Android开发者，必须知道的并且没有遇到的异常，附带简单的解决方案和异常过程源码的分析从java层到Jni层
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在android开发的过程中异常几乎是家常小菜了，常见的异常估计就那些大家熟知的，那今天博主给大家分享一个作为一个开发者很少遇到的异常，再
此之前都不知道android系统居然还有这样的限制，今天就把这个排错的过程以及源码的分享给大家分享一下，希望大家在以后开发的过程中遇到类似
问题有一个参考！
需求的过程：
首先我把问题产生的过程大致描述一遍，我们的项目中有一个关于行车轨迹回放的功能，而这个功能的需求是这样的，当用户选择一个最近30天的日期，程序根据
该日期去服务器获取该日期的轨迹数据包，这个包通常情况下会很大，平均每天大概80000多个点，程序获取成功后会得到json数据，项目的架构是在fragment下
将数据以Intent.putExtras函数将Bundle传递给activity，activity拿到数据后，先解析json然后将轨迹数据解密，重新封装，再将封装好的数据传递给自定义的绘制控
制，让笔者自己封装的控件进行绘制轨迹线路，在用一个小车切图的marker进行移动动画展示给用户，这就是这个功能的大致实现了
问题的产生：
在fragment拿到数据后通过Bundle.putString(key,JSONObject.toString());将数据存好，在Intent.putExtras(Bundle);然后通过 getContext().startActivity跳转到我的
activity，将数据给到activity，在跳转的过程发生闪退，并且这个现象在所有的android手机上可以复现，100%复现，并且 activity onCreate()函数没被调用，我开始
觉得诡异，就怀疑是不是轨迹点有问题？我去后台查了当天的轨迹数据，发现没有任何问题，只是点太多了而已，然后继续回到程序中，检测代码，代码也没有任
何错误跟逻辑问题，我并开始怀疑是不是Intent或者是Bundle携带的数据过大导致的，我就打开Linux查看android源码，发现这这两个类的存储函数是没有大小限制
的，于是乎开始怀疑getContext().startActivity(Intent)函数,因为公司测试人员的手机没有打开开发者模式，并且属于深度定制，于是笔者将程序安装在了一个MTK方
案上的手机上，叫来了自己的同事一起来看这个问题，同事把log写到了本地，结果
发现确实是getContext().startActivity(Intent)函数引起的，由于传递的包过大导致程序进程被kill掉了
异常的log截图：
源码的分析(底层启动activity的机制)：
我们分序号来一个一个得看调用关系，这样会理得清楚一点，根据先后调用，序号递增排列
① 调用 com.android.server.am.ActivityManagerService 的 onTransact 函数，而该函数super.onTransact也就是其父类的onTransact函数，其父类 android.app.ActivityManagerNative
com.android.server.am.ActivityManagerService 的 onTransact 函数代码：
@Override
public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
throws RemoteException
if (code == SYSPROPS_TRANSACTION)
// We need to tell all apps about the system property change.
ArrayList<IBinder> procs = new ArrayList<IBinder>();
synchronized(this)
final int NP = mProcessNames.getMap().size();
for (int ip=0; ip<NP; ip++)
SparseArray<ProcessRecord> apps = mProcessNames.getMap().valueAt(ip);
final int NA = apps.size();
for (int ia=0; ia<NA; ia++)
ProcessRecord app = apps.valueAt(ia);
if (app.thread != null)
procs.add(app.thread.asBinder());
int N = procs.size();
for (int i=0; i<N; i++)
Parcel data2 = Parcel.obtain();
try
procs.get(i).transact(IBinder.SYSPROPS_TRANSACTION, data2, null, 0);
catch (RemoteException e)
data2.recycle();
try
return super.onTransact(code, data, reply, flags);
catch (RuntimeException e)
// The activity manager only throws security exceptions, so let's
// log all others.
