I want to make an app which automatically puts the the phone to silent mode when the user enters certain areas (such as the academic block, library etc) in our university. I tried to search how to do this but was not able to find anything useful.
Can anyone please tell me how to this?
You can use Geofencing technique for detect the particular location(on the basis of latitude and longitude). This tutorial will help you to understand and implement the working of Geofencing. After detect the location you can silent the mobile phone programmatically.
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Did anyone get an idea on how to detect when a device powers on in React Native?
Basically, I am trying to perform some operations when the phone power on but can't find any existing examples online. I would appreciate any help on how to get this done.
I guess you could use a react-native-autostart packets. like this one.
It asks the user to enable the phone to automatically start the app on power on.
Might not fully answer your demand, but it's a user-friendly ways to do it, this way they'll know what's happening.
Im trying to implement a feature that I've seen an few apps, I think for both Android and iOS.. They are calling a function to perform on double knock (tap on the phone) when the app is close and or the screen is locked.. the exact action they were doing is to talk to a BLE device and turn it on/off by knocking on the phone when it is in their pocket.. any idea on how they are doing that?
Im working on Android part of this project. iOS is also having the same issue figuring out the solution.
Thanks.
Kindly follow the Following link, it may helpful.
https://www.android-examples.com/detect-double-tap-click-on-screen-in-android-programmatically/
I'm trying to provide certain functionalities for an android phone that could help people in times of emergencies. (These functionalities are dependent on the phone's sensors.) The only/main approach to achieve this seems to be that of developing an app (and I am currently in the process of developing one). But, what concerns me is that the number of people using an application specifically for emergency purposes is quite low. Even if they do install, when "Insufficient Memory" pops up, an emergency app is very likely to be booted out of the phone.
Are there other ways of providing the functionalities/features of an emergency app, without the users having to explicitly install the app? Or should I just stick with the app?
Certain OEMs provide emergency features as part of their settings. Like for example, in a Samsung phone you can toggle to enable the "Send SOS messages", and then, in case of an emergency, press the power button thrice. In what way could I achieve the same?
Any help would be much appreciated...
Thanks in advance!
Without a proper application installed in user device, you cannot provide the functionality you want.
OEM's also have their applications build and packaged with the system image. If you want it, you need to be in contact with them to include your application in new devices.
I m going to explain simply what I want to do, and I will appreciate for your recommendation. I want to put a small gps sticker on my kid and develop an app in order to track him in real time, if he is going to school or not.
Is there any gps device (sticker) like that, if so can this device send its position simultaneously to my app.
Is there any tutorial that can help me to develop an app like this
There are GPS devices available in market for spying. You don't have to develop an app as They will also provide an app. checkout on of the link
http://www.cheatersspyshop.com/gps-trackers.html
or simply search spy GPS on google you will find a list of devices.
We are developing a medical android app for a hospital. However, the client asked if there is a way to prevent the users (nurses) from being able to use other functionality of the android phones except for the app we will give him. Is this is possible at all?
Thanx
Aside from rolling your own ROM, you could make your app the home screen and capture all button presses etc, hide the notification bar and generally block the rest of the device's features.
However, this would be an Android anti pattern, and I would recommend against it. Personally, I'd never work for anyone who tries to impose such strict limits on what I do.