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2014/10/16 ¤W¤È 08:26:21
android Programming Glossary: thereQuitting an application - is that frowned upon? http://stackoverflow.com/questions/2033914/quitting-an-application-is-that-frowned-upon abandon Android but it doesn't look very good right now Is there a way for me to really quit the application android share.. one third party app at a time at present . As I said above there is a lot of things going on in my app data being PUSHed to the.. to the device lists with tasks that always should be there etc . I don't know what lists with tasks that always should..
How do I pass data between activities in Android? http://stackoverflow.com/questions/2091465/how-do-i-pass-data-between-activities-in-android a scenario where after logging in through a login page there will be sign out button on each activity. On clicking signout.. session id available to all activities Alternatively are there any other solutions to this problem android share improve..
Is there a unique Android device ID? http://stackoverflow.com/questions/2785485/is-there-a-unique-android-device-id there a unique Android device ID Do Android devices have a unique..
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 on a background thread. You shouldn't do any UI tasks there. On the other hand the onProgressUpdate and onPreExecute run.. onProgressUpdate and onPreExecute run on the UI thread so there you can change the progress bar @Override protected void onPreExecute.. Service which spawns a thread to do background work from there you should know that a Service runs actually in the same thread..
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 that's actually going to give you the best results. Is there a simpler way to accomplish this android geolocation share.. LocationManager.NETWORK_PROVIDER if there are both values use the latest one if gps_loc null net_loc null..
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 it tries to go back and re launch the 2nd activity. Is there a way I can build the list adapter easily row by row where I..
How do I do a lazy load of images in ListView http://stackoverflow.com/questions/541966/how-do-i-do-a-lazy-load-of-images-in-listview images. I am getting the images from the Internet. Is there a way to lazy load the images so while the text displays the..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables answer back in '09 when Android was relatively new and there were many not well established areas in Android development... this is not incorrect but only further points out that there is no concrete benefit to using a Singleton instead of an Application.. initializing them on demand. This ignores the fact that there is no reason you cannot initialize on demand using an Application..
Application Skeleton to support multiple screen http://stackoverflow.com/questions/12242111/application-skeleton-to-support-multiple-screen size and the resolutions follow the same aspect ratio. Therefore an image can be created to fit the non Android devices... 480X800 only and then for rest ones i.e. Ldpi Mdpi Xhdpi . There are images which are common for all layout and must uniform..
Sending and Receiving SMS and MMS in Android (pre Kit Kat Android 4.4) http://stackoverflow.com/questions/14452808/sending-and-receiving-sms-and-mms-in-android-pre-kit-kat-android-4-4 I am trying to send an MMS without leaving my application. There doesn't seem to be a standard way of sending and receiving MMS..
java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android http://stackoverflow.com/questions/1949066/java-lang-outofmemoryerror-bitmap-size-exceeds-vm-budget-android Textviews ImageViews etc and user reads the information. There is no animation no special effects or anything that can fill..
Quitting an application - is that frowned upon? http://stackoverflow.com/questions/2033914/quitting-an-application-is-that-frowned-upon they get a phonecall and Android decides to kill the app. There are many iPhone and Android applications that deal with this...
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 per device. android share improve this question There are several ways to do this shown below. As a friendly warning..
How to discover memory usage of my application in Android http://stackoverflow.com/questions/2298208/how-to-discover-memory-usage-of-my-application-in-android gives a summary of the overall memory usage of the system. There is a lot of data here only the first few numbers worth discussing..
What are the best practices for SQLite on Android? http://stackoverflow.com/questions/2493331/what-are-the-best-practices-for-sqlite-on-android careful with how you create your connections and use them. There are situations where your update calls will fail even if your..
How can I connect to Android with ADB over TCP? http://stackoverflow.com/questions/2604727/how-can-i-connect-to-android-with-adb-over-tcp to listening over USB adb usb Apps to Automate the Process There are also several apps on Google Play that automate this process..
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 download android asynctask share improve this question There are many ways to download files. Following I will post most.. First and second methods are just the tip of the iceberg. There are lots of things you have to keep in mind if you want your..
Running multiple AsyncTasks at the same time — not possible? http://stackoverflow.com/questions/4068984/running-multiple-asynctasks-at-the-same-time-not-possible So in this case at most 6 tasks will run simultaneously. There is a limit of how many tasks can be run simultaneously. Since..
Any good graphing packages for Android? [closed] http://stackoverflow.com/questions/424752/any-good-graphing-packages-for-android graphs and other simple data visualizations in Android There is a Google specific 2D library. Are there any packages built..
