mFile = context.getFilesDir().getAbsoluteFile();
mDisplayMetrics = context.getResources().getDisplayMetrics();
connMan = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
final double x = Math.pow(mDisplayMetrics.widthPixels / mDisplayMetrics.xdpi, 2);
final double y = Math.pow(mDisplayMetrics.heightPixels / mDisplayMetrics.ydpi, 2);
mScreenInches = Math.sqrt(x + y);

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);

    // Checks the orientation of the screen
    if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
        Toast.makeText(this, "landscape", Toast.LENGTH_SHORT).show();
    } else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){
        Toast.makeText(this, "portrait", Toast.LENGTH_SHORT).show();
    }
}