Android :: Check If Droid Can Handle PDF
May 6, 2010
I know Android cannot handle PDFs natively. However, the Nexus One (and possibly other phones) come pre-Installed with QuickOffice Viewer. How would I determine whether the user has a PDF viewer installed?
Currently, the code to start the PDF download looks pretty simple:
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse(url));
startActivity(intent);
After the download, the user clicks on the downloaded file to invoke the viewer.
However, if there is no PDF viewer, Android reports "Cannot download. The content is not supported on the phone."
I want to determine if the user will get this message, and if so, direct them to PDF apps in the Android Market.
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May 21, 2009
I've got the following row xml file which consists of CheckboxView and TextView;
CODE:............
When the app run, i'm unable to "tick" any of the check boxes...
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Jun 8, 2010
I have just gotten my first Android based device, the HTC Droid Incredible.
I am not new to the world of smartphones (I have owned a Blackberry and have worked on many other Blackberries), but I am new to the whole world of Android.
I really do like it so far, but I have a question...
How does Android handle data? What I mean by this question is this: Does Android use a store and forward approach to sending data (emails)? Or does it send it out and if it doesn't have a good connection, it will just fail out, never to try again?
And based on the fact that it uses data, I also assume that it will never lose it's data connection even though a cell phone tower might be buried under voice calls?
The reason I ask this is because during 9/11, many people's cell phones could not make or receive calls but those who had some of the first Blackberries were able to send and receive emails just fine due to the store and forward approach.
Also, another reason is that this device will be used in a SHTF type of situation due to it's capabilities and I want to make sure that it will work with data (sending emails), although I may not be able to make voice calls with it.
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Dec 3, 2009
I have as a lot a people troubles with the new ContactsContract class.
My problem is like in 1.5 and 1.6 devices, we can add a key to a contact with the Contacts.People.Extensions class. But now there is a problem with this content provider.. It's unknown by new devices. And it's the only provider who does not work. Does someone know why is it not working anymore ? And is there a new way to put some extensions for contacts ( with the ContactContract class maybe?
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Jun 29, 2010
Does anybody know if there is any event to handle incoming calls?? I'm developing an app that streams audio from the microphone and I would like to have a listener that stops the recording, etc when there is an incoming call...and that restarts the process when the telephone call is over.
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Jun 24, 2010
Is there any DOM event in Webkit associated to trackball events (movement and pressing)?
Or is there any other way to handle those events from a webpage?
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Mar 16, 2010
I'm thinking about using a ViewFlipper for an Wizard like Activity. But I see one problem with this approach. The back button. Will the back button go back to the last shown activity or will the the Viewflipper somehow catch the back button event and only change to the last shown activity?
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Aug 22, 2010
I have an onKeyDown event which is only needed for handling the Up and Down hardware keys in my app. For these it returns true, as they are handled. For anything else it returns false which I understand means that the OS should handle them. However, when I press the Back button, my onKeyDown is called and returns false, but there is no other effect. I want/would expect the OS to finish the current Activity and resume the previous one.
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Sep 13, 2010
I have numerous activites in my Android app., and most should contain the same, relatively complex set of UI widgets on the screen's top area (lets say that its a kind of toolbar that you can find on most screens).
Right now, every screen's layout contains the markup for this toolbar, along with its logic inside every Activity's source, so it's damn redundant. Could you recommend a more efficient / less redunant way to do this?
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Oct 29, 2010
I'm working on an open source project for android and am wondering whether there are any best practices (or at least well-argued hints) on how to manage the private key for signing the APKs.
On the one hand, the key should be secured, on the other hand, at least the members of the core team should be able to create "official" releases.
My first suggestion was to just distribute the encrypted private key in the source repository and give out the passphrase to committers, but the trust (from the community to the individual) cannot be revoked.
Is there any other way to share the signing rights (e.g. by setting up a private CA and creating keys for each committer) among the members?
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Sep 2, 2010
Check for system updates doesn't check.
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Nov 12, 2010
Suppose I have something like an alarm activity which launches the alarm through the lock screen, accomplished via
getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
Now, from here I could press the back button to kill the activity, but I also want a press of the lock button to silence the alarm. How would I go about creating a handler for presses of the lock screen button?
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Nov 6, 2009
Menu - Settings - Location - Enable GPS satellites
It states that enabling this will "require more battery plus view of sky"
When checked, it states "deselect to conserve battery"
So, the question is, should this be enabled?
I imagine for some applications, knowing your precise location should be useful, especially if the turn-by-turn maps are installed and used.
I'm thinking to deselect this, and selecting it at times when I need it.
So, to check or not to check?