if (!(e instanceof SecurityException))
Slog.wtf(TAG, "Activity Manager Crash", e);
throw e;
注意：该函数代码贼长...，读者可以直接跳跃到case ATTACH_APPLICATION_TRANSACTION 那里
@Override
public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
throws RemoteException
switch (code)
case START_ACTIVITY_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app = ApplicationThreadNative.asInterface(b);
String callingPackage = data.readString();
Intent intent = Intent.CREATOR.createFromParcel(data);
String resolvedType = data.readString();
IBinder resultTo = data.readStrongBinder();
String resultWho = data.readString();
int requestCode = data.readInt();
int startFlags = data.readInt();
ProfilerInfo profilerInfo = data.readInt() != 0
? ProfilerInfo.CREATOR.createFromParcel(data) : null;
Bundle options = data.readInt() != 0
? Bundle.CREATOR.createFromParcel(data) : null;
int result = startActivity(app, callingPackage, intent, resolvedType,
resultTo, resultWho, requestCode, startFlags, profilerInfo, options);
reply.writeNoException();
reply.writeInt(result);
return true;
case START_ACTIVITY_AS_USER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app = ApplicationThreadNative.asInterface(b);
String callingPackage = data.readString();
Intent intent = Intent.CREATOR.createFromParcel(data);
String resolvedType = data.readString();
IBinder resultTo = data.readStrongBinder();
String resultWho = data.readString();
int requestCode = data.readInt();
int startFlags = data.readInt();
ProfilerInfo profilerInfo = data.readInt() != 0
? ProfilerInfo.CREATOR.createFromParcel(data) : null;
Bundle options = data.readInt() != 0
? Bundle.CREATOR.createFromParcel(data) : null;
int userId = data.readInt();
int result = startActivityAsUser(app, callingPackage, intent, resolvedType,
resultTo, resultWho, requestCode, startFlags, profilerInfo, options, userId);
reply.writeNoException();
reply.writeInt(result);
return true;
case START_ACTIVITY_AS_CALLER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app = ApplicationThreadNative.asInterface(b);
String callingPackage = data.readString();
Intent intent = Intent.CREATOR.createFromParcel(data);
String resolvedType = data.readString();
IBinder resultTo = data.readStrongBinder();
String resultWho = data.readString();
int requestCode = data.readInt();
int startFlags = data.readInt();
ProfilerInfo profilerInfo = data.readInt() != 0
? ProfilerInfo.CREATOR.createFromParcel(data) : null;
Bundle options = data.readInt() != 0
? Bundle.CREATOR.createFromParcel(data) : null;
boolean ignoreTargetSecurity = data.readInt() != 0;
int userId = data.readInt();
int result = startActivityAsCaller(app, callingPackage, intent, resolvedType,
resultTo, resultWho, requestCode, startFlags, profilerInfo, options,
ignoreTargetSecurity, userId);
reply.writeNoException();
reply.writeInt(result);
return true;
case START_ACTIVITY_AND_WAIT_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app = ApplicationThreadNative.asInterface(b);
String callingPackage = data.readString();
Intent intent = Intent.CREATOR.createFromParcel(data);
String resolvedType = data.readString();
IBinder resultTo = data.readStrongBinder();
String resultWho = data.readString();
int requestCode = data.readInt();
int startFlags = data.readInt();
ProfilerInfo profilerInfo = data.readInt() != 0
? ProfilerInfo.CREATOR.createFromParcel(data) : null;
Bundle options = data.readInt() != 0
? Bundle.CREATOR.createFromParcel(data) : null;
int userId = data.readInt();
WaitResult result = startActivityAndWait(app, callingPackage, intent, resolvedType,
resultTo, resultWho, requestCode, startFlags, profilerInfo, options, userId);
reply.writeNoException();
result.writeToParcel(reply, 0);
return true;
case START_ACTIVITY_WITH_CONFIG_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app = ApplicationThreadNative.asInterface(b);
String callingPackage = data.readString();
Intent intent = Intent.CREATOR.createFromParcel(data);
String resolvedType = data.readString();
IBinder resultTo = data.readStrongBinder();
String resultWho = data.readString();
int requestCode = data.readInt();
int startFlags = data.readInt();
Configuration config = Configuration.CREATOR.createFromParcel(data);
Bundle options = data.readInt() != 0
? Bundle.CREATOR.createFromParcel(data) : null;
int userId = data.readInt();
int result = startActivityWithConfig(app, callingPackage, intent, resolvedType,
resultTo, resultWho, requestCode, startFlags, config, options, userId);
reply.writeNoException();
reply.writeInt(result);
return true;
case START_ACTIVITY_INTENT_SENDER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app = ApplicationThreadNative.asInterface(b);
IntentSender intent = IntentSender.CREATOR.createFromParcel(data);
Intent fillInIntent = null;
if (data.readInt() != 0)
fillInIntent = Intent.CREATOR.createFromParcel(data);
String resolvedType = data.readString();
IBinder resultTo = data.readStrongBinder();
String resultWho = data.readString();
int requestCode = data.readInt();
int flagsMask = data.readInt();
int flagsValues = data.readInt();
Bundle options = data.readInt() != 0
? Bundle.CREATOR.createFromParcel(data) : null;
int result = startActivityIntentSender(app, intent,
fillInIntent, resolvedType, resultTo, resultWho,
requestCode, flagsMask, flagsValues, options);
reply.writeNoException();
reply.writeInt(result);
return true;
case START_VOICE_ACTIVITY_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
