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How to just about survive in Android OSIf purchasing hardware, beware of "Shanzhai" clones: these typically break down after 3 or 4 months. Reputable manufacturers' devices should last considerably longer. Devices advertised as "waterproof" are not necessarily usable in wet weather, and can have overly-sensitive touchscreens even in dry weather. Some devices have optional "magnetic charge cables" to connect to their docking ports, which might increase the life of the device if the Micro-USB port breaks first.
|Before Blackberry 10||No Android support|
|Blackberry 10 (Q10, Passport etc) not upgraded to 10.2||Simple, non-NDK applications can be repackaged for BlackBerry|
|10.2.1||APKs install direct to phone; NDK works; most APIs supported, except for things like taking over the home screen or running a background sound recorder when app is not visible|
|Priv||is Android (in a security-enhanced fork)|
- The "Application Manager" can be told to move some applications to the "SD card" (actually the fake USB disk), and may be able to move more applications if you first connect a cable and do adb -d shell pm set-install-location 2, but moving an application does not usually result in all its data being moved---many applications still keep a lot of data on the more limited "device memory" even when the code is elsewhere.
- On the Galaxy S2, some "device memory" can also be freed by dialling *#9900# for SysDump and selecting "Delete dumpstate/logcat" (repeat every few months).
- Some of these devices can be repartitioned to turn part of the "USB disk" into "device memory" (using, for example, a GNU/Linux box running Heimdall and an appropriate PIT file for the Galaxy), but you'd then need to re-flash the operating system from a download: many are of questionable legitimacy, and it also risks a USB glitch 'bricking' the device, so I cannot recommend this procedure.
Real MicroSD cards (usually SDHC i.e. up to 32GB) are supported by some (not all) devices, and can be used for storage of media but not all applications before Android 6 (which can "adopt" a card for extra "internal" storage instead), but any new card must be tested with
f3read (or equivalent) before use, since counterfeit high-capacity cards are common (e.g. "32G" where only 7.4GiB work reliably, even if the seller describes it as ``genuine'' or ``authorized''). Many counterfeit sellers, when faced with a test report mentioning
h2testw (a proprietary Windows equivalent of F3) issue a refund and tell you to keep the card. Such cards are often usable if repartitioned downwards to their true (smaller) capacity
- on GNU/Linux the easiest way to do this is probably to install
- on a Mac:
- in the Terminal, check with
mountto see which disk number it has,
- unmount it with
- use (e.g.) fdisk -e /dev/disk1 (ignore any "could not open MBR file" errors)
- edit 1 and set true size in 512-byte blocks
- w and q---Disk Utility will likely pop up (launch it yourself if it doesn't)
- select the first partition e.g. disk1s1 (not the partition table itself!) and erase.
- in the Terminal, check with
- Usual disclaimers apply of course: mistakes with partitioning can erase your hard disk; if in doubt, leave it to an expert.
If you don't have time for all this testing, complaining, repartitioning, and repeating until you get a high enough capacity, it's well worth paying the extra few pounds to buy from a reputable high-street chain instead of online (but test it anyway, just in case they too get caught out).
Taming the Home screenSome devices ship with 'widget' software that plays a continuous stream of advertisements from the Home screen, consuming your data allowance and generally being a distraction---especially if you intend to use your device to demonstrate things to others. Sony's "What's New" is one such example and cannot be disabled from Settings/Apps. I was initially able to mitigate this by using Simple Home (which I still recommend: see below), and I suggested refusing to accept OS updates (such as from 4.4 to 5.0) lest they somehow bring back the widget---Android security is basically a lost battle anyway (even Google's own "Nexus" models have ceased to be patched just 3 years after initial release), so you should be aware that anything you store is at risk of compromise no matter what (if the consequences of that are worse than inconvenience, keep it on something that's more secure than Android)---but it turns out there is a way to turn off pre-installed widgets without refusing updates completely, and the instructions that should have been in the box are as follows:
- Unwanted widgets etc can be long-pressed and then dragged to a dustbin which appears (except on the "Amazon Fire" version of Android, where you may be stuck with them but you can at least change the order or drop them on top of each other to hide them in folders);
- on Android 4.x a 'pinch' gesture can be used to remove empty 'panes' (pages) if you'd rather have just a single page (automatic on 5+)
- If the device will be used by a beginner who's unfamiliar with the difference between short and long presses, I suggest not placing tappable icons anywhere near where the dustbin or "create folder" functions appear when they are long pressed;
- The print size might be increaseable in Settings but not by much; doing so will likely reset the layout to default; Simple Home (if available) might be preferable.
- Simple Home
- commercial (paid) application included as standard on some devices that can give larger print than the default home screen. It's possible to customise Simple Home, although it does not seem possible to remove its three "speed dial" slots, so I'd suggest moving these to the top (i.e. furthest from your hands) if you don't make voice calls from this device.
