I am trying to dynamically create a interface using a relative layout. I would like to align different views with each other and am finding the need to know the id of a previously created view so that I can use them in subsequent layout params.
Is there a preferred or best way to generate or create ids for views that are created dynamically?
View 2 Replies
I want to populate a table, defined in layout xml file through the programmatic way. I have define Table with a single row defining its header, with all the attributes set. Now i want to know a way so that i can just replicate that header row in the table with new content.
I tried using inflator inflate(int,view) method, but at runtime it showed up with error.
Here is the XML code for the layout file defining the table
CODE:.................
I'm writing a task manager app that downloads a list of tasks and subtasks from a server and creates a new checkbox for each item and adds it to a linear layout (called ll below). The problem I'm having is that I cannot set the "layout margin left" using Java like I can with XML (this is for the subtasks to indent them a bit on the screen). I can set most other XML properties, but cb.setMargins() doesn't work (says undefined for type checkbox).
View 1 Replies View RelatedI suspect the answer is no, but it only seems possible at the moment to update an AppWidget via a RemoteViews object which is inflated from a static XML file.
Is there any way to build a RemoteViews object on the fly, or edit the layout of one that is already there?
The requirement is that I don't know until runtime exactly how many ImageViews I want to display in my AppWidget.
Currently I am setting all the ImageViews I may need in the layout XML file as invisible and then just making the ones I want visible, but am I then limited to what I have in the XML file to start with. It would be far more convenient to be able to just add the ones I need on the fly, and set their properties when updating.
Anyone know if there is a way to do that?
How can i retrieve the text of a dynamically created radio button
selected by the user? Here's my code...
I'm trying to learn how to build apps for Android. The first simple app, which will become a component of a bigger app I hope to build, is to have a button on the screen where, when tapped, it adds something new to the view. For instance: Imagine a layout that only has a button:
[Create!]
When that button is pressed, the view gets a new row added to it:
[Create!]
A Something!..............
In my main.xml layout file, I define a FrameLayout. Then in another layout file (say overlay.xml), I define another layout.
At runtime (onCreate) I want to create a new View object, set it's layout with overlay.xml, and add it to the frame dynamically. I need access to the elements of the overlay, to change text etc.
I use a LinearLayout and first I have a MapView and below the map I have a TableLayout with informations fields.
Now I would like to add additional information fields (e.g. a new TableLayout) when the user select a specific menu item on the Options Menu. I would like to have these fields either between the MapView and the TableLayout, or on top of the bottom area of the MapView.
How can I add this TableLayout with additional information fields dynamically after the user has selected a menu item? How can I show it below the MapView or on top of the bottom area of the MapView?
i have tried almost everything i can think of to center a programitacally created table in a pragmatically created layout. I've tried all the usual layout params center setting but still nothing: Score List is a set of pairs of scores (Name, Score). I'm just looping through and adding them to cells in a table and its always aligned left when i run it.
ArrayList<Score> scoreList = new ArrayList<Score>();
public LinearLayout getHighScoresView(Context context) {
final RelativeLayout.LayoutParams layoutParams = new
[code]....
Dynamically i am creating the linear layout and adding the views to linear layout every 5 sec i need to update data to linear layout from db when i check logger output it is adding to linear layout but gui it is not updating for every 5 sec updation i am using scheduleatfixed timer task.
View 2 Replies View RelatedI need a LinearLayout to contain 3 TableLayouts, and I can't get it to work. This is where the problem is I'm sure:
mTableLayout.addView(mLinearLayout, LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT); mLinearLayout.addView(nTableLayout, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); mLinearLayout.addView(oTableLayout, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); mLinearLayout.addView(pTableLayout, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
How Do I make this work? I can get it to work just find when I only add a single child view, but when I have multiple children view objects my app crashes.
I am creating a layout dynamically when the activity first starts, the problem is when the screen is rotated it is hitting the database again to create the layout. How can I save the layout so it isn't recreated each time the screen orientation is changed?
View 5 Replies View RelatedIs there (or should there be), a generateId() method for dynamically generated Views? Take the RadioGroup example in APIDemos|App|Views. Radio buttons are added dynamically. For each button, you have to call setId(). To be notified when a radio button is selected, you register a onCheckedChange listener on RadioGroup and the callback method is oncheckedChange(RadioGroup, int checkedId). Since we are notified only the id of the checked view, shouldn't there be a way to uniquely generate the id? Say, a View.generateId() method... In the example, the ids are statically defined in ids.xml. However this limits the number of radio buttons. I have a real world example too: a Radiogroup with each choice representing a Wifi hotspot. So one cannot know in advance the number of hotspots.
View 10 Replies View RelatedI have a remove assistant app, which allows customers to perform a subset of functions of a desktop application, untethered. Results are communicated back & forth via messages left at a license server. In order to have a single source for the logic of the assistant, yet run on multiple platforms (Swing, MIDP, & Android), I write a driver composed of Database, Network, & Display pieces.
The Android driver is nearly complete, but I run into a brick wall when it comes to Tabs. All views are instanced calling code, not XML defined. I already have the view before I try to add it.
I tried sub- classing TabHost:
CODE:.................
