simple compass app for android

can seriously occupy the memory area of young generation and will trigger the GC when the threshold is reached and the remaining space is insufficient. Even though each allocated object consumes little memory, stacking them together increases the pressure on the heap, triggering more other types of GC. This operation may affect the frame rate and make the user aware of the performance problem (frame rate is the concept of Android rendering mechanism,

"android:duration= "a"Android:fillafter= "true"Android:startoffset= " the" />Set>Here I have configured four animation effects, if you want to re-set the new animation effect, you can change in this area, ha. Roughly speaking, since before and after loading the animation, WindowManager through Mparams to determine the display position of the toast, so the first translate function is to let the toast at the beginning of loading to jump to the location, The other animation is to finish the

learning tint:1. A vector map to match all colors (mom, don't worry about me looking for pictures anymore). 2. A more elegant way of selector implementation.Steal a picture test sledgehammer, a vector map to match all colors. How to implement the effect method in code one: The XML method is very simple to look directly at the code; Imagevie Androi ... Read the originalAndroid High Imitation American Group home category buttonPractice, first on GIF ch

41s 316ms Partial (1 times) RealtimeWake lock alarmmanager:32ms Partial (times) RealtimeTotal wake:24m 41s 348ms partial, 4s 729ms window realtimeSensor GPS: (not used)Proc *wakelock*:cpu:9s 230ms usr + 9s 470ms krnProc com.xxxx.xxxx:Cpu:1s 120ms usr + 770ms KRNProc com.xxxx.xxxx::cpu:33s 140ms usr + 7s 320ms krnAPK com.xxxx.xxxx::Service com.xxxx.xxxx::Created for:47m 23s 532ms uptimeStarts:1, Launches:1Service com.xxxx.xxxx::Created for:15s 910ms UptimeStarts:19, launches:19......4) Monitor

I 've been a little busy recently. I have to go to work tomorrow. I'm so angry. I am only free to post these two articles ··· The last time I talked about an idea, I first got the UI out. Android provides several data storage methods: 1, shared preferences 2, SQLite Database It is good to use sharedpreference for some simple small functions. Next we will implement a sign-in function. Let's take a look a

Because companies need to access Google's in-app payments (that is, Google's In-app billing V3), access to a lot of articles in the process, but also encountered a lot of problems. So I would like to share with you and the exchange of ideas, good nonsense not much to say below we began to access Google's in-app payment.The first step: getting Ready for workFirst

Android App Incremental update instance--smart app Updates Introduced What you see is an open Source library for incremental updates to the Android app. Includes the client, the service end two parts of code. Principle Since the start of

), using Web technology.Because these JavaScript APIs are consistent across multiple device platforms and are created based on web standards, porting the application is convenient and basically doesn't change.Apps that use Cordova are packaged into applications using the Platform SDK and can be downloaded and installed from the App Store for each device.Cordova provides a unified set of JavaScript libraries for calls that support iOS,

Reviews: Remember there was a time when a lot of SRC platform was brushed a large number of app local denial of service vulnerability, mobile security Team Love Beta (ineice.com) found an Android client generic denial of service vulnerability, to see their detailed analysis it.0xr0ot and Xbalien A common local denial of service vulnerability was found when all of the exception types that could lead to the a

: Enter the key and channel id. only one channel can be added to a package, as shown below: Integration code Call MobclickAgent. onResume (Context) in the onResume method of each Activity, and call MobclickAgent. onPause (Context) in the onPause method ). If there is an inheritance relationship between activities, do not add the onResume and onPause methods repeatedly. otherwise, repeated statistics will appear, affecting the statistical results. If the

We all know that the beautiful app will always give users a refreshing feeling, in order to seize the user more large network companies to make their products more gorgeous, and the most simple effect is the activity jump effect, not only can make users look comfortable, but also to achieve a particularly simple, good, Below let us achieve these effects, farewell

. All you need to do is import this jar library into your project.During the import Classes.jar process, there are two issues that may occur (I use the Eclipse development environment, so I will only explain the issues that this environment encounters). Problem one is to import this jar Library by importing a different jar , and find that the compilation is slow, and sometimes not even compiled successfully, eclipse crash or prompt for "java.lang.outofmemoryerror:javaheapspace" error. Th

1This is a simple analysis of the common memory leaks caused by Activity, in fact, there are many memory leaks, but the rationale is the same. Because of space reasons, here do not introduce too much, and then gradually analyze and learn.Although the memory of mobile phones is getting bigger and larger, memory leaks will not cause OOM as previously due to too little memory. However, excessive memory leaks can still cause memory overflow and

In Android application development, we will use a variety of code debugging, in fact, after the development of Android, we may encounter some random problems, such as high CPU, memory leaks, etc., we can not easily debug code, we need a system log and so on, Below I grasp a few common commands and methods encountered in the work to show you practice.1.logcat commandThis command is easiest to use and can be

Develop a particularly simple small Android app that mainly does these things:1. Configuring the Activity_main.xml FilePlacing a textview and a listview,textview for displaying text, the ListView setting ID asks Listview0 for placing multiple item;The position (location) and ID (the first few lines) of item are starting from 0 (Onitemclick (adapterview2. New List

Many Android apps have a feature that scores for us, that is, click to open the relevant app in the app market details page.In fact, this feature is very simple to implement.Open the App details page try {Intent i = new Intent (Intent _view) ; I.setdata (Uri.parse (" mark

Enable the app market in Android. In many Android apps, many of them have a feature that scores us. You can click the feature to open the details page of the app in the app market.In fact, this function is very simple to implemen

Current company project needs, a main app, need to open some small apps, these small apps are integrated unity, but still Android program (all small app package name is known).Did not do before, query the implementation method, in fact, is quite simple, testing can also.The code is relatively

WelcomeActivity. The implementation is actually very simple. The Code is as follows: 1 Intent intent = new Intent(this, HomeActivity.class);2 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);3 getActivity().startActivity(intent); Normally, this code is okay, but if your App has an activity that is not in the same task stack as the current set page activity (for example,

IntroductionNetwork has been my personal blind spot, a while ago to take time to learn a bit volley network tools to use, but also through the source of further learning, have some experience to share. In Android development, a lot of mature network tools, Android comes with HttpClient, as well as okhttp, as well as the Koush great God created ion open source project, and then Google later added to the sour