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  • Android ProgressBar.setProgressDrawable only works once?

    - by Chuck
    In a color picker, I have 3 SeekBars for Hue, Saturation, and Value. Calling setProgressDrawable on these SeekBars only works once -- at initialization from onCreate. When the user updates the Hue SeekBar, I want to call setProgressDrawable for the Saturation and Value SeekBars, to show the user their color choices for the new Hue. But all calls to setProgressDrawable (after the initial ones from onCreate) cause the SeekBar to be blanked. How can I update the background gradient of my SeekBars based upon user input? Thanks! Chuck

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  • OutOfMemoryError: bitmap size exceeds VM budget :- Android

    - by Shalini Singh
    Hi! i am downloading images from Url and displaying them,,, at the downloading time it is giving "out of memory error : bitmap size exceeds VM budget" i am using drawable ... code is giving bellow: HttpClient httpclient= new DefaultHttpClient(); HttpResponse response=(HttpResponse)httpclient.execute(httpRequest); HttpEntity entity= response.getEntity(); BufferedHttpEntity bufHttpEntity=new BufferedHttpEntity(entity); InputStream instream = bufHttpEntity.getContent(); Bitmap bm = BitmapFactory.decodeStream(instream);` Bitmap useThisBitmap = Bitmap.createScaledBitmap(bm,bm.getWidth(),bm.getHeight(), true); bm.recycle(); BitmapDrawable bt= new BitmapDrawable(useThisBitmap); System.gc(); Error: 05-28 14:55:47.251: ERROR/AndroidRuntime(4188): java.lang.OutOfMemoryError: bitmap size exceeds VM budget Please help me,,,,

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  • Android - ExpandableListView change background for child items

    - by DroidIn.net
    I'm using ExpandableListView in my app and one of the complains I get from the users is that when the list item is expanded it's hard to visually distinguish where the child item ends and next group item begins. So I would like to change background of the child list item to the different shade. Brutal attempts that I've made so far were based on directly changing background color and text of the elements inside the child view item but that leads to loss of hovers and highlights. So my question is - what is a good strategy to achieve the above? I tried styles and selectors but what really bums me - if I change background for child item then I need to add selectors for all combinations of focus/enabled etc. when all I'm trying to do it to overwrite a single thing. Is there a way to inherit parent style and set background only for non- focused, enabled child item with other styles retained?

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  • android ellipsize multiline textview

    - by Arutha
    I need to ellipsize multiligne textview. My component is large enough to display at least 4 lines with the ellipse, but only 2 lines are displayed. I tried to change the minimum and maximum number of rows in the component but it changes nothing

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  • Android List View Drag and Drop sort

    - by miannelle
    I have a list of records in a listview that I want the user to be able to re-sort using a drag and drop method. I have seen this implemented in other apps, but I have not found a tutorial for it. It must be something that others need as well. Can anyone point me to some code for doing this?

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  • Android -- Change the AlertDialog Animation?

    - by borg17of20
    Hello all, Does anyone know how to change the in/out animations of an extended AlertDialog? I connot figure out how to do this. See below for what I have so far (it doesn't work though): public class PauseMenu extends AlertDialog { private Context myContext; public PauseMenu(Context context, int theme) { super(context, theme); myContext = context; } protected PauseMenu(Context context, boolean cancelable, OnCancelListener cancelListener) { super(context, cancelable, cancelListener); myContext = context; } public PauseMenu(Context context) { super(context); myContext = context; } @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub //super.onCreate(savedInstanceState); this.setContentView(R.layout.pause_menu); //this.getWindow().getDecorView().setAnimation(new ViewZoomAnimation()); this.getWindow().getDecorView().setAnimation(AnimationUtils.loadAnimation(myContext, R.anim.slide_in_bottom_newgame)); } } Thanks.

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  • Android Handler postDelayed executes twice

    - by Ömer Baykal
    When I use Handler and its postDelayed method, the run() method executes twice. Below is part of my code. Handler deneme = new Handler(); deneme.postDelayed(new Runnable() { @Override public void run() { randomOyna(); } }, 1000); where randomOyna is the method public void randomOyna() { Log.v("sonOlarak", "çalisti"); } I monitor the LogCat and see that "çalisti" entry is written twice, so that randomOyna is called twice. The task is scheduled truely, but executes both after 1 sec and 2 secs. Can you help me???