As is shown in the code, it errors in setup. Looking further down in setup() I will also get this exception too: Your TabHost must have a FrameLayout whose id attribute is 'android.R.id.tabcontent
Is there a way to trick setup() into instancing me mTabWidget & mTabContent members?
I am trying to load textView and CheckBox view dynamically to a LinearLayout. i am getting some Orientation problem while doing the same.I want these two view in a single row but i its coming as in different raw.
Below is may code:
CODE:..............
layoutxml is
CODE:..................
To use as an example: lets say that I have 2 EditTexts and one Button that I'm using as a login form. I want the EditTexts to be the same size, one after the other, with the login Button half their widths. Something like this:
The only way that I've been able to find to make the button 1/2 the width (but still maintain it's dynamic sizing) is to use a TableLayout with an empty view as the first field. Something like this:
CODE:.............
That feels like a god-awful hack and there has GOT to be a better way. Do you know of one?
I'd like to dynamically apply styles to my views at runtime.
Is there any method like View.setStyle(int style)?
Anyone who knows a good way to generate/create a barcode from a String in Android?
View 2 Replies View RelatedI have a ViewGroup that gets inflated dynamically. I have set Id's to all the inflated views. I am still not able to retain the inflated ViewGroup whenever the orientation is changed. Any particular check that i am missing here ?
View 1 Replies View RelatedI am a new developer in android, and I see some examples about activity, but I don't know How can I create the widget dynamically?
View 2 Replies View RelatedHow can you dynamically create a CheckedTextView in android [without creating a new implementation]?
It seems CheckedTextView is abstract ... (which does not make any sense at all) because I keep getting the compile time error: "Cannot instantiate the type CheckedTextView"
Using Android 1.5
Kindly somebody tell how to create rows dynamically via code in TableLayout.
View 3 Replies View Relatedi have to create expandablelistview is dynamically.how can i do.
View 4 Replies View RelatedI want to create a full-screen page that looks like this:
---------------------------------------
| -------- --------------------------- |
|| || TextView ||
|| | --------------------------- |
|| Image | ----------------- -------- |
|| View || || ||
|| || TextView || ||
|| || || Image ||
|| || || View ||
| -------- ----------------- | ||
| --------------------------- | ||
|| TextView || ||
| --------------------------- -------- |
---------------------------------------
where each ImageView takes up at most 20% of the parent layout's width.
Primary question: Really...what is the best way to do this? After hours of searching, the best idea I can come up with is to get the screen's width and simply set the views' widths to be a max of 20% of that. However, this intuitively does not seem like a best-practice solution. (Eg. if the application wasn't running in full screen, this solution wouldn't work.) A LinearLayout won't work with the way the page is laid out (appears I have to use a RelativeLayout). And I think it would be preferable to set the views' widths based on the parent view's width (as opposed to the screen's width), but I'm not clear on how to do that either, because at the time that I'm trying to set up the widths of my children views, parentView.getWidth() returns 0. Does anyone have any good, clean solutions for how to create a page as shown above?
Secondary question: Does anyone know how to wrap text around images as shown above? After still more hours of searching, I couldn't find a solution for this; seems like you need to stitch together a couple of TextViews. Is there a better way that I'm missing?
I am creating one quiz application, for question page i have created one view by using Linear layout in that i have added four TextAreas, first TextArea for question and reaming three are for answer cell. so now, when user select the answer cell i want to show next question screen for that i am thinking of creating new view. means some questions may have two answers so i want to create that at run time. how to create new view at run time ? and how to switch for new view.
View 2 Replies View RelatedThere is a given set of predefinied Views that can be used in layouts for AppWidgets. How can a customized View added to this list?
The minimum requirement is that the class is annotated with RemoteView. What else is necessary to be acceptable as view in the layout.xml?
I have a case where I have add to listview textview based on no of messages.
1) I am doing like this for.
CODE:..............
I want to create an activity, which shows a question with 4 answers, and at the bottom of the screen i want to place a timer. i have already found timer example, and i created a question with the answers. the problem that they are 2 different projects and activities, and i am looking for the best way to implement it. i think i can't show 2 activities on one screen, but i can show 2 views or shell i use the ViewGroup, or maybe to copy-paste one of the activities code to another ( its the easiest way but probably the most ugliest way to implement it).
View 2 Replies View RelatedI am parsing the url to display the contents in it, my requirement i have to display the each content in separate textviews.
For Instance: Let us assume the contents in that url are FootBall, Carom , chess, VolleyBall and so on . I want to display FootBall as a individual textview similarly others. so i cannot declare the textviews in xml what i usually do.
CODE:................
So i planned to create textview via java code
This is my parsing code which parse the url contents and store the result in a string array namely san_tagname; depending upon the length of this variable i want to create number of textviews.
CODE:..................
I have an xml layout that will display a grid made up of textviews within tablerows. The textview names are cell00, cell01, etc. At runtime, my program will determine which cell needs to be changed.
Is there a way get format a name so that it can be passed to the findViewById method at runtime? For example, if cell00 is needed, how can I generate the parm in this code?
TextView currcell = (TextView) findViewById(R.id.cell00)
Something like "cell"+00 doesn't compile because the findViewById method doesn't accept a String type. I don't want have every textview name in the grid hardcoded in the program - there must be a better way.