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FLAG_ACTIVITY_NEW_TASK

FLAG_ACTIVITY_CLEAR_TOP.

A compiled visual resource that can used as a backgrounds,banners, icons,splash screen etc.

Using with findViewById we can find view element.

App Widgets are miniature application views that can embedded in other applications (such as the Home screen) and receive periodic updates. These views has referred to as Widgets in the user interface, and you can publish one with an App Widget provider.

AndroidManifest.xml

build.xml

bin/

src/

res/

assets/

Use a dynamic broadcast receiver in the activity, and send a broadcast from the service. Once the dynamic receiver is triggered update UI from that receiver.

Android is customized Linux 3.6 kernel.

Sleep mode mean CPU will be sleeping and it doesn't accept any commands from android device except Radio interface layer and alarm.

Fragment is a piece of activity, if you want to do turn your application 360 degrees, you can do this by fragment.

Using with Bundle, we can pass the data to sub activities.

Bundle bun = new Bundle();        bun.putString("EMAIL", "contacttutorials.com");

Using with intent, we can launch an activity.

Intent intent = new Intent(this, MyTestActivity.class);        startActivity(intent);

JSON,XML bitmap.etc are application resources.You can injected these files to build process and can load them from the code.

It's not truly recommended to change application name after it's deployment, if we change, it will impact on all other internal components.

Android provides a Unique ID to all applications is called as Linux ID,this ID is used to track each application.

Android uses DVM (Dalvik Virtual Machine ) rather using JVM(Java Virtual Machine), if we want, we can get access to .jar file as a library.

WebView is UI component that can display either remote web-pages or static HTML

Android uses Google translator to translate data from one language into another language and placed as a string while development

Sticky Intent is also a type of intent which allows the communication between a function and a service for example,sendStickyBroadcast() is perform the operations after completion of intent also.

Shared Preferences,Internal Storage,External Storage,SQLite Databases and Network Connection

Positive, Neutral, Negative.

InflateException,Surface.OutOfResourceException,SurfaceHolder.BadSurfaceTypeException,and WindowManager.BadTokenException

AlertDialog, ProgressDialog,DatePickerDialog, and TimePickerDialog

We can change bitmap images in nine sections as four corners,four edges and an axis

In The Layout folder, layouts are placed as XML files

Intent filters are filter out the intents.

• Linux Kernel
• Libraries
• Android Framework
• Android applications.

Shared preferences are the simplest mechanism to store the data in XML documents.

It is acts as bridge between emulator and IDE, it executes remote shell commands to run applications on an emulator

The container holds objects,widgets,labels,fields,icons,buttons.etc.

Toast Notification − It will show a pop up message on the surface of the window

Status Bar Notification − It will show notifications on status bar

Dialogue Notification − It is an activity related notification.

A content provider component supplies data from one application to others on request. Such requests are handled by the methods of the ContentResolver class. A content provider can use different ways to store its data and the data can be stored in a database, in files, or even over a network.

View group is a collection of views and other child views, it is an invisible part and the base class for layouts.

Android SDK collaborated with Android Emulator,DDMS(Dalvik Debug Monitoring Services),AAPT(Android Asset Packaging tool) and ADB(Android debug bridge)

ADT stands for Android development tool,This is useful to develop the applications and test the applications.

Android applications has written using the java(Android SDK) and C/C++(Android NDK).

Every application must have an AndroidManifest.xml file (with precisely that name) in its root directory. The manifest file presents essential information about your app to the Android system, information the system must have before it can run any of the app's code.

The Android packaging key is compressed with classes,UI's, supportive assets and manifest.All files are compressed to a single file is called APK.

Android application architecture has the following components.They are as follows −

Services − It will perform background functionalities

Intent − It will perform the inter connection between activities and the data passing mechanism

Resource Externalization − strings and graphics

Notification − light,sound,icon,notification,dialog box,and toast

Content Providers − It will share the data between applications