Android :: OnKeyDown Activity Method Triggered For Long Clicks
Dec 10, 2009
I have an activity which overrides the onKeyDown method. The documentation states the following about onKeyDown: "Called when a key was pressed down and not handled by any of the views inside of the activity." The problem I have is that this method is being called even when the views inside the activity handle it. I have a button implementing a longPress listener. What I see on debugger when long clicking on the button with the center key is that first onKeyDown from the activity is called then the longPress listener from the button gets triggered. Even for Textviews, when long clicking on it with the center select, the activity onKeyDown gets triggered before the TextView processes the longclick (and shows the Input Method context menu).
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Feb 21, 2009
When you receive clicks and long clicks, how do you get the x and y coordinates that were clicked?
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Oct 29, 2010
i have three imagebuttons.and on clicking each buttons a new image with new screen opens.means three imagebuttons calls three different activities. it means if you have ten buttons we have to call 10 activities. i want to call the common activity on each button clicked using if else construct.
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Sep 27, 2010
I want to call another activity when the user clicks an hyperlink. Can anybody suggest me how to use Intent in this case?
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Nov 19, 2010
Here is my code. I'd like to pass a boolean to the activity i want to start.code...
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Oct 1, 2010
If I have a button that starts an activity, and the activity sometimes takes a second or two to throw up its own view, how can I most simply and reliably protect against the button being clicked multiple times and kicking off multiple (identical) activities?
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Feb 19, 2010
I understand that trying to capture home button clicks is a hack, but I need to atleast close my current activity when the user clicks on home button. Is there anyway I can tell the system to close this activity is the user clicks on home button? If so how can I do that? I need to do it as I am listening for location updates and I want to stop the updates and also need to trash any location that was available to me previously. I need to do this just in case any user while in that activity clicks on home button and changes the location settings.
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Jun 17, 2010
I have Two activities One splash screen, Player screen. When user clicks on my app icon first splash screen is displayed and then player screen When player activity is running, if user returns to the home screen and then again clicks on app icon, the application is starting from the splash screen again.can any one please help me out how to do any one of below
1) I need to close current running activity and reload application.or
2) I need to resume to the player screen directly.Please give me an example or reference to follow, Im beginner in android programing.
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Jan 21, 2010
I want to set an alarm in my application which will be triggered each day. According to the doc, I have to set a one-time alarm, and in the BroadcastReceiver which will receive the alarm signal, reset the alarm for the day after. Is that correct ?
My BroadcastReceiver handles well the wakelock and launch a service which releases this wakelock. Everything works fine here.
However I have problems. In my application there is a checkbox which is checked when alarm is up. To know if my alarm is up, I use the following condition :
CODE:...................
But this doesn't seem to work very well, is that a good way to know if an alarm is up ?
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May 26, 2010
I have followed the Local Service example provided by Google, but my Context::bindService(...) always returns false and there is Service Connection::onServiceConnected is also never called. I understand that Context::bind Service() returns immediately, but my Service Connection object is never triggered. I don't know if these apply My activity is running inside a tabHost and I was wondering if that can affect service binding in any way. The Service itself may have a problem, but I can call start service to the same service with the same Intent and it works as expected. Does anyone have experience with this? Please help me out.
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Nov 11, 2009
By default, if we long press search key it opens quick search box with the keypad slided up. what should be done if I want to change this default action to launching of an application when ever search key is long pressed. This obliviously requires changes in the framework. i tried changing some code in Search dialog.Java file but we can't use Start Activity there. pls guide.
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Apr 21, 2009
I have a java class Poker.java and an Activity .GameWindow in GameWindow.Java. In the GameWindow activity i have a method...
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Sep 17, 2010
The Activity class has a setContentView() method. The PopupWindow Class has a getContentView() method but nothing else does. Is there another way to get the main content view for an activity?
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Feb 16, 2010
I have the folowing method in a Service in my appplication: Code... Do I have to do an AIDL or is there a simpler way?
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Jul 24, 2010
I have an AsyncTask that scans the file system and publishes progress through Notifications. To do this I need a reference to the current Activity in the AsyncTask.
I also don't want to kill the task when the activity is destroyed. How do I avoid leaking the activity and everything it references on each configuration change?
One possibility is to remove the reference in OnPause() to be sure it is gone when the Activity is destroyed, but that would mean notifications stops coming as soon as you leave the activity which is no good.
Isn't there a recommended way of dealing with AsyncTasks in this way?
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Jul 27, 2009
Finally after many days of getting StackOverflowError, I've tracked down the issue and fixed it, only to find that my game's serialization takes about 5 -10 seconds on the emulator and most likely around that in the target. So far my the lifecycle of my game is as follows
onCreate - check if serialization file exists, if it does, de- serializes it. (~ 5-10 seconds) onPause - if the game is not complete, then serialize it (~ 5-10 seconds) I remember reading somewhere that another activity's onResume will NOT get called UNTIL the previous activity's onPause has ended. So I am worried that my game is delaying another activity that wants to start from doing so i.e like a phone call etc. I think speeding up the serialization is not going to be feasible, so any ideas on what I can do? Can I serialize in the onDestroy instead of the onPause? I read that the onPause is the only safest place to store the state.
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Apr 19, 2009
Can i call method of Listactivity from Activity class? I have creates Intent object of myListActivity class and called startIntent() from myActivity class.
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Aug 10, 2010
I have a webview and when I do some java-script processing on it. I click on a link to play a video, after the video finishes in full screen. I want to return to my webpage in the same state I left it before clicking to play the video. How can I do it? Any snippets?
