Android :: Static Layout For Whole App That Must In All Activity
Nov 17, 2010Static Layout for whole app that must be in all Activity
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View 12 Replies
Android :: Setup Background Of Layout Being Static In Droid
Sep 4, 2010I have view to show the content alone have to scroll in the view on the layout.how to scroll the content alone not the whole layout.
Here my layout code for content details....
how can set static background for whole view.
Android :: Adding To LinearLayout Another Layout And Handle This Layout In Separate Activity
May 6, 2010I have an Activity which uses a layout with a LinearLayout in it. Now I want to create in runtime a subactivity which loads some other layout and add this layout as item of my LinearLatout.
View 1 Replies View RelatedAndroid :: Use Of Static Finals In Activity
Sep 8, 2010Why is the use of static final variables encouraged to declare constants over just final variables? The use of static sounds logical when there will be many instances of a class but is this argument correct when used for a Android activity. In fact, since the Class instance will be around even after the activity finishes and is eventually garbage collected, it seems like all these constants will still be in memory until the class loader is around. Also, does the compiler inline non-static final variables(ints and String) just like it does for static final variables?
View 2 Replies View RelatedAndroid :: Static Database Class To Use With Any Activity
Jan 5, 2010I am new to Android, and I haven't developed any app regarding databases on Android yet. So I have a few basic questions. I am after a good database class sample, that will let me to run the CRUD operations. I would like to use it as a static class
like: clsDB->Select("select * from clients");
or objClient->Delete(clientid);
I am wondering if someone, can share his database classes, if more people share the best. Also I have in mind to reuse this class in multiple ways, I will have services, activities etc...
Android :: Avoid Non Static Inner Classes In Activity?
Jun 17, 2010Since I seem to have caught two activity references in a heapdump, where the Activity is set to singleTask. Romain's advice on avoiding memory leaks includes: "Avoid non-static inner classes in an activity if you don't control their life cycle, use a static inner class and make a weak reference to the activity inside"
What does this mean exactly? I can't find any examples, positive, or negative for this rule. I do have some non static inner classes in my activity. Most of them are anonymous inner classes like this one. I see hundreds of them in the samples:....................
Android :: Activity Lifecycle And Static Variables
Jul 14, 2009I just ran into a situation where it looks like a static variable reference is persisted across activity sessions. I didn't expect that because I thought that when an activity exits, it's de-referenced and garbage collected. I am wondering if anyone can shed some (more) light on when the VM eliminates object references for Activities and Services and in particular when static variables get reset to default values?
View 7 Replies View RelatedAndroid :: Remove Static Variable Value , When Will I Close My Activity?
Aug 26, 2010I want to clear variable value when will i close activity.
View 1 Replies View RelatedAndroid :: Create Static Options Menu For All Activity Screens
Jan 15, 2010I wanted to create a static options menu for all my activity screens. I dont want to override onCreateOptionsMenu() in each activity. Since Menu class is an interface with a huge number of methods, its difficult to create a static object of the implementing class.
View 3 Replies View RelatedAndroid :: Static Fields In Activity Classes Guaranteed To Outlive Create / Destroy Cycle?
Oct 28, 2009I frequently run into the problem that I have to preserve state between several invocations of an activity (i.e. going through several onCreate()/onDelete() cycles). Unfortunately, Android's support for doing that is really poor. As an easy way to preserve state, I thought that since the class is only loaded once by the class loader, that it would be safe to store temporary data that's shared between several instances of an activity in a static Bundle field. However, occasionally, when instance A creates the static bundle and stores data in it, then gets destroyed, and instance B tries to read from it, the static field is suddenly NULL. Doesn't that mean that the class had been removed and reloaded by the classloader while the activity was going through a create/destroy cycle? How else could a static field suddenly become NULL when it was referencing an object before?
View 2 Replies View RelatedAndroid :: Call Non Static Method In Static SQLiteDatabase Class
Mar 30, 2010i want to display a msg to the user (msg box or Toast) when exception happend in a static SQLite Database class that i use. the problem is that i cant call a non static method in a static class , how can i handle this. this is the class
private static SQLiteDatabase getDatabase(Context aContext) {
and i want to add something like this in the class when exception happen but context generates the problem of reference to non static in static class.
Context context = getApplicationContext();
CharSequence text = "Hello toast!";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
Android :: Cannot Make Static Reference To Anon-static Method
Feb 7, 2010I'm having some issues with the old "Cannot make a static reference to a non-static method" error in my Android program. I am creating a sand falling game (similar to the Powder Game) and I created a class called Control to create a Control Bar at the bottom of the screen with a slider for brush size (that works fine) and a button to pop up a Dialog to allow users to pick the selected element. However, when I call DemoActivity.showDialog(2) from my code, it gives the static reference to non-static error (DemoActivity is the main activity of my application). I also tried changing it to just Activity.showDialog(2), but I got exactly the same error!
