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  • how to run TimerTask off main UI thread?

    - by huskyd97
    I am having trouble with a TimerTask Interfering with In App Purchasing (Async Tasks). I am weak with Threads, so I believe it is running on the main UI thread, eating up resources. How can I run this outside the UI thread? I have searched, and tried some suggestions using handlers. but seems like I get the same result, app gets really laggy. when I don't run this task (refreshes every 500mS), the activity runs smoothly, and there are no hangs during In app purchases. Your help is appreciated, code snippet below: public class DummyButtonClickerActivity extends Activity { protected Timer timeTicker = new Timer("Ticker"); private Handler timerHandler = new Handler(); protected int timeTickDown = 20; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.mainhd); // start money earned timer handler TimerTask tick = new TimerTask() { public void run() { myTickTask(); } }; timeTicker.scheduleAtFixedRate(tick, 0, 500); // 500 ms each } // End OnCreate protected void myTickTask() { if (timeTickDown == 0) { /// run my code here //total = total + _Rate; timerHandler.post(doUpdateTimeout); } else if(timeTickDown < 0) { // do nothing } timeTickDown--; } private Runnable doUpdateTimeout = new Runnable() { public void run() { updateTimeout(); } }; private void updateTimeout() { // reset tick timeTickDown = 2; // 2* 500ms == once a second } }

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  • How to create an ARGB_8888 pixel value?

    - by vidstige
    Say I want to create an array of pixel values to pass into the createBitmap method described here. I have three int values r, g, b in the range 0 - 0xff. How do I transform those into a opaque pixel p? Does the alpha channel go in the high byte or the low byte? I googled up the documentation but it only states that: Each pixel is stored on 4 bytes. Each channel (RGB and alpha for translucency) is stored with 8 bits of precision (256 possible values.) This configuration is very flexible and offers the best quality. It should be used whenever possible. So, how to write this method? int createPixel(int r, int g, int b) { retrurn ? }

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  • Transparent Dialog Alignment

    - by feragusper
    I'm trying to get a custom dialog with a transparent background doing this way: this.getWindow().setBackgroundDrawableResource(R.drawable.transparent); (where "R.drawable.transparent" is a reference to the color "#00000000") The weird issue on this is that I can't align my dialog window. It's always aligned to the left, even if I implicit set the Gravity of the window using: this.getWindow().setGravity(Gravity.CENTER); And if I just comment the line which set the transparent background, the alignment works fine. Any help would be much appreciated! Thanks.

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  • Switch back to previously selected tab after the activity is recreated

    - by ZelluX
    In my TabActivity the user may be asked to switch to browser activity for OAuth phase, and if the phase takes too much time, my activity will be killed. After the user switches back to my activity, its onCreate() method is invoked again and tabs are recreated. So I would like to know if there is any simple way to switch back to previous tab, and keep the tab as what it was. For example, one of the tab views contains a ViewSwitcher child, and I want to switch back to the switched view after recreating the activity.

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  • Center text inside a circle on a canvas

    - by jax
    I have the coordinates of the center of a circle where I need to draw some text. The circle may be larger or smaller depending on the attributes I have specified. I have set the center horizontally using mTextBrush.setTextAlign(Align.CENTER);. The problem is that I can't figure out a way to center the text vertically. (See "Draw the counter" below) //Text Brush setup mTextBrush = new Paint(Paint.ANTI_ALIAS_FLAG); mTextBrush.setColor(Color.BLACK); mTextBrush.setTextSize(1/10*mMaxSize); mTextBrush.setTextAlign(Align.CENTER); mTextBrush.setStyle(Paint.Style.STROKE); private void drawSmallTimer(Canvas canvas) { //Variable cache int radiusLocalCache = this.mRadius; int cx = radiusLocalCache+(radiusLocalCache/2); int cy = radiusLocalCache-(radiusLocalCache/2); int radius = radiusLocalCache/3; //Draw the background circle canvas.drawCircle(cx, cy, radius, mBackgroundBrush); //Draw the outline stroke canvas.drawCircle(cx, cy, radius, mStrokeBrush); //Draw the counter String text = String.valueOf(mCounter); canvas.drawText(text, cx, cy, mTextBrush); }

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  • Access Assests from another application?

