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做网站排版用什么软件,厦门seo推广外包,wordpress主题新闻,网站推广渠道怎么做Android系统在启动时安装应用程序的过程，这些应用程序安装好之后，还需要有一个Home应用程序来负责把它们在桌面上展示出来，在Android系统中，这个默认的Home应用程序就是Launcher了，本文将详细分析Launcher应用程序的启…

Android系统在启动时安装应用程序的过程，这些应用程序安装好之后，还需要有一个Home应用程序来负责把它们在桌面上展示出来，在Android系统中，这个默认的Home应用程序就是Launcher了，本文将详细分析Launcher应用程序的启动过程。

 

@frameworks/base/services/core/java/com/android/server/am/UserController.java
finishUserUnlockingmHandler.obtainMessage(USER_UNLOCK_MSG, userId, 0, uss).sendToTarget();case USER_UNLOCK_MSG: finishUserUnlockedfinishUserUnlockedCompletedmHandler.obtainMessage(USER_UNLOCKED_MSG, userId, 0).sendToTarget();case USER_UNLOCKED_MSG: mInjector.getSystemServiceManager().onUserUnlocked(msg.arg1);mService.mTaskSupervisor.onUserUnlocked(user.getUserIdentifier());
@frameworks/base/services/core/java/com/android/server/wm/ActivityTaskSupervisor.javascheduleStartHome("userUnlocked");mHandler.obtainMessage(START_HOME_MSG, reason).sendToTarget();case START_HOME_MSG: { mRootWindowContainer.startHomeOnEmptyDisplays((String) msg.obj);    @frameworks/base/services/core/java/com/android/server/wm/RootWindowContainer.javastartHomeOnEmptyDisplaysforAllTaskDisplayAreas(taskDisplayArea -> {startHomeOnTaskDisplayArea(mCurrentUser, myReason, taskDisplayArea,        
@frameworks/base/services/core/java/com/android/server/wm/ActivityStartController.javaService.getActivityStartController().startHomeActivity(homeIntent, aInfo, myReason, taskDisplayArea);
@frameworks/base/services/core/java/com/android/server/wm/ActivityStarter.javamLastHomeActivityStartResult = obtainStarter(intent, "startHomeActivity: " + reason).setActivityOptions(options.toBundle()).execute();res = executeRequest(mRequest);ActivityRecord r = new ActivityRecord.Builder(mService)..setActivityInfo(aInfo)mLastStartActivityResult = startActivityUnchecked(r, sourceRecord, voiceSession,result = startActivityInner(r, sourceRecord, voiceSession, voiceInteractor,startFlags, doResume, options, inTask, inTaskFragment, restrictedBgActivity,mTargetRootTask.startActivityLocked(mStartActivity,
@frameworks/base/services/core/java/com/android/server/wm/RootWindowContainer.javamRootWindowContainer.resumeFocusedTasksTopActivities(mTargetRootTask, mStartActivity, mOptions, mTransientLaunch);final Task focusedRoot = display.getFocusedRootTask();
@frameworks/base/services/core/java/com/android/server/wm/Task.javafocusedRoot.resumeTopActivityUncheckedLocked(target, targetOptions);someActivityResumed = resumeTopActivityInnerLocked(prev, options, deferPause);
@frameworks/base/services/core/java/com/android/server/wm/TaskFragment.javaresumed[0] = topFragment.resumeTopActivity(prev, options, deferPause);ActivityRecord next = topRunningActivity(true /* focusableOnly */);pausing |= startPausing(mTaskSupervisor.mUserLeaving, false /* uiSleeping */, next, "resumeTopActivity");  //这里就是stop上一个activity的地方if (next.attachedToProcess()) {   //要启动的activity所在的进程已经起来了，直接通过事务的形式去启动activityfinal ClientTransaction transaction = ClientTransaction.obtain(next.app.getThread(), next.appToken);mAtmService.getLifecycleManager().scheduleTransaction(transaction);} else {   //如果进程没启动，调用ActivityTaskSupervisor的startSpecificActivity
@frameworks/base/services/core/java/com/android/server/wm/ActivityTaskSupervisor.javamTaskSupervisor.startSpecificActivity(next, true, true);
@base/services/core/java/com/android/server/wm/ActivityTaskManagerService.javamService.startProcessAsync(r, knownToBeDead, isTop, isTop ? "top-activity" : "activity");final Message m = PooledLambda.obtainMessage(ActivityManagerInternal::startProcess, mAmInternal, activity.processName,mH.sendMessage(m);LocalService::startProcess  //class LocalService extends ActivityManagerInternalstartProcessLocked(processName, info, knownToBeDead, 0 /* intentFlags */, new HostingRecord(hostingType, hostingName, isTop),
@frameworks/base/services/core/java/com/android/server/am/ProcessList.javareturn mProcessList.startProcessLocked(processName, info, knownToBeDead, intentFlags,startProcessLocked(app, hostingRecord, zygotePolicyFlags, abiOverride);startProcessLocked(app, hostingRecord, zygotePolicyFlags, falsestartProcessLocked(hostingRecord, entryPoint, app, uid, gids, runtimeFlags, zygotePolicyFlags, mountExternal, seInfo, requiredAbi,mService.mProcStartHandler.post(() -> handleProcessStart( app,handleProcessStartedLocked(app, startResult, startSeq);return handleProcessStartedLocked(pending, startResult.pid, startResult.usingWrapper,buf.append("Start proc ");  //Start proc 1486:com.dynabook.VDlauncher/1000 for top-activity {com.dynabook.VDlauncher/com.dynabook.VDlauncher.MainActivity}buf.append(pid);buf.append(':');buf.append(app.processName);buf.append('/');buf.append(app.getHostingRecord().getType());buf.append(app.getHostingRecord().getName());..............
@src/main/java/com/dynabook/VDlauncher/MainActivity.javaMainActivity::onCreate

