CropImageView

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抄的跟微信一模一样的选择图片裁剪功能，支持不同宽高比裁剪区域，旋转角度裁剪。

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# CropImageView
仿微信图片裁剪功能，支持对图片两指缩放，旋转

图片裁剪成正方形

图片裁剪成长方形

使用方式：下载aar包，项目依赖比较快：https://github.com/liaohailong190/CropImageView/tree/master/aar

在Activity中调用以下代码，调起图片裁剪界面
```kotlin
    val uri = Uri.fromFile(this) // 资源图片uri
    val output = Uri.fromFile(generateImageFile()) // 输出图片uri
    val width = resources.displayMetrics.widthPixels // 输出宽度 px
    val height = (width * cropRatio).toInt() // 输出高度 px
    // 裁剪的宽高比例，通过width和height来控制->width/height
    val options: CropOptions = CropOptions.Factory.create(
        uri,
        output,
        width,
        height,
        Bitmap.CompressFormat.JPEG
    )
    CropImageActivity.showForResult(this@MainActivity, options, REQUEST_CROP)
```
                        
在调起的Activitiy中复写onActivityResult函数，获取裁剪返回值
```kotlin
    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)

if (resultCode == Activity.RESULT_OK) {
            when (requestCode) {
                REQUEST_CROP -> {
                    data?.apply {
                        var uri = getData()
                        // uri is the crop result , do something you want...
                    }
                }
            }
        }
    }
```

CropImageView

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