Lock orientation until Asynctask finish

Question

Only want to block orientation until all the data is loaded in my view. So I thought about the following code but it doesn't work.

private class task extends AsyncTask<String, Void, String> {

   protected String doInBackground(String... params) {
      ...
   }

   protected void onPostExecute(String result) {
      ...
      setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR);
   }

   protected void onPreExecute() {
      ...
      setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_NOSENSOR);
   }
}

When I run these two lines of SENSOR and NOSENSOR my screen turns horizontal automatically, without understanding why. That may be happening?

EDIT: I put the following lines to check the current orientation with the following result:

   protected void onPreExecute() {
        if (getResources().getConfiguration().orientation==Configuration.ORIENTATION_LANDSCAPE) {
            Log.e("TAG","LANDSCAPE");
        }else{
            Log.e("TAG","PORTRAIT");
        }
      setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_NOSENSOR);
   }

Result of Logcat:

LANDSCAPE

But if I remove the two lines (SetRequestedOrientation) do I get this in logcat:

PORTRAIT

Answer 1

Just replace setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR); with setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);

And let me know what happen..

For Entry Level

 protected void onPreExecute() {
    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_NOSENSOR);
}

At Exit Level

 protected void onPostExecute(String result) {
      ...
     setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
   }

Update:

Wired behavior (In your case) but, any way you can get the current orientation using,

int currentOrientation = getResources().getConfiguration().orientation; 

Now set this orientation in onPreExecute() ..

Like,

protected void onPreExecute() {
  ...
  int currentOrientation = getResources().getConfiguration().orientation; 
   if (currentOrientation == Configuration.ORIENTATION_LANDSCAPE) {
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE);
   }
   else {
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT);
   }
}

Simple.. :-)