Android :: Create Transparent Activity In Droid?

Feb 1, 2010

I want to create transparent create on another activity.

How can I achieve this?

Android :: Create Transparent Activity in droid?

Android :: How To Create A Transparent Activity Programmatically?

Jul 28, 2010

I want to launch an Activity with a webView as its content from current Activity. This new activity needs to be transparent and webview should be in the center. I looked around the web but only solutions I found were using style xmls. I want to do it using pure code i.e. no xml declarations. if anybody has come across this then please shed some light.

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Android :: Create Transparent Window Without Starting A New Activity?

Mar 19, 2009

I have a 2D app. When the user presses a button, I need to quickly open a translucent 3D animation and overlay that on top of the 2D app. This is similar to the "Translucent GLSurfaceView" demo in APIDemo.

However, with APIDemo on G1, it takes about 100~200ms for the new Activity to come up. For me, this is too long. Is there any way to make it faster (to about 30~60ms).

My idea is to create a transparent Window object that contains a SurfaceView and hide it. When user presses button, the Window is shown.

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Android :: How To Create A Transparent Scrollbar

Jul 27, 2010

I have a transparent listview with a image as background. Now, i want the scrollbar as transparent too, i.e I must be able to see the background image through this scrollbar too.

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Android : Create A Transparent Textview On Click Over Running Screen?

Mar 22, 2010

How to create a transparent textview on click at the bottom of the running screen.

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Android :: Activity Should Be Transparent / But Has Black Background

Apr 22, 2010

My use case is writing an overlay controller activity for a landscape camera preview. I followed the instructions from a couple of tutorials for writing a transparent theme.When I start this activity from my root activity, the layout gets drawn correctly, but the background stays black. I tried to use @android:style/Theme.Translucent instead, but this Theme inherits the orientation from the calling activity (landscape) and thats not what I want.The application holding the camera preview is set to landscape view as it does not display the preview correctly in portrait orientation. (see old google bug report)What I wanted to do was to put an independent activity for user interaction interface in front of the camera surface holder (this activity should be set to 'portrait', or even better to 'sensor')

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Android : TabWidget Activity Handling - Does It Create New Activity EveryTime?

Apr 27, 2010

When a TabWidget is using intents to designate the target Activity for each tab, is there any special handling of those Activities on the Activity Stack outside of the default operation? For Instance, if my app has tabs A, B, and C, and I click them in this order--A, B, A, C, A, B--how will the Activity stack change? My understanding of the default operation, if startActivity() is called each time on the intent, would have the Stack keep loading up new instances of the activities: A, AB, ABA, ABAC, ABACA, ABACAB It's hard to believe that's how it works though... Seems like it would be a waste of resources and could be endless. Can anyone tell me how this will actually work?

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Android :: Laying Out Buttons With Transparent Backgrounds On Linear Layout With Non-transparent Background

Aug 19, 2009

seems pretty straightforward.


But doesn't work!

It scrunches the layout background as the background to each button, I want it to span all three buttons...

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Android :: Transparent Image Button - Can Be More Transparent

Jul 9, 2010

I have already found how can I do an ImageButton with Transparent background, but I would like to ask, how can I set the effective of it ?

How can I do it more transparent ?

My way as I do it: <gradient android:startColor="#aaffffff" android:endColor="#aaffffff" ...>

What should I write in to the color to be more transparent ?

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Create New Activity Or Update View Of Existing Activity?

Dec 24, 2012

I am working on developing an app and I am not sure when should I use a new activity and when should I update the existing view.

For example, lets say I have a view that shows a multiple choice question.Now, when the user selects his choices and clicks on say "Evaluate", I want to show the same question view but along with the right answers and explanations for each option. So does that mean, I should send an Intent upon a click on Evaluate or I should just update the view (i am not sure how)?

If I send an intent and show a new screen, how can the user go back to the next question without displaying the answers? If I don't create an new activity, how can I update the existing view that is already displayed?

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Android :: Can I Create An Activity For A Particular Task?

Mar 17, 2010

Here's my use case: The app starts at a login screen. You enter your credentials and hit the "Login" button. Then a progress dialog appears and you wait for some stuff to download. Once the stuff has downloaded, you are taken to a new activity. Exactly which activity you are taken to depends on the server response.
Here's my problem: If you go HOME during this login/download process, at some point in the near future your download will complete and will invoke startActivity(). So then the new activity will be pushed to the foreground, rudely interrupting the user. I can't start the activity before I start the download, because, as I mentioned earlier, the activity I start depends on the result of the download.

