系统剪切板功能的使用

import pasteboard from '@ohos.pasteboard';

systemPasteboard = pasteboard.getSystemPasteboard();

onListenPasteboard() { 
  let listener = () => { 
    this.systemPasteboard.getData((err, pasteData) => { 
      if (err) { 
        console.error('Failed to get PasteData. Cause: ' + err.message); 
        return; 
      } 
    }); 
    console.info('The system pasteboard has changed.'); 
  }; 
  this.systemPasteboard.on('update', listener); 
}

offListenPasteboard() { 
  let listener = () => { 
    this.message = ''; 
    console.info('The system pasteboard has changed.'); 
  }; 
  this.systemPasteboard.off('update', listener); 
}

var pasteData = pasteboard.createData(pasteboard.MIMETYPE_TEXT_PLAIN, 'Hello Pasteboard'); 
this.systemPasteboard.setData(pasteData, (err, data) => { 
  if (err) { 
    console.error('Failed to set PasteData. Cause: ' + err.message); 
    return; 
  } 
  console.info('Succeeded in setting PasteData.'); 
}); 
 
this.systemPasteboard.getData((err, pasteData) => { 
  if (err) { 
    console.error('Failed to get PasteData. Cause: ' + err.message); 
    return; 
  } 
  this.message = pasteData.getPrimaryText(); 
});

clearPasteboard() { 
  this.systemPasteboard.clearData((err, data) => { 
    if (err) { 
      console.error(`Failed to clear the pasteboard. Cause: ${err.message}`); 
      return; 
    } 
    console.info('Succeeded in clearing the pasteboard.'); 
  }); 
}