Android自定义Dialog无法Dismiss的解决方案

public class RecipeDetailsActivity extends Activity {

    // 声明RecipeLoading实例作为成员变量
    RecipeLoading recipeLoading;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_recipe_details); // 替换为你的布局文件
        // ... 其他初始化代码
    }

    // 显示Dialog
    private void showLoadingDialog() {
        recipeLoading = new RecipeLoading(this);
        recipeLoading.show();
    }

    // 关闭Dialog
    private void dismissLoadingDialog() {
        if (recipeLoading != null && recipeLoading.isShowing()) {
            recipeLoading.dismiss();
            recipeLoading = null; // 释放资源
        }
    }

    // 在需要的时候调用showLoadingDialog()和dismissLoadingDialog()
    // 例如，在异步任务开始前显示，任务结束后关闭
    private void performAsyncTask() {
        showLoadingDialog();
        new AsyncTask<Void, Void, Void>() {
            @Override
            protected Void doInBackground(Void... voids) {
                // 模拟耗时操作
                try {
                    Thread.sleep(3000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                return null;
            }

            @Override
            protected void onPostExecute(Void aVoid) {
                dismissLoadingDialog();
            }
        }.execute();
    }
}

public class RecipeLoading extends Dialog {
    public RecipeLoading(@NonNull Context context) {
        super(context);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_recipe_loading); // 替换为你的布局文件

        // 设置Dialog属性
        setCancelable(false);
        getWindow().setBackgroundDrawable(new ColorDrawable(getContext().getResources().getColor(android.R.color.transparent)));
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND);
    }
}