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  • Getting Reference to Calling Activity from AsyncTask (NOT as an inner class)

    - by stormin986
    Is it at all possible, from within an AsyncTask that is NOT an inner class of the calling Activity class, to get a reference to the instance of Activity that initiated execution of the AsyncTask? I am aware of this thread, however it doesn't exactly address how to reference the calling Activity. Some suggest passing a reference to the Activity as a parameter to the AsyncTask constructor, however, it's reported that doing so will always result in a NullPointerException. So, I'm at a loss. My AsyncTask provides robust functionality, and I don't want to have to duplicate it as an inner class in every Activity that wants to use it. There must be an elegant solution.

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  • Image from WebView

    - by kostas_menu
    hi!i m getting a photo from the web,but i see it very large..how could i see it with zoom out?this is my code for webView: public class gavros extends Activity { WebView browser; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.efimerides); browser =(WebView)findViewById(R.id.webview); browser.loadUrl("http://resources.sport-fm.gr/sportfm/newspapers/10/12/24/gavros.jpg"); }}

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  • on and off the user defined notification in status bar

    - by sairam333
    Hi i am displaying some alert message in the status bar depending up on my application condition.up to this the alert is displayed properly.But now i want if notification icon is appeared in the status bar when i saw once it(icon) will be removed from the status bar .and again it will be appeared depending up on condition .For this what can i do Give me some suggestions.Thanks in advance

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  • Calling SharedPrefences on AppWidget

    - by Rexx
    Hello all, I would like to know if there is an issue with calling a sharedPeference value on an appWidget provider class so i can use it for an update. I have this code which i call on a method in the appWidget provider class, but it keeps giving me compilation error and that i should create a method for it. this is the code: prefs = getSharedPreference("myPrefs", Context.MODE_PRIVATE); is this a known issue and is there any other way i can pass the value from my configuration class, if this is not possible. Thank you

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  • Can you please explain onCreate and Bundles?

    - by Mike
    I have been looking it up and I just cant seem to wrap myself around the onCreate and Bundles. I understand that the onCreate is called when the program starts but its how the Bundles get passed around and how they are pertinent. Can anyone try to put this into plain english because I cant seem to find it well described. Thanks

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  • How to Use Multi Spinner to Store Each Table from Database

    - by stephenborey
    Dear Sir, I'm having problem in the method how to add each of the database table to many spinners. The data from one table must use one spinner to store. In my form has 3 spinner which require data from 3 table in database. Please show me some sample or the familiar one, because I have just started in this program. Thank You in Advance!

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  • How to get reference of activity object ?

    - by Fevos
    Hi i want to show messageBox or notification when connection lost in Static DB class but i cant use getApplicationContext() becouse its a static class and i tried to call other class called notification but i have error so how i could pass activity object to my new class .

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  • Display last image taken in Media.Images

    - by steve
    Hi I'm inserting an image from the camera (Taking a picture) into the MediaStore.Images.Media datastore. Does anyone know how I can go about displaying the last picture taken? I used Uri image = ContentUris.withAppendedId(externalContentUri, 45); to display an image from the datastore but obviously 45 is not the correct image. I try to pass the information from the previous activity (Camera) to the display activity but I'm assuming due to the photo call back being its own thread the value never gets set. Photo code is as follows Camera.PictureCallback photoCallback = new Camera.PictureCallback() { public void onPictureTaken(byte[] data, Camera camera) { // TODO Auto-generated method stub FileOutputStream fos; try { Bitmap bm = BitmapFactory.decodeByteArray(data, 0, data.length); fileUrl = MediaStore.Images.Media.insertImage(getContentResolver(), bm, "LastTaken", "Picture"); if(fileUrl == null) { Log.d("Still", "Image Insert Failed"); return; } else { picUri = Uri.parse(fileUrl); sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, picUri)); } } catch(Exception e) { Log.d("Picture", "Error Picture: ", e); } camera.startPreview(); } };

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  • LocationListener is being called multiple times

    - by sujitjitu
    Hi, I am working on an Location Based Application. In this application i am using LocationListener class to update the location when the Location is changed.In each Activity i have different LocationListener to update location and do some specific work on updated location. But my problem is that when i am changing my location through DDMS , the LocationListener is being called of that current Activity as well as all the activities of the whole application where LocationListener has been defined. I don't know whether there should be one LocationListener for the whole application or for each Activity we should have different LocationListener. Please help me......Its urgent..........Thanks in Advance.....

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  • Looking for an example of selecting a row(s) with multiple columns from a grid view and add them to

    Here is the situation dealing with a vb.net website, I have students who will be enrolled into a course. The student grid view has many columns like client_no, student_name, date_of_birth, address, etc. There are over 100000 students so I will need to filter the student grid view to find the correct student to enroll in the course. Once they are found, the user selects them and somehow moves them to the enrolled grid view. If a student drops out then they would be removed from the enrolled grid view. This process needs to be easy to understand and use. Are there any examples available or other suggestions on how to do this?

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  • Eclipse does not recognize the file ID

    - by user1833845
    I'm trying to create a button in the application from one activity to another. The document resource/values/strings.xml created for this ID: <string name="button1name"> CID </ string> But the document GurovPictures.java (this is my main activity) when I insert a line: Button but1 = (Button) findViewById (R.id.button1); This "button1" does not become blue like "editText1". Do you happen to know how to fix it? Just the internet no entries found.

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  • Create a custom button

    - by Beppi Menozzi
    Sorry if this is too basic. I created a new class that extends Button: public class MyButton extends Button { private Context ctx; public MyButton(Context context) { super(context); ctx = context; } private void click() { // DO WHAT I NEED (FOR EXAMPLE CHANGE BACKGROUND) } } How can make it possible that, when I setOnClickListener() from another class where I instantiated this object, the click() method is called automatically? Thanks.

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  • How can specific the layout_width and layout_height of a Framelayout which fits an image

    - by michael
    Hi, I have an image which is 80px X 50 px, and I need to place that in one of the child of a FrameLayout, how can I specific the layout_width and layout_height of a Framelayout which fits an image without scaling it? I know there is a layout_height="wrap_content" layout_wight="wrap_content" for FrameLayout, but I can't use it, since that FrameLayout has other children. So I would like to hard code the FrameLayout width/height to match the dimension of the image? Should I use layout_width="80px" or layout_width="80dip"? Thank you.

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  • Moving image through different x,y coordinates

    - by user525004
    I have created an array of coordinates. The centre of an image should move through those coordinates. I have used TranslateAnimation to achieve it. But during the animation the image is moving within the last two coordinates. Below is my code: private void CreateAnimationAndRun() { // move to the different coordinates one by one for(int k=0; k The above function is called on a button click.

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  • How to emulate onLowMemory()?

    - by Samuh
    I have put some instructions in onLowMemory() callback and want to test the same. Is there a "direct" way to test onLowMemory function of the application subclass? Or will I have to just overload the phone by starting many apps and doing memory intensive tasks? Thanks.

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