IOS – What functionality of iOS can be accessed from the lock screen

iosscreen-lock

I know that in iOS, several parts of the iDevice's functionality can be accessed from the lock screen. This is useful when you don't want to fumble with a password.

But now I'm starting to wonder: what else can be accessed from the lock screen? I know these:

Three-home-button tap to invert screen (when Universal Access is enabled)
Double tap to play music

What else can be accessed from the iOS lock screen?

EDIT:

As Daniel L mentioned,

"It shouldn't produce a bunch of partial answers; a good answer will
include a canonical listing (with sources) of what can be accessed
from the iOS lock screen. There is a right answer to this question."

Please, make your answer a canonical listing (with sources) of what can be accessed from the iOS lock screen.

Best Answer

I'm including the ones mentioned in your answer in the name of having a complete listing in one place.

Toggle music controls (Play/Pause, Previous, Next, Volume) by double tapping the home button.
Take pictures and videos by sliding the camera button.
Invoke accessibility features by triple clicking the home button. Configurable in Settings-> General-> Accessibility-> Triple Click Home. You can configure toggling VoiceOver, toggling White on Black, toggling Zoom, or asking which to do.
Make phone calls by tapping the Emergency Call button and dialing a number. iPhones only.
View snippets of emails, text messages, and other notifications by looking at their notification preview. Configurable in Settings-> Notifications-> App.
Activate Siri to make calls, send text messages, send emails, get directions, check calendars, etc. by holding down the home button. Configurable in Settings-> General-> Passcode Lock. iPhone 4S only.
Take a screenshot by pressing the home button and sleep/wake button at the same time.
Power the device off by holding down the sleep/wake button.

Related Solutions

IOS – How to extend the lock screen timeout in iOS

Without jailbreaking your iPhone there Is no option to change that.

IOS – Understand iOS Low Battery logs

Your question is a great excuse to update and expand my previous answer on interpreting these diagnostic logs.

The partial charge field is a simple binary field. A zero means you didn't plug in your phone and these logs document how much usage you got out of a full charge. A one value means that you did plug your phone in after the last full charge and that the readings document more than one full charge - perhaps the phone was working for weeks and kept getting plugged in before finally running out of power.

The log only gets written when the device literally shuts itself off after all of the power warnings.

Voltage documents the voltage of the battery when the device shuts itself off. There usually is still some charge left to power the display briefly and show you that you need to plug it in. Eventually the voltage will decay so low that nothing will run until plugged in again.

Capacity Documents what the power management chip thinks should be left in the battery at the point the log is written. I've never seen a device where this isn't zero.

Here's one of the logs I've collected on my iPhone six:

Hardware Model: N61AP
Awake Time: 07:48:22 (28101)
Standby Time: 11:30:25 (41425)
Partial Charge: 0
Capacity: 0
Voltage: 3409 mV

EDIT:

Best Answer

Related Solutions

IOS – How to extend the lock screen timeout in iOS

IOS – Understand iOS Low Battery logs

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