得到

2026-07-15 16:57:36 +08:00
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+<!---
+This is the API of version 1.2.0
+-->
+
+# Canvas
+A Canvas is a Composable that allows you to draw inside of it.
+
+## How to draw on Canvas
+
+<p align="left">
+  <img src ="{{ site.images }}/foundation/canvas/CanvasDrawExample.png" height=100 width=300 />
+</p>
+
+```kotlin
+@Preview(showBackground = true)
+@Composable
+fun CanvasDrawExample() {
+    Canvas(modifier = Modifier.fillMaxSize()) {
+        drawRect(Color.Blue, topLeft = Offset(0f, 0f), size = Size(this.size.width, 55f))
+        drawCircle(Color.Red, center = Offset(50f, 200f), radius = 40f)
+        drawLine(
+            Color.Green, Offset(20f, 0f),
+            Offset(200f, 200f), strokeWidth = 5f
+        )
+
+        drawArc(
+            Color.Black,
+            0f,
+            60f,
+            useCenter = true,
+            size = Size(300f, 300f),
+            topLeft = Offset(60f, 60f)
+        )
+    }
+}
+```
+
+## See also:
+* [Full Example Code]({{ site.samplefolder }}/foundation/CanvasDrawExample.kt)