如果App本身由于后台程序需要，退回到前画面时如何自动关闭PictureSelector

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## Current use version？
#### 当前使用的版本是多少？

```
最新版
```

## Will this problem occur in demo?
#### Demo能否复现这问题？

```
没法试
```

## Describe the problem or provide an error log？
#### 描述问题或提供错误log？

PictureSelector.create(this).openGallery(SelectMimeType.ofImage())
.isDisplayCamera(false)
.setMaxSelectNum(1)
.setImageEngine(GlideEngine.createGlideEngine())
.forResult(object : OnResultCallbackListener {
.........

这之后如果App本身由于后台程序需要，退回到前画面时如何自动关闭PictureSelector
比如，PictureSelector打开后，由于长时间未操作，APP需要自动回到login（fragment/activity）

Start from the PictureSelector.create(this).openGallery(...).forResult entry point shown in the report and trace how the selector is hosted across the Android activity or fragment lifecycle. Check the inactivity transition back to the login screen and determine the supported cleanup or dismissal behavior; done means the selector does not remain visible after that transition.

Written by the indexing model from the issue text.