Re: [android-developers] Re: Market sales suddenly cut in half

[Jerry Fan]

I am also experiencing sales drop these two days especially today,

On Tue, Apr 26, 2011 at 4:51 AM, Brill Pappin  wrote:

> FYI - CANCELLED would include uninstalls AND failed orders.
>
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Re: [android-developers] Re: Kill an app / package in API 8 (Froyo)

[Jerry Fan]

You can use getRunningTaskInfo compare against getRunningAppProcessInfo. If
process of particular component is not in runnAppProcess list, then you know
it is deleted. I used this trick to work around the new kill process
behavior.

On Thu, Jul 22, 2010 at 11:12 PM, Marcin_GUmeR
wrote:

> Is there any way to replicate old behavior of task killers in froyo?
> (i.e. kill everything associated with an app, including notifications
> etc. and make it never come back, unless manually restarted)
>
> It can be from command line using root.
>
> Thanks
>
> On Jun 16, 12:10 am, "Happy C."  wrote:
> > Hi Dianne,
> >
> > Sorry to bother you.
> >
> > Does the "Force stop" in the setting of android 2.2 also use
> > "KillBackgroundProcess" or use the system level API (developer can't
> > use directly) to make it?
> >
> > I have tried the "KillBackgroundProcess" and adding the related
> > permission, but it can't stop the running app either or  running
> > service like "Force stop" does.
> >
> > //ddms under "Force stop"
> > 06-15 22:08:10.505: INFO/ActivityManager(62): Force stopping package
> > com.MyTestApp/com uid=10037
> > 06-15 22:08:10.505: INFO/Process(62): Sending signal. PID: 647 SIG: 9
> >
> > //ddms under my KillBackgroundProcess
> > 06-15 22:05:32.725: INFO/Process(62): Sending signal. PID: 638 SIG: 9
> > 06-15 22:05:32.754: INFO/WindowManager(62): WIN DEATH:
> > Window{43f4b2d8  com.MyTestApp/com.MyTestApp.act1 paused=false}
> > 06-15 22:05:32.754: INFO/WindowManager(62): WIN DEATH: Window{43fbd930
> > com.MyTestApp/com.MyTestApp.act2
> >  paused=false}
> >
> > "Force stop"  and my  "KillBackgroundProcess" seems to have sent the
> > same signal 9. but they behave differently.
> > I don't know why it doesn't work in my  "KillBackgroundProcess".
> >
> > Thanks very much!
> >
> > On 6月3日, 上午6時41分, Dianne Hackborn  wrote:
> >
> > > On Wed, Jun 2, 2010 at 1:18 AM, Lee  wrote:
> > > >killBackgroundProcessesworks (you need a permission for it), but it
> > > > merely restarts the background services, so it's a little poorly
> > > > named.
> >
> > > Actually it does exactly what it says -- it kills a process.  If an
> > > application has a service that it wants to keep running, the normal
> behavior
> > > of the system kicks in to restart the service for the app.  As the
> > > documentation says, this allows the app to do the same thing is the out
> of
> > > memory killer (killing processes) without breaking applications by
> causing
> > > their services to be stopped when they don't expect (or unregister
> their
> > > alarms or the other things that fully stopping an app does).
> >
> > > --
> > > Dianne Hackborn
> > > Android framework engineer
> > > hack...@android.com
> >
> > > Note: please don't send private questions to me, as I don't have time
> to
> > > provide private support, and so won't reply to such e-mails.  All such
> > > questions should be posted on public forums, where I and others can see
> and
> > > answer them.
> >
> >
>
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Re: [android-developers] Re: horizontal scrolling in GridView control

[Jerry Fan]

but gallery does center lock automatically. Do you know a way make items
shown from left to right and not moving to center upon selected?

On Fri, Jul 16, 2010 at 6:32 PM, Namrata  wrote:

> I had the same issue, I am using gallery instead of grid for this.
>
> On Jul 16, 3:17 pm, CMF  wrote:
> > i have the same question, anybody know the answer?
> >
> > On Jun 23, 3:39 am, dharmveer  wrote:
> >
> > > Hi,
> >
> > > Instead of the currently implemented verticalscrollingin
> theGridViewcontrol, I want to scroll horizontally. So, I want to be able
> > > to move left and right by swiping left/right so the contents scroll
> > > horizontally. I have tried setting the setNumColumns() but that did
> > > not help.
> >
> > > Is there any other way that can help me scroll it horizontally.
> >
> > > Thanks in advance.
> > > -Dharmveer
>
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[android-developers] How to store a drawable in database?

