java - how to add auto texview scroll like google translator -

how add horizontalscrollview: auto-scroll end when new views added in textview image want create type of textview scoll when type text plz me?

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my layout

<?xml version="1.0" encoding="utf-8"?> <relativelayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/activity_main"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:paddingbottom="@dimen/activity_vertical_margin"     android:paddingleft="@dimen/activity_horizontal_margin"     android:paddingright="@dimen/activity_horizontal_margin"     android:paddingtop="@dimen/activity_vertical_margin"     tools:context="com.textviewdemo.mainactivity">       <edittext         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:inputtype="textpersonname"         android:text="name"         android:ems="10"         android:layout_alignparenttop="true"         android:id="@+id/edittext"         android:layout_alignparentright="true"         android:layout_alignparentend="true"         android:layout_alignparentleft="true"         android:layout_alignparentstart="true" />       <textview         android:text="textview"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_below="@+id/edittext"         android:gravity="right|center_vertical"         android:layout_gravity="right|center_vertical"         android:scrollhorizontally="true"         android:textsize="30dp"         android:layout_margintop="8dp"         android:id="@+id/textview" />  </relativelayout> 

my main activity

public class mainactivity extends appcompatactivity {      edittext edittext;     textview textview;     horizontalscrollview horizontalscrollview;     @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);          edittext = (edittext) findviewbyid(r.id.edittext);         textview = (textview) findviewbyid(r.id.textview);         edittext.addtextchangedlistener(new textwatcher() {             @override             public void beforetextchanged(charsequence s, int start, int count, int after) {             }              @override             public void ontextchanged(charsequence s, int start, int before, int count) {                 textview.settext(s);             }              @override             public void aftertextchanged(editable s) {             }         });      } } 

wrap textview horizontalscrollview below , remove android:scrollhorizontally="true"

<horizontalscrollview      android:layout_width="wrap_content"      android:layout_height="wrap_content"      android:layout_below="@+id/edittext"      android:id="@+id/horizontalscrollview" >       <textview          android:layout_width="wrap_content"          android:layout_height="wrap_content"          android:textappearance="?android:attr/textappearancelarge"          android:textsize="30dp"          android:layout_margintop="8dp"          android:id="@+id/textview" />  </horizontalscrollview> 

modify oncreate() below:

edittext edittext; textview textview; horizontalscrollview horizontalscrollview;  @override protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);         edittext =(edittext)findviewbyid(r.id.edittext);         textview =(textview)findviewbyid(r.id.textview);         horizontalscrollview =(horizontalscrollview)findviewbyid(r.id.horizontalscrollview);          edittext.addtextchangedlistener(new textwatcher() {             @override             public void beforetextchanged(charsequence s, int start, int count, int after) {             }              @override             public void ontextchanged(charsequence s, int start, int before, int count) {                 textview.settext(s);                 horizontalscrollview.post(new runnable() {                     public void run() {                         horizontalscrollview.fullscroll(horizontalscrollview.focus_right);                     }                 });             }              @override             public void aftertextchanged(editable s) {             }         });                     }