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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

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

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

); // StyleSpprovince. setadapter (provinceadapter );Spprovince. setonitemselectedlistener (itemselectedlistener );} Catch (exception e ){Log. D ("winestock", "initialprovince:" + E. getmessage ());}} String selectedprovince = ""; // province selected in the drop-down list// Save the drop-down box eventPrivate onitemselectedlistener itemselectedlistener = new onitemselectedlistener (){@ OverridePublic void onitemselected (adapterview Int position, lon

The project implements the following functions :Get Mobile album, click on each album to enter the picture list of the album interface, in the Picture list interface can achieve multiple selection of pictures, and then into the selected image interface, in this interface can achieve the selected image upload and other functions.the biggest feature of the project:1, to obtain a

Use SimpleAdapter in Android-custom list, custom simpleadapter I am a beginner in Android. Today I have found the Adapter interesting. I wrote a custom list for testing. First, create a layout file. You can set the layout by yourself. Paste my custom Layout file code below 1 The code above is as follows, which uses

program extension to shrink in the status bar, the Android development net hint should be a similar tray program in Windows Mobile (allows an application to expand or collapse the status bar.)Android.permission.FACTORY_TESTAs a factory test program, run on the root user (run as a manufacturer test application, running as the root users.)Android.permission.FLASHLIGHTAccess Flash, Android dev net tips htc Dr

Layer-list, which is often used in the Android UI design, is critical to shape's role in beautifying the controls. Shape Role: Defining Geometry in XML Property: XML version= "1.0" encoding= "Utf-8"?> Shapexmlns:android= "Http://schemas.android.com/apk/res/android"Android:shape=["Rectangle"| "Oval" | "Line" | "Ring"]>

The example in this article describes the control usage of the Android implementation, which displays a semi-transparent small form effect in list lists. Share to everyone for your reference, specific as follows: Android controls that show translucent small form effects in list lists, much less directly on the code, a

Android listview + checkbox list sliding up or down causes loss of check box status solution, androidlistview I used to have a headache for this problem for a long time. I am busy with other things. I haven't sorted it out all the time. Today I am not so busy. Let's take a look at the problem of listview + checkbox. Interface: Listview_cell: The interface is very simple. A full screen listview, cell is v

An example is provided to summarize the basic usage of ListView. 1. Create a project: ListViewDemo. 2. Code in main. xml. [Html]Android: layout_width = "fill_parent"Android: layout_height = "fill_parent"Android: orientation = "vertical">Android: layout_width = "fill_parent"Android