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Two sleep methods for thread &ANR (process/Service not responding)

1 Try {2 Thread.Sleep (+); 3 Catch (interruptedexception e) {4 e.printstacktrace (); 5 }6 method2:SystemClock.sleep (+);ANR (application not responding) on Android, if the application has been unresponsive for some time, a dialog box is displayed to the user called the application is unresponsive (anr:application not Responding) dialog box. The user can select wait to keep the program running, or force close. So

Avoid the use of unresponsive methods in Android development (application not responding, ANR) _android

The worst thing that happens in the app is the pop-up application no response "application not Responding" (ANR) dialog box. This lesson is about how to keep application responses and avoid ANR.What triggers ANRTypically, the system displays ANR when the application cannot respond to user input. For example, if an application blocks a (frequently requested network) UI thread on I/O operations, the system ca

Android ANR exception and how to fix it

Today interview encountered this problem, just at first did not see the meaning of the ANR abbreviation, and then asked the interviewer originally this means: Anrs ("Application Not Responding"), meaning "app is not responding". In the following cases, Android will report a ANR error: – The main thread ("Event processing Thread"/"UI thread") does not respond to input events within 5 seconds –broadcastrece

[Forwarding]android System Stability-ANR (iii)

Articles are original, reproduced please indicate the source, without permission and the misappropriation of legal liability.It was written a long time ago, and it's a little wasted and shared.Written by: Li Wendonghttp://rayleeya.iteye.com/blog/19560561.4 How to avoid ANR1.4.1 ANR occurs in the main thread, do not block the main threadAll standard components of an Android application run in a single main thread, and any time-consuming operations in t

ANR Analysis _anr

Analysis steps 1. __exp_main.txt see that process appears ANR, find the process ID 2. Sys_android_event_log search "Am_anr", if multiple, the process ID obtained through step 1 to distinguish which one is needed, and then can find the corresponding point in time 3. Swt_jbt_traces search appears ANR process ID, if there are multiple stacks, then step 2 to obtain the point of time to confirm which one is

Android Anomaly and performance optimization related interview questions-anr abnormal interview questions

What is ANR?Application Not RespondingThe main cause of ANR:The responsiveness of the application is monitored by the activitymanager and WindowManager system services, which can cause the ANR to be monitored when the main thread in the activity clicks more than 5 seconds to respond or if the wood responds in the broadcast UI thread for more than 10 seconds. Here's a list of the details: The main t

Android two common errors (ANR and FC) solutions

ANR (Activity not Respone) (no response) Introduce the next main thread (also known as the UI thread, the main threaded) Features: 1. Creating UI Controls 2. Updating UI control state 3. Event handling Limitation: The main thread does not recommend events that have more than 5 seconds Conditions to appear: The ANR dialog box pops up when the user input event 5s does not get a response Broadcast recipient'

What is ANR? How to avoid it?

ANR:Application Not responding ( application unresponsive ). When the following conditions occur, Android it will show ANR dialog box:Response to input events (such as keystrokes, touch-screen events) exceeds 5 sec Intent Receiver (intentreceiver) The second is still not finishedThe Android app runs completely in a separate thread . This means that any running in the main thread,Operations that require a significant amount of time will cause

Android & IOS Third party Crash ANR capture upload

1. buglyAddress: http://bugly.qq.com/Offers: Professional crash (crashes), Android ANR (Application not response), iOS-Walton monitoring and solutions. Discover the crash (crashes), Android ANR, and iOS Leighton that users are using, and quickly locate and resolve issues based on reported information.Cost: free, and can provide an exact location to a user's exception (this is charged in testin)1 crashreport

Android ANR Analysis Solution

13:12:11 04-01. 572 I/InputDispatcher (220): Application is not responding: Window {2b263310com. android. email/com. android. email. activity. splitScreenActivitypaused = false }. 5009.8 ms since event, 5009.5 ms since waitstarted 04-011:12:11. 572 I/WindowManager (220): Input event dispatching timedout sending tocom. android. email/com. android. email. activity. splitScreenActivity 04-01 13:12:14. 123 I/Process (220 ): Sending signal. PID: 21404 SIG: 3---time when the anroccurs and time when tr

