爱站网排名,做海报有什么素材网站知乎,wordpress邮箱失败,pckr wordpressActivity的启动流程 努力工作 自己平时工作接触的frameworks代码比较多#xff0c;但真正理解的很有限#xff0c;一直在努力分析。。我主要还是用补丁的形式来看 core/java/android/app/Activity.java | 6 core/java/android/app/ActivityManagerNative.jav…Activity的启动流程 努力工作 自己平时工作接触的frameworks代码比较多但真正理解的很有限一直在努力分析。。我主要还是用补丁的形式来看 core/java/android/app/Activity.java | 6 core/java/android/app/ActivityManagerNative.java | 14 -core/java/android/app/ActivityThread.java | 63 -core/java/android/app/ApplicationThreadNative.java | 7 core/java/android/app/IApplicationThread.java | 8 core/java/android/app/Instrumentation.java | 16 .../android/server/am/ActivityManagerService.java | 10 -.../java/com/android/server/am/ActivityStack.java | 12 -.../android/server/am/ActivityStackSupervisor.java | 51 -9 files changed, 181 insertions(), 6 deletions(-)diff --git a/core/java/android/app/Activity.java b/core/java/android/app/Activity.java
index 4b705dd..527cc38 100644
--- a/core/java/android/app/Activity.javab/core/java/android/app/Activity.java-3731,6 3731,12 public class Activity extends ContextThemeWrapper** see #startActivity*//***Created by Smaster / one;* mParent代表的是ActivityGroup, ActivityGroup最开始被用来在一个界面中嵌入多个Activity.* -- Instrumentation execStartActivity()方法* */public void startActivityForResult(Intent intent, int requestCode, Nullable Bundle options) {if (mParent null) {Instrumentation.ActivityResult ar
diff --git a/core/java/android/app/ActivityManagerNative.java b/core/java/android/app/ActivityManagerNative.java
index 4e2ff0b..6ca7a32 100644
--- a/core/java/android/app/ActivityManagerNative.javab/core/java/android/app/ActivityManagerNative.java-78,6 78,11 public abstract class ActivityManagerNative extends Binder implements IActivityM/*** Retrieve the systems default/global activity manager.*//** * created by Smaster / three;*** */static public IActivityManager getDefault() {return gDefault.get();}-2337,7 2342,14 public abstract class ActivityManagerNative extends Binder implements IActivityMpublic IBinder asBinder() {return this;}
-/***created by Smaster / four;* 单利封装emsp;在后续的调用中直接返回之前创建的对象。** AMS startActivity.** */private static final SingletonIActivityManager gDefault new SingletonIActivityManager() {protected IActivityManager create() {IBinder b ServiceManager.getService(activity);
diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index dd49009..6ef3729 100644
--- a/core/java/android/app/ActivityThread.javab/core/java/android/app/ActivityThread.java-545,7 545,21 public final class ActivityThread {}private native void dumpGraphicsInfo(FileDescriptor fd);/*** created by Smaster / nineteen;* 继承ApplicationThreadNative, ApplicationThreadNative 继承Binder ;* 并实现IApplicationThread接口* 类似AIDL * ApplicationThreadNative 中emsp;-- ApplicationThreadProxy类。* */ /*** created by Smaster / twenty-one;* 再次从ApplicationThreadNative中归来*emsp;ApplicationThread 是真正实现IApplicationThread的类* -- scheduleLaunchActivity -- 启动Activity.