# 图片镜像

**Repository Path**: hspbc/imageMirror

## Basic Information

- **Project Name**: 图片镜像
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 0
- **Created**: 2020-09-09
- **Last Updated**: 2024-07-15

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# 效果图
![原图](https://images.gitee.com/uploads/images/2021/1021/171750_50f1f8da_1013055.png "屏幕截图.png")
![水平翻转](https://images.gitee.com/uploads/images/2021/1021/171807_579001b3_1013055.png "屏幕截图.png")
![垂直翻转](https://images.gitee.com/uploads/images/2021/1021/171826_8b3f1954_1013055.png "屏幕截图.png")

# 代码
```kotlin
private fun toHorizontalMirror(bmp: Bitmap): Bitmap {
    val w = bmp.width
    val h = bmp.height
    val matrix = Matrix()
    matrix.postScale(-1f, 1f) // 水平镜像翻转
    return Bitmap.createBitmap(bmp, 0, 0, w, h, matrix, true)
}

private fun toVerticalMirror(bmp: Bitmap): Bitmap {
    val w = bmp.width
    val h = bmp.height
    val matrix = Matrix()
    matrix.postScale(1f, -1f) // 垂直镜像翻转
    return Bitmap.createBitmap(bmp, 0, 0, w, h, matrix, true)
}
```
调用样例:
```kotlin
imageView.setImageBitmap(toHorizontalMirror(imageView.drawable.toBitmap()))
imageView.setImageBitmap(toVerticalMirror(imageView.drawable.toBitmap()))
```