Here's my code:
CODE:................
I fixed it by adding the following to my Control.java code:
CODE:..........
And then calling control.setActivity(this); from my onResume section of DemoActivity.java!
Android :: Non-static Method Cannot Be Referenced From A Static Context
May 26, 2010I am modifying the source code here: http://thinkandroid.wordpress.com/2009/12/30/getting-response-body-of-httpresponse/
I get this error:
code:.............
This error is line 13 on the second box.
Replace Single Row View In Custom STATIC ListView - STATIC Data
Mar 18, 2013I have Eclipse Juno and I'm working on an app with that.
The main activity will have a scrollable menu that takes you to all the other activities.
So the general structure/outline right now:[HIGH]Relative Layout ImageView (header logo type thing) ListView (the actual scrollable menu)[/HIGH]Here's the problem though... I can't find any simple list tutorials. I can easily make a single line list work but I need to make a two line list and one that is static, not dynamic and no examples are out there for that. It's like if you want to make a 2 line list, you can only learn how to do it in the most code-heavy ridiculous way possible.
Essentially what I am looking for with the list is this: Item one: Centred, bold, non selectable title (Resources)
- Item two-??: two line list items, click-able to a new activity, title of the section on first line, description on the second line.
- Item ??: Centred, bold, non selectable title (Tools)
- Item ??-??: two line list items, click-able to a new activity, title of the section on first line, description on the second line.
Nothing dynamic that is ever going to change, no super complex wonkey calculations, just to simply have the data set in stone (preferably via XML) and to call it into the list.
I experimented with some of the other list views and no matter what I did, I could get, via editing the resources and NOT using Java, more that one item on a single line but it wouldn't format it properly according to the layout I guess because I haven't got the ID correct or whatever I don't know.
I mean, all the examples I've seen for a 2 line list are extraordinarily over-coded and just bloated. I mean I have a website I am still working on in C#/ASP.net that has far more complex things in it with half the code that I've seen for the examples of the two line lists.
I tried on my own to figure it out (I am decent with C# and vaguely familiar with Java, self taught, and programming for some other systems like Python, again all self-taught), but like ALL coding references, they're organised by the actual code you implement (that you don't know) instead of by what you want it to do (so you have to search the whole code base to find something that you don't know what it's called but know what it does). >:C
Android :: Static Vs Non-static Inner Classes
Mar 9, 2009I have been finding it convenient to extend Handler in many of my activities to handle messages specific to the activity. The handler sublass is an inner class of the activity and needs to access its state. I am wondering if there is any performance difference between making the handler subclass static and passing in the activity explicitly in its constructor or making the subclass an "instance class" and letting the vm worry about my accessing members of the containing activity.
The static approach:
CODE:.............................
Android :: Pages Activity Or Layout
Oct 5, 2010My app Consists an intro page with "Start", "About", etc..
I managed to create a functional version of the app by having the "Start" button call a new layout in which a new onclick listener is defined.
This doesn't seem clean to me that I@m defining a new onClick listener for each Layout I use and wonder how the correct way would be to create individual pages (including my "About" and any other screens I implement).
Android :: Implement Tab Layout Using Only One Activity?
Sep 14, 2010Official android dev website says that:You can implement your tab content in one of two ways: use the tabs to swap Views within the same Activity,.....http://developer.android.com/resources/tutorials/views/hello-tabwidget.html
I just wanna use tabs to swap views, no more than one activity. is there any sample code?
Android :: Passing Linear Layout From One Activity To Another
Feb 28, 2010For a rather crazy reason I am trying to pass a linear Layout from one activity to another. Should I use an intent extra for this? What would be the right way to create a Linear Layout in one activity and then spawn a new activity using that linear Layout.
View 8 Replies View RelatedAndroid :: Callback To Activity After Layout Has Completed?
Jun 3, 2009I want to find the dimensions of the various views in my layout. My understanding is this can only be done after layout is completed since layout is somewhat dynamic. So, after the activity calls setContentView() and then returns control on the main thread to the OS so that layout can occur, how do I get a notification that layout has completed so I that I can query the views for their dimensions? On a related topic, can I find out the status bar's height or least the screen's full size (from which the status bar's height can be calculate by subtracting my window's height)?