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  • How to override filter in android's ArrayAdapter?

    - by Mike
    I have an ArrayAdapter wrapped around an ArrayList of custom objects. I'd like to write a custom filter for that adapter so that when I call getListAdapter().getFilter().filter("abc") the list will get filtered by an arbitrary transformation of "abc". I thought I would just try to override ArrayAdapter.getFilter(), but that requires I re-implement the private ArrayAdapter.ArrayFilter which requires access to a bunch of ArrayAdapter's private instances. What's the simplest way to do this?

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  • webview loaddata in android does not load a picture from img src

    - by Sephy
    I use loadData method to load some html content into a webview, but when it encounters something like this : <a href="http://www.anywebsite.fr/">some text</a><img src="http://www.anotherwebsite.fr/thewantedpicture" width="1" height="1" border="0" alt="" style="border:none !important; margin:0px !important;" /> I only get this in the application : some text And if I'm not mistaken, this should also display the picture ? If someone has any lead, thanks...

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  • Android-Java: Constructing a triangle based on Coordinates on a map and your bearing

    - by Aidan
    Hi Guys, I'm constructing a geolocation based application and I'm trying to figure out a way to make my application realise when a user is facing the direction of the given location (a particular long / lat co-ord). I've got the math figured, I just have the triangle to construct. //UPDATE So I've figured out a good bit of this... Below is a method which takes in a long / lat value and attempts to compute a triangle finding a point 700 meters away and one to its left + right. It'd then use these to construct the triangle. It computes the correct longitude but the latitude ends up somewhere off the coast of east Africa. (I'm in Ireland!). public void drawtri(double currlng,double currlat, double bearing){ bearing = (bearing < 0 ? -bearing : bearing); System.out.println("RUNNING THE DRAW TRIANGLE METHOD!!!!!"); System.out.println("CURRENT LNG" + currlng); System.out.println("CURRENT LAT" + currlat); System.out.println("CURRENT BEARING" + bearing); //Find point X(x,y) double distance = 0.7; //700 meters. double R = 6371.0; //The radius of the earth. //Finding X's y value. Math.toRadians(currlng); Math.toRadians(currlat); Math.toRadians(bearing); distance = distance/R; Global.Alat = Math.asin(Math.sin(currlat)*Math.cos(distance)+ Math.cos(currlat)*Math.sin(distance)*Math.cos(bearing)); System.out.println("CURRENT ALAT!!: " + Global.Alat); //Finding X's x value. Global.Alng = currlng + Math.atan2(Math.sin(bearing)*Math.sin(distance) *Math.cos(currlat), Math.cos(distance)-Math.sin(currlat)*Math.sin(Global.Alat)); Math.toDegrees(Global.Alat); Math.toDegrees(Global.Alng); //Co-ord of Point B(x,y) // Note: Lng = X axis, Lat = Y axis. Global.Blat = Global.Alat+ 00.007931; Global.Blng = Global.Alng; //Co-ord of Point C(x,y) Global.Clat = Global.Alat - 00.007931; Global.Clng = Global.Alng; } From debugging I've determined the problem lies with the computation of the latitude done here.. Global.Alat = Math.asin(Math.sin(currlat)*Math.cos(distance)+ Math.cos(currlat)*Math.sin(distance)*Math.cos(bearing)); I have no idea why though and don't know how to fix it. I got the formula from this site.. http://www.movable-type.co.uk/scripts/latlong.html It appears correct and I've tested multiple things... I've tried converting to Radians then post computations back to degrees, etc. etc. Anyone got any ideas how to fix this method so that it will map the triangle ONLY 700 meters in from my current location in the direction that I am facing? Thanks, EDIT/// Converting the outcome to radians gives me a lat of 5.6xxxxxxxxxxxxxx .I have a feeling this bug has something to do with conversions but its not THAT simple. The equation is correct, it just.. outputs wrong..