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@frameworks/base/services/core/java/com/android/server/am/UserController.java finishUserUnlocking mHandler.obtainMessage(USER_UNLOCK_MSG, userId, 0, uss).sendToTarget(); case USER_UNLOCK_MSG: finishUserUnlocked finishUserUnlockedCompleted mHandler.obtainMessage(USER_UNLOCKED_MSG, userId, 0).sendToTarget(); case USER_UNLOCKED_MSG: mInjector.getSystemServiceManager().onUserUnlocked(msg.arg1); mService.mTaskSupervisor.onUserUnlocked(user.getUserIdentifier()); @frameworks/base/services/core/java/com/android/server/wm/ActivityTaskSupervisor.java scheduleStartHome("userUnlocked"); mHandler.obtainMessage(START_HOME_MSG, reason).sendToTarget(); case START_HOME_MSG: { mRootWindowContainer.startHomeOnEmptyDisplays((String) msg.obj); @frameworks/base/services/core/java/com/android/server/wm/RootWindowContainer.java startHomeOnEmptyDisplays forAllTaskDisplayAreas(taskDisplayArea -> { startHomeOnTaskDisplayArea(mCurrentUser, myReason, taskDisplayArea, @frameworks/base/services/core/java/com/android/server/wm/ActivityStartController.java Service.getActivityStartController().startHomeActivity(homeIntent, aInfo, myReason, taskDisplayArea); @frameworks/base/services/core/java/com/android/server/wm/ActivityStarter.java mLastHomeActivityStartResult = obtainStarter(intent, "startHomeActivity: " + reason).setActivityOptions(options.toBundle()).execute(); res = executeRequest(mRequest); ActivityRecord r = new ActivityRecord.Builder(mService)..setActivityInfo(aInfo) mLastStartActivityResult = startActivityUnchecked(r, sourceRecord, voiceSession, result = startActivityInner(r, sourceRecord, voiceSession, voiceInteractor,startFlags, doResume, options, inTask, inTaskFragment, restrictedBgActivity, mTargetRootTask.startActivityLocked(mStartActivity, @frameworks/base/services/core/java/com/android/server/wm/RootWindowContainer.java mRootWindowContainer.resumeFocusedTasksTopActivities(mTargetRootTask, mStartActivity, mOptions, mTransientLaunch); final Task focusedRoot = display.getFocusedRootTask(); @frameworks/base/services/core/java/com/android/server/wm/Task.java focusedRoot.resumeTopActivityUncheckedLocked(target, targetOptions); someActivityResumed = resumeTopActivityInnerLocked(prev, options, deferPause); @frameworks/base/services/core/java/com/android/server/wm/TaskFragment.java resumed[0] = topFragment.resumeTopActivity(prev, options, deferPause); ActivityRecord next = topRunningActivity(true /* focusableOnly */); pausing |= startPausing(mTaskSupervisor.mUserLeaving, false /* uiSleeping */, next, "resumeTopActivity"); //这里就是stop上一个activity的地方 if (next.attachedToProcess()) { //要启动的activity所在的进程已经起来了，直接通过事务的形式去启动activity final ClientTransaction transaction = ClientTransaction.obtain(next.app.getThread(), next.appToken); mAtmService.getLifecycleManager().scheduleTransaction(transaction); } else { //如果进程没启动，调用ActivityTaskSupervisor的startSpecificActivity @frameworks/base/services/core/java/com/android/server/wm/ActivityTaskSupervisor.java mTaskSupervisor.startSpecificActivity(next, true, true); @base/services/core/java/com/android/server/wm/ActivityTaskManagerService.java mService.startProcessAsync(r, knownToBeDead, isTop, isTop ? "top-activity" : "activity"); final Message m = PooledLambda.obtainMessage(ActivityManagerInternal::startProcess, mAmInternal, activity.processName, mH.sendMessage(m); LocalService::startProcess //class LocalService extends ActivityManagerInternal startProcessLocked(processName, info, knownToBeDead, 0 /* intentFlags */, new HostingRecord(hostingType, hostingName, isTop), @frameworks/base/services/core/java/com/android/server/am/ProcessList.java return mProcessList.startProcessLocked(processName, info, knownToBeDead, intentFlags, startProcessLocked(app, hostingRecord, zygotePolicyFlags, abiOverride); startProcessLocked(app, hostingRecord, zygotePolicyFlags, false startProcessLocked(hostingRecord, entryPoint, app, uid, gids, runtimeFlags, zygotePolicyFlags, mountExternal, seInfo, requiredAbi, mService.mProcStartHandler.post(() -> handleProcessStart( app, handleProcessStartedLocked(app, startResult, startSeq); return handleProcessStartedLocked(pending, startResult.pid, startResult.usingWrapper, buf.append("Start proc "); //Start proc 1486:com.dynabook.VDlauncher/1000 for top-activity {com.dynabook.VDlauncher/com.dynabook.VDlauncher.MainActivity} buf.append(pid); buf.append(':'); buf.append(app.processName); buf.append('/'); buf.append(app.getHostingRecord().getType()); buf.append(app.getHostingRecord().getName()); .............. @src/main/java/com/dynabook/VDlauncher/MainActivity.java MainActivity::onCreate

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