The list items for the Spinner drop-down list box are configured in two ways:1. Through the resource file configuration, the list item content is added by using the 2. Read the resource file through the Android.widget.ArrayAdapter class or specify the specific settings data.One: How the resource files are configured.XML version= "1.0" encoding= "Utf-8"?>Resources> stringname= "App_name">ADTeststring> stringname= "Hello_world">Hello world!string>
This article was written based on your understanding after reading the instructor's teaching video. Therefore, some of the content is referenced in the video.
PS: we strongly recommend that you read a video from a friend who is new to Android.
Body:
The spinner control is like the drop-down menu of our computer. However, because the display range of the mobile phone screen is limited, a menu similar to the dialog box is displayed. For example:
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This example describes the use of the Android spinner menu. Share to everyone for your reference, specific as follows:
One, using arrays as data sources
1. In the layout layout file: Declare a TextView control and a spinner control with the following code
2. Add the following code to the activity file
Import android.app.Activity;
Import Android.os.Bundle;
Import Android.view.View;
Impor
Today, I learned the use of spinner components, a very useful component, the equivalent from the Drop-down list to select items, today a lot of harvest, the following to show you the use of spinner (respectively using Arrayadapter and custom adapter implementation), the specific contents are as follows.
(i): Use of Arrayadapter for data adaptation:
①: First define a layout file:
"Note:" The
Android drop-down menu, such as
1.1.activity_main.xml
Spinner is the component of the Drop-down list
1.2.mainactivity.class
public class Mainactivity extends Appcompatactivity {private Spinner s;
String[] data=new string[]{"Apple", "Sydney", "watermelon", "Grape", "orange", "Strawberry"};
Private TextView TV;
@Override protected void OnCreate (Bundle savedinstancestate) {super.
Spinner Drop-down List
Diagram corresponding to this layout:
Common Properties: Android:entries (Specifies the string resource spinner to display.) Must be a string resource defined in the Strings resource file Android:spinnermode (Spinner mode, enumerated value has two Values dialog Bullet window display and dropdown dropdown display) Android: DropDownWidth (t
This example describes the spinner usage of the Android control. Share to everyone for your reference. Specifically as follows:
Use of the following emulated Drop-down lists
Layout file:
Spinneractivity class:
Package com.ljq.sp;
Import android.app.Activity;
Import Android.os.Bundle;
Import Android.util.Log;
Import Android.view.View;
Import Android.view.ViewGroup;
Import Android.widget.AdapterView;
Import Android.widget.BaseAdapte
The spinner style that comes with the Android system is far from satisfying the spinner UI style requirements in our actual development process, so we definitely need to modify our spinner style to suit the style of the application. The system gives us two kinds of common modification methods, one is to use the XML static, the other is the Java code dynamic to mo
============ Problem Description ============The first post, mainly I today in order to achieve a good view of the drop-down list, on the internet to find a day about spinner information, did not see good posts. Try a variety of methods, always find how to set the background of the dropdown box method, if please give me a message, thank you.Finally, in the great teacher's advice, I decided to change the direction to consider using his popupwindow, so
Tags: blog http OS SP data on 2014 problem log =============== Problem description ==================== The two spinner (storefront-shelf) are associated with each other. The data is obtained from WebService, and the store is selected to obtain the corresponding shelf number. The code can only run correctly once during initialization, the following warning error (API 17) is returned when you select the item of the storefront's
Use spinner and setdropdownviewresource
Exercise 2: jointly use the spinner and setdropdownviewresource
Setdropdownviewresource of the adapter allows you to set the display mode of the drop-down menu, define the XML in the Res/layout directory, and set textview in the drop-down menu, for exampleProgramIn "R. layout. myspinner_dropdown" is the custom drop-down menu textview style. In addition to changing
In today's mobile phone field, smartphones are the most popular. So how can we choose an excellent mobile phone system to meet our needs? Here, you can take a look at the Android system as a reference for your convenience. The content introduced today is about some basic concepts of Android Spinner.
● Set the Adapter and call the setAdapter () method.
● Append the Item selection time, call the setOnItemSelectedListener () method, and pass the AdapterV
As you can see from the previous lessons, ListView is used to display a long list of information while filling the entire screen (listactivity). But sometimes, you might want to have other similar views, so you don't have to fill up the entire screen. In this case, you should use the spinner control. Spinner displays one message in the list at a time, and it allows the user to choose.
The following shows h
In the development we often encounter similar spinner cascading menu effect, the following is the implementation of spinner cascading menu effectActivity_main.xml123Android:layout_width= "Fill_parent"4android:layout_height= "Fill_parent"5android:orientation= "Vertical" >6 7LinearLayout8Android:layout_width= "Fill_parent"9android:layout_height= "Wrap_content"Tenandroid:orientation= "Horizontal" > One A - -
Android gives us a spinner control, which is basically a list, so let's say this control, this control has been seen in the past, but this is still a new introduction again. Spinner is located under the Android.widget package, displaying only the user-selected element at a time, and when the user taps again, a selection list pops up for the user to select, and the elements from the selection list are also f
Tonight I saw the next spinner. The use of the control, combined with the blog of the Great God Tutorial, a small demoOne, spinneractivity PrivateSpinner Spinner; PrivateArrayadapteradapter; PrivateListlist; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate); Setcontentview (R.layout.activity_spinner); List=NewArraylist();
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