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  • Android: Tabs at the BOTTOM

    - by llappall
    Hi, I've seen some chatter about this, but nothing definite. Is there a way to put the tabs in a TabWidget to the bottom of the screen? If so, how? I've tried the following, but didn't work: a) setting the tabwidget below the framelayout b) setting the tabwidget's gravity to "bottom" Thanks! llappall

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  • Android TabHost: update tabs from tab's activity

    - by joshuadlillie
    I have a TabActivity and am going to have 3 or 4 tabs. In TabA, I would like to have an ExpandableListView, which will list products. I would like TabC to act as a sort of "shopping cart", probably with a ListView of itself. So, my question is: is there a way to interact with the TabHost from the Activity? I would like to be able to click a button inside of TabA and have it update and switch to TabC. Is this possible? Can I get the Tab's activities call it's parents methods?

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  • What does the filter parameter to createScaledBitmap do?

    - by clahey
    The declaration of android.graphics.Bitmap.createScaledBitmap is public static Bitmap createScaledBitmap (Bitmap src, int dstWidth, int dstHeight, boolean filter) However, the documentation doesn't explain any of the parameters. All of them are pretty obvious except for boolean filter. Does anyone know what it does?

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  • Android onTrackballEvent and Click

    - by Gaz
    Hi Everyone, I want to capture onClick events for the trackball on a HTC Hero. This event is firing and I can get the direction of motion of the trackball: @Override public boolean onTrackballEvent(MotionEvent event) { } How do I find out if the event was a click event?

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  • Android - Using PreferenceScreen to display and save settings to/from ContentProvider

    - by Donal Rafferty
    I have my own custom Content Provider that loads a datasbase which contains the settings information for my application. I load the settings from the ContentProvider on the creation of my Settings activity. My Settings activity is made up of a PreferenceScreen and Dialog based EditText's. The following code shows how I use the preference screen and edit texts. So as you can see from the first image this works and displays the menu with the information underneath. The problem is in image two, when I click on a choice in the menu the dialog pops up but it is empty, I would like to be able to load the data from my content provider into the edit text in the dialog, so in image one it shows "Donal" as the user name so in image two "Donal" should also appear in the edit text in the dialog. I would also like to be able to listen to the OK button in the dialog so when a user changes a setting I can update the data in my content provider. Can anyone help me with what I'm trying to do? Code // Root PreferenceScreen root = getPreferenceManager().createPreferenceScreen(this); // Dialog based preferences PreferenceCategory dialogBasedPrefCat = new PreferenceCategory(this); dialogBasedPrefCat.setTitle(R.string.dialog_based_preferences); root.addPreference(dialogBasedPrefCat); // Edit text preference EditTextPreference editTextPref = new EditTextPreference(this); editTextPref.setDialogTitle(R.string.dialog_title_edittext_preference); editTextPref.setKey("edittext_preference"); editTextPref.setTitle(R.string.title_edittext_preference); editTextPref.setSummary(name); dialogBasedPrefCat.addPreference(editTextPref); Image One Image Two

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  • Android ViewFlipper + Gesture Detector

    - by Tim
    I am using gesture detector to catch "flings" and using a view flipper to change the screen when this happens. Some of my child views contain list views. The the gesture detector wont recognize a swipe if you swipe on the list view. But it will recognize it if it is onTop of TextView's or ImageView's. Is there a way to implement it so that it will recognize the swipes even if they are on top of another view that has a ClickListener?

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  • Android WebView wrap-content

    - by Javadid
    Hi Friend... a simple question... Is it possible to Load a URL in a webView and resize it to fit the screen... i Mean i want to make the WebPage small so that the user doesnt need to scroll... IS it possible????

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  • Android Spinner selection

    - by Arutha
    The OnItemSelectedListener event handler gets called both when a spinner selection is changed programmatically, and when a user physically clicks the spinner control. Is is possible to determine if an event was triggered by a user selection somehow? Or is there another way to handle spinner user selections?

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  • How to use Parcel in Android?