How to parse XML using the SAX parser http://stackoverflow.com/questions/4827344/how-to-parse-xml-using-the-sax-parser with repeating tags in different levels becomes tricky. There you'd have to either use Enums for example to set your current..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables continuing. Point by point Diane states the following There is no reason to subclass from Application. It is no different.. than making a singleton... This first claim is incorrect. There are two main reasons for this. 1 The Application class provides..
ViewPager PagerAdapter not updating the View http://stackoverflow.com/questions/7263291/viewpager-pageradapter-not-updating-the-view android android viewpager share improve this question There are several ways to achieve this. The first option is easier..
When to call activity context OR application context? http://stackoverflow.com/questions/7298731/when-to-call-activity-context-or-application-context to call activity context OR application context There has been a lot of posting about what these two contexts are....
How to call Android contacts list? http://stackoverflow.com/questions/866769/how-to-call-android-contacts-list contact then return to your app with the contact's name'. There are three steps to this process. 1 Permissions Add a permission..
Using Application context everywhere? http://stackoverflow.com/questions/987072/using-application-context-everywhere android android context share improve this question There are a couple of potential problems with this approach though..
Quitting an application - is that frowned upon? http://stackoverflow.com/questions/2033914/quitting-an-application-is-that-frowned-upon been somewhat of a turnoff for me... I hope I don't have to abandon Android but it doesn't look very good right now Is there a way for me to really quit the application android share improve this question This will eventually get to your question.. if the app really was shut down since iPhone only allows one third party app at a time at present . As I said above there is a lot of things going on in my app data being PUSHed to the device lists with tasks that always should be there etc ... there is a lot of things going on in my app data being PUSHed to the device lists with tasks that always should be there etc . I don't know what lists with tasks that always should be there means but the data being PUSHed to the device is a..
How do I pass data between activities in Android? http://stackoverflow.com/questions/2091465/how-do-i-pass-data-between-activities-in-android do I pass data between activities in Android I have a scenario where after logging in through a login page there will be sign out button on each activity. On clicking signout I will be passing the session id of the signed in user to.. signed in user to signout. Can anyone guide me on how to keep session id available to all activities Alternatively are there any other solutions to this problem android share improve this question The easiest way to do this would be to pass..
Is there a unique Android device ID? http://stackoverflow.com/questions/2785485/is-there-a-unique-android-device-id there a unique Android device ID Do Android devices have a unique id and if so what is a simple way to access it via java android..
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 return null The method above doInBackground runs always on a background thread. You shouldn't do any UI tasks there. On the other hand the onProgressUpdate and onPreExecute run on the UI thread so there you can change the progress bar @Override.. You shouldn't do any UI tasks there. On the other hand the onProgressUpdate and onPreExecute run on the UI thread so there you can change the progress bar @Override protected void onPreExecute super.onPreExecute mProgressDialog.show @Override.. 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 app when you extends Service you must manually spawn..
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 give you the best theoretical provider rather than the provider that's actually going to give you the best results. Is there a simpler way to accomplish this android geolocation share improve this question Here's what I do First of all I check.. LocationManager.GPS_PROVIDER if network_enabled net_loc lm.getLastKnownLocation LocationManager.NETWORK_PROVIDER if there are both values use the latest one if gps_loc null net_loc null if gps_loc.getTime net_loc.getTime locationResult.gotLocation..
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 camera. The issue is that I get an out of memory error when it tries to go back and re launch the 2nd activity. Is there a way I can build the list adapter easily row by row where I can resize on the fly bit wise This would be preferable as..
How do I do a lazy load of images in ListView http://stackoverflow.com/questions/541966/how-do-i-do-a-lazy-load-of-images-in-listview to display some images and captions associated with those images. I am getting the images from the Internet. Is there a way to lazy load the images so while the text displays the UI is not locked up and images are displayed as they are downloaded..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables variables state share improve this question I wrote this answer back in '09 when Android was relatively new and there were many not well established areas in Android development. I have added a long addendum at the bottom of this post addressing.. 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 of an Application subclass in this aspect. She continues And this leads.. more naturally to how you should be managing these things initializing them on demand. This ignores the fact that there is no reason you cannot initialize on demand using an Application subclass as well. Again there is no difference. Diane..
Application Skeleton to support multiple screen http://stackoverflow.com/questions/12242111/application-skeleton-to-support-multiple-screen have different resolutions and DPI they share the same screen size and the resolutions follow the same aspect ratio. Therefore an image can be created to fit the non Android devices. My question is that is there a proper flow or architecture that.. which means that first icon and design will be created for 480X800 only and then for rest ones i.e. Ldpi Mdpi Xhdpi . There are images which are common for all layout and must uniform in color and shape no complex shape no curve so for this kind..
