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2014/10/16 ¤W¤È 08:20:56
android Programming Glossary: otherwiseINSTALL_FAILED_MISSING_SHARED_LIBRARY error in Android http://stackoverflow.com/questions/1113088/install-failed-missing-shared-library-error-in-android create your AVD with Target as Google APIs Google Inc. otherwise it will again failed. Create Android Project in Eclipse File..
Appropriate multiplication of matrices for rotation/translation http://stackoverflow.com/questions/11965593/appropriate-multiplication-of-matrices-for-rotation-translation is a 4x4 matrix and '_uBodyCentre' is a 4 element vector otherwise these could be problematic as well. share improve this answer..
Using the Android RecognizerIntent with a bluetooth headset http://stackoverflow.com/questions/14991158/using-the-android-recognizerintent-with-a-bluetooth-headset mIsOnHeadsetSco false Need to call stopBluetoothSco otherwise startBluetoothSco will not be successful. mAudioManager.stopBluetoothSco..
Detect rotation of Android phone in the browser with javascript http://stackoverflow.com/questions/1649086/detect-rotation-of-android-phone-in-the-browser-with-javascript Detect whether device supports orientationchange event otherwise fall back to the resize event. var supportsOrientationChange..
Can we delete an SMS in Android before it reaches the inbox? http://stackoverflow.com/questions/1741628/can-we-delete-an-sms-in-android-before-it-reaches-the-inbox should be done with data SMS or for applications which otherwise improve the user experience by processing specially formatted..
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 If the user presses Yes the whole method should be aborted otherwise it should continue execution. How do you solve that nicely Regards..
How to have Android Service communicate with Activity http://stackoverflow.com/questions/2463175/how-to-have-android-service-communicate-with-activity the reference to you listener object in Activity.onPause otherwise an instance of your activity context will leak not good. NOTE..
Android: out of memory exception in Gallery http://stackoverflow.com/questions/3238388/android-out-of-memory-exception-in-gallery try Make sure we set anti aliasing otherwise we get jaggies BitmapDrawable drawable BitmapDrawable i.getDrawable..
Singletons vs. Application Context in Android? http://stackoverflow.com/questions/3826905/singletons-vs-application-context-in-android to Android. Am I correct What's different in DalvikVM otherwise EDIT I would like to have opinions on several aspects involved..
Multiple Table SQLite DB Adapter(s) in Android? http://stackoverflow.com/questions/4063510/multiple-table-sqlite-db-adapters-in-android is successfully created return the new rowId for that car otherwise return a 1 to indicate failure. @param name @param model @param.. given rowId @param rowId @return true if deleted false otherwise public boolean deleteCar long rowId return this.mDb.delete DATABASE_TABLE.. @return true if the note was successfully updated false otherwise public boolean updateCar long rowId String name String model..
launch facebook app from other app http://stackoverflow.com/questions/4191492/launch-facebook-app-from-other-app will only show the info if you have added it as friend. otherwise redirects to another activity facebook facebook.com notifications..
Android Min SDK Version vs. Target SDK Version http://stackoverflow.com/questions/4568267/android-min-sdk-version-vs-target-sdk-version that are not required for the target version which may otherwise be turned on in order to maintain forward compatibility or enable..
Making sense of LayoutInflater http://stackoverflow.com/questions/5026926/making-sense-of-layoutinflater If root was supplied and attachToRoot is true this is root otherwise it is the root of the inflated XML file. Now for the sample..
enable/disable zoom in Android WebView http://stackoverflow.com/questions/5125851/enable-disable-zoom-in-android-webview there is more than one pointer I call setSupportZoom true otherwise I call setSupportZoom false . I then call the super.OnTouchEvent..
Android “Only the original thread that created a view hierarchy can touch its views.” http://stackoverflow.com/questions/5161951/android-only-the-original-thread-that-created-a-view-hierarchy-can-touch-its-vi block. Include only the smallest amount of code possible otherwise you start to defeat the purpose of the background thread. share..
One Google Maps key for all developers? http://stackoverflow.com/questions/7444392/one-google-maps-key-for-all-developers but on different computers we must use different API keys otherwise the MapView doesn't display anything. Is there a way to set..
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 anyway above . It is difficult to obtain a reference otherwise because the fragment is added by the adapter and not you personally...
R cannot be resolved - Android error http://stackoverflow.com/questions/885009/r-cannot-be-resolved-android-error use resources especially when you ask Eclipse to sort or otherwise manage imports. This will cause your make to break. Look out..
AutoCompleteTextView backed by CursorLoader http://stackoverflow.com/questions/12854336/autocompletetextview-backed-by-cursorloader 2 Dropdown MultiAutoCompleteTextView tokenizer Otherwise my suggestion would be to make a contribution submitting a patch..