* */private class ApplicationThread extends ApplicationThreadNative {private static final String ONE_COUNT_COLUMN %21s %8d;private static final String TWO_COUNT_COLUMNS %21s %8d %21s %8d;-603,6 617,9 public final class ActivityThread {// we use token to identify this activity without having to send the// activity itself back to the activity manager. (matters more with ipc)//// created by Smaster / twenty-two;// sendMessage -- 发送一个消息给H处理。 -- Handleremsp;中emsp;Hpublic final void scheduleLaunchActivity(Intent intent, IBinder token, int ident,ActivityInfo info, Configuration curConfig, CompatibilityInfo compatInfo,IVoiceInteractor voiceInteractor, int procState, Bundle state,-1158,6 1175,11 public final class ActivityThread {}} /*** created by Smaster / twenty-three;* 对消息的处理emsp;LAUNCH_ACTIVITY ;** */private class H extends Handler {public static final int LAUNCH_ACTIVITY 100;public static final int PAUSE_ACTIVITY 101;-1266,6 1288,12 public final class ActivityThread {}return Integer.toString(code);}/*** created by Smaster / twenty-four;* handleMessage(r, null)方法实现** */public void handleMessage(Message msg) {if (DEBUG_MESSAGES) Slog.v(TAG, handling: codeToString(msg.what));switch (msg.what) {-2172,9 2200,20 public final class ActivityThread {sendMessage(H.CLEAN_UP_CONTEXT, cci);} /*** created by Smaster / twenty-six;* 该方法最终完成activity的啓動* 主要完成六件事** . ** */private Activity performLaunchActivity(ActivityClientRecord r, Intent customIntent) {// System.out.println(##### [ System.currentTimeMillis() ] ActivityThread.performLaunchActivity( r ));
-/**** 1.从ActivityClientRecord中获取待启动的Activity的组件信息* */ActivityInfo aInfo r.activityInfo;if (r.packageInfo null) {r.packageInfo getPackageInfo(aInfo.applicationInfo, r.compatInfo,-2195,6 2234,10 public final class ActivityThread {Activity activity null;try {/*** 2. 通过Instrumention的newActivity方法使用类加载器创建Activity对象** */java.lang.ClassLoader cl r.packageInfo.getClassLoader();activity mInstrumentation.newActivity(cl, component.getClassName(), r.intent);-2213,6 2256,11 public final class ActivityThread {}try {/*** 3. 创建Application 对象** */Application app r.packageInfo.makeApplication(false, mInstrumentation);if (localLOGV) Slog.v(TAG, Performing launch of r);-2224,6 2272,12 public final class ActivityThread { , dir r.packageInfo.getAppDir());if (activity ! null) {/*** 4. 创建ContextImpl 对象并通过Activity的attach方法来完成一些重要数据的初始化* emsp;Context的逻辑都是由ContexImpl来完成的。* emsp;ContextImpl是通过activity的attach方法来和activity建立关联。* emsp;* */Context appContext createBaseContextForActivity(r, activity);CharSequence title r.activityInfo.loadLabel(appContext.getPackageManager());Configuration config new Configuration(mCompatConfiguration);-2248,6 2302,9 public final class ActivityThread {if (r.isPersistable()) {mInstrumentation.callActivityOnCreate(activity, r.state, r.persistentState);} else {/*** 5. finished;i成* */mInstrumentation.callActivityOnCreate(activity, r.state);}if (!activity.mCalled) {-2340,6 2397,10 public final class ActivityThread {return baseContext;} /*** created by Smaster / twenty-five;* --- performLaunchActivity* */private void handleLaunchActivity(ActivityClientRecord r, Intent customIntent) {// If we are getting ready to gc after going to the background, well// we are back active so skip it.