Sending and Receiving SMS and MMS in Android (pre Kit Kat Android 4.4) http://stackoverflow.com/questions/14452808/sending-and-receiving-sms-and-mms-in-android-pre-kit-kat-android-4-4 simply pass an Intent to the native Messaging application. I am trying to send an MMS without leaving my application. There doesn't seem to be a standard way of sending and receiving MMS . Has anyone gotten this to work Also I am aware that the..
java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android http://stackoverflow.com/questions/1949066/java-lang-outofmemoryerror-bitmap-size-exceeds-vm-budget-android once fills the information on the screen Layouts Listviews Textviews ImageViews etc and user reads the information. There is no animation no special effects or anything that can fill the memory. Sometimes the drawables can change. Some are android..
Quitting an application - is that frowned upon? http://stackoverflow.com/questions/2033914/quitting-an-application-is-that-frowned-upon Our users log in and cant be doing that everytime they get a phonecall and Android decides to kill the app. There are many iPhone and Android applications that deal with this. Usually it is because they hold onto logon credentials rather..
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 mail addresses but below 2.0 you can only have one e mail address per device. android share improve this question There are several ways to do this shown below. As a friendly warning be careful and up front to the user when dealing with account..
How to discover memory usage of my application in Android http://stackoverflow.com/questions/2298208/how-to-discover-memory-usage-of-my-application-in-android there is the command adb shell cat proc meminfo that gives a summary of the overall memory usage of the system. There is a lot of data here only the first few numbers worth discussing and the remaining ones understood by few people and my..
What are the best practices for SQLite on Android? http://stackoverflow.com/questions/2493331/what-are-the-best-practices-for-sqlite-on-android threads but answer #1 is not correct. You have to be careful with how you create your connections and use them. There are situations where your update calls will fail even if your database doesn't get corrupted. The basic answer. The SqliteOpenHelper..
How can I connect to Android with ADB over TCP? http://stackoverflow.com/questions/2604727/how-can-i-connect-to-android-with-adb-over-tcp assigned to your device. To tell the ADB daemon return to listening over USB adb usb Apps to Automate the Process There are also several apps on Google Play that automate this process a quick search suggests adbWireless WiFi ADB and ADB WiFi..
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 how to download the file in the first place. java android download android asynctask share improve 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.. will be showing in the notification bar. Final thoughts First and second methods are just the tip of the iceberg. There are lots of things you have to keep in mind if you want your app to be robust. Here is a brief list You must check whether..
Running multiple AsyncTasks at the same time — not possible? http://stackoverflow.com/questions/4068984/running-multiple-asynctasks-at-the-same-time-not-possible thread will be created so it'll start execution immediatelly. So in this case at most 6 tasks will run simultaneously. There is a limit of how many tasks can be run simultaneously. Since AsyncTask uses a thread pool executor with limited max number..
Any good graphing packages for Android? [closed] http://stackoverflow.com/questions/424752/any-good-graphing-packages-for-android have been developed to display simple bar histograms line graphs and other simple data visualizations in Android There is a Google specific 2D library. Are there any packages built atop it that allows for the easy creation of graphical data..
How to parse XML using the SAX parser http://stackoverflow.com/questions/4827344/how-to-parse-xml-using-the-sax-parser to manage that but having to parse a more complex structure with repeating tags in different levels becomes tricky. There you'd have to either use Enums for example to set your current state and a lot of switch case statemenets to check where..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables in this answer. I highly encourage skimming the link before continuing. Point by point Diane states the following There is no reason to subclass from Application. It is no different than making a singleton... This first claim is incorrect... no reason to subclass from Application. It is no different than making a singleton... This first claim is incorrect. There are two main reasons for this. 1 The Application class provides a better lifetime guarantee for an application developer..
ViewPager PagerAdapter not updating the View http://stackoverflow.com/questions/7263291/viewpager-pageradapter-not-updating-the-view View arg0 @Override public void finishUpdate View arg0 android android viewpager share improve this question There are several ways to achieve this. The first option is easier but bit more inefficient. Override getItemPosition in your..
When to call activity context OR application context? http://stackoverflow.com/questions/7298731/when-to-call-activity-context-or-application-context to call activity context OR application context There has been a lot of posting about what these two contexts are.. But I'm still not getting it quite right As I understand it..
How to call Android contacts list? http://stackoverflow.com/questions/866769/how-to-call-android-contacts-list should help you 'call the contacts list function pick a contact then return to your app with the contact's name'. There are three steps to this process. 1 Permissions Add a permission to read contacts data to your application manifest. uses..
Using Application context everywhere? http://stackoverflow.com/questions/987072/using-application-context-everywhere where context is required and not leaking of course android android context share improve this question There are a couple of potential problems with this approach though in a lot of circumstances such as your example it will work..
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