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基于平台不同：Dalvik基于寄存器，而JVM基于栈，KVM基于栈运行环境不同：在有限的内存，允许同时运行多个Dalvik实例，并且每一个Dalvik应用作为一个独立的Linux进程执行。              JVM只能运行一个JVM实例，JVM因平台的不一样进程也不一样。              KVM只能一个实例运行。运行语言：    Dalvik可以运行不同的语言，如

public classThreadextends Objectimplements Runnablejava.lang.Object?java.lang.ThreadKnown Direct SubclassesHandlerThreadClass OverviewA Threadis a concurrent unit of execution. It has its own call s

Setting Up the ADT BundleThe ADT Bundle provides everythingyou need to start developing apps, including a version of the Eclipse IDE withbuilt-inADT (Android Developer Tools)to streamline your Andro

Get the Android SDKThe Android SDK provides you the API libraries and developer tools necessary to build, test, and debug apps for Android.If you're a new Android developer, we recommend you d

App ManifestIN THIS DOCUMENTStructure of the Manifest FileFile ConventionsFile FeaturesIntent FiltersIcons and LabelsPermissionsLibrariesEvery application must have an An