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2014/10/16 ¤W¤Č 08:20:53
android Programming Glossary: optimizationHow ListView's recycling mechanism works http://stackoverflow.com/questions/11945563/how-listviews-recycling-mechanism-works same view not creating a new for you due to performance optimization. Important things 1 .Never set the layout_height and layout_width..
Can you use the merge tag with fragments? http://stackoverflow.com/questions/13348455/can-you-use-the-merge-tag-with-fragments this wrapper layout but this will make the merge tag optimization useless as you could add the wrapper layout in the xml layout..
What is the android UI thread stack size limit and how to overcome it? http://stackoverflow.com/questions/16843357/what-is-the-android-ui-thread-stack-size-limit-and-how-to-overcome-it on #3 any recommendations for where the core hierarchy optimization should be done Crazy idea I noticed that every view layer adds.. native x86 emulator to a real device . Keep in mind that optimizations to how the actual widgets layouts are implemented may also..
Designing android apps for tablets http://stackoverflow.com/questions/17938163/designing-android-apps-for-tablets 10 in the emulator. Also in the developer console under optimization tips it says Your Production APK needs to meet the following..
Need to handle uncaught exception and send log file http://stackoverflow.com/questions/19897628/need-to-handle-uncaught-exception-and-send-log-file they write to the logs and thus can be removed during optimization assumenosideeffects class android.util.Log public static int..
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 optimizations can I expect from Dalvik and the Android toolchain I'm working.. Dalvik converter dx and or JITter on Android 2.2 perform optimizations like the following Method inlining. Under what conditions private.. 2 be replaced by someInt 1 Etcetera... java android optimization dalvik share improve this question This is Ben one of the..
Is my Android App Draining Battery? http://stackoverflow.com/questions/5124013/is-my-android-app-draining-battery I can see I was a bit vague. Thanks again. java android optimization battery share improve this question Here is my suggestion..
Optimising Android application before release [closed] http://stackoverflow.com/questions/5626947/optimising-android-application-before-release great developers to share their knowledge. java android optimization share improve this question At some point you are going..
Compile with Proguard gives SimException UNEXPECTED TOP-LEVEL EXCEPTION http://stackoverflow.com/questions/5701126/compile-with-proguard-gives-simexception-unexpected-top-level-exception away if you not only don't obfuscate but also skip the optimization step dontoptimize . But you want to have this for the size reduction... SourceFile LineNumberTable keep allowshrinking allowoptimization class methods This way you can do partial obfuscation and still..
Removing unused strings during ProGuard optimisation http://stackoverflow.com/questions/6009078/removing-unused-strings-during-proguard-optimisation is .append answer .toString So the logging is gone but the optimization step still leaves some fluff behind. It's surprisingly tricky..
Prevent Proguard to remove specific drawables http://stackoverflow.com/questions/6280188/prevent-proguard-to-remove-specific-drawables These images are removed by Proguard from apk during optimization. Does somebody know a way to keep these files even if they are.. directly in the java code Many thanks in advance android optimization delete drawable proguard share improve this question I had..
Android Performance - 'Avoid Internal Getters/Setters' http://stackoverflow.com/questions/6716442/android-performance-avoid-internal-getters-setters OR inner b.innerObject java android performance optimization share improve this question The performance hit of using..
http://stackoverflow.com/questions/7038986/android-custom-listview to optimize your ListView performance and along with optimization you used ViewHolder pattern. Copied from Specs With little more..
Prevent ViewPager from destroying off-screen views http://stackoverflow.com/questions/8348707/prevent-viewpager-from-destroying-off-screen-views position. These views are all simple lists and this optimization is completely unnecessary so I'd like to disable it. It's causing..
Causing OutOfMemoryError in Frame by Frame Animation in Android http://stackoverflow.com/questions/8692328/causing-outofmemoryerror-in-frame-by-frame-animation-in-android content of your animation change with each frame Another optimization could be to animate only the portion that actually changes and..
EditText in ListView without it recycling input http://stackoverflow.com/questions/9438676/edittext-in-listview-without-it-recycling-input view from recycling its views. View recycling is a huge optimization. For a lot of really good info on lists see the google IO talk..
Proguard with OrmLite on Android http://stackoverflow.com/questions/9853096/proguard-with-ormlite-on-android ‹Context But I get another classmembers errors. android optimization obfuscation proguard ormlite share improve this question ..
How ListView's recycling mechanism works http://stackoverflow.com/questions/11945563/how-listviews-recycling-mechanism-works is already checked this is why listview is re using the same view not creating a new for you due to performance optimization. Important things 1 .Never set the layout_height and layout_width of your listview to wrap_content as getView will force..
Can you use the merge tag with fragments? http://stackoverflow.com/questions/13348455/can-you-use-the-merge-tag-with-fragments method to which to attach the inflated layout and return this wrapper layout but this will make the merge tag optimization useless as you could add the wrapper layout in the xml layout file from the start @Override public View onCreateView LayoutInflater..
