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Android allows you to expand or contract a list control.

Recently I was working on an Rss reader. I saw that lisView in another reader can be scaled and expanded, and I searched the internet. Let me find it. Here is a small example. ActivityMain. java Package com. android; Import android. app. ExpandableListActivity;Import android. OS. Bundle;Import android. view. ContextM

Android Puzzle------------A ListView that contains button buttons, the list item cannot get focus

cannot be triggered.So here's how it's solved:Such as:Android:focusable= "false"When the button's Focusable property is set to False, the control is no longer able to get the focus, so naturally it is not possible to block out the ItemClick event of the ListView.Personally, Method 2 and Method 1 have a certain similarity, all in the ListView in the item gets the focus, thereby triggering the ItemClick event. If there are any different views, please leave a message and a small series of discussi

Android uses-permission permission list Chinese annotation version _android

Android also limits the use of system resources, such as network devices, SD cards, recording devices, and so on. If your application wants to use any system resources, we have to apply for Android permissions. This is the role of A permission usually has the following format, with a string named Name to guide the permissions we want to use. Copy Code code as follows: For example, to obta

Android Rxjava Operator List

subscription can only receive data that is emitted later. ConnectThe Connect operator is used to trigger connectable observable emission data.After applying the Connect operator, a subscription object is returned, and through this subscription object, we can invoke its Unsubscribe method to terminate the transmission of the data.In addition, the Connect operator can be used to start transmitting data if there is no subscriber subscription. RefCountThe refcount operator converts a connec

A simple list application in Android

I thought using list in Android should be a simple task, but -- I am wrong! I have been reading books, followed by book examples.ProgramI learned to write a list, but I still have no skills. Today, I suddenly saw a video tutorial, and I felt a little confused. This video tutorial is www.mars-droid.com, beginners can download learning, or very good, painted color!

Use expandablelistview in Android to implement Layer 2 and Layer 3 list source code

. Parent = Parent [I]; For ( Int J = 0; j ) {Treeviewadapter. treenode Node = New Treeviewadapter. treenode (); node. Parent = Child_grandchild [J] [0] [0 ]; For ( Int K = 0; k ) {Node. Childs. Add (child_grandchild [J] [ 1 ] [K]);} Supernode. Childs. Add (node);} supernodetree. Add (Supernode);} superadapter. updatetreenode (supernodetree); expandablelistview. setadapter (superadapter ); Main. xml Linearlayout Android: ID = "@ + ID/linearlay

Android Learning Series (11)-drag and drop the App list listview (bottom)

Next, let's move to the android Learning Series (10) -- drag the App list listview (top). We will continue to implement the drag-and-drop effect of listview. 7. Override the ontouchevent () method.In this method, we mainly deal with dragging and dropping.Drag: the image of the selected item slides with the finger; put down is to exchange data when the drag ends.The overall structure of the method is as fo

Android sdkversion parameter list

Http://developer.android.com/guide/topics/manifest/uses-sdk-element.html Platform Version API Level Version_code Notes Android 4.4 19 KITKAT Platform Highlights Android 4.3 18 JELLY_BEAN_MR2 Platform Highlights Android 4.2, 4.2.2 17 JELLY_BEAN_MR1 P

Android SDK Manager cannot obtain the SDK list.

Android SDK Manager cannot obtain the SDK list. 1. Open the running Android SDK Manager, Tool menu, select Options, open the settings menu, check the "Force https://...sources to be fetched using http ://... ", and click Close to Close, for example: 2. Set the hostes file to access the Google download center on the computer. Open the C: \ Windows \ System32 \ dri

Batch loading of Android data-slide to the bottom to automatically load the list

Batch loading of Android data-slide to the bottom to automatically load the list May 9, 2014 This blog post describes how to load data in batches. ListView is often used in application development. It is often easy to click more to load data. To provide a user experience, when a user rolls the list to the bottom and automatically loads data, this method is used

Android Open Source project list "continuous finishing ... 】

as VoIP) software on the Android platform, Sipdroid supports almost all SIP accounts, and through sipdroid we can choose to call through traditional phones, Or make a call through a cheap (free) VoIP phone. Android-rss: An open source, RSS-resolved Android Project Summary from the following blog postHttp://blog.tisa7.com/android_open_source_projectshttp://blo

Effect of Android UI view-imitation QQ friends list group floating PinnedHeaderExpandableListView

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

Android quick index (City list and contacts)

Android quick index (City list and contacts) You need to quickly index a city list. Similar to a contact application, the quick indexing function is based on the first letter of the name.To implement this function, you only need to solve two problems: 1. Grouping the list (

ListView for android (list)

There are several ways to display the list effect on the android interface: Method 1: Inherit from ListActivity. The key code for using Listadapter is as follows: private ListAdapter mListAdapter;private List ListAdapter code: Package org. anjoy. act; import java. util. list; import java. util. map; import

Android SDK cannot be found during Unity compilation | Unable to list target platforms, unityengine. ui cannot be found

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 co

(Updated version) Android Videoplayer in scrolling list for item video playback (ListView control and Recyclerview)

Since writing this article when hanging ladder, come back to find no pictures sorry everyone ..... Now I've changed!2016.5.27 15 o'clock Yin at BJ Reprint please indicate source: Dung 乧 http://blog.csdn.net/wooder111/article/details/51513582 Original translation: Click to jumpIn this article, I'll show you how to implement video playback in a list. In popular applications, such as Facebook,instagram or Magisto works the same:Facebook's:M

Android XMl parsing magic xstream 6: converting the set list into XML documents, androidxstream

Android XMl parsing magic xstream 6: converting the set list into XML documents, androidxstream For more information about xstream, see: Android XMl parsing magic xstream 1: parse the aa. xml file in the asset folder of the android Project Android XMl parsing magic xstream 2

Android scalable list listview (expandablelistview)

QQ chat is used every day. Today, I suddenly think, how does Android implement list grouping? I looked at the API and found that its implementation process is also very simple. Let's take a look at the final result first! 1. First, create our activity and inherit from Android. App. expandablelistactivity. Read the Code directly. Package COM. ideasandroid. sampl

Troubleshoot Android Studio under element Layer-list must be declared issues

Recently transferred a project from Eclipse to Android Studio.The project uses some XML resources in the ring-letter demo, and after the conversion, it is found that the label of the color resource directory such as layer-list or shape, element XXX must be declared error, The main idea is that layer-list or shape these tags are undefined.These tags, such as layer

Use the listview control in Android to display the data in the list set and select the event for the item response (method 1)

Item. xml Scorelist. xml Android: layout_width = "fill_parent"Android: layout_height = "fill_parent"Xmlns: Android = "http://schemas.android.com/apk/res/android">Android: Id = "@ + ID/listlinearlayout"Android: Orientation = "hor

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