android - 按下确定按钮时，相机活动不会返回到父活动。

Question

我只是有一个小问题。我成功打开相机，按下按钮拍照后，出现以下三个按钮OK，RETAKE和CANCEL。通常，当按下 OK 按钮时，相机活动应该正常返回到父活动并执行 onActivityResult 函数包含的内容。但在我的情况下，当按下 OK 时，相机活动不会返回到父活动。有什么解决这个问题的建议吗？

请在下面找到代码：

OnClickListener btn_TakePictureListener = new OnClickListener() {

@Override
public void onClick(View v) {
        // TODO Auto-generated method stub
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        File imgPath = retrievePath();
        intent.putExtra(MediaStore.EXTRA_OUTPUT, getImageUri(imgPath));
        startActivityForResult(intent, RequestCode);
    }
};

//@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        //super.onActivityResult(requestCode, resultCode, data);

        if (RequestCode == requestCode && resultCode == RESULT_OK) {
           String s = data.getDataString();
           Toast.makeText(getBaseContext(), ""+s, Toast.LENGTH_SHORT).show();
           Toast.makeText(getBaseContext(), "picture is taken", Toast.LENGTH_SHORT).show();
        }           
    }

private String retrieveName() {
    int []x = imgOpHlpr.getIDs();
    String s = imgOpHlpr.getImg_Name(x.length);
    return s;
}

private File retrievePath() {
    int []x = imgOpHlpr.getIDs();
    String s = Environment.getExternalStorageDirectory().getAbsolutePath();
    s += "/myFolder/"+imgOpHlpr.getImg_Path(x.length);
    File file = new File(s);
    return file;            
}

private Uri getImageUri(File path) {
    Uri imgFileUri = Uri.fromFile(path);
    return imgFileUri;
}

Answer 1

我认为你应该实现这样的东西..

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {

    try{
    if (requestCode == IMAGE_CAPTURE) {
        if (resultCode == RESULT_OK) {
            Intent intent = new Intent(CameraCapture.this, Home.class);
            intent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
            finish();
            startActivity(intent);
        }

    }

Answer 2

你忘了创建你写图像的目录。在创建文件对象之前添加此行。

File path = new File(Environment.getExternalStorageDirectory().getPath() + "/myFolder/").
path.mkdirs();