android ui components list

thread, otherwise it will affect the responsiveness of your user interface. Simply put, services and activities run in the same main application thread, which is also known as the UI thread.Note: Do not confuse Android services (which are part of the Android English program) with Linux native services, server processes, or daemons (these are the lower-level

.)); v. getbackground (). setalpha (100 );}}}; Http://hi.baidu.com/doyee/blog/item/9cec678189ff48d4bd3e1e30.html Android UI event processing [isintouchmode ()] On the Android platform, there are many ways to capture user trigger events on the interface. The View class provides these methods. When you use various view views to layout the interface

the application design and intent to perform tests. Application designers often think that users will think that their application UI is very intuitive, but this may not be the case. Only by allowing users to test the application can you discover many unexpected problems before publishing the application. Additional skills: hire a professional art or image designer Now, users expect to see beautifully designed applications. Just as you don't wear any

intent to perform tests. Application designers often think that users will think that their application UI is very intuitive, but this may not be the case. Only by allowing users to test the application can you discover many unexpected problems before publishing the application. Additional skills: hire a professional art or image designer Now, users expect to see beautifully designed applications. Just as you don't wear any clothes to attend the inte

who are completely unfamiliar with the design and intent of the application to carry out testing. Application designers often think of themselves as users who feel their UI is intuitive and may not be the case. Only by really letting the user test the application can you discover many unexpected problems before releasing the application. Additional tips: Hire a professional art or graphic designer Now, users expect to see attractive and design-pr

this file, functions such as:You need to add a control, select the control you want to add in the left control list, left-click to drag to the right-hand view interface, and the control will be added to the activity layout, for example, the button in the interface is the one that I added, let's take a look at the code:There is an OnClick property in the button this is something, which we'll introduce later, and here we'll create a

Android main components of the program and the Manifest file Android consists of loosely-coupled components and binds togetherusing Manifest, and Manifest describes the interactions between each component and them, as well as the metadata of the application, its hardware and platform requirements, External libraries an

Android Ui update (2)World in code 1. Review The first part describes the methods and opinions on Ui thread update, and then describes the Thread Check Mechanism. Here we will analyze in detail the message system model in Android, which is the core of Ui update. Of cours

in the onclick, simulate the download. In fact, it should be open a service, in the service to open a new thread simulation download, so that is back off the current activity, download is still in progress, here is just a simple foreground simulation.3. When the text on the button changes when the download is complete, you need to return to the UI thread, which is mainthread, otherwise it will crash.4, when the Mthread stop, please do not use stop th

Android UI-PullToRrefresh custom pull-down refresh animation, Android UI-PullToRrefresh custom pull-down refresh Animation If you think this article is good, please vote, 2014 blog star voting address: http://vote.blog.csdn.net/blogstar2014/details? Username = wwj_748 # content This blog post will share with you how t

Android advanced UI and androiduiIntroduction There is a document on UI Optimization on the official Android website, and developers need to master it.1. Abstract Layout 2. Android styles and themes The style in android

Programming elements that need to be used Views: view, the base class for visual elements, all components, views, etc. are derived from view View group: ViewGroup, which is an extension of view, can include multiple sub-views Fragment: Similar to the previous activity fragment, has a separate layout, but needs to be bound to the activity Activity: Basic display unit for displaying the interface Layout The l

"@+id/mylist". In fact, if there is no special requirement, you can take advantage of the system-defined ID, similar to the following. Android:id= "@android: Id/list"Android:layout_width= "Fill_parent"android:layout_height= "Fill_parent"/> To reference the system ID in the XML file, simply add the "@android:" prefix. If you are using s

The four basic components of Android are Activity,service services, content provider contents providers, Broadcastreceiver broadcast receivers.First, Activity(1) In an application, an activity is usually a separate screen that shows some controls that can also listen and handle the user's events to respond.(2) Communication between activity through intent. In the description structure of intent, there are t

The less code in UI controllers (activities and fragments), the better, you should not request data yourself, but instead use ViewModel to update the data, and listen to Livedata to update the UI The UI in UI controllers is written as data-driven, which is what the UI con

Understanding the working process of the four major components from the source code perspective-Android development art exploration notes The system encapsulates the process of the four major components to a large extent, and does not need to understand the underlying working principles in daily development. So what is the significance of studying these principle

When an Android program starts running, a process is started separately. By default, all activity or service (service and activity) in this program is only two of the components that Android provides, in addition to content provider and broadcast Receiver) will run in this process.An Android program has only one proces