Android :: Remove Static Variable Value , When Will I Close My Activity?
Aug 26, 2010I want to clear variable value when will i close activity.
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Android :: How To Clear Static Variable Values / When Will I Close My Application
Aug 31, 2010I have used some static variable in my application, i want to clear static variable value when will i close my application.anybody know please give solution for that.
View 11 Replies View RelatedAndroid :: Static Variable And Remove The Listener When App Is Closed?
Jul 16, 2009I have some static variables and some registerListeners. Do i need to release them all and remove these listeners?
View 8 Replies View RelatedAndroid :: Static Variable Instantiation
Apr 1, 2009I have noticed in my application(s) that after a call to Activity.finish() that the static variables that I declared in my classes still hold the values that they were changed to during the activity's life cycle. Upon the re-launch of the activity, the program does not re-instantiate the variables as declared or set them to the default java behavior. Is there something that I can do to cause this to happen, other than re-setting every static variable in my application?
View 3 Replies View RelatedAndroid :: Static Variable From Java Class In Res / Values / Styles.xml?
Apr 15, 2010I want to refer to a static Java variable in my styles.xml, is that possible? Here's a pseudo-xml example:
<style name="Artwork">
<item name="android:background">@drawable/border_{Constants.MY_COLOR}</item>
</style>
Android :: Why Should A Variable In Static Method Be Declared As Final In Java
Sep 15, 2010I am having a static method .In the method when I decalare a variable , it was showing an error in eclipse saying that the variable should be decalared as final.
Can I know the reason for this , y should a variable in a static method be declared as final? I am writng an Android application where I should pass as an argument current Context of that application. So, when I pass the current context to the method and trying to copy it in a local variable , I am getting this error saying that the variable should be declared as final.
My method is like this:
CODE:.............
Error is showing at line where Context myctx=ctx; is declared and asking me to declare it as final.
Android : How To Use Variable While Calling New Activity In Intent?
Feb 2, 2010Can any one guide me how to achieve this?
View 4 Replies View RelatedAndroid :: Best Approach For Making One Variable Available In Another Activity / Class?
Jun 22, 2009I have tried to understand for the past 2 days what is the best approach to making the value from a variable sitting in activity A (in my case, the int position used in OnListItemClick / OnItemSelectedListener) available in another activity B (which of course sits in another class). There may be the option to write the result of the OnListItemClick int position into a small SQLite DB - but that seems to be total overkill.
Anybody could pls share the best approach with me?
General :: How To Remove Music Static In CM7
Feb 23, 2012i got a problem with cm7 after installing it. when i stop playing mp3s, the first thing i hear is static. i dont know why. i noticed that DSP manager is installed which is an equalizer. i had it both enabled and disabled. either way the music is still staticy. is there a way to get rid of this static?
View 5 Replies View RelatedAndroid :: How To Close Fore Ground Activity From Active Activity?
Sep 28, 2009I created an application which is asynchronously communicating with the server. When the application makes a server request a new dialog (activity) with "loading" notification is created. The main activity implements methods for handling server responses and I would like to close the foreground activity when the main activity receives the answer from the server.
View 1 Replies View RelatedAndroid :: Can I Access A Member Variable Of Current Running Activity In Droid
Jul 29, 2010I have an Android activity running with a custom view in it. When something happens within that custom view, I want to tell the currently running activity by changing one of the Activity member variables. Is there a way to access the current running activity member variables from within a custom view class besides passing the activity into the view class though a function arg?
View 1 Replies View RelatedAndroid :: Static Layout For Whole App That Must In All Activity
Nov 17, 2010Static Layout for whole app that must be in all Activity
View 12 Replies View RelatedAndroid :: Use Of Static Finals In Activity
Sep 8, 2010Why is the use of static final variables encouraged to declare constants over just final variables? The use of static sounds logical when there will be many instances of a class but is this argument correct when used for a Android activity. In fact, since the Class instance will be around even after the activity finishes and is eventually garbage collected, it seems like all these constants will still be in memory until the class loader is around. Also, does the compiler inline non-static final variables(ints and String) just like it does for static final variables?
