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2014/10/16 ¤W¤È 08:11:09
android Programming Glossary: checksDo fragments really need an empty constructor? http://stackoverflow.com/questions/10450348/do-fragments-really-need-an-empty-constructor Class.html#newInstance Explains why upon instantiation it checks that the accessor is public and that that class loader allows..
Jelly Bean DatePickerDialog — is there a way to cancel? http://stackoverflow.com/questions/11444238/jelly-bean-datepickerdialog-is-there-a-way-to-cancel that I posted above. And since DatePickerDialog.java checks for a null whenever it reads mCallback since the days of API..
How to delete files created by the application on uninstall? http://stackoverflow.com/questions/1222269/how-to-delete-files-created-by-the-application-on-uninstall Another approach could be to have another application that checks whether this application is installed or not. If not it can..
How to set mobile system time and date in android? http://stackoverflow.com/questions/1332269/how-to-set-mobile-system-time-and-date-in-android permissions do not matter there's no entity involved which checks proper permissions. This is the way the internal preinstalled..
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 then it's not valid. If you want to perform some basic checks you could just check that it's in the form @ If you have some..
Android ACTION_IMAGE_CAPTURE Intent http://stackoverflow.com/questions/1910608/android-action-image-capture-intent then when i launch image capture i create an intent that checks for the bug. Intent i new Intent android.provider.MediaStore.ACTION_IMAGE_CAPTURE..
How to get cell service signal strength in Android? http://stackoverflow.com/questions/1967136/how-to-get-cell-service-signal-strength-in-android am trying to write a very simple Android application that checks the signal strength of the current cell. So far I have only..
Remove all debug logging calls before publishing: are there tools to do this? http://stackoverflow.com/questions/2446248/remove-all-debug-logging-calls-before-publishing-are-there-tools-to-do-this I find a far easier solution is to forget all the if checks all over the place and just use ProGuard to strip out any Log.d..
How to always run a service in the background http://stackoverflow.com/questions/2566350/how-to-always-run-a-service-in-the-background always running in the background every 5 min. the service checks the current location of the device and calls a web service if.. It is also bad design . every 5 min. the service checks the current location of the device and calls a web service Use..
How can I refresh MediaStore on Android? http://stackoverflow.com/questions/3300137/how-can-i-refresh-mediastore-on-android app iterates through all the playlists in mediastore and checks the length of the _data field. I discovered that for all the..
Android - Camera preview is sideways http://stackoverflow.com/questions/3841122/android-camera-preview-is-sideways put in logging statements in each of the rotation checks to say what the rotation was and then debugged on the device..
What optimizations can I expect from Dalvik and the Android toolchain? http://stackoverflow.com/questions/4912695/what-optimizations-can-i-expect-from-dalvik-and-the-android-toolchain induction variables are optimized so that null and range checks are only performed in the loop prologue. One entry inline cache..
getViewTypeCount and getItemViewType methods of ArrayAdapter http://stackoverflow.com/questions/5300962/getviewtypecount-and-getitemviewtype-methods-of-arrayadapter for row n the row it is about to display. The framework checks its recycled views pool for views of row n 's type. It doesn't..
Android detect if device has internet connection http://stackoverflow.com/questions/6493517/android-detect-if-device-has-internet-connection question You are right. The code you've provided only checks if there is a network connection. The best way to check if there..
Android Paint: .measureText() vs .getTextBounds() http://stackoverflow.com/questions/7549182/android-paint-measuretext-vs-gettextbounds SkPaintGlue getStringBounds Now your study checks where these methods differ. After some param checks both call.. study checks where these methods differ. After some param checks both call function SkPaint measureText in Skia Lib part of Android..
Getting an issue while checking the dynamically generated checkbox through list view http://stackoverflow.com/questions/7738527/getting-an-issue-while-checking-the-dynamically-generated-checkbox-through-list candidate name with checkboxs automatically 10th checkbox checks itself and this also happens with 2nd 11th 3rd 12th and so on..
Creating an Android trial application that expires after a fixed time period http://stackoverflow.com/questions/995719/creating-an-android-trial-application-that-expires-after-a-fixed-time-period webserver and such. It is always good practice to do these checks in the onCreate. If the expiration has ended popup an AlertDialog..
Using cookies with Android volley library http://stackoverflow.com/questions/16680701/using-cookies-with-android-volley-library public RequestQueue getRequestQueue return _requestQueue Checks the response headers for session cookie and saves it if it finds..
