youxi-app/pages/demo/other/cropper.uvue

<template>
	<cl-page>
		<view class="p-4">
			<cl-text size="lg" bold class="mb-4">图片裁剪器演示</cl-text>

			<view class="mb-4">
				<cl-text size="sm" color="info" class="mb-2">操作说明：</cl-text>
				<cl-text size="xs" color="placeholder" class="block mb-1"
					>• 拖拽图片进行移动</cl-text
				>
				<cl-text size="xs" color="placeholder" class="block mb-1"
					>• 双指缩放图片（围绕双指中心缩放）</cl-text
				>
				<cl-text size="xs" color="placeholder" class="block mb-1"
					>• 拖拽裁剪框进行移动</cl-text
				>
				<cl-text size="xs" color="placeholder" class="block mb-1"
					>• 拖拽裁剪框四角进行缩放</cl-text
				>
				<cl-text size="xs" color="placeholder" class="block mb-1"
					>• 缩放时会显示辅助线</cl-text
				>
				<cl-text size="xs" color="warning" class="block"
					>• 图片会自动保持不小于裁剪框大小</cl-text
				>
			</view>

			<view class="flex justify-center">
				<cl-cropper
					:src="imageSrc"
					:width="320"
					:height="320"
					:crop-width="200"
					:crop-height="200"
					:max-scale="3"
					:min-scale="0.5"
					@crop="onCrop"
					@load="onImageLoad"
				></cl-cropper>
			</view>

			<view class="mt-4 space-y-2">
				<cl-button @tap="selectImage" block>选择图片</cl-button>
				<cl-button @tap="useDefaultImage" type="light" block>使用默认图片</cl-button>
			</view>
		</view>
	</cl-page>
</template>

<script lang="ts" setup>
import { ref } from "vue";

const imageSrc = ref("/static/logo.png");

function selectImage() {
	// 选择图片
	uni.chooseImage({
		count: 1,
		sizeType: ["original", "compressed"],
		sourceType: ["album", "camera"],
		success: (res) => {
			if (res.tempFilePaths.length > 0) {
				imageSrc.value = res.tempFilePaths[0];
			}
		}
	});
}

function useDefaultImage() {
	imageSrc.value = "/static/logo.png";
}

function onCrop(result: any) {
	console.log("裁剪结果:", result);
	uni.showToast({
		title: "裁剪完成",
		icon: "success"
	});
}

function onImageLoad(e: any) {
	console.log("图片加载完成:", e);
}
</script>