Android : ProgressDialog From Within ContentProvider Class
Dec 5, 2009
I have been stuck at a place , strange, I have a content provider class i.e class extends ContentProvider, I want to know about the method to show the dialog to the user when upgrading / creating a content provider or database from within content provider, I tried many ways for it, but nothing seems to be working, Can anybody here direct me to the reference or can tell me the way I can show progress dialog box from within contentprodiver.
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Jul 27, 2010
What I want is just to have the AsyncTaskTask showing a progressbar an external class. To do this I am passing the context as you can see in the main class. But whatever I try I get NullPointerException.
Working code examples.
Using Android 2.2 by the way.
main:
CODE:............
Update:
I have a follow up question: Using the above code, is it possible to return a value from the onPostExecute method back to the main class, somehow? (Sorry about beeing noobish)
I have tried something like this:
String result = new AsyncClass(this).execute();
and then a method that return back a string. But I can't do that because i got:
Type mismatch: cannot convert from AsyncTask<String,Void,Void> to String
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Jul 7, 2010
I'm creating a new class, using eclipse "New Java Class" dialog box. I can write the superclass I want (I can't find using "browse" button), but I can't write or select an interface to implement. I click "add" but ther is nothing to select. What I'm doing wrong?
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Jul 14, 2010
I'm just getting into Android development, and I have a question about communicating between a receiver class and an activity class. I'm very new to JAVA and Android so I hope I don't sound too stupid. I'm developing an application where I intercept an SMS message and then based on various elements of that SMS I might delete it once it's been saved to the inbox. I have a receiver class that intercepts the txt message, and I am also able to delete messages from my inbox with code in the activity class using a button at the moment. The problem I have is communicating between the receiver class and the activity class where the code to delete a message resides. I tried putting that code directly into the receiver class but as I'm sure most of you already know the BroadcastReceiver class doesn't seem to support what I need to delete messages. I've been searching for an answer to this for a while, but haven't been able to find anything. Honestly I'm not sure I know enough about JAVA and Android to even recognize a solution if I saw it.
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Jun 27, 2010
What I want to do, is be able to access the object neoApi inside the Neoseeker class, from its inner class RunningTimer. Now, in my code, you can see what I would think to work, but when I run my application, nothing pops up. Nothing inside my TextView, no Toast, nothing at all. How can I remedy this?
package com.neoseeker.android.app;
import java.util.Timer;
import java.util.TimerTask;
import org.json.JSONObject;
import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;.......................
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Sep 8, 2010
I'm new to Java and android development. In my application I need data which is accessible for a few activities. I've read that a good solution is to use Application class for this. So I use it like this:
public class MyApplication extends Application {
private String str;
public String getStr(){
return str;
}
public void setStr(String s){
str = s;
}
}
and I can access this variable from activity like this:........................................
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Oct 8, 2010
I have just started android. I just want to know that how can i call activity class from other java class. i just want to pass class object to activity class.
public class GsonParser extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
MagazineThread thread=new MagazineThread();
thread.start();
}
public GsonParser(JsonMagazineParser Obj)
{
}
}
and i am just doing like from other class. GsonParser obj=new GsonParser(this);passing obj to activity class.how can i achieve that.
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Apr 23, 2010
In my app in one package there are some classes. from those classes i want to run one class that is the Gps functionality class. i want to run that class in background. how i do it, i don't know. i am not able to make it solve from any document. if anybody knows the way to solve it please me by run a "hello world" app in the background. i am not able to solve this problem by going through document.
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Jul 20, 2010
I'm building a small Android application, but this is more of a Java question than an android question. Looking through the tutorials there are lines that look like: startService(new Intent(this, MyService.class));
What exactly does the "MyService.class" field represent? Is that just a reference to the class for a template?
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May 19, 2009
I made a Dialog Class with it's view classI want to pop up the dialog when I got some packets from network. so I made a Thread which parses packets and then I made if clause in Run() method There is no problem with parsing packet but when I enter "if clause" and call showDialog() I got Error message
Is there anyone who knows how to pop up a dialog from different thread?
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Jun 17, 2010
I try to show a ProgressDialog at the beginning of my application from an Activity. I debug the application and in theory the dialog is created because it prints a line from onCreateDialog... method.
For more test, I try to show a toast with:
Toast.makeText(MyActivity.this, "test", Toast.LENGTH_LONG);
And nothing is showed.
If is useful, the application is a widget.
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Oct 12, 2009
I'm starting a ProgressDialog using:
ProgressDialog.show(Example.this, " " , " Loading. Please wait ... ", true,true);
Then running a block of code to download and parse XML.
The problem I'm having is that this is all running under a onClick button method, and that the xml is downloaded and parsed before the dialog is shown.
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May 9, 2010
I'm trying to create a ProgressDialog for an Android-App (just a simple one showing the user that stuff is happening, no buttons or anything) but I can't get it right. I've been through forums and tutorials as well as the Sample-Code that comes with the SDK, but to no avail.
This is what I got:
CODE:..........
I've also tried adding pd.show(); and messed around with the parameter in new ProgressDialog resulting in nothing at all (except errors that the chosen parameter won't work), meaning: the ProgressDialog won't ever show up. The app just keeps running as if I never added the dialog.
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Oct 16, 2010
I just tried to implement a progressdialog and I have some issues to change the text during my long and complex calculations.
CODE:..........
I can clearly see the incrementProgressBy working and my dialog updating, but the message does not change.
Any idea on how to make that work?
