Which is the way to attach the custom event handlers for the activities, in case they support one, when the activity is started using Intent and startActivity() methods. Does intent has a special way to take up the handler callback references. Basically, I wish to handle call end activity after invoking the call activity.
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On what thread are event handlers (like onAnimationEnd, onTouchEvent, onKeyEvent, onClick) executed? Are they called sequentially or can two handlers may execute simultaneously?
View 1 Replies View RelatedI am writing an Application that has multiple layouts with buttons. I have set up onClickListners for the buttons. Some buttons will change the activity and bring up a new layout with new buttons, and others will send outgoing SPP strings over Bluetooth. The strings will be defined in an XML file and will not change (serial commands).I can hard code the MAC address of the Bluetooth Server and only need to send data, not receive.
I am looking for some general guidance on the direction to go as far as setting up my Bluetooth connection and outgoing transmissions. I have looked at the BluetoothChat example extensively but do not have any good resources in the case of multiple activities.
-Do I use a separate activity to manage all Bluetooth transmissions and connections and create handlers for every case where I would send a Bluetooth message?
-Should I add Bluetooth connection+transmission threads in every activity (seems like i would run into issues losing the connection when changing activities)?
-Can I use handlers that are not class specific where the BluetoothService Activity could send whatever was prompted by the active/current activity?
-Could I just hard code all strings to be sent in the BluetoothService Activity and the UI activity could prompt the BluetoothService Activity to send the requested string based on the button click?
I want to create multiple handlers that gets triggered based on users selection, but this handlers implement the same runnable method. the only difference is that they call different postDelayed() method. how do i go about achieving this without rewriting the same code for the runnable? i am still not clear about how the handleMessages() works and if it can be used for this?
View 1 Replies View RelatedI want to display the imageviews one by one that means if image1 is displayed after 2 sec another image is displayed .but i don't want to use threads why because my application is small.I want to use handlers.So give me some suggestions.
View 1 Replies View RelatedI seem to be having a weird issue when parsing XML from a server. In LogCat the following warning is displayed:08-31 12:05:28.870: WARN/ExpatReader(2031): DTD handlers aren't supported.The parser then seems to stop. I can't figure out what is causing this problem, my approach doesn't seem any different in this instance with regard to parsing XML. Does anyone have any recommendations to fixing this issue?
View 3 Replies View RelatedI have got to know that the Handlers are basically used to Run the Small Section of Code and etc...But I didn't got the exact scenerio about when particularly It is Ideal to use the Handlers. Code...
View 2 Replies View RelatedI've more than one Handlers in an Activity. I create all the handlers in the onCreate() of the main activity. My understanding is the handleMessage() method of each handler will never be called at the same time because all messages are put in the same queue (the Activity thread MessageQueue). Therefore, they will be executed in the order in which are put into the Queue. They will also be executed in the main activity thread. Is this correct ? Code...
View 1 Replies View RelatedI was wondering if it is possible to have different behavior depending on a click on the icon and the text inside a TextView... Any suggestions?
View 1 Replies View RelatedI want to send an intent from a crash handler [ crash(String tag, Throwable t) in RuntimeInit.java) ] to an activity (stand alone appllication)
I tried to send it from above handler as follows..
CODE:................................
But i failed to send an intent to my application..
Can i send an intent to my application fro RuntimeInit.java handlers?
This question is related to an existing question I asked. I though I'll ask a new question instead of replying back to the other question. Cannot "comment" on my previous question because of a word limit. Marc wrote - I've more than one Handlers in an Activity." Why? If you do not want a complicated handleMessage() method, then use post() (on Handler or View) to break the logic up into individual Runnable. Multiple Handlers makes me nervous. I'm new to Android. Is having multiple handlers in a single activity a bad design ?
I'm new to Android.My question is - is having multiple handlers in a single activity a bad design ? Here is the sketch of my current implementation. I've a mapActivity that creates a data thread (a UDP socket that listens for data).
My first handler is responsible for sending data from the data thread to the activity. On the map I've a bunch of "dynamic" markers that are refreshed frequently. Some of these markers are video markers i.e., if the user clicks a video marker, I add a ViewView that extends a android.opengl.GLSurfaceView to my map activity and display video on this new vide.
I use my second handler to send information about the marker that the user tapped on ItemizedOverlay onTap(int index) method.The user can close the video view by tapping on the video view. I use my third handler for this. I would appreciate if people can tell me what's wrong with this approach and suggest better ways to implement this.
how to call BarCodeScanner, and return the value to a field.so now, i have a toast that says "successful scan" and then i want to pass the result to a new activity. when i comment out my intent, everything works (minus the passing of data/switching of screen, obviously) but when i run my project as is, it FC's no errors reported by eclipse in code or xml. any insights?
View 2 Replies View RelatedI use onLongClick and onClick events of a button to get user inputs. Whenever; the user long click and triggers onLongClick event, the onClick event is also triggered. I couldn't find my problem. The code of two methods are shown in below: Code...
View 2 Replies View RelatedI hope there is a way to resolve this or bye bye hero.
View 10 Replies View RelatedI just got my htc hero yesterday and im loving it. did a search but couldn't find what im looking for....with my hand cent when i get a message the contacts number is only being displayed can u have the name attached to the number displayed in the hand cent? also is there a way of having your texts received as the displayed message? currently the message i have replied with is the messaged displayed in the in box.
View 1 Replies View RelatedI am trying to place my custom map (overlay) over Google map. For example, my MapView will be positioned to look at some building. I want to load custom image(s) that will show building's floor plan. Want to be able to pan and zoom, and place markers (for example, Room 1, Room 2, etc...), in other words, I would like to be able to use Google Map API methods. The best would be if Google map images are not loaded at all, since that will (I believe) slow down user's experience. Also, the user may be inside the building, and connection may be slow or non-existing.
View 4 Replies View RelatedIs there an app that will allow me to attach files and upload, for example on this site in a post so I could attach a picture or zip file straight from my phone. Or something I could use on a file hosting site, etc. If I could do this I will have no need for a computer at all once I get flash. I have a rooted Droid X.
View 2 Replies View RelatedWhen I use the Gallery widget, how do I get the images to say scale up & glow on being selected and scaled down & un-glow on being unselected? All the tutorials I've seen have this effect but I am not able to see it... Is there some kind of an animation that I have to attach to the Gallery?
View 2 Replies View RelatedBy default, files saved to the internal storage are private to your application and other applications cannot access them (nor can the user).I am able to see the file "/data/data/package_name/files/ in file explore in DDMS, but when i attached the above file URI using imageUri in email , then i saw that attached file is of 0kb.i have used the default email APIs of Android.Can anyone suggest me ,how to attach a file in email that is private to the application?although i am successful able to save the file in SD card and attaching the file from SD card , this is working fine.But if SD card is not available and saving the file to the internal storage , then how can i attach them in email.
View 2 Replies View RelatedI build an email application using intents. I can send a email with one image attachment. I tried to attach multiple images using "putExtra ()" method.But it still send only a single image.
View 7 Replies View RelatedI'm looking for a car mount that will attach to windshield and that has a flexible arm with some length.
View 1 Replies View RelatedTrying to attach pdf files to emails. downloaded scantopdf and it converts pictures to pdf files. downloaded ASTRO to read these files. what I would then like to do is attach to emails. the only files that come up are the pictures.
View 1 Replies View RelatedThe only thing that seems to attach in a text message are pics and music files. I am probably making it way too difficult, i tend to do that .
View 2 Replies View RelatedCan anyone explain how to attach a sliding drawer to an activity. I get the xml creation part but what do you need to call to actually attach your xml creation to the activity, or even better to a layout within the activity.
View 8 Replies View RelatedI would like to know how i can attach the Android clock or calendar into my application. That is when my application comes up one part of the view will be reserved for this application.
View 2 Replies View RelatedI'd like to ask about how to proper handle progress Dialog in Thread, since getting the error from subject. My code...
View 2 Replies View RelatedI cannot send videos!? When i attach a video in a text to someone else it always says, "Message size limit reached." "Sorry you cannot add this video to your message."Anyone know what i am doing wrong or whats up.
View 1 Replies View RelatedMy application stores data locally in the native SQLite db, and I want to allow users to export this data by emailing themself a .csv file. In order to do this I'm generating the .csv from the database and writing it to the SD card, then attaching it to an email:String Builder csv = generateFile();writeFile(csv.toString(),"file.csv");Intent email = new Intent(android.content.Intent.ACTION_SEND);email.setType ("application /octet -stream"); email.putExtra(android.content.Intent. EXTRA_ STREAM, Uri.parse ("file://sdcard/file.csv")); Which all works great. What I'm wondering, though, is if it is possible to skip the step of writing to SD first, and directly attach the data.
View 1 Replies View RelatedWhen my app starts often I get this error. Only this one, anything else, and my app works fine.
What does it mean?
ERROR/AndroidRuntime(28130): ERROR: thread attach failed
28130 is the pid, but it is always different from my app's pid.
I want to attach an image with email, that image is stored in /data/data/mypacke/file.png. How can I attach that image file programmatically? What would sample code look like?
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