The compressed package is Android 4.4.2 (API19) SDK in source packages, containing the latest version of Android API source code for the students want to understand the underlying implementation mechanisms Android SDK

sources\android-19\android\accessibilityservice\AccessibilityService.java
.......\..........\.......\....................\AccessibilityServiceInfo.java
.......\..........\.......\...ounts\AbstractAccountAuthenticator.java
.......\..........\.......\........\Account.java
.......\..........\.......\........\AccountAndUser.java
.......\..........\.......\........\AccountAuthenticatorActivity.java
.......\..........\.......\........\AccountAuthenticatorResponse.java
.......\..........\.......\........\AccountManager.java
.......\..........\.......\........\AccountManagerCallback.java
.......\..........\.......\........\AccountManagerFuture.java
.......\..........\.......\........\AccountManagerResponse.java
.......\..........\.......\........\AccountsException.java
.......\..........\.......\........\AuthenticatorDescription.java
.......\..........\.......\........\AuthenticatorException.java
.......\..........\.......\........\CantAddAccountActivity.java
.......\..........\.......\........\ChooseAccountActivity.java
.......\..........\.......\........\ChooseAccountTypeActivity.java
.......\..........\.......\........\ChooseTypeAndAccountActivity.java
.......\..........\.......\........\GrantCredentialsPermissionActivity.java
.......\..........\.......\........\NetworkErrorException.java
.......\..........\.......\........\OnAccountsUpdateListener.java
.......\..........\.......\........\OperationCanceledException.java
.......\..........\.......\.nimation\AnimationThread.java
.......\..........\.......\.........\Animator.java
.......\..........\.......\.........\AnimatorInflater.java
.......\..........\.......\.........\AnimatorListenerAdapter.java
.......\..........\.......\.........\AnimatorSet.java
.......\..........\.......\.........\AnimatorSetEventsTest.java
.......\..........\.......\.........\ArgbEvaluator.java
.......\..........\.......\.........\AutoCancelTest.java
.......\..........\.......\.........\BasicAnimatorActivity.java
.......\..........\.......\.........\EventsTest.java
.......\..........\.......\.........\FloatEvaluator.java
.......\..........\.......\.........\FloatKeyframeSet.java
.......\..........\.......\.........\FutureWaiter.java
.......\..........\.......\.........\IntEvaluator.java
.......\..........\.......\.........\IntKeyframeSet.java
.......\..........\.......\.........\Keyframe.java
.......\..........\.......\.........\KeyframeSet.java
.......\..........\.......\.........\LayoutTransition.java
.......\..........\.......\.........\ObjectAnimator.java
.......\..........\.......\.........\ObjectAnimatorEventsTest.java
.......\..........\.......\.........\PropertyValuesHolder.java
.......\..........\.......\.........\PropertyValuesHolder_Delegate.java
.......\..........\.......\.........\RectEvaluator.java
.......\..........\.......\.........\TimeAnimator.java
.......\..........\.......\.........\TimeInterpolator.java
.......\..........\.......\.........\TypeEvaluator.java
.......\..........\.......\.........\ValueAnimator.java
.......\..........\.......\.........\ValueAnimatorEventsTest.java
.......\..........\.......\.........\ViewPropertyAnimatorTest.java
.......\..........\.......\..notation\SdkConstant.java
.......\..........\.......\..........\SuppressLint.java
.......\..........\.......\..........\TargetApi.java
.......\..........\.......\..........\Widget.java
.......\..........\.......\.pp\ActionBar.java
.......\..........\.......\...\activity\AbortReceiver.java
.......\..........\.......\...\........\ActivityManagerTest.java
.......\..........\.......\...\........\ActivityTests.java
.......\..........\.......\...\........\ActivityTestsBase.java
.......\..........\.......\...\........\BroadcastTest.java
.......\..........\.......\...\........\ClearTop.java
.......\..........\.......\...\........\IntentSenderTest.java
.......\..........\.......\...\........\LaunchpadActivity.java
.......\..........\.......\...\........\LaunchpadTabActivity.java
.......\..........\.......\...\........\LaunchTest.java
.......\..........\.......\...\........\LifecycleTest.java
.......\..........\......

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