[Jerry Fan]

Hi folks,
is there anyway that I can store drawables into database?

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Re: [android-developers] How to see database files of my phone?

[Jerry Fan]

You need to root it first and then use adb to connect to your phone. App dbs
are normally sotred at  /data/data/(name of the app)/databases/(name of the
db).db

Just use sqlite3 name of the db).db to view it

On Wed, Jul 21, 2010 at 7:44 PM, Nency Robert  wrote:

> HI,
>
> I want to see the database files of my phone is it possible?
>
> Nexus one
>
> Thanks.
>
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Re: [android-developers] Re: Socket in AsyncTask - application crashesso the UI won't be blocked

[Jerry Fan]

You can register a handler in your code and send message to update  your UI
component in Handler. I used this way to solve a similar problem like urs
before. For exapmpel

  if (socket.isConnected()) {
   OutputStreamOut = new
ObjectOutputStream(socket.
getOutputStream());
   InputStreamIn = new
ObjectInputStream(socket.getInputStream());
   // everything worked fine until here
 //instead of doing this, send msg to a customized
handler
//statusTxt.setText("App is now connected to:\n" +
IP + " : "
mHandler.sendEmptyMessage(UPDATE TEXT); //use
something like this
+ Port); // CRASHING 
   connectBt.setText("Disconnect");
   connected = true;
   continueBt.setVisibility(0);
   } else {


On Wed, Jul 21, 2010 at 12:25 AM, stephan  wrote:

> Yep. It seams quite obvious. Thoug we do not know what happens in
> "statusTxt.setText("")" you are probably calling any UI object
> (changing a Dialog message or what so ever). That's not nice. *grin*
>
> maybe you should use
>
> runOnUiThread(new Runnable() {
>@Override
>public void run() {
> statusTxt.setText("App
> is now  connected to:\n" + IP + " : "+ Port);
>}
> });
>
>
> Stephan
>
> On 19 Jul., 20:16, Brion Emde  wrote:
> > It looks to me that you are trying to do stuff in the UI Thread while
> > in the doInBackground() function.
> >
> > You are supposed to do UI related stuff in the onPostExecute(),
> > onPreExecute() and onProgressUpdate(), not in doInBackground.
> >
> > This is what I'm talking about:
> >
> >if (socket.isConnected()) {
> > OutputStreamOut = new
> > ObjectOutputStream(socket.getOutputStream());
> > InputStreamIn = new
> > ObjectInputStream(socket.getInputStream());
> > // everything worked fine until here
> >
> >  This is talking to the UI Thread -> not allowed!!!
> >
> > statusTxt.setText("App is now
> > connected to:\n" + IP + " : "
> > + Port); // CRASHING 
> > connectBt.setText("Disconnect");
> > connected = true;
> > continueBt.setVisibility(0);
> > } else {
> > throw new UnknownHostException();
> > }
> >
> > On Jul 19, 11:47 am, Francesco  wrote:
> >
> > > Hi, when trying to start a socket connection in an AsyncTask, my
> > > application crashes for no reason (debugger says
> > > "android.view.ViewRoot$CalledFromWrongThreadException: Only the
> > > original thread that created a view hierarchy can touch its views.").
> >
> > > If I remove the Async and use the same code, my application works (of
> > > course, if I make the socket connect to a not valid IP or port, the
> > > application freezes for 5 seconds, because that's the socket's
> > > timeout).
> > > As I'd like to avoid that 5 seconds freeze with wrong configurations,
> > > I have to implement the AsyncTask.
> >
> > > The application works just fine opening the socket and everything
> > > related, but as I try and make it change some TextViews, it gives this
> > > error. The AsyncTask doc says:
> >
> > > "AsyncTask enables proper and easy use of the UI thread. This class
> > > allows to perform background operations and publish results on the UI
> > > thread without having to manipulate threads and/or handlers."
> >
> > > So I'm doing something legit.
> >
> > > This is the code, it's quite simple:
> >
> > > private class ConnectTask extends AsyncTask {
> > > protected Void doInBackground(Void... params) {
> > > try {
> > > InetAddress inetAddr =
> InetAddress.getByName(IP);
> > > int PORT = Integer.parseInt(Port);
> >
> > > if (PORT < 0)
> > > throw (new
> NumberFormatException());
> > > if (IP.equals(""))
> > > throw (new
> UnknownHostException());
> >
> > > SocketAddress sockaddr = new
> InetSocketAddress(inetAddr,
> > > PORT);
> > > socket = new Socket();
> > > socket.connect(sockaddr, 5000);
> >
> > > if (socket.isConnected()) {
> > > OutputStreamOut = new
> > > ObjectOutputStream(socket.getOutputStream());
> > > InputStreamIn = new
> ObjectInputStream(socket.get

