相机图标消失

Question

我制作名片阅读器应用程序，用户点击相机图标进行扫描后点击相机图标变得不可见并发出快门声，如果连续扫描卡片相机图标不显示即已消失。< / p>

Camerafragment.java

SELECT id, name FROM tasks WHERE ABS(DATEDIFF(end_date, CURDATE()))<=7

cameraPreview.java

 mCapture = view.findViewById(R.id.capture); 

    if (mCapture != null) {
        mCapture.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                disableSensors=true;

                if(isManualMode&&totalCardCount==0){

                    card_pack_exhausted.setVisibility(View.VISIBLE);
                }
                else {
                    takePhoto();
                }

            }

        });
    }

    public void takePhoto() {

    mCapture.setEnabled(false);
    mCapture.setVisibility(View.INVISIBLE);

    if (progressBar != null) {
        progressBar.setVisibility(View.GONE);
    }

    cameraPreview.takePicture();
}