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I am trying to write a program that analyses the analogue audio content of an incoming call on an Android device - i.e. frequency / amplitude.
I have been looking at ways of trying to do this using Android Studio, but can't see anything obvious, any ideas on this would be really appreciated, thanks
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I am writing an app in C++ that in has to lock the device at a specific moment in time, like if the user had pressed the lock button.
I found some java procedures like DevicePolicyManager that do what I want but didn't find anything that I can use in my C++ program. Does anyone know how this functionality can be implemented in C++ (besides the DevicePolicyManager, if there is another way)?
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I’m developing some C++ Android code and I realized that my animations are happening at only 10fps on an actual low end phone.
Has anyone ever seen Choreographer limit the FPS at such a low number?
Also I am using 32bit color and the default is 16bit.
Hypothetically if the cpu were very slow it might, but this is an octacore so I’m doubting that.
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Can APP send device data(e.g. accelerometer gyroscope proximity sensor) to the server in the background?
Yes, it is possible to send data in background. In Android, you need to use a service for that type of application. Here you can find a more complet answer.
But be careful with that. It is not a good practice because running the sensors continuously like that would drain the battery quickly.
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I am looking to write an app that is aware of what music the user is listening to (in any other app). Does the Android SDK allow for this?
I know that MediaPlayer objects are generally used, however they seem to be created within the context of the specific app...
Any ideas?
Thanks
Most music apps will send out metadata about songs/tracks that are playing.
You may want to look at using a BroadcastReceiver
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we can do many things by android sensor. However, can I judge my status, such as moving, motionless.
The simplest way is to use Activity Recognition API http://developer.android.com/training/location/activity-recognition.html .
Or you could read raw data from sensors to recognize patterns. But eventually you'll come the same functionality.