Android – Internet access from android emulator slow or unstable

androidandroid-emulator

I have enabled permissions for internet access, there are no proxies to deal with. I find that though most of the time i can access the net from the browser in the emulator or from my application the access is very slow though I have high speed broadband connection.

My question is this – is there a setting in the emulator that is meant to simulate the speed of the internet connection and by default set to a lower value? if yes how do i change it. if not why is the connection slow in the emulator.

Another problem is that this connection breaks often and I get page not found exception from both my application and the browser in the emulator. this becomes ok once I restart he emulator.

Thanks for any help.

Best Answer

There is a setting to delay & throttle network I/O on the emulator but it defaults to full speed.

The problem is probably somewhere else since there is AFAIK no GUI / keyboard shortcut to trigger that delay and you would need to start the emulator from command line & specify these options.

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Android – How to stop EditText from gaining focus at Activity startup in Android

Excellent answers from Luc and Mark. However, a good code sample is missing. Adding the tags android:focusableInTouchMode="true" and android:focusable="true" to the parent layout (e.g. LinearLayout or ConstraintLayout) like in the following example, will fix the problem.

<!-- Dummy item to prevent AutoCompleteTextView from receiving focus -->
<LinearLayout
    android:focusable="true" 
    android:focusableInTouchMode="true"
    android:layout_width="0px" 
    android:layout_height="0px"/>

<!-- :nextFocusUp and :nextFocusLeft have been set to the id of this component
to prevent the dummy from receiving focus again -->
<AutoCompleteTextView android:id="@+id/autotext"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content"
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    android:nextFocusLeft="@id/autotext"/>

Java – How to check internet access on Android? InetAddress never times out

If the device is in airplane mode (or presumably in other situations where there's no available network), cm.getActiveNetworkInfo() will be null, so you need to add a null check.

Modified (Eddie's solution) below:

public boolean isOnline() {
    ConnectivityManager cm =
        (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo netInfo = cm.getActiveNetworkInfo();
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Also add the following permission to the AndroidManifest.xml:

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

One other small point, if you absolutely need a network connection at the given point in time, then it might be better to use netInfo.isConnected() rather than netInfo.isConnectedOrConnecting. I guess this is up to the individual use-case however.

Best Answer

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