I wanted to write this article last night, but my school's network is really bad! This page cannot be opened !!!Let's talk about the text:Program Background: to use TabHost, you need to add the Spinner button in the subinterface.Q: You cannot click the "Spinner" button. The "unable to add window... is your activity running" button displayed? .Exploration:After you click the
Spinner provides a quick way to select values from the collection. By default, a spinner displays the values that are currently selected. Touch Spinner displays a drop-down menu from which the user can select a value. Today we begin to spinner study.The project structure is as follows:Define a
Hello everyone, let's take a look at the drop-down menu spinner under android in this section, just like the swing ComboBox and HTML
The drop-down menu of the spinner widget provided by Android is very easy to use and the style is also applicable. however, the focus of the demo in this section is to customize the style in the drop-down menu. The key is to call the setdropdownviewresource method to define
Hello everyone, let's take a look at the drop-down menu spinner under android in this section, just like the swing ComboBox and HTML
The drop-down menu of the spinner widget provided by Android is very easy to use and the style is also applicable. however, the focus of the demo in this section is to customize the style in the drop-down menu. The key is to call the setdropdownviewresource method to de
Category: C #, Android, VS2015;Date Created: 2016-02-07The use of the drop-down list box spinner is very similar to the usage of the ComboBox in the WinForms, and the usage frequency is quite high in Android applications, so you must be familiar with its basic usage.It is generally possible to declare a drop-down list option in a separate XML, which is more versatile.Example 5-demo05spinner1. Operation 2. Add Demo05_spinner.axml FileAdd the file under
1. First we need to know the spinner system comes with font and color essence:Native spring controls are unable to change fonts and colors ...As you can see from the code below ... The red callout shows the default layout for Android.1Spinner S1 =(Spinner) Findviewbyid (r.id.spinner1);2arrayadapterArrayadapter.createfromresource (3 This, R.array.colors, Android. R.layout.simple_spinner_item
In Android, there are two common methods to load data for the Spinner component:I. Program to load list data:First, add the spinner component to the layout file main. xml. The Code is as follows:Android: orientation = "vertical"Android: layout_width = "fill_parent"Android: layout_height = "fill_parent">Android: layout_width = "fill_parent"Android: layout_height = "wrap_content"Android: text = "Spinner_1"/>A
Provincial urban three-level linkage, using the SQLite local database, you need to use the Simplecursoradapter class to cooperate with the Drop-down list spinner implementation. For a combination of spinner and simplecursoradapter, see,
Android uses Simplecursoradapter to populate the Drop-down list spinner usage
Put the sp
Typically, if the list item that you want to display in the list selection box is known, you can save it in an array resource file, and then specify the list item for the list selection box by using an array resource. This allows you to implement a drop-down selection box without writing Java code.1. Add a Where the Android:entries property is used to specify the list item, if the property is not specified in the layout file, it can be specified in the Java code by specifying an adapter for it;2
First, add a spinner control to the XMLThen add a spinner item to the XML, which sets the effect of each column, the name is called: Spitem.xmlFinally, load the spinner in the codeimportandroid.app.activity;importandroid.os.bundle;import android.widget.ArrayAdapter;importandroid.widget.Spinner;publicclassMainActivity extendsactivity{spinnerspinner; @Overrideprote
Preface
You need to set the default options after adapting the data to the spinner. However, it is found that the setselection (INT position) option is selected when it is enabled, however, the displayed option is always the first one by default.Article1.
Article
1. Using spinner. setselection finding the spinner doesn't show the selected item when clos
I followed the previous article. This time, the goblin told me not to use the RadioButton control. It's hard to see it, but it still occupies a place. It takes up four places to catch a person, then I only need to take a place to catch a person, so I used the Spinner control to catch one at a time.
Main. xml is as follows
View plainAndroid: orientation = "vertical" android: layout_width = "fill_parent"Android: layout_height = "fill_parent">Android: la
Learning notes for Android: Use Cases in the Spinner drop-down list
(1) Two methods are used to extract the data source from the Spinner: using the list set or configuring through the xml file
(2) The layout code is as follows:
(2)
Package com. example. spinners; import java. util. arrayList; import java. util. list; import android. app. activity; import android.
For mobile phones and tablet applications, typing is a very inconvenient way to operate, and a better way to do this is to list a set of options for the user to choose from, thus avoiding the hassle of typing. Use the Spinner drop-down menu component to complete the following steps:1. Create a list of options, with many project names in the options list, which are represented by arrays;2. Set the option list to a
) findviewbyid (R. Id. checkbox08 ),
(Checkbox) findviewbyid (R. Id. checkbox09)
};
For (final checkbox: checkboxes ){
Checkbox. setoncheckedchangelistener (New oncheckedchangelistener (){
@ Override
PublicVoid oncheckedchanged (compoundbutton buttonview,Boolean ischecked ){
Textview. settext ("You have chose" + checkbox. gettext () + ".");
}
});
}
Checkbox01 and checkbox09 are all defined in the layout file. Create an event listener for each checkbox through a loop body. In this way, the textv
Development of android control using a Spinner ControlDevelopment of android control using a Spinner ControlOverview: In android, the Spinner control is mainly used to display the drop-down list. You can also select the data in the list as the current selection.Java code:This Code uses two methods to provide data (method 1 and method 2) to the
Reprint Please specify source: http://blog.csdn.net/crazy1235/article/details/70903974Set Spinner Text CenterBy default, the effect of the spinner control is this:
What do I do if I want to center text???
Set in the layout fileandroid:gravity="center"It doesn't work!!Source of the daytimeFirst look at the Spinner constructor Public
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.