Android – No sound with Android Studio emulator

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I cannot get sound working in the emulator in Android Studio. It's not my code as it's a very simple example program to demonstrate the MediaPlayer that works fine on an actual device.

On the emulator in Android Studio there is absolutely no sound, not even system sounds. Is this an Android/Android Studio bug? Or could it be the configuration of my particular system? Windows 10 issue?

Anyone else having this problem? Any solution other than using a real device or Genymotion (which I've never used) ?? Thanks.

EDIT: The only way I can get the emulator in Android Studio to start with audio is to launch it from the terminal with both the "-no-snapshot" and "-no-snapshot-load" options. And this only works about 80% of the time. It has something to do with snapshots. There are a couple of old questions on this but no solutions.

Best Answer

Try to open your Oracle VM Virtualbox. Go to Settings -> Audio -> Host Audio Driver and change it to PulseAudio. Let me know if it helps.

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Android – How to close/hide the Android soft keyboard programmatically

You can force Android to hide the virtual keyboard using the InputMethodManager, calling hideSoftInputFromWindow, passing in the token of the window containing your focused view.

// Check if no view has focus:
View view = this.getCurrentFocus();
if (view != null) {  
    InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
    imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
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This will force the keyboard to be hidden in all situations. In some cases, you will want to pass in InputMethodManager.HIDE_IMPLICIT_ONLY as the second parameter to ensure you only hide the keyboard when the user didn't explicitly force it to appear (by holding down the menu).

Note: If you want to do this in Kotlin, use: context?.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager

Kotlin Syntax

// Only runs if there is a view that is currently focused
this.currentFocus?.let { view ->
    val imm = getSystemService(Context.INPUT_METHOD_SERVICE) as? InputMethodManager
    imm?.hideSoftInputFromWindow(view.windowToken, 0)
}

Android – unique Android device ID

Settings.Secure#ANDROID_ID returns the Android ID as an unique for each user 64-bit hex string.

import android.provider.Settings.Secure;

private String android_id = Secure.getString(getContext().getContentResolver(),
                                                        Secure.ANDROID_ID);

Also read Best practices for unique identifiers: https://developer.android.com/training/articles/user-data-ids

Best Answer

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Android – How to close/hide the Android soft keyboard programmatically

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