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Tuesday, October 11, 2016

Code Snippet SD Cards Network check

In many occassions, we may find a need to check for online condition and download files to our sd card.

PFB the code to check for network availability,

public boolean isNetworkAvailable() {

ConnectivityManager cm =

(ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);

NetworkInfo netInfo = cm.getActiveNetworkInfo();

if (netInfo != null && netInfo.isConnectedOrConnecting()) {

return true;

}

return false;

}

PFB the code for SD Card mount check,

private boolean isSDCardMounted() {

String sdCardStatus = android.os.Environment.getExternalStorageState();

return sdCardStatus.equals(android.os.Environment.MEDIA_MOUNTED);

}

PFB the code that returns available space in SD Card,

public int getFreeExtMemory()

{

StatFs statFs = new StatFs(Environment.getExternalStorageDirectory().getAbsolutePath());

int free = ((statFs.getAvailableBlocks() * statFs.getBlockSize()) / 1024);

Log.i("AppInstallChecker", "Available Space : " + free + " KB, Required Space : "+APPSIZE_KB+" KB");

return free;

}

Note : The methods getAvailableBlocks() & getBlockSize() from the above method/snippet is deprecated after api 18, so put a check if needed.

References :

http://stackoverflow.com/questions/5474089/how-to-check-currently-internet-connection-is-available-or-not-in-android

http://stackoverflow.com/questions/1560788/how-to-check-internet-access-on-android-inetaddress-never-timeouts

http://stackoverflow.com/questions/7429228/check-whether-the-sd-card-is-available-or-not-programatically

http://stackoverflow.com/questions/3394765/how-to-check-available-space-on-android-device-on-mini-sd-card

Available link for download