String callingPackage = data.readString();
int callingPid = data.readInt();
int callingUid = data.readInt();
Intent intent = Intent.CREATOR.createFromParcel(data);
String resolvedType = data.readString();
IVoiceInteractionSession session = IVoiceInteractionSession.Stub.asInterface(
data.readStrongBinder());
IVoiceInteractor interactor = IVoiceInteractor.Stub.asInterface(
data.readStrongBinder());
int startFlags = data.readInt();
ProfilerInfo profilerInfo = data.readInt() != 0
? ProfilerInfo.CREATOR.createFromParcel(data) : null;
Bundle options = data.readInt() != 0
? Bundle.CREATOR.createFromParcel(data) : null;
int userId = data.readInt();
int result = startVoiceActivity(callingPackage, callingPid, callingUid, intent,
resolvedType, session, interactor, startFlags, profilerInfo, options, userId);
reply.writeNoException();
reply.writeInt(result);
return true;
case START_NEXT_MATCHING_ACTIVITY_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder callingActivity = data.readStrongBinder();
Intent intent = Intent.CREATOR.createFromParcel(data);
Bundle options = data.readInt() != 0
? Bundle.CREATOR.createFromParcel(data) : null;
boolean result = startNextMatchingActivity(callingActivity, intent, options);
reply.writeNoException();
reply.writeInt(result ? 1 : 0);
return true;
case START_ACTIVITY_FROM_RECENTS_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int taskId = data.readInt();
Bundle options = data.readInt() == 0 ? null : Bundle.CREATOR.createFromParcel(data);
int result = startActivityFromRecents(taskId, options);
reply.writeNoException();
reply.writeInt(result);
return true;
case FINISH_ACTIVITY_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
Intent resultData = null;
int resultCode = data.readInt();
if (data.readInt() != 0)
resultData = Intent.CREATOR.createFromParcel(data);
boolean finishTask = (data.readInt() != 0);
boolean res = finishActivity(token, resultCode, resultData, finishTask);
reply.writeNoException();
reply.writeInt(res ? 1 : 0);
return true;
case FINISH_SUB_ACTIVITY_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
String resultWho = data.readString();
int requestCode = data.readInt();
finishSubActivity(token, resultWho, requestCode);
reply.writeNoException();
return true;
case FINISH_ACTIVITY_AFFINITY_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
boolean res = finishActivityAffinity(token);
reply.writeNoException();
reply.writeInt(res ? 1 : 0);
return true;
case FINISH_VOICE_TASK_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IVoiceInteractionSession session = IVoiceInteractionSession.Stub.asInterface(
data.readStrongBinder());
finishVoiceTask(session);
reply.writeNoException();
return true;
case RELEASE_ACTIVITY_INSTANCE_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
boolean res = releaseActivityInstance(token);
reply.writeNoException();
reply.writeInt(res ? 1 : 0);
return true;
case RELEASE_SOME_ACTIVITIES_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IApplicationThread app = ApplicationThreadNative.asInterface(data.readStrongBinder());
releaseSomeActivities(app);
reply.writeNoException();
return true;
case WILL_ACTIVITY_BE_VISIBLE_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
boolean res = willActivityBeVisible(token);
reply.writeNoException();
reply.writeInt(res ? 1 : 0);
return true;
case REGISTER_RECEIVER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app =
b != null ? ApplicationThreadNative.asInterface(b) : null;
String packageName = data.readString();
b = data.readStrongBinder();
IIntentReceiver rec
= b != null ? IIntentReceiver.Stub.asInterface(b) : null;
IntentFilter filter = IntentFilter.CREATOR.createFromParcel(data);
String perm = data.readString();
int userId = data.readInt();
Intent intent = registerReceiver(app, packageName, rec, filter, perm, userId);
reply.writeNoException();
if (intent != null)
reply.writeInt(1);
intent.writeToParcel(reply, 0);
else
reply.writeInt(0);
return true;
case UNREGISTER_RECEIVER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
if (b == null)
return true;
IIntentReceiver rec = IIntentReceiver.Stub.asInterface(b);
unregisterReceiver(rec);
reply.writeNoException();
return true;
case BROADCAST_INTENT_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app =
b != null ? ApplicationThreadNative.asInterface(b) : null;
Intent intent = Intent.CREATOR.createFromParcel(data);
String resolvedType = data.readString();
b = data.readStrongBinder();
IIntentReceiver resultTo =
b != null ? IIntentReceiver.Stub.asInterface(b) : null;
int resultCode = data.readInt();
String resultData = data.readString();
Bundle resultExtras = data.readBundle();
String[] perms = data.readStringArray();
int appOp = data.readInt();
Bundle options = data.readBundle();
boolean serialized = data.readInt() != 0;
boolean sticky = data.readInt() != 0;
int userId = data.readInt();
int res = broadcastIntent(app, intent, resolvedType, resultTo,
resultCode, resultData, resultExtras, perms, appOp,
options, serialized, sticky, userId);
reply.writeNoException();
reply.writeInt(res);
return true;
case UNBROADCAST_INTENT_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app = b != null ? ApplicationThreadNative.asInterface(b) : null;
Intent intent = Intent.CREATOR.createFromParcel(data);
int userId = data.readInt();
unbroadcastIntent(app, intent, userId);
reply.writeNoException();
