在旋转的多边形裁剪区域内添加按钮。可通过以下步骤实现:
创建一个指定尺寸和颜色的多边形裁剪区域(Clip),并将其添加到视图(View)中。
创建一个按钮(Button),并将其添加到视图中。
将按钮的裁剪区域(Clip)设置为多边形裁剪区域。
使用属性动画(ObjectAnimator)实现旋转多边形的效果。
示例代码(Kotlin):
创建多边形裁剪区域:
val polygonPath = Path()
polygonPath.moveTo(100f, 100f)
polygonPath.lineTo(200f, 150f)
polygonPath.lineTo(150f, 250f)
polygonPath.lineTo(50f, 200f)
polygonPath.close()
val polygonClip = Outline()
polygonClip.setPath(polygonPath)
val clipDrawable = ClipDrawable(ColorDrawable(Color.RED), Gravity.CENTER, ClipDrawable.HORIZONTAL)
clipDrawable.outline = polygonClip
view.background = clipDrawable
创建按钮并设置裁剪区域:
val button = Button(context)
button.text = "Rotate Me!"
button.setBackgroundColor(Color.YELLOW)
val buttonClip = Outline()
buttonClip.setPath(polygonPath)
val clipDrawable = ClipDrawable(ColorDrawable(Color.BLUE), Gravity.CENTER, ClipDrawable.HORIZONTAL)
clipDrawable.outline = buttonClip
button.background = clipDrawable
添加按钮到视图:
val layoutParams = LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)
layoutParams.gravity = Gravity.CENTER
addView(button, layoutParams)
旋转多边形动画:
val animator = ObjectAnimator.ofFloat(view, View.ROTATION, 0f, 360f)
animator.duration = 5000
animator.repeatCount = ValueAnimator.INFINITE
animator.interpolator = LinearInterpolator()
animator.start()
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