Now, let's talk about the use of the single-choice button RadioButton control.
Although a single sequence is not as common as multiple selection boxes, it is still required in many cases.
Now let's take a look at how it works.
Step 1: Create a project Ep. Radio without renaming the view and activity.
Step 2: design the view in a simple way (after the previous study, I believe that you know which file the view refers to. That's right, activity_main.xml
Detailed use of Android custom ToolBar
Customize the ToolBar in xml, extend the options through the menu file, and use
1. ToolBar Layout
Xmlns: app = "http://schemas.android.com/apk/res-auto"Android: id = "@ + id/toolbar"Android: layout_width = "match_parent"
Nowadays, many Android applications will guide how to use some features of the application after the first installation, which will provide a good user experience, it can help users better use certain functions of applications. In fact, this function has the same effect as the luncher function on the main Android inter
projects can sometimes help you achieve a multiplier effect. To this end, CSDN has compiled the most popular Android and iOS open source projects on GitHub, and this article details 20 Android Open source projects.There is no need to say much about GitHub's popularity in China, and more and more open source projects are migrating to the GitHub platform. Moreover, based on the principle of not repeating whe
GitHub's popularity in China does not need to be repeated. More and more open-source projects are migrated to the GitHub platform. What's more, it is necessary to understand the popular open-source Android and iOS projects based on the principle of not repeating the wheel. Using these projects can sometimes help you get twice the result with half the effort. To this end, CSDN has compiled the most popular open-source
2010-06-07Android TabWidget/TabHost usage
Article category: Java programmingAndroid TabWidget/TabHost can be used in either of the following ways:
First, use the built-in TabHost (and inherit from the TabActivity class) Code as follows:Java code
Bytes
Android: layout_width = "fill_parent"
Android: layout_height = "fill_parent">
I am troubled by work problems, so I have not written any blogs for the past few days.
Recently, I felt I was lazy. As a programmer, we had to keep learning when we were charging, so we couldn't leave ourselves alone.
Let's take a look at the use of the Spinner control in the drop-down box.
Step 1: Create a project Ep. Spinner, and use the default values for the rest.
Step 2: edit the view to place a Spinne
The most comprehensive use of Android studio tutorialsAndroid Studio is an IDE (integrated development environment) that has not been available for a long time, and is now being distributed free of charge to Google and Android developers. Android Studio is based on IntelliJ idea, which is also a pretty good set of
The following error occurred using the Android Studio Packaging application:Note: Some of the input files use or overwrite outdated APIs.Note: For more information, please recompile using-xlint:deprecation.Note: Some input files use an unchecked or unsafe operation.Note: For more information, please recompile using-xlint:unchecked.After compiling to tell me this
1. Use the
If you need to use the same layout design in a project, you can use the
[XHTML: showcolumns]View plaincopy
··· · 50 ······· · 90 ····· · 140 · 150
Android: Id = "@ + ID/workspace"
Android: layout_width = "fill_parent"
More and more mobile phones are equipped with auto-focus shooting functions, which also means these mobile phones can have bar code scanning functions ....... the mobile phone has the bar code scanning function, which can optimize the shopping process and quickly store e-business cards (QR codes.
This article uses ZXing 1.6 for bar code/QR code recognition. ZXing is a very classic bar code/QR code recognition open source class library, long ago, there are developers on the
The Android Development Platform is an open platform. application development at the top of the layer-4 framework will inevitably involve Android components. This article will introduce the Android components in detail.
Component (Component) is an important thing when talking about the so-called architecture and reuse. In many cases, component-based software arch
How to use custom fonts in Android Development
1. The Android system supports three fonts by default: "sans", "serif", and "monospace ".
2. Other fonts can be introduced in Android.
Android: layout_width = "fill_parent"
Android: l
Framelayout is the frame layout, which can be used to overlay several controls. You can use Framelayout and textview to achieve a simple neon effect.
Package org. crazyit. framelayout;Import java. util. Timer;Import java. util. TimerTask;Import android. app. Activity;Import android. OS. Bundle;Import android. OS. Handl
ProgressBar when Android is used to display the progress of the component. When performing a more time-consuming operation (such as IO operations, network operations, etc.), to avoid the user experience being reduced by the lack of changes to the interface, a progress bar is provided to let the user know that the program is still running.First, ProgressBar has the following several common styles1. The default progress bar style is circled (for medium-
view, Binder performance is second only to shared memory.(2) from the point of view of stabilityBinder is based on the C/S architecture, a simple explanation under the C/S architecture, refers to the client (clients) and service (Server) composed of the architecture, what the client needs, directly sent to the Server side to complete, the structure is clear, Server side and client side is relatively independent, the stability is good, and the shared memory implementation is complex, there is no
There are two ways to implement the tab View in android. One is to define the Use of the Tab
First, design the page layout.
After the paging design is complete, use the code to create
Tab
Tab, and add
Logo and title
Finally, determine the page layout displayed on each page.Create a "TabDemo" program, which contains three XML files: tab1.xml, tab2.xml, and tab3.xm
Reprinted from: http://blog.csdn.net/android_tutor/article/details/5707835
Hello everyone! Today, I want to explain how to use baseadapter (Basic adapter). The adapter is mainly used to fill data for (such as spinner, listview, and gridview. While (spinner, listview, and gridview) all have their own adapters (difficult to remember ). However, baseadapter is common to them. Why? First, let's take a look at the API documentation:
We can see that basea
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