This example describes the use of key-value pairs for spinner controls in Android. Share to everyone for your reference. Specifically as follows:
A dictionary table for storing key-value pairs of information
Package com.ljq.activity;
Import java.io.Serializable;
@SuppressWarnings ("Serial") Public
class Dict implements Serializable {
private Integer ID;
private String text;
Public Dict () {
} public
Dict (Integer ID, String text) {
sup
) The last parameter is the data you want to add to the drop-down list, which can be a static String array or a dynamic list2.adapterview.setonitemselectedlistener (Onitemselectedlistener Listener), use this method to set the listener for the spinner object. Here the parameter is the Onitemselectedlistener interface, implementation of this interface requires rewriting two methods:(1) public void onitemselected (adapterviewint position, long ID)This me
Android-Spinner [implemented using C # And Java],The effect is as follows:
C # implementation code
Using Android. app; using Android. OS; using Android. widget; namespace SpinnerDemo {[Activity (Label = "@ string/ApplicationName", MainLauncher = true, Icon = "@ drawable/icon")] public class MainActivity: activity {private Spinner _ citySpinner; private TextView _ cityNameView; private ArrayAdapter Java impl
Spinner generally binds an array of strings, such as the previous practice arrayadapterThis, R.array.fruit, Android. R.layout.simple_spinner_item); sometimes we need to bind an object, such as display, to display value, but the program needs to get the key value, which is when we need to bind the custom object. Test Scenario: Document Type drop-down box, display to the user to see the ID card, passport, hukou and so on text, but we need to record the
Android: Use of the Spinner (drop-down box) control.
1.
2.Create a page file(Main. xml)
1
3.Create a data source from the drop-down list
1 List
4.Create an adapter(The data source in the drop-down list is from the adapter.)
ArrayAdapter
5.Add a style for the adapter
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
The system provides the following styles:
LSimple_spinner_dropdown_item (List-relatively high spacing)
This is mainly implemented here. The second-level association between provinces and cities. Select a province. Level 2 corresponds to all cities in the province
See the code below;1. Activity@ OverrideProtected void oncreate (bundle savedinstancestate ){// Todo auto-generated method stubSuper. oncreate (savedinstancestate );Setcontentview (R. layout. test_layout );This. mcontext = this;Map Provincelist = data. Get (1 );Provincedata = data. Get (0 );Arrayadapter provinceadapter = new arrayadapte
Today needs to change a actionbar on the spinner font color, the results have not been solved for a long time, and finally found that he is in the code to add a TextView, and then use adapter loaded, not directly under the framework of the layout. Now summarize the use of spinner, see the following code directly1) First, you need to have a spinneradapter to load the data with
This is mainly implemented here. The second-level association between provinces and cities. Select a province. Level 2 corresponds to all cities in the province
See the code below;1. activity@ OverrideProtected void onCreate (Bundle savedInstanceState ){// TODO Auto-generated method stubSuper. onCreate (savedInstanceState );SetContentView (R. layout. test_layout );This. mContext = this;Map ProvinceList = data. get (1 );ProvinceData = data. get (0 );ArrayAdapter provinceAdapter = new ArrayAdapter
This example describes the spinner component usage of Android programming. Share to everyone for your reference, specific as follows:
The spinner component group uses an adapter adapter to display a Drop-down list, and the following is an example of how the component is used
The first is the layout file Main.xml:
Because Simpadapter is used, the layout of the item to be written is as follows
This article for you to share the Android custom spinner adapter's related knowledge point, for everybody's reference, the specific content is as follows
First, the general effect
Two. Key code
Let's focus on the comments.(1) Spinner layout: car_brand_spinner.xmlThat is to bounce out of the layout of the Drop-down list, the back of that layout will not take out a disgrace, anyway know that there is a
Extended from $.fn.spinner.defaults, rewrite defaults with $.fn.timespinner.defaults.
Depend on
Spinner
Usage
Copy Code code as follows:
Copy Code code as follows:
$ (' #ss '). Timespinner ({
Showseconds:true
});
attribute !--? Xml:namespace PREFIX = O/-->
its features extend from spinner , the following is for timespinner added
) 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
There are many kinds of Android controls, one of which is a spinner control, which is actually a drop-down display list. The spinner is located under the Android.widget package, displaying only the elements selected by the user each time, and when the user clicks again, the selection list is ejected for the user to select, and the elements from the selection list are also from the adapter.
I am troubled by work problems, so I have not written any blogs for the past few days.
Recently, I felt I was lazy. As a programmer, we had to keep learning when we were charging, so we couldn't leave ourselves alone.
Let's take a look at the use of the Spinner control in the drop-down box.
Step 1: Create a project Ep. Spinner, and use the default values for the rest.
Step 2: edit the view to place a
Reprinted from: http://blog.csdn.net/android_tutor/article/details/5707835
Hello everyone! Today, I want to explain how to use baseadapter (Basic adapter). The adapter is mainly used to fill data for (such as spinner, listview, and gridview. While (spinner, listview, and gridview) all have their own adapters (difficult to remember ). However, baseadapter is common to them. Why? First, let's take a look at
Recently doing a project for Android Spinner use, here is a simple example to test how to use.
Spinner
is a drop-down list, drag a spinner control into the Android interface and set android:entries= "@array/spinner_data" in the propertyWhere Spinner_data is the array set in string. The value in the array that is written by the fix. At this point, you can set th
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