Android :: Can Execute String As Code
Aug 24, 2010
So basically I would like my app to read info from a database, this info would be a string that is valid java code. Once read, I would like my app to execute this string as if it were code. Is there any functionality packaged with the android sdk that supports this?
Essentially I want the phone to populate some data with information queried from a database. One of these pieces of information would be a statement like: "return data.ZombieKillTotal >= 100000;"
Which would be used inside a statement like:
CODE:......
I just don't know what to use for 'ExecStringAsCode':
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Oct 28, 2009
I want to get an array of strings reading from arrays.xml file we add in android values/ folder. Could any one kindly give a solution for this. Otherwise I will have to input each these entries in strings.xml and take them to java code using getResources()getString()
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Feb 7, 2012
i want to develop a android application named letC ,the main moto of the app is the user has to write c code and has to execute with in the application.
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Nov 18, 2009
I would like to know how to execute code before exiting application. My application is composed of several activities. When the user starts the application (from the launcher menu or from a notification in the status bar), he goes in an InitActivity where I process some initializations. From user experience, application always restarts. One of these initializations is to init a network manager and start a thread that periodically sends a network request to notify a server that application is active.
I need to process some end operations, like stopping this thread when user quits application, for example by pressing the HOME key or BACK key when he's in the root activity. However, when the user press the HOME key, application is still running in background.
Q1 : is it possible to execute code when exiting application (I see the onTerminate() method of the class Application but it seems not to be always called)?
Q2 : Is it possible to force application exit (activity method finish () only destroy the current activity, not the application)?
Q3 : Is it possible to handle HOME key press (onKeyDown() is not called when this button is pushed)?
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Jul 15, 2010
Are Activities in the background considered "running" (and can execute code) or are they in a suspended state?
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Jul 29, 2010
I'm trying to execute code from Android's help page, but it doesn't work for me:
CODE:..........
When I execute task, doInBackground is invoked fine, but onPostExecute is never invoked. Tested on Milestone with 2.1 OS
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Oct 1, 2010
<string name="title_new">Yeni Kamera</string>
I have this string in string.xml,
public void SetTitle(String _title) {
title.setText(_title);
}
And title is a TextView.. I want to take string for _title, how can I do?
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Sep 27, 2010
I have a problem in converting base64 string to bitmap in android. I am using the camera to fetch the image and i am convert the image to base64 string to post to the server. I want to show that image in the imageview so how can i show the image in the ImageView after fetching the image from the camera.
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Jul 28, 2010
I have 2 String Operations I would need relevant in Object C // Get the newstring from mystring start at counter Java: newstring = mystring.substring(counter) OBJ-C: ? // Get the position from searchstring in mystring Java: startpos = mystring.indexOf(searchstring) ObJ-C: ?
I had two other questions and found now the solution (here als for others)
CODE:.................................
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Sep 29, 2010
I am having problem while passing string argument using javascript injection in my android application..
I am using the code...
, but m not getting the exact output..
I want to connect my login form (locally created) with website, so that whenever user enter userID & password in my login form, it automatically get added to that website login form..
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Jun 29, 2010
I have the localized strings file that is used in the Iphone app that I work on to port to Android. Are there any tools that go through the file taken from the xcode project and build the xml needed to use the strings in android? This tool should be easy to build but I appreciate any pointers to already working tools.
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Oct 1, 2010
In Android, capturing date from datepicker and storing as string in sqlite. Sorting by date doesn't work because they're strings (unless I'm doing it wrong.I've googled this issue for ~5 days, and it looks like there should be a way to capture the date from the date picker, convert it to a Long, store it in sqlite as a Long, select and sort on the Long date value, then convert the Long back to a "mm/dd/yyyy" string for display. I've tried various combinations of parse statements, Date, FormatDate, etc. with no luck at all.On activity start, get today's date and display it in button which calls the datepicker.Capture new date from datepicker (if one is entered), save it as a long to sqlite.On opening an activity showing a listview of records, select from sqlite with orderby on date (Long), convert Long to "mm/dd/yyyy" string for display in ListView.
