The accessibility menu found in the Android settings is little known, but with very useful options in certain cases. Given the name one might think that it is functionality only for people with disabilities, but they can actually be useful to anyone.
The accessibility settings in Android, very similar to those of an iPhone are found under the Settings menu, scrolling down, to the Accessibility menu.
1) The most useful function that can be found is that of Zoom on Android .
It is therefore necessary to enable the magnification gestures to be able to zoom in on any screen or application.
Simply touch the screen three times to zoom in and three more times to zoom out.
From the zoom you can drag your finger to explore the different parts of the screen.
With this little trick it is possible to enlarge images in apps such as Instagram, for example, where you cannot zoom.
2) End a call with the off button
When the phone rings and cannot be answered, just press the On Off button to close it immediately and stop the phone from ringing.
Of course, it remains possible to press the volume down button to quickly remove the ringtone.
The feature is also useful for ending a call after speaking.
Just be careful not to hold for too long otherwise the phone will turn off.
On Samsung Galaxy you can answer using the Home button and end the call with the power button.
3) Turn books into audio books
In the accessibility options you can activate the speech synthesis engine so that, in some applications, you can listen to the reading of the text by voice.
For example, if you buy and download books from the Google Play Books application, you can go to the settings of the Play Book to activate the automatic reading of the book by voice.
You can also activate the " high quality voice " for a less robotic sound.
4) Enlarge the font
If the font size of the device is not large enough, you can activate the large text making everything easier for those who see it to read.
5) Show quick options link allows you to configure the options accessible by holding down the power button (on some models only).
6) Baby Monitor (on Samsung Galaxy S5)
The Samsung S5 can recognize the cry of an infant or child by sending an alert to the smartwatch, the Samsung Galaxy Gear.
7) Enable and disable accessibility settings
If you want to use these options only at certain times, a simple shortcut allows you to quickly enable / disable them.
The accessibility link can be activated either by pressing and holding the power button or by touching and holding the screen with two fingers.
Activation from the power button is better not to use it because you can turn off the phone.
In the accessibility options there are also specific functions for the disabled, such as the Talkback to have voice instructions of each item on Android, which are not to be used for those who do not need it.
Note also that the Samsung Galaxy have many more accessibility options than the Nexus and smartphones with Android stock and on this page there is the complete list.
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