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I have reverse engineered an app (Settings.apk)
all i want to do is,
I want to make a SwitchPreference, on my case that i wanted to create a switch selector that will turn off / turn on double tap to wake for my device (i added it because that feature was absent, but anyway my device supports the feature)
here is my xml, i created the SwitchPreference on the accesibilty section of Settings app
here
I also created a ListPreference in the xml, i want to create a list selector that was in purpose of choosing the CPU freq & I/O Scheduler. I have also done doing it but it doesn't work as it intended to be.
the ListPreference's xml code is also on accesibility xml . What should i add to make both of them functional?
notice me if my question was offtop,
thank you.
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I understand we can do this with file input and output, but why would we want to do this?
It is simply called persistence.
You nailed it: you want to be able to store information (for example after intensive computations) in a way that survives the lifetime of the current JVM process.
In that sense serialization is a (poor) version of database storage.
But of course, that comment is correct: this does not prevent the creation of objects. It is a mechanism to resurrect previous state into "new" objects.
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My question is this that i want to make an invice or we can say bill for our customer , so that now i want to make an invice that has a special style it mean customer logos,address
like this and then i want to print it directly by printer devices so plz can anyone help me .
I use netbeas 8 IDE .
You could create a report, using iReport, and send data to fill it. All data can be organized in a model report, like images, grid (sub-report) with monetary values, bar-codes, etc...
http://community.jaspersoft.com/wiki/ireport-designer-tutorials-help
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I use CursorLoader to show data in my recycler view. I also need provide delete and update item feature. What is the best solution to delete and update items in database? Now I use simple AsyncTask.
Update
The best solution is to use AsyncQueryHandler?
According to the guidelines it depends. If you want your app to sync with the server after a certain period of time(2-24hrs), use SyncAdapter. If you dont need to sync, use service or intentservice.
AsyncTask not the best option, the latest "efficient" apps nolonger use it
The main problem with the asyncTask is that its lifetime is tied to the activity. So if your app is doing a background process like inserting new data into the DB and the activity closes or the user presses the back button, the process may be terminated before completion
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I want to create an app that starts up and has five EditText boxes to input five lessons. I then want to save these 5 EditText boxes in one place to then access from all activities when needed, eg. for setting TextViews. How would I create this single set of the five strings, would they be saved in their own class?
There are a few ways you can achieve that, some of which are:
Use SharedPrefrences
Use Sqlite database - a bit more complex solution.
Extend the application class which is available to all activities.
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The schema for the XML file is changing and i need to create a utility that will take the xml file in format A and convert it to format B. How can i do it.
I am not able to figure out the starting point for it.
You will probably want to look into XSLT. You can write one for each iteration of changes, which hopefully you, or whoever is changing the XML, is versioning each change. If that is the case, you will easily be able to transform each version into the next.
On the chance that you do not have versions available to you for the XML, then you will probably have to do very strict matching on your XSLTs.