如何在 Flutter 中制作可复制的 Text Widget? [英] How to make copyable Text Widget in Flutter?

问题描述

当

When long tab on Text widget, a tooltip show up with 'copy'. When click on the 'copy' the text content should copy to system clipboard.

The following will copy the text on long tap, but does not show up 'copy', so user will not know, the content is copied to the clipboard.

class CopyableText extends StatelessWidget {
  final String data;
  final TextStyle style;
  final TextAlign textAlign;
  final TextDirection textDirection;
  final bool softWrap;
  final TextOverflow overflow;
  final double textScaleFactor;
  final int maxLines;
  CopyableText(
    this.data, {
    this.style,
    this.textAlign,
    this.textDirection,
    this.softWrap,
    this.overflow,
    this.textScaleFactor,
    this.maxLines,
  });
  @override
  Widget build(BuildContext context) {
    return new GestureDetector(
      child: new Text(data,
          style: style,
          textAlign: textAlign,
          textDirection: textDirection,
          softWrap: softWrap,
          overflow: overflow,
          textScaleFactor: textScaleFactor,
          maxLines: maxLines),
      onLongPress: () {
        Clipboard.setData(new ClipboardData(text: data));
      },
    );
  }
}

解决方案

Since Flutter 1.9 you can use

SelectableText("Lorem ipsum...")

When text is selected the "Copy" context button will appear.

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