Android相机对焦模式 [英] Android Camera Focus Mode

问题描述

我正在尝试制作自定义相机应用程序 我想让用户可以在此应用程序中选择对焦模式.

I am trying to make a custom camera application I want to let the users can choose the focus mode in this application.

对焦模式是自动对焦和触摸对焦

The focus mode is auto and touch-to-focus

如果我们想在相机中使用触摸对焦，该如何开始呢?

If we want to use touch-to-focus in the camera , how can be start with?

推荐答案

尝试一下:

public void takePhoto(File photoFile, String workerName, int width, int height, int    quality) {
if (getAutoFocusStatus()){
    camera.autoFocus(new AutoFocusCallback() {
        @Override
        public void onAutoFocus(boolean success, Camera camera) {
            camera.takePicture(shutterCallback, rawCallback, jpegCallback);
        }
    }); 
}else{
    camera.takePicture(shutterCallback, rawCallback, jpegCallback);
}

但是，我也看到了这个方法的工作，可能更准确:

However, I've also seen this to work, possibly more accurately:

if (getAutoFocusStatus()){
    camera.autoFocus(new AutoFocusCallback() {
        @Override
        public void onAutoFocus(boolean success, Camera camera) {
           if(success) camera.takePicture(shutterCallback, rawCallback, jpegCallback);
        }
    }); 
}else{
    camera.takePicture(shutterCallback, rawCallback, jpegCallback);
}

最后一个在成功完成聚焦时拍摄照片.与QR扫描代码一起使用时效果很好.我相信同样的情况也适用于这样的情况.

The last one takes the picture at the moment the focussing is successfully completed. It works very well for using with QR scanning codes. I believe the same applies to cases like this.

这篇关于Android相机对焦模式的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！