Is there a way that I can use my own database when creating an app?
What I mean by that is that I want the app to start with a database already loaded so one doesn't have to be created when the app is started?
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i have a church database which i want to create an App which contains all details in the database....with a search button to search the database...
View 3 Replies View RelatedI am new to android and I have a problem in creating a database.
public class database extends ListActivity {
/** Called when the activity is first created. */
private final String MY_DATABASE_NAME = "myCoolUserDB.db";
private final String MY_DATABASE_TABLE = "t_Users";
Context c;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ArrayList<String> results = new ArrayList<String>();
setContentView(R.layout.main);
SQLiteDatabase mydb=null;
try
{
mydb.openOrCreateDatabase(MY_DATABASE_NAME, null);
} catch(Exception e){}
}}
When I run this code it throws a run time exception.
I have started creating database for my application. It is working well. The data is also getting stored.But the issue is that i require dropping table, that already exists, every time i run the application.
But one thing i found is that whenever i change the version of the database in my code, the table gets dropped. But i would like to know whether it is possible to drop table without changing the version number of the database.
I want to create a SQLite database in my app, which contains three tables, I will add data into tables and will use them later on.but I like to keep database ,as if when app is first time installed it checks whether the database exist or not, if exists it updates it else if not then creates a new database.further more I am making a DB class to facilitate my app,so I wont be creating an activity for my database creation.if there are possible advices, please share with me
View 3 Replies View RelatedThe database of my application need to be filled with a lot of data, so during onCreate(), it's not only some create table sql instructions, there is a lot of inserts. The solution I chose is to store all this instructions in a sql file located in res/raw and which
is loaded with Resources.openRawResource(id).
It works well but I face to encoding issue, I have some accentuated caharacters in the sql file which appears bad in my application. This
my code to do this : Code...
The solution I found to avoid this is to load the sql instructions from a huge static final string instead of a file, and all accentuated characters appears well.
But Isn't there a more elegant way to load sql instructions than a big static final String attribute with all sql instructions?
How to create two or more tables in one database in single class which extends sqliteopenhelper in one function oncreate.
View 2 Replies View RelatedI am creating an app which allows for many different Activities to be started from a TabActivity(up to ~25). Most of the activities require data from the sqlite database, so when onCreate is run, an AsyncTask creates an SQLiteOpenHelper object(which will open a readable/writable database), runs a query, data is retrieved, and everything is then closed.
I was just testing messing around to see if i could break something, so i added every Activityto the TabActivity's TabHost. I then started mashing each tab as quickly as possible.
I noticed that very quickly i began to see in the LogCat: Caused by: android.database.sqlite.SQLiteException: database is locked: BEGIN EXCLUSIVE; and the app proceeded to die.
Typically there will only be about 4-6 tabs(i can just limit the user anyway) for the TabHost. I haven't been able to break anything with a small amount of tabs to mash, but i am still worried that maybe i am accessing the database in a poor way.
How can i prevent my SQLiteDatabase objects to cause a lock?
If i create a ContentProvider will that eliminate the possibility of database locking?
Do you have any suggestions for changes I could make for accessing data from an SQLiteDatabase?
I ended up taking the approach of using the Application class and storing 1 SQLiteOpenHelper and trying my best to keep it synchronized. This seems to be working great - i put all my 25 activities in the TabHost and mashed away on them with no errors.
I am calling ((SQLiteDbApplication)getApplication()).setDbHelper(new DBHelper(this, Constants.DB_NAME, null, Constants.DB_VERSION_CODE)); method(shown below) in every onCreate() in my activities
Any further suggestions to this approach or to the changes i made using this Application class?
CODE:...................
Is there something like a FileDialog available? From previous threads, it appears there isn't one.
If not, has someone written one?
I want to allow a user to
a) Specify a folder/filename on storage for creating an SQLite database.
b) Specify an existing file/folder on storage card for opening as an SQLite Database.
ive been looking for a week now i need some help connecting to a remote database...i want my app to get data out of the database and update the database.ive tried this http://www.helloandroid.com/tutorials/connecting-mysql-database but i dont understand it.
View 1 Replies View RelatedI'm trying to deploy an application with an existing SQLite database.I've been reading though the examples that are posted but they are always missing some part of the class. I feel like I'm trying to bake muffins but no one told me to use baking powder.Can someone post a full database helper class for depoying an SQLite database on Android? Edit : Delete old code because it doesn't work.
View 2 Replies View RelatedI'm currently developing a Field-Service application that stores data in the local sqlite database on an android device. At some point, usually after completing the data collection rounds, the local sqlite db is to be synchronized to a remote sybase db on the server.Any suggestions as to how this could be achieved or engineered as a solution? Or even better, are there alternatives to synchronizing data in such an application?
View 1 Replies View RelatedI want to build my own cloned databases of all or some of the Android native databases like Contacts, Calllogs, Mediastore, Settings, etc. I want to know wheher it is possible and How I can know the database schemas of these databases? Is there any documentation on this?
View 4 Replies View RelatedI an new to android development. I am trying to make a simple expression solver . (ie evaluate mathematical expressions such as "23+3*(24+5/7)". For that i need an editText field which takes numbers (0 to 9) symbols + , - , * , ^ , / , % , . and parenthesis symbols such as ')' and '(' . I think for this i have to create new InputType and a custom keyboard. how to go about (ie how to create new InputType and custom keyboard ).
View 2 Replies View RelatedI can't create a new APN in my phone. I own a samsung galaxay star GT-S5282.
I tried using giffgaff, but when i save the APN that giffgaff made, it isn't there. And I tried doing it manually too. It's not there when i press save.