Unexpected value from nativeGetEnabledTags: 0 http://stackoverflow.com/questions/13416142/unexpected-value-from-nativegetenabledtags-0 Log Message field of the filter ^ . nativeGetEnabledTags . Otherwise it is so spammed it's almost useless. Following Laksh suggestion..
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 infoWindow consumed the touch event then just return true. Otherwise pass this event to the super class and return it's result return..
How do I return a boolean from AsyncTask? http://stackoverflow.com/questions/16752073/how-do-i-return-a-boolean-from-asynctask the code inside it will run on the UI Thread. Otherwise you need to post a Runnable through an Handler share improve..
How to close Android application? http://stackoverflow.com/questions/2092951/how-to-close-android-application unless a navigation event by the user or the app occurs. Otherwise the user or the app navigated to this activity so the HOME key.. If the HOME key was pressed then the app will be killed. Otherwise the user or the app is navigating away from this activity so.. then the app will be killed either safely or quickly. Otherwise the user or the app is navigating away from the activity so..
How to send email from my Android application? http://stackoverflow.com/questions/2197741/how-to-send-email-from-my-android-application are no email clients installed. Toast.LENGTH_SHORT .show Otherwise you'll have to write your own client. share improve this answer..
http://stackoverflow.com/questions/2317428/android-i-want-to-shake-it Earth and initializes the acceleration to earth gravity. Otherwise you would get a strong shake when the application starts and..
How to return a result (startActivityForResult) from a TabHost Activity? http://stackoverflow.com/questions/2497205/how-to-return-a-result-startactivityforresult-from-a-tabhost-activity the result if there is a mParent property set to null . Otherwise the result is lost. public void finish if mParent null int resultCode..
How can I use the paid version of my app as a “key” to the free version? http://stackoverflow.com/questions/3062946/how-can-i-use-the-paid-version-of-my-app-as-a-key-to-the-free-version signature matches installed premium package signature. Otherwise somebody would be able to install unsigned app with package..
How to prevent Custom Views from losing state across screen orientation changes http://stackoverflow.com/questions/3542333/how-to-prevent-custom-views-from-losing-state-across-screen-orientation-changes when you give it an id in xml or call setId manually. Otherwise you have to call View#onSaveInstanceState and write the Parcelable..
How do I prevent an Android device from going to sleep programmatically? http://stackoverflow.com/questions/3723634/how-do-i-prevent-an-android-device-from-going-to-sleep-programmatically lock when you're done with it or not in the foreground . Otherwise your app can potentially cause some serious battery drain and..
Auto Scale TextView Text to Fit within Bounds http://stackoverflow.com/questions/5033012/auto-scale-textview-text-to-fit-within-bounds fit on a single line clear it if lastLine 0 setText Otherwise trim to the previous line and add an ellipsis else int start..
TelephonyManager.getLine1Number() failing? http://stackoverflow.com/questions/5134398/telephonymanager-getline1number-failing if SIM card present cannot read the cell number ask user . Otherwise we will keep bugging the user that doesn't a SIM card in the..
Why does ContentResolver.requestSync not trigger a sync? http://stackoverflow.com/questions/5253858/why-does-contentresolver-requestsync-not-trigger-a-sync it behooves you to figure out how to get this working Otherwise you'll end up always performing two syncs when only one is needed...
Android backup/restore: how to backup an internal database? http://stackoverflow.com/questions/5282936/android-backup-restore-how-to-backup-an-internal-database database has already been upgraded on backup or restore Otherwise the expected schema might not match. android database restore..
INSTALL_FAILED_MISSING_SHARED_LIBRARY error in Android http://stackoverflow.com/questions/1113088/install-failed-missing-shared-library-error-in-android Target Google APIs Google Inc. API Level X IMPORTANT You must create your AVD with Target as Google APIs Google Inc. otherwise it will again failed. Create Android Project in Eclipse File New Android Project and select Google APIs Build Target. add..
Appropriate multiplication of matrices for rotation/translation http://stackoverflow.com/questions/11965593/appropriate-multiplication-of-matrices-for-rotation-translation
Using the Android RecognizerIntent with a bluetooth headset http://stackoverflow.com/questions/14991158/using-the-android-recognizerintent-with-a-bluetooth-headset want to do anything. Thus the if condition. if mIsStarting mIsOnHeadsetSco false Need to call stopBluetoothSco otherwise startBluetoothSco will not be successful. mAudioManager.stopBluetoothSco override this if you want to do other thing..
Detect rotation of Android phone in the browser with javascript http://stackoverflow.com/questions/1649086/detect-rotation-of-android-phone-in-the-browser-with-javascript for either the 'orientationchange' or 'resize' event on window Detect whether device supports orientationchange event otherwise fall back to the resize event. var supportsOrientationChange onorientationchange in window orientationEvent supportsOrientationChange..
