android - Problems understanding the life cycle when screen goes off and on -


Info: My device is a Nexus One with 2.2 and I have tested two projects, one on 1.5 and one on 2.1. <<

Problem: I have trouble understanding the screen and the life cycle of my application.

Here is my output 

  / / activity starts 08-04 17: 24: 17.643: error / play activity (6215): executed on ... 08 -04 17: 24: 17.643: Error / Play Activity (6215): On Resume Performed ... // Screen Shuts Off 08-04 17: 24: 28.943: Error / Play Activity (6215): On Pauses Implemented. .. 08-04 17: 24: 32.113: Error / Play activity (6215): Onest option ... 08-04 17: 24: 32.113: Error / Play activity (6215): execution of On Destory ... 08- 04 17: 24: 32.983: Error / Play Act Viti (6215): Performed on the ... 08-04 17:24 24: 32.983: Error / Play Activity (6215): OnResume executed ... 08-04 17:24 24: 32.983: Error / Play Activity (6215): onPause Execute ... // goes to screen 08-04 17: 24: 47.683: Error / Play Activity (6215): Performed on Honor. .. // locked 0 8-04 17: 24: 56.943: Error / Play activity (6215): On Pauses implemented ... 08-04 17: 24: 59.663: Error / Play activity (6215): Onest option. .. 08-04 17: 24: 59.663: Error / Play Activity (6215): Execution of On Destory ... 08-04 17: 25: 00.943: Error / Play Activity (6215): Performed OnStart ... 08- 04 17: 25: 00.943: Error / Play activity (6215): Execute executed ...

I am completely confused why is the activity restarted when the screen is off? And why stop it and start over again when the screen was already running and only the lock was removed?

To ensure that I have not done anything wrong, I have just created a new project with this activity. Output is equally ... 

  public class extension of LifeCycleTest activity (personal last fixed string DEBUG_TAG = "FirstLifeLog"; Crate on Public Zero (Bundled Saved Instance) {Super. Saved InstantState); log.E (DEBUG_TAG, "Executed on ..."); setContentView (R.layout.main);} Reserved Secure Zero () {Super Log A.A. (DEBUG_TAG, "Perform Onr ... . ");} Start at the protected void {super.start (); log (a.debug tag," ons Performed the program ...);} Secure zero at the reserve () {super.onResume (); log.a (DEBUG_TAG, "Honorsum executed ...");} protected at zero (reason) {super.onPause () ; Log.a (DEBUG_TAG, "On-Paused Implementation ...");} Safe void onStop () {super.onStop (); Log A (DEBUG_TAG, "Onstop execution ...");} Safe void onDestroy ) {Super.onDestroy (); Log A. (DEBUG_TAG, "OndaStra implemented ...");

Do anyone have an idea?

Today Update from (do not understand why it is not the last time, why not If there are more free resources?) 

  // Activity starts 08-09 12: 14: 03.122: Error / First Life Log (15406): On Creation Execute ... 08-09 12: 14: 03.132: Error / First Life Log (15406): Performs Onstart. .. 08-09 12: 14: 03.132: Error / First Life Log (15406): On Resume Performed ... // Screen Shutdown 08-09 12: 14: 07.412: Error / First Life Log (15406): On Pause Executes ... // On screen 08-09 12: 14: 11.722: Error / First Life Log (15406): Performs On Resume ... // No Log for Deleted Screen Lock

See the documentation for a good description of the lifecycle, with diagrams.

With the screen your activity may die, it stops to save resources (battery power). According to the documentation, you can basically kill anytime that Android wants to free resources. Therefore, you should always design your activities so that any time off and restart.


-

Comments

Post a Comment

Popular posts from this blog

Eclipse CDT variable colors in editor -

I hope this is a good question to ask here. This programming is related, so I thought it would be better than the superuser, so I am using the CDT C ++ Eclipse plugin. I know how the editor changes colors for some things But is there a way to do that all the variables are different colors? For example in KDEValue, it sets the local variables and square variables in different colors and bold square squares. Can I copy it to CDT? Eclips provides some level of color customization for text editor syntax You can see it on the following: There are many elements, including the Window> Preferences> C / C ++> Editor> Syntax color code that can be changed, assembly, Comments, Preprocessor and Doxian Under the code, it is possible to change the color of some variable types, such as global variables, local variable announcements, local variable references, and parameter variables. But I do not think the code is capable of changing the color of each variable declared....
Read more

AJAX doesn't send POST query -

$ (दस्तावेज़) .ready (function () {function ajaxselectrss (rssurlvar) {var ajaxRequest; // वेरिएबल जो अजाक्स को संभव बनाता है! कोशिश करें कि {// ओपेरा 8.0+, फ़ायरफ़ॉक्स, सफारी अजाक्स अनुरोध} = नया एक्सएमएलएचटीपीआरइवेस्ट ();} कैच (ई) {// इंटरनेट एक्सप्लोरर ब्राउज़र्स {ajaxRequest = new ActiveXObject ("Msxml2.XMLHTTP");} पकड़ो (ई) {try {ajaxRequest = new ActiveXObject ("Microsoft.XMLHTTP");} कैच (ई) {// कुछ गलत चेतावनी ("आपका ब्राउज़र तोड़ दिया!"); वापसी झूठी;}}} // एक बनाएं फ़ंक्शन जो सर्वर से भेजे गए डेटा प्राप्त करेंगे ajaxRequest.onreadystatechange = function () {if (ajaxRequest.readyState == 4) {var ajaxDisplay = document.getElementById ('news'); ajaxDisplay.innerHTML = ajaxRequest.responseText;}} / / Var rssurlvar = $ (this) .attr ("title"); var queryString = "rurl =" + rssurlvar; var urltofile = "rssget.php"; ajaxRequest.open ("पोस्ट", urltofile, सच); ajaxRequ Est.setRequestHeader ("सामग्री-प्र...
Read more

wpf - Custom Message Box Advice -

Well, I'm using a custom window box that comes with some custom control boxes that accompany the text The producers who are displayed are called. I have a defined event, which has been subscribed through the original class, it gets burnt when clicking on the button. However, I can not see how to use it effectively, I would like to return one yes, whether yes or not, but obviously my code will continue to execute, so this Below is some example code to clarify the problem that the method has subscibed by clicking on the button. Message box window Public partial class custom message box: window {public representative message messagebox object sender, event events e); Public event messagebox handler messagebox document; Public Customs Box () {Initial group (); } Public Customsbox (String Message) {InitializeComponent (); This.txtdescription.Text = Message; } Public Customsbox (String Message, String Title, String First BTNtext) {Initialization (); This.lbltitle.Content =...
Read more