设置TextView最多显示多少行string

text.xml

<TextView
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:layout_below="@id/user_block"
  android:ellipsize="none"
  tools:text="请问69会心的话庄白怎么选择啊？请问69会心的话庄白怎么选择啊？请问69会心的话庄白怎么选择啊？请问69会心的话庄白怎么选择啊？"
  />

TextEllipse.java

public static void makeEllipseEnd(TextView textView, String str, int maxLine) {
  textView.setText(str);
  textView.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
        @Override
        public boolean onPreDraw() {
            textView.getViewTreeObserver().removeOnPreDrawListener(this);
            if (textView.getLineCount() > maxLine) {
                int offset = textView.getLayout().getLineEnd(maxLine - 1);
                String text = textView.getText().subSequence(0, offset).toString();
                if (text.endsWith("\n")) {
                    text = text.subSequence(0, offset - 1) + "…\n";
                } else {
                    text = text.subSequence(0, offset - 1) + "…";
                }
                textView.setText(text);
                return false;
            }
            return true;
        }
    });
}