| 提交 | 用户 | 时间 | ||
| 5030f3 | 1 | <template> |
| Y | 2 | <el-form size="large" :inline="true" label-width="68px" @submit.native.prevent> |
| 3 | <el-form-item v-for="(item, index) in scanList" | |
| 4 | :key="index" | |
| 5 | label-width="200" | |
| 6 | label="箱体码" | |
| 7 | :prop="item.value" | |
| 8 | style="align-content: center" | |
| 9 | @focus="handleFocus(index)"> | |
| 10 | <input v-model="item.value" | |
| 11 | ref="scanInput${index}" | |
| 12 | style="height: 39px; width: 300px" | |
| 13 | placeholder="请扫描箱体码" | |
| 14 | /> | |
| 15 | </el-form-item> | |
| 16 | </el-form> | |
| 17 | </template> | |
| 18 | ||
| 19 | <script> | |
| 20 | export default { | |
| 21 | data() { | |
| 22 | return { | |
| 23 | scannerFlag: false, | |
| 24 | scanList: [ | |
| 25 | { value: '' }, | |
| 26 | { value: '' }, | |
| 27 | // 可以根据需要增加更多的项 | |
| 28 | ], | |
| 29 | focusedIndex: 0, // 当前聚焦的input索引 | |
| 30 | }; | |
| 31 | }, | |
| 32 | mounted() { | |
| 33 | this.focusScanInput(this.focusedIndex); | |
| 34 | this.setFocus() | |
| 35 | this.$refs.scanInput$index.addEventListener('keydown',this.handleScannerInput) | |
| 36 | }, | |
| 37 | beforeDestroy() { | |
| 38 | this.$refs.scanInput$index.removeEventListener('keydown',this.handleScannerInput) | |
| 39 | }, | |
| 40 | watch: { | |
| 41 | // 监听scanList的变化，如果发现焦点索引超出范围，则自动聚焦到最后一个输入框 | |
| 42 | scanList: { | |
| 43 | deep: true, | |
| 44 | handler(newList) { | |
| 45 | if (this.focusedIndex >= newList.length) { | |
| 46 | this.focusedIndex = newList.length - 1; | |
| 47 | this.$nextTick(() => { | |
| 48 | this.focusScanInput(this.focusedIndex); | |
| 49 | }); | |
| 50 | } | |
| 51 | }, | |
| 52 | }, | |
| 53 | }, | |
| 54 | ||
| 55 | methods: { | |
| 56 | refresh() { | |
| 57 | location.reload(); | |
| 58 | }, | |
| 59 | setFocus(){ | |
| 60 | this.$nextTick(()=>{ | |
| 61 | this.$refs.inputdata.focus() | |
| 62 | }) | |
| 63 | }, | |
| 64 | handleScannerInput(event){ | |
| 65 | if (this.scannerFlag){ | |
| 66 | this.barcode = '' | |
| 67 | this.$refs.inputdata.value = '' | |
| 68 | this.scannerFlag = false | |
| 69 | } | |
| 70 | const input = event.target | |
| 71 | const inputValue = input.value | |
| 72 | this.item.value = inputValue | |
| 73 | if (event.key === 'Enter'){ | |
| 74 | this.scannerFlag = true | |
| 75 | console.log('条码：',this.item.value) | |
| 76 | //扫描完成 | |
| 77 | } | |
| 78 | }, | |
| 79 | ||
| 80 | handleFocus(index) { | |
| 81 | this.focusedIndex = index; | |
| 82 | }, | |
| 83 | focusScanInput(index) { | |
| 84 | this.$refs[`scanInput${index}`][0].focus(); | |
| 85 | }, | |
| 86 | }, | |
| 87 | }; | |
| 88 | </script> | |
| 89 | <!--在这个例子中，我们使用了一个数组scanList来动态生成多个输入框。通过handleFocus方法更新当前聚焦的输入框索引， | |
| 90 | 并通过watch来监听scanList的变化，以确保如果新添加的输入框超出了原有的索引范围， | |
| 91 | 我们可以自动聚焦到最后一个输入框上。focusScanInput方法用于设置真实DOM的焦点。--> | |
