Android learning route (20) using Fragment to build a dynamic UI and androidfragment
To create a dynamic or multi-panel user interface on the Android system, you need to encapsulate the UI components and activity behavior into modules, it allows you to flexibly switch between display and hide in your activity. You can
The following describes how to implement the effects of a splash screen. First, the custom class inherits from the View and then the onDraw method is rewritten. Previously, the onDraw method can be used for plotting, but only once, how can we implement a loop. It is easy to think of using the invalidate () method, because using this method will call the onDraw method, which forms an endless loop and keeps refreshing the drawing interface. Of course there is anotherPostInvalidate (). method, whic
Android UI component (2)-Windows-like dialog box
Android UI component (2)-Windows-like dialog box
Before starting this chapter, I would like to wish you a happy Mid-Autumn Festival. I believe that many of my friends at work will be given three days off!
If you have time, go home and accompany your parents! The tree is
Android learning history UI ----- imageView: rotating and scaling Images
I feel it will be nice to write and parse in the code. I will directly use the method used for parsing in the program code.
MainActivity:
Package com. example. imageview_demo03; import android. support. v7.app. actionBarActivity; import android.
special attributes and Methods. Here we only introduce some commonly used attributes, for details, see the official documentation:
Android: completionHint/setCompletionHint (CharSequence): sets the title of the prompt displayed in the drop-down list.Android: completionTjreshold/setThreshold (int): set to enter at least a few characters to display the prompt.Android: dropDownHeight/setDropHeight (int): sets the height of the drop-down list.Android: dr
Dear Netizen, I have a set of courses here to share with you, assuming that the course is interested, can add my QQ2059055336 and I contact. Course Content Brief Introduction Our software is based on mobile devices. So we have to choose Android as our development tool. In the course, we will briefly introduce the basic concepts of Android , and then carry out our actual development. In the development, we t
Android's official developer blog posted a slide to introduce some tips on Android UI design. Roger came out here in the form of a picture, if you are interested, continue to the next step. The entire PPT is divided into five parts. Part I translates the first two parts.
As a developer, why do we need to care about the UI? A bunch of previous connections
MessageQueue, and then looper out, sent to handler call display, sub-threading because there is no looper, So we need to add looper.prepare and Looper.loop to create a looper, but in essence, this is still called on the child thread, so it will be an error!So why does Android require the view to be changed only in the main thread of the UI? This is about Android's single-threaded model, because the resulti
Android, for time-consuming operations to be placed in sub-threads, otherwise it will rest their lives anr, this time we will learn how the Android multi-threaded update UI.First, let's Meet the ANR: ANR: Application not reponse: application unresponsive main thread: UI thread the cause of the ANR : The main thread needs to do a lot of important things, respon
Android recommends using an XML file to set the UI interface and then control the logical part with Java Code, which shows MVC thought. The full name of MVC is the model view Controller, which is models -Views (view) -Controller (Controller) abbreviation, a software design paradigm that organizes code with a separate approach to business logic, data, and interfaces, and aggregates business logic into a sin
, some UI in one screen configuration in the form of a panel, and in other configurations, but also with independent activity appears.In such a case, you can avoid code redundancy by reusing fragment. For example, Articlefragment is used for multi-panel situations:linearlayout xmlns:android="Http://schemas.android.com/apk/res/android" Android:layout_width="Fill_parent"android:layout_height="Fill_parent" A
The Android platform provides a wide range of UI visual components---widgets that combine these small visual artifacts to provide users with a complex and useful interface. However, applications often require advanced visual components to meet such requirements, and for efficient purposes, some standard widgets can be combined into a new reusable component.
For example, it contains a progress bar and a Can
This article describes the most popular open source code in Android developers, which can be applied directly to the project.FilebrowserviewA powerful file selection control. The interface is pretty and easy to use. Features: Can customize the UI, support copy, cut, delete, move files, can be used in fragment, Ativity, dialogfragment, support quickly switch directories.Http://jcodecraeer.com/a/opensource/20
The following are simple:Now use the fragment to implement a simple dynamic UI, click the title of the left title bar, and then the left body bar to display the corresponding article1. Add two fragment in the Activity_main.xml layout.One corresponding to the left of the title bar, a corresponding to the right of the body barlinearlayout xmlns:android="Http://schemas.android.com/apk/res/android" Android:id=
There are often problems with Android projects that update the UI after a time-consuming operation in a child thread, and then summarize the updated methods for some of the projects that you have experienced:Method One: With handler1, the main thread defined handler:Handler Mhandler = new Handler () {@Overridepublic void Handlemessage (Message msg) {super.handlemessage (msg); switch ( Msg.what) {Case 0://co
the current UI Structure View :
We can clearly see the presence of two framelayout nodes, it is obvious that these two completely identical nodes caused the waste of resources (here can be reminded that in the development of the project can be customary through hierarchyviewer to view the current UI resource allocation), So how do you solve this problem (how do you get rid of redundant framelayout nod
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
Effect of Android UI view-imitation QQ friends list group floating PinnedHeaderExpandableListView
I tested it on a tablet. The picture is a little big. You can check the effect.
Next, paste the source code:
PinnedHeaderExpandableListView. java
Note that in the onGroupClick method, the function of the Code parent. setSelectedGroup (groupPosition) is to click the group top,
I don't need this effect on th
AndroidSDK cannot be found during Unity compilation | Unable to list target platforms (reprinted), unityengine. ui cannot be foundOriginal article: http://www.jianshu.com/p/fe4c334ee9fesymptom
When compiling Android applications with Unity, you may encounter the problem of Unable to list target platforms.
Error Message
Detailed error description:
Error:Invalid command androidUnityEditor.BuildPlayerWindow:Bu
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
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