interface, but more than 1.41M!!! This is key.Next, let's find out where the leak happened. Click Dump Java Heap to generate the snapshot file Tool.test.memory.memoryleak_2016.11.13_21.38.hprof,android Studio automatically pops up hprof viewer to analyze it.Snapshot file analysis. pngNow introduce the usage of the Hprof Viewer
HPROF Viewer View modeThe upper-left corner of the two red boxes, is an optional list, is used to select the heap ar
ClicksResellingResale, this when there is an opportunity on the mobile phone, if there is no suitable ads on the platform, to notify other advertising providers, if more than one advertiser response, you need to bid. Bid high bidder.Aggregation platform. Let each ad platform bid. (......)System defects1, some apps do not appear on the homepage ads, may need to open other pages2, advertising platform monitoring for virtual machine run, refused to push ads3, all the experimental requests are on a
" >//Timeout detection} catch (IOException e) {new Alertdialog.builder (Mainactivity. This). Settitle ( "hint"). Setpositivebutton ( "good", null". Setmessage ( "The server is down, please contact the administrator and click" Send "again after the server is turned on to submit the data"). Show (); Client.disconnect (); E.printstacktrace (); } PostScript:Originally just a simple record of their own ideas, writing is very humble, did not think slowly th
Supports thawing and freezing apps
Support to hide specified app in the app list
Support detection system core app to prevent delayed freezing causing cell phone to become brick
Support Cleanup App Cache
Support Force Stop Ap
savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_second); mLeak = new Leak(); } class Leak { }}Find memory leaksLaunch the app, click Enter SecondActivity , then press the Back button to return to MainActivity . Open the .hprof file. Look for our package name com.dyk.memoryleak .As you can see, although we are finished SecondActivity , but SecondActivity still exist, memory leaks
The principle of app upgrade is very simple, get the latest version of the service side of the release information, and its own version of the information, if its own version is low, you can prompt users to download the new version. For Android apps, version information is primarily stored in the Androidmanifest.xml file: Android:versioncode represents the version number, which is an integer, Android:versi
Description: Only basic test logic is described here
Sort out a list of top-level pages that the app needs to focus on
Basic tools: UT (internal tools, inconvenient to reveal details)
Introduce the Timeprofile class in the development code: This class is the top of the UT, exposing some simple time-of-day methods, start (), End (), and so on;
In the corresponding code of the first level page, mainly refers to the activity class, the Onc
Many of the Android code is not all people, we know! Like a little taller on the dot ad implanted. But in order to let the user mobile phone installed on the anti-virus software does not detect ads,We need to take the following non-normal means, as follows:When we write the Android app code, we will put all the code in the SRC directory, but when we package the
RefWatcher monitoring Fragment:Publicabstract class basefragment extends Fragment { @Override public void ondestroy{ Super. OnDestroy(); refwatcher refwatcher = exampleapplication. Getrefwatcher(getactivity()); refwatcher. Watch(this); }}Working mechanism
RefWatcher.watch()Create a keyedweakreference to the object to be monitored.
Then the background thread checks if the reference is cleared, and if not, the GC is called.
If the reference is still not cleared, dump the heap
Speaking of Android phone, most people's impression is a bit of time to become a little lag, some programs in the run inexplicably crashes, open the System folder A look, found a lot of files, and then use the mobile phone butler APP constantly clean optimization, just feel the speed slightly improved point, Even if the mobile phone in a variety of performance in front of the software score ahead, or feel n
Android's method of detecting memory leaks is more and more convenient, and the following is a list of ways to detect C + + memory leaks in different scenarios.Android O (for root device, debug app)1. Prepare a userdebug or ENG version of the phone, download the native_heapdump_viewer.py script backup2. Execute the following command' "Libc_debug_malloc_options=backtrace" '3. Execute the recurrence path n times4. Execute the following command, where/so
Speaking of Android phone, most people's impression is a bit of time to become a little lag, some programs in the run inexplicably crashes, open the System folder A look, found a lot of files, and then use the mobile phone butler APP constantly clean optimization, just feel the speed slightly improved point, Even if the mobile phone in a variety of performance in front of the software score ahead, or feel n
changed the place where the body was escaped. The salt value was replaced before.
I don't know what the author thinks. To escape from the body. I'm going to turn around. You're in there. You've lost the equal number.
13. Conclusion
To be honest, the one with the right. I said it would take some time. I didn't think the next step was success.
Through this Hello Word's Android app. found that
Recently read the article "Speed Up your app". This is an article on the Performance analysis and optimization of Android apps. In this article, the author describes his app analysis optimization rules, the tools and methods used. I think we should learn from it. Good English readers can read the original text (link: http://blog.udinic.com/2015/09/15/speed-up-you
Android APP performance analysis methods and tools, androidapp
I recently read Speed up your app. This is an article about Performance Analysis and Optimization of Android apps. In this article, the author introduces the APP analysis and optimization rules, and the tools and
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