How can I close a ProgressDialog after a set time?

问题:

I am trying to close a ProgressDialog box automatically after 3 seconds. Here is the dialog:

ProgressDialog progress = new ProgressDialog(this); progress.setTitle("Connecting"); progress.setMessage("Please wait while we connect to devices..."); progress.show(); 

I have tried a few methods, but I am unable to get any one of them to work. A simple time or anything would hopefully suffice. Thanks.

回答1:

AsyncTask is okay if you are processing a long running task and then want to cancel it after, but it's a bit overkill for a 3 second wait. Try a simple handler.

    final ProgressDialog progress = new ProgressDialog(this);     progress.setTitle("Connecting");     progress.setMessage("Please wait while we connect to devices...");     progress.show();      Runnable progressRunnable = new Runnable() {          @Override         public void run() {             progress.cancel();         }     };      Handler pdCanceller = new Handler();     pdCanceller.postDelayed(progressRunnable, 3000); 

Updated adding show/hide:

progress.setOnCancelListener(new DialogInterface.OnCancelListener() {     @Override     public void onCancel(DialogInterface dialog) {         theLayout.setVisibility(View.GONE);     } }); 

文章来源: How can I close a ProgressDialog after a set time?