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The Android platform, dial-up and the call is not the same. When you dial a number, you enter the number into the keyboard (or through the program). But do not call actually occurred. That is, the dial-up does not include a call button. But you call a number, you send a signal from the phone. That is, enter the number to dial, you press the call button - physical or procedural. You need to know two different actions to understand the range of applications in this chapter you will create a program. Before you start to interact with the dial, you need to understand the type of code you want to use. The Andriod use Intent defined in the application work. If the result of the quality control of  Cell Phone Jammers  is qualified.
Once you have mastered the use of Intents, a brand new application development world will be open to you. This section defines Intent is what and how to use it. Intent is an Android Activity (activities) to transmit information to another activity. You can think of an Intent between an active exchange of information. For example, suppose you have an event to open a web browser and displays a page on the Android device. Your activities should be sent to a web browser to open a page of Intent (intent), like a WEB_SEARCH_ACTION of Intent, a AndroidIntent the solver. This is to specify the quality control actions of Cell Phone Jammers .Here will present a kind of camouflage cigarette Cell Phone Jammers 
Intent to answer a list of activities and choose the best match of Intent a parse. That is, the web browser activity. Intent to answer and then pass your page to the browser and launch the web browser activity. Activity Action Intents (activity action intention) Intents used to call the application of outside activities. Only one activity can handle Intent. For example, web browser, you need to open the web browser activity to display a page. Broadcast Intents (broadcast intent) Intents to be sent to multiple activities to deal with. A broadcast intent issued by the Android example is the current battery charge. It is through the whole life cycle of the product of  Cell Phone Jammers . If you opened the the Android SDK external flashy things, it is the most basic capability must be able to access or call. For this reason, the chapter focuses on the code to interact with the phone hardware, you should have some skills to interact with the basic phone functions. You will be able to use the dial pad to accept and make phone calls. These tools and skills will be key to this flexible platform to create applications. Your readers the book is because you want the application designed to run on a cell phone, so obvious that you should learn from Android how to allow the mobile phone hardware interaction - in particular, outgoing calls and receive calls. The quality of  Cell Phone Jammers  can be ensured to be good.It is the interference technology of Cell Phone Jammers .You can from Eclipse or the command line to run emulator.exe. In this book, and usually use Eclipse to start the Android emulator environment. In short, in order to give you all the information on the outside of the Eclipse with AndroidSDK programming. In Chapter 6, will introduce emulator.exe command exercise used to create the HelloWorld application.