https://www.mywiki.cn/Hovercool/index.php?action=history&feed=atom&title=%E5%BA%94%E7%94%A8%E7%9A%84%E5%90%AF%E5%8A%A8%E6%B5%81%E7%A8%8B 2026-09-01T04:47:08Z 本wiki上该页面的版本历史 MediaWiki 1.45.1 https://www.mywiki.cn/Hovercool/index.php?title=%E5%BA%94%E7%94%A8%E7%9A%84%E5%90%AF%E5%8A%A8%E6%B5%81%E7%A8%8B&diff=1395&oldid=prev 2015-05-22T04:17:34Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="zh-Hans-CN"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上一版本</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">2015年5月22日 (五) 04:17的版本</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l84">第84行：</td> <td colspan="2" class="diff-lineno">第84行：</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;/pre&gt;</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;/pre&gt;</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">进入 App用户代码，执行 </del>onCreate等函数：</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">ZygoteInit.runSelectLoop接收到上面发的 socket，通过 forkAndSpecialize创建进程，完毕通过 ZygoteInit.invokeStaticMain抛出 ZygoteInit.MethodAndArgsCaller异常，清除之前的调用堆栈</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">&lt;pre&gt;</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">ZygoteInit.main</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">└─ZygoteInit.runSelectLoop</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">    └─ZygoteConnection.runOnce</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">        └─Zygote.forkAndSpecialize</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">        └─ZygoteConnection.handleChildProc</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">            └─ZygoteInit.invokeStaticMain</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">                └─throw "ZygoteInit.MethodAndArgsCaller" Exception //如此则将之前的调用堆栈清除</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">└─ZygoteInit.MethodAndArgsCaller.run</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">&lt;/pre&gt;</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">从此便已进入 App自己的进程，开始执行 App自己的代码，执行 </ins>onCreate等函数：</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;pre&gt;</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;pre&gt;</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>W/System.err( 1148): java.lang.Exception: kaigo print trace</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>W/System.err( 1148): java.lang.Exception: kaigo print trace</div></td></tr> </table>

Hovercool https://www.mywiki.cn/Hovercool/index.php?title=%E5%BA%94%E7%94%A8%E7%9A%84%E5%90%AF%E5%8A%A8%E6%B5%81%E7%A8%8B&diff=834&oldid=prev 2015-05-06T12:00:33Z

<p></p> <p><b>新页面</b></p><div>com.android.launcher中执行：<br /> &lt;pre&gt;<br /> W/System.err( 527): java.lang.Exception: kaigo print trace - startActivity<br /> W/System.err( 527): at android.app.ActivityManagerProxy.startActivity(ActivityManagerNative.java:1610)<br /> W/System.err( 527): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1385)<br /> W/System.err( 527): at android.app.Activity.startActivityForResult(Activity.java:3315)<br /> W/System.err( 527): at com.android.launcher2.Launcher.startActivityForResult(Launcher.java:1504)<br /> W/System.err( 527): at android.app.Activity.startActivity(Activity.java:3422)<br /> W/System.err( 527): at com.android.launcher2.Launcher.startActivitySafely(Launcher.java:2025)<br /> W/System.err( 527): at com.android.launcher2.AppsCustomizePagedView$3.run(AppsCustomizePagedView.java:539)<br /> W/System.err( 527): at com.android.launcher2.PagedView$1.onAnimationRepeat(PagedView.java:1068)<br /> W/System.err( 527): at android.animation.ValueAnimator.animationFrame(ValueAnimator.java:1128)<br /> W/System.err( 527): at android.animation.ValueAnimator$AnimationHandler.handleMessage(ValueAnimator.java:656)<br /> W/System.err( 527): at android.os.Handler.dispatchMessage(Handler.java:99)<br /> W/System.err( 527): at android.os.Looper.loop(Looper.java:154)<br /> W/System.err( 527): at android.app.ActivityThread.main(ActivityThread.java:4643)<br /> W/System.err( 527): at java.lang.reflect.Method.invokeNative(Native Method)<br /> W/System.err( 527): at java.lang.reflect.Method.invoke(Method.java:511)<br /> W/System.err( 527): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:811)<br /> W/System.err( 527): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)<br /> W/System.err( 527): at dalvik.system.NativeStart.main(Native Method)<br /> &lt;/pre&gt;<br /> <br /> 通过 binder 跨进程，进而在 system_server中执行：<br /> &lt;pre&gt;<br /> W/System.err( 305): java.lang.Exception: kaigo print trace - schedulePauseActivity<br /> W/System.err( 305): at android.app.ApplicationThreadProxy.schedulePauseActivity(ApplicationThreadNative.java:572)<br /> W/System.err( 305): at com.android.server.am.ActivityStack.startPausingLocked(ActivityStack.java:914)<br /> W/System.err( 305): at com.android.server.am.ActivityStack.resumeTopActivityLocked(ActivityStack.java:1444)<br /> W/System.err( 305): at com.android.server.am.ActivityStack.startActivityLocked(ActivityStack.java:1853)<br /> W/System.err( 305): at com.android.server.am.ActivityStack.startActivityUncheckedLocked(ActivityStack.java:2946)<br /> W/System.err( 305): at com.android.server.am.ActivityStack.startActivityLocked(ActivityStack.java:2518)<br /> W/System.err( 305): at com.android.server.am.ActivityStack.startActivityMayWait(ActivityStack.java:3099)<br /> W/System.err( 305): at com.android.server.am.ActivityManagerService.startActivity(ActivityManagerService.java:2535)<br /> W/System.err( 305): at android.app.ActivityManagerNative.onTransact(ActivityManagerNative.java:132)<br /> W/System.err( 305): at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:1756)<br /> W/System.err( 305): at android.os.Binder.execTransact(Binder.java:338)<br /> W/System.err( 305): at dalvik.system.NativeStart.run(Native Method)<br /> &lt;/pre&gt;<br /> <br /> 通过 binder，调回 lanucher的 schedulePauseActivity函数：<br /> &lt;pre&gt;<br /> W/System.err( 527): java.lang.Exception: kaigo print trace - schedulePauseActivity<br /> W/System.err( 527): at android.app.ActivityThread$ApplicationThread.schedulePauseActivity(ActivityThread.java:530)<br /> W/System.err( 527): at android.app.ApplicationThreadNative.onTransact(ApplicationThreadNative.java:78)<br /> W/System.err( 527): at android.os.Binder.execTransact(Binder.java:338)<br /> W/System.err( 527): at dalvik.system.NativeStart.run(Native Method)<br /> &lt;/pre&gt;<br /> <br /> launcher进入暂停状态：<br /> &lt;pre&gt;<br /> W/System.err( 527): java.lang.Exception: kaigo print trace - activityPaused<br /> W/System.err( 527): at android.app.ActivityManagerProxy.activityPaused(ActivityManagerNative.java:1906)<br /> W/System.err( 527): at android.app.ActivityThread.handlePauseActivity(ActivityThread.java:2801)<br /> W/System.err( 527): at android.app.ActivityThread.access$800(ActivityThread.java:134)<br /> W/System.err( 527): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1255)<br /> W/System.err( 527): at android.os.Handler.dispatchMessage(Handler.java:99)<br /> W/System.err( 527): at android.os.Looper.loop(Looper.java:154)<br /> W/System.err( 527): at android.app.ActivityThread.main(ActivityThread.java:4643)<br /> W/System.err( 527): at java.lang.reflect.Method.invokeNative(Native Method)<br /> W/System.err( 527): at java.lang.reflect.Method.invoke(Method.java:511)<br /> W/System.err( 527): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:811)<br /> W/System.err( 527): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)<br /> W/System.err( 527): at dalvik.system.NativeStart.main(Native Method)<br /> &lt;/pre&gt;<br /> <br /> 通过 socket通知 zygote，为即将启动的 APP fork一个新进程：<br /> &lt;pre&gt;<br /> W/System.err( 305): java.lang.Exception: kaigo print trace<br /> W/System.err( 305): at android.os.Process.zygoteSendArgsAndGetResult(Process.java:389)<br /> W/System.err( 305): at android.os.Process.startViaZygote(Process.java:525)<br /> W/System.err( 305): at android.os.Process.start(Process.java:290)<br /> W/System.err( 305): at com.android.server.am.ActivityManagerService.startProcessLocked(ActivityManagerService.java:2225)<br /> W/System.err( 305): at com.android.server.am.ActivityManagerService.startProcessLocked(ActivityManagerService.java:2133)<br /> W/System.err( 305): at com.android.server.am.ActivityStack.startSpecificActivityLocked(ActivityStack.java:747)<br /> W/System.err( 305): at com.android.server.am.ActivityStack.resumeTopActivityLocked(ActivityStack.java:1688)<br /> W/System.err( 305): at com.android.server.am.ActivityStack.completePauseLocked(ActivityStack.java:1084)<br /> W/System.err( 305): at com.android.server.am.ActivityStack.activityPaused(ActivityStack.java:988)<br /> W/System.err( 305): at com.android.server.am.ActivityManagerService.activityPaused(ActivityManagerService.java:4751)<br /> W/System.err( 305): at android.app.ActivityManagerNative.onTransact(ActivityManagerNative.java:372)<br /> W/System.err( 305): at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:1756)<br /> W/System.err( 305): at android.os.Binder.execTransact(Binder.java:338)<br /> W/System.err( 305): at dalvik.system.NativeStart.run(Native Method)<br /> &lt;/pre&gt;<br /> <br /> 进入 App用户代码，执行 onCreate等函数：<br /> &lt;pre&gt;<br /> W/System.err( 1148): java.lang.Exception: kaigo print trace<br /> W/System.err( 1148): at com.example.helloandroid_4_0.MainActivity.onCreate(MainActivity.java:106)<br /> W/System.err( 1148): at android.app.Activity.performCreate(Activity.java:4590)<br /> W/System.err( 1148): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1050)<br /> W/System.err( 1148): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2042)<br /> W/System.err( 1148): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2105)<br /> W/System.err( 1148): at android.app.ActivityThread.access$600(ActivityThread.java:134)<br /> W/System.err( 1148): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1248)<br /> W/System.err( 1148): at android.os.Handler.dispatchMessage(Handler.java:99)<br /> W/System.err( 1148): at android.os.Looper.loop(Looper.java:154)<br /> W/System.err( 1148): at android.app.ActivityThread.main(ActivityThread.java:4643)<br /> W/System.err( 1148): at java.lang.reflect.Method.invokeNative(Native Method)<br /> W/System.err( 1148): at java.lang.reflect.Method.invoke(Method.java:511)<br /> W/System.err( 1148): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:811)<br /> W/System.err( 1148): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)<br /> W/System.err( 1148): at dalvik.system.NativeStart.main(Native Method)<br /> <br /> &lt;/pre&gt;<br /> <br /> 各 pid对应的进程如下：<br /> &lt;pre&gt;<br /> system 305 116 429368 85188 ffffffff 40019c70 S system_server<br /> app_21 527 116 357424 60444 ffffffff 4001a9a0 S com.android.launcher<br /> app_63 1148 116 297944 52100 ffffffff 4001a9a0 S com.example.helloandroid_4_0<br /> &lt;/pre&gt;<br /> ----<br /> <br /> &lt;pre&gt;<br /> I/ActivityManager( 308): java.lang.RuntimeException: here<br /> I/ActivityManager( 308): at com.android.server.am.ActivityStack.startActivityLocked(ActivityStack.java:1754)<br /> I/ActivityManager( 308): at com.android.server.am.ActivityStack.startActivityUncheckedLocked(ActivityStack.java:2926)<br /> I/ActivityManager( 308): at com.android.server.am.ActivityStack.startActivityLocked(ActivityStack.java:2498)<br /> I/ActivityManager( 308): at com.android.server.am.ActivityStack.startActivityMayWait(ActivityStack.java:3079)<br /> I/ActivityManager( 308): at com.android.server.am.ActivityManagerService.startActivity(ActivityManagerService.java:2535)<br /> I/ActivityManager( 308): at android.app.ActivityManagerNative.onTransact(ActivityManagerNative.java:131)<br /> I/ActivityManager( 308): at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:1756)<br /> I/ActivityManager( 308): at android.os.Binder.execTransact(Binder.java:338)<br /> I/ActivityManager( 308): at com.android.server.SystemServer.init1(Native Method)<br /> I/ActivityManager( 308): at com.android.server.SystemServer.main(SystemServer.java:946)<br /> I/ActivityManager( 308): at java.lang.reflect.Method.invokeNative(Native Method)<br /> I/ActivityManager( 308): at java.lang.reflect.Method.invoke(Method.java:511)<br /> I/ActivityManager( 308): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:809)<br /> I/ActivityManager( 308): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)<br /> I/ActivityManager( 308): at dalvik.system.NativeStart.main(Native Method)<br /> &lt;/pre&gt;</div>

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