traceview

(newStrictMode. ThreadPolicy. Builder () . DetectAll (). penaltyLog (). build ()); StrictMode. setVmPolicy (new StrictMode. VmPolicy. Builder () . DetectAll (). penaltyLog (). build ()); } Super. onCreate (); } If the main thread has network or disk read/write operations, there will be log output of the "D/StrictMode" tag in logcat to locate the time-consuming operation code. 3) if the main thread has no time-consuming operations and choppy operations, it is very likely that some logic that mus

file at the SD card root, which contains information such as the invocation of all methods during the execution of the A () method, which can be opened using the TraceView tool provided by the SDK, which is an Android A script file under the Tools directory of the SDK. First copy the file down with ADB pull/mnt/sdcard/123.trace, then execute TraceView 123.trace to open the

These days idle bored, on the phone on the developer mode inside the "GPU over-drawing" function, to see what other apps do, and then accidentally opened the "Jane Book", and then it was stunned by its excessive drawing, so wrote this article of performance analysis, from a only apk file angle, Here's how to look for possible performance problems in the layout, as well as solutions. This article is based on the latest version of 1.9.1 Android. GPU Over-drawing H

Android Application optimization (6) tools and android application tools This article describes several tools used for performance analysis on Android, all of which are provided by the SDK. Each tool is powerful enough for your analysis and use. TraceView This tool SDK document is more casual, so I will talk about what is there. However, if you really want to use it to analyze the problem, you also need to know in detail how to use it and quickly loca

Original memory optimization for feeds on Android--[udi Cohen] (https://www.facebook.com/udinic).Millions of people run Facebook on Android devices, browsing news, information, events, pages, friends circles and the information they care about. A team called Android Feed Platform created a new platform to provide this information. Therefore, any optimization of this platform will benefit our application. We focus on the efficiency of scrolling, hoping to satisfy people's thirst for knowledge whi

a simple command-line tool that can help you find unnecessary control nesting and other ways to reduce layout resources in order to minimize the use of resources. It allows you to understand which layout controls may be superfluous or unnecessary. The less control, the lighter the layout level, the better the performance. Finally, do you think your application is doing the best you can? Now it's time to test it. 　　Tenth point: Using TraceView and o

) errors that can be found in the Output Errors section of the report. You can also find deadlocks or some violations of strict mode in the stacktrace of the output report. Second, the use of Chkbugreport The use is simple: 1 Java-jar $HOME/downloads/chkbugreport.jar $HOME/tmp/bugreport.txt You can also add Chkbugreport.jar to the path and use this 1 Chkbugreport Thebugreport.txt The tool will output an analysis result directory based on your b

development efficiency.　　9) Use Layoutopt for layout optimizationLayoutopt is a simple command-line tool that helps find unnecessary nesting of controls and reduces layout resources, making it possible for your app to be "slim". The fewer controls, the lighter the layout hierarchy, the better performance.　　10) Use Traceview and other Android tools for analysisThe Android SDK comes with a number of tools for application analysis, the most popular bein

at this layer, which is equal to the built-in applications. You can call the built-in applications or replace the built-in applications. About the Android IPC Mechanism IPC is short for internal process communication and is a resource that shares "named pipes. The IPC Mechanism in Android is used to allow interaction between Activity and Service at any time. Therefore, in Android, this mechanism is only applicable to communication between Activity and Service, similar to remote method calls

time, you can use mIconCache = new IconCache (this); To set the application's Icon cache, and then declare LauncherModel, mModel = new LauncherModel (this, mIconCache ); launcherModel is mainly used to load icons, plug-ins, and folders on the desktop. At the same time, LaucherModel is a broadcast receiver. When the package changes, the region, or configuration file changes, it will send a broadcast to LaucherModel, laucherModel will perform the corresponding loading operations based on differen

find unnecessary control nesting and other ways to reduce the layout of resources, so as to minimize the use of resources. It allows you to understand which layout controls may be redundant or unnecessary. The fewer controls and the lighter the layout, the better the performance. Finally, do you think your application is the best? Now we have to test it. 　　Tenth key point: Analysis Using Traceview and Other Android tools The Android SDK comes with ma

, and then let the application download the content suitable for the device. Eighth point: Use the Hierarchy Viewer tool The Hierarchy Viewer tool can help you debug your application layout. It also provides valuable analysis information to understand how much time each view control in the layout takes to measure, render, and draw. It is easy to solve the problem only when the root cause of the problem is found accurately. Ninth point: Use the layoutopt Tool Layoutopt is a simple command lin

traceview to know if there's a problem with the program. Android.os.Debug.startMethodTracing ("Application"); Android.os.Debug.stopMethodTracing (); Generate/sdcard/application.trace files, use TraceView to open to track time-consuming functions at startup My program started at more than 1s, found that most of the consumption in the layout and drawing, originally if the layout of each additional large ima

mechanism of AndroidIPC is the abbreviation for internal process communication and is a resource for sharing named pipes. The IPC mechanism in Android is designed to allow interaction between activity and service at any time, so the mechanism in Android is only suitable for communication between activity and service, similar to the remote method invocation, similar to the C/S mode access. Define the IPC interface by defining the Aidl interface file. The Servier end implements the IPC interface,

1. TraceView of Android Debugging ToolsHttp://www.cnblogs.com/devinzhang/archive/2011/12/18/2291592.htmlTraceView is a performance analysis tool. Similar to the timer instrument in Xcode.Http://www.cnblogs.com/devinzhang/category/349644.html2. Android Code debugging tool TraceView and dmtracedump the twists and turns deductionHttp://www.kuqin.com/mobile/20110828/264079.htmlThe original intention of Dmtraced

) Use layoutopt for layout optimizationLayoutopt is a simple command-line tool that helps find unnecessary nesting of controls and reduces layout resources, making it possible for your app to be "slim". The fewer controls, the lighter the layout hierarchy, the better performance. 　　 10) Use TraceView and other Android tools for analysisThe Android SDK comes with a number of tools for application analysis, the most popular being

blue section below is long enough to indicate that the part of the software draw is too time consuming, you can continue to analyze draw's Java code through TraceView. (I assume the current app is a hardware-accelerated approach.) If the middle red part is long, it is too time-consuming for the OpenGL ES drawing process. You can use Gltrace to analyze the calling process of OpenGL ES.Using the Weibo app after opening the options, I found that althoug

Introduction1. Mastering the design of mobile mobile app Automation test framework2. Mastering the mobile phone app performance test method, using TraceView to complete3. Master mobile phone app Automation test framework Robotium4. Master mobile phone app Automation test framework Appium5. Mastering the mobile phone app continuous Integration JenkinsLesson 1:android CTS Compatibility Testing Framework CombatPreliminary study on automatic test of clas

and its memory is managed by the GC, so it does not have to be released manually by calling the Bitmap.recycle () method;Using picture caching: Designing memory caches and disk caches makes better use of bitmap.(2) Code optimizationUsing the static method, it will increase the access speed by about 15% than the normal method;Try not to use enumerations or iterators; [I don't know why]To the cursor, Receiver, Sensor, file and other objects, we should pay great attention to their creation, recove

The tool TrackView that comes with the Android SDK is located in the Tools directory of the SDK. To use: Go to Tools and runTraceView E:\loginActivityTracing.traceCan. How did the trace file build?There are two ways of generating1, use code generation, want to tune which tune.You only need to call where it needs to be called.Debug.startmethodtracing ("loginactivitytracing");And where the end call is calledDebug.stopmethodtracing ();The Loginactivitytracing.trace file is generated in the root dir