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std::async, std::future creates background tasks and returns values. The thread is expected to return a value. std::async is a function template that starts an asynchronous task and returns a std::future object Asynchronous task: automatically create a thread and start executing the corresponding thread entry function, returning a std::futur ...

Preface AucFrame Future Articles: Introduction and Learning of AucFrame AucFrame Makes Your Gradle Smart "AucFrame Unified Management Gradle" Source Port Gradle for managing lib First, let's look at the architecture of the AucFrame again. AucFrameGeneral We start from the bottom up, create lib folders in the root ...

Support technology sharing, reprinting or copying, please point out the source of the article The blogger is Jack__0023 1. Background Because of the different scenarios, the face detection provided by android last time can not satisfy my use, because long time opening, he will have various small conditions, and then to identify (not in this bl ...

The four most important steps in the Camera operation are: CameraManager -->openCamera --->Open Camera CameraDeviceImpl-->createCaptureSession --->Create Capture Session CameraCaptureSession -->setRepeatingRequest --->Set Preview Interface CameraDeviceImpl-->capture--->Start capturing pictures Prev ...

Now, there are many screen sizes and full screen solutions on the market. Here I use a picture of millet to illustrate: Both of the above screens can be collectively referred to as Liu Hai Ping, but for the smaller Liu Hai on the right, the industry is generally referred to as water drop screen or beauty tip. For illustratio ...

I. Preface In the ordinary writing process, it is often necessary to capture some action and effect maps into gif format, which makes the information covered more comprehensive and vivid. Sometimes, the whole operation process and operation effect can be recorded into MP4, but the file size is relatively large, and many websites are not easy to ...

I. Preface Disk capacity statistics control, to put it bluntly, is used to count the capacity occupied by local disk characters, including but not limited to used space, remaining space, total size, percentage used, etc. The corresponding percentage is displayed by progress bar, the foreground color, background color and text color of the progr ...

function Functions can return, processes can not, processes can be out, functions can also be out, but basically no create function Function name (Parameters) return Return data type is begin end; //Create a function twice, override it for the first time, and do not report an existing error. Add or rep ...

The most complete file and directory operations Sources of information are not easy.   1. Detecting the existence of a specified directory public static class DirFile { /// <summary> /// Detecting the existence of a specified directory /// </summary> /// <param name=" ...

Xiao Ming went into the underground labyrinth to find the treasure, but an earthquake happened after finding it. Magma was produced everywhere in the labyrinth, and Xiao Ming fled to the exit.If he leaves his treasure, Xiao Ming can leave the maze quickly, but he doesn't want to give up his hard work easily.So he rushes to contact your programm ...