Android :: Launch Activity From Droid Home Screen Widget
Apr 24, 2010
I am desperately trying to get my head wrapped around how to implement home screen widgets. Right now, I (finally) was able to get a button on my widget respond to a button press setting up an intent filter in the manifest.
However, I cannot for the life of me figure out how to launch an activity when the button is pressed. Basically, here's the code i have...
What I really want to do, though, is start a new activity, not display a toast message. I know it has something to do with pending intents, but I can't figure out how to get that to work.
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Dec 20, 2009
I'm trying to do something which really ought to be quite easy, but it's driving me crazy. I'm trying to launch an activity when a home screen widget is pressed, such as a configuration activity for the widget. I think I've followed word for word the tutorial on the Android Developers website, and even a few unofficial tutorials as well, but I must be missing something important as it doesn't work.
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Sep 14, 2010
I have a widget that when clicked opens an activity from same app as the widget. When the activity is closed/dismissed via a button, the user will see the full app window IF the app was previously open/in memory. Is there a way for the activity to finish and return to the home screen and not to an existing instance of the app?
Intent i = new Intent(this,RateIt.class);
i.putExtra("com.sporadicsoftware.NetQ.movie_id",aMovie.title_id);
i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET|Intent.FLAG_ACTIVITY_NO_HISTORY|Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(context,
0, i, PendingIntent.FLAG_UPDATE_CURRENT);
updateViews.setOnClickPendingIntent(R.id.movie_one_title, pendingIntent);
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Nov 5, 2010
I have a widget that contains 4 buttons to show 4 stock prices, each of them will launch into the same activity Quote.class to show stock details. In onUpdate(), it will set up the pendingIntent with extras with stock symbol. After I hit button A, it goes to Quote activity that shows stock A. Then I hit the BACK button to the homescreen, Quote activity calls onDestroy() and when I hit button B, stock B will show properly. However, when i hit HOME button after it shows stock A, the Quote activity only calls onStop without calling onDestroy(), then as i hit button B, it will call onStart() and it shows the same instance that shows stock A.
CODE:............
Originally I thought adding a flag in the Intent should solve this problem. But I have tried
i.setFlags(Intent.FLAG_ACTIVITY_MULTIPLE_TASK or FLAG_ACTIVITY_NEW_TASK or FLAG_ACTIVITY_NO_HISTORY), none of them makes any difference.
So is there any ways to make it work? How can i remove the history stack from HOME button? How can I call onCreate in Quote activity and get new extras when i hit button B?
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Oct 8, 2010
I am following http://www.helloandroid.com/files/xmaswidget/android_howto-hellowidget.pdf for developing a widget. I am unable to launch a widget on to the home screen.When running the application I am getting the errors like No Launcher activity found and The launch will only sync the application package on the device!
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Aug 3, 2010
Launch of My Activity at startup with out using Action_boot_complete. Instead of displaying home screen for the first time I want to display my activity for device setup when device_provisioned == 0. How can I override the code that launches the home screen activity.
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Jun 12, 2010
How can we pass Android Home Screen Widget info ( putExtra maybe ) to an Activity.. What particular method callback will handle this one?
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Nov 22, 2010
On my droid phone, I get what I consider a proper pause/stop/resume/restart sequence when the home button is pressed and I then select my application. However, I'm testing on a new Samsung Galaxy tablet and when I select my application after having pressed the home button, a new activity is being launched. I do not understand why the behavior is different on the Galaxy. Any ideas? I have removed orientation config changes in the manifest, so it's not that.
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Sep 26, 2010
My widget launches a configuration screen when chosen to be put on screen. That works fine.
I wanted to be able to touch a part of the widget to return to that configuration screen.
I have created 2 pending intents in my widget's service but only one works. The code is below...
For the life of me i cannot understand how i can launch again the configuration activity.
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Sep 28, 2009
It is possibile to start an outcoming call without change screen? I've a widget that perform a call for get remaining credit, but I don't want to change screen... If this isn't possibile, is possibile to return to the home screen when the call is terminated? Now the screen remain on last call log.
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Feb 5, 2010
Actually this question applies to any widget that requires data from a remote server.
The answer would be pure speculation, but how do you think the widget gets its data? For those that don't know, the widget shows a history of your friends' latest status updates.
Some answers that I can think of:
The widget polls the API directly
The widget grabs data from some
service that's running in the
background, which polls the server
Somehow Facebook implemented push on
Android which I don't think exists
The widget somehow detects that the
user is using the screen and grabs
the data on demand
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Feb 8, 2010
Is it possible to start an activity from the built-in Camera app after the user touches the on-screen Capture button?