I would obviously not like to interrupt the user like this. One way to solve this is to refrain from calling startActivity() until the user returns to the app. I can do this by keeping track of the LoginActivity's onStop() and onRestart(). But I'm wondering, is there any way to create the activity while it is in the background? That way the user returns to the app and he is ready to go. otherwise he would have to wait for the new activity to be created (which could take some time because the new activity also has to download and display some data). Update: Guess what? I LIED! I could have sworn that starting this activity was causing it to come to the foreground, but I went back to test it again and the problem has magically disappeared. I tested in both 1.6 and 2.0.1 and both OSes were smart enough not to bring a backgrounded task to the front.

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Android :: Create Project And Activity Name

Nov 9, 2009

Once upon a time (Android 1.5 and earlier), when you would create a new project using the "android create project" command, it worked well -- you had an app that could immediately be compiled and installed.

Now, though, when you run that command, a number of places need fixing up, where ACTIVITY_NAME shows up instead of the activity name specified...depending on the API level you target.

For example:


leaves ACTIVITY_NAME in:


If I change the target to 1, 3, or 4, it works as expected. If I have the target as 2 or 5, it gives me the ACTIVITY_NAME.

So, I'm curious to know if:

a. This is a bug, or

b. I'm missing something (despite this example coming straight from the docs), or

c. I've lost my marbles

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Android :: How To Create A New Activity In Eclipse?

Sep 11, 2010

I've gone through a few guides and tutorials, and they're quite clear on how to start an activity (with intent). However, how do I create a new activity in Eclipse? I can probably do this by hand by then I have to modify the R file which is auto-generated. I can create a new XML layout.

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Android :: Create A ExpandableListView In One Activity?

Nov 2, 2010

I'm trying to create a ExpandableListView in one activity. I've looked in apis demos, and I've created ExpandableListView. The problem is, that I need to have this ExpandableListView in activity that is already created, and not in a new one.

I've used this code:


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Android :: Create An Activity With 2 Status Bar?

Sep 16, 2010

Can i create an activity with 2 status bar?

Can i put the status bar at the bottom of Activity?

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Android : Can I Create Tabs From Activity?

May 18, 2010

Is it necessary to use TabActivity for displaying Tabs. I want to display tabs from Activity.

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Android :: Want To Create A ListView Activity With An Image In Every Row

May 5, 2010

I have been trying to create a ListView Activity with an ImageView in every row. I've used this tutorial: The issue is that there are always some dividers missing whenever I run the example. The dividers are disappearing/appearing and flickering as i scroll the list (tested in emulator and HTC Tattoo). Strange is that the same example downloaded from the market (API Demos app) behaves correctly. Here is a screenshot of how it looks:

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Android :: Whether To Start Stopped Activity Or Create New One?

Feb 18, 2010

Long story short, I have a LaunchActivity which is always called by LAUNCHER (i.e. the home screen). It then starts LoginActivity and then closes itself.This is the flow:
User launches app
LaunchActivity starts, starts
LoginActivity and then calls
finish() on itself (At this point
LoginActivity is the only Activity
on the stack)
User press "Home" button, stopping
User launches the app again When the app is launched for the 2nd time, two things can happen:
LaunchActivity starts, finishes
itself and then STARTS LoginActivity
LaunchActivity starts, finishes
itself and then CREATES
LoginActivity, so there are now two
LoginActivitys on the stack.
(2) seems to happen when I restart Eclipse and the simulator (yeah I know, black magic). Some extra info: I'm not using any start flags and my manifest doesn't have any launchModes defined.

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Android :: Create Support Application To Activity?

Feb 22, 2009

In case there is anybody out there who would like to create a support- application to an activity that is already used by everybody on the Internet, the moment has come! I'm particularly interested in developers with deep knowledge of Linux services and/or the Android GUI. Note: this is not yet another password vault or similar, this is about *eventually getting rid* of passwords!

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Android :: How To Create Multiple Instances Of An Activity

Feb 19, 2010

I want to create multiple instances of an activity in the same process. Should I use FLAG_ACTIVITY_NEW_TASK flag like the code below?


This code is executed in class A to create another instance of activity A.

This question, will this code create another task? As I understand is a process can only have one task. Does it mean the two activities will exist in different tasks? That's what I want. I want the two activities to be in the same process.

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Android :: Create A Class Which Not Extended Activity?

Sep 23, 2010

How to create a class which not extended Activity & how can i use it class?

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Android : When To Use Layouts / Create New Activity Classes?

