - Fixed in v2.9.33
v2.9.31
- Frequent crashes for some - Fixed in v2.9.32
- Duplicate rows in download queue after rearranging - Fixed in v2.9.32
- Random order of downloads in download queue after adding multiple episodes to the queue simultaneously - Fixed in v2.9.32
- Deleting downloads doesn't update the corresponding podcast's episode counts - Fixed in v2.9.32
- watchOS - Skip buttons don't show correct time intervals and don't change icons based on the Remote Media Skip setting - Fixed in v2.9.32
v2.9.30
- Video playback broken, shows blank screen.
- Fixed in v2.9.31
- Video playback broken, shows blank screen.
v2.9.23
- HomePod AirPlay issues
- This isn't likely a problem with Downcast. HomePod is treated just like any other AirPlay device or external audio route. There haven't been any similar reports of AirPlay troubles with other devices, so this feels like a HomePod issue or the combination of HomePod and certain WiFi networks.
- Should be fixed or significantly improved in v2.9.30
- Issues manually reordering playlists.
- This seems to mostly be an issue while feeds are being refreshed. For now, please try to avoid doing this in the middle of a feed refresh.
- Should be resolved in v2.9.30
- HomePod AirPlay issues
v2.9.21
- Background crashing issues - Fixed in beta
- Now playing information may stop updating - Fixed in beta
- HTTP response caching issue - Fixed in beta
- 'Delete All' not working correctonly iPad - Fixed in beta
- Display of total time for playlists that only include played episodes not showing up - Fixed in beta
- Badge count may become out of sync - Fixed in beta
- Occasional layout issue on playlists - Fixed in beta
- Long press menu for episodes doesn't work for some episode rows - Fixed in beta
v2.9.20 Disk utility format for mac.
- iPhone X - Not autohiding home bar during videos
- Playlist Episode Layout - Most users like the extra detail. If you don't, a new feature is on the way that will let you select from a few different levels of detail. Beta in a few days.
v2.9.19
- Layout issues on iPhone X
- 'Queued for download' label misaligned on playlists & downloads list
- Group row on podcasts list doesn't stretch to fill screen in landscape
- Some variable bitrate episodes terminate early
v2.9.16
- iCloud Syncing - Cannot enable iCloud Syncing options under certain conditions.
- Fixed in v2.9.18 (Waiting for review)
- iCloud Syncing - Cannot enable iCloud Syncing options under certain conditions.
v2.9.14
- General UI sluggishness - Mostly affects old devices
- Solution in the next major update (3.x)
- iOS 10 Beta 2 issues
- Frequent crashes - Appears to be an iOS bug, hoping this will be resolved by the next iOS beta.
- Pausing while connected to Bluetooth devices on iOS 10 beta 2 - Appears to be an iOS bug, hoping this will be resolved by the next iOS beta.
- iOS 10+
- Table row section header indentation is missing
- Fixed in next release (2.9.16)
- General UI sluggishness - Mostly affects old devices
v2.9.13
- Can't download/stream directly from search results
- Workaround - Subscribe to the podcast first, then you'll be able to download or stream individual episodes.
- Fixed in v2.9.14 (Fix available in latest beta)
- Episode counts are not always in sync on podcast & playlist rows
- Fixed in v2.9.14 (Fix available in latest beta)
- Downloaded episodes sometimes converted to streaming
- Fixed in v2.9.14 (Fix available in latest beta)
- Videos sometimes don't start by tapping the episode
- Workaround - On an iPad, tap the play button, then choose video. On an iPhone, tap any other video, dismiss the player, then tap the desired video episode again.
- Fixed in v2.9.14 (Fix available in latest beta)
- Can't download/stream directly from search results
v2.9.12
- Some users experiencing a startup crash
- Fixed in v2.9.13
- Player view artwork isn't visible when zoomed
- Fixed in v2.9.13
- Battery drain
- Fixed in v2.9.13
- Watch app crash when tapping the Player button
- Fixed in v2.9.13
- iCloud syncing inconsistencies
- Much improved in v2.9.13
- Some users experiencing a startup crash
v2.9.11
- Continuous play background issue when playing imported episodes
- Fixed in v2.9.12
- CarPlay - Lists can become out of sync with the actual datasource they represent and certain models will occasionally open to an empty first list.
- Fixed in v2.9.12
- Continuous play background issue when playing imported episodes
v2.9.9
- Potential crash loop after starting playback of a streamed episode with an invalid media file URL
- Workaround - Temporarily enable airplane mode and start Downcast.
- Fixed in v2.9.10
- Occasional issue where episodes will be stuck with a preparing notice
- Workaround - Back out of the player and tap the episode to restart it
- Chromecast pausing after 3 minutes when Downcast is in the background
- Workaround - Keep Downcast in the foreground
- Fixed in v2.9.10
- Potential crash loop if loading an episode with an invalid URL.
- Workaround - Temporarily enable airplane mode and open Downcast.
- Fixed in v2.9.10
- Manually sorted playlist continuous play issue. Episodes play in the wrong order after reordering.
- Fixed in v2.9.10
- Potential crash loop after starting playback of a streamed episode with an invalid media file URL
Downcast 2 9 36 Cm
v2.9.32
- Custom artwork not used when a podcast's feed has no usable image url in it. - Fixed in v2.9.33
World clock 1 3 3 download free. v2.9.30
- Machine sleeping/display dimming prevention not working correctly - Fixed in v2.9.32
v2.9.23
- Continuous play broken when starting playback from context menu - Fixed in v2.9.30
v2.9.21
- Continuous play not updating when changing preference for a playlist -Fixed in beta
v2.9.16
- iCloud Syncing - Cannot enable iCloud Syncing options under certain conditions.
- Fixed in v2.9.18 (Waiting for review)
- iCloud Syncing - Cannot enable iCloud Syncing options under certain conditions.
v2.9.14
- Startup crash for some users with global shortcuts setup
- Workaround - Reset your preferences
- Fixed in 2.9.15 (Submitted for review)
- Startup crash for some users with global shortcuts setup
How to win at the casino every time. v2.9.13
- Issues downloading artwork sometimes
- Fixed in v2.9.14
- Downloaded episodes sometimes converted to streaming
- Fixed in v2.9.14
- Issues downloading artwork sometimes
v2.9.12
- Some users experiencing a startup crash
- Fixed in v2.9.13
- Occasional error message when moving to the next episode
- Fixed in v2.9.13
- iCloud syncing inconsistencies
- Much improved in v2.9.13
- Some users experiencing a startup crash
v2.9.10
- A handful of feeds will fail to refresh due to the mime types they return
- Fixed in 2.9.11
- Issue for some users when importing OPML
- Fixed in 2.9.11
- Issue for some users with continuous play. Receiving an error message about invalid media types.
- Fixed in 2.9.11
- A handful of feeds will fail to refresh due to the mime types they return
v2.9.9
- Deadlock when starting Downcast following crash.
- Workaround - Reset Downcast's preferences: How-to
- Fixed in 2.9.10
- Crash when importing OPML
- Fixed in 2.9.10
- Deadlock when starting Downcast following crash.