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Oct 18, 2010
I have list activity with custom array adapter and I can't to get context menu when make long press on list item.
<TabWidget
android:id="@android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="5dp">
<ListView
android:id="@+id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
Why I do not see context menu? What I do wrong? How to get context menu with array adapter and ListActivity.
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May 20, 2009
I came to this issue : I created a layout with only 1 ImageButton and it works as expected when loaded from Activity (using setContentView) : The button is changing background on touch down event (orange) But not changing when the same layout is loaded by the InputMethodService (but it react to onClickEvent if used ) Here is a minimal project and video if you need to reproduce : http://rzr.online.fr/tmp/rzr-test-android-imf-0.0.20090520.tar.gz
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Mar 3, 2010
I am encountering an exception in the onCreate method of an activity.
CODE:.......
The onCreate method is as below.
CODE:......
The layout view XML is as below.
CODE:..........
I've already changed the ID of the ExpandableListView to "list". But it is not effective.
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Oct 30, 2009
I have following problem: I have my "MainActivity". In this Activity, i start a thread (SaxParser in another "normal" java file). Now I want to call a method from the MainActivity out of the normal java file? I have read something of an Application object, but i only find things, where i have to create a new Intent. Is it possible to use the application object in the other "normal" java file like that: Code...
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May 4, 2010
I have a tab widget where one of the tabs is a chat-type feature. I want to update the chat data at an interval (variable depending on whether the chat tab is active or not).
The best approach seemed to be using an AsyncTask in my main TabActivity class, as that would avoid any issues of the chat activity being destroyed while in the background, while an AsyncTask was running. I wanted to ensure that the Activity isn't destroyed and recreated, thus causing my AsyncTask to be unable to modify the actual active Activity's data.
However, now that my AsyncTask is in the TabActivity activity, I don't have a direct way to call my Chat's ListAdapter notifyDataSetChanged() from my onPostExecute() method anymore. Is there a way to get a reference to a given Tab's current Activity from the TabHost/TabActivity?
Or, alternatively, can I assume my chat activity will never be destroyed as a child activity of the TabActivity activity (well, never destroyed while the TabActivity is active at least), and then just put the AsyncTask in the Chat Activity?
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Oct 1, 2010
I would like to access the public method of an Activity run by a TabActivity using: Code...
Basically, what I what is to let the parent Activity call a method in child Activity in order to do something. Is this possible?
I did try this:((TeamHuddleScreenMsgsView)getTabHost().getCurrentTabView().getContext()).refreshModel(); but I'm encountering a ClassCastException. It seems that the getContext() still gives the TabActivity. Any help on how to get the child Activity?
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Nov 22, 2010
I've got the following Button declared in my main.xml And I have the following methods in the activity. Code...
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Feb 3, 2009
I am trying to get a UI to present itself when an incoming SMS happens. When that happens, I would like to present a UI to the user.
I have a BroadcastReceiver class that listens to the SMS_RECEIVED event. I also have an Activity class that is capable of displaying the needed UI when the event happens.
The questions is: How do I start the activity from within the onReceive method of BroadcastReceiver?
I know others have done this but I can't seem to find any resources that illustrates how.
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Aug 4, 2012
I'm looking for a camera app that can be triggered via audio, but also take pictures at a SUPER fast rate.
I've found Sensor Camera. This, as the name suggests, allows for capture of photos through a variety of different sensor methods. Light, Sound, Motion, etc. It has great control over the audio input levels but takes way too long to process each photo between shots.
I've also found Fast Burst Camera. This is perfect!! From what I can tell it uses the video camera in order to get the frame rate up to 30fps. Setting this to single shot, with no image review, allows for amazing speed & control over capture.
Any app that combines the two? Or if not, would it be easy to make?
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Jun 7, 2010
A TabActivity start other activity when i click on a tab,
How to send information to parent (tabActivity) and don't finish current activity?
My tabactivity start another activity like this :
CODE:............
Inside my new Activity Option, i would like to Call method of Tabactivity, is it possible ?
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Jul 2, 2010
I am trying to call my service class's stopService() method from my activity. But I don't know how to access stopservice method from my activity class. I have the below code but its not working. This is HomeScreen class:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
enablecheck = (CheckBox)findViewById(R.id.enablecheck);
enablecheck.setOnCheckedChangeListener(new OnCheckedChangeListener(){
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// TODO Auto-generated method stub
if(enablecheck.isChecked()){
startService(new Intent(HomeScreen.this, AutoService.class));
} else {
stopService(new Intent(HomeScreen.this, AutoService.class));
} } });
}
This is Service Class:
public class AutoService extends Service {
private static final String TAG = "AutoService";
private Timer timer;
private TimerTask task;
@Override
public IBinder onBind(Intent intent) {
return null;
} @Override
public void onCreate() {
Toast.makeText(this, "Auto Service Created", Toast.LENGTH_LONG).show();
Log.d(TAG, "onCreate");
int delay = 5000; // delay for 5 sec.
int period = 5000; // repeat every sec.
timer = new Timer();
timer.scheduleAtFixedRate(task = new TimerTask(){
public void run() {
System.out.println("done");
} }, delay, period);
}
@Override
public boolean stopService(Intent name) {
// TODO Auto-generated method stub
timer.cancel();
task.cancel();
return super.stopService(name);
} }
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Oct 29, 2010
Can anybody tell me what method of an activity executes when an application closes?. Like I have a main activity and if I press back button on my phone. The Application closes so I want to know what method executes at that time.
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