View 2 Replies View RelatedAndroid :: Can't Get Layout Info / When Creating Activity
Jul 22, 2010I have this element in my layout XML:
<FrameLayout android:id="@+id/FrameLayout01"
android:layout_width="320sp" android:layout_height="380sp"
android:layout_gravity="center" android:background="#99CC33">
</FrameLayout>
And I want to get its position on the screen with getTop(), getBottom() but I want to do it only once.
I was trying to do it on the onCreate(), but those methods return all 0 as response.
Android :: Access Large Layout In Activity?
May 13, 2010I am having layout which I want to render on to different sizes of mobile (like WVGA854). Resource structure is like
reslayoutmain.xml
reslayout-largemain.xml
By default it is taking layout main.xml file itself of layout. Its not pointing to layout-largemain.xml. its throwing exception:Activity can not start resource not found. So can any one guide me how can I acheive this and how to support mutiple screens with different layouts like large,small and default along with images specified in respective dip folders.
Android :: Setting Layout XML File To New Activity
Aug 18, 2009I created a new Activity and created a new layout file under res/ layout . after this,i also want to add a options menu file under res/menu.but how could i bind all these layout file with this Activity? I can't find any info in manifest file. or i missed it?
View 3 Replies View RelatedAndroid :: Loading More Than One Layout File For An Activity
Apr 29, 2010How can we use more than one layout file. I have implemented a cutom dialog.That means i have created an layout file for dialog. And one layout file for my activity. But whatever the UI items in dialog layout ile if iam using them by findViewById it is giving me null
I will explain in details here @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); applicationContext=getApplicationContext();
Dialog folder=new Dialog(this); folder.setTitle("Creating folder"); folder.setContentView(R.layout.create_folder); TextView tv=findViewById(R.id.folder_text); //Here folder_text is in my second layoutfile ie in create_folder.xml //In the above statemet i got the null to tv variable. folder.show();
Android :: Way To Connect A Layout View With An Activity?
Feb 4, 2010It displays the first view correctly but i want it to be connected to a java class so i created an FirstActivity class where i can control all my components in the first view but how do i attach the first.xml layout with the FirstActivity java class ?
View 1 Replies View RelatedAndroid :: Pass String From Activity To Layout?
Aug 19, 2010How can I pass a string from an activity to a layout?
I can pass arrays from an activity to a layout with the following activity code...
Is there a simpler way to just pass a single string instead of any array of strings, from an activity to a layout?
Android :: Update Activity / Layout From Within Broadcast Receiver
Jun 29, 2010I have a layout with two buttons, I want to disable or make unclikable one of the buttons when internet connection is lost and back to clickable when connection is regained. From my broadcast receiver I am calling another class(which extends activity and thus can call findViewById) which is attempting to change the main layout. App is force closing. What am I doing wrong here, any other ideas as to how to achieve what I am trying to do.
View 4 Replies View RelatedAndroid :: Way To Add A View To Overlap Other Views In Layout / Activity?
Apr 19, 2009Is it possible to add a view dynamically that overlaps other views in the layout. I have Linear Layout defined for the activity. As part of the Layout I have a custom View. The content changes dynamically and sizes appropriately based on the content size, with fill_parent for width and wrap_content for height. But what I want is, dynamically take over the full screen and then based on a click go back to the normal mode. Is there a mode to display a view where - in it can overlap all other views in the layout?
View 3 Replies View RelatedAndroid :: Layout - Start An Activity Without Moving Certain UI Elements?
Aug 3, 2010I'm trying to implement tab buttons bar and a navigation bar in my android application. The problem is, that I would like the navigation elements to persist. When starting a child activity, the nav bar moves.
How can I make these two elements "non-movable"?
Android :: Dynamically Adding A View To Activity Layout
Aug 18, 2010I have a custom view (an extension of a TextView) that I want to dynamically add to my Layout (don't want to include it in the main.xml file).
The book says to fetch the RelativeLayout using findViewById() in my java code then create a new instance of my custom view, then use addView on the RelativeLayout to add the new view.
I'm not getting any errors, but when I click my button to add the new view, nothing is happening (view isn't being added). Do I need to set additional properties on my custom view (layout width, layout height for example) in order for it to be shown?
Adding code
CODE:............
Android :: Add Tab Layout Without Letting Activity To Extend TabActivity?
Jul 21, 2010I want to add tabs to the layout of my activity, but I don't want the activity to extend TabActivity. The example in http://developer.android.com/resources/tutorials/views/hello-tabwidget.html only gave example of subclass of TabActivity.
Is there any way I can make it without extending TabActivity?