- Hacker's Keyboard
- The only application I could find with a correctly laid out on-screen Dvorak keyboard, although it's still not as good as a physical keyboard (which is sorely lacking from most Android devices). Hacker's Keyboard is Apache-licensed.
- 920 Text Editor (APKs on GitHub, no longer on "Play Store")
- a small GPLd text editor that also tends to appear at the top of SimpleHome's application list. Text editors are always useful: even if you won't be editing, you might at some point need it for converting the clipboard contents to text (so it can be pasted into an application that does not do so itself) or to save something to a file, and 920 can also double as a rudimentary file manager if you don't have one. It's not Emacs though: its syntax highlighting is limited and it's slow with large files. Beware it can crash (for example, at least some versions crash when a Bluetooth keyboard is connected or in low-memory situations), so text that has not been saved is highly vulnerable.
- Speed Software Explorer
- A file manager. If your device shipped with a non-advertising version of File Commander which later updated to one that advertises, or if you were annoyed when ES File Explorer started to promote festive "themes" on its Home screen and gambling games on its Apps screen, then you might prefer this one which was still without advertisements last time I checked. Can also create shortcuts to specific files on the Home screen, provided that Simple Home is not running at the time of shortcut creation.
- StereoMatch "Amazing MP3 Recorder"
- Sound recorder that works in the background and/or with screen off (saving battery), has visual indication of microphone pick-up on the left of the screen, and works with screen readers. Might be useful if you need to record something while without a recording device.
- If you record OGG (MP3 encoding is a paid add-on but OGG is provided), the default settings give about 72 kbps for speech (31M/hr, variable). Its early-version problems are now fixed.
- I used to recommend Triveous Voice Recorder for its visual indicator of microphone pick-up before StereoMatch got one. Like StereoMatch, Triveous can work in the background or with screen off, but I don't know how well Triveous works with screen readers, and StereoMatch makes better use of storage space than Triveous:
- although Triveous can compress to AAC (or M4A in version 5; 128 kbps = 55M/hr, convertible via mplayer -ao pcm:file=output.wav or some installations of Audacity), it also makes an uncompressed WAV of the current track while encoding, so you need to allow space for this and/or keep each track short,
- and the old Version 3 even fails to delete them (for tracks exceeding about 18 minutes depending on hardware)---this was fixed in Version 4, but the device still needs space for the WAV of each track while recording that track, regardless of the "realtime" setting (non-realtime results in an extra encoding step taking about 50% of the recording time). StereoMatch on the other hand can encode without needing space for a separate copy in WAV format as it does so.
- If you do have space for WAV (3.3hr/G) then for distant sources it's (usually) better to just use WAV and re-code it later, but this is no longer an option in version 5 which is M4A-only (but still has the "need to leave room for the WAV as well" limitation that StereoMatch doesn't have).
- There is also a GPL'd recorder called Rehearsal Assistant which was removed from the Store in December 2017. This has a serious bug to be aware of when recording uncompressed (see its SourceForge Bug 4)---on some devices, if you do too much in other apps such as the browser, background recording can be aborted without clearing the red indicator on the notification bar, leaving an incomplete wav file that needs sox --ignore-length to play.
- Triveous and StereoMatch do not have this problem, but they are closed-source, although currently without advertisements apart from suggestions to upgrade to their "Pro" versions which unlock more settings.
- For nearby sounds you could try Rehearsal Assistant's 48 kbps AMR-NB .3gp (loadable in Audacity, mplayer etc) but the quality will be lower.
- iPhone ships with Voice Memos (possibly under Extras); it too works with the display switched off or in the background, and records 64kbit AAC (.m4a). Some other iOS programs output
.aiffiles that might need converting on a Mac
- GPL'd media player with speed control and playlist navigation which is often lacking on manufacturers' preinstalled players. You might however wish to keep the old player installed as well, because MIDI files are not yet supported by all versions of VLC.
- MIT-licensed "podcast" (audio RSS) client with variable-speed playback etc: can simplify download for sites using that format for audio articles
- Recent versions of iOS have a built-in "Podcasts" app with similar functionality, but the "Podcasts" app in iOS 8 and below lacks the option to add your own URL
- JuiceSSH or VX ConnectBot
- VX is Apache-licensed and supports port forwarding (might be needed for desktop SSH), but not password remembering for servers that don't "do" public-key authentication and its landscape mode might need manual configuration; Juice lacks these limitations but the unpaid version can't port-forward. VX also has a built-in file uploader but this doesn't always work, and the
scpcommand available on the local shell doesn't work in all Android versions, but you could use ssh -C user@host 'cat > filename' < filename or ssh user@host 'tar -c directory | xz -9' > downloaded.txz
- If you only have iOS, try Arnaud Mengus's "WebSSH Essential" application (Arnaud was kind enough to add some larger fonts when I beta-tested it).
