progressdialog

问题 When a user presses a tab in my application - I want a background task to get kicked off which shows a progress bar. I do this by launching a AsyncTask from the onResume() of my activity. The problem is that my progress dialog is not shown when doing this - the background task runs successfully and after the onPostExecute is run focus is returned to my activity and the application continues as normal. How can I launch a AsyncTask from the onResume = or when an activity is started with still

问题 When a user presses a tab in my application - I want a background task to get kicked off which shows a progress bar. I do this by launching a AsyncTask from the onResume() of my activity. The problem is that my progress dialog is not shown when doing this - the background task runs successfully and after the onPostExecute is run focus is returned to my activity and the application continues as normal. How can I launch a AsyncTask from the onResume = or when an activity is started with still

问题 I am trying to execute the method doSomeWork(); after the ProgressDialog dismisses in my method printing(); which seems to be overlapped by the other method and the dialog is not showed up. If I comment method doSomeWork(); the dialog is displayed correctly until the thread is finished. Here is my method printing(); public void printing() { final ProgressDialog printingDialog = ProgressDialog.show(this, "Printing...", "Please wait", true, false); new Thread(new Runnable() { @Override public

问题 I am trying to execute the method doSomeWork(); after the ProgressDialog dismisses in my method printing(); which seems to be overlapped by the other method and the dialog is not showed up. If I comment method doSomeWork(); the dialog is displayed correctly until the thread is finished. Here is my method printing(); public void printing() { final ProgressDialog printingDialog = ProgressDialog.show(this, "Printing...", "Please wait", true, false); new Thread(new Runnable() { @Override public

问题 How to show the ProgressDialog button after n seconds (fixed) delay that the ProgressDialog is shown? To be more clear, the ProgressDialog starts normally. How can I show a button within it after n seconds? L.F. EDIT Using the answers of Segi and android_beginner (thank you very much) I'm posting the solution of my problem: pDialog = new ProgressDialog(mContext); pDialog.setTitle(Reso.getString(mContext, R.string.waiting)); pDialog.setMessage(Reso.getString(mContext, R.string.waiting));

问题 So I've got these long running server calls over what is basically OData going on in my Android application. The consumer of the calls uses .execute().get() to wait for the response from the network thread (I know the proper way is to make the whole thing asynchronous and callback-based, but the app cannot function in any way without this data, and completely rearchitecting it to work in that way doesn't seem to provide any benefits). So I found many snippets online where using the

问题 I have a webform with two upload controls and a number of textfields. When the button is pressed the files get uploaded and then get processed. The upload takes no time, but the processing does. I know I can't have an upload control in an update panel, so I can't work out how to use the update progress control to show my progress. My page with an updateprogress control that does work is as follows: <asp:UpdatePanel ID="UpdatePanel1" runat="server"> <ContentTemplate> <asp:UpdateProgress ID=

问题 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 PackageManager needs to be invoked on the main application thread, for some reason So having it on a thread gets undesired behavior, entering and exiting a few times in my Activity makes the list of displayed apps sometimes with items, sometimes empty. Having everything in the UI Thread works like a dream, loads fine everytime

问题 Friends; How To Set ProgressDialog Second Progress Bar Like Below Images. thanx. 回答1: The screenshot you show is not a ProgressDialog, it is just a Dialog with a custom layout. What you need, in order to show a dialog like the one in your picture is: A custom layout defining two ProgressBars, one below the other. Create a Dialog and call yourDialog.setContentView(R.id.yourCustomLayout) That's it, that's all you need I would like to call your attention to the fact that you can also show the

问题 I am writing an activity, that loads data from a server and displays it as a list using ArrayAdapter. For that I'm showing a progress dialog i.e loading, while it loads all data from the server. Then i dismiss the dialog in a handler. My problem is that when ever i change the orientation, the progress dialog is again shown, which is not needed, because all the data is displayed already? 回答1: I would say you have two options : Either you force your activity not to be able to change orientation