android相机单击连续拍摄 [英] android camera click continous shots

问题描述

我正在尝试制作能连续拍摄3张照片的相机.

I am trying to make camera application which takes 3 continuous shots.

我试图将其放入一个循环中多次调用"takePicture".

i have tried to call "takePicture" several times by putting it in a loop.

但没有成功.

请对此事提供帮助.

我们将不胜感激.

推荐答案

永远不要从代码中调用PictureCallback.onPictureTaken()；此回调在就绪后会从系统接收数据，作为对Camera.takePicture()的响应.

You never should call PictureCallback.onPictureTaken() from your code; this callback receives data from the system when it is ready, as response to Camera.takePicture().

仅当打开相机并开始预览时，后一个调用才会成功.因此，仅在循环中调用Camera.takePicture()将不起作用(请参见例如

The latter call will only succeed if the camera is opened and preview is started. Therefore, simply calling Camera.takePicture() in a loop will not work (see e.g. Android 2.3.1 Camera takePicture() Multiple images with one button click). The correct way to handle this is to keep a counter of shots processed in your onPictureTaken(), and if it is less than 3, then restart camera preview and issue (synchroneously) another Camera.takePicture(). After this, onPictureTaken() should return, to allow processing of the next captured frame.

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