- OsmAnd (also on iOS)
- GPLv3 offline maps program with searching, routing, bookmarks, and location sharing (recipients do not need the application); can pre-download whole countries or regions for use offline (with optional GPS); maps often include house numbers, shortcuts and bus stops, with optional display of routes (useful in big cities where stop assignments are not always obvious on the map).
- The unpaid binary on Play Store is limited to 7 map downloads (not reset by deleting maps, unless all application data is cleared), but does offer countrywide maps as an alternative to regional ones.
- Camera and microphone permission is used by a route-notetaking plugin I didn't test. Markers are cleared by sliding down the bottom popup.
- Beware of Maps.Me (also on iOS & Apache-licensed): has a smoother display (and marginally better editing facilities) but:
- in May 2017 it shipped with code to place an advertisement under the label when you tap on a building, and the first advertisement I got was for scam "get rich quick" software: I cannot recommend to others a mapping program that might advertise that sort of thing. So ensure "Show offers" is switched off under menu / Settings / Miscellaneous.
- You'll also need to go to the device settings and Apps / Maps.me / Show notifications OFF (on iOS it's in the Notification Centre): in October 2016 developers sent a nag telling users to engage in the objectionable and dangerous custom of "trick or treat" via that mechanism.
- Even with both of these things turned off, it still tells you to join Facebook. Here's why you shouldn't join and how to stop that particular nag.
- From November 2017 they insist all users download a full-world map with points of interest from a touring company called Viator. Some users might find some suggestions mildly offensive (e.g. gun shooting venues) and the extra data takes up space.
ge0.meservice stopped working for non-iOS/Android platforms in 2017 Q3). Bus routes don't seem to have been implemented yet but the locations of stops are still shown (although the labelling in London is not always consistent with that of TfL's journey planner).
- In version 7.4.3 Maps.Me started crashing Simple Home 1.0 on Android 4.4; this can be worked around by ensuring it's not started from the Home screen (if it's there, go to Settings > Display > Customise Home > Change apps and replace Maps.Me with something else), then starting it from the menu and allowing it to update its maps, and then restoring its position on the Home screen (it's only the first start after an update that's affected).
- The older closed-source "MapDroyd" application took less storage space but lacked bus stops, bookmarks and routing, was less responsive and had a less reliable search function. Existing installations should continue to work but cannot download new maps now their server is offline.
- GPS Status & Toolbox (also on iOS; beware advertising)
- Utility that provides (among other things) a way to force the phone to update its ephemeris data to give faster GPS fixes for a few days. Useful because some design flaw made Android's automatic GPS management often insufficient and there's no way to force it in the system's own settings; older Android devices can become noticeably slow at acquiring GPS (if they manage to at all) without this utility. Third-party advertising was added to the unpaid version of this utility, apparently with the January 2018 update.
- Google PDF Viewer
- Does not require you to zoom out before turning pages as some bundled viewers do. Scrolls vertically; default zoom is page width. If you prefer horizontal scrolling with default zoom to full page, try MuPDF (AGPL) which also reads EPUB etc.
- CHM Reader X
- Useful if you sometimes need to consult offline documentation in CHM format; this reader is faster than others when dealing with large files. Closed-source but without advertisements last time I checked. When dealing with framesets, you can show only one frame by editing Android/data
/com.pdagate.chmreader /files/chmReaderState and changing
page:(see text strings near start of chm file to figure out what to set it to), then bookmarking the result. Then use this bookmark whenever you need to go back to the within-frame starting page (as the reader defaults to opening the last page visited).
- Seconds Clock Widget (no longer on Play Store)
- Android versions 4.2 to 4.4 can add widgets to the lock screen; this one shows a seconds count with the time, which is not normally done by default, and is useful if you need to start a conference or something at an exact time and the wall clock is too far away to see.
- Simple Web server suitable for sharing files over WiFi, which can be useful if Bluetooth is too slow or not working. You'll need to switch on "hotspot" functionality (disable mobile data first if you don't want clients using up your quota); the IP and port that clients should browse to is displayed on kWS startup. Some older devices (e.g. WM6) might not be able to connect to the hotspot, even in Open mode, due to subtle protocol changes over the years. Some applications have their own WiFi-sharing functionality but that usually requires the same application to be installed on all devices; a Web server requires only a browser.
