data tracking app android

Last introduced to you how to achieve a jump Method of the A-B in the app, this time I will introduce you to how to use the explicit intent of intent to access the system app. 1: Intent Introduction Intent data transmission can be divided into explicit and implicit intent. explicit means that a specific Activity can jump, while implicit intent means that there is

The difference between iOS and Android in app testing :1, Android Long press the home key to call out the app list and switch apps, then right-swipe to terminate the application;2. Multi-resolution test, more than 20 kinds of Android, less iOS;3, mobile phone operating syste

Recently in the company to do a car networking products, because the company itself specializes in automotive decoder research and development, so the realization of the product's diagnostic function in addition to the use of the current market access to a large number of network products used in the OBD protocol, will also use some special car special protocol to achieve some specific diagnostic functions, such as window window, maintenance zero, Read the TPMS

this machine), and let friends from all over the test, can be accessed (full port mapping requires access to the end of the installation of visitors, So I still recommend that you charge a few dollars for T-currency with non-full port mapping). Below is the effect of accessing my site directly with the mapped extranet address I configured, two buttons to the background two Ajax calls and corresponding return values. See, the service is very simple, cheap smile.To here a NAT123 established by th

The performance test simulates various normal, peak, and abnormal load conditions through automated test tools to test the system's performance indicators. And the performance of the app is getting more and more attention, let's introduce the performance test method of the app. However, the performance test is a reference value, and no matter what test method is impossible to accurately test the actual perf

original apk file size)Installation process:Copy the APK installation package into the Data/app directory, unzip and scan the installation package, save the Dex file (Dalvik bytecode) to the Dalvik-cache directory, and create the corresponding application Data directory in the Data/

difference.On devices that do not have a JIT, reading the cache domain is about 20% faster than reading the actual data directly. When there is a JIT, the domain reads and the local reads basically no difference. So optimization is not worth it unless you think it makes your code easier to read (which is also true for final, static, static final fields).Method 11: Get the benchmark for performance tuningBefore you optimize, you should make sure that

limit function, through the network speed limit function, you can simulate some of the user's real environment. Fiddler provides the network speed limit plug-in, which we can download on his website: http://www.telerik.com/fiddler/add-onsClick "Download", after the download is complete, click Install, you need to restart the fiddler, after restarting Fiddler, you can see the Fiddler Toolbar tab, a more fiddlerscript option.For example, I need to delay a period of time before the request can be

, and the project is not perfect, for example, after querying the word to do other functions of the operation again return the word query function before the data can not be saved, the user experience is not good. Here of course I also know some solutions to save the current fragment state, but I still lazy. Laziness is really an old enemy.There is not enough detail on the article, but the main code has been written. I know, sometimes solving a functi

save only a subset of the model objects in memory at any given time, use patterns to describe narrative model objects, agree to maintain non-intersecting collections of editing objects, support data storage version number management and migration.Version number management allows you to easily upgrade the user files of the old version number to the current version number. Agree to store data in ICloud and t

Reference: 1, Lao Luo's Android tour http://blog.csdn.net/luoshengyang/article/details/66897482,Android core analysis/HTTP Www.linuxidc.com/Linux/2011-04/33966.htmAndroid System Start-up:We want to have a picturesystem architecture Diagram:One, the above with git download the compilation process slightly off, directly to see the final product of our build. The most important product of Build is three image

="(("+ Contacts.display_name +"Notnull) and ("+ Contacts.has_phone_number +"=1) and ("+ Contacts.display_name +"! =")) ";return NewCursorloader (Getactivity (), BaseUri, Contacts_summary_projection, select,NULL, Contacts.display_name +"COLLATE localized ASC"); } Public voidOnloadfinished (loader//Swap the new cursor in. (The framework would take care of closing the //Old cursor once we return.)Madapter.swapcursor (data); } Public voidOnloaderr

responsible for installing the system application: The zygote process starts in the Android system during the boot process . Systemserver Components , The systemserver component starts the packagemanagerservice service, Activitymanagerservice Service and so on . Packagemanagerservice service startup process : Create a Packagemanagerservice service instance , Span style= "line-height:1.6;" > add this service to ServiceManager

10 suggestions for efficient Android App development, If you want to make the most failed case on Google Play, the best secret is that the interface is extremely slow, consumes power, and consumes memory. Next, you will get negative comments from users, and your reputation will become bad. It is useless even if your applications are well designed and creative. Every problem that affects product efficiency,

data) to receive the results returned by Activity2,You must call finishactivity (int requestcode) in Activity1 to end the Activity2.(typically called by the Onactivityresult method to end Activity2).Force finish another activity so you had previously started with Startactivityforresult (Intent, int).Also, the following two methods, you can refer to the documentation and source research.Finishactivityfromchild (Activity child, int requestcode)Finishfr

Android activity jump animation makes your APP instantly beautiful, androidactivityapp We all know that beautiful apps will always give users a fresh feeling. In order to seize the user's larger network companies to make their products more beautiful, the most simple effect is the Activity jump effect, it not only makes the user look comfortable, but it is also very simple to implement. Let's achieve these

Carnival" is held every few weeks by Apple to reward its employees with free beer and appetizers.) ）4, FramerFramer Studio is a prototyping app on your Mac, but framer.js only needs safari or chrome.Interactive prototype design Framework Framer.js official website: http://framerjs.com/There are no drag-and-drop, buttons or connection points, with framer you have to "write code". Programmers feel that this is as comfortable as at home, and designers a

I know less about the development of the service side, do not know what the heroes recommend to learn what technology, read what books, or good advice? And what technologies and frameworks are used in the current mainstream app service, and what frameworks and technologies are used in Python development? Thank you for your answer first! Reply content:General apps need to interact with the server, and app de

different positioning for the application, so the application launch requirements are not the same. For example, some do ROM company, its built-in application start time must be very fast, so that the user's first feeling is fast, smooth; The internet company app is not very concerned about the startup speed, most of the Internet company's applications have a launch page, used to display ads or feature introduction, etc. The main interface is then en

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