    - by Mike
    I'm trying to use Parcel to write and then read back a Parcelable. For some reason, when I read the object back from the file, it's coming back as null. public void testFoo() { final Foo orig = new Foo("blah blah"); // Wrote orig to a parcel and then byte array final Parcel p1 = Parcel.obtain(); p1.writeValue(orig); final byte[] bytes = p1.marshall(); // Check to make sure that the byte array seems to contain a Parcelable assertEquals(4, bytes[0]); // Parcel.VAL_PARCELABLE // Unmarshall a Foo from that byte array final Parcel p2 = Parcel.obtain(); p2.unmarshall(bytes, 0, bytes.length); final Foo result = (Foo) p2.readValue(Foo.class.getClassLoader()); assertNotNull(result); // FAIL assertEquals( orig.str, result.str ); } protected static class Foo implements Parcelable { protected static final Parcelable.Creator<Foo> CREATOR = new Parcelable.Creator<Foo>() { public Foo createFromParcel(Parcel source) { final Foo f = new Foo(); f.str = (String) source.readValue(Foo.class.getClassLoader()); return f; } public Foo[] newArray(int size) { throw new UnsupportedOperationException(); } }; public String str; public Foo() { } public Foo( String s ) { str = s; } public int describeContents() { return 0; } public void writeToParcel(Parcel dest, int ignored) { dest.writeValue(str); } } What am I missing? UPDATE: To simplify the test I've removed the reading and writing of files in my original example.

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  • Overlap problem with Android ListView selector

    - by virsir
    I am trying to style my ListView with two 9-patch background images (16px * 9px), one dark image for default state and another green image for selected and pressed state. It works except for just one problem that when I select or press one list item, it seems that the selected item overlap the next one a little bit as I can see some pixels of the green background image is on the top of next item. How to fix that?

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  • Using getRotationMatrix and getOrientation in Android 2.1

    - by aaronmar
    I've been having issues with this for far too long. This code should output dx,dy,dz for the accelerometer, and a running total of the dx. It should also output azimuth, pitch, and roll. I've used info from http://bit.ly/codeUsed, but to no avail. This code does not correctly output pitch, azimuth, or roll. It outputs 0.0, -0.0, -0.0 for the last three textviews, respectively. Please restore my sanity by helping me switch (event.sensor.getType()) { case Sensor.TYPE_ACCELEROMETER: accelerometerValues = event.values.clone(); case Sensor.TYPE_MAGNETIC_FIELD: geomagneticMatrix = event.values.clone(); sensorReady = true; break; default: break; } if (geomagneticMatrix != null && accelerometerValues != null && sensorReady) { sensorReady = false; float[] R = new float[16]; float[] I = new float[16]; SensorManager.getRotationMatrix(R, I, accelerometerValues, geomagneticMatrix); float[] actual_orientation = new float[3]; SensorManager.getOrientation(R, actual_orientation); tvXCoordinate.setText(accelerometerValues[0] + ""); tvYCoordinate.setText(accelerometerValues[1] + ""); tvZCoordinate.setText(accelerometerValues[2] + ""); floatXTotal += accelerometerValues[0]; tvXTotal.setText(floatXTotal + ""); tvAzimuth.setText(actual_orientation[0] + ""); tvPitch.setText(actual_orientation[1] + ""); tvRoll.setText(actual_orientation[2] + ""); }

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  • Android TextView Justify Text

    - by Peter
    Hey, How do you get the text of a TextView to be Justified (with text flush on the left- and right- hand sides)? I found a possible solution here, but it does not work (even if you change vertical-center to center_vertical, etc). Cheers, Pete

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  • Android: Set a random image using setImageResource

    - by Tom Jones
    I need a help with setting a random image using setImageResource method. In the drawable folder, I have a jpeg file named photo0.jpg, photo1.jpg...photo99.jpg. And the following code works: int p = R.drawable.photo1; image.setImageResource(p); The above will display photo1.jpg but I want to show a random image. I tried the following but it doesn't work. String a = "R.drawable.photo"; int n = (int) (Math.random()*100) String b = Integer.toString(n); String c = a+b; int p = Integer.parseInt(c);//checkpoint image.setImageResource(p); It seems like the string "R.drawable.photoXX" isn't being changed to integer at the checkpoint. Could someone please teach me a right code? Thank you in advance.

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