Android Utililty Methods Context Check

List of utility methods to do Context Check

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Description

The list of methods to do Context Check are organized into topic(s).

Method

booleanisExisting(Context context, Uri uri, String selection, String[] args)
Determine whether or not a give URI has an item matching the specified selected and arguments. 
Cursor cursor = null;
try {
    cursor = context.getContentResolver().query(uri, null,
            selection, args, null);
    return cursor.getCount() > 0;
} finally {
    if (cursor != null)
        cursor.close();
...
booleanisFileExist(Context ctx, String filename)
is File Exist 
File rootDir = ctx.getFilesDir();
if (rootDir.exists()) {
    File file = new File(rootDir, filename);
    return file.exists();
return false;
booleanisFree(Context context)
is Free 
return context.getApplicationContext().getPackageName()
        .equals("com.pedroedrasousa.wobblybubbleslite");
booleanisGPRSAvailable(Context context)
public static boolean isGPRSAvailable(Context context)

this will check whether GPRS is available or not 
ConnectivityManager connect = (ConnectivityManager) context
        .getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfoMobile = connect
        .getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
if (netInfoMobile.isConnected())
    return true;
else
    return false;
...
booleanisGoogleAccountPresent(Context ctx)
is Google Account Present 
AccountManager am = AccountManager.get(ctx);
Account[] accounts = am.getAccountsByType("com.google");
if (accounts == null || accounts.length == 0) {
    return false;
} else {
    return true;
booleanisGpsEnabled(Context context)
is Gps Enabled 
LocationManager lm = (LocationManager) context
        .getSystemService(Context.LOCATION_SERVICE);
return lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
booleanisHeadsetPluggedIn(Context context)
is Headset Plugged In 
Intent headsetIntent = context.registerReceiver(null,
        new IntentFilter(Intent.ACTION_HEADSET_PLUG));
if (headsetIntent != null) {
    Bundle extraData = headsetIntent.getExtras();
    return !(extraData.getInt(EXTRA_HEADSET_STATE_KEY) == 0);
return false;
booleanisInstalledThroughPlayStore(final Context context)
Check whether the application is installed through the Play Store. 
final PackageManager packageManager = context.getPackageManager();
final String packageInstallerName = packageManager
        .getInstallerPackageName(getPackageName(context));
if ("com.android.vending".equals(packageInstallerName)) {
    return true;
return false;
booleanisLandscape(Context context)
is Landscape 
Display display = ((WindowManager) context
        .getSystemService(Context.WINDOW_SERVICE))
        .getDefaultDisplay();
if (display.getWidth() > display.getHeight()) {
    return true;
} else {
    return false;
booleanisLandscape(final Context context)
Used to determine if the device is currently in landscape mode 
final int orientation = context.getResources().getConfiguration().orientation;
return orientation == Configuration.ORIENTATION_LANDSCAPE;