Can we delete an SMS in Android before it reaches the inbox? http://stackoverflow.com/questions/1741628/can-we-delete-an-sms-in-android-before-it-reaches-the-inbox services which are provisioned via SMS though generally this should be done with data SMS or for applications which otherwise improve the user experience by processing specially formatted messages in order to show them in a nice Android specific..
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 Do you want to continue with the options Yes and No . If the user presses Yes the whole method should be aborted otherwise it should continue execution. How do you solve that nicely Regards android share improve this question Ted you don't..
How to have Android Service communicate with Activity http://stackoverflow.com/questions/2463175/how-to-have-android-service-communicate-with-activity . The last thing you need to do is to remove the reference to you listener object in Activity.onPause otherwise an instance of your activity context will leak not good. NOTE This method is only useful when your application Activity..
Android: out of memory exception in Gallery http://stackoverflow.com/questions/3238388/android-out-of-memory-exception-in-gallery .getScreenHeight 2 i.setScaleType ImageView.ScaleType.CENTER_INSIDE try Make sure we set anti aliasing otherwise we get jaggies BitmapDrawable drawable BitmapDrawable i.getDrawable drawable.setAntiAlias true catch Exception e Log.v..
Singletons vs. Application Context in Android? http://stackoverflow.com/questions/3826905/singletons-vs-application-context-in-android pattern with web application not a good idea but applied to Android. Am I correct What's different in DalvikVM otherwise EDIT I would like to have opinions on several aspects involved Synchronization Reusability Testing Thanks in advance. java..
Multiple Table SQLite DB Adapter(s) in Android? http://stackoverflow.com/questions/4063510/multiple-table-sqlite-db-adapters-in-android close this.mDbHelper.close Create a new car. If the car is successfully created return the new rowId for that car otherwise return a 1 to indicate failure. @param name @param model @param year @return rowId or 1 if failed public long createCar.. DATABASE_TABLE null initialValues Delete the car with the given rowId @param rowId @return true if deleted false otherwise public boolean deleteCar long rowId return this.mDb.delete DATABASE_TABLE ROW_ID rowId null 0 NON NLS 1 Return a Cursor.. the car. @param rowId @param name @param model @param year @return true if the note was successfully updated false otherwise public boolean updateCar long rowId String name String model String year ContentValues args new ContentValues args.put NAME..
launch facebook app from other app http://stackoverflow.com/questions/4191492/launch-facebook-app-from-other-app facebook.com wall facebook facebook.com wall user 544410940 will only show the info if you have added it as friend. otherwise redirects to another activity facebook facebook.com notifications facebook facebook.com photos facebook facebook.com album..
Android Min SDK Version vs. Target SDK Version http://stackoverflow.com/questions/4568267/android-min-sdk-version-vs-target-sdk-version version allows the platform to disable compatibility settings that are not required for the target version which may otherwise be turned on in order to maintain forward compatibility or enable newer features that are not available to older applications...
Making sense of LayoutInflater http://stackoverflow.com/questions/5026926/making-sense-of-layoutinflater the XML. Returns The root View of the inflated hierarchy. If root was supplied and attachToRoot is true this is root otherwise it is the root of the inflated XML file. Now for the sample layout and code. Main layout main.xml xml version 1.0 encoding..
enable/disable zoom in Android WebView http://stackoverflow.com/questions/5125851/enable-disable-zoom-in-android-webview pointers there are using MotionEvent.getPointerCount . If there is more than one pointer I call setSupportZoom true otherwise I call setSupportZoom false . I then call the super.OnTouchEvent . This will effectively disable zooming when scrolling..
Android “Only the original thread that created a view hierarchy can touch its views.” http://stackoverflow.com/questions/5161951/android-only-the-original-thread-that-created-a-view-hierarchy-can-touch-its-vi
One Google Maps key for all developers? http://stackoverflow.com/questions/7444392/one-google-maps-key-for-all-developers developers We are using a Google MapView in our application but on different computers we must use different API keys otherwise the MapView doesn't display anything. Is there a way to set one key for all developers android google maps android mapview..
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 is not so crazy and not so unlike the normal way to use fragments anyway above . It is difficult to obtain a reference otherwise because the fragment is added by the adapter and not you personally. Just make sure that the offscreenPageLimit is high..
R cannot be resolved - Android error http://stackoverflow.com/questions/885009/r-cannot-be-resolved-android-error an import android.R statement at the top of your files that use resources especially when you ask Eclipse to sort or otherwise manage imports. This will cause your make to break. Look out for these erroneous import statements and delete them. While..