diff --git a/core/java/android/app/ApplicationThreadNative.java b/core/java/android/app/ApplicationThreadNative.java
index 0123e16..544c00d 100644
--- a/core/java/android/app/ApplicationThreadNative.javab/core/java/android/app/ApplicationThreadNative.java-678,6 678,13 public abstract class ApplicationThreadNative extends Binder}}/*** created by Smaster / twenty;* 系统AIDL / * ApplicationThreadNative 是 IApplicationThreademsp;的实现者。* 由于ApplicationThreadNative被定义为抽象类emsp;所以ApplicationThread就成* 了IApplicationThread的最终实现者。* */class ApplicationThreadProxy implements IApplicationThread {private final IBinder mRemote;diff --git a/core/java/android/app/IApplicationThread.java b/core/java/android/app/IApplicationThread.java
index f53075c..226fe31 100644
--- a/core/java/android/app/IApplicationThread.javab/core/java/android/app/IApplicationThread.java-47,6 47,14 import java.util.Map;** {hide}*//*** created by Smaster / eighteen;* 继承IInterface接口所以它是emsp;Binder 类型的接口。*emsp;包含大量启动emsp;/ 停止emsp;/ Activity的接口。emsp;和emsp;停止emsp;/ 启动emsp;服务的接口* IApplicationThread 中的实现emsp;--- emsp;ActivityThread中内部类emsp;ApplicationThread.* */public interface IApplicationThread extends IInterface {void schedulePauseActivity(IBinder token, boolean finished, boolean userLeaving,int configChanges, boolean dontReport) throws RemoteException;
diff --git a/core/java/android/app/Instrumentation.java b/core/java/android/app/Instrumentation.java
index 60a013e..228f982 100644
--- a/core/java/android/app/Instrumentation.javab/core/java/android/app/Instrumentation.java-1482,6 1482,10 public class Instrumentation {intent.resolveTypeIfNeeded(who.getContentResolver()),token, target ! null ? target.mEmbeddedID : null,requestCode, 0, null, options);/*** created by Smaster / five;* 检查activity的启动结果* */checkStartActivityResult(result, intent);} catch (RemoteException e) {}-1632,6 1636,13 public class Instrumentation {** {hide}*//*** created by Smaster / two;* --- ActivityManagerNative.getDefault().startActivityAsUser();* AMS中实现*emsp;AMS 继承emsp;AMN , AMN继承Binder 并实现IActivityManager.* 因此AMS也是一个Binder, 它是IActivityManager的具体实现。* */public ActivityResult execStartActivity(Context who, IBinder contextThread, IBinder token, Activity target,Intent intent, int requestCode, Bundle options, UserHandle user) {-1749,6 1760,11 public class Instrumentation {}/** hide *//*** creatd by Smaster / six;* 当无法正确启动一个Activity时这个方法会抛出一个异常信息*emsp;当待启动的Activity没有在AndroidManifest中注册时emsp;会抛出这个异常* */public static void checkStartActivityResult(int res, Object intent) {if (res ActivityManager.START_SUCCESS) {return;
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 8dfb321..a20d5c3 100755
--- a/services/core/java/com/android/server/am/ActivityManagerService.javab/services/core/java/com/android/server/am/ActivityManagerService.java-3535,7 3535,11 public final class ActivityManagerService extends ActivityManagerNative}mProcessObservers.finishBroadcast();}
-/*** created by Smaster / seven;** */Overridepublic final int startActivity(IApplicationThread caller, String callingPackage,Intent intent, String resolvedType, IBinder resultTo, String resultWho, int requestCode,-3545,6 3549,10 public final class ActivityManagerService extends ActivityManagerNativeUserHandle.getCallingUserId());} /*** creatd by Smaster / eight;* -- ActivityStackSupervisor startactivityMayWait方法* */Overridepublic final int startActivityAsUser(IApplicationThread caller, String callingPackage,Intent intent, String resolvedType, IBinder resultTo, String resultWho, int requestCode,
diff --git a/services/core/java/com/android/server/am/ActivityStack.java b/services/core/java/com/android/server/am/ActivityStack.java
index e1b8278..dbe3249 100755
--- a/services/core/java/com/android/server/am/ActivityStack.javab/services/core/java/com/android/server/am/ActivityStack.java-1467,6 1467,11 final class ActivityStack {return resumeTopActivityLocked(prev, null);} /*** created by Smaster / thirteen;* -- resumeTopActivityInnerLocked** */final boolean resumeTopActivityLocked(ActivityRecord prev, Bundle options) {if (inResumeTopActivity) {// Dont even start recursing.-1483,7 1488,12 final class ActivityStack {}return result;}