return true;
case FINISH_RECEIVER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder who = data.readStrongBinder();
int resultCode = data.readInt();
String resultData = data.readString();
Bundle resultExtras = data.readBundle();
boolean resultAbort = data.readInt() != 0;
int intentFlags = data.readInt();
if (who != null)
finishReceiver(who, resultCode, resultData, resultExtras, resultAbort, intentFlags);
reply.writeNoException();
return true;
case ATTACH_APPLICATION_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IApplicationThread app = ApplicationThreadNative.asInterface(
data.readStrongBinder());
if (app != null)
attachApplication(app);
reply.writeNoException();
return true;
case ACTIVITY_IDLE_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
Configuration config = null;
if (data.readInt() != 0)
config = Configuration.CREATOR.createFromParcel(data);
boolean stopProfiling = data.readInt() != 0;
if (token != null)
activityIdle(token, config, stopProfiling);
reply.writeNoException();
return true;
case ACTIVITY_RESUMED_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
activityResumed(token);
reply.writeNoException();
return true;
case ACTIVITY_PAUSED_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
activityPaused(token);
reply.writeNoException();
return true;
case ACTIVITY_STOPPED_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
Bundle map = data.readBundle();
PersistableBundle persistentState = data.readPersistableBundle();
CharSequence description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(data);
activityStopped(token, map, persistentState, description);
reply.writeNoException();
return true;
case ACTIVITY_SLEPT_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
activitySlept(token);
reply.writeNoException();
return true;
case ACTIVITY_DESTROYED_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
activityDestroyed(token);
reply.writeNoException();
return true;
case GET_CALLING_PACKAGE_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
String res = token != null ? getCallingPackage(token) : null;
reply.writeNoException();
reply.writeString(res);
return true;
case GET_CALLING_ACTIVITY_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
ComponentName cn = getCallingActivity(token);
reply.writeNoException();
ComponentName.writeToParcel(cn, reply);
return true;
case GET_APP_TASKS_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
String callingPackage = data.readString();
List<IAppTask> list = getAppTasks(callingPackage);
reply.writeNoException();
int N = list != null ? list.size() : -1;
reply.writeInt(N);
int i;
for (i=0; i<N; i++)
IAppTask task = list.get(i);
reply.writeStrongBinder(task.asBinder());
return true;
case ADD_APP_TASK_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder activityToken = data.readStrongBinder();
Intent intent = Intent.CREATOR.createFromParcel(data);
ActivityManager.TaskDescription descr
= ActivityManager.TaskDescription.CREATOR.createFromParcel(data);
Bitmap thumbnail = Bitmap.CREATOR.createFromParcel(data);
int res = addAppTask(activityToken, intent, descr, thumbnail);
reply.writeNoException();
reply.writeInt(res);
return true;
case GET_APP_TASK_THUMBNAIL_SIZE_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
Point size = getAppTaskThumbnailSize();
reply.writeNoException();
size.writeToParcel(reply, 0);
return true;
case GET_TASKS_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int maxNum = data.readInt();
int fl = data.readInt();
List<ActivityManager.RunningTaskInfo> list = getTasks(maxNum, fl);
reply.writeNoException();
int N = list != null ? list.size() : -1;
reply.writeInt(N);
int i;
for (i=0; i<N; i++)
ActivityManager.RunningTaskInfo info = list.get(i);
info.writeToParcel(reply, 0);
return true;
case GET_RECENT_TASKS_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int maxNum = data.readInt();
int fl = data.readInt();
int userId = data.readInt();
List<ActivityManager.RecentTaskInfo> list = getRecentTasks(maxNum,
fl, userId);
reply.writeNoException();
reply.writeTypedList(list);
return true;
case GET_TASK_THUMBNAIL_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int id = data.readInt();
ActivityManager.TaskThumbnail taskThumbnail = getTaskThumbnail(id);
reply.writeNoException();
if (taskThumbnail != null)
reply.writeInt(1);
taskThumbnail.writeToParcel(reply, Parcelable.PARCELABLE_WRITE_RETURN_VALUE);
else
reply.writeInt(0);
return true;
case GET_SERVICES_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int maxNum = data.readInt();
int fl = data.readInt();
List<ActivityManager.RunningServiceInfo> list = getServices(maxNum, fl);
reply.writeNoException();
int N = list != null ? list.size() : -1;
reply.writeInt(N);
int i;
for (i=0; i<N; i++)
ActivityManager.RunningServiceInfo info = list.get(i);
info.writeToParcel(reply, 0);
return true;
case GET_PROCESSES_IN_ERROR_STATE_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
List<ActivityManager.ProcessErrorStateInfo> list = getProcessesInErrorState();
reply.writeNoException();
reply.writeTypedList(list);
return true;
case GET_RUNNING_APP_PROCESSES_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
List<ActivityManager.RunningAppProcessInfo> list = getRunningAppProcesses();
reply.writeNoException();
reply.writeTypedList(list);
return true;
case GET_RUNNING_EXTERNAL_APPLICATIONS_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