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May 5, 2009
If there's anyway way I to access the String values of String resources statically? e.g. a static equivalent of Context.getString(...)?
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Nov 12, 2010
I have preferences where you can enable/disable what items will show up on the menu. There are 17 items. I made a string array in values/arrays.xml with titles for each of these 17 items.
I have preferences.xml which has the layout for my preferences file, and I would like to reference a single item from the string array to use as the title.
In the Android developer reference, I see how I can reference a single string with XML, but now how I can reference a string from an array resource in XML.
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Aug 4, 2010
Can anybody give me some clue that how to convert binary string into a string(english). I have tried and googled so much but couldn't find an answer.
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Jul 27, 2010
I have a class that creates a view to gather data via a function getView() that provides a view with an EditText.This class has also has variable answer.When the user chances the EditText I want to store the content of the EditText in answer.If I would use an onKeyListener I fear that the answer will probably get stored before the last letter is entered.Is there a good way to handle this in the getView() function via some other listener?
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Nov 11, 2010
I have made a service which extends Service in android, and running in the background of my android app. What I want from this background service is to get the euro to dollar exchange rate from a finance website, I have my service ready, it can periodically run a function, I am now need to implement the function to get the euro-dollar rate from a website, there are many this kind of website, my question is, how can I get the currency rate as a string from the website, and pass the string to my service?
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Aug 26, 2010
I have an Android app where I want to check to see if an app name that is installed matches a string passed to the function containing this code.Assuming you called checkInstalledApp('SetCPU'); and the app name on the phone is called the same thing it should return true. However, it never does. I logged the results and it should match up but it does not. Can anyone please enlighten me as to why this doesn't work?
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Nov 16, 2010
Does anyone have any idea how to find the n-th field (string) in a delimited string where the delimiters (separator) could be either a single char or several chars.and the syntax for user-defined function is FindNthField(string,separator,position)so position 3 would return three,The separator in use would actually be Chr(13).This has to run on Android and so should be efficient.
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Sep 7, 2010
Is it possible to have a string value in string.xml of the sort " some string PLACEHOLDER1 some more string" so that the place holders can be assigned the value at run time.
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Aug 19, 2010
I have installed Power Strip, and the very first time I was asked to use my preferred home screen, I selected the existing one (using a GS).
What I want to do is to have Power String dock displayed if I do a double click on the home key. I played with the settings but it seems that it doesn't work. Any hint?
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Aug 31, 2009
Of course i don't know google's plan. i just hope it. through emulation though.
how about android-sdk for chrome application? the idea is just recompiling to make execution file for google chrome os.
how about the sdk for windows? it's for windows platform.
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Jan 12, 2010
I do a ((Context)thingy).bindService(...) from within the onCreate callback of an Activity. I've observed that the onServiceConnected() callback of my associated Service Connection does not execute immediately, but rather, is delayed until after the Activity resumes, or more precisely, after return from the onResume() callback of the Activity. I discovered this the hard way (through a null pointer exception) because I was unable to use the Service (I call a method in the Service to start a Thread) immediately upon return from the bindService () call.
I assume this is normal behavior, but I don't understand why, and I further assume that there is a good reason for it and that I would benefit from understanding it. I'm guessing that maybe the Service isn't eligible to run because there are fewer than 1 processes bound that are in an active state.(?) But once it starts, if I then start the Thread within, it continues to completion of its task, even if the Activity calls unbindService() and terminates first! I don't mind that behavior (it's what I want to happen), but I want to know whether I can generally rely on it. I'm seeking some wisdom from the forum. Please help me clear my fog on all these points.
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Sep 1, 2010
There is a user input then on submit pass the search keywords to the db server and return the results (the db server has to be external by the way). Could i pass the search query to server side (php) and get the php script to execute the queries and return the scripts output?
