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2014/10/16 ¤W¤È 08:16:35
android Programming Glossary: it'sSaving Activity state in Android http://stackoverflow.com/questions/151777/saving-activity-state-in-android no matter how I navigate away from the app. I'm sure it's probably something simple like overriding onPause or something..
java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android http://stackoverflow.com/questions/1949066/java-lang-outofmemoryerror-bitmap-size-exceeds-vm-budget-android have a memory leak. The problem isn't handling many images it's that your images aren't getting deallocated when your activity..
Quitting an application - is that frowned upon? http://stackoverflow.com/questions/2033914/quitting-an-application-is-that-frowned-upon like it . What's up with that I am starting to think that it's impossible to write an app that functions as a normal app that..
How to check visibility of software keyboard in Android? http://stackoverflow.com/questions/2150078/how-to-check-visibility-of-software-keyboard-in-android ... do something here Easy ORIGINAL ANSWER Yes it's possible but it's far harder than it ought to be. If I need.. something here Easy ORIGINAL ANSWER Yes it's possible but it's far harder than it ought to be. If I need to care about when..
How to pick an image from gallery (SD Card) for my app in Android? http://stackoverflow.com/questions/2507898/how-to-pick-an-image-from-gallery-sd-card-for-my-app-in-android returns with the path but you don't know which column it's in until you use the columnIndex code. That simply gets the..
Focusable EditText inside ListView http://stackoverflow.com/questions/2679948/focusable-edittext-inside-listview premise is that there is some row in a ListView whether it's generated by the adapter or added as a header view that contains.. So when calling setItemsCanFocus false it's also setting descendant focusability such that no child can..
How to call SOAP web service in Android http://stackoverflow.com/questions/297586/how-to-call-soap-web-service-in-android parsing it all manually with SAX . OK that's fine but it's 2008 so I figured there should be some good library for calling..
How to draw a path on a map using kml file? http://stackoverflow.com/questions/3109158/how-to-draw-a-path-on-a-map-using-kml-file markers on the map. See the code below for an example but it's not complete though just for you as a reference and get some..
What is the simplest and most robust way to get the user's current location in Android? http://stackoverflow.com/questions/3145089/what-is-the-simplest-and-most-robust-way-to-get-the-users-current-location-in-a in Android The LocationManager API in android seems like it's a bit of a pain to use for an application that only needs an.. Just grabbing one location is sufficient as long as it's not way off. Maybe if I want to be fancy I'll update the location.. I'll update the location once every few mins or so but it's not a huge priority. Work for any device as long as it has either..
Activity restart on rotation Android http://stackoverflow.com/questions/456211/activity-restart-on-rotation-android is restarted onCreate is called . Now this is probably how it's supposed to be but I do a lot of initial setting up in the onCreate.. 1. Put all the initial setting up in another function so it's not all lost on device rotation or 2. Make it so onCreate is..
How to make an Android Spinner with initial text “Select One” http://stackoverflow.com/questions/867518/how-to-make-an-android-spinner-with-initial-text-select-one and AdapterView.setSelectedPositionInt it's not guaranteed to work in future OS updates. It seems likely..
Android - basic gesture detection http://stackoverflow.com/questions/937313/android-basic-gesture-detection int dx int e2.getX e1.getX don't accept the fling if it's too short as it may conflict with a button push if Math.abs..
How to call a .NET Webservice from Android using KSOAP2? http://stackoverflow.com/questions/1052300/how-to-call-a-net-webservice-from-android-using-ksoap2 android ksoap2 ksoap share improve this question It's very simple. You are getting the result into an Object which..
Google maps api v2 custom infowindow like in original android google maps http://stackoverflow.com/questions/14123243/google-maps-api-v2-custom-infowindow-like-in-original-android-google-maps like to share here with you. Please excuse my bad English It's a little crazy to answer another Czech guy in English The first.. The first thing I tried was to use a good old PopupWindow. It's quite easy one only has to listen to the OnMarkerClickListener.. and the marker position by default it's bottom edge too . It's a good idea to use custom markers and also the InfoWindow frame..
How can I capture a video recording on Android? http://stackoverflow.com/questions/1817742/how-can-i-capture-a-video-recording-on-android recorder.stop recording false recorder.release finish It's from my book Pro Android Media Developing Graphics Music Video..
java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android http://stackoverflow.com/questions/1949066/java-lang-outofmemoryerror-bitmap-size-exceeds-vm-budget-android getting deallocated when your activity is destroyed. It's difficult to say why this is without looking at your code. However..
How to get the Android device's primary e-mail address http://stackoverflow.com/questions/2112965/how-to-get-the-android-devices-primary-e-mail-address primary e mail address or a list of e mail addresses It's my understanding that on OS 2.0 there's support for multiple..
Why doesn't System.out.println work? (in Android) http://stackoverflow.com/questions/2220547/why-doesnt-system-out-println-work-in-android in Eclipse or by running the following command adb logcat It's good to get in to the habit of looking at logcat output as that..
Clicking URLs opens default browser http://stackoverflow.com/questions/2378800/clicking-urls-opens-default-browser the SDK there's an example which does just what you want. It's as simple as private class HelloWebViewClient extends WebViewClient..
Display PDF within app on Android? http://stackoverflow.com/questions/2456344/display-pdf-within-app-on-android found it. The library however it's a bit tricky to use. It's not a standard Java jar library but rather it's JNI library..
SharedPreferences.onSharedPreferenceChangeListener not being called consistently http://stackoverflow.com/questions/2542938/sharedpreferences-onsharedpreferencechangelistener-not-being-called-consistently the listener in a field therefore preventing the issue. It's the saving the listener in a field that fixes the problem not..
Change language programatically in Android http://stackoverflow.com/questions/2900023/change-language-programatically-in-android localization resources share improve this question It's possible. You can set the locale. However i would not recommend..
http://stackoverflow.com/questions/2925054/mvc-pattern-in-android Android java android mvc share improve this question It's already implemented. You define your user interface in various..
How to Read MMS Data in Android? http://stackoverflow.com/questions/3012287/how-to-read-mms-data-in-android of part Table. android mms share improve this question It's kind of difficult to find documentation about this so I will.. e return sb.toString How to get image from MMS It's the same than getting the text part... the only difference is..
What is the simplest and most robust way to get the user's current location in Android? http://stackoverflow.com/questions/3145089/what-is-the-simplest-and-most-robust-way-to-get-the-users-current-location-in-a is available I start location listeners and timeout timer. It's 20 seconds in my example may not be enough for GPS so you can..
How to programatically create and read WEP/EAP WiFi configurations in Android? http://stackoverflow.com/questions/4374862/how-to-programatically-create-and-read-wep-eap-wifi-configurations-in-android to share this knowledge with all Since SO encourages this It's also perfectly fine to ask and answer your own question as long..
Activity restart on rotation Android http://stackoverflow.com/questions/456211/activity-restart-on-rotation-android or keyboard visibility changes won't trigger it. It's good practice to expose the instance of this class as a singleton..
How do I obtain crash-data from my Android application? http://stackoverflow.com/questions/601503/how-do-i-obtain-crash-data-from-my-android-application their applications when they crash or behave erroneously. It's easy to install in your app highly configurable and don't require..
Repeat a task with a time delay? http://stackoverflow.com/questions/6242268/repeat-a-task-with-a-time-delay value. This has to be done with a specific time delay. It's like Check status variable value Display some text Wait for..
When to call activity context OR application context? http://stackoverflow.com/questions/7298731/when-to-call-activity-context-or-application-context why not to use getApplicationContext wherever you go It's not a complete Context supporting everything that Activity does...
Saving Activity state in Android http://stackoverflow.com/questions/151777/saving-activity-state-in-android do for the simplest case but it always gives me the first message no matter how I navigate away from the app. I'm sure it's probably something simple like overriding onPause or something like that but I've been poking away in the docs for 30 minutes..
java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android http://stackoverflow.com/questions/1949066/java-lang-outofmemoryerror-bitmap-size-exceeds-vm-budget-android leak share improve this question It sounds like you have a memory leak. The problem isn't handling many images it's that your images aren't getting deallocated when your activity is destroyed. It's difficult to say why this is without looking..
Quitting an application - is that frowned upon? http://stackoverflow.com/questions/2033914/quitting-an-application-is-that-frowned-upon can very well totally destroy your app whenever it feels like it . What's up with that I am starting to think that it's impossible to write an app that functions as a normal app that the user can quit the app when he she decides to do so. That..
How to check visibility of software keyboard in Android? http://stackoverflow.com/questions/2150078/how-to-check-visibility-of-software-keyboard-in-android if heightDiff 100 if more than 100 pixels its probably a keyboard... ... do something here Easy ORIGINAL ANSWER Yes it's possible but it's far harder than it ought to be. If I need to care about when the keyboard appears and disappears which.. if more than 100 pixels its probably a keyboard... ... do something here Easy ORIGINAL ANSWER Yes it's possible but it's far harder than it ought to be. If I need to care about when the keyboard appears and disappears which is quite often then..
How to pick an image from gallery (SD Card) for my app in Android? http://stackoverflow.com/questions/2507898/how-to-pick-an-image-from-gallery-sd-card-for-my-app-in-android then giving that string to the cursor query. The cursor query returns with the path but you don't know which column it's in until you use the columnIndex code. That simply gets the number of the column based on its name the same one used in..
