Abnormal scrolling screen capture function.

In the following cases, the scrolling screen capture will automatically stop: the screen capture height exceeds the limit: the limit height depends on the situation, and it is about 14000. In the process of scrolling screen shots, there are operations such as storing pictures, reading and writing files, etc., and the captured pictures will occupy memory space. The height of the general scene interception setting can meet the appeal. In order to prevent your users from forgetting to stop voluntarily, the maximum screen capture height is limited.

Slide to the bottom: When the list slides to the bottom and no more content can be captured, scrolling screen shots will automatically stop.

Content that affects the correct splicing: The intercepted screen contains content that affects the correct splicing, such as "floating window content", dynamically refreshed content and non-solid background (the background will not scroll with the text).

In the process of screen capture, press the power button and other reasons, such as screen blank, horizontal screen switching, incoming calls, etc. : The scrolling screen capture is not supported in the screen blank state, incoming call and landscape mode, so it will automatically exit the scrolling screen capture when encountering the above scenarios.