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Editorial Team
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Asked: 2026-06-02T05:03:42+00:00

I am creating an app MainActivity that can calculate a report from its database

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I am creating an app MainActivity that can calculate a report from its database to be shown in ReportActivity. All report calculation is done in ReportActivity.onCreate().

When the user click on MainActivity-s menu “generate report” the menü remains open for 2 secs until ReportActivity.onCreate() has finished and the report becomes visible.

What is the easiest way to give the user some visual feedback?

I already found ProgressDialog onCreate that shows a progressdialog while doing all calculation in an AsyncTask.

I wonder if there is some easier way to give the user some visual feedbak that the menue was successfully clicked and that the device has not crashed.

in ms windows i would use a waitcursor (hour-glass)

I already tried to open a ProgressDialog() in oncreate of the ReportActivity

    final ProgressDialog progressDialog = ProgressDialog.show(this, "MY Dialog", "Please wait...");

but it is not shown at all.

Update final solution:

As the answerss suggested I implemented an AsyncTask for the processing following this tutorial
based on this codesample

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1 Answer

  1. Editorial Team

    You need to move your long-running code into a background thread. Long-running code on the UI thread will lock up the UI, which causes the user to think the app is frozen/crashing. Look into using AsyncTask. This allows you to run a process on a background thread and also give visual feedback to let the user know that your app is working.

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