Android Utililty Methods Context Check

List of utility methods to do Context Check

  1. HOME
  2. Android
  3. C
  4. Context Check

Description

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

Method

booleanisSensAppInstalled(Context context)
is Sens App Installed 
try {
    context.getPackageManager().getApplicationInfo(
            "org.sensapp.android.sensappdroid", 0);
} catch (PackageManager.NameNotFoundException e) {
    return false;
return true;
booleanisServiceRunning(Context ctx, String className)
is Service Running 
boolean isRunning = false;
ActivityManager activityManager = (ActivityManager) ctx
        .getSystemService(Context.ACTIVITY_SERVICE);
List<RunningServiceInfo> servicesList = activityManager
        .getRunningServices(Integer.MAX_VALUE);
Iterator<RunningServiceInfo> l = servicesList.iterator();
while (l.hasNext()) {
    RunningServiceInfo si = (RunningServiceInfo) l.next();
...
booleanisServiceRunning(Context ctx, String className)
is Service Running 
boolean isRunning = false;
ActivityManager activityManager = (ActivityManager) ctx
        .getSystemService(Context.ACTIVITY_SERVICE);
List<RunningServiceInfo> servicesList = activityManager
        .getRunningServices(Integer.MAX_VALUE);
Iterator<RunningServiceInfo> l = servicesList.iterator();
while (l.hasNext()) {
    RunningServiceInfo si = (RunningServiceInfo) l.next();
...
booleanisSystemApplication(Context context, String packageName)
is System Application 
PackageManager manager = context.getPackageManager();
try {
    PackageInfo packageInfo = manager.getPackageInfo(packageName,
            PackageManager.GET_CONFIGURATIONS);
    if (packageInfo != null
            && (packageInfo.applicationInfo.flags & android.content.pm.ApplicationInfo.FLAG_SYSTEM) != 0) {
        return true;
} catch (Exception e) {
    e.printStackTrace();
return false;
booleanisTablet(Context ctx)
is Tablet 
try {
    DisplayMetrics dm = ctx.getResources().getDisplayMetrics();
    float screenWidth = dm.widthPixels / dm.xdpi;
    float screenHeight = dm.heightPixels / dm.ydpi;
    double size = Math.sqrt(Math.pow(screenWidth, 2)
            + Math.pow(screenHeight, 2));
    return size >= 6;
} catch (Throwable t) {
...
booleanisTablet(final Context context)
Used to determine if the device is a tablet or not 
final int layout = context.getResources().getConfiguration().screenLayout;
return (layout & Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_LARGE;
booleanisThemeInstalled(Context c, String theme)
is Theme Installed 
try {
    c.getPackageManager().getPackageInfo(theme,
            PackageManager.GET_ACTIVITIES);
    return true;
} catch (Exception e) {
    return false;
booleanisUpdateAvailable(Context paramContext, String paramString)
is Update Available 
try {
    HttpURLConnection localHttpURLConnection = (HttpURLConnection) new URL(
            paramString).openConnection();
    long l1 = localHttpURLConnection.getHeaderFieldDate(
            "Last-Modified", System.currentTimeMillis());
    localHttpURLConnection.disconnect();
    long l2 = PreferenceManager.getDefaultSharedPreferences(
            paramContext.getApplicationContext()).getLong(
...
booleanisValidSigningKey(final Context context, final String certificateToCheckAgainst)
Check whether the signing key can be validated. 
try {
    Signature[] signatures = getSignatures(context);
    for (int i = 0; i < signatures.length; i++) {
        X509Certificate certificate = generateX509CertificateFromSignature(signatures[i]);
        String sha1 = getCertificateSHA1(certificate);
        if (!certificateToCheckAgainst.equalsIgnoreCase(sha1)) {
            return false;
} catch (PackageManager.NameNotFoundException e) {
} catch (CertificateException e) {
} catch (NoSuchAlgorithmException e) {
return true;
booleanisVoiceSearchServiceExist(Context context)
is Voice Search Service Exist 
InputMethodManager imm = (InputMethodManager) context
        .getSystemService(Context.INPUT_METHOD_SERVICE);
List<InputMethodInfo> mInputMethodProperties = imm
        .getEnabledInputMethodList();
boolean isVoiceSearchServiceEnabled = false;
for (int i = 0; i < mInputMethodProperties.size(); i++) {
    InputMethodInfo imi = mInputMethodProperties.get(i);
    if (DEBUG)
...