What is the android UI thread stack size limit and how to overcome it? http://stackoverflow.com/questions/16843357/what-is-the-android-ui-thread-stack-size-limit-and-how-to-overcome-it frame limit is a joke. Assuming there's no miracle solution on #3 any recommendations for where the core hierarchy optimization should be done Crazy idea I noticed that every view layer adds about 3 function calls View.draw ViewGroup.dispatchDraw ViewGroup.drawChild.. gives accurate results although I've only compared the native x86 emulator to a real device . Keep in mind that optimizations to how the actual widgets layouts are implemented may also influence this. Having said that I believe that most of the..
Designing android apps for tablets http://stackoverflow.com/questions/17938163/designing-android-apps-for-tablets application The app runs perfectly on both Nexus 7 and Nexus 10 in the emulator. Also in the developer console under optimization tips it says Your Production APK needs to meet the following criteria Uses available screen space on 10 inch tablets A screenshot..
Need to handle uncaught exception and send log file http://stackoverflow.com/questions/19897628/need-to-handle-uncaught-exception-and-send-log-file Log.v and Log.d have no side effects even though they do since they write to the logs and thus can be removed during optimization assumenosideeffects class android.util.Log public static int v ... public static int d ... That's it If you have any suggestions..
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 optimizations can I expect from Dalvik and the Android toolchain I'm working on a high performance Android application a game and though.. little about this topic on the web. Will the Java compiler Dalvik converter dx and or JITter on Android 2.2 perform optimizations like the following Method inlining. Under what conditions private methods can always safely be inlined will this be done.. hit on a typical Android device Simple arithmetic. Will someInt 2 be replaced by someInt 1 Etcetera... java android optimization dalvik share improve this question This is Ben one of the engineers working on the JIT @ Google. When Bill and I started..
Is my Android App Draining Battery? http://stackoverflow.com/questions/5124013/is-my-android-app-draining-battery is at all possible . Reading back on my original question I can see I was a bit vague. Thanks again. java android optimization battery share improve this question Here is my suggestion I watch power consumption while developing my apps that sometimes..
Optimising Android application before release [closed] http://stackoverflow.com/questions/5626947/optimising-android-application-before-release been in. Please vote up great answers as that will encourage great developers to share their knowledge. java android optimization share improve this question At some point you are going to get to the point where using known tricks will hit their..
Compile with Proguard gives SimException UNEXPECTED TOP-LEVEL EXCEPTION http://stackoverflow.com/questions/5701126/compile-with-proguard-gives-simexception-unexpected-top-level-exception better source to explain why see his answer . The problem goes away if you not only don't obfuscate but also skip the optimization step dontoptimize . But you want to have this for the size reduction. Another way to solve it is to drop the debug flags.. information and class and method names information keepattributes SourceFile LineNumberTable keep allowshrinking allowoptimization class methods This way you can do partial obfuscation and still have equivalent good stacktraces. I still suggest you create..
Removing unused strings during ProGuard optimisation http://stackoverflow.com/questions/6009078/removing-unused-strings-during-proguard-optimisation this to something like new StringBuilder .append The answer is .append answer .toString So the logging is gone but the optimization step still leaves some fluff behind. It's surprisingly tricky to simplify this without some deeper knowledge about the StringBuilder..
Prevent Proguard to remove specific drawables http://stackoverflow.com/questions/6280188/prevent-proguard-to-remove-specific-drawables code in HTML img src file android_res drawable myfriend.png These images are removed by Proguard from apk during optimization. Does somebody know a way to keep these files even if they are not used directly in the java code Many thanks in advance.. know a way to keep these files even if they are not used directly in the java code Many thanks in advance android optimization delete drawable proguard share improve this question I had a similar issue and wanted to add just a few bits. The resources..
Android Performance - 'Avoid Internal Getters/Setters' http://stackoverflow.com/questions/6716442/android-performance-avoid-internal-getters-setters from an Android performance perspective inner ob.getInnerObject OR inner b.innerObject java android performance optimization share improve this question The performance hit of using internal getters and setters also applies to external getters..
http://stackoverflow.com/questions/7038986/android-custom-listview called. The method you copied here is a part of EfficientAdapter to optimize your ListView performance and along with optimization you used ViewHolder pattern. Copied from Specs With little more explanation position The position of the item within the..
Prevent ViewPager from destroying off-screen views http://stackoverflow.com/questions/8348707/prevent-viewpager-from-destroying-off-screen-views view when it is more than one swipe away from the current position. These views are all simple lists and this optimization is completely unnecessary so I'd like to disable it. It's causing some visual problems because the lists have layout animations..
Causing OutOfMemoryError in Frame by Frame Animation in Android http://stackoverflow.com/questions/8692328/causing-outofmemoryerror-in-frame-by-frame-animation-in-android video not necessarily the most efficient. Does the entire content of your animation change with each frame Another optimization could be to animate only the portion that actually changes and chop up your bitmaps to account for that. To summarize you..
EditText in ListView without it recycling input http://stackoverflow.com/questions/9438676/edittext-in-listview-without-it-recycling-input First of all you really don't want to prevent a list view from recycling its views. View recycling is a huge optimization. For a lot of really good info on lists see the google IO talk http www.youtube.com watch v wDBM6wVEO70 That being said..
Proguard with OrmLite on Android http://stackoverflow.com/questions/9853096/proguard-with-ormlite-on-android add this keepclassmembers class public init android.content. ‹Context But I get another classmembers errors. android optimization obfuscation proguard ormlite share improve this question Thank you a lot for posts like this that help us to advance..
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