List<ApplicationInfo> list = getRunningExternalApplications();
reply.writeNoException();
reply.writeTypedList(list);
return true;
case MOVE_TASK_TO_FRONT_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int task = data.readInt();
int fl = data.readInt();
Bundle options = data.readInt() != 0
? Bundle.CREATOR.createFromParcel(data) : null;
moveTaskToFront(task, fl, options);
reply.writeNoException();
return true;
case MOVE_ACTIVITY_TASK_TO_BACK_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
boolean nonRoot = data.readInt() != 0;
boolean res = moveActivityTaskToBack(token, nonRoot);
reply.writeNoException();
reply.writeInt(res ? 1 : 0);
return true;
case MOVE_TASK_BACKWARDS_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int task = data.readInt();
moveTaskBackwards(task);
reply.writeNoException();
return true;
case MOVE_TASK_TO_STACK_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int taskId = data.readInt();
int stackId = data.readInt();
boolean toTop = data.readInt() != 0;
moveTaskToStack(taskId, stackId, toTop);
reply.writeNoException();
return true;
case RESIZE_STACK_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int stackId = data.readInt();
Rect r = Rect.CREATOR.createFromParcel(data);
resizeStack(stackId, r);
reply.writeNoException();
return true;
case GET_ALL_STACK_INFOS_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
List<StackInfo> list = getAllStackInfos();
reply.writeNoException();
reply.writeTypedList(list);
return true;
case GET_STACK_INFO_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int stackId = data.readInt();
StackInfo info = getStackInfo(stackId);
reply.writeNoException();
if (info != null)
reply.writeInt(1);
info.writeToParcel(reply, 0);
else
reply.writeInt(0);
return true;
case IS_IN_HOME_STACK_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int taskId = data.readInt();
boolean isInHomeStack = isInHomeStack(taskId);
reply.writeNoException();
reply.writeInt(isInHomeStack ? 1 : 0);
return true;
case SET_FOCUSED_STACK_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int stackId = data.readInt();
setFocusedStack(stackId);
reply.writeNoException();
return true;
case GET_FOCUSED_STACK_ID_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int focusedStackId = getFocusedStackId();
reply.writeNoException();
reply.writeInt(focusedStackId);
return true;
case REGISTER_TASK_STACK_LISTENER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
registerTaskStackListener(ITaskStackListener.Stub.asInterface(token));
reply.writeNoException();
return true;
case GET_TASK_FOR_ACTIVITY_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
boolean onlyRoot = data.readInt() != 0;
int res = token != null
? getTaskForActivity(token, onlyRoot) : -1;
reply.writeNoException();
reply.writeInt(res);
return true;
case GET_CONTENT_PROVIDER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app = ApplicationThreadNative.asInterface(b);
String name = data.readString();
int userId = data.readInt();
boolean stable = data.readInt() != 0;
ContentProviderHolder cph = getContentProvider(app, name, userId, stable);
reply.writeNoException();
if (cph != null)
reply.writeInt(1);
cph.writeToParcel(reply, 0);
else
reply.writeInt(0);
return true;
case GET_CONTENT_PROVIDER_EXTERNAL_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
String name = data.readString();
int userId = data.readInt();
IBinder token = data.readStrongBinder();
ContentProviderHolder cph = getContentProviderExternal(name, userId, token);
reply.writeNoException();
if (cph != null)
reply.writeInt(1);
cph.writeToParcel(reply, 0);
else
reply.writeInt(0);
return true;
case PUBLISH_CONTENT_PROVIDERS_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app = ApplicationThreadNative.asInterface(b);
ArrayList<ContentProviderHolder> providers =
data.createTypedArrayList(ContentProviderHolder.CREATOR);
publishContentProviders(app, providers);
reply.writeNoException();
return true;
case REF_CONTENT_PROVIDER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
int stable = data.readInt();
int unstable = data.readInt();
boolean res = refContentProvider(b, stable, unstable);
reply.writeNoException();
reply.writeInt(res ? 1 : 0);
return true;
case UNSTABLE_PROVIDER_DIED_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
unstableProviderDied(b);
reply.writeNoException();
return true;
case APP_NOT_RESPONDING_VIA_PROVIDER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
appNotRespondingViaProvider(b);
reply.writeNoException();
return true;
case REMOVE_CONTENT_PROVIDER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
boolean stable = data.readInt() != 0;
removeContentProvider(b, stable);
reply.writeNoException();
return true;
case REMOVE_CONTENT_PROVIDER_EXTERNAL_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
String name = data.readString();
IBinder token = data.readStrongBinder();
removeContentProviderExternal(name, token);
reply.writeNoException();
return true;
case GET_RUNNING_SERVICE_CONTROL_PANEL_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
ComponentName comp = ComponentName.CREATOR.createFromParcel(data);
PendingIntent pi = getRunningServiceControlPanel(comp);
reply.writeNoException();
PendingIntent.writePendingIntentOrNullToParcel(pi, reply);
return true;
case START_SERVICE_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app = ApplicationThreadNative.asInterface(b);
