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2014/10/16 ¤W¤È 08:18:02
android Programming Glossary: logicSimpleCursorTreeAdapter and CursorLoader for ExpandableListView http://stackoverflow.com/questions/10611927/simplecursortreeadapter-and-cursorloader-for-expandablelistview to pass into the initLoader call. I also changed the logic to call restartLoader only when loader is not null and loader..
Jelly Bean DatePickerDialog — is there a way to cancel? http://stackoverflow.com/questions/11444238/jelly-bean-datepickerdialog-is-there-a-way-to-cancel works fine across config changes and it routes the code logic to the default implementation in previous Android versions not..
Appropriate multiplication of matrices for rotation/translation http://stackoverflow.com/questions/11965593/appropriate-multiplication-of-matrices-for-rotation-translation I will modify that later. I have tried to demonstrate logic http www.pixdip.com opengles images.php android opengl es opengl..
How should I validate an e-mail address on Android? http://stackoverflow.com/questions/1819142/how-should-i-validate-an-e-mail-address-on-android check that it's in the form @ If you have some business logic specific validation then you could perform that using a regex..
How to check visibility of software keyboard in Android? http://stackoverflow.com/questions/2150078/how-to-check-visibility-of-software-keyboard-in-android class into one which overrides onMeasure . The basic logic is that if the layout finds itself filling significantly less..
How to draw an overlay on a SurfaceView used by Camera on Android? http://stackoverflow.com/questions/2933882/how-to-draw-an-overlay-on-a-surfaceview-used-by-camera-on-android allow stacking of widgets on the Z axis Move your drawing logic into a separate custom View class Add an instance of the custom..
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 Location location Somebody may also want to modify my logic. For example if you get update from Network provider don't stop..
Is AsyncTask really conceptually flawed or am I just missing something? http://stackoverflow.com/questions/3357477/is-asynctask-really-conceptually-flawed-or-am-i-just-missing-something exception you even risk creating a memory leak. Unless my logic is flawed here this translates to onPostExecute is entirely..
Make an HTTP request with android http://stackoverflow.com/questions/3505930/make-an-http-request-with-android out out.close String responseString out.toString ..more logic else Closes the connection. response.getEntity .getContent .close..
How to hook into the Power button in Android? http://stackoverflow.com/questions/3703071/how-to-hook-into-the-power-button-in-android so you may want to trigger on onKeyUp instead or other logic to prevent acting upon a series of onKeyDown calls when the..
http://stackoverflow.com/questions/3965484/custom-checkbox-image-android an empty star. Do I have to use an imageview and do my own logic myself android checkbox share improve this question Checkboxes..
How to implement Android Pull-to-Refresh http://stackoverflow.com/questions/4583484/how-to-implement-android-pull-to-refresh https github.com johannilsson android pulltorefresh . Main logic is implemented in PullToRefreshListView that extends ListView..
Why does ContentResolver.requestSync not trigger a sync? http://stackoverflow.com/questions/5253858/why-does-contentresolver-requestsync-not-trigger-a-sync perform the sync. mySyncAdapter is where the real sync logic itself is stored. It gets called onPerformSync gets called when..
How to handle button clicks using the xml onClick within Fragments http://stackoverflow.com/questions/6091194/how-to-handle-button-clicks-using-the-xml-onclick-within-fragments can use view.getId and a switch statement to do the button logic. With the introduction of Honeycomb I'm breaking these Activities..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables big tangled mess of what should be independent application logic. This is certainly not incorrect but this is not a reason for.. big tangled mess of what should be independent application logic. As before this is not incorrect but only further points out..
ViewPager and fragments ??what's the right way to store fragment's state? http://stackoverflow.com/questions/7951730/viewpager-and-fragments-whats-the-right-way-to-store-fragments-state state Fragments seem to be very nice for separetion of UI logic into some modules. But along with ViewPager it's lifecycle is.. Those fragments could implement a little bit different logic for other submain activities so fragments data is filled via.. from the super call before returning it it has the logic to find the fragment if already present . For a fuller picture..
SimpleCursorTreeAdapter and CursorLoader for ExpandableListView http://stackoverflow.com/questions/10611927/simplecursortreeadapter-and-cursorloader-for-expandablelistview groupCursor position not the value of ContactsContract.Groups._ID to pass into the initLoader call. I also changed the logic to call restartLoader only when loader is not null and loader isReset is false. protected Cursor getChildrenCursor Cursor..
Jelly Bean DatePickerDialog — is there a way to cancel? http://stackoverflow.com/questions/11444238/jelly-bean-datepickerdialog-is-there-a-way-to-cancel issue the listener being called in the framework class works fine across config changes and it routes the code logic to the default implementation in previous Android versions not plagued by this bug see class source . Original answer kept..
