Android : How To Use Variable While Calling New Activity In Intent?
Feb 2, 2010Can any one guide me how to achieve this?
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Android :: Update Intent Of An Existing Activity While Calling StartActivity
Sep 13, 2010I am having two activities, say activity A and B. Activity A is an ListActivity, and when the items in the list is selected, it will call startActivity() to bring up B. The problem here is that when I am in B and click the home key, and then go to the application launcher to resume my application, A will be brought up again. This time when I click a different item in A, it will bring up B with the old data of the previously selected item before the home key was clicked.
After examinzing the code, I found that the startActivity does not update the intent of B. I found a post here about the similar question, and the answer was to overwrite the onNewIntent. However, I found that it doesn't work, because this method never get called when the second time I call startActivity. I am sure that this is the same instance, because I've printed out the instance number. Is there any other ways to update the intent of the activity? Or I need some other settings to make the onNewIntent get called? I didn't set any flags or launch modes, so everything is default.
Android :: Calling An Intent The Implicit Way
May 21, 2009I`m trying to develop an application, just to test the ability of android to call an activity with an intent based not in the specific class name but specifying the action, category and data information. Acording to this link
http://developer.android.com/guide/topics/intents/intents-filters.html
only three aspects are consulted when comparing an intent object to select the future activity to run. I created two android projects (and two activities), the first is the main project who sends the request and the second can be called directly or through the filter. This is the call of the activity in the main project:
CODE:..................
This is the part of the manifest that specifies (or at least I try to specify) in the secondary activity that it`s available to be selected to run with that information:
CODE:...............
I installed both separatelly and I was expecteing to see the second activity after the called but instead I got an ActivityNotFoundException. By the way if I comment the t3.addCategory (Intent.CATEGORY_HOME); line and change the t3.setAction (Intent.ACTION_EDIT); to t3.setAction(Intent.ACTION_VIEW); the browser is executed so I think the problem is in the manifest of the second activity.
Android :: URL Commands When Calling Youtube Through Intent?
Jul 12, 2009The standard Youtube URL commands (&loop, &rel, etc) do not seem to work when calling Youtube via an INTENT from inside the android application. The videos play fine, Youtube app comes up fine, but the additional URL commands don't appear to work. Is there another set of commands I should be using or are commands simply ignored using Youtube in this manner. Also, is there any documentation on the interface from android to the Youtube app available on the net?
View 3 Replies View RelatedAndroid : Droid Calling Intent From Another Class?
Jun 29, 2010I am calling intents alot in my program and I thought that I could write a public class that would have all of my intents so I can just call something like intents.testIntent(params) and then have it fire off the intent.
I tried it out but am getting a force close with a null pointer exception. This is my whole class. I know it is probably sloppy but I have just been learning java for 2 months so I still am an amateur. Any way, my code...
Android :: How To Get Calling Activity Instance From Called Activity?
Jul 9, 2010I have a Contact Activity which is derived from ListActivity, which displays list of contacts, and on click of item, a new Activity Message Activity derived from ListActivity is initialized.Now I know, I can pack some information in Bundle and pass it before creating activity, but is there a way I can get instance of "ContactActivity" in onCreate method of "MessageActivity"?
View 1 Replies View RelatedAndroid :: Calling Intent.getStringExtra() Throws StackOverflowError Periodically
Jan 25, 2010I have an android application that I am supporting and after calling one of the activities numerous time, it throws a stackoverflowerror when trying to get the extras from the intent. Here is the the stack trace from when it crashes. Any ideas as to why after calling the activity at least 4 times the next time throws StackOverflowError when getting the extras from the intent?
The code used to build the intent is and contains String, String, boolean, Object:
CODE:....................
And the code that is throwing the StackOverflowError is:
CODE:.........................
Android :: Remove Static Variable Value , When Will I Close My Activity?
Aug 26, 2010I want to clear variable value when will i close activity.
View 1 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?
