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

booleanisAppInstalled(Context context)
is App Installed 
PackageManager manager = context.getPackageManager();
try {
    manager.getPackageInfo(PACKAGE_NAME, 0);
    return true;
} catch (NameNotFoundException e) {
    return false;
booleanisAppInstalled(Context context, String uri)
Check if package installed 
PackageManager pm = context.getPackageManager();
boolean appInstalled;
try {
    assert pm != null;
    pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES);
    appInstalled = true;
} catch (PackageManager.NameNotFoundException e) {
    appInstalled = false;
...
booleanisAppOnForeground(Context context)
is App On Foreground 
ActivityManager activityManager = (ActivityManager) context
        .getSystemService(Context.ACTIVITY_SERVICE);
List<RunningAppProcessInfo> appProcesses = activityManager
        .getRunningAppProcesses();
if (appProcesses == null)
    return false;
for (RunningAppProcessInfo appProcess : appProcesses) {
    if (appProcess.processName.equals(context.getPackageName())
...
booleanisApplicationBroughtToBackground( final Context context)
Checks if the application is in the background (i.e behind another application's Activity). 
if (context
        .checkCallingOrSelfPermission(Manifest.permission.GET_TASKS) == PackageManager.PERMISSION_DENIED)
    return false;
ActivityManager am = (ActivityManager) context
        .getSystemService(Context.ACTIVITY_SERVICE);
List<RunningTaskInfo> tasks = am.getRunningTasks(1);
if (!tasks.isEmpty()) {
    ComponentName topActivity = tasks.get(0).topActivity;
...
booleanisApplicationBroughtToBackground( final Context context)
Checks if the application is in the background (i.e behind another application's Activity). 
ActivityManager am = (ActivityManager) context
        .getSystemService(Context.ACTIVITY_SERVICE);
List<RunningTaskInfo> tasks = am.getRunningTasks(1);
if (!tasks.isEmpty()) {
    ComponentName topActivity = tasks.get(0).topActivity;
    if (!topActivity.getPackageName().equals(
            context.getPackageName())) {
        return true;
...
booleanisCallable(Context context, String url)
is Callable 
String mimeTypeExtension = URLConnection
        .guessContentTypeFromName(url);
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.parse(url), mimeTypeExtension);
List<ResolveInfo> list = context.getPackageManager()
        .queryIntentActivities(intent,
                PackageManager.MATCH_DEFAULT_ONLY);
return list.size() > 0;
...
booleanisConnected(Context connext)
is Connected 
ConnectivityManager connectivityManager = (ConnectivityManager) connext
        .getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo info = connectivityManager.getActiveNetworkInfo();
if (info != null && info.isConnected()) {
    return true;
return false;
booleanisConnected(Context context)
is Connected 
ConnectivityManager conn = (ConnectivityManager) context
        .getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo info = conn.getActiveNetworkInfo();
return (info != null && info.isConnected());
booleanisDebugCertificateCheck(final Context context)
is Debug Certificate Check 
final X500Principal DEBUG_CERTIFICATE_DN = new X500Principal(
        "CN=Android Debug,O=Android,C=US");
boolean debuggable = false;
try {
    Signature[] signatures = getSignatures(context);
    for (int i = 0; i < signatures.length; i++) {
        X509Certificate certificate = generateX509CertificateFromSignature(signatures[i]);
        debuggable = certificate.getSubjectX500Principal().equals(
...
booleanisDebuggable(final Context context, final boolean includeDefaultDebugCertificateCheck)
Check whether the application is debuggable. 
boolean debuggable = (0 != (context.getApplicationInfo().flags &= ApplicationInfo.FLAG_DEBUGGABLE));
if (!debuggable && includeDefaultDebugCertificateCheck) {
    debuggable = isDebugCertificateCheck(context);
return debuggable;