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2014/10/16 ¤W¤Č 08:09:25
android Programming Glossary: acrossWhat Android tools and methods work best to find memory/resource leaks? http://stackoverflow.com/questions/1147172/what-android-tools-and-methods-work-best-to-find-memory-resource-leaks of favorable reviews. What tools or methods have you come across or developed and care to share maybe in an OS project android.. question Here are a couple of good blog posts I've come across. http android developers.blogspot.com 2009 02 track memory allocations.html..
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 ContentObserver Sending MMS As for sending MMS I have come across this example Send MMS The problem is that I tried running this..
How to close Android application? http://stackoverflow.com/questions/2092951/how-to-close-android-application Activity that includes custom behavior shared across the application. For example bringing up a menu with the settings.. an example of a helper class that handles the HOME key across the app package android.example @author Danny Remington MacroSolve..
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 in Android and Linux systems in general is actually shared across multiple processes. So how much memory a processes uses is really.. using that page. This way you can in theory add up the pss across all processes to see the total RAM they are using and compare.. of the heaps. If you just want to look at memory usage across all processes you can use the command adb shell procrank . Output..
How do I get the SharedPreferences from a PreferenceActivity in Android? http://stackoverflow.com/questions/2614719/how-do-i-get-the-sharedpreferences-from-a-preferenceactivity-in-android name value pairs. They can be stored as Shared Preferences across various activities in an application note currently it cannot.. in an application note currently it cannot be shared across processes . Or it can be something that needs to be stored specific..
Focusable EditText inside ListView http://stackoverflow.com/questions/2679948/focusable-edittext-inside-listview to see why the two behaviors are so different and came across this from ListView.java public void setItemsCanFocus boolean..
How to programatically create and read WEP/EAP WiFi configurations in Android? http://stackoverflow.com/questions/4374862/how-to-programatically-create-and-read-wep-eap-wifi-configurations-in-android struggling on this very question on various forums and all across the community. I know this is not that straight forward especially..
Android and XMPP: Currently available solutions http://stackoverflow.com/questions/4769020/android-and-xmpp-currently-available-solutions a real application . There's also another solution I came across Beem's aSMACK library . Beem is a fairly new XMPP client for..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables general problem you are encountering is how to save state across several Activities and all parts of your application. A static.. Android guarantees that it will exist as a single instance across your application. The way to do this is to create your own subclass.. existing Android framework. Note that this will not work across processes should your app be one of the rare ones that has multiple..
Android - basic gesture detection http://stackoverflow.com/questions/937313/android-basic-gesture-detection I really just need a concrete example of this working across views. What when and how should I attach this listener I need..
What Android tools and methods work best to find memory/resource leaks? http://stackoverflow.com/questions/1147172/what-android-tools-and-methods-work-best-to-find-memory-resource-leaks up info on 'hprof' and 'traceview' and neither gets a lot of favorable reviews. What tools or methods have you come across or developed and care to share maybe in an OS project android memory leaks share improve this question Here are a couple.. in an OS project android memory leaks share improve this question Here are a couple of good blog posts I've come across. http android developers.blogspot.com 2009 02 track memory allocations.html http android developers.blogspot.com 2009 01..
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 Are there any other implementations of a registered ContentObserver Sending MMS As for sending MMS I have come across this example Send MMS The problem is that I tried running this code on my Nexus 4 which is on Android v4.2.2 and I am receiving..
How to close Android application? http://stackoverflow.com/questions/2092951/how-to-close-android-application import android.view.Menu import android.view.MenuInflater Activity that includes custom behavior shared across the application. For example bringing up a menu with the settings icon when the menu button is pressed by the user and then.. Disable the SEARCH key. return false Here's an example of a helper class that handles the HOME key across the app package android.example @author Danny Remington MacroSolve Helper class to help handling of UI. public class UIHelper..
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 SharedDirty ... well now the fun begins. A lot of memory in Android and Linux systems in general is actually shared across multiple processes. So how much memory a processes uses is really not clear. Add on top of that paging out to disk let alone.. is scaled by a ratio of the number of other processes also using that page. This way you can in theory add up the pss across all processes to see the total RAM they are using and compare pss between processes to get a rough idea of their relative.. same as discussed before specific to pages associated with each of the heaps. If you just want to look at memory usage across all processes you can use the command adb shell procrank . Output of this on the same system looks like PID Vss Rss Pss..
How do I get the SharedPreferences from a PreferenceActivity in Android? http://stackoverflow.com/questions/2614719/how-do-i-get-the-sharedpreferences-from-a-preferenceactivity-in-android provides a simple set of APIs. Preferences are typically name value pairs. They can be stored as Shared Preferences across various activities in an application note currently it cannot be shared across processes . Or it can be something that needs.. can be stored as Shared Preferences across various activities in an application note currently it cannot be shared across processes . Or it can be something that needs to be stored specific to an activity. Shared Preferences The shared preferences..
Focusable EditText inside ListView http://stackoverflow.com/questions/2679948/focusable-edittext-inside-listview solid user experience. I looked into the code for ListView to see why the two behaviors are so different and came across this from ListView.java public void setItemsCanFocus boolean itemsCanFocus mItemsCanFocus itemsCanFocus if itemsCanFocus..
How to programatically create and read WEP/EAP WiFi configurations in Android? http://stackoverflow.com/questions/4374862/how-to-programatically-create-and-read-wep-eap-wifi-configurations-in-android configurations in Android I have seen a number of people struggling on this very question on various forums and all across the community. I know this is not that straight forward especially EAP to figure out because When I wanted to acheive the..
Android and XMPP: Currently available solutions http://stackoverflow.com/questions/4769020/android-and-xmpp-currently-available-solutions work just fine nowadays although I have not tried it yet in a real application . There's also another solution I came across Beem's aSMACK library . Beem is a fairly new XMPP client for android and from what I understand they are using their own..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables Read it at your own risk. ORIGINAL ANSWER The more general problem you are encountering is how to save state across several Activities and all parts of your application. A static variable for instance a singleton is a common Java way of.. the broadest sense. Your application also has a context and Android guarantees that it will exist as a single instance across your application. The way to do this is to create your own subclass of android.app.Application and then specify that class.. variable or singleton but integrates quite well into the existing Android framework. Note that this will not work across processes should your app be one of the rare ones that has multiple processes . NOTE 1 Also as anticafe commented in order..
Android - basic gesture detection http://stackoverflow.com/questions/937313/android-basic-gesture-detection this and the methods weren't called when I touched the screen. I really just need a concrete example of this working across views. What when and how should I attach this listener I need to be able to detect single clicks also. Gesture detection..
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