Re: [android-developers] can not see app in Market

[Jerry Fan]

If u are using milestone and if u just upgraded APAC update, then it is
normal. It takes time to view copy protected apps.

On Sun, Jun 13, 2010 at 7:08 AM, Andrei  wrote:

> I have 3 android  phones with different Os version.
> I can see all my apps, but one disappeared for more than a day and
> still can not see it
>
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Re: [android-developers] IllegalStateException after ListView's adapter has changed

[Jerry Fan]

I have a fix for this. Just set the visibility of ur ListView to Gone during
update and back to visible after update. By doing so, u can avoid the
inconsistency of ur adapter and listView item count.

On Mon, Feb 22, 2010 at 3:31 PM, Jayesh Salvi  wrote:

> Hi,
>
> This is regarding the exception:  "java.lang.IllegalStateException: The
> content of the adapter has changed but ListView did not receive a
> notification." - seen on Android 1.6+
>
> This problem has been discussed in the past [1][2][3][4], and I have
> followed all the solutions suggested in those threads. However, few of my
> users still hit this crash. So I did some source code lookup and have some
> questions.
>
> Here is the description of what my app is doing:
>
> I use a ListView and populate it with an adapter. The adapter is a direct
> derivative of BaseAdapter. I populate the list progressively. As the items
> are downloaded from network they get added to the adapter. The fetching of
> items is done in doInBackground() and when they are ready to get added to
> the adapter I invoke publishProgress(), in the onProgressUpdate() method I
> add new items one-by-one to the adapter. As soon as I add the item to the
> adapter, I invoke notifyDataSetChanged().
>
> I believe this is as per the best practices that Android developers have
> suggested in above mentioned threads.
>
> Despite this I get crash reports with this exception. They are rare, but
> not as rare as ignorable. I myself have hit this crash on my phone/emulator
> only 1-2 times in last couple of months. The user reported crashes are
> roughly 1 to 3 per day (approx. at least 600 users use the app per day) (A
> minority of users may be hitting this crash over and over again)
> . This leads me to believe that my adapter update logic is mostly right,
> but not full proof.
>
> So I dug into the source code of ListView and BaseAdapter.
>
> The exception is thrown because ListView's mItemCount doesn't match the
> underlying adapter's item count. It happens in layoutChildren() [ListView.java
> line 
> 1432
> ]
> 
>  } else if (mItemCount != mAdapter.getCount()) {
> throw new IllegalStateException("The content of the adapter
> has changed but "
> + "ListView did not receive a notification. Make
> sure the content of "
> 
>
> So in order to avoid this from happening mItemCount should be updated as
> soon as the adapter has changed its content. So I searched for locations in
> the code where mItemCount is updated. I found two locations doing that. In
> setAdapter() [ListView.java 
> 431]
> and in onMeasure() [ListView.java 
> 1033].
> Consequently, if I am updating the adapter then either setAdapter() or
> onMeasure() should be executed before the comparision in layoutChildren()
> takes place, otherwise the exception will be thrown.
>
> My question is, is it possible that my code in onProgressUpdate() that
> appends to adapter can get executed between onMeasure() and layoutChildren()
> of the ListView? AFAIU, all three of these methods (onProgressUpdate,
> onMeasure, layoutChildren) run on the same GUI thread.
>
> I call notifyDataSetChanged immediately after I add to adapter in
> onProgressUpdate(). I looked into its source code. It calls methods on
> DataSetObservable and DataSetObserver. I couldn't find how it could directly
> lead to the updating of mItemCount of the ListView, clearly I don't know
> much of the internal layout code.
>
> Please let me know what you think. I am trying to understand this mechanism
> as thoroughly as possible.
>
> Thanks in advance.
>
> Links:
> [1]
> http://www.mail-archive.com/android-developers@googlegroups.com/msg60355.html
> [2]
> http://www.mail-archive.com/android-developers@googlegroups.com/msg65814.html
> [3]
> http://groups.google.com/group/android-developers/browse_thread/thread/77722caa85f87697
> [4]
> http://groups.google.com/group/android-developers/browse_thread/thread/a451221261cb6a93/2ab5bea015c38437?lnk=gst&q=For+Google+about+BaseAdapter+class#2ab5bea015c38437
> [5] ListView.java source code I refered to:
> http://android.git.kernel.org/?p=platform/frameworks/base.git;a=blob;f=core/java/android/widget/ListView.java;h=7c8151e65132a91aecadd2048fe205bd1c6768a9;hb=HEAD
>
> --
> Jayesh
>
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Re: [android-developers] Re: ListView/Adapter IllegalStateException