Intent service = Intent.CREATOR.createFromParcel(data);
String resolvedType = data.readString();
String callingPackage = data.readString();
int userId = data.readInt();
ComponentName cn = startService(app, service, resolvedType, callingPackage, userId);
reply.writeNoException();
ComponentName.writeToParcel(cn, reply);
return true;
case STOP_SERVICE_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app = ApplicationThreadNative.asInterface(b);
Intent service = Intent.CREATOR.createFromParcel(data);
String resolvedType = data.readString();
int userId = data.readInt();
int res = stopService(app, service, resolvedType, userId);
reply.writeNoException();
reply.writeInt(res);
return true;
case STOP_SERVICE_TOKEN_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
ComponentName className = ComponentName.readFromParcel(data);
IBinder token = data.readStrongBinder();
int startId = data.readInt();
boolean res = stopServiceToken(className, token, startId);
reply.writeNoException();
reply.writeInt(res ? 1 : 0);
return true;
case SET_SERVICE_FOREGROUND_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
ComponentName className = ComponentName.readFromParcel(data);
IBinder token = data.readStrongBinder();
int id = data.readInt();
Notification notification = null;
if (data.readInt() != 0)
notification = Notification.CREATOR.createFromParcel(data);
boolean removeNotification = data.readInt() != 0;
setServiceForeground(className, token, id, notification, removeNotification);
reply.writeNoException();
return true;
case BIND_SERVICE_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app = ApplicationThreadNative.asInterface(b);
IBinder token = data.readStrongBinder();
Intent service = Intent.CREATOR.createFromParcel(data);
String resolvedType = data.readString();
b = data.readStrongBinder();
int fl = data.readInt();
String callingPackage = data.readString();
int userId = data.readInt();
IServiceConnection conn = IServiceConnection.Stub.asInterface(b);
int res = bindService(app, token, service, resolvedType, conn, fl,
callingPackage, userId);
reply.writeNoException();
reply.writeInt(res);
return true;
case UNBIND_SERVICE_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IServiceConnection conn = IServiceConnection.Stub.asInterface(b);
boolean res = unbindService(conn);
reply.writeNoException();
reply.writeInt(res ? 1 : 0);
return true;
case PUBLISH_SERVICE_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
Intent intent = Intent.CREATOR.createFromParcel(data);
IBinder service = data.readStrongBinder();
publishService(token, intent, service);
reply.writeNoException();
return true;
case UNBIND_FINISHED_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
Intent intent = Intent.CREATOR.createFromParcel(data);
boolean doRebind = data.readInt() != 0;
unbindFinished(token, intent, doRebind);
reply.writeNoException();
return true;
case SERVICE_DONE_EXECUTING_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
int type = data.readInt();
int startId = data.readInt();
int res = data.readInt();
serviceDoneExecuting(token, type, startId, res);
reply.writeNoException();
return true;
case START_INSTRUMENTATION_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
ComponentName className = ComponentName.readFromParcel(data);
String profileFile = data.readString();
int fl = data.readInt();
Bundle arguments = data.readBundle();
IBinder b = data.readStrongBinder();
IInstrumentationWatcher w = IInstrumentationWatcher.Stub.asInterface(b);
b = data.readStrongBinder();
IUiAutomationConnection c = IUiAutomationConnection.Stub.asInterface(b);
int userId = data.readInt();
String abiOverride = data.readString();
boolean res = startInstrumentation(className, profileFile, fl, arguments, w, c, userId,
abiOverride);
reply.writeNoException();
reply.writeInt(res ? 1 : 0);
return true;
case FINISH_INSTRUMENTATION_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app = ApplicationThreadNative.asInterface(b);
int resultCode = data.readInt();
Bundle results = data.readBundle();
finishInstrumentation(app, resultCode, results);
reply.writeNoException();
return true;
case GET_CONFIGURATION_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
Configuration config = getConfiguration();
reply.writeNoException();
config.writeToParcel(reply, 0);
return true;
case UPDATE_CONFIGURATION_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
Configuration config = Configuration.CREATOR.createFromParcel(data);
updateConfiguration(config);
reply.writeNoException();
return true;
case SET_REQUESTED_ORIENTATION_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
int requestedOrientation = data.readInt();
setRequestedOrientation(token, requestedOrientation);
reply.writeNoException();
return true;
case GET_REQUESTED_ORIENTATION_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
int req = getRequestedOrientation(token);
reply.writeNoException();
reply.writeInt(req);
return true;
case GET_ACTIVITY_CLASS_FOR_TOKEN_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
ComponentName cn = getActivityClassForToken(token);
reply.writeNoException();
ComponentName.writeToParcel(cn, reply);
return true;
case GET_PACKAGE_FOR_TOKEN_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
reply.writeNoException();
reply.writeString(getPackageForToken(token));
return true;
case GET_INTENT_SENDER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int type = data.readInt();