- OS Monitor (on Android versions below 7)
- GPL'd monitor of processes, network connections and logs: can be useful when diagnosing other applications with problems (can also look up the locations of servers they're connecting to, etc)
- Fractoid (Dave Byrne, no longer on Play Store)
- GPL'd fractal viewer, in case you ever need to explain the concept (but don't expect it to be as fast as XaoS on a desktop)
- EUMLab Pro Metronome (also on iOS)
- Useful for musicians if someone asks about tempo during a rehearsal and nobody has brought a metronome. This one is currently without advertisements but is closed source. Subdivisions require a paid upgrade.
- Privacy Flashlight Lite (Android 4 and older, no longer on Play Store for the UK)
- No-nonsense torch (with 'widget') for devices that have a camera light. Android 5+ bundles this functionality.
- WangQi's "My Home Button" (no longer on Play Store)
- Useful on older devices with worn-out hardware home buttons. When I last checked, it sometimes had advertising on its Settings screen but mercifully not elsewhere.
- QR Code Reader No Ads
- Reads QR codes with comparatively little 'nonsense'. (Some Android 6+ devices bundle this functionality.)
- K-9 Mail
- Apache-licensed fork of Android's email client with fewer problems (in particular, deleted messages are less likely to reappear on sync just because their flags are different on the server); has dark theme and configurable font sizes (may require restart); can be set to store on SD card, and a default folder can be set (useful when working with ImapFix).
- CamScanner Phone PDF Creator (also on iOS)
- Beware the December 2017 version promotes gambling. Commercial software whose full version might be available without charge via some universities (if you're affiliated with one, this might be worth a check). Applies thresholding and cropping etc to photographs to produce scanned PDF documents; can work offline.
- iOS note: a pre-3.8.2 version of CamScanner was infected by malware due to its developers having accidentally downloaded "XcodeGhost" instead of Xcode.
- Your local transport authority or bus company (if you are a bus user), for example Cambridgeshire's "MyBusTrip" (annoyingly listed under M by SimpleHome; this can be worked around by assigning it a place on the dial-pad) presents the same data as on the bus stop signs, which might be useful if your stop lacks a sign or you're not close enough to see it; some buses are actually tracked while others are just assumed to be in their timetabled locations. See also nextbuses.mobi although I'm not sure if they always use the same data.
- Your bank: they just might have an application that works better than their website (for some tasks), although not all banks test on all versions of Android so don't be surprised if they break it
- Any large marketplace site you sometimes happen to use (again their application might work better than their website for some tasks)
- Any other large organisation(s) you're associated with might have applications to expedite access to their servers and/or reading material, which might be worth checking (especially if they allow offline use)
- Any ``chat'' networks your contacts use (but beware of commercial licenses and data use)
"Wi-Fi Calling" on AndroidAs far as I can tell, "WiFi calling" (the ability to route voice calls and SMS messages to and from your mobile-phone provider via WiFi when the building you're in blocks their signal) is not a "standard" feature of Android, but is provided as an extra by certain manufacturers on certain devices. Therefore there is no specific "minimum Android version" that supplies WiFi calling---you have to check your particular model against a list (e.g. Galaxy S6+, HTC 10+, Huawei P10+, Nexus 5X+/Pixel+, Xperia XZ1, E&OE and may also depend on your phone service provider). H3G (UK) provides an Android 4+ app called "Three inTouch" to carry voice and SMS separately from the phone's built-in dialler, thus reducing the compatibility requirements but only for their own customers (not MVNO customers). If you have an Android device with an unused SIM slot, you could try obtaining an H3G PAYG SIM for it, setting up WiFi calling, and set your other phone to ask its network to divert incoming calls to the H3G number when you are otherwise "unreachable" due to lack of signal---but check how your network bills the diverted calls before trying this.
To deactivate voicemail on Three (UK), as of mid-2018 you can dial
##002# but (1) you must wait 24 hours for the change to take effect and (2) it's automatically reverted after a few days.
All material © Silas S. Brown unless otherwise stated.
Android is a trademark of Google LLC.
Apache is a registered trademark of The Apache Software Foundation.
Bluetooth is a registered trademark held by the Bluetooth Special Interest Group.
Google is probably a trademark of Google LLC.
H3G is a trademark of Hutchison Whampoa Enterprises Limited.
HTC and Touch are trademarks of HTC Corporation.
Huawei is a trademark of Huawei Technologies Co., Ltd registered in China and other countries.
iPhone is a trademark of Apple in some countries.
Linux is the registered trademark of Linus Torvalds in the U.S. and other countries.
Mac is a trademark of Apple Inc.
MP3 is a trademark that was registered in Europe to Hypermedia GmbH Webcasting but I was unable to confirm its current holder.
QR Code is the UK registered trademark of Denso Corporation.
Wi-Fi is a trademark of the Wi-Fi Alliance.
Windows is a registered trademark of Microsoft Corp.
Xperia is a trademark of Sony Ericsson Mobile Communications AB.
Any other trademarks I mentioned without realising are trademarks of their respective holders.