    - by pcm2a
    I get a lot of requests in my application to allow for custom icons packs from BetterCut / Open Home. The way it seems to work is you install BetterCut or Open Home, then you can install tons of these free icon packs from the market. Once installed both those apps (and other apps) will poll for those icon packs and use the icons. I want to know how to poll the install applications for the asset folders that are available. I have opened up a few of the icon packs and verified that there is an assets folder in there and they are full of all the icon png files. I've searched on here, other code sites, google, etc but havn't found any leads.

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  • inflate vs findViewById

    - by Cedric
    Hi all, Suppose I have a simple layout xml like the following: button.xml: Are there any differences in the following calls? and which one should i use? button = (Button) getLayoutInflater().inflate(R.layout.button, null); and View v = getLayoutInflater().inflate(R.layout.button, null); button = (Button) v.findViewById(R.id.button01);

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  • Force Tab Activity creation?

    - by Daniel
    I have a TabHost and several tabs added to it. Problem: The activities on these tabs are not created until the tab is pressed. My tabhost is broadcasting intents but my broadcast receivers are not registered until onCreate in my tab activities is called. Is there any way to force activity creation? Maybe my tabhost can call setCurrentTab and switch back to main tab(0), but is that really the best option available?

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  • Can we instantiate abstract class?

    - by satheesh.droid
    I don't understand whether we can instantiate abstract class by any means because I have read we can inherit the abstract class but in have found we can create an object by calling method of other class.For example LocationProvider is an abstract class but we can create object for the same by calling getProvider() function in LocationManager class. By the following code LocationManager lm=getSystemService(Context.LOCATION_PROVIDER) LocationProvider lp=lm.getProvider("gps");

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  • MyLocationOverlay dissappears, is not there onResume.

    - by Paul
    I have a mapView to which I add a MyLocationOverlay. It displays fine when the app starts from scratch (goes through onCreate). If I exit the app (back button) and then start it again (onResume), the overlay is gone. I have tried to fix this for 10+ hours. All sorts of messing with re-adding the overlay. Resetting the overlays. Changing the maps location so it's forced to redraw. Trying to manually invalidate or force a redraw of the overlay. NOTHING has worked. From the way the code looks, the Overlay object exists and everything is working fine - but it's just not on the map. Is anybody else having this problem? (Droid Incredible, 2.2)

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  • Two imageViews vs one imageView and a canvas

    - by user3009842
    I have a bitmap and I want to scale it up to fill an ImageView and overlay the unscaled version of the bitmap on top. Which would be cheaper (in terms of memory and processor usage)? Using two ImageViews, one for each version of the bitmap Using a canvas and drawing on the singular bitmap, using one ImageView I saw this question about ImageView vs Canvas, but it doesn't address memory/processor concerns. My intuition says two ImageViews may use more RAM, while using a canvas would use more processing power while the drawing occurs.

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  • How to generate a ListView with headers above some sections?

    - by Janusz
    I want to generate a Listview that has some dividers between some of the entries, like it can be seen in some of the property sections. See the example below. I try to generate a List that consists of some textviews followed by one of the fancy dividers explaining the next part of the list and then again some text views. How can this be done? I thought about creating different views to add to the list? Is this the way to go?

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  • How to add ListView to MapView from the xml resource ?

    - by user164589
    Hi guys. How to add ListView to MapView from the xml resource ? In order words, I am trying to make a screen contains google MapView and ListView. Because impossible to extends 2 Activitys' (ListActivity & MapActvity), I am trying to add a ListView(It is created from xml resource) to MapView. Thanks in advance.

