Is there any way to create triggers on different databases? my requirement is like:-
database: a1.db consist table: t1
database:a2.db consist table: t2
now i have to use trigger on t1 (whenever any delete and update operation) happens on t1 a value has to be inserted into t2. waiting for your feedback...
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I've made a few apps now, which use an SQLite database, no problems. In my latest app, I want two tables, and I just released that every example I can find only creates one table. So, is this a limitation? Must I use only one table? Assuming I can use two, how do I go about changing my create script?
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This is easily done on ContentProviders via ContentObservers. How do I do the same when iterating over local databases?
Lets say Im creating an Android app for a company that already provides some sort of online service. I want my android app to extend this online service and I want the app to interact with my remote databases, would I embed a web browser in my application or directly connect to my remote database from within my code? If I am directly connected to a database from within code and not through a web browser, would that be a security risk since the connection info would be distributed in the code?
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View 3 Replies View RelatedCan anyone tell me, is it possible to use the ADB to pull and push a database from an app, without root privileges on the phone? For example, I know the location on my rooted magic and dream is:
/data/data/com.xxxx.xxxx/databases/xxxx
I know that you can use ADB without root, but when trying to use the shell - you can't view that location without root privaliges. But I have been told you can use push and pull if you know the file you want? Basically I want to pull a database from MY app on a non rooted phone modify it and push it back on. Only trouble I have is, the two phones I have are both root and I don't have access to a non root one to try it out.
I want to know optimization techniques for databases that has nearly 80,000 records,
list of possibilities for optimizing
i am using for my mobile project in android platform
i use sqlite,i takes lot of time to retreive the data.
I have some external sqlite files I'd like to include with my app. It looks like I can add them to the /assets folder, then read them from there? Is the /assets folder the appropriate location for them?
I've used SQLiteOpenHelper to open databases my app creates at runtime, which just uses a unique db name. Will the sqlite files in the assets folder also be accessible using SQLiteOpenHelper in the same manner?
I'm trying this with my Nexus One.
I have the android SDK and have used the command
adb pull /data/data/com.myapp.android/databases C:pulls
but all I get is
pull: building file list...
0 files pulled. 0 files skipped.
Also, it seems no matter how much data I add to the tutorial NotePad app I installed, the data size for the app (as shown in Settings) never exceeds 8KB. How is this possible? Is there some other place where databases are stored? When I use the File Explorer view (that's part of ADT) in Eclipse, I see there's nothing in /data.
To add a twist, I have no trouble pulling any other files from the device. It's just databases I have trouble with.
Is there any tool that will allow me to browse databases on my Android device? Something like Sql Management Studio - you know GUI tool that displays databases, tables, row in tables, etc.
I'm using Eclipse for development (if it is important for plug-in suggestions).
Try to select (or update) from custom databases (for example mmssms.db) but on init I see " Unable to open the database file". Try send permissions in manifest <uses-permission android:name="android.permission.WRITE_SMS"/> <uses-permission android:name="android.permission.READ_SMS"/> but this doesn't help.
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Android includes a database engine (SQLite). In general, do the applications keep/manage their own databases (files) or is there a unifying database manager?
View 3 Replies View RelatedI've read the answer to a question as to how to access the contents of the databases, however I cannot seem to get it to work on my machine. Here is the shell log:
C:android-sdk-windows ools>adb -s emulator-5554 shell
# sqlite3 /data/data/com.android.demo.notepad2/databases/notes
sqlite3 /data/data/com.android.demo.notepad2/databases/notes
SQLite version 3.5.9
Enter ".help" for instructions
sqlite> .tables
.tables
sqlite> ^C
C:android-sdk-windows ools>
SQLite simply echos my commands back to me, even although the Eclipse file browser tells me it exists. If I use the sqlite3 tool and use ".tables" the commands are accepted.
Is the SQLite syntax different through the emulator is am I missing something?
I apologize if this is a stupid question, nevertheless I need to ask. I am new to Android development and have gone through every single tutorial and reference provided. I have been doing great, with the exception of one stupid problem; I cannot find where the databases for some apps are stored.
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I'm trying to work with a web service (that I have no control over) that returns a SQLite database when you query it. Is there any way to do this?
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I want to expose a portion of my app with an intent that will only display a simple dialog box for system setting. The only way I currently know how to do this is to have an activity that accepts an intent. In the activity I don't use setContentView. I only create and show the dialog. The activity is finished after you press OK from the dialog.
This is kind of okay, but the activity shows as a black backdrop under the dialog, until you press OK which brings you back to the last application. I'd like to just be able to show the dialog on top of the calling Activity. Any idea on how this can be done? CAN it be done?
how can i trigger in tread A a methode from thread B? the methode schould be than executetd in thread b. I want to manipulate within a thread A a View from Thread B, how can i do that?
View 3 Replies View RelatedCan anyone give a hint if you know why there are some ACTIONS that do not trigger their associated receivers when they are registered in the manifest while they are received when they are register through registerReceiver() ? For instance, when I declare: <receiver android:name=".MyReceiver"> <intent-filter> <action android:name= "android.intent .action .NEW_ OUTGOING_CALL" /></intent-filter> </receiver> if the application is NOT running My Receiver is never invoked. But now, if I register the intent from inside a service, MyReceiver is invoked properly
View 2 Replies View RelatedAndroid supports an event onLongPress. The question I have is 'how long' (in milliseconds) is the 'press' to trigger the event?
View 4 Replies View RelatedI have a simple overlay for a Google Map: http://pastebin.com/Rg8miMSh and I add/remove items on it depending on the zoom level. After removing/adding I call populate on the overlay and invalidate on the map view. Everything works just fine, except 1 glitch: after an item was removed, if I tap its location onTap is still triggered and because the OverlayItem is not there anymore i get java.lang.ArrayIndexOutOfBoundsException in com.google.android.maps.ItemizedOverlay.maskHelper(ItemizedOverlay.java: 562) (full stack trace - http://pastebin.com/KThn4ZLE )
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I have a layout that looks like this (some attributes removed for brevity)
<RelativeLayout>
<ImageButton
android:id="@+id/button"
android:nextFocusRight="@+id/gridview"/>
<GridView
android:id="@+id/gridview" />
</RelativeLayout>
When I navigate using the DPAD from the button to the gridview, the OnItemSelectedListener is not fired. However a new layout pass is perform. Why is this ? Is this an android bug & my bug?
If (in Android) I have an EditText box, how can I trigger an event when the user has finished entering data and hits return/Next?
I have tried using the code below but it seems to have no effect. I also get an 'The method onEditorAction(EditText, int, KeyEvent) from the type new extView.OnEditorActionListener(){} is never used locally' error.
myEditText.setOnEditorActionListener(new EditText.OnEditorActionListener() {
public boolean onEditorAction(EditText v, int actionId, KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_NEXT)}
I want to show the softkeyboard, but it does not work. Here is my code...
When i touch the screen, the softkeyboard does not appear, but the alertDialog "edit text" appears, which appears on normal edittexts when you long touch them.
This additional code in the onCreate has no affection:
InputMethodManager input = (InputMethodManager)
getSystemService(Context.INPUT_METHOD_SERVICE);
input.showSoftInput(myTextView, 0);
I read some stuff about SQLite databases to use them within my own application. so for this point, it should work.
BUT:
for most of my data stuff i need a database that i can directly put into my application. i read on stackoverflow that it's possible to put up to 1,2mb files in the assets folder and then copy them anywhere else to use them.
my question is:
is it possible to acces those databases in the assets folder directly to read from them? there's no need to insert data into this database, it's just a data storage to read from? is it possible? and if it is than how could i do this?