Android Performance Optimization--anr

One, ANR (application not responding) (responsiveness by Activity Manager and window manager monitoring) classificationService Timeout 20sBroadcastqueue Timeout 10sInput dispatching 5sSecond, the cause of the ANRThe main thread has done some time-consuming workThe main thread is locked by another thread (the resources required by the main thread are being used by other threads)CPU is occupied by other processesThird, how to solve the ANR1. Main thread

ANR in Android

ANR ("application not responding"), which means "the application has no response ". Android reports an ANR error in the following cases: -The main thread (event processing thread/UI thread) does not respond to input events within 5 seconds. -Broadcastreceiver does not return results within 10 seconds. 1. Perform network operations in the main thread 2. Perform some slow disk operations in the main thread (f

Avoid ANR in Android Development

ANRs ("Application Not Responding"), which means "Application has no response". Android reports an ANR error in the following cases: -The main thread ("event processing thread"/"UI thread") does not respond to the input event within 5 seconds. -BroadcastReceiver does not return results within 10 seconds. Normally, the following operations will cause ANR 1. Perform network operations in the main thread 2. Pe

Android notification bar ANR reason

Sometimes, we keep sending a notification. If the number of notifications reaches a fixed limit, the notification bar may disappear (Android system lower than 3.0). This problem is actually a bug in Android, next I will analyze the cause of this problem.I. Reasons When this problem occurs, we analyze the log and learn that,Com. Android. systemuiThe ANR is in progress because it times out when processing broadcast messages, and this

View deadlocks through ANR

Deadlock is usually hard to find. However, in androidwe can send anr.txt to traces.txt. In traces.txt, you can view the threads in wait. Of course, the deadlocked threads are also in it. This provides great convenience for searching for deadlocks. Note: After the method is ANR, the following file data \ anr \ traces.txt will be generated on the mobile phone. The following example is provided. File 1 DeadLoc

Causes of ANR abnormal and its solutions

Anrs ("Application Not Responding"), meaning "app is not responding".In the following cases, Android will report a ANR error:– The main thread ("Event processing Thread"/"UI thread") does not respond to input events within 5 seconds–broadcastreceiver did not complete the return within 10 secondsTypically, the following practices can cause the ANR1. Network operation within the main thread2. Perform some slow disk operations within the main thread (for

Android ANR exceptions and Solutions

Anrs ("application not responding"), which means "application has no response". Android reports an ANR error in the following cases: -The main thread ("event processing thread"/"UI thread") does not respond to the input event within 5 seconds. -Broadcastreceiver does not return results within 10 seconds. Normally, the following operations will cause ANR 1. Perform network operations in the main thread 2.

JPA cache results in the inability to query to the updated data &android a solution to the ANR occurrence

1. After updating the records to the server query, always query the updated informationCan only be found before the update, it is immediately inferred that the problem of caching. Search on the Internet, the problem is targeted to the JPA cache, we want to set the JPA query is not taken from the cache, directly from the database, so that the query to ensure that the results are up-to-date, but performance may be affected. Reference: Https://en.wikibooks.org/wiki/Java_Persistence/Caching#JPA_2.0_

[Vigilance] Android ANR caused by synchronized

multithreading is convenient, but improper use may cause many problems, for example, the following example: Package COM. example. anrtest; import android. app. activity; import android. OS. bundle; import android. util. log; import android. view. view; import android. view. view. onclicklistener; import android. widget. button; import android. widget. toast; public class mainactivity extends activity {private byte [] Lock = new byte [1]; @ override protected void oncreate (bundle savedinstances

Website performance analysis (bottom)-Let the website load concurrently but perform JS website performance analysis in sequence (bottom) -Let the website load concurrently but execute Js in sequence

ArticleDirectory How to embed and use head. js Load multiple JavaScript files at one time in head. js. CSS functions of the browser How to use head. js to make css3 display different resolutions on different browsers HTML5 support for the earlier version of IE browser If the website does not support JavaScript, complex functions will not work properly. During development, several scripts are usually written in the header of

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