Mar 3, 2010

I'm writing a game for Android. My GUI has the following basic screens (i.e. the information and interactions required on each of these would take up the whole display):

Main menu (let you start a new game, enter settings, see high scores, see about screen)
Game screen i.e. where the actual game is played.
Settings screen.
High scores screen.
About screen (i.e. credits and a back button)
Game over screen (arrived at when the game ends)
Pause screen (pauses game and can access settings)

The following are some example transitions the user might make between these screens:

1->2->7->2->6 (starts new game, pauses game, returns to game, finishes game)
1->5->1->4->1 (views about screen, goes back to main, views score screen, goes back to main)

I'm really confused about when to have just one activity that switches layouts and when to create new activity classes. For example, when my game loads, I have a "main" activity that loads the main menu layout. When you click the settings button, I launch a "settings" activity (which uses android's standard settings GUI). For the moment, when you start a game, I switch the layout of "main" to the game screen layout (which just contains one big surface view). I'm not really sure what the best way to integrate the game over screen, high score screen, about screen etc.

Creating a new activity for each seems really heavy weight to me. There's quite a lot of boiler plate code involved for each activity. Plus, communication between activities seems like a pain as you have to use bundles. Using just one activity means I can just share object fields directly. It seems that using layouts for the above would be more compact. Can anyone give me some recommendations?

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Android : Can't Create Multiple ListViews In One Activity

Mar 23, 2009

I want to have multiple listviews in my activity. Every listview will have a different adapter and every item in the listview must be clickable (other actions for every listview).

So my problem now is that I can't create multiple clickable listviews. I have one listview like this <ListView android:id="@android:id/ list".. and the other listview looks like this <ListView android:id="@+id/ flightList"

The first listview looks like this in my activity hotelList = (ListView)findViewById(;

the second: listView = (ListView) findViewById(;

I can click on the first list and it does what it has to do, but i cant do anything with the second list.. probably because it hasn't the android:id/list declaration. does someone knows how I can solve this problem or other suggestions how I can get multiple lists in 1 activity.

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Android : How To Create Multiple Instances Of An Activity?

Jul 1, 2010

I was wondering is it possible to create multiple instances of a single Activity in Android?

I currently start my own inCall screen for a Voip Test by using the following code...

This allows me to start the Activity fine. However when I call it for a second it just returns to the Activity already created rather than creating a new Activity and placing it on the stack.

I would like to be able to create the activity multiple times so that I have two or 3 Activities on the stack and the user can switch between them, using Home, Back buttons etc... Is this possible and if so what am I doing wrong?

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Android :: Create A Photo Sharing Activity?

Aug 31, 2010

How can I create a custom activity that can be chosen by the user via the share option when viewing the photo gallery? I have options like "Share with Facebook, Twitter, FlickR" etc. But I want to add my own option in there.

i.e. Go to "Photos", then click the "Share" button. You will be presented with a bunch of share providers. What do I need to do to get my activity in there?

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Android :: How To Create Icon On Home Screen Through Activity

Oct 7, 2009

I would like to have icon created on home screen through an activity . All the icons of my activities are on main menu, once i click it my activity will be launched instead i need an icon on home screen which when clicked activity should be launched.

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Android :: Create Expandablelist View Activity With Checkboxes?

Feb 11, 2010

now i dont know which event to implement to handle checkboxes in list when i click on checkbox it expands the list.... how to distinguish list click with checkbox placed in expandable list? or kindly refer me to tutorial same as expandablelist view with checkboxes.

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Android :: ListView That Uses Linkify To Create A Link To Another Activity In My App

Jul 15, 2010

I have a ListView that uses Linkify to create a link to another activity in my app. the url looks something like content://com.myapp/activitiy/view?param=blah

This works fine every time.

However, in another view, I'm trying to call some code like this:


But for some reason this doesn't seem to work. It doesn't trigger my activity (and in fact it blows up if i dont include the setAction() call. How am I supposed to create the Intent such that it acts the same way that Linkify does...?

Now i realize i can setup the extras and then handle it in the activity, but that just seems like duplicated effort.

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Android : Create A Surface Object Without A Foreground Activity

Jul 6, 2010

I have a function that needs a Surface object to work. I'd like to be able to call that function from a background Service without starting a foreground Activity. Every Surface source in the API that I can see, though, requires a View that's laid out before the Surface becomes available. Are there other ways to create a Surface that I am missing, and can you point me to them?

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Android : How To Create Intent Using A String To Launch Another Activity?

Mar 5, 2010

The first activity in my app needs to load a small amount of data from a text file. Two strings and an integer. Once I load the data, I want to use one of the strings to create an intent, that will launch the next activity.

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