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2014/10/16 ¤W¤È 08:17:59
android Programming Glossary: livedWhen exactly is it leak safe to use (anonymous) inner classes? http://stackoverflow.com/questions/10864853/when-exactly-is-it-leak-safe-to-use-anonymous-inner-classes the containing object to be the only one to keep long lived references to the inner objects. Use established patterns such.. All references to Activity Contexts should be short lived the duration of the function If you need a long lived Context.. lived the duration of the function If you need a long lived Context use the Application Context getBaseContext or getApplicationContext..
Debugging Issues (Android Eclipse) http://stackoverflow.com/questions/11439821/debugging-issues-android-eclipse will likely solve the problem. Here's a screenshot I have lived this too. I'm just posting this so you could mark it as an answer..
Google Cloud Messaging - messages sometimes not received until network state changed http://stackoverflow.com/questions/13835676/google-cloud-messaging-messages-sometimes-not-received-until-network-state-cha and most push messaging services works by keeping a long lived socket open to Google's push notification server. The socket..
how to use ddms for memory leaks in c++ code http://stackoverflow.com/questions/15386339/how-to-use-ddms-for-memory-leaks-in-c-code stack trace and see if it makes sense to have many long lived allocations from there. Not very rigorous but it often does..
JDBC vs Web Service for Android http://stackoverflow.com/questions/15853367/jdbc-vs-web-service-for-android in this environment and particularly struggles with long lived connections. The key benefit of a web service is that it Has.. The key benefit of a web service is that it Has short lived connections with minimal state so it's easy to get back to where..
Android: Storing username and password? http://stackoverflow.com/questions/1925486/android-storing-username-and-password and password supplied by the user and then use a short lived service specific authorization token. Using the AccountManger..
Singletons vs. Application Context in Android? http://stackoverflow.com/questions/3826905/singletons-vs-application-context-in-android your singleton class to instead instantiate small short lived objects that perform the task at hand. share improve this answer..
How to include version string in the filename when building Android apk with ant? http://stackoverflow.com/questions/5270368/how-to-include-version-string-in-the-filename-when-building-android-apk-with-ant where stored in a separate properties file that only lived on the build server. While a minor security risk in some cases..
http://stackoverflow.com/questions/5458156/diffinitive-rules-for-using-androids-getbasecontext-getapplicationcontext-or-u up often and seem to make a lot of sense are For a long lived reference to a context activity getApplicationContext should..
http://stackoverflow.com/questions/5796611/dialog-throwing-unable-to-add-window-token-null-is-not-for-an-application-wi on the activities life cycle. If you plan on keeping long lived objects that need a context remember the application object...
TCP-based RPC server (Erlang or something similar?) for iOS/Android app communication http://stackoverflow.com/questions/6614343/tcp-based-rpc-server-erlang-or-something-similar-for-ios-android-app-communic This ofcourse would require a server to handle the long lived TCP connection and be able to speak to a web service once it..
When exactly is it leak safe to use (anonymous) inner classes? http://stackoverflow.com/questions/10864853/when-exactly-is-it-leak-safe-to-use-anonymous-inner-classes Gain temporary references from the containing object. Allow the containing object to be the only one to keep long lived references to the inner objects. Use established patterns such as the Factory. If the inner class does not require access.. at all costs making a Static reference to a View or Activity. All references to Activity Contexts should be short lived the duration of the function If you need a long lived Context use the Application Context getBaseContext or getApplicationContext.. or Activity. All references to Activity Contexts should be short lived the duration of the function If you need a long lived Context use the Application Context getBaseContext or getApplicationContext . These do not keep references implicitly. Alternatively..
Debugging Issues (Android Eclipse) http://stackoverflow.com/questions/11439821/debugging-issues-android-eclipse this question Updating your Eclipse and Android SDK will likely solve the problem. Here's a screenshot I have lived this too. I'm just posting this so you could mark it as an answer for people who may have encountered this situation too...
Google Cloud Messaging - messages sometimes not received until network state changed http://stackoverflow.com/questions/13835676/google-cloud-messaging-messages-sometimes-not-received-until-network-state-cha actual code here's my understanding of why this happens. GCM and most push messaging services works by keeping a long lived socket open to Google's push notification server. The socket is kept open by sending heartbeat messages between the phone..
how to use ddms for memory leaks in c++ code http://stackoverflow.com/questions/15386339/how-to-use-ddms-for-memory-leaks-in-c-code there's a lot that are coming from the same place. Look at the stack trace and see if it makes sense to have many long lived allocations from there. Not very rigorous but it often does the trick. For a more thorough examination of the heap you can..
JDBC vs Web Service for Android http://stackoverflow.com/questions/15853367/jdbc-vs-web-service-for-android of magnitude in short spans of time. TCP really isn't great in this environment and particularly struggles with long lived connections. The key benefit of a web service is that it Has short lived connections with minimal state so it's easy to.. and particularly struggles with long lived connections. The key benefit of a web service is that it Has short lived connections with minimal state so it's easy to get back to where you were when the device switches WiFi networks to from..
Android: Storing username and password? http://stackoverflow.com/questions/1925486/android-storing-username-and-password Instead perform initial authentication using the username and password supplied by the user and then use a short lived service specific authorization token. Using the AccountManger is the best option for storing credentials. The SampleSyncAdapter..
Singletons vs. Application Context in Android? http://stackoverflow.com/questions/3826905/singletons-vs-application-context-in-android
How to include version string in the filename when building Android apk with ant? http://stackoverflow.com/questions/5270368/how-to-include-version-string-in-the-filename-when-building-android-apk-with-ant and using those in the signing task. The actual passwords where stored in a separate properties file that only lived on the build server. While a minor security risk in some cases it is out weighed by the need for full end to end build automation...
http://stackoverflow.com/questions/5458156/diffinitive-rules-for-using-androids-getbasecontext-getapplicationcontext-or-u or an Activity's own this pointer. Three rules that come up often and seem to make a lot of sense are For a long lived reference to a context activity getApplicationContext should be used as this exists as long as your application exists For..
http://stackoverflow.com/questions/5796611/dialog-throwing-unable-to-add-window-token-null-is-not-for-an-application-wi as long as your application is alive and does not depend on the activities life cycle. If you plan on keeping long lived objects that need a context remember the application object. You can obtain it easily by calling Context.getApplicationContext..
TCP-based RPC server (Erlang or something similar?) for iOS/Android app communication http://stackoverflow.com/questions/6614343/tcp-based-rpc-server-erlang-or-something-similar-for-ios-android-app-communic commands to the server for all web service communication. This ofcourse would require a server to handle the long lived TCP connection and be able to speak to a web service once it makes sense of the data passed down the TCP pipe. I'm thinking..
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