HarmonyOS 鸿蒙Next如何控制input键盘主动拉起
HarmonyOS 鸿蒙Next如何控制input键盘主动拉起
比如点击某个按钮让键盘弹起，输入框聚焦
3 回复
可以参考以下代码
[@Entry](/user/Entry)
[@Component](/user/Component)
struct MainAbility {
@State inputValue: string = '';
build() {
Column() {
Button(<span class="hljs-string"><span class="hljs-string">'点击弹起键盘'</span></span>)
.onClick(() => {
<span class="hljs-comment"><span class="hljs-comment">// 获取输入框实例并聚焦</span></span>
<span class="hljs-keyword"><span class="hljs-keyword">this</span></span>.$element(<span class="hljs-string"><span class="hljs-string">'input'</span></span>).focus();
})
.width(<span class="hljs-string"><span class="hljs-string">'80%'</span></span>)
.height(<span class="hljs-number"><span class="hljs-number">50</span></span>)
.margin({ top: <span class="hljs-number"><span class="hljs-number">20</span></span> })
.backgroundColor(Color.Blue)
.fontSize(<span class="hljs-number"><span class="hljs-number">20</span></span>)
.fontColor(Color.White);
TextField({ placeholder: <span class="hljs-string"><span class="hljs-string">'请输入内容'</span></span>, value: <span class="hljs-keyword"><span class="hljs-keyword">this</span></span>.inputValue })
.onChange((value) => {
<span class="hljs-keyword"><span class="hljs-keyword">this</span></span>.inputValue = value;
})
.id(<span class="hljs-string"><span class="hljs-string">'input'</span></span>)
.width(<span class="hljs-string"><span class="hljs-string">'80%'</span></span>)
.height(<span class="hljs-number"><span class="hljs-number">50</span></span>)
.margin({ top: <span class="hljs-number"><span class="hljs-number">20</span></span> })
.backgroundColor(Color.LightGray)
.fontSize(<span class="hljs-number"><span class="hljs-number">20</span></span>)
.fontColor(Color.Black);
}
.width(<span class="hljs-string"><span class="hljs-string">'100%'</span></span>)
.height(<span class="hljs-string"><span class="hljs-string">'100%'</span></span>)
.justifyContent(FlexAlign.Center)
.alignItems(ItemAlign.Center);
}
}
<button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button>
试试这个
import { BusinessError } from '@kit.BasicServicesKit';
panel.show().then(() => {
console.log(‘Succeeded in showing the panel.’);
}).catch((err: BusinessError) => {
console.error(Failed to show panel: ${<span class="hljs-built_in"><span class="hljs-built_in">JSON</span></span>.stringify(err)});
});
<button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button>