String packageName = data.readString();
IBinder token = data.readStrongBinder();
String resultWho = data.readString();
int requestCode = data.readInt();
Intent[] requestIntents;
String[] requestResolvedTypes;
if (data.readInt() != 0)
requestIntents = data.createTypedArray(Intent.CREATOR);
requestResolvedTypes = data.createStringArray();
else
requestIntents = null;
requestResolvedTypes = null;
int fl = data.readInt();
Bundle options = data.readInt() != 0
? Bundle.CREATOR.createFromParcel(data) : null;
int userId = data.readInt();
IIntentSender res = getIntentSender(type, packageName, token,
resultWho, requestCode, requestIntents,
requestResolvedTypes, fl, options, userId);
reply.writeNoException();
reply.writeStrongBinder(res != null ? res.asBinder() : null);
return true;
case CANCEL_INTENT_SENDER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IIntentSender r = IIntentSender.Stub.asInterface(
data.readStrongBinder());
cancelIntentSender(r);
reply.writeNoException();
return true;
case GET_PACKAGE_FOR_INTENT_SENDER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IIntentSender r = IIntentSender.Stub.asInterface(
data.readStrongBinder());
String res = getPackageForIntentSender(r);
reply.writeNoException();
reply.writeString(res);
return true;
case GET_UID_FOR_INTENT_SENDER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IIntentSender r = IIntentSender.Stub.asInterface(
data.readStrongBinder());
int res = getUidForIntentSender(r);
reply.writeNoException();
reply.writeInt(res);
return true;
case HANDLE_INCOMING_USER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int callingPid = data.readInt();
int callingUid = data.readInt();
int userId = data.readInt();
boolean allowAll = data.readInt() != 0 ;
boolean requireFull = data.readInt() != 0;
String name = data.readString();
String callerPackage = data.readString();
int res = handleIncomingUser(callingPid, callingUid, userId, allowAll,
requireFull, name, callerPackage);
reply.writeNoException();
reply.writeInt(res);
return true;
case SET_PROCESS_LIMIT_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int max = data.readInt();
setProcessLimit(max);
reply.writeNoException();
return true;
case GET_PROCESS_LIMIT_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int limit = getProcessLimit();
reply.writeNoException();
reply.writeInt(limit);
return true;
case SET_PROCESS_FOREGROUND_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder token = data.readStrongBinder();
int pid = data.readInt();
boolean isForeground = data.readInt() != 0;
setProcessForeground(token, pid, isForeground);
reply.writeNoException();
return true;
case CHECK_PERMISSION_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
String perm = data.readString();
int pid = data.readInt();
int uid = data.readInt();
int res = checkPermission(perm, pid, uid);
reply.writeNoException();
reply.writeInt(res);
return true;
case CHECK_PERMISSION_WITH_TOKEN_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
String perm = data.readString();
int pid = data.readInt();
int uid = data.readInt();
IBinder token = data.readStrongBinder();
int res = checkPermissionWithToken(perm, pid, uid, token);
reply.writeNoException();
reply.writeInt(res);
return true;
case CHECK_URI_PERMISSION_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
Uri uri = Uri.CREATOR.createFromParcel(data);
int pid = data.readInt();
int uid = data.readInt();
int mode = data.readInt();
int userId = data.readInt();
IBinder callerToken = data.readStrongBinder();
int res = checkUriPermission(uri, pid, uid, mode, userId, callerToken);
reply.writeNoException();
reply.writeInt(res);
return true;
case CLEAR_APP_DATA_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
String packageName = data.readString();
IPackageDataObserver observer = IPackageDataObserver.Stub.asInterface(
data.readStrongBinder());
int userId = data.readInt();
boolean res = clearApplicationUserData(packageName, observer, userId);
reply.writeNoException();
reply.writeInt(res ? 1 : 0);
return true;
case GRANT_URI_PERMISSION_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app = ApplicationThreadNative.asInterface(b);
String targetPkg = data.readString();
Uri uri = Uri.CREATOR.createFromParcel(data);
int mode = data.readInt();
int userId = data.readInt();
grantUriPermission(app, targetPkg, uri, mode, userId);
reply.writeNoException();
return true;
case REVOKE_URI_PERMISSION_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app = ApplicationThreadNative.asInterface(b);
Uri uri = Uri.CREATOR.createFromParcel(data);
int mode = data.readInt();
int userId = data.readInt();
revokeUriPermission(app, uri, mode, userId);
reply.writeNoException();
return true;
case TAKE_PERSISTABLE_URI_PERMISSION_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
Uri uri = Uri.CREATOR.createFromParcel(data);
int mode = data.readInt();
int userId = data.readInt();
takePersistableUriPermission(uri, mode, userId);
reply.writeNoException();
return true;
case RELEASE_PERSISTABLE_URI_PERMISSION_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
Uri uri = Uri.CREATOR.createFromParcel(data);
int mode = data.readInt();
int userId = data.readInt();
releasePersistableUriPermission(uri, mode, userId);
reply.writeNoException();
return true;
case GET_PERSISTED_URI_PERMISSIONS_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
