should get antivirus for android

The Android system is a Linux system, and we can use the Linux command Mouunt to get a Linux mount directory. The directory that the obtains from the command I did not traverse, and if you still cannot get it, you can iterate through all the directories that the mount has been to. filesdcard; @SuppressLint ("Sdcardpath") publicfilegetsdcardfile () { if (sdc

This article illustrates how Android uses the sensor sensor to get the direction of a user's movement. Share to everyone for your reference, specific as follows: Today continue to share a second important sensor, in fact, to get the direction of the things should be very simple, in the previous article to see that there is a type_orientation keyword, you can dir

(dialoginterface dialog, int which) {Intent Intent = new Intent (); Intent.setaction (Settings.action_application_details_ SETTINGS); Intent.addcategory (Intent.category_default); Intent.setdata (Uri.parse ("package:" + getpackagename ())); Intent.addflags (Intent.flag_activity_new_task); Intent.addflags (intent.flag_activity_no_history); Intent.addflags (intent.flag_activity_exclude_from_recents); StartActivity (Intent); } }); Builder.setnegativebutton ("Cancel", null); Builder.show ();}}Data

.MediaMetadataRetriever class:mediametadataretriever() is not a construction method.The public method of the 4.MediaMetadataRetriever class. For example, as seen in:Watermark/2/text/ahr0cdovl2jsb2cuy3nkbi5uzxqv/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/dissolve/70/gravity /southeast ">It is possible to understand the usefulness of these methods according to the explanations. One of the most frequently used methods is the Setdatasource method. Used to set the data source, which can be set from

Android 4.0 ~ Otherwise it will be reported:android.os.NetworkOnMainThreadExceptionWhat is Asynctask (forgive the baby to steal the picture hehe but really explain it very clearly)Attention:The instance of the task must be created in the UI threadThe Execute method is created in the UI threadAn exception occurs when a task can be executed more than once in a single callGeneral purpose Asynctask and the use of network requests for return data in the m

Tagged with: Android platform WebView Samsung AdapterA few days ago when writing a project, a webview was required to embed in the projectIt was done soon, and the test was no problem. But when they were sent to Singapore, they would have a text box focus when they tested it, and the page would zoom in (they tested it with a Samsung phone).On the internet for a long time reference his method plus to test http://www.cppblog.com/guojingjia2006/archive/2

 1. Location services, English translation for location-based services, referred to as lbs, also known as location services or position-based services, integration of GPS positioning, mobile communications, navigation and other technologies to provide space-related integrated application services, location-based services are developing rapidly, Covers all aspects of business, healthcare, work and life, providing users with a range of services such as positioning, tracking, and sensitive area w

How to modify the system time in Android (application obtains system privileges)The Systemclock.setcurrenttimemillis () function is available in the Android API to modify the system time, but no matter how you call this function is useless, regardless of the emulator or the real machine, in Logcat always get "unable to Open alarm driver:permission denied ". This

scaleddensity in Displaymetrics Class) A */ Public Static int sp2px (float spvalue, float fontscale) {[] (int) (Spvalue * Fontscale + 0.5f); /+ } $} But why do we have to add 0.5f at the end?According to normal reasoning should be dip = pxvalue/scale and px = dipvalue * scale,In fact, the exact value should be our reasoning, the reason behind the addition of 0.5f is because we want is not so accurate, according to the reasoning is a floating point, and we generally use int type is e

Step by step, you can learn http To Get tomcat server images, which are displayed on the android client, The simplest way is to use the server to download images to the client. At the beginning of the contact, record the images and hope to help new users. Before reading this article, you can read these two articles first. Error reported when loading web project: Tomcat version 6.0 only supports J2EE 1.2, 1

This article illustrates how Android gets the size of a mobile screen. Share to everyone for your reference, specific as follows: There are mainly three objects TextView, buttons, and Displaymetrics, where Displaymetrics is the key class to get the size of the phone screen , this example is very simple when we click on the button to trigger the event, Display the wide and high resolution of the mobile scre

Android provides DISPLAYMETIRCS class for easy access to resolution. The Displaymetics class is described below:The Displaymetrics class under the Andorid.util package provides a general information about the display, such as display size, resolution, and font.To get the Displaymetrics member, first initialize an object as follows:Displaymetrics metrics = new Displaymetrics ();Getwindowmanager (). Getdefaul

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Get Network Connection StatusWith the promotion of 3G and WiFi, more and more Android applications need to call network resources and detect the network connection status becomes the necessary function of network application.The Android platform provides the Connectivitymanager class for detection of network connection status.The

The GitHub project, website, Twitter, App and how to get the latest Android Open Source Library are now available in the collection of Android open source libraries.1. GitHubAndroid Open Source Project summaryAndroid Excellent Open source project implementation principle analysisPut these two in front, because of these two projects I and a group of small partners

Android Development Series (12): Get images on the network The process of obtaining a network slice: Get the image Url-> connect to the image object through the Url-> write the binary data of the image to the memory-> return the data in the memory-> display it First, we need to add permissions. Because we want to access the network, we need to add Network Access

Android Development Series (12): Get images on the network, The process of obtaining a network slice: Get the image Url-> connect to the image object through the Url-> write the binary data of the image to the memory-> return the data in the memory-> display it First, we need to add permissions. Because we want to access the network, we need to add Network Acces

Recently wanted to get an Android app that has access to the Internet, because it's fast so it uses Ruby on Rails to provide HTTP resources. This information is still relatively small, so the attempt to record the process.1 building Web application with Ruby on Rails1.1 New Web ApplicationCD Test1.2 Generate productRails Generate Scaffold Product reference:string quantity:decimalRake Db:migrateStart the ser

Many APIs of the Android SDK are hidden and I can't use them directly. But we can get the complete API library by compiling the source code of the Android system. After compiling the Android system source code, you can have all of its API libraries (JAVA) in the Out\target\common\obj\java_libraries directory. Of course

Android Bluetooth Low-Power (BLE) is a great tool to get the steps of Xiaomi bracelet, androidble Now the Internet of Things is booming, and Xiaomi's wristband and other products, next we will study the progress Logging Function of Xiaomi's wristband. Tool Package com. zsl. bluetoothdemo. ble; import android. bluetooth. export thadapter; import