Handling registration ID changes in Google Cloud Messaging on Android http://stackoverflow.com/questions/16838654/handling-registration-id-changes-in-google-cloud-messaging-on-android or registration expired. return return registrationId Checks if the registration has expired. p To avoid the scenario where..
In GoogleCloudMessaging API, how to handle the renewal or expiration of registration ID? http://stackoverflow.com/questions/17335572/in-googlecloudmessaging-api-how-to-handle-the-renewal-or-expiration-of-registra or registration expired. return return registrationId Checks if the registration has expired. p To avoid the scenario where..
Android Null Exception on Calling function http://stackoverflow.com/questions/17781069/android-null-exception-on-calling-function the Event. float pointX event.getX float pointY event.getY Checks for the event that occurs switch event.getAction case MotionEvent.ACTION_DOWN..
Rotating phone quickly 180 degrees, camera preview turns upside down http://stackoverflow.com/questions/19532599/rotating-phone-quickly-180-degrees-camera-preview-turns-upside-down newConfig super.onConfigurationChanged newConfig Checks the orientation of the screen if newConfig.orientation Configuration.ORIENTATION_LANDSCAPE..
How to check internet connectivity in android? http://stackoverflow.com/questions/3211978/how-to-check-internet-connectivity-in-android with the logic you have in the if clause there. I use this Checks if we have a valid Internet Connection on the device. @param..
how to check wifi or 3g network is available on android device http://stackoverflow.com/questions/3262781/how-to-check-wifi-or-3g-network-is-available-on-android-device java android share improve this question I use this Checks if we have a valid Internet Connection on the device. @param..
Determining if an Android device is rooted programatically? [duplicate] http://stackoverflow.com/questions/3424195/determining-if-an-android-device-is-rooted-programatically share improve this question This is what you need Checks if the device is rooted. @return code true code if the device..
Use a persistent notification to allow the user to return to running Android app http://stackoverflow.com/questions/3568250/use-a-persistent-notification-to-allow-the-user-to-return-to-running-android-app the user to the last activity they had open this.finish Checks the currently running tasks. If this activity is the base activity..
Howto capture the 'virtual keyboard show/hide' event in Android? http://stackoverflow.com/questions/4312319/howto-capture-the-virtual-keyboard-show-hide-event-in-android newConfig super.onConfigurationChanged newConfig Checks whether a hardware keyboard is available if newConfig.hardKeyboardHidden..
Activity reloads when orientation changes in Android http://stackoverflow.com/questions/4364545/activity-reloads-when-orientation-changes-in-android newConfig super.onConfigurationChanged newConfig Checks the orientation of the screen if newConfig.orientation Configuration.ORIENTATION_LANDSCAPE.. Toast.makeText this portrait Toast.LENGTH_SHORT .show Checks whether a hardware keyboard is available if newConfig.hardKeyboardHidden..
Android multiple databases open http://stackoverflow.com/questions/4498664/android-multiple-databases-open INTERNAL mDatabaseManager INTERNAL .getWritableDatabase Checks the database state and throws an @link IllegalStateException..
Google map can be displayed on emulator but not in Android Device http://stackoverflow.com/questions/5231830/google-map-can-be-displayed-on-emulator-but-not-in-android-device Android Tools Export signed application package In Project Checks window brows your project and go to next window There select..
How to detect orientation change in layout in Android? http://stackoverflow.com/questions/5726657/how-to-detect-orientation-change-in-layout-in-android newConfig super.onConfigurationChanged newConfig Checks the orientation of the screen if newConfig.orientation Configuration.ORIENTATION_LANDSCAPE..
Check internet connection in ANDROID [duplicate] http://stackoverflow.com/questions/5911418/check-internet-connection-in-android android connection share improve this question Checks if the device has Internet connection. @return code true code..
Good way of getting the user's location in Android http://stackoverflow.com/questions/6181704/good-way-of-getting-the-users-location-in-android isFromSameProvider return location return bestLocation Checks whether two providers are the same private boolean isSameProvider..
Android Bitmap Limit - Preventing java.lang.OutOfMemory http://stackoverflow.com/questions/6892676/android-bitmap-limit-preventing-java-lang-outofmemory improve this question Use this snipplet worked for me Checks if a bitmap with the specified size fits in memory @param bmpwidth..