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Jun 1, 2009
I would like to execute opcodes directly against the running Dalvik VM instance from within my application on Android. I'm looking for something similar to the C asm function. I have a list of opcodes for dalvik, but I am unfamiliar with how to either execute them directly, or write them out to .class files and execute them against some sort of VM CLI command like dalvikvm from within a running application.
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Nov 3, 2009
I've been doing Android application development for Android 1.5 on Debian etch (4.0), and things were going okay. I then tried upgrading the SDK to support more recent platforms. The problem is that the vast majority of the tools that are executables (I'm not counting shell scripts) seem to now depend on glibc >= 2.4. When trying to execute them, or passing them to ldd, I get an error like:
./aapt: /lib/tls/i686/cmov/libc.so.6: version `GLIBC_2.4' not found (required by ./aapt)
On Debian, the file /lib/tls/i686/cmov/libc.so.6 is provided by the libc6-i686 package, which on etch is version 2.3.6.ds1-13etch7, but on lenny I see that the version has increased to 2.7-18.
I can think of a few workarounds: - Copy the required libraries from a supported platform and point to them with LD_LIBRARY_PATH when using the affected executables. - Download the sources for the tools (e.g. http://android.git.kernel.org/?p=platform/frameworks/base.git;a=tree;...) and build my own local versions for Debian etch. - Give up using Debian etch and switch to another platform.
All of these are potentially viable alternatives for me, so this isn't a show stopper, and indeed http://developer.android.com/sdk/requirements.html says that it's only tested for GNU/Linux on Ubuntu Hardy Heron, which uses version 2.7-10ubuntu5. Nevertheless, it's somewhat annoying, and I'm wondering if anyone has any thoughts, or if the Android team even knows of the issue. I'm guessing that sometime in the transition from 1.5 to 1.6, they switched from an earlier Ubuntu version (I have to go back to Dapper, which uses 2.3.6-0ubuntu20.5, to find a pre-2.4 version) to Hardy, and this was just a side effect. But I'd be surprised if there was anything specific in the source that really required libc 2.4, and it's possible that if they were just building with an appropriate compiler flag that backwards compatibility could be maintained.
This affects all platform-specific tools for platforms >= android-1.6 (so aapt, aidl, and dexdump), and it affects all platform-agnostic tools (except for hprof-conf and mksdcard; so adb, dmtracedump, emulator, sqlite3, and zipalign) installed with the new modular sdk download (android-sdk_r3-linux.tgz) available starting in the android 1.6 timeframe (the corresponding tools from the android 1.5 timeframe in the monolithic SDK download of android-sdk-linux_x86-1.5_r3.zip work fine).
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Jul 28, 2010
I have a service MyService.java in Application "ServiceDemo". The manifest of this application looks like this
CODE:.............
I have another application "CallerService" manifest looks like this
CODE:................
I have an activity from where I m trying to start the service on the click of the button
CODE:................
This fails to work. Says "unable to start service intent"
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Feb 9, 2009
I need to customize the launcher application. I built it from the android source, and installed it to the emulator successfully(By renaming its package name to solve signing conflicts). When I tried to run my build, an exception occurred, and I can't find where it actually from because it seems to be from an internal thread.After an whole day trying, I found that the exception is thrown by the line in Launcher.java possibly: setContentView(R.layout.launcher)Does anyone have any suggestion?
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Apr 2, 2013
I need to execute following command in my app.
command: echo "1" > /sys/manager0/enable
I tried this with following code in my app.
Process p = Runtime.getRuntime().exec("su");
DataOutputStream stdin = new DataOutputStream(p.getOutputStream());
String cmd = "echo "1" /sys/manager0/enable";
stdin.writeBytes(cmd+"
");
There is no error and app executed perfectly but there is no change in the /sys/manager0/enable
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Apr 4, 2010
I have a problem with my application. During the execution of it, I have some buttons which execute other activities when I click on them. The way I am realising it is:
private OnClickListener scaleImage = new OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(main.this, Scale.class); startActivity(intent);
update(); }
};
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