Add "View More" at the End of Textview After 3 Lines

Set Text View ellipsize and add view more at end

Find my answer

   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 ViewTreeObserver.OnGlobalLayoutListener() {

        @SuppressWarnings("deprecation")
        @Override
        public void onGlobalLayout() {

            ViewTreeObserver obs = tv.getViewTreeObserver();
            obs.removeGlobalOnLayoutListener(this);
            if (maxLine == 0) {
                int lineEndIndex = tv.getLayout().getLineEnd(0);
                String text = tv.getText().subSequence(0, lineEndIndex - expandText.length() + 1) + " " + expandText;
                tv.setText(text);
                tv.setMovementMethod(LinkMovementMethod.getInstance());
                tv.setText(
                        addClickablePartTextViewResizable(Html.fromHtml(tv.getText().toString()), tv, maxLine, expandText,
                                viewMore), TextView.BufferType.SPANNABLE);
            } else if (maxLine > 0 && tv.getLineCount() >= maxLine) {
                int lineEndIndex = tv.getLayout().getLineEnd(maxLine - 1);
                String text = tv.getText().subSequence(0, lineEndIndex - expandText.length() + 1) + " " + expandText;
                tv.setText(text);
                tv.setMovementMethod(LinkMovementMethod.getInstance());
                tv.setText(
                        addClickablePartTextViewResizable(Html.fromHtml(tv.getText().toString()), tv, maxLine, expandText,
                                viewMore), TextView.BufferType.SPANNABLE);
            } else {
                int lineEndIndex = tv.getLayout().getLineEnd(tv.getLayout().getLineCount() - 1);
                String text = tv.getText().subSequence(0, lineEndIndex) + " " + expandText;
                tv.setText(text);
                tv.setMovementMethod(LinkMovementMethod.getInstance());
                tv.setText(
                        addClickablePartTextViewResizable(Html.fromHtml(tv.getText().toString()), tv, lineEndIndex, expandText,
                                viewMore), TextView.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 MySpannable(false){
            @Override
            public void onClick(View widget) {
                if (viewMore) {
                    tv.setLayoutParams(tv.getLayoutParams());
                    tv.setText(tv.getTag().toString(), TextView.BufferType.SPANNABLE);
                    tv.invalidate();
                    makeTextViewResizable(tv, -1, "See Less", false);
                } else {
                    tv.setLayoutParams(tv.getLayoutParams());
                    tv.setText(tv.getTag().toString(), TextView.BufferType.SPANNABLE);
                    tv.invalidate();
                    makeTextViewResizable(tv, 3, ".. See More", true);
                }
            }
        }, str.indexOf(spanableText), str.indexOf(spanableText) + spanableText.length(), 0);

    }
    return ssb;

}

Another class:-

import android.graphics.Color;
import android.text.TextPaint;
import android.text.style.ClickableSpan;
import android.view.View;

public class MySpannable extends ClickableSpan {

private boolean isUnderline = true;

/**
 * Constructor
 */
public MySpannable(boolean isUnderline) {
    this.isUnderline = isUnderline;
}

@Override
public void updateDrawState(TextPaint ds) {
    ds.setUnderlineText(isUnderline);
    ds.setColor(Color.parseColor("#1b76d3"));
}

@Override
public void onClick(View widget) {

 }
}

Last step to call it:

DetailTv.setText(discription);
makeTextViewResizable(DetailTv, 3, "See More", true);

Android Expandable text view with View More Button displaying at center after 3 lines

This is how i have achieved the desired output,

MytextView which i want to expand is: tvDescription
I have a see more button with name: btnSeeMore

To check if the textview has more than 4 lines i had a listener for it as follows,

tvDescription.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
                @Override
                public void onGlobalLayout() {
                    if(expandable) {
                        expandable = false;
                        if (tvDescription.getLineCount() > 4) {
                            btnSeeMore.setVisibility(View.VISIBLE);
                            ObjectAnimator animation = ObjectAnimator.ofInt(tvDescription, "maxLines", 4);
                            animation.setDuration(0).start();
                        }
                    }
                }
            });

I have kept a boolean value to check if textview is already expanded so that there will not be any hickups while collapsing it.

if textview has more than four lines, boolean flag will be true and the button will be visible so this is the code for expanding and collapsing animation.

btnSeeMore.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {

                if (!expand) {
                    expand = true;
                    ObjectAnimator animation = ObjectAnimator.ofInt(tvDescription, "maxLines", 40);
                    animation.setDuration(100).start();
                    btnSeeMore.setImageDrawable(ContextCompat.getDrawable(getActivity(), R.drawable.ic_collapse));
                } else {
                    expand = false;
                    ObjectAnimator animation = ObjectAnimator.ofInt(tvDescription, "maxLines", 4);
                    animation.setDuration(100).start();
                    btnSeeMore.setImageDrawable(ContextCompat.getDrawable(getActivity(),R.drawable.ic_expand));
                }

            }
        });

Comment below for further information

Android, How to limit width of TextView (and add three dots at the end of text)?

Deprecated:

Add one more property android:singleLine="true" in your Textview

Updated:

android:ellipsize="end" 
android:maxLines="1"

Ellipsize not show three dots at end of TextView

I used ellipsize=true in the project I developed before, and it worked well in that project, I compared the code of the current project with the previous one. There is no difference between each other, so I am confused with the current project, so I pulled the previous project from github and ran it, and found that it NOT WORK in my xml renderer, but it WORKS on my phone.

Eventually I found it is the problem of the renderer. I found the button to upgrade the renderer. Now I use the latest renderer, and it also works fine in the redener now.

How to show three dots at the end of text view

You're using ConstraintLayout inside CardView and I can see that you've constrained the TextView properly but its width is wrap_content which what causing the issue. set it to 0dp and your android:ellipsize and android:singleLine attributes will work.

Try this:

<TextView
    ...
    android:layout_width="0dp"
    ... />

How to show 3 dots at the end of text in textview

Make a preset width for your TextView and add these attributes (Shout-out to @T-D)

android:ellipsize="end"
android:maxLines="1"

The maxLines will make sure that your text wont be shown in two lines and the ellipsize will add the three dots in the end.

Old Answer

android:ellipsize="end"
android:singleLine="true"

Display three dots at the end of the textview

Add a drawablePadding attribute along with maxLines and ellipsize.

Try this,

    <EditText
        android:id="@+id/etZipCode"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="10dp"
        android:layout_weight="1"
        android:imeOptions="actionNext"
        android:inputType="text"
        android:maxLength="8"
        android:text="3445"
        android:padding="15dp"
        android:singleLine="true"/>

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="10dp"
        android:layout_marginLeft="5dp"
        android:layout_weight="1"
        android:drawableRight="@drawable/ic_dropdown_pin"
        android:minHeight="50dp"
        android:padding="15dp"
        android:text="Alaska Standard Time"
        android:ellipsize="end"
        android:maxLines="1"
        android:drawablePadding="10dp"
        android:singleLine="true"/>

</LinearLayout>

Screenshot below,

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