android ellipsize multiline textview

I've run into this problem, too. There's a rather old bug about it that remains unanswered: Bug 2254

In my case, there is no need to code this in Java. Everything works as expected. No need for something like android:singleLine="false".

<TextView
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:ellipsize="end"
  android:maxLines="4"
  android:text="@string/very_long_text" />

But there seems to be a bug in the layout preview of Android Studio (v3.0):

Given Android 7.1.1 on my device this is working:

There's no need to do extra codes in java just do this:

<TextView
    android:id="@+id/productDescription"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:maxLines="4"
    android:ellipsize="end"
    android:singleLine="false"
    android:text="Vehicle Compatibility (Brand/Model) - Hero Ez, Hero Maestro, Hero Pleasure, Honda Activa, Honda Dio, Piaggio Vespa, Suzuki Access, Suzuki Swish, Yamaha Alpha, Yamaha Fascino, Yamaha Ray\nFeatures: Higher NSD with Connected Blocks, Continuous centre Groove, Deeper Shoulder Grooves and Sipes on the tread Blocks\nFunctions: More rubber to wear ; Construction Type: Bias ; Grip: Excellent Dry &amp; Wet Grip ; Functions:Functions: More rubber to wear Better mass transfer, More 'biting' edges to Grip on or Off road" />

Screenshot:

I've found that using ConstraintLayout with start and end bounds setup plus layout_width="0dp" sees the ellipses for multiline TextView. A solution for AppWidget remains at large.

There are a few attributes you should check: android:lines, android:minLines, android:maxLines. To display a maximum of 4 lines and ellipsize it, you just need android:maxLines and android:ellipsize:

<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:maxLines="4"
    android:ellipsize="marquee"
    android:text="Hai!"
    />