How do I use a compound drawable instead of a LinearLayout that contains an ImageView and a TextView http://stackoverflow.com/questions/8318765/how-do-i-use-a-compound-drawable-instead-of-a-linearlayout-that-contains-an-imag can be replaced by one and a compound drawable Issue Checks whether the current node can be replaced by a TextView using..
http://stackoverflow.com/questions/9838518/carousel-library-for-android float reflectionGap this.reflectionGap reflectionGap Checks if is with reflection. @return true if is with reflection public..
Do fragments really need an empty constructor? http://stackoverflow.com/questions/10450348/do-fragments-really-need-an-empty-constructor method. http docs.oracle.com javase 6 docs api java lang Class.html#newInstance Explains why upon instantiation it checks that the accessor is public and that that class loader allows access to it. It's a pretty nasty method all in all but it..
Jelly Bean DatePickerDialog — is there a way to cancel? http://stackoverflow.com/questions/11444238/jelly-bean-datepickerdialog-is-there-a-way-to-cancel picker.show Now it will work because of the possible correction that I posted above. And since DatePickerDialog.java checks for a null whenever it reads mCallback since the days of API 3 1.5 it seems can't check Honeycomb of course it won't trigger..
How to delete files created by the application on uninstall? http://stackoverflow.com/questions/1222269/how-to-delete-files-created-by-the-application-on-uninstall
How to set mobile system time and date in android? http://stackoverflow.com/questions/1332269/how-to-set-mobile-system-time-and-date-in-android may use the SystemClock approach. For this way android permissions do not matter there's no entity involved which checks proper permissions. This is the way the internal preinstalled Settings App works. It just runs under the system user account...
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 a confirmation e mail to the address provided and it it bounces then it's not 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..
Android ACTION_IMAGE_CAPTURE Intent http://stackoverflow.com/questions/1910608/android-action-image-capture-intent android.os.Build.PRODUCT android.os.Build.DEVICE then when i launch image capture i create an intent that checks for the bug. Intent i new Intent android.provider.MediaStore.ACTION_IMAGE_CAPTURE if hasImageCaptureBug i.putExtra android.provider.MediaStore.EXTRA_OUTPUT..
How to get cell service signal strength in Android? http://stackoverflow.com/questions/1967136/how-to-get-cell-service-signal-strength-in-android to get cell service signal strength in Android I am trying to write a very simple Android application that checks the signal strength of the current cell. So far I have only found something called getNeighboringCellInfo but I'm not really..
Remove all debug logging calls before publishing: are there tools to do this? http://stackoverflow.com/questions/2446248/remove-all-debug-logging-calls-before-publishing-are-there-tools-to-do-this like the above. android logging share improve this question I find a far easier solution is to forget all the if checks all over the place and just use ProGuard to strip out any Log.d or Log.v method calls when we call our Ant release target...
How to always run a service in the background http://stackoverflow.com/questions/2566350/how-to-always-run-a-service-in-the-background to the build in SMS app. What I need a service that is always running in the background every 5 min. the service checks the current location of the device and calls a web service if certain criteria are meet the service should generate a notification.. is not possible in any real sense of the term as you have discovered. It is also bad design . every 5 min. the service checks the current location of the device and calls a web service Use AlarmManager . using the AlarmManager the make the 5 min...
How can I refresh MediaStore on Android? http://stackoverflow.com/questions/3300137/how-can-i-refresh-mediastore-on-android question Ok I've done it. Rather than rescan the card the app iterates through all the playlists in mediastore and checks the length of the _data field. I discovered that for all the lists with no associated M3U file this field was always empty...
Android - Camera preview is sideways http://stackoverflow.com/questions/3841122/android-camera-preview-is-sideways start preview e This was on an HTC Desire and I had to initially put in logging statements in each of the rotation checks to say what the rotation was and then debugged on the device and watched the logCat output while I rotated the device. For..
What optimizations can I expect from Dalvik and the Android toolchain? http://stackoverflow.com/questions/4912695/what-optimizations-can-i-expect-from-dalvik-and-the-android-toolchain loop body . For such loops array accesses based on extended induction variables are optimized so that null and range checks are only performed in the loop prologue. One entry inline cache per virtual callsite w dynamic patching at runtime. Peephole..
getViewTypeCount and getItemViewType methods of ArrayAdapter http://stackoverflow.com/questions/5300962/getviewtypecount-and-getitemviewtype-methods-of-arrayadapter are visible to the user. The framework calls getItemViewType for row n the row it is about to display. The framework checks its recycled views pool for views of row n 's type. It doesn't find any because no views have been recycled yet. getView..