View 2 Replies View RelatedAndroid :: Changing Variable Affects Indirect Variable (value Vs Reference)
Sep 26, 2010Is copying the reference to the object and not the value of the object. Meaning, when I modify pos.top or pos.bottom, the original object gets modified. I'm guessing I am missing a concept of pass object by reference vs value here which I thought I understood. What is the fix here? Is it a problem with how I defined my custom class?
View 2 Replies View RelatedAndroid :: Static Database Class To Use With Any Activity
Jan 5, 2010I am new to Android, and I haven't developed any app regarding databases on Android yet. So I have a few basic questions. I am after a good database class sample, that will let me to run the CRUD operations. I would like to use it as a static class
like: clsDB->Select("select * from clients");
or objClient->Delete(clientid);
I am wondering if someone, can share his database classes, if more people share the best. Also I have in mind to reuse this class in multiple ways, I will have services, activities etc...
Android :: Avoid Non Static Inner Classes In Activity?
Jun 17, 2010Since I seem to have caught two activity references in a heapdump, where the Activity is set to singleTask. Romain's advice on avoiding memory leaks includes: "Avoid non-static inner classes in an activity if you don't control their life cycle, use a static inner class and make a weak reference to the activity inside"
What does this mean exactly? I can't find any examples, positive, or negative for this rule. I do have some non static inner classes in my activity. Most of them are anonymous inner classes like this one. I see hundreds of them in the samples:....................
Android :: Activity Lifecycle And Static Variables
Jul 14, 2009I just ran into a situation where it looks like a static variable reference is persisted across activity sessions. I didn't expect that because I thought that when an activity exits, it's de-referenced and garbage collected. I am wondering if anyone can shed some (more) light on when the VM eliminates object references for Activities and Services and in particular when static variables get reset to default values?
View 7 Replies View RelatedAndroid :: How To Use URL Variable To Load Webview ? Not Using String Variable
Nov 3, 2010these is how to give a string as argument String link ="http://www.adobe.com /devnet/acrobat/pdfs /pdf_open_ parameters.pdf"; webview.loadUrl(link);But how to give an "URL" variable to load its content to webview.
View 1 Replies View RelatedAndroid : Close Activity A That Invoked Activity B?
Jul 15, 2010Is there any way to close the activity the launched another activity? So if activity A starts activity B can activity B close activity A? I know there is the tag android:finishOnTaskLaunch="true" but i only want it to happen if a button is pressed so im looking for a method to do it.
View 10 Replies View RelatedAndroid :: Create Static Options Menu For All Activity Screens
Jan 15, 2010I wanted to create a static options menu for all my activity screens. I dont want to override onCreateOptionsMenu() in each activity. Since Menu class is an interface with a huge number of methods, its difficult to create a static object of the implementing class.
View 3 Replies View RelatedAndroid :: Accessing Inner Variable From Outer Class Method In Android Activity
Aug 31, 2010I m doing some task with following code,
I want to access inner class variable from outer class method.
class Outer extends Activity
{private Handler mHandler = new Handler();
StopTheThread()
{mHandler.removeCallbacks(mUpdateTimeTask);//
This is the what I want to do:
} class Inner
{ final Runnable mUpdateTask = new = new Runnable() {
public void run() {
//Some Code Goes Here
} };
InnerClassMethod()
{ mHandler.removeCallbacks(mUpdateTimeTask);//
This statement working fine here. Here mUpdateTask is inner class variable which is not accessible from outer class.
Android :: Static Fields In Activity Classes Guaranteed To Outlive Create / Destroy Cycle?
Oct 28, 2009I frequently run into the problem that I have to preserve state between several invocations of an activity (i.e. going through several onCreate()/onDelete() cycles). Unfortunately, Android's support for doing that is really poor. As an easy way to preserve state, I thought that since the class is only loaded once by the class loader, that it would be safe to store temporary data that's shared between several instances of an activity in a static Bundle field. However, occasionally, when instance A creates the static bundle and stores data in it, then gets destroyed, and instance B tries to read from it, the static field is suddenly NULL. Doesn't that mean that the class had been removed and reloaded by the classloader while the activity was going through a create/destroy cycle? How else could a static field suddenly become NULL when it was referencing an object before?