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  • How to handle null response for json object

    - by user1494754
    I get a JSON response as { "edges": [], "nodes": [] } how to check if the objects has null values and handle the case?? JSONObject jobj = new JSONObject(line); JSONArray jArray = jobj.getJSONArray("edges"); if(jArray.length()!=0) { for(int i=0;i<jArray.length();i++){ JSONObject json_data = jArray.getJSONObject(i); x.add((float) json_data.getInt("x")); y.add((float) json_data.getInt("y")); end This retrurns me : org.json.JSONException: end of input at character 0 of

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  • Andriod Tutorials or book recommendations?

    - by chobo2
    Hi I want to an andriod application(a port from a windows mobile phone) but I need to learn a couple things How to program for different screen sizes and resolutions (so my controls get bigger smaller or whatever) How to dynamically create controls such labels and checkboxes ( and checkbox listeners) How to create a menu How to create a context menu( a menu when you right click on the screen it pops up) how to program for landscape and portrait mode How to consume a webservice Most of what I am after is mostly the display aspect as all my logic is on a webservice so I could port all my stuff to different phones faster. So I am looking for tutorials or a book to get me up to speed to do these things

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  • Data 'logger' turning off when phone goes to standbymode

    - by Marko Järvenpää
    I'm creating a datalogger which logs the gps data and the sensor data of the phone. I've just a strange problem. If the phone is not touched for few minutes it goes into standby mode (screen goes black), and that causes the logger to stop working. Actually the firewriting in the logger stops working. The GPS resumes fine after coming out of blackscreen, but when I check the log I created it only shows saved points for few minutes. Does anyone have idea what is causing this?

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  • odd response after INVITE request, SIP

    - by supersk
    After sending an invite request i receive a trying answer, and immidietly after that i receive error 407 proxy authentication required. After sending ack & another invite with the proxy header i receive session progress about 1/4 of the time!! other times it just sends 407 error again & again. Any ideas?

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  • How does LocationManager work

    - by user2511882
    I have been going through the google docs for the locationManager API and specifically over the method locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 60000, 10, this); In the above line, the manager will check for location updates after each minute and distance of 10 meters. My question is does it actually take both the parameters into consideration? For example if you are driving along how will the method work? Will it start looking for updated locations since you are over the minimum distance between the two updates or will it wait for a minute irrespective? If someone can tell me its behavior, it would be great. Thanks.!!

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  • UIWebView Loading content properly on iOS 6 simulator but not on device?

    - by David Hegner
    I have encountered a weird bug with a released app. My UIWebView is no longer loading content on iOS 6, yet the content still displays in the simulator. The activity indicator displays properly but then it loads a blank url? Again, this only happens on a device, not on the simulator. To provide extra context (in the simulator the NSURLRequest is assigned the proper URL. When run on a device the value is nil.) Here is my code : -(void)loading { if(!self.webView.loading) [self.activityIndicator stopAnimating]; else { [self.activityIndicator startAnimating]; } } - (void)viewDidLoad { [self.webView addSubview:self.activityIndicator]; NSURLRequest *requestUrl = [NSURLRequest requestWithURL:self.url]; [self.webView loadRequest:requestUrl]; self.timer = [NSTimer scheduledTimerWithTimeInterval:(1.0/2.0) target:self selector:@selector(loading) userInfo:nil repeats:YES]; [super viewDidLoad]; NSLog(@"%@", requestUrl); }

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  • Free icons for mobile applications. Where?

    - by Geltrude
    I know that in the sdk folders I can find some (not very well grouped, imho) icon. But, there is a site online specialized that let you download free icons useful for mobile app? Ie world flags, up, down... save, revert..., next..., play, stop..., etc. It would be more appriciated also if you can find these sets in many different colors, and in 2 or 3 sizes (32x32, 64x64, etc.). Have a nice day (ot. Especially my mom - her 62 birthday :-) Edit: those are all good sites, but to green-check the answer I need a small set with the common icons (I think moreabout 50-70 icons), in many different colors and in 2 or 3 different sizes (for lo-mid-hi definition devices). - If a so done site exists for free :-)

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