Android :: Best Practice For Static Headers And Footers

Apr 11, 2009

I am trying to display a high score table in my application and wanted to know the Best Practice for displaying static headers or footers. The data for the High Score tableis a REST web service returing up to 100 JSON records. I have looked at some of the previous posts http://groups.google.com/group/android-developers/browse_thread/threa. that talk about addHeaderView() & addFooterView() but they all seem to indicate that the footer or header will scroll off the screen. My 1st question is has someone been able to implement this in a clean way to allow a basic static header or footer. My second question is is their another way I could accomplish my goal of displaying my high score table besides a List View. I will be displaying 6 columns of data which will need to scroll vertically.

Android :: Best Practice for Static Headers and Footers


NDK - Using Static Libraries Don't Find Headers

Jan 4, 2011

There's another two simpler questions at the end of this post, I want to know those too.i'm wrapping a native API to Android by NDK.But when building it don't find the header files.I have the following structure.

<project>/jni
Android.mk

Code:
LOCAL_PATH := $(call my-dir)
include $(call all-subdir-makefiles)
LOCAL_PATH :=/home/marcos/dev/workspace/rmsdk.native.wraper/jni
include $(CLEAR_VARS)
LOCAL_LDLIBS := -llog
LOCAL_MODULE := ndk1
LOCAL_SRC_FILES := native.c DelegateDRMProcessorClient.cpp
LOCAL_STATIC_LIBRARY := adept cryptopenssl dp expat fonts hobbes jpeg mschema png t3 xml zlib
[code]....

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Android : Apply Layout Format To Footers?

Apr 3, 2010

In an Android ListActivity, I am adding a button as a footer in a ListView. How can I apply layout formatting to this button?

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Android :: Call Non Static Method In Static SQLiteDatabase Class

Mar 30, 2010

i want to display a msg to the user (msg box or Toast) when exception happend in a static SQLite Database class that i use. the problem is that i cant call a non static method in a static class , how can i handle this. this is the class

private static SQLiteDatabase getDatabase(Context aContext) {

and i want to add something like this in the class when exception happen but context generates the problem of reference to non static in static class.

Context context = getApplicationContext();
CharSequence text = "Hello toast!";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, text, duration);
toast.show();

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Android :: Cannot Make Static Reference To Anon-static Method

Feb 7, 2010

I'm having some issues with the old "Cannot make a static reference to a non-static method" error in my Android program. I am creating a sand falling game (similar to the Powder Game) and I created a class called Control to create a Control Bar at the bottom of the screen with a slider for brush size (that works fine) and a button to pop up a Dialog to allow users to pick the selected element. However, when I call DemoActivity.showDialog(2) from my code, it gives the static reference to non-static error (DemoActivity is the main activity of my application). I also tried changing it to just Activity.showDialog(2), but I got exactly the same error!

Here's my code:

CODE:................

I fixed it by adding the following to my Control.java code:

CODE:..........

And then calling control.setActivity(this); from my onResume section of DemoActivity.java!

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Android :: Non-static Method Cannot Be Referenced From A Static Context

May 26, 2010

I am modifying the source code here: http://thinkandroid.wordpress.com/2009/12/30/getting-response-body-of-httpresponse/

I get this error:

code:.............

This error is line 13 on the second box.

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Replace Single Row View In Custom STATIC ListView - STATIC Data

Mar 18, 2013

I have Eclipse Juno and I'm working on an app with that.

The main activity will have a scrollable menu that takes you to all the other activities.

So the general structure/outline right now:[HIGH]Relative Layout ImageView (header logo type thing) ListView (the actual scrollable menu)[/HIGH]Here's the problem though... I can't find any simple list tutorials. I can easily make a single line list work but I need to make a two line list and one that is static, not dynamic and no examples are out there for that. It's like if you want to make a 2 line list, you can only learn how to do it in the most code-heavy ridiculous way possible.

Essentially what I am looking for with the list is this: Item one: Centred, bold, non selectable title (Resources)

- Item two-??: two line list items, click-able to a new activity, title of the section on first line, description on the second line.

- Item ??: Centred, bold, non selectable title (Tools)

- Item ??-??: two line list items, click-able to a new activity, title of the section on first line, description on the second line.

Nothing dynamic that is ever going to change, no super complex wonkey calculations, just to simply have the data set in stone (preferably via XML) and to call it into the list.

I experimented with some of the other list views and no matter what I did, I could get, via editing the resources and NOT using Java, more that one item on a single line but it wouldn't format it properly according to the layout I guess because I haven't got the ID correct or whatever I don't know.

I mean, all the examples I've seen for a 2 line list are extraordinarily over-coded and just bloated. I mean I have a website I am still working on in C#/ASP.net that has far more complex things in it with half the code that I've seen for the examples of the two line lists.

