Android allows applications to access to view the access the state of the wireless connections at very low l
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Broadcast Receiverssimply respond to broadcast messages from other applications or from the system itself.
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An AndroidIntentis an abstract description of an operation to be performed. It can be used withstartActivity
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A widget is a small gadget or control of your android application placed on the home screen. Widgets can
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The Android platform offers a spelling checker framework that lets you implement and access spell checking i
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In this chapter we will look at the different UI components of android screen. This chapter also covers the
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Spinner控件，展示下拉列表，默认使用系统的样式。Spinner默认样式包括：Spinner本身样式和Spinner下拉样式（下拉列表样式），APP开发的需要，学会如何更改Spinner默认样式，制作出好看漂亮的
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A content provider component supplies data from one application to others on request. Such requests are ha
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