Focusable EditText inside ListView http://stackoverflow.com/questions/2679948/focusable-edittext-inside-listview so far and been hitting nothing but roadblocks. The general premise is that there is some row in a ListView whether it's generated by the adapter or added as a header view that contains an EditText widget and a Button. All I want to do is be.. if itemsCanFocus setDescendantFocusability ViewGroup.FOCUS_BLOCK_DESCENDANTS So when calling setItemsCanFocus false it's also setting descendant focusability such that no child can get focus. This explains why I couldn't just toggle mItemsCanFocus..
How to call SOAP web service in Android http://stackoverflow.com/questions/297586/how-to-call-soap-web-service-in-android documents and references to kSoap2 and then some bit about parsing it all manually with SAX . OK that's fine but it's 2008 so I figured there should be some good library for calling standard web services. The web service is just basically..
How to draw a path on a map using kml file? http://stackoverflow.com/questions/3109158/how-to-draw-a-path-on-a-map-using-kml-file the kml data i.e. via SAX parser then display the route markers on the map. See the code below for an example but it's not complete though just for you as a reference and get some idea. This is a simple bean I use to hold the route information..
What is the simplest and most robust way to get the user's current location in Android? http://stackoverflow.com/questions/3145089/what-is-the-simplest-and-most-robust-way-to-get-the-users-current-location-in-a and most robust way to get the user's current location in Android The LocationManager API in android seems like it's a bit of a pain to use for an application that only needs an occasional and rough approximation of the user's location... Don't particularly care about accuracy or frequency of update. Just grabbing one location is sufficient as long as it's not way off. Maybe if I want to be fancy I'll update the location once every few mins or so but it's not a huge priority... as long as it's not way off. Maybe if I want to be fancy I'll update the location once every few mins or so but it's not a huge priority. Work for any device as long as it has either a GPS or a Network Location provider. It seems like it..
Activity restart on rotation Android http://stackoverflow.com/questions/456211/activity-restart-on-rotation-android I rotate the device slide out the keyboard then my activity is restarted onCreate is called . Now this is probably how it's supposed to be but I do a lot of initial setting up in the onCreate method so I need either 1. Put all the initial setting.. of initial setting up in the onCreate method so I need either 1. Put all the initial setting up in another function so it's not all lost on device rotation or 2. Make it so onCreate is not called again and the layout just adjusts or 3. Limit the..
How to make an Android Spinner with initial text “Select One” http://stackoverflow.com/questions/867518/how-to-make-an-android-spinner-with-initial-text-select-one relies on reflection to call the private AdapterView.setNextSelectedPositionInt and AdapterView.setSelectedPositionInt it's not guaranteed to work in future OS updates. It seems likely that it will but it is by no means guaranteed. Normally I wouldn't..
Android - basic gesture detection http://stackoverflow.com/questions/937313/android-basic-gesture-detection MotionEvent e1 MotionEvent e2 float velocityX float velocityY int dx int e2.getX e1.getX don't accept the fling if it's too short as it may conflict with a button push if Math.abs dx MAJOR_MOVE Math.abs velocityX Math.absvelocityY if velocityX..
How to call a .NET Webservice from Android using KSOAP2? http://stackoverflow.com/questions/1052300/how-to-call-a-net-webservice-from-android-using-ksoap2 results 0 catch Exception e tv.setText e.getMessage android ksoap2 ksoap share improve this question It's very simple. You are getting the result into an Object which is a primitive one. Your code Object result Object envelope.getResponse..
Google maps api v2 custom infowindow like in original android google maps http://stackoverflow.com/questions/14123243/google-maps-api-v2-custom-infowindow-like-in-original-android-google-maps myself with no luck so I had to roll my own which I would like to share here with you. Please excuse my bad English It's a little crazy to answer another Czech guy in English The first thing I tried was to use a good old PopupWindow. It's quite.. It's a little crazy to answer another Czech guy in English The first thing I tried was to use a good old PopupWindow. It's quite easy one only has to listen to the OnMarkerClickListener and then show a custom PopupWindow above the marker. Some.. offset in pixels between the bottom edge of our InfoWindow and the marker position by default it's bottom edge too . It's a good idea to use custom markers and also the InfoWindow frame because we probably can't rely on the sizes of the default..
How can I capture a video recording on Android? http://stackoverflow.com/questions/1817742/how-can-i-capture-a-video-recording-on-android void surfaceDestroyed SurfaceHolder holder if recording recorder.stop recording false recorder.release finish It's from my book Pro Android Media Developing Graphics Music Video and Rich Media Apps for Smartphones and Tablets Also do not..
java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android http://stackoverflow.com/questions/1949066/java-lang-outofmemoryerror-bitmap-size-exceeds-vm-budget-android problem isn't handling many images it's that your images aren't getting deallocated when your activity is destroyed. It's difficult to say why this is without looking at your code. However this article has some tips that might help http android..
