为什么android摄像头中的PictureCallback从不调用？

Question

public class InbuiltCamera implements PictureCallback {
private static Camera cameraObject;

public InbuiltCamera() {
    cameraObject = openTheCamera();
}

// //////// METHODS/////////////////////
public static Camera openTheCamera() {
    Camera object = null;
    object = Camera.open();
    return object;
}
public static void closeCamera(){
    if (cameraObject != null)
        cameraObject.release();
}

public void snapIt() {
    cameraObject.takePicture(null, null, this);
}

public void onPictureTaken(byte[] data, Camera parameter) {
    System.out.println("Hi");
}

}

我面临的问题是Hi从来没有打印过。永远！！即使我给了足够的时间,回电也不打.

Answer 1

您实现camera的方法不正确。请阅读文档以了解API的正确用法。http://developer.android.com/reference/android/hardware/camera.html

我还上传了一个相机应用程序示例供大家参考：https://github.com/shrishmv/cameratest

希望这有帮助,