您可以限制的TextView 的高度来匹配你的用户希望看到的行数，然后简单地把你的的TextView 在滚动型

You can limit the Height of TextView to match the number of lines you user wants to see, then simply put your TextView in a ScrollView

我做了一个简单的例子来证明这一点......

I had done a simple example to demonstrate this...

<ScrollView android:layout_height="30dp"
        android:layout_width="match_parent">
<TextView 
    android:layout_width="match_parent"
    android:layout_height="30dp"
    android:textSize="16sp"
    android:id="@+id/tv1"
    />
</ScrollView>