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2014/10/16 ¤W¤È 08:27:35
android Programming Glossary: whichDownload a file with Android, and showing the progress in a ProgressDialog http://stackoverflow.com/questions/3028306/download-a-file-with-android-and-showing-the-progress-in-a-progressdialog I will post most common ways it is up to you to decide which method is better for your app. 1. Use AsyncTask and show the.. from a service IntentService is a subclass of Service which spawns a thread to do background work from there you should.. etc. GingerBread brought a new feature DownloadManager which allows you to download files easily and delegate the hard work..
Strange out of memory issue while loading an image to a Bitmap object http://stackoverflow.com/questions/477572/strange-out-of-memory-issue-while-loading-an-image-to-a-bitmap-object activity to the result handler to relaunch my new activity which is nothing more than an image widget. The image preview on the..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables to declare global variables I am creating an application which requires login. I created the main and the login activity. In.. null login ... The onActivityResult method which is executed when the login form terminates looks like this @Override.. context. As you know each Activity is also a Context which is information about its execution environment in the broadest..
R cannot be resolved - Android error http://stackoverflow.com/questions/885009/r-cannot-be-resolved-android-error this would generate the incorrect import statement which would hide the R.java class that is automatically generated..
Android - basic gesture detection http://stackoverflow.com/questions/937313/android-basic-gesture-detection for each ImageView I add to be the main activity which implements View.OnClickListener . It seems infinitely more complicated..
http://stackoverflow.com/questions/9671546/asynctask-android-example everything in doInBackground inside of another thread which does not have access to the GUI where your views are. preExecute.. I noticed that your onClick listener does not check to see which View has been selected. I find the easiest way to do this is..
Understanding Fragment's setRetainInstance(boolean) http://stackoverflow.com/questions/11182180/understanding-fragments-setretaininstanceboolean Why doesn't it work with fragments on the back stack Which are the use cases where it makes sense to use this method android.. fragments were allowed to exist on the same backstack. Which are the use cases where it makes sense to use this method Retained..
Android: ProgressDialog.show() crashes with getApplicationContext http://stackoverflow.com/questions/1561803/android-progressdialog-show-crashes-with-getapplicationcontext android progressdialog share improve this question Which API version are you using If I'm right about what the problem..
Dialogs / AlertDialogs: How to “block execution” while dialog is up (.NET-style) http://stackoverflow.com/questions/2028697/dialogs-alertdialogs-how-to-block-execution-while-dialog-is-up-net-style charge of drawing and handling the events of your Dialog. Which means your dialog will be unresponsive. You will also cause..
How to obtain all details of a contact in Android http://stackoverflow.com/questions/2205246/how-to-obtain-all-details-of-a-contact-in-android Cursor managedCursor managedQuery contacts projection Which columns to return null Which rows to return all rows Selection.. contacts projection Which columns to return null Which rows to return all rows Selection arguments with a given ID..
How do I make links in a TextView clickable? http://stackoverflow.com/questions/2734270/how-do-i-make-links-in-a-textview-clickable But this does string name txtCredits www.google.com string Which is a bummer because I would much rather show a text link than..
OutOfMemoryError: bitmap size exceeds VM budget :- Android [duplicate] http://stackoverflow.com/questions/2928002/outofmemoryerror-bitmap-size-exceeds-vm-budget-android the Bitmap can be cleared opts.inInputShareable true Which kind of reference will be used to recover the Bitmap data after..
How to capture the android device screen content? [duplicate] http://stackoverflow.com/questions/3067586/how-to-capture-the-android-device-screen-content content and make an image file using the snapshot data Which API should I use or where could I find related resources BTW..
How to get a resource id with a known ressource name? http://stackoverflow.com/questions/3476430/how-to-get-a-resource-id-with-a-known-ressource-name a String or a Drawable by its name and not its int id. Which method would I use for this android resources share improve.. getIdentifier String name String defType String defPackage Which returns the integer of the specified resource name type package...
How to add calendar events in Android? http://stackoverflow.com/questions/3721963/how-to-add-calendar-events-in-android do I programmatically add an event to the user's calendar Which calendar Is there a common API they all share No no more than..
Android game engine for 2d and 3d games? [closed] http://stackoverflow.com/questions/4227759/android-game-engine-for-2d-and-3d-games available for Android The ones that I know is AndEngine. Which one is better for development If not both then will it better..
getApplication() vs. getApplicationContext() http://stackoverflow.com/questions/5018545/getapplication-vs-getapplicationcontext onReceive method you can only call getApplicationContext . Which also means that you are not guaranteed to have access to your..
http://stackoverflow.com/questions/5039500/android-overriding-home-key this type of notification Android already has sent the app Which is currently executing to the frozen state and it won't have..
