Making TextView scrollable on Android

Question

I am displaying text in a TextView that appears to be too long to fit into one screen  I need to make my TextView scrollable  How can I do that  Here is the code  final TextView tv   new TextView this   tv setBackgroundResource R drawable splash   tv setTypeface face   tv setTextSize 18   tv setTextColor R color BROWN   tv setGravity Gravity CENTER VERTICAL  Gravity CENTER HORIZONTAL   tv setOnTouchListener new OnTouchListener         public boolean onTouch View v  MotionEvent e            Random r   new Random            int i   r nextInt 101           if  e getAction      e ACTION DOWN                tv setText tips i                tv setBackgroundResource R drawable inner                     return true            setContentView tv

User · Answer

In kotlin for making the textview scrollable   myTextView movementMethod  ScrollingMovementMethod     and also add in xml this property       android scrollbars    vertical

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If you don t want to use the EditText solution then you might have better luck with    Override public void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout yourLayout        TextView findViewById R id yourTextViewId  setMovementMethod ArrowKeyMovementMethod getInstance

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The  pro tip  above from Someone Somewhere  Making TextView scrollable on Android  works great  however  what if you re dynamically adding text to the ScrollView and would like to automatically scroll to the bottom after an append only when the user is at the bottom of the ScrollView   Perhaps because if the user has scrolled up to read something you don t want to automatically reset to the bottom during an append  which would be annoying    Anyway  here it is   if   mTextStatus getMeasuredHeight   - mScrollView getScrollY     lt            mScrollView getHeight     mTextStatus getLineHeight           scrollToBottom        The mTextStatus getLineHeight   will make it so that you don t scrollToBottom   if the user is within one line from the end of the ScrollView

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For a vertically or horizontally scrollable TextView some of the other answers help  but I needed to be able to scroll both ways  What finally worked is a ScrollView with a HorizontalScrollView inside of it  and a TextView inside the HSV  It s very smooth and can easily go side to side or top to bottom in one swipe  It also only allows scrolling in one direction at a time so there s none of the jumping side to side while scrolling up or down  An EditText with editing and cursor disabled works  but it feels terrible  Each attempt to scroll moves the cursor and it requires many swipes to go top to bottom or side to side in even a  100-line file  Using setHorizontallyScrolling true  can work  but there s no similar method to allow vertical scrolling  and it doesn t work inside of a ScrollView as far as I can tell  just learning though  could be wrong

User · Answer

Put maxLines and scrollbars inside TextView in xml    lt TextView android layout width  wrap content      android layout height  wrap content      android scrollbars  vertical      android maxLines  5     any number of max line here        gt    Then in java code   textView setMovementMethod new ScrollingMovementMethod

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Try this   android scrollbars    vertical

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I struggled with this for over a week and finally figured out how to make this work   My issue was that everything would scroll as a  block   The text itself was scrolling  but as a chunk rather than line by line  This obviously didn t work for me  because it would cut off lines at the bottom  All of the previous solutions did not work for me  so I crafted my own   Here is the easiest solution by far   Make a class file called   PerfectScrollableTextView  inside a package  then copy and paste this code in   import android content Context  import android graphics Rect  import android util AttributeSet  import android widget TextView   public class PerfectScrollableTextView extends TextView        public PerfectScrollableTextView Context context  AttributeSet attrs  int defStyle            super context  attrs  defStyle           setVerticalScrollBarEnabled true           setHorizontallyScrolling false              public PerfectScrollableTextView Context context  AttributeSet attrs            super context  attrs           setVerticalScrollBarEnabled true           setHorizontallyScrolling false              public PerfectScrollableTextView Context context            super context           setVerticalScrollBarEnabled true           setHorizontallyScrolling false               Override     protected void onFocusChanged boolean focused  int direction  Rect previouslyFocusedRect            if focused              super onFocusChanged focused  direction  previouslyFocusedRect               Override     public void onWindowFocusChanged boolean focused            if focused              super onWindowFocusChanged focused               Override     public boolean isFocused             return true            Finally change your  TextView  in XML   From   lt TextView  To   lt com your app goes here PerfectScrollableTextView

