Android learning notes: AutoCompleteTextView auto-filling case, android auto-Filling

Android learning notes: AutoCompleteTextView auto-filling case, android auto-Filling

(1) There are two methods to implement the AutoCompleteTextView function: one is manually configured, another summary is the data made through the xml file (of course, it can also be obtained through online resources)

Here we only talk about the first two types!

(2) The layout Page code is the same as below:

<RelativeLayout xmlns: android = "http://schemas.android.com/apk/res/android" xmlns: tools = "http://schemas.android.com/tools" android: layout_width = "match_parent" android: layout_height = "match_parent" android: paddingBottom = "@ dimen/activity_vertical_margin" android: paddingLeft = "@ dimen/plugin" android: paddingRight = "@ dimen/plugin" android: paddingTop = "@ dimen/plugin" tools: context = ". mainActivity "> <TextView android: id =" @ + id/textView1 "android: layout_width =" wrap_content "android: layout_height =" wrap_content "android: layout_alignParentLeft =" true "android: layout_alignParentTop = "true" android: layout_marginTop = "34dp" android: text = "City:" android: textSize = "20dp"/> <AutoCompleteTextView android: id = "@ + id/autoCompleteTextView1" android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: layout_alignBottom = "@ + id/textView1" android: layout_toRightOf = "@ + id/textView1" android: EMS = "10" android: text = ""> <requestFocus/> </AutoCompleteTextView> </RelativeLayout>

(2) The first is to manually configure the list Data source:

Package com. example. autocompletetextview; public class MainActivity extends Activity {private AutoCompleteTextView autoCompleteTextView1; private ArrayAdapter <String> adapter; @ Overrideprotected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. activity_main); autoCompleteTextView1 = (AutoCompleteTextView) this. findViewById (R. id. autoCompleteTextView1);/** 1. use the list array adapter */adapter = new ArrayAdapter <String> (this, android. r. layout. simple_list_item_1, getDataSource (); autoCompleteTextView1.setAdapter (adapter);}/** 1. manually set a list array as the data source */public List <String> getDataSource () {List <String> list = new ArrayList <String> (); list. add ("beijing"); list. add ("beida"); list. add ("beiren"); list. add ("shanghai"); list. add ("shangzhou"); list. add ("guangzhou"); list. add ("dancheng"); list. add ("ningping"); list. add ("zhoukou"); list. add ("chengdu"); list. add ("heze"); list. add ("zhumadian"); list. add ("luoyang"); list. add ("shuanglou"); list. add ("yizhong"); list. add ("xindu"); return list;} @ Overridepublic boolean onCreateOptionsMenu (Menu menu) {getMenuInflater (). inflate (R. menu. main, menu); return true ;}}

(4) The second type is the data source created through the xml file.

Name: Add the following configuration under the/values/strings file.

<?xml version="1.0" encoding="utf-8"?><resources>    <string name="app_name">"AutoCompleteTextView "</string>    <string name="action_settings">Settings</string>    <string name="hello_world">Hello world!</string>    <string-array name="countries_array">        <item>Afghanistan</item>        <item>Albania</item>        <item>Algeria</item>        <item>American Samoa</item>        <item>Andorra</item>        <item>Angola</item>        <item>Anguilla</item>        <item>Antarctica</item>        <item>Bfghanistan</item>        <item>Blbania</item>        <item>Blgeria</item>        <item>Bmerican Samoa</item>        <item>Bndorra</item>        <item>Bngola</item>        <item>Bnguilla</item>        <item>Bntarctica</item>    </string-array></resources>

Then the class is:

Package com. example. autocompletetextview; public class MainActivity extends Activity {private AutoCompleteTextView autoCompleteTextView1; private ArrayAdapter <String> adapter; @ Overrideprotected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. activity_main); autoCompleteTextView1 = (AutoCompleteTextView) this. findViewById (R. id. autoCompleteTextView1);/** 2. use the xml file to configure the data source */String [] countries = getResources () in the adapter (). getStringArray (R. array. countries_array); adapter = new ArrayAdapter <String> (this, android. r. layout. simple_list_item_1, countries); autoCompleteTextView1.setAdapter (adapter);} @ Overridepublic boolean onCreateOptionsMenu (Menu menu) {getMenuInflater (). inflate (R. menu. main, menu); return true ;}}

The running result is as follows: