Android: Daily Learning Notes (8) ——— Explore UI Development (2) dialog boxDescription:A dialog box is a small window that prompts the user to make a decision or enter additional information. The dialog box does not populate the screen and is typically used for modal events that require the user to take action to continue execution.
Tips:
DialogA class is the base class for a dialog box, but
UI Effects in AndroidAndroid Classic Open source code shareThe original URL of this article
Author of 23code, Welcome to submit to author
Other UI-related URLs:
Https://github.com/Trinea/android-open-project
http://alamkanak.github.io/android-libraries-and-resources/
23code.comSwi
, if there are also rewriting, it may take some time. I don't want to do this. I guess you don't want to do it either.
I found a message online and did not have any related article. Finally, I pushed all the questions to the image. That is to say, since it is not correct, I will align according to the current alignment, and show the user only the UI, the UI just draws the image. So I don't need code to sol
There are two sets of methods to update the view in Android: invalidate and postinvalidate. The former is used in the UI thread itself, the latter is used in non-UI threads.
Android provides the invalidate method to refresh the interface, but invalidate cannot be called directly in the thread, because it violates the s
not have to do too much explanation, finally look at:When you click the "Export Excel" button to see the effect, the loding effect is automatically canceled when the server responds successfully. But careful comparison with Android ProgressDialog is not difficult to find a dynamic circular progress bar, Android ProgressDialog as a standard UI control is self-con
Method 1: (java is not recommended for android)
When I first came into contact with android Thread Programming, I used to be like java and tried to solve the problem using the following code.
New Thread (new Runnable (){Public void run (){MyView. invalidate ();}}). Start ();Functions can be implemented to refresh the UI. However, this does not work because it vio
content based on conditions. The following factors can be used to resize and load content:
L when users delete them from the home screen
L when users stretch their sizes
L changes in available space on the home screen
You can provide separate horizontal and vertical la s for widgets. When the screen direction changes, the system will adjust the widgets as appropriate. The type of the widget determines its interface details, which need to be paid attention to during design.Accessibility (auxilia
Reprint http://blog.csdn.net/dxpqxb/article/details/7987764We often see a word: The main thread of Android is threads that are unsafe. This means: The update UI can only be the main thread of the work, the child thread update UI is thread insecure, so Android non-main thread operation of the main
We have talked about Android UI design.Official tutorial on "Android UI" Design. This article will discuss the thread model of Android applications and how to use threads to process time-consuming operations, rather than executing them in the main thread to ensure smooth run
In the Android coding process, callbacks are everywhere. Start with the most common activity lifecycle callbacks, to Broadcastreceiver, service, and SQLite. Activity, Broadcastreceiver, and service the callback paths and processes of these basic components are commonly called "lifecycles." At the same time, when dealing with specific business logic, it is often designed to communicate between different threads, such as notifying the
Today the test video information client, with the new UI is the LogCat console error: Only the original thread that created a view hierarchy can touch it views. Search on the Internet only to find that the original Android related view and control is not thread-safe, we have to do a separate processing. So here again the handler is used to operate the class. It was here that I realized that I had already us
fragment, and multiple fragment can be used to display information on a larger screen, such as a Nexus 7. Such as:Figure AFigure one, in the large screen two fragment display in a screen, but the handheld device, need two screens display, one screen can only show one, they need to guide each other.The Fragmentmanager class provides methods that allow you to add, delete, and replace fragment while the activity is running to create a flexible, dynamic experience.Add fragment to a running activity
Android UI layout: FrameLayout and androidframelayoutA FrameLayout object is like a blank area on the screen, which can be filled with elements, such as an image. Note that all elements are placed in the leftmost area of the FrameLayout area. In addition, you cannot specify an exact location for these elements. If a FrameLayout contains multiple child elements, the display of the child elements will overlap
Address of this article: http://blog.csdn.net/csheng1204/article/details/7233910 reprint please note, thank you ~~
In fact, there are quite a lot of such examples on the Internet, but I 'd like to write it myself. It should be a review method.
For more information about how to use listactivity, see:
Listactivity usage and setemptyview of listview
The following adapter has static class viewholder, which means that the getview method runs in the
[Android UI design and development] 3. Guiding interface (3) implementing the Guiding interface of an application only once, androidui
Most of the boot interfaces are basically the same. As long as you are familiar with one, there is basically nothing to say. To achieve this effect, you only need to start the boot interface once, as long as you use the SharedPreferences class, it will make the program very
introduction of vector diagramRecently, I learned about the concept of vector graph (vectordrawable) when I was "slimming" in the Android App.Starting with Android5.0 (API level 21), there are two classes that support vector diagrams: vectordrawable and Animatedvectordrawable. Vectordrawable is a vector graph that defines points, lines, and curves in an XML file, and a collection of information about their associated colors. Animatedvectordrawable is
display the most commonly used characters. Common types include numbers, text, email addresses, phone numbers, personal names, usernames, URLs, street addresses, credit card numbers, PIN codes, and search queries.Light theme:Prompt and input font: Roboto Regular spInput frame Height: DPTop and bottom padding of text: DPText field delimited padding: 8 dpLight theme with icons:Prompt and input font: Roboto Regular spInput frame Height: DPTop and bottom padding of text: DPText field delimited padd
; intent-filter> action android:name="Android.intent.action.MAIN" /> category android:name="Android.intent.category.LAUNCHER" /> intent-filter> activity> activity android:name=". Mainactivity "/> Application>manifest>The first time I made a mistake when I was storing a picture in a remote, I encountered a very interesting question:Later found that the error is due to use intent transfer pictures, size ca
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