Appropriate multiplication of matrices for rotation/translation http://stackoverflow.com/questions/11965593/appropriate-multiplication-of-matrices-for-rotation-translation own centres not the centre of object which is _playerCentre I will modify that later. I have tried to demonstrate logic http www.pixdip.com opengles images.php android opengl es opengl es 2.0 linear algebra share improve this question ..
How should I validate an e-mail address on Android? http://stackoverflow.com/questions/1819142/how-should-i-validate-an-e-mail-address-on-android valid. If you want to perform some basic checks you could just check that it's in the form @ If you have some business logic specific validation then you could perform that using a regex e.g. must be a gmail.com account or something. share improve..
How to check visibility of software keyboard in Android? http://stackoverflow.com/questions/2150078/how-to-check-visibility-of-software-keyboard-in-android is quite often then what I do is customize my top level layout class into one which overrides onMeasure . The basic logic is that if the layout finds itself filling significantly less than the total area of the window then a soft keyboard is..
How to draw an overlay on a SurfaceView used by Camera on Android? http://stackoverflow.com/questions/2933882/how-to-draw-an-overlay-on-a-surfaceview-used-by-camera-on-android RelativeLayout in your layout XML file since both of those allow stacking of widgets on the Z axis Move your drawing logic into a separate custom View class Add an instance of the custom View class to the layout XML file as a child of the FrameLayout..
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 abstract class LocationResult public abstract void gotLocation Location location Somebody may also want to modify my logic. For example if you get update from Network provider don't stop listeners but continue waiting. GPS gives more accurate..
Is AsyncTask really conceptually flawed or am I just missing something? http://stackoverflow.com/questions/3357477/is-asynctask-really-conceptually-flawed-or-am-i-just-missing-something have been destroyed and any UI interaction will fail with an exception you even risk creating a memory leak. Unless my logic is flawed here this translates to onPostExecute is entirely useless because what good is it for this method to run on the..
Make an HTTP request with android http://stackoverflow.com/questions/3505930/make-an-http-request-with-android out new ByteArrayOutputStream response.getEntity .writeTo out out.close String responseString out.toString ..more logic else Closes the connection. response.getEntity .getContent .close throw new IOException statusLine.getReasonPhrase If you..
How to hook into the Power button in Android? http://stackoverflow.com/questions/3703071/how-to-hook-into-the-power-button-in-android onKeyDown will fire multiple times before onKeyLongPress does so you may want to trigger on onKeyUp instead or other logic to prevent acting upon a series of onKeyDown calls when the user is really holding it down. I think this next part is for..
http://stackoverflow.com/questions/3965484/custom-checkbox-image-android when checked is a filled in star. And when unchecked is an empty star. Do I have to use an imageview and do my own logic myself android checkbox share improve this question Checkboxes being children of Button you can just give your checkbox..
How to implement Android Pull-to-Refresh http://stackoverflow.com/questions/4583484/how-to-implement-android-pull-to-refresh from complete but demonstrates a possible implementation https github.com johannilsson android pulltorefresh . Main logic is implemented in PullToRefreshListView that extends ListView . Internally it controls the scrolling of a header view using..
Why does ContentResolver.requestSync not trigger a sync? http://stackoverflow.com/questions/5253858/why-does-contentresolver-requestsync-not-trigger-a-sync itself is. 3. Provide a class SyncAdapter to actually perform the sync. mySyncAdapter is where the real sync logic itself is stored. It gets called onPerformSync gets called when it's time to sync. I figure you already have this in place...
How to handle button clicks using the xml onClick within Fragments http://stackoverflow.com/questions/6091194/how-to-handle-button-clicks-using-the-xml-onclick-within-fragments XML. android onClick myClickMethod Within that method you can use view.getId and a switch statement to do the button logic. With the introduction of Honeycomb I'm breaking these Activities into Fragments which can be reused inside many different..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables future as you find your Application object becoming this big tangled mess of what should be independent application logic. This is certainly not incorrect but this is not a reason for choosing Singleton over Application subclass. In fact it is.. future as you find your Application object becoming this big tangled mess of what should be independent application logic. As before this is not incorrect but only further points out that there is no concrete benefit to using a Singleton instead..
ViewPager and fragments ??what's the right way to store fragment's state? http://stackoverflow.com/questions/7951730/viewpager-and-fragments-whats-the-right-way-to-store-fragments-state and fragments what's the right way to store fragment's state Fragments seem to be very nice for separetion of UI logic into some modules. But along with ViewPager it's lifecycle is still misty for me. So Guru thoughts are badly needed Edit.. below Scope Main activity has a ViewPager with fragments. Those fragments could implement a little bit different logic for other submain activities so fragments data is filled via callback interface inside activity. And everything works fine.. View int and save a reference to the fragment returned from the super call before returning it it has the logic to find the fragment if already present . For a fuller picture have a look at some of the source of FragmentPagerAdapter..
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