I am encountering an exception in the onCreate method of an activity.
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The onCreate method is as below.
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The layout view XML is as below.
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I've already changed the ID of the ExpandableListView to "list". But it is not effective.
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I use sdk 1.5 version and same to my handphone, my handphone is use G1. Now i test my application on my handphone. When i push on keyboard, i found system will destroy current activity(execute onDestroy() method) and execute onCreate() method again. So i will all current status and all datas. I don't wish this happen, how to block system execute onDestroy() and onCreate() when i open and close keyboard?
View 2 Replies View RelatedIn my android app I call the voice recognition in my onCreate method of my startup activity. I have made it a preference to start up with the voice control or not. However, the app takes about 5-7 seconds to load when voice recognition is on. When it is off, the app starts almost instantly. Below is sample code, I have added Free_Form, max_results 1, and a custom prompt to mine.Why would calling the normal android speech recognition take sooo long to load in my OnCreate method?
View 1 Replies View RelatedI'm having a hard time resolving a crash report. It's an OutOfMemory exception that occurs during the setContentView in the onCreate of my main activity.
I just want to be sure I understood Android LifeCycle well :
1) The onCreate of my main activity is called once and only once during the life time of my application ? Is that correct ?
2) Just like for the big bang, before the oncreate of my activity, nothing exists for that activity, so memory consumption is zero, no objects exists right ?
So what can cause that sometimes, with random framework and devices, I get an OOM exception ? I mean if say my background image is causing this, it should blow up everytime, on every device, shouldn't it ? I mean the result should be reliable.
The background image is a standard jpg : 360*480 weighing 37kb, nothing fancy really :s
The crash report below :
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Maybe my question might seem a bit weird, but I have an activity in which, in one case , I have to move to another activity before it finishes loading the screen. My condition is in the onCreate method, which means when I encounter it, i get a "startActivity called from outside an activity context" error and the app just crashes. But then, is there an easy way like a flag for the intent to make it work without having the activity context resolved?
View 1 Replies View RelatedI slapped together a simple test application that has a button, and makes a noise when the user clicks on it.
Here are it's method:
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My question is, why is onCreate acting like it's in a while loop? I can click on the button whenever, and it makes the sound. I might think it was just a property of listeners, but the Button object wasn't a member variable. I thought that Android would just go through onCreate onse, and proceed onto the next lifecycle method. Also, I know that my current way of seeing if the sound is playing is crap...I'll get to that later.
I have a EditText on simple activity with a button.
when every i move from one activity to this acivity focus is automatically set to EditText and keyboard appears in phone.
i don't want to open keyboard until i click on editText.
can any one guide me what should i do?
I call an activity from another with startActivity(new Intent(Caller.this, NewActivity.class));
I had a problem with a variable. So, using debug I saw that I pass two times in the onCreate method of NewActivity!
I was a little bit surprised. Somebody can explain why and how can I avoid this behaviour?
I have some code in the onCreate method an Activity and noticed that it is being called three times. Is it normal behaviour?
View 1 Replies View RelatedI'm trying to create a ExpandableListView in one activity. I've looked in apis demos, and I've created ExpandableListView. The problem is, that I need to have this ExpandableListView in activity that is already created, and not in a new one.
I've used this code:
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Im trying to implement an activity that uses ExpandableListView and I have gotten so far but now I have found some strange behavior.
My activity is meant to record food intake as specified by the user. they have a choice of menus (breakfast, lunch and dinner - the outer group) which expand to show their contents.
when a user clicks on an inner menu item a dialog appears asking them for the qty. once they enter a qty and dismiss the dialog the text on the menu item changes to reflect the quantity of that item that has been consumed
The above image shows the list in a closed state.
Below is the list after I have opened the lunch menu and clicked on 'Potato Chips' and indicating a Quantity of 1. As you can see the 'Potato' itemtext has now been changed to reflect the Qty of 1.
The strange part happens now. if I click on 'Lunch' and close the list and then click on it again re-opening it, the 'Qty X 1' text has jumped to another item (Milk)
Each time I open and close the list it jumps back and forth between the two items. Also if I open up other items, such as breakfast, I find that they too have now gotten items with 'Qty X 1' even though I havent clicked them.
The bits of code that are relevant are as such:
The XML for a child element:
CODE:................
The code thats triggered on clicking a child element:
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The above code opens a dialog, accepts a value for quantity, appends the list element to reflect this, also saves to database and sets a textview with the selected item and quantity.
I'm opening an Activity using this:
startActivity(new Intent(Parent.this, Child.class)); And on the child, I have this code on the onCreate function (the if contains more than just true, of course): public void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState); if (true) { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setPositiveButton("OK", null); builder.setTitle("Error"); builder.setMessage("Connection error, please try later.") .show(); finishActivity(0); return;}}
Why is the activity not closing? I get the alert box, but then I have to tap the "back" button to go back.
I understand that Android Activities have specific lifecycles and that onCreate should be overridden and used for initialization, but what exactly happens in the constructor? Are there any cases when you could/should override the Activity constructor as well, or should you never touch it?
I'm assuming that the constructor should never be used because references to Activities aren't cleaned up entirely (thus hampering the garbage collector) and that onDestroy is there for that purpose. Is this correct?
I know that network activity and expensive operations should not be done on the ui thread, but what about database activity?
I have an activity that, when started, I query an sqlite database and dynamically populate rows in a tablelayout with an inflator. I do this all in the oncreate() method. Should this be done in a separate thread?