[Jerry Fan]

I have a fix for this. Just set the visibility of ur ListView to Gone during
update and back to visible after update. By doing so, u can avoid the
inconsistency of ur adapter and listView item count.

On Wed, Mar 31, 2010 at 4:35 PM, ionel  wrote:

> I am calling notifyDataSetChanged() in update method
>
> On Mar 30, 11:36 pm, social hub  wrote:
> > prob u need to call notifyDataSetChanged if data is changed. See if that
> > helps
> >
> > On Tue, Mar 30, 2010 at 3:15 PM, ionel  wrote:
> > > I've implemented a custom ListView and  Adapter, and sometimes I
> > > receive IllegalStateException exception:” ERROR/AndroidRuntime(3575):
> > > java.lang.IllegalStateException: The content of the adapter has
> > > changed but ListView did not receive a notification. Make sure the
> > > content of your adapter is not modified from a background thread, but
> > > only from the UI thread.”
> >
> > > Here is some code example:
> >
> > > public interface BuddyChangeListener {
> >
> > > void onChange(List buddys);
> >
> > > }
> >
> > > public class BuddyListView extends ListView implements
> > > BuddyChangeListener
> >
> > >   public void onChange(List Buddy) {
> > > MyActivity.instance.handler.post(new Runnable() {
> > > public void run() {
> > > if (((BuddyAdapter) refreshListView.getAdapter()) !
> > > = null) {
> > > ((BuddyAdapter)
> > > refreshListView.getAdapter()).update(Buddy);
> > > }
> > > }
> > > });
> > > }
> > > public class BuddyAdapter extends BaseAdapter {
> >
> > > private List   buddyList;
> >
> > > public BuddyAdapter (Context context, List buddyList) {
> > > this.buddyList= buddyList;
> > > }
> >
> > > public void update(List buddyList) {
> > > this.buddyList= buddyList;
> > > this.notifyDataSetChanged();
> > > }
> > > }
> >
> > > Every time when the content of the list need to be updated I run from
> > > onChange method and I use a handler to change the adapter content,to
> > > update the content from UI thread.
> >
> > > Can someone to tell me if I have made something wrong on update ?
> >
> > > Thanks.
> >
> > > --
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Re: [android-developers] Re: Device Seeding Program for Top Android Market Developers

[Jerry Fan]

Is it one phone per developer account ? We have multiple apps qualified the
standard published by 2 developers  sharing the same account.

On Wed, Mar 3, 2010 at 1:49 PM, polyclefsoftware  wrote:

> Yeah, like some others here it didn't even cross my mind that this was
> some sort of phishing scam. I signed up immediately. Maybe I would
> have been more paranoid if the registration form had asked for more
> sensitive information.
>
> Anyway, a clarification from one of the Google folks, please, because
> it's not necessarily clear from the T&C...if a development firm has
> more than one qualifying app, are we eligible for more than one device?
>
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[android-developers] Re: how to convert Picture object to Bitmap object?