final String packageName = data.readString();
final boolean incoming = data.readInt() != 0;
final ParceledListSlice<UriPermission> perms = getPersistedUriPermissions(
packageName, incoming);
reply.writeNoException();
perms.writeToParcel(reply, Parcelable.PARCELABLE_WRITE_RETURN_VALUE);
return true;
case SHOW_WAITING_FOR_DEBUGGER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder b = data.readStrongBinder();
IApplicationThread app = ApplicationThreadNative.asInterface(b);
boolean waiting = data.readInt() != 0;
showWaitingForDebugger(app, waiting);
reply.writeNoException();
return true;
case GET_MEMORY_INFO_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
ActivityManager.MemoryInfo mi = new ActivityManager.MemoryInfo();
getMemoryInfo(mi);
reply.writeNoException();
mi.writeToParcel(reply, 0);
return true;
case UNHANDLED_BACK_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
unhandledBack();
reply.writeNoException();
return true;
case OPEN_CONTENT_URI_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
Uri uri = Uri.parse(data.readString());
ParcelFileDescriptor pfd = openContentUri(uri);
reply.writeNoException();
if (pfd != null)
reply.writeInt(1);
pfd.writeToParcel(reply, Parcelable.PARCELABLE_WRITE_RETURN_VALUE);
else
reply.writeInt(0);
return true;
case SET_LOCK_SCREEN_SHOWN_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
setLockScreenShown(data.readInt() != 0);
reply.writeNoException();
return true;
case SET_DEBUG_APP_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
String pn = data.readString();
boolean wfd = data.readInt() != 0;
boolean per = data.readInt() != 0;
setDebugApp(pn, wfd, per);
reply.writeNoException();
return true;
case SET_ALWAYS_FINISH_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
boolean enabled = data.readInt() != 0;
setAlwaysFinish(enabled);
reply.writeNoException();
return true;
case SET_ACTIVITY_CONTROLLER_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IActivityController watcher = IActivityController.Stub.asInterface(
data.readStrongBinder());
setActivityController(watcher);
reply.writeNoException();
return true;
case ENTER_SAFE_MODE_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
enterSafeMode();
reply.writeNoException();
return true;
case NOTE_WAKEUP_ALARM_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IIntentSender is = IIntentSender.Stub.asInterface(
data.readStrongBinder());
int sourceUid = data.readInt();
String sourcePkg = data.readString();
String tag = data.readString();
noteWakeupAlarm(is, sourceUid, sourcePkg, tag);
reply.writeNoException();
return true;
case NOTE_ALARM_START_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IIntentSender is = IIntentSender.Stub.asInterface(
data.readStrongBinder());
int sourceUid = data.readInt();
String tag = data.readString();
noteAlarmStart(is, sourceUid, tag);
reply.writeNoException();
return true;
case NOTE_ALARM_FINISH_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IIntentSender is = IIntentSender.Stub.asInterface(
data.readStrongBinder());
int sourceUid = data.readInt();
String tag = data.readString();
noteAlarmFinish(is, sourceUid, tag);
reply.writeNoException();
return true;
case KILL_PIDS_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int[] pids = data.createIntArray();
String reason = data.readString();
boolean secure = data.readInt() != 0;
boolean res = killPids(pids, reason, secure);
reply.writeNoException();
reply.writeInt(res ? 1 : 0);
return true;
case KILL_PROCESSES_BELOW_FOREGROUND_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
String reason = data.readString();
boolean res = killProcessesBelowForeground(reason);
reply.writeNoException();
reply.writeInt(res ? 1 : 0);
return true;
case HANDLE_APPLICATION_CRASH_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder app = data.readStrongBinder();
ApplicationErrorReport.CrashInfo ci = new ApplicationErrorReport.CrashInfo(data);
handleApplicationCrash(app, ci);
reply.writeNoException();
return true;
case HANDLE_APPLICATION_WTF_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder app = data.readStrongBinder();
String tag = data.readString();
boolean system = data.readInt() != 0;
ApplicationErrorReport.CrashInfo ci = new ApplicationErrorReport.CrashInfo(data);
boolean res = handleApplicationWtf(app, tag, system, ci);
reply.writeNoException();
reply.writeInt(res ? 1 : 0);
return true;
case HANDLE_APPLICATION_STRICT_MODE_VIOLATION_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
IBinder app = data.readStrongBinder();
int violationMask = data.readInt();
StrictMode.ViolationInfo info = new StrictMode.ViolationInfo(data);
handleApplicationStrictModeViolation(app, violationMask, info);
reply.writeNoException();
return true;
case SIGNAL_PERSISTENT_PROCESSES_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
int sig = data.readInt();
signalPersistentProcesses(sig);
reply.writeNoException();
return true;
case KILL_BACKGROUND_PROCESSES_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
String packageName = data.readString();
int userId = data.readInt();
killBackgroundProcesses(packageName, userId);
reply.writeNoException();
return true;
case KILL_ALL_BACKGROUND_PROCESSES_TRANSACTION:
data.enforceInterface(IActivityManager.descriptor);
killAllBackgroundProcesses();
reply.writeNoException();
以上是关于Android开发者，必须知道的并且没有遇到的异常，附带简单的解决方案和异常过程源码的分析从java层到Jni层的主要内容，如果未能解决你的问题，请参考以下文章