# 找到视图页面 pageSource = self.driver.page_source n = pageSource.find("\n")+1 pageXml = pageSource[n:] # 转xml tree mytree = lxml.etree.XML(pageXml) result = mytree.xpath('//*[contains(@text,"错误代码")]') for a in result: tree = lxml.etree.ElementTree(a) xpath = tree.getpath(a) view = self.driver1.find_element_by_xpath(xpath)
public static void loop() { final Looper me = myLooper(); if (me == null) { throw newRuntimeException("No Looper; Looper.prepare() wasn't called on this thread."); } final MessageQueue queue = me.mQueue;
// Make sure the identity of this thread is that of the local process, // and keep track of what that identity token actually is. Binder.clearCallingIdentity(); final long ident = Binder.clearCallingIdentity();
for (;;) { Message msg = queue.next(); // might block if (msg == null) { // No message indicates that the message queue is quitting. return; }
// This must be in a local variable, in case a UI event sets the logger final Printer logging = me.mLogging; if (logging != null) { logging.println(">>>>> Dispatching to " + msg.target + " " + msg.callback + ": " + msg.what); }
final long traceTag = me.mTraceTag; if (traceTag != 0 && Trace.isTagEnabled(traceTag)) { Trace.traceBegin(traceTag, msg.target.getTraceName(msg)); } try { msg.target.dispatchMessage(msg); } finally { if (traceTag != 0) { Trace.traceEnd(traceTag); } }
if (logging != null) { logging.println("<<<<< Finished to " + msg.target + " " + msg.callback); }
// Make sure that during the course of dispatching the // identity of the thread wasn't corrupted. final long newIdent = Binder.clearCallingIdentity(); if (ident != newIdent) { Log.wtf(TAG, "Thread identity changed from 0x" + Long.toHexString(ident) + " to 0x" + Long.toHexString(newIdent) + " while dispatching to " + msg.target.getClass().getName() + " " + msg.callback + " what=" + msg.what); }
boolean enqueueMessage(Message msg, longwhen) { if (msg.target == null) { thrownew IllegalArgumentException("Message must have a target."); } if (msg.isInUse()) { thrownew IllegalStateException(msg + " This message is already in use."); }
synchronized (this) { if (mQuitting) { IllegalStateException e = new IllegalStateException( msg.target + " sending message to a Handler on a dead thread"); Log.w(TAG, e.getMessage(), e); msg.recycle(); returnfalse; }
msg.markInUse(); msg.when = when; Message p = mMessages; boolean needWake; if (p == null || when == 0 || when < p.when) { // New head, wake up the event queue if blocked. msg.next = p; mMessages = msg; needWake = mBlocked; } else { // Inserted within the middle of the queue. Usually we don't have to wake // up the event queue unless there is a barrier at the head of the queue // and the message is the earliest asynchronous message in the queue. needWake = mBlocked && p.target == null && msg.isAsynchronous(); Message prev; for (;;) { prev = p; p = p.next; if (p == null || when < p.when) { break; } if (needWake && p.isAsynchronous()) { needWake = false; } } msg.next = p; // invariant: p == prev.next prev.next = msg; }
// We can assume mPtr != 0 because mQuitting is false. if (needWake) { nativeWake(mPtr); } } returntrue; }
if (app != null && app.thread != null) { try { if ((r.info.flags&ActivityInfo.FLAG_MULTIPROCESS) == 0 || !"android".equals(r.info.packageName)) { // Don't add this if it is a platform component that is marked // to run in multiple processes, because this is actually // part of the framework so doesn't make sense to track as a // separate apk in the process. app.addPackage(r.info.packageName, r.info.applicationInfo.versionCode, mService.mProcessStats); } realStartActivityLocked(r, app, andResume, checkConfig); return; } catch (RemoteException e) { Slog.w(TAG, "Exception when starting activity " + r.intent.getComponent().flattenToShortString(), e); } // If a dead object exception was thrown -- fall through to // restart the application. } mService.startProcessLocked(r.processName, r.info.applicationInfo, true, 0, "activity", r.intent.getComponent(), false, false, true); }
case LAUNCH_ACTIVITY: { Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "activityStart"); final ActivityClientRecord r = (ActivityClientRecord) msg.obj;
private void handleLaunchActivity(ActivityClientRecord r, Intent customIntent, String reason) { ... // Initialize before creating the activity WindowManagerGlobal.initialize(); Activity a = performLaunchActivity(r, customIntent); if (a != null) { r.createdConfig = new Configuration(mConfiguration); reportSizeConfigurations(r); Bundle oldState = r.state; handleResumeActivity(r.token, false, r.isForward, !r.activity.mFinished && !r.startsNotResumed, r.lastProcessedSeq, reason); if (!r.activity.mFinished && r.startsNotResumed) { // The activity manager actually wants this one to start out paused, because it // needs to be visible but isn't in the foreground. We accomplish this by going // through the normal startup (because activities expect to go through onResume() // the first time they run, before their window is displayed), and then pausing it. // However, in this case we do -not- need to do the full pause cycle (of freezing // and such) because the activity manager assumes it can just retain the current // state it has. performPauseActivityIfNeeded(r, reason); // We need tokeep around the original state, in case we need to be created again. // But we only do this for pre-Honeycomb apps, which always save their state when // pausing, so we can not have them save their state when restarting from a paused // state. For HC and later, we want to (and can) let the state be saved as the // normal part of stopping the activity. if (r.isPreHoneycomb()) { r.state = oldState; } } } else { // If there was an error, forany reason, tell the activity manager to stop us. try { ActivityManagerNative.getDefault() .finishActivity(r.token, Activity.RESULT_CANCELED, null, Activity.DONT_FINISH_TASK_WITH_ACTIVITY); } catch (RemoteException ex) { throw ex.rethrowFromSystemServer(); } } } }