I tried on my own to figure it out (I am decent with C# and vaguely familiar with Java, self taught, and programming for some other systems like Python, again all self-taught), but like ALL coding references, they're organised by the actual code you implement (that you don't know) instead of by what you want it to do (so you have to search the whole code base to find something that you don't know what it's called but know what it does). >:C

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Android :: Static Vs Non-static Inner Classes

Mar 9, 2009

I have been finding it convenient to extend Handler in many of my activities to handle messages specific to the activity. The handler sublass is an inner class of the activity and needs to access its state. I am wondering if there is any performance difference between making the handler subclass static and passing in the activity explicitly in its constructor or making the subclass an "instance class" and letting the vm worry about my accessing members of the containing activity.

The static approach:

CODE:.............................

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Android :: Add Headers To A Listview

Oct 10, 2009

What is the easiest way to add headers to a listview (and my list has multiple adapters (sections) so I need to show multiple headers for my list!

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Android :: App To Download Only Email Headers

Feb 13, 2010

I'm looking for an app to download only the email headers with (or without, but better with) the possibility to download the whole mail.

The reason is to be able to take a quick look to all af them, avoiding wasting time of downloading when some friend has just the happy idea of sending you a heavy power point, or the pictures from your last party, or just simple spam.

I must say that there's another not less important reason: I don't have a 3G flat rate.

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Android :: How To Generate A ListView With Headers?

Mar 6, 2010

I want to generate a Listview that has some dividers between some of the entries, like it can be seen in some of the property sections. See the example below. I try to generate a List that consists of some textviews followed by one of the fancy dividers explaining the next part of the list and then again some text views. How can this be done? I thought about creating different views to add to the list? Is this the way to go?

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Android :: Sending Custom Headers In WebView

Mar 12, 2010

I've found some information about this topic, but I was curious as to whether anyone has had any success loading webpages in a WebView with custom headers. There doesn't seem to be any simple way of doing this. I've seen an implementation that involved downloading the webpage and separately loading the data into the WebView. While this is not difficult, the WebView then demonstrated problems with relative URLs and downloading images.

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Android :: Excel Like Vertical And Horizontal Headers

Apr 7, 2010

It means, that it has vertical headers (fixed horizontally), which can be scrolled vertically, and horizontal headers (fixed vertically), which can be scrolled horizontally. The contents should be scrollable both vertically and horizontally. To make it clear, I tried to 'draw' here...........

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Android :: Adding Section Headers For My ListView

Sep 6, 2010

I'm adding section headers for my listView, there are few methods on the web. Since I'm using simpleCursorAdapter to manage my listView, I adopted phil bogle's method. http://thebogles.com/blog/2010/02/section-headers-for-android-listviews/

The error occurred at this part of the code:

CODE:.................

This is the LogCat shows how they compare while I scroll up the list:

CODE:..............

The correct output should be:
Sun, 05 Sep 2010
112
120

But when I scroll up, the setViewValue calls 120 first and compare with preDate(show above), it becomes:
Sun, 05 Sep 2010
112
Sun, 05 Sep 2010
120

So how can I make the section headers fixed after creating the headers? Why setViewBinder been called while scrolling?

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Android :: Possible To Set Custom HTTP Headers In WebView?

Jan 5, 2010

I have to access a web page from within my application and, in order to have access to it, I need to set some custom HTTP headers. I want to use the WebViewclass in my activity but, as far as I can tell, it's not possible to set custom HTTP headers.

So is there a way of using the existing web browser (or WebView) with custom HTTP headers? My application targets Android 1.6.

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Android :: Php Headers For .apk File Not Working When Downloading On Phone

Jul 29, 2010

I am trying to download an Android APK file that is output by a php page. I have the following and it works on firefox but not on the phone. Firefox downloads with an apk extension but has a little firefox icon next to it. The phone downloads the file with a .html extension, why is this?

UPDATE: Full source

function display($tpl = null) {
//SETUP
$appId = JRequest::getInt('id', '0');
$model = &$this->getModel();

$app = $model->getApplication($appId);.................

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Android :: Scrollable Table Layout & Column Headers

Aug 3, 2010

I am trying to create a basic datasheet in my application using a TableLayout. The first row contains the titles of each column. Every row thereafter is data. I would like the data to be scrollable while keeping the first title row visible (i.e. the first row would not scroll with the rest).I have tried something like the following (unsuccessfully)

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Android :: Access Http Response Headers In WebView?

Jun 28, 2010

Is there a way to view the http response headers in an Activity once a web page has been loaded in a WebView? Seems like this should be possible, but I can't find any methods that expose the headers.

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Android :: ListActivity And Headers Giving Odd Side Effect

Dec 28, 2009

I'm getting some odd side effects when I set a header to my ListActivities. The ListActivity actually allows you to scroll up "behind" the header and click...which sends my app into a fit of errors b/c my Lists are connected to a Cursor and selecting behind the header returns a value of -1. Ive noticed this doesnt happen to any of my Lists that dont have headers.

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Android :: Static Method In Java Accept Only Final Or Non Final Variables Within Its Method - But Not Static

Sep 15, 2010

Why should a static method in java accept only final or non final variables within its method, but not static?

For example I have the following method:

CODE:.................