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Mar 3, 2010
example scenario is: from login screen - main screen - then when i clicked a hide button inside the mainscreen, the app will need to go in the home screen, and when im going to click the app again the main screen would be called and not the login screen
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Mar 3, 2010
example scenario is: from login screen - main screen - then when i clicked a hide button the app will go to home screen, and when im going to click the app again the main screen would be called.
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May 26, 2010
I'm using helixlauncher and normally the four apps that id have on the default home screen are now in the quickbar on the bottom. So Im lookingg for a replacement widget that I can put there so its not so empty.
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Dec 11, 2009
I downloaded a couple of widgets one having to do with battery, wifi, bluetooth, and volume I believe... Well none of them worked and I'm pretty sure I uninstalled all of them. However on the most right side of the home screen it still says Problem Loading Widget.. Doesn't seem to be causing a problem but it is just really annoying.
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Nov 4, 2010
I have a TextView in my home screen widget. Can I use the following selector as the background of the TextView so the TextView can be highlighted when clicked? I know I can do it in Activity, but I am not sure about home screen widget.code...
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Mar 31, 2010
I am designing a home screen widget. I ran this widget on a HTC Hero device, which has a screen of 320 pixels * 480 pixels with mdpi. It ran perfect on HTC Hero. The widget takes 3 cells * 2 cells space, i.e. 240 pixels * 200 pixels.Then I ran this widget on a Nexus One device, which has a screen of 480 pixels * 800 pixels, mdpi. Since Nexus One also is mdpi, so I though 240dip is equivalent to 240 pixels on Nexus One and 200dip is equivalent to 200 pixels on Nexus One, so the widget will not take 3 cells * 2 cells space on Nexus One device. To my surprise, when running on Nexus One device, the widget take exact 3 cells * 2 cells, about 360 pixels * 300 pixels, on Nexus One device.I am confused. The layout xml above specifies 240dip in width and 200dip in height for the widget, but why did it take 360 pixels * 300 pixels on Nexus One Device? What am I missing?
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Nov 18, 2009
This seems a little ridiculous. The droid obviously has a weather widget but we can't add it to our page.
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May 17, 2010
I just bought this phone off of CraigsList.When I try to launch the camera, whether using the dedicated camera button on the side of the phone or using the icon on the screen, the display goes blank for one second and then goes back to the Home screen.I called Tmobile, and they just had me do a hard reset which didn't have an effect.
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Jul 9, 2010
I accidentally removed my Clock and weather widget that displays on the home screen by default. Does anyone know how to get it back. I went to the HTC widgets but I don't see it.
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Aug 4, 2010
How do i put the stock weather widget on my home screen.The one it came with.When i go to add widget and select weather its gives me three options or size.The first needs it on home screen the other two are really small.
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Sep 22, 2010
How do i get the big clock/weather widget on my home screen? I love that thing. Anything else I should do to my D2 right off the bat?
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Feb 21, 2010
This is more of an annoyance, but whenever I reply to a message off the home screen widget, it automatically defaults to the home number for that contact, instead of replying to the same (cell) number that it was sent from. If I go into the messaging app, it works as it should (replies to the same number).
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Mar 30, 2010
From Android widget screen guidelines,we know that, home screen has 4*4 cells, and in portrait orientation, each cell is 80 pixels wide by 100 pixels tall. I think these are for baseline HVGA screen. How about for large screens and hdpi screens, do they still have 4*4 cells for widget and each cell in portrait orientation is still 80 pixels * 100 pixels?
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Oct 5, 2009
How can i launch an android activity via a specified class name of an activity?
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Nov 22, 2009
I am trying to create a small pop-up in my Android application to let the user choose from one of many items, ala a ListView. I am hoping to make it show up as a translucent box that overlays on the screen, as opposed to completely occupying it like Activities usually do. One technique for doing this that I've heard is possible is to launch an Activity in an AlertDialog box. This would be perfect - it's the ideal size and has a lot of the mechanical properties I'm looking for, but I'm totally unable to find any more specifics of this technique. Is this possible? And if not, what is the preferred way of accomplishing something like this?
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Dec 13, 2009
how to launch the Add Contact' activity in android?
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Jun 29, 2010
Im still looking for a widget to put my Incredible to sleep without pushing the power button. I am using No lock for the ability to use the touchpad to turn on but I hate using the power button to turn it off and leaving the screen on, even for 30 seconds, has to be draining the battery. (I am constantly on/off/on/off the phone throughout the day.)
I would like something I can put on the home screen that when touched, puts the phone to sleep. This will help save my power button in the long run as well. Ive searched and cant find anything.
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Apr 26, 2010
What's everybody using for an RSS app? I'm using NetaShare. I really like it, but it's lacking a home screen widget - I sorta wrote about it as part of my top 5 favorites, but I'm wondering if there might be something better that allows you to download and store RSS content on your phone and has a home screen widget.
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