Showing Progressdialog During Ui Thread Operation In Android

As I've asken on another question HERE it seems that the PackageManager.getInstalledPackages() doesn't play nice with Threading. As CommonsWare stated HERE: Perhaps the PackageMa

Solution 1:

As discovered, the loop to work through the applications takes awhile (which can be done in a separate thread), compared to the call to PackageManager.getInstalledPackages() (which has to be done on the UI thread).

Solution 2:

Use Async to do background work and show indicator while loading data.

in you onCreate(). call new AsyncCommonDataFetcher(this).execute();

publicclassAsyncCommonDataFetcherextendsAsyncTask<Void, Void, Void> {

    ContextmContext=null;
    privateProgressDialogmProgressIndicator=null;

    publicAsyncCommonDataFetcher(Context ctx) {
        mContext = ctx;
    }

protectedvoidonPreExecute() {
        mProgressIndicator = ProgressDialog.show(((Activity) mContext), null,
                    "Please wait", true);

    }
    @Overrideprotected Void doInBackground(Void... voids) {
        // Do what ever work you like to do. It will do this in backgound and show user a indicator to wait.
    }

    @OverrideprotectedvoidonPostExecute(Void voidInstance) {


            try {
                if (mProgressIndicator != null) {
                    mProgressIndicator.hide();
                    mProgressIndicator.dismiss();
                }
            } catch (Exception e2) {
                e2.printStackTrace();
            }
        }

    }
}

Solution 3:

Try the following for ProgressDialog in the onCreate() of your activity

this.requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
ProgressDialog LoadingDialog = ProgressDialog.show(this, "", "Loading..", true);

And then dismiss it when the process causing the delay is over

LoadingDialog.dismiss();