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Jul 23, 2010
How do you guys like the physical buttons vs. the soft buttons (glass) on other phones? I've got an Incredible that I really like, but I'm having two issues that I'm not liking. Call quality and battery life. I looked at the Droid X and really didn't like the physical buttons. How many of you were disappointed by the physical buttons but have found them to be OK after using them?
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May 1, 2010
Been an increasing amount of talk lately about Froyo (2.2) and how it will have flash and all that jazz. I use a non-rooted, standard ROM Droid, and I'm wondering how well it will handle all of these improvements. I assume the newer android devices with their gHz processors will do fine, but how do you think us Droid users will fair? And don't just say it can handle it. I know it will work, but how well is my question?
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Nov 1, 2010
How does the droid X handle 3d games? Mainly the gameloft games i love to play.
I had the vibrant with the powervr sgx540 and it wax nice but my wife took over that phone. I have the HTC G2 with the Andreno 205 which is a little slower than the 540 but still good but i want to know how well the droid x with the powervr sgx530 performs in realworld games. im thinking of returning the G2 and going for an X. i need some motivation!
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Nov 19, 2009
Specifically related to when/how often the backup is sent from phone to google servers, and whether that data is accessible from somewhere other than the DROID.I'm curious as to how to plan restores if a install a jacked up app.I've done a hard reset already, in an attempt to cure the 3g -> 1x issue, and was surprised the auto-restore re-installed my wallpaper without any type of user intervention.
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Oct 17, 2010
Well i have Handcent and have set it to pop up so i can reply system wide. While looking at You Tube videos it pops up i reply and when i go back to my video its just blank will not restart or anything else i have to hit back and click on the vid from the start. Its just annoying. Anyone know a work around this. I am Rooted i also have Tasker (but not that good where i can figure out how to do this) Does this happen to everyone is this just the network not being able to handle text and data at the same time. It worked fine on my old iphone.
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Sep 26, 2010
How to check any kind of network status in android...
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Jul 24, 2010
I use the below code to create a file in my application.I need to check is the file is exist or not from my code ?
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Nov 21, 2010
I am creating a group android SMS. Therefore, i need checkbox. But,my problem is i cant figure out how to get the selected contacts?
This my layout...
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Jul 27, 2010
I want to check if my application is set as the default application for the Intents I'm handling inside my App.
As an example ff more than one application supports to open a specified file format. I need to make my application as a default application from my code. How it possible to make my application a default (from the code)? Can anyone help me?
At least I would like to check this on startup of my app and redirect the user to fill in some information if my App is not set as the default on the device.
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Oct 13, 2009
I got a AsyncTask that is supposed to check the network access to a host name. But the doInBackground is never timed out. Anyone have a clue? code....
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Feb 24, 2010
I want to check the internet connectivity in each activity. If it is lost a message should be displayed.
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Aug 22, 2010
I'm almost a noob in this huge world of Androids and cupcakes and Froyos and Eclairs and Gingerbreadman. So what I want to ask is what stuff should I check in the phone when buying it used from another person. I know to check the standard functions like calling, msging, camera, wifi, gprs/edge, gps etc. But I don't know any other thing.
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Jul 23, 2010
I am currently travelling at Hongkong, here in Mongkok district of Hongkong, there are hundreds of shops selling mobile phones at 'quite cheap' prices. I just bought a HTC desire, it was sealed with plastic, and the storekeeper said that it was a HTC desire with warranty. For HKD 4100. I wanted to buy 2 units, one for my sister. But the store only has 1. So I went to a store next door, and the storekeeper said what I just bought must have been a 'refurbished' one. He said the normal price in HK should be around HKD4250 - HKD4300. Question is, Are there really any method to check whether this new phone I just bought isn't a refurbished one? or a second hand sold as a new unit ? seeing me as a foreigner, they would think I am easier to trick.
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Apr 13, 2010
I want to check one application memory usage and cpu load and power of an appplication in android,What can i do for this?
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Sep 2, 2010
I have made an app that sets notifications in the drop-down status bar of Android phones. However, there is a bug in my code (sometimes the notifications are set, sometimes they are not). I want to be able TO CHECK (in the code) IF THE NOTIFICATION IS VISIBLE TO THE USER. (i.e. can the user see the notification in the status bar?).
How can I do this?
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Feb 3, 2010
When an Android phone receives a call it automatically checks if the call exists in its own contact database. I was wondering if there is a simple way to access that information. I have a PhoneStateListener that performs certain actions during a ringing state, and I want to check if the incoming caller is in the contacts list.
Is there a way to do this without going through the Contacts ContentProvider?
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Sep 19, 2010
I want to develop an application that will periodically check whether Wi-Fi is enabled in android and depending on on the result it will take an action. Can anyone give me some suggestions regarding this?
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