How to use addr2line in Android http://stackoverflow.com/questions/5314036/how-to-use-addr2line-in-android C f e obj local armeabi libnativemaprender.so 0003deb4 Which gives you the location of the crash. Note The C flag is to demangle..
Store orientation to an array - and compare http://stackoverflow.com/questions/6368618/store-orientation-to-an-array-and-compare Array 1 5 3 1 Array 2 1 3 5 8 8 We measured 2 4 6 7 . Which array is the most similar to the newly measured Obviously the..
http://stackoverflow.com/questions/649154/save-bitmap-to-location .jpg Card Image barcodeNumber .jpg Card Image Which works fine to save to SD card but does not allow you to customize..
When to call activity context OR application context? http://stackoverflow.com/questions/7298731/when-to-call-activity-context-or-application-context each time the user tilts the phone or leave the app etc.. Which apparently the Garbage Collector GC doesn't catch and therefor..
Download a file with Android, and showing the progress in a ProgressDialog http://stackoverflow.com/questions/3028306/download-a-file-with-android-and-showing-the-progress-in-a-progressdialog this question There are many ways to download files. Following I will post most common ways it is up to you to decide which method is better for your app. 1. Use AsyncTask and show the download progress in a dialog This method will allow you to.. is the one that will allow us to update our thread from a service IntentService is a subclass of Service which spawns a thread to do background work from there you should know that a Service runs actually in the same thread of your.. about downloading the file manually handle threads streams etc. GingerBread brought a new feature DownloadManager which allows you to download files easily and delegate the hard work to the system. First let's see a utility method @param context..
Strange out of memory issue while loading an image to a Bitmap object http://stackoverflow.com/questions/477572/strange-out-of-memory-issue-while-loading-an-image-to-a-bitmap-object application returns from the activity back to the listview activity to the result handler to relaunch my new activity which is nothing more than an image widget. The image preview on the list view is being done with the cursor and ListAdapter ...
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables How to declare global variables I am creating an application which requires login. I created the main and the login activity. In the main activity onCreate method I added the following condition.. setContentView R.layout.main ... loadSettings if strSessionString null login ... The onActivityResult method which is executed when the login form terminates looks like this @Override public void onActivityResult int requestCode int resultCode.. way in Android is to associate your state with the Application context. As you know each Activity is also a Context which is information about its execution environment in the broadest sense. Your application also has a context and Android guarantees..
R cannot be resolved - Android error http://stackoverflow.com/questions/885009/r-cannot-be-resolved-android-error
Android - basic gesture detection http://stackoverflow.com/questions/937313/android-basic-gesture-detection For the simple click situation I need only set the onClickListener for each ImageView I add to be the main activity which implements View.OnClickListener . It seems infinitely more complicated to implement something that recognizes a fling. I..
http://stackoverflow.com/questions/9671546/asynctask-android-example This in the main is not good practice. The AsyncTask executes everything in doInBackground inside of another thread which does not have access to the GUI where your views are. preExecute and postExecute offer you access to GUI before and after.. text update after the doInBackground completes. EDIT I noticed that your onClick listener does not check to see which View has been selected. I find the easiest way to do this is via switch statements. I have a complete class edited below..
Understanding Fragment's setRetainInstance(boolean) http://stackoverflow.com/questions/11182180/understanding-fragments-setretaininstanceboolean Will the fragment be destroyed when the user leaves the activity Why doesn't it work with fragments on the back stack Which are the use cases where it makes sense to use this method android fragment share improve this question First of all.. might get tricky if both retained fragments and non retained fragments were allowed to exist on the same backstack. Which are the use cases where it makes sense to use this method Retained fragments can be quite useful for propagating state information..
Android: ProgressDialog.show() crashes with getApplicationContext http://stackoverflow.com/questions/1561803/android-progressdialog-show-crashes-with-getapplicationcontext this is happening I'm calling this from the onCreate method. android progressdialog share improve this question Which API version are you using If I'm right about what the problem is then this was fixed in Android 1.6 API version 4 . It looks..