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If you want text to be scrolled within the textview  then you can follow the following   First you should have to subclass textview   And then use that   Following is an example of a subclassed textview   public class AutoScrollableTextView extends TextView        public AutoScrollableTextView Context context  AttributeSet attrs  int defStyle            super context  attrs  defStyle           setEllipsize TruncateAt MARQUEE           setMarqueeRepeatLimit -1           setSingleLine            setHorizontallyScrolling true              public AutoScrollableTextView Context context  AttributeSet attrs            super context  attrs           setEllipsize TruncateAt MARQUEE           setMarqueeRepeatLimit -1           setSingleLine            setHorizontallyScrolling true              public AutoScrollableTextView Context context            super context           setEllipsize TruncateAt MARQUEE           setMarqueeRepeatLimit -1           setSingleLine            setHorizontallyScrolling true               Override     protected void onFocusChanged boolean focused  int direction  Rect previouslyFocusedRect            if focused              super onFocusChanged focused  direction  previouslyFocusedRect               Override     public void onWindowFocusChanged boolean focused            if focused              super onWindowFocusChanged focused               Override     public boolean isFocused             return true            Now  you have to use that in the XML in this way     lt com yourpackagename AutoScrollableTextView      android layout width  fill parent       android layout height  wrap content       android text  This is very very long text to be scrolled     gt    That s it

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whenever you need to use the ScrollView as parent  And you also use the scroll movement method with TextView    And When you portrait to landscape your device that time occur some issue   like  entire page is scrollable but scroll movement method can t work   if you still need to use ScrollView as parent or scroll movement method then you also use below  desc    If you do not have any problems then you use EditText instead of TextView  see below      lt EditText      android id    id description text question       android layout width  match parent       android layout height  wrap content       android background   null       android editable  false       android cursorVisible  false       android maxLines  6   gt    Here  the EditText behaves like TextView  And your issue will be resolved

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In my case Constraint Layout AS 2 3   Code implementation   YOUR TEXTVIEW setMovementMethod new ScrollingMovementMethod       XML   android scrollbars  vertical  android scrollIndicators  right end

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yourtextView setMovementMethod new ScrollingMovementMethod       you can scroll it now

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Use it like this   lt TextView       android layout width  match parent       android layout height  match parent       android maxLines    AN INTEGER      android scrollbars    vertical    gt

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The best way I found   Replace the TextView with an EditText with these extra attributes   android background   null  android editable  false  android cursorVisible  false    There is no need for wrapping in a ScrollView

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It is not necessary to put in  android Maxlines  AN INTEGER     You can do your work by simply adding   android scrollbars    vertical    And  put this code in your Java class   textview setMovementMethod new ScrollingMovementMethod

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Make your textview just adding this  TextView textview   TextView  findViewById R id your textview id   textview setMovementMethod new ScrollingMovementMethod

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This is how I did it purely in XML    lt  xml version  1 0  encoding  utf-8   gt   lt LinearLayout xmlns android  http   schemas android com apk res android      android orientation  vertical      android layout width  fill parent      android layout height  fill parent  gt        lt ScrollView         android id    id SCROLLER ID          android layout width  fill parent          android layout height  wrap content          android scrollbars  vertical          android fillViewport  true  gt            lt TextView             android id    id TEXT STATUS ID              android layout width  fill parent              android layout height  fill parent              android layout weight  1 0   gt       lt  ScrollView gt   lt  LinearLayout gt    NOTES    android fillViewport  true  combined with android layout weight  1 0  will make the textview take up all available space  When defining the Scrollview  DO NOT specify android layout height  fill parent  otherwise the scrollview doesn t work   this has caused me to waste an hour just now  FFS     PRO TIP   To programmatically scroll to the bottom after appending text  use this   mTextStatus    TextView  findViewById R id TEXT STATUS ID   mScrollView    ScrollView  findViewById R id SCROLLER ID    private void scrollToBottom         mScrollView post new Runnable                 public void run                         mScrollView smoothScrollTo 0  mTextStatus getBottom

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I had this problem when I was using TextView inside the ScrollView  This solution has worked for me    scrollView setOnTouchListener new View OnTouchListener                   Override             public boolean onTouch View v  MotionEvent event                     description getParent   requestDisallowInterceptTouchEvent false                    return false                                     description setOnTouchListener new View OnTouchListener                   Override             public boolean onTouch View v  MotionEvent event                     description getParent   requestDisallowInterceptTouchEvent true                    return false

