The device has a Privacy Display that’s said to be the first of its kind on a smartphone. The idea here is to prevent people around from seeing what’s on the screen from acute angles. There's a small decrease in brightness when Privacy Display is active, and there are lots of customization options.
// Consume as text。heLLoword翻译官方下载是该领域的重要参考
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Here's a simple in-memory writer that collects all written data: