Android :: Switching Activities Back / Need To Make GridView Again?

Sep 22, 2010

I'm starting on Android and got a beginner question on switching between multiple activities. I understand i can go between two activities by invoking an intent and then returning with setResult(). What I want to know is how to jump between multiple activities. Specifically I want to learn about the process life-cycle. I understand how every activity is started ar onCreated(), but I'm not sure how to implement onResume() or onRestart() when I want to come back. So basically I have 3 activities: Activity1, Activity2 and Anctivity3. I start with Activity1 and then invoke Activity2 with an Intent, and Activity2 invokes Activity3. Using buttons. Now I want to come back to Activity1 from Activity3. I do the same thing here too. Make an Intent and call startActivity(Activity1_Intent). But it gives a runtime error.I think I need to implement OnResume() or onRestart(), but I'm not sure how to do this. In onCreate() I make a gridView, so when I come back, do I need to make that gridView again? If anybody could give a small explanation of refer to a tutorial it would be great.

Android :: Switching activities back / Need to make gridView again?


Android :: Switching Activities / Passing Data Between Activities

Jun 30, 2010

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?

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Android :: Blank Screen When Switching Activities / Fix It?

Apr 25, 2009

I've got a basic list activity with a few images that when you select one starts a new activity with a SurfaceView (based on the Lunar Lander sample). Some times the screen is just blank, from some debugging I can see that the background .png is being loaded and doDraw() is being called by the activity doesn't display anything for anything from 4 to 20 seconds. Other times the game activity is loaded just fine. I assumed it was some kind of garbage collection problem but I can't see anything in LogCat and the second activity is actually loaded, just not displayed for some reason.

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Android :: Multiple Activities Or Switching Views Manually

Jan 15, 2010

I have developed some apps for Android, and this questions stays always:

How should I structure my UI? Should I launch activity after activity and leave the phone to make the "back" button, or should I choose more optimized, but more complex to implement, way with switching manually Views and then manually doing the "Back" button functionality?

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Android :: Switching Activities In Phone Start A Fresh JVM?

Mar 18, 2010

Does switching activities in Android start a fresh JVM? It seems like each activity is meant to run as its own "main" method. If I have a singleton (via Guice, not an actual singleton in this case) should I expect to be re-creating it every time I switch activities?

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Android :: Switching Tabs From Activities Inside Host

May 9, 2010

Currently I have a TabHost implemented with 3 tabs each containing a separate activity. My question is how do I switch between tabs from within one of the activities that is located inside the tab host. ie say i have a button inside one of the tabs[tab 1], when i click on this button it should switch to another tab[tab 2]. To understand my problem click on the link below, http://stackoverflow.com/questions/2541802/android-switch-tabs-from-w.

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Android : How To Dismiss A Popup Window When Switching Among Tab Activities

Nov 21, 2010

I posted a StackOverflow question here (http://stackoverflow.com/ questions/4226898/dismiss-android-popupwindow-when-switching-to-a-new- tab-in-tab activity/4227034#4227034) but it didn't get any responses. Basically, how can one dismiss a PopupWindow when changing to a different TabActivity? The onPause() method in my TabActivity causes the app to force close.

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Android : Make Paging With GridView

May 4, 2010

I want to make paging with android GridView, but first I want to know if anyone has an idea of how to do that.

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Android : Way To Make GridView With Horizontal Scroll?

Jun 8, 2010

I currently have a GridView scrolling vertically, and everything works fine. But now that I want to change my layout and have the gridview grow on its width instead of height as it grows bigger I am lost. I have tried to simply change the column width each time an item is added to the gridview. But no vertical scroll appears, even though the items are added correctly. Is there a neat way to fix this, or must I make my own gridview?

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Android : Way To Make Horizontal GridView Scrolling?

Oct 5, 2010

The following GridView only scrolls vertically. Am I doing something wrong?

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Android : How Can I Make Horizontal GridView/ListView?

Apr 27, 2009

I would like to ask why GridView can only be vertically there is a HorizontalScrollView but there is a ScrollView , which is vertically i know GridView and ListView both extend from AbsListView which is only for vertical but i would like to ask why you didn't design more Horizontal widgets in the first place..

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Android :: Make A GridView Stretchable To Expand Column Width To Any Extend?

Jun 12, 2009

Anyone please help me with some code snippets to slove the problem.If anyone knows how to make an adjustable gridview please help me.

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Android :: Switching Back The Email Settings

Mar 3, 2010

How do I switch the settings from the free yahoo back to gmail and how do I get the mail screen back where you can swipe over and look at your mail back on it own screen just like the factory settings.

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Android :: Locale - Not Switching Back To Defaults

Dec 1, 2008

new to Android, G1 and the forums Wondered if any of you can help?
I have 4 things set up in locale
1) turn on silent when at work
2) turn on Wi-fi when at home
3) turn on silent 6:30PM to 7:30PM (when getting my son to bed)
4) turn on silent 11PM to 8AM (so no emails are waking me!) number 2 works fine, the problem however is with the silent ones, ALL of them never go back to the default (ringer at full volume) when the time is up or when I'm away from the location. any ideas? I don't have GPS on, but the distance from home to work is large so it can't think I'm still anywhere near there plus that won't affect the time related ones.

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Android :: Switching From N1 To Incredible / Steps To Back Everything Up?

May 5, 2010

Making the jump to the Incredible on Friday, just wondering if anyone knows if everything is automatically updated or if I have to manually back some things up.

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Android :: Any Application For Switching Phone To Silent And Back Again?

Jun 19, 2010

Any application that switches the phone to silent and back again without having to press the on/off button please?

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Android :: Make Variables And Multiple Activities?

Oct 12, 2010

How can I make a variable or object available to multiple activities or restarts of the same one.

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Android :: Make Temporarily Non-rotatable Droid Activities?

Dec 3, 2009

Is it possible to make an Activity temporarily not rotatable (like, turning it on/off in code, not in the manifest)?

One of my old apps crashes if you rotate while it's doing an HTTP lookup as the views are no longer attached when it returns. One of these days I'll fix it proper, but in the mean time it'd be useful if I could just make the thing not-rotatable while it's doing the lookup.

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LG Ally :: Want Switching Back To Velocity

Nov 26, 2010

I want to switch from raptor back to velocity .3. except that after putting raptor on i downloaded a new kernel. Can I put velocity on with the kernel I have now or do I have to change it to one from the velocity post? and if I do have to change it, do I change it before or after changing the rom to velocity?

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Android : Back Button On Emulator When Multiple Activities Are There In Single Tab

Oct 13, 2010

I have created two tabs, say TAB1 and TAB2. For TAB1, i have loaded one Activity, say ActivityOne, into TAB1 as Code...

When we click on that button ActivityOne_One will be launched under same TAB1. In this application i have two problems:
1) If i want to go back to ActivityOne under same TAB1 by using traditional BACK button on emulator it is not working..
2)ActivityOne_One is launching with no animation(like sliding from right to left) effect.

If anyone know about any one of these, give your advice.

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Motorola Droid :: 3G/1x Switching Back / Forth Area?

Nov 16, 2009

I'm a noob to the whole smartphone with data thing. Is it normal for my phone to switch in and out of 3G in an area that the verizon map shows as being a 3G area? At home I seem to stay on the 3G fairly constantly, but at work (which is at the edge of coverage) and especially while driving I seem to drop 3G quite a bit. It makes playing Slacker in the car not worth while. Just wondering if this is "just the way it is" or if I may have an issue.

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Samsung Fascinate :: Switching Back / Forth TW / Launcherpro?

Sep 11, 2010

I set the TW one as a 'remember' after I downloaded LP, but I want to switch back and forth to compare? I've looked all over, any ideas?

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LG Ally :: Switching Back To Clockwork From Amon_RA?

Nov 10, 2010

I can't seem to figure out if it's possible to switch back to CWM from drelisdee's amon_ra custom recovery. I assumed it would be as simple as to "flash" recovery from within ROM manager, and it would switch back, but apparently I was wrong since I can't seem to get it to reboot into clockworkmod's recovery interface.

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Motorola :: Switching Back To Swype 2.1 From 2.2 On Droid X?

Sep 14, 2010

I had updated my DX to 2.2 a few weeks ago without rooting and DESPISE the new Swype keyboard in 2.2. It's smaller, white, and doesn't seem to work as well as the one installed on 2.1 on the DX which is black and seemed to have bigger keys to Swype to on the keyboard. How can I revert back to the old Swype keyboard that I had on 2.1 but keep 2.2 installed? I was told to move the Swype.apk file from 2.1 to the system/app directory in addition to the old lib file to the lib directory and then reboot the phone. The only problem is when I try to paste those files over, it won't let me. I'm guessing I need to be rooted to have access to those directories? What's the easiest way to root a 2.2 Droid X? Also, I was told the files need to be given special permissions. Is there an easier way to install the Swype from the DX running 2.1 onto a DX running the first leak of 2.2 for the DX?

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General :: Switching Back To Stock Launcher

Dec 16, 2011

Just got Rezound today. Not sure I like the Sense launcher, but I know I like Launcher Pro.

And I seem to remember a way to switch back to the default launcher if I set Launcher Pro as my default but I can't find it in the settings menu.

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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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Motorola Droid X :: Switching Back To Previous Call?

Aug 12, 2010

There is a "switch calls" button when I answer a call on call waiting, but is there any way to switch to the previous call, hang up, and come back to the new call? I tested it today and I hung up on everybody.

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Motorola Droid X :: Switching Back To In Call Once You Leave?

Jul 27, 2010

If I am on a call and leave the dialer area to search for something, is there a way to get back to the phone menu that offers mute/end call/speaker an so on? I hit dialer to get back but it just shows the dialer and none of those options. I have to wait for the other person to hang up first to even end the call. So far this is happens to me with dialer one,stock dialer and takephone.

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HTC Droid Eris :: Switching Back From Google Voice

Jul 10, 2010

Don't burn me at the stake, but I want to switch back from Google Voice, but when I switch to carrier voicemail, it asks for a voicemail number, which I assumed was my phone number, but when I enter that, calling voicemail just goes to voicemail, as if someone called me. My reason for switching is because the SMS feature is about 25% accurate and when I turned that off, I stopped getting sotifications that I had received a Voicemail.

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Nexus :: Forced 3g Code - Keeps From Switching Back And Forth To Edge?

Jul 8, 2010

I recently saw a thread about the forced 3g code for the n1. Basically the code keeps you from switching back and forth to edge. Anyone know how to remove the settings that enabling this code has added

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