Add "View More" at the end of TextView after 3 lines [duplicate]

Question

I want to add "More" functionality after three lines of text. The text contains the description which is more than 10 lines. so we have decided to add "More" after three lines of text. Like:

when the text is showing the complete description, then it should show "Less" button at the end of text which again compress the TextView.

Answer 1

Try this may help you working fine with me.

    public class MainActivity extends Activity {      TextView tv;      @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);         tv = (TextView) findViewById(R.id.tv);         makeTextViewResizable(tv, 3, "View More", true);     }      @Override     public boolean onCreateOptionsMenu(Menu menu) {         // Inflate the menu; this adds items to the action bar if it is present.         getMenuInflater().inflate(R.menu.main, menu);          return true;     }      public static void makeTextViewResizable(final TextView tv, final int maxLine, final String expandText, final boolean viewMore) {          if (tv.getTag() == null) {             tv.setTag(tv.getText());         }         ViewTreeObserver vto = tv.getViewTreeObserver();         vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {              @SuppressWarnings("deprecation")             @Override             public void onGlobalLayout() {                 String text;                 int lineEndIndex;                 ViewTreeObserver obs = tv.getViewTreeObserver();                 obs.removeOnGlobalLayoutListener(this);                  if (maxLine == 0) {                     lineEndIndex = tv.getLayout().getLineEnd(0);                     text = tv.getText().subSequence(0, lineEndIndex - expandText.length() + 1) + " " + expandText;                 } else if (maxLine > 0 && tv.getLineCount() >= maxLine) {                     lineEndIndex = tv.getLayout().getLineEnd(maxLine - 1);                     text = tv.getText().subSequence(0, lineEndIndex - expandText.length() + 1) + " " + expandText;                 } else {                     lineEndIndex = tv.getLayout().getLineEnd(tv.getLayout().getLineCount() - 1);                     text = tv.getText().subSequence(0, lineEndIndex) + " " + expandText;                 }                 tv.setText(text);                 tv.setMovementMethod(LinkMovementMethod.getInstance());                 tv.setText(                             addClickablePartTextViewResizable(SpannableString(tv.getText().toString()), tv, lineEndIndex, expandText,                                     viewMore), BufferType.SPANNABLE);             }         });     }      private static SpannableStringBuilder addClickablePartTextViewResizable(final Spanned strSpanned, final TextView tv,             final int maxLine, final String spanableText, final boolean viewMore) {         String str = strSpanned.toString();         SpannableStringBuilder ssb = new SpannableStringBuilder(strSpanned);          if (str.contains(spanableText)) {             ssb.setSpan(new ClickableSpan() {                  @Override                 public void onClick(View widget) {                         tv.setLayoutParams(tv.getLayoutParams());                         tv.setText(tv.getTag().toString(), BufferType.SPANNABLE);                         tv.invalidate();                     if (viewMore) {                         makeTextViewResizable(tv, -1, "View Less", false);                     } else {                         makeTextViewResizable(tv, 3, "View More", true);                     }                  }             }, str.indexOf(spanableText), str.indexOf(spanableText) + spanableText.length(), 0);          }         return ssb;     } } 

UPDATE : Remove UnderLine from spaneble text

1. Create Custom ClickableSpan

public class MySpannable extends ClickableSpan {      private boolean isUnderline = false;      /**      * Constructor      */     public MySpannable(boolean isUnderline) {         this.isUnderline = isUnderline;     }      @Override     public void updateDrawState(TextPaint ds) {         ds.setUnderlineText(isUnderline);         ds.setColor(Color.parseColor("#343434"));      }      @Override     public void onClick(View widget) {      } } 

2. Change in addClickablePartTextViewResizable() method

private static SpannableStringBuilder addClickablePartTextViewResizable(final Spanned strSpanned, final TextView tv,                                                                             final int maxLine, final String spanableText, final boolean viewMore) {         String str = strSpanned.toString();         SpannableStringBuilder ssb = new SpannableStringBuilder(strSpanned);          if (str.contains(spanableText)) {             ssb.setSpan(new MySpannable(false){                 @Override                 public void onClick(View widget) {                         tv.setLayoutParams(tv.getLayoutParams());                         tv.setText(tv.getTag().toString(), BufferType.SPANNABLE);                         tv.invalidate();                     if (viewMore) {                         makeTextViewResizable(tv, -1, "View Less", false);                     } else {                         makeTextViewResizable(tv, 3, "View More", true);                     }                 }             }, str.indexOf(spanableText), str.indexOf(spanableText) + spanableText.length(), 0);          }         return ssb;     } 

OutPut: