What is the proper way to set a timer in android in order to kick off a task (a function that I create which does not change the UI)? Or there is a better way in android (android's handler)?
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I have seen 2 methods so far in my search, both of which I am having trouble with.
Method 1)
Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, 100);
Method 2)
IHardwareService hardware = IHardwareService.Stub.asInterface(ServiceManager.getService("hardware"));
hardware.setScreenBacklight(.5);
Forgive me if this is a topic that has already been discussed, but I've searched for hours and can't seem to find the answer I'm looking for. I'm trying to cut my teeth on Android programming with a simple file manager app and currently have most all functions working, but I can't seem to open a selected file with the appropriate app.
Here is my current code:
CODE:..................
I want to re-use 1 adapter (similar to well known ImageAdapter from samples) with 2 different views - Gallery and GridView. I need to specify LayoutParams for the each View returned by getView() method of my adapter. In case of Gallery it should be instance of Gallery.LayoutParams, and in case of GridView it should be GridView.LayoutParams. I'll get an exception for sure if I'll try Gallery.LayoutParams with GridView and vice versa.What is the best way to do that? Can I somehow use "parent" parameter (ViewGroup parent) for that?
View 2 Replies View RelatedI have an app I am working on and being new to Android Dev I am running into a situation. I have a Scores class not extended from anything (Activity,Service, etc) but in the same package that needs to access SharedPreferences
public class Scores {
Context ctcx;
public Scores(Context context) { ctcx = context;
}
I have written an application and added 2 contacts on emulator, but i
am not able to update their names on android 2.1, code is working on
android 1.6 platform with the following code.
ContentValues contactValues = new ContentValues();
contactValues.put(Contacts.People.NAME, firstName+" "+lastName);
getContentResolver().update(UpdateContactUri, contactValues, null,
null);
In android 1.6 i am getting Uri for those two contacts are "content://
contacts/people/1" and "content://contacts/people/2".
but in 2.1 I am getting these values are "content://contacts/people/8"
and "content://contacts/people/9" and while updating its giving
"java.IllegalArgumentException, Empty values" exception.
When i tried to put a static Uri like "content://contacts/people/1",
code was debugged sucessfully but contact was not updated.
How can i resolve it, why i am not getting uri like 1.6 platform ?
I'm having a bit of trouble getting videos to play on my HTC Evo with Android 2.1. I have several videos that I play on my PSP, and work just fine. However, when I transferred them over to my Evo's MicroSD card and tried to play them in any video player, they only played the audio stream, and no picture was shown. I never had trouble getting PSP-formatted videos to work on phones before; they worked n my G1 just fine. I assumed that because the Evo and PSP even had similar-sized screens, it would be even more compatible. It sounds somewhat foolish when I type it out, but one could expect it to work. I have tried playing it in the stock video player, the Meridian player, and the Video Player app from the android market, and they all had the same error. The file is an .mp4; and, as I said, gave me no problems when played in the PSP's video player.
Here's the specifications on the video file:
Type: MPEG4
Video Codec: AVC
Audio Codec: AAC
Size: 25 MB
Length: 00:23:41
Width: 480
Height: 272
Aspect Ratio: 16:9
Data Rate: 99kbps
Total Bitrate: 147 kbps
Frame Rate: 23 fps
the app I'm trying to implement allows the user to select a sound file (MP3 or WAV) to play at a specific date and time showing a dialog with a progress bar and an OK/Cancel button allowing the user to stop the playing of the sound file. I want it to behave something like the countdown apps I've seen or even the built-in alarm clock app. As I'm implementing this simple (I thought!) app, I'm trying to better understand the platform and make the application conform to the Android way.
As I've been writing the app, I learn more about how things are supposed to work on the Android platform. And here's where I'm getting a bit confused. During my attempts to get the alarm to fire and display, I'm learning that properly formed Android applications are not supposed to show dialogs as a result of a background service or broadcast receiver being invoked through Android's alarm service. Instead, I think, the app is supposed to use a notification on the status bar to alert the user. The user then has the option to look at the notification to see what the app is trying to tell them..............
I started to develope an application. When I wanted to close the application I clicked on the home screen, but the app is still playing in the background. Than I tried to click on the "back" key, but nothing happend, so I've created a key event listener for the 'back" key, and inside that method I wrote finish(); Now my app is closing but I think it's still running in the background, because when I go to "manage applications" I can still see it in the "running" tab, and if I press it, I see I can click on the "force close" to actually close the app. What do I need to do in order to really close the app without leaving it open (one way or another)?
View 9 Replies View RelatedCan finish() be used to close an activity from a service? If not, what is the proper way to end an activity from a Service? I've created an activity from my service and need to close it.
View 2 Replies View RelatedWhat is the best (most proper) location to install the Android SDK on Mac?
I've seen in some posts that somewhere in the Home directory is advantageous. Some seem to have placed the SDK in the Applications directory.
I am creating an App in which i need to add a timer for postpone the one event for 1 hr and start same event after 1 hr , so i want to know how i can implement the same. Are there any Timer api's and handling of them in android.
I came to know about Timer in android. I read http://android-developers.blogspot.com/2007/11/stitch-in-time.html that Timer is not available at Runtime.
View 2 Replies View RelatedI am writing an android application which uses a REST-based API on the server. So far the login works perfectly using HttpGet = I send the credentials, it sends me back a JSON response object containing session id or failure. I then moved onto using another get api (this one is passed the sessionid) and the response I get back looks like a valid one "200 - Ok" but the response body contains nothing - 0 text.
If I take the same URL and drop it into a browser, I get all the JSON text I expect displayed in the browser window. So what is the difference between a browser request/response and that of HttpGet? Any clues as to why my HttpGet might return a 'valid' nothing?
I am having trouble in finding out the right settings for my emulator to simulate the Motorola Droid. Does anyone know with what settings should I create my emulator, so that I can emulate the Droid handset?
View 4 Replies View Relatedwhen using the new Service.startForeground() method how do you do updates to remote widgets? What is the right way? Updating the remote views doesn't seem to work. Should I notify again with the same ID instead?
View 3 Replies View RelatedI have a program that fails to start. When I remove this line of code from the startup it starts with out error... db = SQLiteDatabase.openOrCreateDatabase(data, cf); data is a file that has been made, I have tried multiple locations none worked. cf is a cursor factory. This worked perfectly before version 1.0 and also when put in a try/catch statement still errors out. It is the process has stopped unexpectedly error. Any thoughts as to what permissions I could give the app to make this work? Am I heading in the wrong direction?
View 3 Replies View RelatedIs their any proper documentation which mention android internal memory storage and max app size limitation.?
View 2 Replies View RelatedSuppose you have an app with a lite version and a full version. The app stores some user data in SharedPreferences, and some data in a SQL database. If a user tests the app for a few days, generating data all the time, and then decides to switch to the paid version, how do you copy or share the data between the two? Some code examples would be appreciated - but for some reason I have a feeling this is much, much more complex than I hope.
View 8 Replies View RelatedI have an application that uses OpenGL on a GLSurfaceView. The problem is that the initial load takes quite a while processing textures and getting things ready.
What i want to do is have a simple PNG displayed (with a slight animation) while the GLSurfaceView is getting ready. As soon as it's ready to render, i would like to tear down the splash screen.
What is the right way to do this? I've tried ViewFlipper, ViewSwitcher and a bunch of other things to switch between my R.layout.main view and my GLSurfaceView but i can't seem to get it right. Any ideas?
I have an android app I want to connect to a Google App Engine based server. I can get the auth token from the AccountManager. It seems the next thing I am supposed to do is talk to an auth page to get a cookie. Following the awesome instructions here: http://blog.notdot.net/2010/05/Authenticating-against-App-Engine-from-an-Android-app
I think my url should be:
https://MYAPP.appspot.com/_ah/login?continue=http://localhost/&auth=CrAZYl000ngToken
but rather than a redirect, I get a 500 server error:
Error: Server Error
The server encountered an error and could not complete your request. If the problem persists, please report your problem and mention this error message and the query that caused it. What's up with that? What is the URL I am supposed to be going to? Or maybe I'm doing something else wrong?
I have a service that I need to execute every two minutes. Would it be more efficient to use an alarm or a timer?
View 3 Replies View RelatedHow to get whether timer is running or not? That means How to get whether timer is scheduled or not?.
View 2 Replies View RelatedI'm looking for the best way to setup a timer for a game. For example I want the timer to tick down, but I want to be able to add to the timer when certain levels are reached etc. I'm just looking for the most efficient way to accomplish this. it only needs to be every second or so. If anyone has any insight on this.
View 4 Replies View RelatedI am new to Android development and have been working on a simple demo app that needs to update a TextView a few times from an array after a button is clicked. I have read and adapted the code found here to achieve this: http://developer.android.com /resources /articles /timed-ui-updates.html
View 2 Replies View RelatedI would like to know how to intercept the event that the apk has been updated in order to launch again my Timer. Indeed, I have a Timer wich is "scheduled AtFixedRate", but when my App is updated through the market, the timer is killed ; and if the user doesn't launch the App, the timer is not started (so my app becomes useless). How could I do to avoid it ? Is there an event to catch the "App updated" ? I searched, tried, but nothing.
View 4 Replies View RelatedI have to give a 20x20 presentation tomorrow and I'm looking for a timer app to help out. 20x20 means that each slide auto-advances after 20 seconds. I'd like to have a timer on my phone that would give me a quick glance of how much time I have left for each slide. Start it at 20 seconds, have it count down and when it hits zero, start over at 20. Seeing as it's just a timer app, I really would rather not pay $2 for StopWatch & Timer, which is the only one I've found that offers a looping timer. Does anyone have any ideas?
View 1 Replies View RelatedIn order to get XML data from a server repeatedly, I'm attempting to use AsyncTask and Timer as per Mark Murphy's suggestion. I get the following error:01-07 16:11:26.705: ERROR/AndroidRuntime(729): Caused by: java.lang.Runtime Exception: Can't create handler inside thread that has not called Looper.prepare()I'm using SDK 1.5 with Eclipse on Windows.I've looked in documentation, on StackOverflow and in the Android Developers group, but I'm not clear what's causing the error or how to fix it.I can get the data once - i.e. without Async and Timer - and parse it via SAX without problems.s: I'm quite new to Android.
View 5 Replies View RelatedWhen writing :
CODE:.......
Are we actually starting a new thread that handles ticks ? or what is really happening behind ?
Is there a timer within Android that can be set for a given interval and when the interval has elapsed to send a signal back to a listener routine inthe main programme? Something like the way a button reacts when clicked.
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