Android will call onCreate() of my activity whenever it is launched.
In the onCreate() of my activity can I tell what intent launches my activity?
As you can see, I first create a webview. Then, I want it to immediately disappear. Then, I want the Listview to come up. But the problem is, I can't do Listview if I don't do ListActivity but then I can't do Activity. Code...
View 2 Replies View RelatedI have a parent activity, and a child activity that extends the parent activity. When the parent starts the child activity,
Which onCreate gets executed first? The child's or parent's?
There is a particular variable I am setting in the Child activity's onCreate method, and right now, it looks like it takes a while to get to the Child activity's onCreate, and so the methods in the Parent are reporting an empty variable. Whereas when I make the Parent sleep for a while, it reports the correct variable.
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So, basically, even after the Parent starts the Child, it still returns "Parent Value", but when I have the thread sleep, it return "Child Value".
I have a need to capture some user input when an activity opens for the first time. I'm hoping to give the user a list of options to select from, which will be pulled in dynamically. I'll then store the selected value locally for future use. I'm not finding a way to do what I'm after and was wondering if anyone has run into this before and how they solved it.
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I launch my TestWebView activity. After my web page is loaded, I put the app in the background by pressing the Home key. Then I bring the TestWebActivity back to the foreground. Unexpectedly, TestWebView's onCreate() is called when I bring the activity to the foreground. But onDestroy is never called. This same thing happens every time I tested. It appears the old TestWebView was not completely killed so there are possibly duplicate web clients running.
My code: .....
My activity bind a service. I want to call the service's function in activity's onStart/onCreate function, but it doesn't work. The service started sunless but the connection is null. When I just call the service's function in other function (onClick for example),
View 4 Replies View RelatedThe order is:
A: startActivityForResult( B ) B: <dostuff>, call finish() A: onCreate <---- what's this all about A: onActivityResult
This happens for a tiny minority of users. I havn't been able to reproduce or find any common elements. A is the launch activity.
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I am new to Android and this is my first question here so please go easy on me.
Is it possible to check some condition inside onCreate() of an Activity and display an AlertDialog?
I am creating an AlertDialog anonymously in Oncreate() and calling show on that instance but the AlertDialog is never displayed.
I am using startActivity to call another Activity and I get the "Activity Not Found Exception".
Here is my code:
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Here is the Logcat output:
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Here is the debug window output:
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symptomRemedyActivity is another activity in my project. Is there something I need to do like importing symptomRemedyActivity so that startActivity can see symptomRemedyActivity, to remove this "Activity Not Found Exception"?
I am playing with "android.speech.action.RECOGNIZE_SPEECH" and in the source it says to trap for ActivityNotFoundException. However, I am not sure how I can do this, the activity class doesn't support this event. I found it as part of android.content, but am not sure how to implement it. Multiple inheritance?
View 2 Replies View RelatedI'm currently working on an XMPP app' on Android and I'm pondering about the best way to throw a different type of Exception than a RemoteException to my activity from my service.
As it seems impossible to throw another thing than a RemoteException using IPC (you can't declare to throw anything in your .aidl), I just see two solutions:
Create a listener for my activity to listen on my custom XMPP exception, which in fact will not be thrown but just sent as a usual object implementing the Parcelable protocol.
Catch my XMPPException and throw a RemoteException (with a content updated with my XMPPException) - But in that case, how could I know on my activity if it's an XMPP or a real RemoteException ? By tagging the name of the exception and parsing it on my activity ? It would be really gore.
I have built an activity to handle gestures in my Android game and want it to respond to a gesture anywhere on the screen but I am getting this error on the Log:
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I understand I need to allocate a view to the activity and as you will see in my XML, a view called gestures will serve this purpose but I keep getting Inflation errors when trying to inflate the view. Before when this happened to me it was a misspelling of the view name in the XML but that's not it this time I don't think.
How would I properly assign the 'gesture' view to this activity to prevent the errors?
I have defined my activity in my code like this:
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I have created the activity in the main thread in it's doStart() method by saying:
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And my XML layout looks like this:
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The error I receive is, "android.content.ActivityNotFoundException: Unable to find explicit activity class {com.droidea.birthday/ EditBirthdayActivity}; have you declared this activity in your AndroidManifest.xml?"
The error seems simple enough, but I don't see a problem with the way I have identified this activity in my manifest file. I have also been unable to see any problems with the activity class itself..............
What's the appropriate permission to be added to manifest tag for my activity group? Code...
View 2 Replies View RelatedI have faced with issue about startActivityForResult() and onActivityResult(). If child activity started by the startActivityForResult() exit by unexpected exception the onActivityResult() is not called and I have no any ideas how can I handle this to get application working in a fail-safe manner ?
When my code runs child activity with startActivityForResult() it awaits until onActivityResult() will be invoked to get working further, but onActivityResult() is not calling and my code is "hang- up" (logically).
So the question is how can I handle all possible ways the child activity is finished (normally and by unexpected exception) to get fail-safe code ?
I have check the documentation for this issue but have found nothing relating issue.
My app crashes with a null pointer exception on the code below. I have an xml preference file under res/xml/defaults.xml
public class Preference extends Activity {
public Preference() {
} public String getPreference(String key)
{ //it still crashes here
SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(this.getApplicationContext());
String result = settings.getString(key, null); return result;
} }