Android detect if device has internet connection http://stackoverflow.com/questions/6493517/android-detect-if-device-has-internet-connection to something android connection internet share improve this question You are right. The code you've provided only checks if there is a network connection. The best way to check if there is an active Internet connection is to try and connect..
Android Paint: .measureText() vs .getTextBounds() http://stackoverflow.com/questions/7549182/android-paint-measuretext-vs-gettextbounds both. native_measureText SkPaintGlue measureText_CII nativeGetStringBounds SkPaintGlue getStringBounds Now your study checks where these methods differ. After some param checks both call function SkPaint measureText in Skia Lib part of Android but.. nativeGetStringBounds SkPaintGlue getStringBounds Now your study checks where these methods differ. After some param checks both call function SkPaint measureText in Skia Lib part of Android but they both call different overloaded form. Digging..
Getting an issue while checking the dynamically generated checkbox through list view http://stackoverflow.com/questions/7738527/getting-an-issue-while-checking-the-dynamically-generated-checkbox-through-list my problem is that when i check the first checkbox i have 15 candidate name with checkboxs automatically 10th checkbox checks itself and this also happens with 2nd 11th 3rd 12th and so on vice verse is also true .here i am providing my adapter class..
Creating an Android trial application that expires after a fixed time period http://stackoverflow.com/questions/995719/creating-an-android-trial-application-that-expires-after-a-fixed-time-period should not be circumventable but does require setting up a webserver and such. It is always good practice to do these checks in the onCreate. If the expiration has ended popup an AlertDialog with a market link to the full version of the app. Only..
Using cookies with Android volley library http://stackoverflow.com/questions/16680701/using-cookies-with-android-volley-library this _requestQueue Volley.newRequestQueue this public RequestQueue getRequestQueue return _requestQueue Checks the response headers for session cookie and saves it if it finds it. @param headers Response Headers. public final void..
Handling registration ID changes in Google Cloud Messaging on Android http://stackoverflow.com/questions/16838654/handling-registration-id-changes-in-google-cloud-messaging-on-android isRegistrationExpired Log.v TAG App version changed or registration expired. return return registrationId Checks if the registration has expired. p To avoid the scenario where the device sends the registration to the server but the server..
In GoogleCloudMessaging API, how to handle the renewal or expiration of registration ID? http://stackoverflow.com/questions/17335572/in-googlecloudmessaging-api-how-to-handle-the-renewal-or-expiration-of-registra isRegistrationExpired Log.v TAG App version changed or registration expired. return return registrationId Checks if the registration has expired. p To avoid the scenario where the device sends the registration to the server but the server..
Android Null Exception on Calling function http://stackoverflow.com/questions/17781069/android-null-exception-on-calling-function MotionEvent event Gives you x and y coordinates on the Event. float pointX event.getX float pointY event.getY Checks for the event that occurs switch event.getAction case MotionEvent.ACTION_DOWN path.moveTo pointX pointY return true case..
Rotating phone quickly 180 degrees, camera preview turns upside down http://stackoverflow.com/questions/19532599/rotating-phone-quickly-180-degrees-camera-preview-turns-upside-down port @Override public void onConfigurationChanged Configuration newConfig super.onConfigurationChanged newConfig Checks the orientation of the screen if newConfig.orientation Configuration.ORIENTATION_LANDSCAPE Toast.makeText this landscape..
How to check internet connectivity in android? http://stackoverflow.com/questions/3211978/how-to-check-internet-connectivity-in-android android share improve this question Probably some issue with the logic you have in the if clause there. I use this Checks if we have a valid Internet Connection on the device. @param ctx @return True if device has internet Code from http www.androidsnippets.org..
how to check wifi or 3g network is available on android device http://stackoverflow.com/questions/3262781/how-to-check-wifi-or-3g-network-is-available-on-android-device connection is wifi or 3g. Please help me. Thanks in advance. java android share improve this question I use this Checks if we have a valid Internet Connection on the device. @param ctx @return True if device has internet Code from http www.androidsnippets.org..