Android :: 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 :: Exclude Own Activity From Activity.startActivity - Intent
Oct 17, 2010My app works with pictures. It can take multiple pictures as an input, process them, and send them again to another app.
As a consequence, my main Activity has declared an intent filter on ACTION_SEND_MULTIPLE for image/* mimetypes and can result in issuing a new Intent with the same action and data type using Activity.startActivity(Intent).
Is there a way to exclude my own activity from the list of apps that is displayed to the user after the startActivity() call ?
Android :: 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 :: 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 :: 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 :: Calling StartActivity From Outside Of An Activity
Dec 7, 2009I have a TabActivity subclass that attempts to start a new activity via a menu item selection in onOptionsItemSelected.I am receiving the following exception which eludes me at the moment.I'm not sure why it thinks I am *not* in an activity!
View 2 Replies View RelatedAndroid :: Calling Activity From Service
Nov 19, 2010i am writing an app in which i need a background service to call an activity and show some result.
View 4 Replies View RelatedAndroid : Error While Calling An Activity From Another / How To Fix
Apr 4, 2010me and my partners are working on developing a pwa client for android Am getting an error while calling an activity from another activity.the error is as follows...
View 3 Replies View RelatedAndroid :: Handle Existing Instance Root Activity Launching Root Activity From Intent Filter
Apr 3, 2010I'm having difficulties handling multiple instances of my root (main) activity for my application. My app in question has an intent filter in place to launch my application when opening an email attatchment from the "Email" app. My problem is if I launch my application first through the the android applications screen and then launch my application via opening the Email attachment it creates two instances of my root activity. steps: Launch root activity A, press home Open email attachment, intent filter triggers launches root activity A Is it possible when opening the Email attachment that when the OS tries to launch my application it detects there is already an instance of it running and use that or remove/clear that instance?
View 1 Replies View RelatedAndroid :: Need To Take Into Account When Repeatedly Calling Same Activity?
Oct 28, 2010I am developing an app where a single activity is instantiated multiple times by itself. I guess you could think of it like a book where each activity is a page. At the end of the page (activity) the user presses a button to go to a new page. I fire off an Intent for the same Activity, but I push different data into the Bundle so that a different page is loaded. This works fine, and I like the fact that the user can back up to a previous point, but my question is whether this will eventually be a problem? What happens if this activity is instantiated 10 times, or 50, or 100? Will the device run out of memory, will GC come along and clean up old activities, or what? If GC does clean them up, what happens when the user presses Back and the previous Activity is no longer on the stack? Is it better to keep track of the user's path, finish() the activity, and override the Back button so that whether the user is moving forward or backwards, I only load a single Activity? Another approach I could take is to refresh all the data on the page so that it's still the same activity, but with new data. The Back button would not work as expected in this case.
View 2 Replies View RelatedAndroid :: How Can I Show My Activity On Top Of In-calling Screen?
Apr 23, 2010I'm writing an android application which listens the phone calling events. What I want to do is, if there is a call incomes or outgoes, an activity shows with my customized info.I want to this screen keeps showing during the calling period. However, if a call is coming, the system UI which shows the contact always appears on top of my activity.I've found some apps already realized this function, but mine can't.
View 1 Replies View RelatedAndroid :: Calling StartActivity From Outside Of An Activity - Getting Error
Sep 11, 2010I'm using an AlarmManager to trigger an intent that broadcasts a signal. The following is my code:
CODE:................
I'm calling this code from an activity, so I don't know how I could be getting the following error...
CODE:....................
Is this really what you want?
Android :: Calling StartActivity From Outside Of An Activity Context
Oct 12, 2010I have implemented a ListView in my Android application.
I bind to this ListView using a custom subclass of the ArrayAdapter class. Inside the overridden ArrayAdapter.getView(...) method, I assign an OnClickListener. In the onClick(View v) method of the OnClickListener, I want to launch a new activity.
I get the exception:
Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want?