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When you are done with scrollable  add this line to the view s last line when you enter anything in the view     ScrollView  findViewById R id TableScroller   fullScroll View FOCUS DOWN

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I didn t find TextView scrolling to support the  fling  gesture  where it continues scrolling after a flick up or down  I ended up implementing that myself because I didn t want to use a ScrollView for various reasons  and there didn t seem to be a MovementMethod that both allowed me to select text and click on links

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Add this to your XML layout   android ellipsize  marquee  android focusable  false  android marqueeRepeatLimit  marquee forever  android scrollHorizontally  true  android singleLine  true  android text  To Make An textView Scrollable Inside The TextView Using Marquee    And in code you have to write the following lines   textview setSelected true   textView setMovementMethod new ScrollingMovementMethod

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You can either   surround the TextView by a ScrollView  or set the Movement method to ScrollingMovementMethod getInstance

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The code below creates an automatic horizontal scrolling textview   While adding TextView to xml use   lt TextView android maxLines  1             android ellipsize  marquee            android scrollHorizontally  true   gt    Set the following properties of TextView in onCreate    tv setSelected true   tv setHorizontallyScrolling true

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XML - You can use android scrollHorizontally Attribute  Whether the text is allowed to be wider than the view  and therefore can be scrolled horizontally    May be a boolean value  such as  true  or  false    Prigramacaly - setHorizontallyScrolling boolean

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This will provide smooth scrolling text with a scroll bar   ScrollView scroller   new ScrollView this   TextView tv   new TextView this   tv setText R string my text   scroller addView tv

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Simple  This is how I did it    XML Side    lt  xml version  1 0  encoding  utf-8   gt   lt 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 paddingLeft   dimen activity horizontal margin      android paddingRight   dimen activity horizontal margin      tools context  com mbh usbcom MainActivity  gt       lt TextView         android id    id tv log          android layout width  match parent          android layout height  wrap content          android scrollbars  vertical          android text  Log     gt   lt  RelativeLayout gt   Java side   tv log    TextView  findViewById R id tv log   tv log setMovementMethod new ScrollingMovementMethod        Bonus   To let the text view scroll down as the text fill it  you have to add       android gravity  bottom    to the TextView xml file  It will scroll down automatically as more text comes in   Of course you need to add the text using the append function instead of set text       tv log append   n    text     I used it for Log purpose   I hope this helps

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Add the following in the textview in XML   android scrollbars  vertical    And finally  add  textView setMovementMethod new ScrollingMovementMethod       in the Java file

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All that is really necessary is the setMovementMethod    Here s an example using a LinearLayout   File main xml   lt  xml version  1 0  encoding  utf-8   gt   lt LinearLayout xmlns android  http   schemas android com apk res android      android orientation  vertical      android layout width  fill parent      android layout height  fill parent       gt   lt TextView     android id    id tv1      android layout width  fill parent      android layout height  fill parent      android text   string hello        gt   lt  LinearLayout gt    File WordExtractTest java  public class WordExtractTest extends Activity        TextView tv1           Called when the activity is first created          Override     public void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout main            tv1    TextView findViewById R id tv1            loadDoc               private void loadDoc              String s                for int x 0  x lt  100  x                  s     Line      String valueOf x      n                      tv1 setMovementMethod new ScrollingMovementMethod              tv1 setText s

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This is  How to apply ScrollBar to your TextView   using only XML   First  you need to take a Textview control in the main xml file and write some text into it     like this    lt TextView     android id    id TEXT      android layout height  wrap content      android layout width  wrap content      android text   string long text   gt    Next  place the text view control in between the scrollview to display the scroll bar for this text    lt RelativeLayout xmlns android  http   schemas android com apk res android      android orientation  vertical      android layout height  wrap content      android layout width  fill parent  gt        lt ScrollView         android id    id ScrollView01          android layout height  150px          android layout width  fill parent  gt            lt TextView             android id    id TEXT              android layout height  wrap content              android layout width  wrap content              android text   string long text   gt        lt  ScrollView gt   lt  RelativeLayout gt    That s it

User · Answer

You don t need to use a ScrollView actually   Just set the  android scrollbars    vertical    properties of your TextView in your layout s xml file    Then use   yourTextView setMovementMethod new ScrollingMovementMethod       in your code   Bingo  it scrolls

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