Determining if an Android device is rooted programatically? [duplicate] http://stackoverflow.com/questions/3424195/determining-if-an-android-device-is-rooted-programatically user has access to the database. How do I detect that android share improve this question This is what you need Checks if the device is rooted. @return code true code if the device is rooted code false code otherwise. public static boolean..
Use a persistent notification to allow the user to return to running Android app http://stackoverflow.com/questions/3568250/use-a-persistent-notification-to-allow-the-user-to-return-to-running-android-app startActivity main else Return the user to the last activity they had open this.finish Checks the currently running tasks. If this activity is the base activity we know it's the only activity in the stack @return..
Howto capture the 'virtual keyboard show/hide' event in Android? http://stackoverflow.com/questions/4312319/howto-capture-the-virtual-keyboard-show-hide-event-in-android link above @Override public void onConfigurationChanged Configuration newConfig super.onConfigurationChanged newConfig Checks whether a hardware keyboard is available if newConfig.hardKeyboardHidden Configuration.HARDKEYBOARDHIDDEN_NO Toast.makeText..
Activity reloads when orientation changes in Android http://stackoverflow.com/questions/4364545/activity-reloads-when-orientation-changes-in-android classes. @Override public void onConfigurationChanged Configuration newConfig super.onConfigurationChanged newConfig Checks the orientation of the screen if newConfig.orientation Configuration.ORIENTATION_LANDSCAPE Toast.makeText this landscape.. if newConfig.orientation Configuration.ORIENTATION_PORTRAIT Toast.makeText this portrait Toast.LENGTH_SHORT .show Checks whether a hardware keyboard is available if newConfig.hardKeyboardHidden Configuration.HARDKEYBOARDHIDDEN_NO Toast.makeText..
Android multiple databases open http://stackoverflow.com/questions/4498664/android-multiple-databases-open InternalDatabaseManager MyApplication.getInstance mDatabases INTERNAL mDatabaseManager INTERNAL .getWritableDatabase Checks the database state and throws an @link IllegalStateException if database isn't open. Should always be used before starting..
Google map can be displayed on emulator but not in Android Device http://stackoverflow.com/questions/5231830/google-map-can-be-displayed-on-emulator-but-not-in-android-device Right click on your project in the Package Explorer window Android Tools Export signed application package In Project Checks window brows your project and go to next window There select Create new keystore and follow the wizard Don't give the default..
How to detect orientation change in layout in Android? http://stackoverflow.com/questions/5726657/how-to-detect-orientation-change-in-layout-in-android the following code public void onConfigurationChanged Configuration newConfig super.onConfigurationChanged newConfig Checks the orientation of the screen if newConfig.orientation Configuration.ORIENTATION_LANDSCAPE Toast.makeText this landscape..
Check internet connection in ANDROID [duplicate] http://stackoverflow.com/questions/5911418/check-internet-connection-in-android internet connection available and not my application to crush... android connection share improve this question Checks if the device has Internet connection. @return code true code if the phone is connected to the Internet. public static boolean..
Good way of getting the user's location in Android http://stackoverflow.com/questions/6181704/good-way-of-getting-the-users-location-in-android return location else if isNewer isSignificantlyLessAccurate isFromSameProvider return location return bestLocation Checks whether two providers are the same private boolean isSameProvider String provider1 String provider2 if provider1 null return..
Android Bitmap Limit - Preventing java.lang.OutOfMemory http://stackoverflow.com/questions/6892676/android-bitmap-limit-preventing-java-lang-outofmemory by how broken this behavior is android out of memory share improve this question Use this snipplet worked for me Checks if a bitmap with the specified size fits in memory @param bmpwidth Bitmap width @param bmpheight Bitmap height @param bmpdensity..
How do I use a compound drawable instead of a LinearLayout that contains an ImageView and a TextView http://stackoverflow.com/questions/8318765/how-do-i-use-a-compound-drawable-instead-of-a-linearlayout-that-contains-an-imag but this one I cannot understand. This tag and its children can be replaced by one and a compound drawable Issue Checks whether the current node can be replaced by a TextView using compound drawables. A LinearLayout which contains an ImageView..
http://stackoverflow.com/questions/9838518/carousel-library-for-android the new reflection gap public void setReflectionGap final float reflectionGap this.reflectionGap reflectionGap Checks if is with reflection. @return true if is with reflection public boolean isWithReflection return withReflection Sets the..
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