-/*** creatd by Smaster / fourteen;* -- ActivityStackSupervisor startSpecificActivityLocked方法** */final boolean resumeTopActivityInnerLocked(ActivityRecord prev, Bundle options) {if (ActivityManagerService.DEBUG_LOCKSCREEN) mService.logLockScreen();diff --git a/services/core/java/com/android/server/am/ActivityStackSupervisor.java b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
index 03dd3c0..e3c7ecb 100644
--- a/services/core/java/com/android/server/am/ActivityStackSupervisor.javab/services/core/java/com/android/server/am/ActivityStackSupervisor.java-810,6 810,11 public final class ActivityStackSupervisor implements DisplayListener {0, 0, 0, null, false, null, null, null);} /*** created by Smaster / nine;* -- startActivityLocked;* */
final int startActivityMayWait(IApplicationThread caller, int callingUid,String callingPackage, Intent intent, String resolvedType,IVoiceInteractionSession voiceSession, IVoiceInteractor voiceInteractor,-1058,6 1063,10 public final class ActivityStackSupervisor implements DisplayListener {return ActivityManager.START_SUCCESS;} /*** created by Smaster / sixteen;* * */final boolean realStartActivityLocked(ActivityRecord r,ProcessRecord app, boolean andResume, boolean checkConfig)throws RemoteException {-1154,6 1163,25 public final class ActivityStackSupervisor implements DisplayListener {? new ProfilerInfo(profileFile, profileFd, mService.mSamplingInterval,mService.mAutoStopProfiler) : null;app.forceProcessStateUpTo(ActivityManager.PROCESS_STATE_TOP);/* created by Smaster / seventeen;*emsp;总结: * startActivityMayWait* |* startActivityLocked* |* startActivityUncheckedLocked --- resumeTopActivitiesLocked* | * startSpecificActivityLocked --- resumeTopActivitiesLocked* |* realStartActivityLocked ActivityStack;** ActivityStackSupervisor;**** app.thread的类型为IApplicationThread** **/app.thread.scheduleLaunchActivity(new Intent(r.intent), r.appToken,System.identityHashCode(r), r.info, new Configuration(mService.mConfiguration),r.compat, r.task.voiceInteractor, app.repProcState, r.icicle, r.persistentState,-1235,6 1263,10 public final class ActivityStackSupervisor implements DisplayListener {return true;} /*** created by Smaster / fifteen;* -- realStartActivityLocked;* */void startSpecificActivityLocked(ActivityRecord r,boolean andResume, boolean checkConfig) {// Is this activitys application already running?-1269,6 1301,11 public final class ActivityStackSupervisor implements DisplayListener {activity, r.intent.getComponent(), false, false, true);} /*** created by Smaster / ten ;* -- startActivityUncheckedLocked方法** */final int startActivityLocked(IApplicationThread caller,Intent intent, String resolvedType, ActivityInfo aInfo,IVoiceInteractionSession voiceSession, IVoiceInteractor voiceInteractor,-1570,7 1607,12 public final class ActivityStackSupervisor implements DisplayListener {moveHomeStack(isHomeActivity);}}
-
emsp;emsp;/***created by Smaster / eleven;* * --- resumeTopActivitiesLocked();**/emsp;final int startActivityUncheckedLocked(ActivityRecord r, ActivityRecord sourceRecord,IVoiceInteractionSession voiceSession, IVoiceInteractor voiceInteractor, int startFlags,boolean doResume, Bundle options, TaskRecord inTask) {-2417,7 2459,12 public final class ActivityStackSupervisor implements DisplayListener {boolean resumeTopActivitiesLocked() {return resumeTopActivitiesLocked(null, null, null);}
-/*** created by Smaster / twelve;* --- ActivityStackemsp;resumeTopActivityLocked;** */boolean resumeTopActivitiesLocked(ActivityStack targetStack, ActivityRecord target,Bundle targetOptions) {if (targetStack null) {
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复制代码我会逐渐增加注释 转载于:https://juejin.im/post/5b00315d51882542ad7743a2
