安卓触摸对焦

Question

我正在尝试制作一个自定义相机应用程序，让用户触摸屏幕进行对焦，而不是拍照。Android中是否有相关API支持？

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);
}

this.photoFile = photoFile;
this.workerName = workerName;
this.imageOutputWidth = width;
this.imageOutputHeight = height;
}

public void takePhoto(File photoFile, int width, int height, int quality) {
takePhoto(photoFile, null, width, height, quality);
}

- Larry Lo

Answer 1

如果您不想拍照，请勿从自动对焦回调中调用takepicture()。 此外，如果您想要聚焦用户触摸屏幕的点，则可以使用setFocusAreas()设置聚焦区域。

- mchouhan_google