Dialogs / AlertDialogs: How to “block execution” while dialog is up (.NET-style) http://stackoverflow.com/questions/2028697/dialogs-alertdialogs-how-to-block-execution-while-dialog-is-up-net-style are displaying a Dialog you will block the thread that's in charge of drawing and handling the events of your Dialog. Which means your dialog will be unresponsive. You will also cause ANRs if the user takes more than a few seconds to click the..
How to obtain all details of a contact in Android http://stackoverflow.com/questions/2205246/how-to-obtain-all-details-of-a-contact-in-android id of the Contact to return. long id 3 Make the query. Cursor managedCursor managedQuery contacts projection Which columns to return null Which rows to return all rows Selection arguments with a given ID ContactsContract.Contacts._ID.. return. long id 3 Make the query. Cursor managedCursor managedQuery contacts projection Which columns to return null Which rows to return all rows Selection arguments with a given ID ContactsContract.Contacts._ID id Put the results in ascending..
How do I make links in a TextView clickable? http://stackoverflow.com/questions/2734270/how-do-i-make-links-in-a-textview-clickable name txtCredits a href http www.google.com Google a string But this does string name txtCredits www.google.com string Which is a bummer because I would much rather show a text link than show the full URL. android hyperlink android textview clickable..
OutOfMemoryError: bitmap size exceeds VM budget :- Android [duplicate] http://stackoverflow.com/questions/2928002/outofmemoryerror-bitmap-size-exceeds-vm-budget-android true Tell to gc that whether it needs free memory the Bitmap can be cleared opts.inInputShareable true Which kind of reference will be used to recover the Bitmap data after being clear when it will be used in the future opts.inTempStorage..
How to capture the android device screen content? [duplicate] http://stackoverflow.com/questions/3067586/how-to-capture-the-android-device-screen-content screenshot on Android How to capture the android device screen content and make an image file using the snapshot data Which API should I use or where could I find related resources BTW not camera snapshot but device screen android screen capture..
How to get a resource id with a known ressource name? http://stackoverflow.com/questions/3476430/how-to-get-a-resource-id-with-a-known-ressource-name with a known ressource name I want to access a resource like a String or a Drawable by its name and not its int id. Which method would I use for this android resources share improve this question It will be something like R.drawable.resourcename..
How to add calendar events in Android? http://stackoverflow.com/questions/3721963/how-to-add-calendar-events-in-android 2.x. android calendar share improve this question how do I programmatically add an event to the user's calendar Which calendar Is there a common API they all share No no more than there is a common API they all share for Windows calendar..
Android game engine for 2d and 3d games? [closed] http://stackoverflow.com/questions/4227759/android-game-engine-for-2d-and-3d-games be used in development. Also is there any other game engine available for Android The ones that I know is AndEngine. Which one is better for development If not both then will it better to develop using core Android API rather than using any game..
getApplication() vs. getApplicationContext() http://stackoverflow.com/questions/5018545/getapplication-vs-getapplicationcontext which is not a context but is given a context in its onReceive method you can only call getApplicationContext . Which also means that you are not guaranteed to have access to your application in a BroadcastReceiver. When looking at the Android..
http://stackoverflow.com/questions/5039500/android-overriding-home-key to launch the Home Screen. Both are different things. in this type of notification Android already has sent the app Which is currently executing to the frozen state and it won't have any control over what's happening. This is as far as I know...
How to use addr2line in Android http://stackoverflow.com/questions/5314036/how-to-use-addr2line-in-android address Or for the case above arm linux androideabi addr2line C f e obj local armeabi libnativemaprender.so 0003deb4 Which gives you the location of the crash. Note The C flag is to demangle C code Use the .so file under obj local armeabi since..
Store orientation to an array - and compare http://stackoverflow.com/questions/6368618/store-orientation-to-an-array-and-compare arrays. In the database we already have the following 2 arrays Array 1 5 3 1 Array 2 1 3 5 8 8 We measured 2 4 6 7 . Which array is the most similar to the newly measured Obviously the second array is similar to the newly measured and the first..
http://stackoverflow.com/questions/649154/save-bitmap-to-location MediaStore.Images.Media.insertImage getContentResolver bm barcodeNumber .jpg Card Image barcodeNumber .jpg Card Image Which works fine to save to SD card but does not allow you to customize the folder. android bitmap save share improve this..
When to call activity context OR application context? http://stackoverflow.com/questions/7298731/when-to-call-activity-context-or-application-context context points to an Activity that is being destroyed each time the user tilts the phone or leave the app etc.. Which apparently the Garbage Collector GC doesn't catch and therefor uses too much memory.. But can anyone please come up with..
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