View 2 Replies View RelatedAndroid :: Instance Variable Of Activity Not Being Set OnPostExecute Of AsyncTask - Return Data From AsyncTask
Jul 28, 2010I'm trying to figure out the correct way to create an AsyncTask to retrieve some data from the internet and then to take that data and bundle it up in an Intent and pass it to a new activity(A list display). So in the first activity I just have an EditText and Button. In the event of an OnClick the task should be called and when it is finished the data should be bundled inside an Intent and passed to the next Activity. The problem is when I take the results from onPostExecute and set them to an instance variable of the main activity, that instance variable is still null when the task is complete. Here is the barebones version of the code:
CODE:...........
When I debug the application I see onPostExecute does contain a valid PlacesList full of results, so why is the instance variable places set to null after the task is executed? I am going about "returning data" from an AsyncTask incorrectly?
Android :: Call Non Static Method In Static SQLiteDatabase Class
Mar 30, 2010i want to display a msg to the user (msg box or Toast) when exception happend in a static SQLite Database class that i use. the problem is that i cant call a non static method in a static class , how can i handle this. this is the class
private static SQLiteDatabase getDatabase(Context aContext) {
and i want to add something like this in the class when exception happen but context generates the problem of reference to non static in static class.
Context context = getApplicationContext();
CharSequence text = "Hello toast!";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
Android :: Cannot Make Static Reference To Anon-static Method
Feb 7, 2010I'm having some issues with the old "Cannot make a static reference to a non-static method" error in my Android program. I am creating a sand falling game (similar to the Powder Game) and I created a class called Control to create a Control Bar at the bottom of the screen with a slider for brush size (that works fine) and a button to pop up a Dialog to allow users to pick the selected element. However, when I call DemoActivity.showDialog(2) from my code, it gives the static reference to non-static error (DemoActivity is the main activity of my application). I also tried changing it to just Activity.showDialog(2), but I got exactly the same error!
Here's my code:
CODE:................
I fixed it by adding the following to my Control.java code:
CODE:..........
And then calling control.setActivity(this); from my onResume section of DemoActivity.java!
Android :: Remove Notification When Force Close Message Occurred
Aug 11, 2010I am displaying a notification when app running. For any reason app showed force close message, which closes the app after clicking the force close button, I need to remove the app icon from notification area.
View 1 Replies View RelatedAndroid :: Non-static Method Cannot Be Referenced From A Static Context
May 26, 2010I am modifying the source code here: http://thinkandroid.wordpress.com/2009/12/30/getting-response-body-of-httpresponse/
I get this error:
code:.............
This error is line 13 on the second box.
Android :: Can Close Other Activity?
Aug 4, 2009I have three activity now, a, b and c, a is start point of activity lifecycle, and can go to b or c, and then assume go to b from a and close a, and then go to c from b but will not close b, and this time, I want to check whether b is start(create) or not,
if b start, I want to close b and then go to a, if b doesn't start(possible will go to c from a doesn't via b), it will also go to a but do nothing for b
how can I do for that?
Android :: Way To Close Activity
Jun 23, 2009I have a app,the structure composed three .java, 1.java,2.java,3.java
their relationship is: 1->2->3 and 3 can go back to 1
when i was back to 1 from 3, i want to close the 2, how to do this?
Android :: Finish() Won't Close Activity
Jul 23, 2009I have an EditText field and I want to pop up a new window/activity whenever a user touches/clicks the field. The new window has some widgets and of course Apply and Cancel buttons. Here is the code how I intercept the onTouch event.
EditText ctlMaskEt = (EditText)findViewById(R.id.mask_field); ctlMaskEt.setOnTouchListener(new OnTouchListener() { public boolean onTouch (View v, MotionEvent event) { popMaskEditor(); return true; } });
Everythings work fine until I click the Apply and Cancel buttons. The API finish() won't close the new window unless I click the same button one more time. Calling popMaskEditor() from a button's OnClick event handler doesn't have this problem.