Android :: Detect User Pressing Home Key In Activity

Feb 5, 2010

Can you please tell me how can my activity detect user pressing HOME key?

Android :: Detect user pressing home key in activity


Android :: Activity State On Pressing Back And Home Button On Screen

May 6, 2009

Whenever I press the home button when Im in the root task of my application and when I click on the icon of my app again the state of my task (activity) is retained, but when i press the back button on the emulator and when I open my application its state is not retained. I want the state to be retained in both the scenarios.

In the mnifest I have given the below entries,

android:alwaysRetainTaskState="true" for the root activity

android:launchMode="singleTask" for the application

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Android :: Intercept Home Button - How To Detect User Pressed?

Jul 30, 2009

In an activity, how do detect the fact that the user pressed the home button?

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Android :: Detect If Activity Front Most And Visible To User?

Jun 28, 2010

I would like to launch an intent when any of my activity is visible, otherwise I will put it up as a notification, and will be fired by the user. To decide this, I need to know if any of my activity is front-most, how do I that?

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Android :: Pressing Home Or Back Buttons From Main Activity / Causes App To Stop Unexpectedly

Nov 13, 2010

This is difficult for me to diagnose because the Log doesn't provide the offending code line that indicates what caused it.Running the app in the Emulator seems to work OK until I press Home or Back from the Main Activity. Using Back between the activities in the program seems to work OK, it only fails at the Main. I don't have the app finished yet so I haven't loaded it to a device yet.The Log says there was a null pointer exception so I would like to find why.The log points to the android routines (and I don't appear to have the source for those routines in the emulator-most but not all and these are refering to those I can't access). The log gives up at one point and says "11 more".It would be nice to see the remaining 11 in the hopes that one of them points to the line in my code that caused the offense.I'm looking for ideas on ways to find the error and hopefully cure it.

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Android :: How To Close An Activity When User Clicks On Home Button

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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Android :: How To Set Running Activity When User Clicks On App Icon On Home Screen

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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Android :: Force User To Complete A Task Before Pressing Back?

Mar 21, 2010

I show to user a list of categories, he must choose one.
How to force the user to choose before pressing back?

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Android :: Leaving An Application By Pressing Home

Aug 14, 2010

I've recently been getting user complaints that when they leave my app by pressing the 'Home' key, my app continues to play sounds like it is supposed to, but when they go back to the app, a new one opens, but the old one is still running in the background. I have noticed this sometimes myself too, but only recently (my app has been on the market for a while now). I've done some testing myself and noticed that when a new instance of the app is opened after pressing 'Home' then starting the app again, pressing the 'back' key will go back to the original instance of the app that was opened. This means that the original instance of the app was not killed, but a new one was just opened over it. Has anyone else experience something like this?

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Android :: Service Running After Pressing Home Key

Nov 24, 2010

I have an Android service, created in OnCreate of first Activity of the application using StartService(). I need this service to be running throughout the life span of the application ie, all the activities in the application. But the service should not consume the resources after user pressed Home key or Back button. Is there any elegant way to do that other than stopping the service in onPause() method of all the activities?

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Android :: Game Goes Blank After Pressing Home And Restarting

Apr 6, 2010

I am making an Android game with an Activity called Game, a SurfaceView called GameView and a Thread called GameThread. The Game's onCreate(), I make a new GameView, which makes a new GameThread, where all the game logic and canvas drawing is carried out. However, I'm having some lifecycle difficulties. When I press back and restart it, it works fine, but when I press home and restart it, all I see is a blank screen. Here are the GameView's onSurfaceCreated() and onSurfaceDestroyed(): @Override public void surfaceCreated(SurfaceHolder holder) {
mThread.mRunning = true;
mThread.mWidth = getWidth();
if(mThread.mWidth > 550) mThread.mWidth = 550;
mThread.mHeight = getHeight();
try {
mThread.start();
} catch(IllegalThreadStateException e).......

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Android :: Does Pressing Back Always Cause Activity To Finish()?

May 10, 2010

I've heard that pressing the back button will essentially cause the current Activity to finish(). Is this always the case? Seems like it would be with the way it pops the Activity off the stack.

