Android Programming Quiz # 10

When creating main Android App project with Android studio, how can we support localization of the Android App?

What does A() function do? private void A() { B(getActivity(), "com.app.package.here"); } public void B(Context context, String packageN) { Intent i = context.getPackageManager().getLaunchIntentForPackage(packageN); if (i == null) { i.addCategory(Intent.CATEGORY_LAUNCHER); context.startActivity(i); } else { try { context.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=" + packageN))); } catch (android.content.ActivityNotFoundException anfe) { context.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://play.google.com/store/apps/details?id=" + packageN))); } } }

An Intent object is a bundle of information and what are the object contains?

What does the following code do? Calendar cal = Calendar.getInstance(); DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd"); cal.add(Calendar.DATE, -1); return dateFormat.format(cal.getTime());

What is the output if following code executed? Values/google_maps_api.xml google_maps_key (key from https://console.developers.google.com/) AndroidManifest.xml <meta-data android:name="com.google.android.geo.API_KEY" android:value="@string/google_maps_key" /> Build.gradle(Module: app) Dependencies{ … Compile ‘com.google.android.gms:play-services:8.4.0’ }

What is the output if following code executed? public int pxToDp(int px) { DisplayMetrics displayMetrics = getContext().getResources().getDisplayMetrics(); int dp = Math.round(px / (displayMetrics.xdpi / DisplayMetrics.DENSITY_DEFAULT)); return dp; } public int dpToPx(int dp) { DisplayMetrics displayMetrics = getContext().getResources().getDisplayMetrics(); int px = Math.round(dp * (displayMetrics.xdpi / DisplayMetrics.DENSITY_DEFAULT)); return px; }

After building an Android project with Android Studio, what is the purpose of generating R.java as follows?  package com.intelstar.venus; public final class R {      public static final class attr {      }      public static final class drawable {          public static final int icon=0x7f020000;      }      public static final class layout {          public static final int main=0x7f030000;      }      public static final class string {          public static final int app_name=0x7f040000;      } }

If you are going to check a network connection with the below source code, what would be required to make it work? public boolean isOnline() { ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo netInfo = cm.getActiveNetworkInfo(); if (netInfo != null && netInfo.isConnectedOrConnecting()) return true; return false; }

What is the output if following code executed? final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null); mainIntent.addCategory(Intent.CATEGORY_LAUNCHER); final List pkgAppsList = getPackageManager().queryIntentActivities(mainIntent, 0); for (Object object : pkgAppsList) { ResolveInfo info = (ResolveInfo) object; File file = new File(info.activityInfo.applicationInfo.publicSourceDir); // … }

Which of the following common design patterns are used in Android?

Following methods called during the life cycle of an android activity are?

Which of the following are possible states of a process?

Android Architecture is consisted of the following components?

Which of the following ADT generates a debug certificate automatically for emulator and device?

How to show option menu using the following source on Samsung phone but cannot see it. How to fix it? try { ViewConfigurationconfig = ViewConfiguration.get(this); Field menuKeyField = ViewConfiguration.class .getDeclaredField("sHasPermanentMenuKey"); if (menuKeyField != null) { menuKeyField.setAccessible(true); menuKeyField.setBoolean(config, false); } } catch (Exception e) { e.printStackTrace(); }

What does mean by the following XML code?

AndroidManifest.xml

<application android:label=»@string/app_name» android:icon=»@drawable/icon»

android:name=»com.intel.starApp»> … ….

<meta-data android:name=»DATABASE» android:value=» example.db»>

<meta-data android:name=»VERSION» android:value=»2″>

<meta-data android:name=»QUERY_LOG» android:value=»true»>

…

</meta-data></meta-data></meta-data>

What does the following code output? public class XYZ extends AsyncTask { @Override protected String doInBackground(String... params) { PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); final WakeLockwl = pm.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK |PowerManager.ACQUIRE_CAUSES_WAKEUP |PowerManager.ON_AFTER_RELEASE, ""); wl.acquire(); return "Executed"; } @Override protected void onPostExecute(String result) {} }

Which of the following data types does AIDL support?

The 'showAsAction' attribute of in a menu resource file can have which of the following values? Check all that apply.

Which file contains information about the app?

Which statement correctly assigns the id to textView element in layout file?

AndroidMainfest.xml file contains the following essential information about your app: (choose all that apply)

The strings.xml has a _________ element, which contains one or more elements.

A layout can retrieve the value of the String named 'stringmessage' using `____`.

The best practice is to put string values in _________ file.

Buttons and text views both inherit from the same Android class named _____.

If the intent has extra integer information passed to it with a name of "message", we can retrieve that information using which of the following?

When publishing updates to an app on the Google Play Store, which of the following are true?

Which of the following correctly adds a string array resource to strings.xml?