Android Autocompletetextview control implementation similar to Baidu search hint, limit input number length

The Android Autocompletetextview control implements similar search hints, with the following effects

1. First post the layout code activity_main.xml:

<?xml version= "1.0" encoding= "Utf-8"? ><linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"Android:layout_width= "Fill_parent"Android:layout_height= "Fill_parent"android:orientation= "Vertical" > <Autocompletetextview Android:id= "@+id/autocomplete"Android:layout_width= "Fill_parent"Android:layout_height= "Wrap_content"/> <LinearLayout android:layout_width= "Fill_parent"Android:layout_height= "Wrap_content"Android:layout_margintop= "100DP"android:orientation= "Horizontal" > <TextView Android:id= "@+id/tv"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"android:ellipsize= "Marquee"android:focusable= "true"Android:focusableintouchmode= "true"Android:marqueerepeatlimit= "Marquee_forever"android:scrollhorizontally= "true"Android:text= "Please input the text:"android:textsize= "18sp"/> <EditText Android:id= "@+id/et"Android:layout_width= "Fill_parent"Android:layout_height= "Wrap_content"Android:hint= "Only 10 digits can be entered"Android:inputtype= "Number"/> </LinearLayout></LinearLayout>

2. Control drop-down list item layout file Main_item_row.xml:

<?xml version= "1.0" encoding= "Utf-8"? ><linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"Android:layout_width= "Fill_parent"Android:layout_height= "Fill_parent"android:orientation= "Vertical" > <TextView Android:id= "@+id/brandname"Android:layout_width= "Fill_parent"Android:layout_height= "30DP"android:textsize= "18sp"/> <TextView Android:id= "@+id/searchtext"Android:layout_width= "Fill_parent"Android:layout_height= "Wrap_content"android:visibility= "Gone"/></linearlayout>

3.java Code implementation: Mainactivity.java

 PackageCom.example.autocompletetextview;Importjava.util.ArrayList;ImportJava.util.HashMap;Importandroid.app.Activity;ImportAndroid.os.Bundle;Importandroid.text.Editable;ImportAndroid.text.TextWatcher;ImportAndroid.view.View;ImportAndroid.widget.AdapterView;ImportAndroid.widget.AdapterView.OnItemClickListener;ImportAndroid.widget.AutoCompleteTextView;ImportAndroid.widget.EditText;ImportAndroid.widget.SimpleAdapter;ImportAndroid.widget.TextView;ImportAndroid.widget.Toast; Public classMainactivityextendsActivity {ArrayListNewArraylist();    Autocompletetextview Autocompletetextview; PrivateEditText Medittext; @Override Public voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);        Setcontentview (R.layout.activity_main);        Additems (); Autocompletetextview=(Autocompletetextview) Findviewbyid (R.ID.AUTOCOMPLETETV); Simpleadapter Notes=NewSimpleadapter ( This, List, R.layout.main_item_row,NewString[] {"Brandsearchtext",                        "Brandname"},New int[] {r.id.searchtext, r.id.brandname});        Autocompletetextview.setadapter (Notes); Autocompletetextview.setthreshold (1); Autocompletetextview.setonitemclicklistener (NewOnitemclicklistener () {@Override Public voidOnitemclick (adapterview<?> arg0, View arg1,intArg2,LongArg3) {TextView TV=(TextView) Arg1.findviewbyid (r.id.brandname); Autocompletetextview.settext (Tv.gettext (). toString ()+ " ");            Autocompletetextview.setselection ((Autocompletetextview. GetText (). toString ()). Length ());        }        }); /**Textwatcher Operation*/Medittext=(EditText) Findviewbyid (r.id.et);    Medittext.addtextchangedlistener (Mtextwatcher); }    Private voidAdditems () {HashMap<string, string>item; Item=NewHashmap<string, string>(); Item.put ("Brandsearchtext", "NOKIA Nuojiya Njy"); Item.put ("Brandname", "Nokia");        List.add (item); Item=NewHashmap<string, string>(); Item.put ("Brandsearchtext", "Svmsun SX sanxing"); Item.put ("Brandname", "Samsung");        List.add (item); Item=NewHashmap<string, string>(); Item.put ("Brandsearchtext", "Svmsun SX Sanzhi"); Item.put ("Brandname", "Three squirrels");        List.add (item); Item=NewHashmap<string, string>(); Item.put ("Brandsearchtext", "Motorola Moto Mtll Motuoluola Motoloar"); Item.put ("Brandname", "Motorola");    List.add (item); } textwatcher Mtextwatcher=NewTextwatcher () {PrivateCharsequence temp; Private intEditstart; Private intEditend; @Override Public voidBeforetextchanged (Charsequence S,intArg1,intArg2,intArg3) {Temp=s; } @Override Public voidOnTextChanged (Charsequence S,intArg1,intArg2,intArg3) {} @Override Public voidaftertextchanged (Editable s) {Editstart=Medittext.getselectionstart (); Editend=Medittext.getselectionend (); if(Temp.length () > 10) {Toast.maketext (mainactivity. This, "You have entered more words than the limit!" ", Toast.length_short). Show (); S.delete (Editstart-1, Editend); intTempselection =Editstart;                Medittext.settext (s);            Medittext.setselection (tempselection); }        }    };}

Android Autocompletetextview control is similar to Baidu search hint, limit the input number length