The one situation I'm not so sure about is when the root Activity in a Task has back pressed. I'm currently experiencing a very weird effect, described as follows:

On loading my application, the first Activity is for initialization, and once it finishes, it calls my main Activity (a TabActivity). This first init activity has android:noHistory="true" set in the Manifest so pressing Back from my main Activity won't go back to that. It goes to the Launcher. When I click on my App in the Launcher a second time, the initialization activity loads again, and loads the main Activity when done. Almost immediately after, it loads a second instance of my main Activity. But ONLY after the Application has already been run once, and was exited by pressing BACK from the main Activity. It does it every subsequent time until I force quit the app or load a new version from the IDE.

Based on this, I am suspecting some kind of Activity instance is lying around and being reused, since it only happens on the second+ time I run the application (and exit with BACK -- using HOME just returns to the last state of the app, no big deal).

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Android :: Detect If User Started App Again?

Jan 19, 2009

I want a countdowntimer to halt on a menu and also when the user goes from that menu to another activity. When the user comes back from that activity or when the menu is closed, the timer should still halt. However when the user went to the home screen and clicks on the icon again, I want the timer to restart. So my question is, is there a way to detect if the user has just opened your application, or if the user comes back from another activity or menu?

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Android :: Moving To Specific Activity After Pressing Keypad?

Jul 29, 2010

I want to specify in code to move to specific activity after pressing back button on android keypad how I can accomplish this. Now I ot the solution to my prob onBackPressed() works after 1.6 version for previous versions we need use:
public boolean onKeyDown(int keyCode, KeyEvent event) method
My code for this solved prob is

@Override public boolean onKeyDown(int keyCode, KeyEvent event) {
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.CUR_DEVELOPMENT && keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
// Take care of calling this method on earlier versions of
// the platform where it doesn't exist. onBackPressed(); }
return super.onKeyDown(keyCode, event);
} //@Override public void onBackPressed() {
// This will be called either automatically for you on 2.0
// or later, or by the code above on earlier versions of the
// platform.
Intent i=new Intent(AgesWebViewIndex.this,TabCls.class);
i.putExtra("age", "agepage");
startActivity(i);
return;
}

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General :: Long Pressing Home Key?

Apr 17, 2013

i have karbonn a21... whnevr i long press home button to switch between recent apps. phone hangs and no soft keys work. nd touch works slow. than i have to lock screen and unlock it again....than it works fine.

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Android :: How To Detect When User Switches Tasks?

Aug 5, 2010

Say that TaskA is currently in the foreground and my ActivityA is somewhere within its stack. Is there a way for ActivityA to get notified or detect when the user switches from TaskA to TaskB? As a use scenario, when the user launches my app, my ActivityA will always be the root Activity of the newly created Task. ActivityA will make use of Activities from other Apps, which will be pushed on the same Task. I would like to get notified when the user has switched to another application. In this case, onStop() in MyActivityA does not suffice as that will also get invoked if the user navigates to another screen within my app.

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Android :: How To Detect User Inactivity In Phone?

Nov 17, 2010

I want this same behavior even when the app is in the foreground but user doesn't interact with the app for a long-time say 6-7 mins... Assume the screen is ON all the time... I want to detect kind of USER INACTIVITY (No interaction with app even though the app is in the foreground) and kick start my count down timer.

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Android :: Detect If User Using Application First Time?

Sep 21, 2010

I would like to know if the user is using the application for the first time. I am using SharedPreferences, but I am not sure if I have the right logic. How can I set my isFirstLaunched boolean to true when the user first launches, and then immediately set to false after work has been done?

protected void onStart() {
super.onStart();

if(isFirstLaunch()){
populateDefaultQuotes();
//Save the preferences, isFirstLaunch will now be false
SharedPreferences settings = getSharedPreferences(Constants.PREFS_NAME, 0);....................

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Android :: Detect User Idle Time

Jul 21, 2010

I would like to know if android has some kind of 'idle time broadcast message'. So for example if the user is currently using one activity of my application but haven't touched the screen or used any keyboard (and doesn't have the autolock at phone level or any screensaver) for a while, I would like to be informed (let's say after 60 seconds). I would like to avoid doing it manually (by tracking each user click, touch, activity changes...)

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Android :: Detect If User Discarded Message

Nov 20, 2010

I'm writing an application and I have a feedback screen. When the user presses submit button, it takes him to the default email client and prefills the email address, subject etc. ("mailto:") When the user presses Send, my application appears and I thank the user for giving feedback. However, how can I tell if the user has pressed the Discard button and did not send the email?

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Android :: Detect When User Taps On View?

