CODEWITHSUNDEEP
androidandroid-activity
Waypoint
Waypoint

Reputation: 17763

Android - check return to activity

I have implemented a downloader, when the download is finished, I need to display upload in a list. List in separated activity I return to, when download is finished. Is there any way how to check, from where I have entered the activity? Because I need to update List and I don't know to deremine update. I have tried it in onResume, but this is invokend also after onCreate, so this doesn't solve my problem.

Thanks

Edit:

I am calling download this way:

                  mProgressDialog.setTitle("Downloading");
                  mProgressDialog.setMessage("Downloading data...");
                  mProgressDialog.setIndeterminate(false);
                  mProgressDialog.setMax(100);
                  mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
                  DownloadFilesTask downloadFile = new DownloadFilesTask(DownloaderMap.this);
                  downloadFile.execute(myUrl);
                  mProgressDialog.show();

Upvotes: 0

Views: 251

Answers (2)

Jave
Jave

Reputation: 31846

If you start your download-Activity using startActivityForResult(), you will be returned to the onActivityResult() method, where you will also be able to see if the download (or other action) was a success or not (use setResult() for this).

Update: As you are using an AsyncTask you can just put any code you need to be run after completion in its onPostExecute()-method. If you need to execute methods local to your Activity, it might be easiest to just put the AsyncTask as an internal class of the Activity.

Upvotes: 2

rspython
rspython

Reputation: 229

If i understand your question correctly, you want to know how to tell, from a particular activity, what called it?

I'm not sure if there are other solutions to this, but the easiest one I can think of would be to put an extra on the intent when you trigger your activity, then read that out in onCreate.

e.g. when constructing your intent you'd have a line such as

newIntent.putExtra("callingActivity", this.getClass().getName());

and in the onCreate you'd read that with

this.getIntent().getStringExtra("callingActivity");

Upvotes: 0

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