137 lines
2.7 KiB
Vue
137 lines
2.7 KiB
Vue
<!--@example-->
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<!--<circle-progress-->
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<!-- :canvas-size="120"-->
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<!-- :progress="80"-->
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<!-- content="学习进度"-->
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<!-- progress-color="#42b983"-->
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<!--></circle-progress>-->
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<template>
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<!-- 圆形进度条 -->
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<view
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:style="{ width: canvasSize + 'px', height: canvasSize + 'px' }"
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class="progress-container"
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>
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<canvas
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:style="{ width: canvasSize + 'px', height: canvasSize + 'px' }"
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canvas-id="progressCanvas"
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class="progress-canvas"
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></canvas>
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<view class="progress-text">
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<text class="percent">{{ progress }}%</text>
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<text class="label">{{ content }}</text>
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</view>
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</view>
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</template>
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<script>
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export default {
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name: "circle-progress",
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props: {
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progress: {
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type: Number,
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default: 80,
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},
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canvasSize: {
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type: Number,
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default: 80,
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},
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strokeWidth: {
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type: Number,
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default: 12,
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},
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bgColor: {
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type: String,
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default: "#f0f0f0",
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},
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progressColor: {
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type: String,
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default: "#007AFF",
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},
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textColor: {
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type: String,
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default: "#333",
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},
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content: {
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type: String,
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default: "",
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},
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},
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mounted() {
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this.drawProgress();
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},
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watch: {
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progress() {
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this.drawProgress();
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},
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progressColor() {
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this.drawProgress();
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},
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},
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methods: {
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// 绘制进度条
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drawProgress() {
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const { progress, canvasSize, strokeWidth, bgColor, progressColor } =
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this;
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const ctx = uni.createCanvasContext("progressCanvas", this);
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const center = canvasSize / 2;
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const radius = center - strokeWidth / 2;
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// 清除画布
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ctx.clearRect(0, 0, canvasSize, canvasSize);
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// 绘制背景圆
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ctx.beginPath();
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ctx.arc(center, center, radius, 0, 2 * Math.PI);
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ctx.setStrokeStyle(bgColor);
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ctx.setLineWidth(strokeWidth);
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ctx.stroke();
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// 绘制进度圆
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const startAngle = -Math.PI / 2; // 从顶部开始
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const endAngle = startAngle + (progress / 100) * 2 * Math.PI;
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ctx.beginPath();
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ctx.arc(center, center, radius, startAngle, endAngle);
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ctx.setStrokeStyle(progressColor);
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ctx.setLineWidth(strokeWidth);
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ctx.setLineCap("round");
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ctx.stroke();
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ctx.draw();
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},
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},
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};
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</script>
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<style scoped>
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.progress-container {
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position: relative;
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}
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.progress-canvas {
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border-radius: 50%;
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box-shadow: 0 8rpx 25rpx rgba(0, 0, 0, 0.1);
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}
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.progress-text {
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position: absolute;
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top: 50%;
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left: 50%;
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transform: translate(-50%, -50%);
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text-align: center;
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}
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.percent {
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font-size: 28rpx;
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font-weight: bold;
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color: #333;
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display: block;
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}
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.label {
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font-size: 24rpx;
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color: #666;
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display: block;
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margin-top: 10rpx;
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}
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</style>
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