Jan 10, 2010

I want to detect when a user taps anywhere in a view in my Android application. My code looks like this:

linearLayout = (LinearLayout) findViewById(R.id.linearLayout); // main layout
// ...
linearLayout.setOnTouchListener(this);
// ...
public boolean onTouch(View v, MotionEvent event) {
Toast.makeText(this, "Touch!", 1000);
if (event.getAction() == MotionEvent.ACTION_DOWN) {
Toast.makeText(this, "Down!", 1000);
return true;
}
return false;
}

but when I click on the view, I don't get Toast! Do touch events work in the emulator -- or have I got something wrong in my code?

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Android :: Accelerometer Detect User State

Oct 27, 2010

I'm currently working on a project which requires the detection of user state (walking, running, driving), I've looked through some of the existing solutions on Android platform such as pedometer or calculating velocity with given acceleration, but I'm still unsure how I can approach this problem. Is there a way to accomplish this without much of data mining/signal processing? How can I solve this with simple logic? Or is this better solved with gps instead of accelerometer? The program will only need to return simple user-state descriptions like walking.

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Android :: How To Detect User Has Screen Unlock Pattern?

Feb 15, 2010

Is there a way, some API one can call to detect if the user has set a screen unlock pattern or not?

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Android :: How To Detect User Has 3G / Wifi On Before Making URL Connection?

Sep 9, 2010

I don't want my app to crash if the user doesn't have wifi or 3g connectivity. How can I catch this at runtime in my app?

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Android :: Detect If User Selected From CreateChooser Options?

Jul 20, 2010

I have a code that will prompt user to send a message by selecting the desired application, how can I detect if the user actually have chose from the options or instead pressed Back? I tried to check if the intent returned something, but is running asyncronous so cannot be tracked. Also I have tried to run the intent with startActivityForResult, what I noticed in onActivityResult that resultCode is always 0(RESULT_CANCELED) even if user selected, or not from the chooser.

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Android :: Don't Need Previous Activities Load On Pressing Back Button On First Activity

Jul 15, 2010

When i leave my app after pressing home button and then re launch it from menus it behaves in a strange way.Sometimes it launches the same activity on which i pressed home button.But sometimes it launches the first activity of my app. One reason for this could be that whenever system has memory shortage it clears any activities existing in But the strange thing is if i press back button from first activity it takes me back to the same activity on which i pressed home button and all other previous activities are also there(like if i press back button again previous activities also exist.)I haven't set any launching mode for any activity in my app(like single instance etc).What i don't need is that previous activities load on pressing back button on first activity.

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General :: Make ADW Start When Pressing Home Button?

Jul 9, 2013

I upgraded my Galaxy S2 (Straight Talk) to CM10.

Now whenever I press the home button, it brings up CM10's home screen.

How do I bind ADW to the home button?

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Android :: Detect When User Chooses Number In Contacts List?

Sep 6, 2010

I'm trying to get an Android background service to be "notified" when the user chooses a phone number (he wishes to call) from the phone's contacts list. My goal with this is to prevent the system from placing the call and present a user with a choice dialog, then go from there.

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Android :: Google Maps API - Detect When User Stopped Panning Map

Apr 3, 2010

I need to know when the user is panning the map so I can check if they've panned outside of the initial radius that I fetch data from the API with when the app launches. If the user pans outside this radius, when they stop panning I will get the new center point of the map and fetch new data with that geo-point. So far I can't find anything in the Google Maps API docs [and I've inspected the entire class tree] that notifies developers when any animation actions are occurring or completed.. It seems weird that Google wouldn't give us some sort of event listener or protected method to override on the MapView or something to do this.

I looked into what methods were available to override on the View class and it does have onAnimationEnd() but I guess panning or zooming the map doesn't count as an animation or is never passed up from the MapView or something... I tried running a simple log in onAnimationEnd() and it is never being called. Searching the interwebs gave me nothing but some never-successfully-answered posts.

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Android :: Detect User's Location From Webpage Opened In Browser?

Dec 24, 2009

Visiting www.google.com on the Android browser (or even with an android spoofed user-agent), presents the option to "Share Location". When clicked, it uses the GPS/Cell phone towers to figure out the location. I tried the google.loader.clientLocation but that only works using the IP address. Is there a method to tap into the Android OS and access GPS data from a regular web application (and not an Android application) similar to the way Google does? [Perhaps Google uses the Google Gears app on Android to access this data.]

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