下面是我的代码
componentDidMount() {
console.log('=================组件的宽高:', this.image.offsetWidth, this.image.offsetHeight);
this.middle.style.width = `${this.contain.offsetWidth}px`;
this.middle.style.height = `${this.contain.offsetWidth}px`;
// 配置图片的宽高
this.image.style.transform = `translate(0px,${parseInt((this.contain.offsetHeight - this.image.height) / 2, 10)}px)`;
}
render() {
return (<div ref={((div) => { this.contain = div; })} className={styles.container}>
<div id="cover-top" ref={(div) => { this.top = div; }} className={styles.coverTop}>
<a href="javascript:">
<input id="imageFile" name="image" type="file" accept="image/gif, image/jpeg, image/jpeg" />点击上传
</a>
<button >选择图片</button>
<input id="x" name="x" />
<input id="y" name="y" />
<input id="width" name="width" />
<input id="height" name="height" />
</div>
<div id="cover-middle" ref={(div) => { this.middle = div; }} className={styles.coverMiddle} />
<div id="cover-down" ref={(div) => { this.down = div; }} className={styles.coverDown}>
<button type="button" >获得裁剪参数</button><span id="params">12121</span>
</div>
<img id="image" ref={(image) => { this.image = image; }} className={styles.image} draggable="true" src={test} />
</div>
);
}
除了第一次启动可以正常获得宽高之后,刷新浏览器等获得的宽高都不正常,高度一直就是0