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Mar 7, 2010
I have a context menu option that, when clicked, will load some information from the web and insert it into a database.So this is a lengthy process and I would like to display a progressdialog over the top of the context menu when this option is selected.I've got the progressdialog running now, but it won't show up.It's almost like the context menu is covering it.So is there a way that I could get the progressdialog to show up on top of the context menu and be visible to the user.
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Jul 30, 2010
I try to call inside onCreate() it is ok but not onClick(). How to make it work?
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Sep 20, 2010
How should I handle an active ProgressDialog when the screen is rotated? Perhaps I should cancel the dialog in onDestroy and restart it in response to a SavedInstanceState flag?
I'm getting an exception and the following message in logcat:
CODE:..............
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Apr 22, 2010
I have the standard ProgressDialog displayed during a lengthy operation. How can I make this ProgressDialog to occupy the entire screen (make it full screen)?
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May 9, 2010
I was following the progress dialog example in the ApiDemos. all went great except for one thing - I want to remove the numbers that appear underneath the bar (those running numbers that run from 0 to .getMax().
couldn't find how to do it.
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May 9, 2010
I was following the progress dialog example in the ApiDemos.
all went great except for one thing - I want to remove the numbers that appear underneath the bar (those running numbers that run from 0 to .getMax().
couldn't find how to do it.
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Sep 14, 2010
Can anyone tell me how to Create a ProgressDialog in Android?
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Aug 1, 2010
I've got a quite interesting issue when I try to display a ProgressDialog (the simple, spinner type) within a onPreferenceChange listener.The ProgressDialog shows up, but not until the method (sleep in this case) has finished. What am I doing wrong?
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Feb 18, 2010
I have a listview of items (songs on the sd card). The user has an option to load all the songs on the sd card to into a current playlist -- those songs are what is displayed in the listview. Because this can take few seconds to load if they have a lot of songs on the card, I want to display a progress dialog to just tell the user "One moment..." until the list refresh is done.
I launch a thread to do this. I've done this successfully on another app I have (which just updates a database in the background but doesn't update any display), but this one fails with this error message, "Can't create handler inside thread that has not called Looper.prepare()". I chopped down the activity and pasted it below. What am I doing wrong here? I have just a vague idea of what might be happening.
By the way, everything works when I take out the threaded stuff, it just looks like the app freezes for a couple seconds.
code:..............
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Feb 17, 2010
When i first launch my main intent, i check if the application was updated and, if yes, i decompress some asset files. This task can take up to 15 seconds (to decompress a 6MB zip file).
So, i was trying to show a ProgressDialog to the user. However, nothing in hell makes the dialog appear.
The lengthy method is called from onCreate. I already tried to put it in onStart, but same thing. I also tried to run it in the ui thread, same thing: no dialog appears, even if "isShowing" returns true.
This is the code:.......................
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Sep 22, 2009
I have some code in my program that processes some stuff, and takes a few seconds. So I thought logically I can place my dialog show at the beginning before processing begins, and cancel it at the end. What ACTUALLY seems to be happening is my dialog shows after the processing is done... Some demo code to show what I mean with a simple sleep:
CODE:.................
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Jun 28, 2010
What is wrong with this code:-
CODE..................
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Aug 13, 2010
I'm writing an Activity which fetches some XML from the web via HTTP and then parses it into a DOM. It then pulls some required data from the DOM.
As you can imagine, this takes a few moments, so I put that code into it's own thread and then tried to set up a ProgressDialog to display while the user is waiting for that to complete.
The problem is that the ProgressDialog doesn't display at all. If I remove the call to dismiss() then it displays after the work is done and, obviously, just sits there...
Here is my code:..................
The constructor of the FighterVersesDownloader is where all the work in terms of HTTP and DOM is done.
Any ideas on what I'm missing? I've seen a few similar threads on this using AsyncTask, but I wanted to use good old fashioned Threads directly and the solutions suggested don't apply.
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Oct 13, 2009
I can't seem to grasp why this is happening.
This code:...................
Throws the following exception:
CODE:...........
I'm calling this from the onCreate method.
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Apr 7, 2010
I just about got this, but I have a small problem in the order of things going off.
Specifically, in my thread() I am setting up an array that is used by a Spinner. Problem is the Spinner is all set and done basically before my thread() is finished, so it sets itself up with a null array.
How do I associate the spinners ArrayAdapter with an array that is being loaded by another thread?
I've cut the code down to what I think is necessary to understand the problem, but just let me know if more is needed. The problem occurs whether or not refreshData() is called.
Along the same lines, sometimes I want to call loadData() from the menu. Directly following loadData() if I try to fire a toast on the next line this causes a forceclose, which is also because of how I'm implementing ProgressDialog.
CODE:...............
I tried changing onCreate() to the following after Jims suggestion.
Not sure if I did this right, still doesn't work:
CODE:....................
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Jun 25, 2010
I'm trying to make a simple ProgressDialog appear while my AsyncTask is fetching data. In my onPreExecute() method I have this: pd = ProgressDialog.show(c, "Loading...", "Please wait");
c is the context passed into the constructor of my AsyncTask from this.getApplicationContext(). Unfortunately, I keep getting an exception with this message: Unable to add window -- Token null is not for an application
What am I doing wrong?
Using this instead of this.getApplicationContext() has revealed another problem. When I call ProgressDialog.show(..., a ProgressDialog is displayed, but not until after the AsyncTask has completed. In other words, the data loads and then the dialog is displayed. If I include pd.dismiss() in my onPostExecute() then I never even see the dialog (presumable because it is closed before it ever gets opened).
It turns out that fetch.get() was hogging the UI thread and not letting the ProgressDialog display.
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