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Android :: Adding Headers To Listview For Cursor With Grouped Results

Jul 30, 2010

Requirement: Display query results in a list with a header view atop each group. (results grouped from database) Looking at Mark's MergeAdapter. Wondering if I might be able to use a single cursor and have each adapter filter on the group field? That a viable approach?

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Android :: Send HTTP Basic Authentication Headers In Droid?

Nov 22, 2010

I am not sure how to send HTTP Auth headers.

I have the following HttpClient to get requests, but not sure how I can send requests? code...

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Android :: Adjust Height Of Group Headers In An ExpandableListView Dynamically?

Oct 7, 2010

I have an ExpandableListView (ELV) with the groups having LinearLayout. I have set the height of the group to some value (38dip in this case, equivalent to two lines of text). If the group heading is long and would take more than 2 lines, it is not shown properly in the ELV item - some part of the view gets scrolled. On the other hand, if I change android:layout_height to "wrap_content" in the LinearLayout, the groups always show all the lines. But the line widths are variable, i.e., short titles show up with only 1 line and long titles show up with 2, 3 or 4 lines. That looks ugly. I would like to implement the height to be something like max("38dip", "wrap_content"). Is there a way to do this?

Even programmatically, I do not seem to be getting the actual height of the group if I set android:layout_height to "wrap_content". Any suggestions there?

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Samsung Galaxy S :: Set Up Email For Headers Only

Sep 17, 2010

Is there a way to set up the email client to download only the message headers? I don't want to wait to download all my messages. Plus, I receive a lot of fun mail and I don't want to download it on my SGS. I just want to know what messages I have received and select the ones that I want.

My company mail doesn't support IMAP or exchange

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Android :: Best Practice For Changing Min SDK Version?

Aug 2, 2010

I have a sizable install base already on some apps with Android 1.5 set as the minimum version. I want to update the apps to take advantage of some of the newer features offered in Android 2.0 and greater. What is the best way forward so I don't break things for my current 1.5 and 1.6 users?

If I simply update the application with a new min SDK version, will 1.5 and 1.6 users be prompted to uninstall? Or will they just not see the update? What about future development that I want to apply for everyone, say a bugfix. Will I have painted myself into a corner? Another solution would be to fork and create a new app for 2.0 users, but that is undesirable for several reasons.

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Android :: Uninstalling Apps Best Practice

Jun 23, 2010

I have had my Desire no for almost 2 months, and like most I have tried installing and uninstalling many apps, to see what I like.Due to doing a factory reset on my phone yesterday I have layered back all the apps I was using and have noticed that I have used considerably less memory than before, making me very suspicious of the uninstall method used within the market place.Does it leave behind pieces of the app, and if so what's the cleanest method of uninstalling apps.

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Android :: Best Practice For P2P Handset Networking

Dec 4, 2009

I've been scouring the web looking for information on setting up a peer-to-peer connection between Android handsets and so far have drawn a blank. The only thing I can definitively seem to work out is that it was made a whole lot more difficult when XMPP was removed from 1.0. Apart from that, I find a couple of threads on an OpenIntents board about porting an XMPP implementation to Android that were last posted nearly 2 years ago. Has anybody solved this problem effectively? What's the best way of doing it (from a games point of view)?

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Android :: Best Practice For Implementing Watchdog

Sep 17, 2009

I'm writing an application where real-time knowledge of the GPS state is critical to convey to the user. I request GPS updates at 1000 ms intervals -- when I haven't received another update 1500 ms past the most recent update, I want to display a yellow icon, and 5000 ms after the most recent update I want to display a red icon. Currently, I'm doing it like this: private CountDownTimer gpstimeout; public void onLocationChanged(Location location) { if (gpstimeout != null) gpstimeout.cancel(); gpstimeout = new CountDownTimer(5000, 1500) { public void onTick(long m) { setYellow(); } public void onFinish() { setRed(); } }; gpstimeout.start(); }

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Android :: Best Practice With SQLite And Phone

Mar 22, 2010

What is considered "best practice" when executing queries on a SQLite db within an Android app? Is it safe to run inserts, deletes and select queries from an AsyncTask's doInBackground ? Or should I use the UI Thread? I suppose that db queries can be "heavy" and should not use the UI thread as it can lock up the app - resulting in an ANR. If I have several AsyncTasks, should they share a connection or should they open a connection each?

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Android :: Best Practice To Pull Content From Web?

Sep 29, 2010

I'm new to developing Android applications, and have only a little experience with Java in school. I was redirected to StackOverflow from the Google groups page when I was looking for the Android Beginners group. I have a question about what is best practice to pull content from a web source and parse it. Firstly, I would eventually like to have my application threaded (by use of Handler?), however, my issue now is that the class I have created (Server) to connect and fetch content often fails to retrieve the content, which causes my JSON parser class (JSONParser) to fail, and my View to display nothing. After navigating to the previous Activity, and attempting to call the connect(), fetch(), and parse() methods on the same remote URI, it will work. Why does this (sometimes retrieve the remote data) happen sometimes, but not always? What is the best practice, including the use of ProgressDialog and the internal Handler class, to make my application seemless to the user. Is this the best place to ask this question?

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