添加事件监听器： document.addEventListener('keydown',this.keydownHandler)
然后在处理程序中检查 e.keyCode===13 && e.ctrlKey
不要忘记删除事件监听器 componentWillUnmount
const App = React.createClass({
showMessage () {
alert('SOME MESSAGE');
},
keydownHandler(e){
if(e.keyCode===13 && e.ctrlKey) this.showMessage()
},
componentDidMount(){
document.addEventListener('keydown',this.keydownHandler);
},
componentWillUnmount(){
document.removeEventListener('keydown',this.keydownHandler);
},
render () {
return (
<div>
<h1>Press Ctrl+Enter</h1>
<button onClick={this.showMessage}>Hit</button>
</div>`
);
}
});
export default App;
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