android - What happens when all activities of an application finishes? -

-

Scenario:

In my Android application I have four activities, A, B, C and D . To maintain global application status, there is a constants.java class in the app that increases the applications class. In the stable class, all the constant variables in the app are the activity flow such as a -> b -> c -> D when the back button is pressed from Activity A, then I call the Finnish () which will end the activity and close the application. After this if I'm opening the app from all apps, then there is a variable in Constants.java , which is the value of the last launch. The same thing is not happening when I System.exit (10) after Process.killProcess (Process.myPid ()) Activity A (pressed back)) .

Question:
  1. Eliminating all the activities and terminating all the activities will stop the application (its process)?
  2. How does the value of a variable remain even as long as all its activities are completed (closed)?
  3. Is it appropriate to call system.exit (10) to exit the application process? Process.killProcess (Process.myPid ())

    Update:

    How do I clear an application stent from exiting the application (back activity of homeactivity)?

    1) No, Android does not guarantee much, depending on the OS to decide whether Whether to finish the process or not.

    2) Because activity example still remains in Dalvik VM. Each process in Android has a separate Dual VM.

    Each process has its own virtual machine (VM), so the code of an application runs in isolation from other applications.

    When you call the end () , it does not mean that activity is example collecting garbage. You are saying to Android that you want to close to activity (do not show it anymore). It will still exist or if the decision to kill the Android process and then terminate the DVI, the garbage is collected.

    When the components of any application are started when the Android process is executed, then the process closes when it is not needed or when the system is not available to other applications. Should recover the memory. 3) Unless you have a very strong reason, I do not do it. As a rule of thumb, you should handle Android to kill your application, unless there is anything in your application situation, which requires an application reset when the focus is lost.



Comments

Post a Comment

Popular posts from this blog

excel vba - How to delete Solver(SOLVER.XLAM) code -

-
After opening several examples of macro / code written, I suddenly get stuck with a code that seems safe. Solver (SOLVER.XLAM) is doing this notation and I would like to remove it from my system. I do not think this is a relativant code. Can anyone tell me what should I do? I have already installed something to remove the password but Solver is still asking for password and I can not get rid of it! itemprop = "text"> Solver Excel is add-in If you want to delete it, then Excel Application & gt; Options & gt; Add-ins & gt; Search for 'Go to' button and gt; Uncheck the solver on the list like press something (I can not give you the exact path because I have the Polish version of Excel). Trying to open Solver's VBA code is not good because it There is allegedly copyright. Besides, I do not think Solver creates any disadvantages while working with Excel or VBA.
Read more

jsp - Google line chart x-axis shrinks on transition -

-
I am using a Google line chart on my page, which refreshes every 5 seconds but weird thing It is that every refresh chart causes the line to be removed, although the size of the chart remains the same. My script - google.load ('visualization', '1', {package: ['corechart']}); Google.setOnLoadCallback (drawLine); // call clickChart when the google.load () function meets the drawLine () {var gaugeData = new google.visualization.DataTable (); GaugeData.addColumn ('string', 'time'); // X-axis gazeta.dk column ('number', 'memory'); // Y-axis gazedata.edc column ('number', 'cpu'); // Y-axis square gauge option = {title: 'system description'}; // tile of var gauge chart; Var tempArray; // store json object value from server var tempArray2; // Server gauge = Modify the json object value = new google.visualization.LineChart (document.getElementById ('line_chart_div')); SetInterval (function () {$ aja...
Read more

java - Reaching JTextField in a DocumentListener -

-
So, I ended up making a Sudoku Solver, but I want to improve it. To do this, I need to reach betterJTextField to documentListener . I am using a documentListener to read from my betterJTextFields in real-time, I have the problem that insertUpdate (DocumentEvent e) . I need to reach Better Zest Field that happened to DocumentEvent . For example, if invalid input, would be better zestfield turn red etc. I have all my better zestfield in the matrix if you should know. Each area handles a number in the Sudoku. @ Override public zero inserted (DocumentEvent e) {// Code removed which checks that the input in the fine zest field is OK. } ( JFormattedTextfield extended JTextField ) public class betterJeststeffiledJFormattedTextField {private int row; Private int column; Public BetterJustStस्टfield (format format, infinite row, EIT column) {super (format); This.row = Line; This.column = Column; // To-O Auto-Generated Constructor Stub} Public Ent Miller () {ret...
Read more