Titlebook: Beginning Android; Mark L. Murphy Book 2009 Mark Murphy 2009 Android.Container.Go.Internet.Java.Web Services.WebKit.database.programming.s

HEAVY

Using XML-Based Layoutsproach is to use an XML-based layout file. Dynamic instantiation of widgets is reserved for more complicated scenarios, where the widgets are not known at compile-time (e.g., populating a column of radio buttons based on data retrieved off the Internet).

nuclear-tests

哭得清醒了

jarring

Introduction: Focus and Approachics, though, are fairly unique to Android and what it does to prepare the actual application that will run on the device or emulator. Here’s a quick primer on the project structure to help you make sense of it all, particularly for the sample code referenced in this book, which can be found in the S

壁畫

Introduction: Focus and Approachide your application—the activities, the services, and so on. You also indicate how these pieces attach themselves to the overall Android system; for example, you indicate which activity (or activities) should appear on the device’s main menu (aka the launcher).

過于平凡

Introduction: Focus and Approachn build things, not so much that you cannot understand what is going on. However, the typical “Hello, World!” program has no interactivity (that is, it just dumps the words to a console), and so is really boring.

補(bǔ)充

集合

coagulation

猜忌

Reading and writing and ’rithmetic(e.g., 200ms) is a fine goal. At minimum, though, you need to make sure you respond within 5 seconds, or the ActivityManager could decide to play the role of the Grim Reaper and kill off your activity as being non-responsive.