I tried using APN backup and restore, and when i open the app, it says "Unfortunately APNs cannot be restored or deleted on this device because android 4.0+ does not allow 3rd party apps to write APN settings."
I already checked the unknown sources in settings>security>unknown sources.
I don't know what to do to create new APN.
I'm seemingly having problems creating the apk using an ant build for 1.5. It's building so I'm guessing the sdk pointer in local.properties is set correctly, but it seems to not be finding sun.security.x509.* (?).
I can see that jarutils.jar is in
CODE:...............
Here's the traceback spew...
release: [apkbuilder] Creating .Phresheez-unsigned.apk for release...
CODE:................
I'm developing an Android application and I'm very new on Java and Android. I want to create some constants to use in some activities. Where can I define these constants?
View 4 Replies View RelatedI have a "thirdparty.jar" which I have to add into my Eclipse project and make one combined JAR for my entire package. I have added the thirdparty.jar into my pproject using "Java Build Path" Libraries settings in eclipse. But when I try to make jar for my entire project, the jar creation for my project is success but the "thirdparty.jar" is not getting included in my project.jar.
View 2 Replies View RelatedI'm not sure if this needs to be in the Support/TroubleShooting section or in the All Things Root Section. Mods, feel free to move. Anyone know where I can get some detailed instructions for creating a SD Ext 4 partition? Is this something easy to do in Windows? I'm running Ubuntu mainly so if there are ways to do it in there that would be good too.
View 2 Replies View RelatedI am thinking about creating a 2D game for android. Kind of like the flash game "Age Of War" (just google it). Can I do it with just Java or do I also need openGL?
View 4 Replies View RelatedI'm sure this is simple, but I've got myself confused over it.I have an image resource, such as R.drawable.myimage, and I want to convert this into a URI.I tried:
Uri selectedImage = Uri.parse("android.resource://com.my.package/" + resourceId);
but this just returns a NullPointer. The resourceId needs to be dynamic (so I can pass any image to it), not just a hardcoded "myImage".Any help please?
Is there any way to create window on Android using C++.
View 2 Replies View RelatedLet's say I randomly generate a number 0 to 100. Where 0 is really cold and 100 is red hot. Wen the number hits, it would show an image bar (kind of like a % finished bar) that shows in the image what # you hit.
So it would kind of be like a progress bar from 0 to 100, and whatever # they hit it shows in the image of the bar in an imageview?
I'm starting a calendar app and I'm trying to figure out what the best way to create the layout is. I don't want to use the built in CalendarView as it's only in API >11 which limits the potential users too much.
I've toyed around with a GridView with and Adapter behind it. Truth be told I'm still figuring out how that one works, but it seems the most promising.I tried a nested LinearLayout of TextViews but that requires accessing each TextView be it's ID.
I have "Class Checkin's" Which have a max amount of people who can be checked in. So on my application I have the Class Time and under each of these class times, I want to have a horizontal progress bar that adds one to the bar each time someone checks in (On my web application I am using jquery .progressbar).
Currently I have the following:
HTML Code:
private void createProgressBar(ArrayList<Integer> array, Integer maxProgress){
View BoxProgressLayout = findViewById(R.id.BoxProgress);
Iterator<Integer> iterator = array.iterator();
while(iterator.hasNext()) {
ProgressDialog progressBar = new ProgressDialog(BoxProgressLayout.getContext());
progressBar.setCancelable(false);
progressBar.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressBar.setProgress(0);
progressBar.setMax(maxProgress);
progressBar.show();
}
}
In order to add the progress bar to my Progress layout. But the progress bar doesn't appear on the page. Is this the best way to go about this? or am I going to have to draw my own progress bar that increments and fills by a percentage each time someone checks in.
i am creating an app similar to navigator, only that it is not restricted to US only,
now, it works as follows
1) user speaks the destination location, which is converted to text, sent to google maps for processing
2) google maps calculates route between current location and destination location, sends back the route, in text form
3) this text is converted back to speech using text to speech converter, issued to user
till now, i have set up the sdk,adk,eclipse and adt, enabled google maps after getting the key from google using keytool, have the working code for text to speech converter, and i can get my current location(of emulator) using coordinated sent by eclipse.
Thing is, how do i integrate all thees independent modules?
I am working on mapactivity for googlemaps api. I created options menu which includes 5 different menu items. What I need is whenever I click on each of the menu item it should open another menu may be something similar to contextual action mode which should contain some views like button and a text editfield. I need to enter address in edit field and button to click on GO which should thereby locate the address on the map.
What I did is, in OnOptionsItemSelected() I am passing setcontentview with new ref.id(xyz.xml) which contains edittext and button. But I am not able to pass button.setonclicklistener() after that. The application gets crashed running this peace of code.
I think this is a wrong way of doing but I didn't find any other way to get the options with edit and button. I am working on java.
Where would one begin to create an Android rom? I have looked at a couple of tutorials but they all require me to download some application that is not open source and only has binaries for Windows.
View 2 Replies View RelatedI put together a ROM with the kitchen and did the major theming through the actual ROM and plan to backup fully when done and then run the backup through the kitchen.
Nexus One using XDA
I'm creating a menu in XML using the eclipse software.Unfortunately, I'm no expert in XML but I have attempted to create a basic menu.
The issue I'm having is the alignment of the menu buttons. The buttons on the left column are smaller in width compared to the buttons in the right column. I know this may not seem much of an issue now, but the problem is made worse if I edit the text value of the buttons.
I want to achieve even distribution for both columns of buttons but I have been scratching my head trying to figure this one out!
find below an image describing my program and the code:
Code:
<TableLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<TableRow android:background="#FFFFFF">
[code]....