Mobile Develop

Android uses-permission Permissions DaquanWhen writing certain programs, you need to call some features of your phoneAt this point you must remember to enable the relevant uses-permission,Many of the code posted on the Internet does not contain the

in the use of components, sometimes we may not use the component temporarily, but do not want to kill the component, such as the creation of a broadcastreceiver broadcast listener, used to listen to the first boot after booting to obtain a lot of

I see the Internet this week on the dynamic increase the ListView each item layout, today time to write a, convenient for their future use, this effect is very good, using the adapter notifydatasetchanged () method, When you click on each item, the

The object is in the heap, the heap is only responsible for the partition of the memory space, the memory space does not set its type, any type of pointer can point to this address, but the type of incompatible in Xcode will have a yellow

In Android apps, Onfocuchangelistener focus events are essential, and we'll learn how to do it on the basis of the previous chapter.Basics: Onfocuchangelistener EventsFirst, the interfaceOpen the "res/layout/activity_main.xml" file.1. Drag the 2

Android's edit box control edittext often used in normal programming, sometimes add some restrictions to the edit box, such as limit only enter the number, the maximum number of input text, can not enter some illegal characters, etc. Some of these

IPhone APP Listing process1. Apply App ID(1) Connect to Developer Web page (http://developer.apple.com).(2) Enter IOS Provisioning Portal.(3) Click on the App IDs on the left.(4) Click the New App ID in the top right corner.(5) Description: Enter

Recently in the development of basic Modbus Protocol of the Android PLC control program, C # version of the program does not have any problems, moved to Java under a variety of problems, which is more troubling is Java.net.SocketException:recvfrom

Packagemanager relatedThis API is an encapsulation of all data structures based on loading information, including the following features:Install, uninstall application query permission Related InformationQuery application related information

about classes that are not exposed in Android (classes hidden with @hide)Excerpt from: http://wangsheng2008love.blog.163.com/blog/static/78201689201142643413482/If you look at the source code of Android, you will find that there are many classes in

This wiki page would demonstrate-"how to add the system service to the Android framework". Example-"Adding a Bluetooth HID service"-taken as reference of understanding. This would also help to add support for more Bluetooth profiles into the Android

String directoryname = Environment.getexternalstoragedirectory (). toString () + "/filename";////file save path// Incoming parameters: Context object, file save path; Downloadtask downloadtask = new Downloadtask (this,

Android:scaletype= "Center"Based on the geometric center point of the original image and the geometric center point of the Imagview , the original size of the picture is centered, not scaled, and when the picture is longer/wider than the

Version: 1.0Date: 2014.7.292014.7.30Copyright: © kince Reproduced in the sourceA key cleaning is a lot of launcher will have the function, and its effect is more beautiful. There may be a lot of implementations, one of the common is the use of

There are two ways to use uicollectionview like table viewOne is inherit Uicollectionviewcontroller, this controller will bring a uicollectionview;The other is to create a uiconllectionview view that is placed inside the normal Uiviewcontroller.We

1. Android Multi-screen support mechanismAndroid's support for multi-screen mechanism is used to provide an appropriate way for the current device screen to co-manage and resolve application resources. The Android platform supports a range of

Most of the internet is putting Android projects into unity to pack into. apk. But I feel so bad, because I use the idea of iOS, unity and iOS interaction is using unity to export Xcode project for two times development, in fact, unity can also

One program to jump to another program. Need to be modified in the plist file of the target program:Open info.plist, add a URL typesExpand URL Types, expand Item0, and change the URL identifier under ITEM0 to URL SchemeExpand URL Scheme To modify

The automated testing of Android application will inevitably involve registration login function, and many registration login or change password function often need to enter SMS verification code, so it is necessary to automatically obtain the

Yesterday, Ali's telephone interview, let me find a lot of shortcomings, a lot of small knowledge points usually do not pay much attention, well, the first blog to analyze the various size units in Android.Interview Question 1:"What are the