How can I get the context that the ListView (the current Activity) is working under?
Android :: Calling Finish() After Starting A New Activity
Apr 26, 2010The first Activity that loads in my application is an initialization activity, and once complete it loads a new Activity. I want to ensure if the user presses 'Back' they go straight to the Launcher, and not the initialization screen. Side note, is this even the best approach, or would this be better done with some kind of Intent Flag?
Is it correct to call finish() after calling startActivity() on the new activity?
CODE:...................
I'm still taking in the whole 'Message Queue' method of doing things in Android, and my assumption is that calling startActivity() and then finish() from my first Activity's onCreate() will log each respective message in the message queue, but finish execution of onCreate() before moving on to starting the next Activity and finishing my first one. Is this a correct understanding?
Android :: 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 :: Translucent Activity Not Calling OnStop On Exit
Dec 3, 2009I'm having this strange issue where upon exiting a subactivity that is translucent (android:theme="@android: style/Theme.Translucent" ) the onStop() method doesn't appear to be called. have a TimerTask that runs and is supposed to be terminated when the subactivity ends in the onStop() method, but I'm instead left with an orphaned thread running in the background. It go particularly bad when I ran the subactivity several times. When I revert to no theme, the onStop() method is called and the activity behaves properly. Is there something I missed about how Translucent activities'lifecycles differ from standard activities?
View 4 Replies View RelatedAndroid :: Passing Array By Calling Activity From A Thread
Jul 23, 2010I have two activities:
"a" that spawns thread for generating a dynamic array of values inside public void run() function.
"b", graphics activity that will help me draw rectangular pulses based on array values calculated in activity "a" (calculated in a's thread to be precise).
When I am in thread inside "a", how do I pass values of array to activity "b" and
call activity as well.
activity A
CODE:..........
activity B
CODE:..............
Android :: How To Upload Image Taken By Calling Camera Activity?
Jul 1, 2010I have an image which is taken from andorid by calling image _capture how do i upload it to a windows server?
View 1 Replies View RelatedAndroid :: 1.5 And 1.6 After Calling Finish Activity And Home Button
Jan 12, 2010I open splash screen at the end i call finish() then i moved to browse page. At the browse page when i click on home button it hide the application.(b/c of Android's Multi tasking feature) When i go to Android's desktop launch application again it starts from splash screen. Android Platform 1.6
I open splash screen at the end i call finish() then i moved to browse page. At the browse page when i click on home button it hide the application.(b/c of Android's Multi tasking feature) When i go to Android's desktop launch application again it always starts from browse screen instead of splash screen why is that..............
Android :: Free Up Memory By Finishing An Activity After Calling Another?
Feb 25, 2010Hopefully the title wasn't to confusing but what I meant was the following:
Lets say activity A starts activity B by calling:
Intent myIntent = new Intent(Activity_A.this, Activity_B.class);
Activity_A.this.startActivity(myIntent);
Could I save/free up some memory by finishing Activity_A after Activity_B is begun (if thats even possible). Maybe through the following:
Intent myIntent = new Intent(Activity_A.this, Activity_B.class);
Activity_A.this.startActivity(myIntent);
Activity_A.finish();
Or would Acitivty_A call startActivity() and wait for Activity_B to finish before it called finish()?
The idea would then be that when the users end with Activity_B, it would just restart Acitivity_A (and finish itself in a similar fashion)? Would this create too much overhead? Thanks for any answers and I apologize if the formatting of this post isn't correct.
Android :: When Does Activity Object Really Get Killed After Calling Finish()
Nov 5, 2010I created a thread in my activity, and that thread will print out the value of my instance variables in my activity after running for about 10 seconds. I pressed the back key to destroy my activity before the thread prints out the values, and when the thread reaches that line of code, it can still print out the values correctly. That means even though the activity is finished, the java object of the activity is still there. Will the object always be there? Or it is just waiting to be GCed? Or it will be killed only when Android needs memory?
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