AutoCompleteTextView backed by CursorLoader http://stackoverflow.com/questions/12854336/autocompletetextview-backed-by-cursorloader as you can check here 1 Example MultiAutoCompleteTextView 2 Dropdown MultiAutoCompleteTextView tokenizer Otherwise my suggestion would be to make a contribution submitting a patch request about this problem missing feature to Android core..
Unexpected value from nativeGetEnabledTags: 0 http://stackoverflow.com/questions/13416142/unexpected-value-from-nativegetenabledtags-0 the LogCat output with the following expression on the by Log Message field of the filter ^ . nativeGetEnabledTags . Otherwise it is so spammed it's almost useless. Following Laksh suggestion if you want to filter this always without having to always..
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 infoWindow ret infoWindow.dispatchTouchEvent copyEv If the infoWindow consumed the touch event then just return true. Otherwise pass this event to the super class and return it's result return ret super.dispatchTouchEvent ev All this will make the..
How do I return a boolean from AsyncTask? http://stackoverflow.com/questions/16752073/how-do-i-return-a-boolean-from-asynctask
How to close Android application? http://stackoverflow.com/questions/2092951/how-to-close-android-application launched then assume that the HOME key will be pressed next unless a navigation event by the user or the app occurs. Otherwise the user or the app navigated to this activity so the HOME key was not pressed. UIHelper.checkJustLaunced public void finish.. void onStop super.onStop Check if the HOME key was pressed. If the HOME key was pressed then the app will be killed. Otherwise the user or the app is navigating away from this activity so assume that the HOME key will be pressed next unless a navigation.. Check if the HOME key was pressed. If the HOME key was pressed then the app will be killed either safely or quickly. Otherwise the user or the app is navigating away from the activity so assume that the HOME key will be pressed next unless a navigation..
How to send email from my Android application? http://stackoverflow.com/questions/2197741/how-to-send-email-from-my-android-application
http://stackoverflow.com/questions/2317428/android-i-want-to-shake-it resources CPU Battery . The code assumes we are on planet Earth and initializes the acceleration to earth gravity. Otherwise you would get a strong shake when the application starts and hits the ground from free fall. However the code gets used..
How to return a result (startActivityForResult) from a TabHost Activity? http://stackoverflow.com/questions/2497205/how-to-return-a-result-startactivityforresult-from-a-tabhost-activity Activity class you will see that finish method only sends back the result if there is a mParent property set to null . Otherwise the result is lost. public void finish if mParent null int resultCode Intent resultData synchronized this resultCode mResultCode..
How can I use the paid version of my app as a “key” to the free version? http://stackoverflow.com/questions/3062946/how-can-i-use-the-paid-version-of-my-app-as-a-key-to-the-free-version your paid package is installed. AND ensure your free package signature matches installed premium package signature. Otherwise somebody would be able to install unsigned app with package name matching your paid package name and unlock premium this..
How to prevent Custom Views from losing state across screen orientation changes http://stackoverflow.com/questions/3542333/how-to-prevent-custom-views-from-losing-state-across-screen-orientation-changes for you if View#getId returns a value 0. This happens when you give it an id in xml or call setId manually. Otherwise you have to call View#onSaveInstanceState and write the Parcelable returned to the parcel you get in Activity#onSaveInstanceState..
How do I prevent an Android device from going to sleep programmatically? http://stackoverflow.com/questions/3723634/how-do-i-prevent-an-android-device-from-going-to-sleep-programmatically when using wakelocks. Ensure that you always release the lock when you're done with it or not in the foreground . Otherwise your app can potentially cause some serious battery drain and CPU usage. Edit to add You also need to be sure you have the..
Auto Scale TextView Text to Fit within Bounds http://stackoverflow.com/questions/5033012/auto-scale-textview-text-to-fit-within-bounds layout.getLineForVertical height 1 If the text would not even fit on a single line clear it if lastLine 0 setText Otherwise trim to the previous line and add an ellipsis else int start layout.getLineStart lastLine int end layout.getLineEnd lastLine..
TelephonyManager.getLine1Number() failing? http://stackoverflow.com/questions/5134398/telephonymanager-getline1number-failing
Why does ContentResolver.requestSync not trigger a sync? http://stackoverflow.com/questions/5253858/why-does-contentresolver-requestsync-not-trigger-a-sync double sync. If you're feeding data into a ContentProvider it behooves you to figure out how to get this working Otherwise you'll end up always performing two syncs when only one is needed. 8. Feel happy Once you have all this xml metadata in..
Android backup/restore: how to backup an internal database? http://stackoverflow.com/questions/5282936/android-backup-restore-how-to-backup-an-internal-database user stuck at some now unreachable point. Can I be sure the database has already been upgraded on backup or restore Otherwise the expected schema might not match. android database restore database restore android backup service share improve this..
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