[Jerry Fan]

Hi Sujay,
Did you mean the bitmap assigned to Canvas construction is actually used for
combing all kind of text, line, and picture drawing action into one piece of
bitmap object? I'll try it and show you the code tomorrow. Thanks for your
advice.

On Thu, Jun 4, 2009 at 5:26 PM, Sujay Krishna Suresh <
sujay.coold...@gmail.com> wrote:

> If u r talking in the context of storing a canvas to a bitmap, then i'd ask
> u to use the canvas constructor that takes a bitmap as arg... once ur
> drawing is complete, jus store this bitmap... that'll do...
>
> On Thu, Jun 4, 2009 at 2:47 PM, Saurav Mukherjee <
> to.saurav.mukher...@gmail.com> wrote:
>
>> try PictureDrawable class..
>> PictureDrawable pd=new PictureDrawable(String source);
>> since this is a drwable, typecasting to Drawable, and getBitmap()...
>> jus a suggestion... c if it works
>>
>> cheers!
>>
>> On Thu, Jun 4, 2009 at 12:45 PM, jerryfan2000 wrote:
>>
>>>
>>> Hi ,
>>> I am trying to figure out how to do convertion of Picture object
>>> generated by webView to Bitmap for later JPEG encoding and saving to
>>> local f/s. I tried to create a bitmap from pre created Picture object
>>> by BitmapFactory.decodeStream and failed. Seems like Picture object is
>>> unreconginzed format by Bitmap factory. Just wondering is there any
>>> method to do the convertion?
>>>
>>>
>>
>>
>>
>
>
> --
> Regards,
> Sujay
> Mark Twain  - 
> "There is no sadder sight than a young pessimist."
> >
>

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[android-developers] Re: what is the picture format for Picture.WriteToStream?

[Jerry Fan]

i am actually trying to use Canvas and draw the Picture object returned from
webView to it. From my understandingI the bitmap assigned during Canvas
construction probably is used for combining all line drawing, text drawing,
and Picture obj  drawing onto it. So what I am doing is (1) Create a Canvas
obj with a Bitmap object created by me with witdth and hight of the
dimension of Picture onject.  (2) Draw the picture object to the Canvas
Object. (3)  compress the Bitmap object to JPEG format and save it to local
f/s.  I might be wrong too. I will post the codes I wrote tomorrow to let
you guys see. Thanks.

On Thu, Jun 4, 2009 at 10:15 PM, Streets Of Boston
wrote:

>
> I'm not sure, but reading the documentation of Picture, it looks like
> that only the Picture class can read the data written by
> WriteToStream. It may as well be a totally proprietary format only
> known to the Picture class.
>
> But, i could be wrong... :)
>
> On Jun 4, 1:23 am, Jerry Fan  wrote:
> > bump
> >
> > On Thu, Jun 4, 2009 at 10:09 AM, jerryfan2000  >wrote:
> >
> >
> >
> >
> >
> > > Hi,
> > > What format of picture will I get by using Picture.WriteToStream?- Hide
> quoted text -
> >
> > - Show quoted text -
> >
>

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[android-developers] Re: what is the picture format for Picture.WriteToStream?

[Jerry Fan]

bump

On Thu, Jun 4, 2009 at 10:09 AM, jerryfan2000 wrote:

>
> Hi,
> What format of picture will I get by using Picture.WriteToStream?
> >
>

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[android-developers] Re: webView: How to click a web link and display in my WebView app

[Jerry Fan]

I got the answer by myself. If anyone is also interested to know how to do
it, please go to below URL for a tutorial.
http://developer.android.com/guide/tutorials/views/hello-webview.html

On Thu, May 14, 2009 at 8:01 AM, jerryfan2000 wrote:

>
> Hi,
> I am trying to add a webview in my app to display a web page. However,
> every time I click link on the web page, Browser will be launched to
> display content in that link. I understand it is something about
> intent but I am still wondering is there any simpler method to ask
> webview to display link content within its View ? Thanks.
> >
>

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