How to get the Android device's primary e-mail address http://stackoverflow.com/questions/2112965/how-to-get-the-android-devices-primary-e-mail-address device's primary e mail address How do you get the Android's primary e mail address or a list of e mail addresses It's my understanding that on OS 2.0 there's support for multiple e mail addresses but below 2.0 you can only have one e mail..
Why doesn't System.out.println work? (in Android) http://stackoverflow.com/questions/2220547/why-doesnt-system-out-println-work-in-android am here You can then view the log either in the Logcat view in Eclipse or by running the following command adb logcat It's good to get in to the habit of looking at logcat output as that is also where the Stack Traces of any uncaught Exceptions..
Clicking URLs opens default browser http://stackoverflow.com/questions/2378800/clicking-urls-opens-default-browser method . If you look at the WebView sample in the SDK there's an example which does just what you want. It's as simple as private class HelloWebViewClient extends WebViewClient @Override public boolean shouldOverrideUrlLoading WebView..
Display PDF within app on Android? http://stackoverflow.com/questions/2456344/display-pdf-within-app-on-android to support that kind of feature into my app and finally found it. The library however it's a bit tricky to use. It's not a standard Java jar library but rather it's JNI library C language for Android and you need to compile it yourself if..
SharedPreferences.onSharedPreferenceChangeListener not being called consistently http://stackoverflow.com/questions/2542938/sharedpreferences-onsharedpreferencechangelistener-not-being-called-consistently method fixes the problem is because to do that you had to save the listener in a field therefore preventing the issue. It's the saving the listener in a field that fixes the problem not the unregistering in onDestroy. share improve this answer..
Change language programatically in Android http://stackoverflow.com/questions/2900023/change-language-programatically-in-android the user change the language of the app from the app. android localization resources share improve this question It's possible. You can set the locale. However i would not recommend that. We've tried it at early stages it's basically fighting..
http://stackoverflow.com/questions/2925054/mvc-pattern-in-android Or is there a better way to implement the MVC pattern for Android java android mvc share improve this question It's already implemented. You define your user interface in various XML files by resolution hardware etc. You define your resources..
How to Read MMS Data in Android? http://stackoverflow.com/questions/3012287/how-to-read-mms-data-in-android image. I have seen the schema of mmssms.db and Their Column of part Table. android mms share improve this question It's kind of difficult to find documentation about this so I will collect here all information I have found. If you are in a.. IOException e finally if is null try is.close catch IOException e return sb.toString How to get image from MMS It's the same than getting the text part... the only difference is that you will be looking for a different mime type String..
What is the simplest and most robust way to get the user's current location in Android? http://stackoverflow.com/questions/3145089/what-is-the-simplest-and-most-robust-way-to-get-the-users-current-location-in-a may be disabled in application manifest. If any provider is available I start location listeners and timeout timer. It's 20 seconds in my example may not be enough for GPS so you can enlarge it. If I get update from location listener I use the..
How to programatically create and read WEP/EAP WiFi configurations in Android? http://stackoverflow.com/questions/4374862/how-to-programatically-create-and-read-wep-eap-wifi-configurations-in-android of open source projects and their developers. I would like to share this knowledge with all Since SO encourages this It's also perfectly fine to ask and answer your own question as long as you pretend you're on Jeopardy phrase it in the form..
Activity restart on rotation Android http://stackoverflow.com/questions/456211/activity-restart-on-rotation-android entire application is created so the Activity restarts on orientation or keyboard visibility changes won't trigger it. It's good practice to expose the instance of this class as a singleton and exposing the application variables you're initializing..
How do I obtain crash-data from my Android application? http://stackoverflow.com/questions/601503/how-do-i-obtain-crash-data-from-my-android-application android applications developers to help them get data from their applications when they crash or behave erroneously. It's easy to install in your app highly configurable and don't require you to host a server script anywhere... reports are sent..
Repeat a task with a time delay? http://stackoverflow.com/questions/6242268/repeat-a-task-with-a-time-delay display some text in the application depending on this variable value. This has to be done with a specific time delay. It's like Check status variable value Display some text Wait for 10 seconds Check status variable value Display some text Wait..
When to call activity context OR application context? http://stackoverflow.com/questions/7298731/when-to-call-activity-context-or-application-context Ms. Hackborn also agrees with this position . Here are reasons why not to use getApplicationContext wherever you go It's not a complete Context supporting everything that Activity does. Various things you will try to do with this Context will..
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