In the Tab2 of TabActivity in the APIDemo example, it has this method to create a View object for each tab. code...
Can you please tell me how can I create a View for each tab from an xml layout file? For example code...
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How to create an HTTP request object of POST type in android? Which class need to be extend or what method need to implement? How to establish connection to a server? Actually i want to connect to a microsoft exchange server, and then i have to send a request to it using HTTP.
View 8 Replies View RelatedI like to know how can i clone a view object which is already there in the view hierarchy, so that it can be added to the same view hierarchy again.
View 1 Replies View RelatedI tried to use AlaramManager . First i used <receiver> in the manifest file but it is not working well. now i want to use registerReceiver (). But can some one please ell me how can i use it. It requires the paramiter IntentFilter and BroadcastReceiver. Can some one please tell me how can i create the object of IntentFilter. I am so much depressed. If i will not get the solution of this then i will have to do susite.
View 3 Replies View RelatedIs it possible to create a ColorDrawable object without using xml? I would like to be able to change the backgroundColor of a view programmatically, using setBackgroundColor() or setBackgroundDrawable() or setBackgroundResource(), but I want to be able to specify the RGB values in code, not XML. Is this possible?
View 1 Replies View RelatedCan anyone tell me how to create the object of c++class in android through ndk my activity is code...
View 1 Replies View RelatedKindly give me the way to create a 3D object in android application
View 1 Replies View RelatedI create a WebView object in the OnCreate function. Now I need to be able to pass this same object to other functions in the code, such as the onOptionsItemSelected function. I currently have it where I just create a new WebView object in each function where I need it, but this slows down the code since it has to recreate it and such.
View 1 Replies View RelatedI 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?
View 5 Replies View RelatedIs it possible to create another classes object in a class in android. code...
View 4 Replies View RelatedThis is a followup to this post: http://stackoverflow.com/questions/3897176/findviewbyid-in-a-subclassed-surfaceview-throwing-runtimeexception Based on Romain Guy's feedback (which I'll accept shortly as it is a solution), I'd like to obtain the calling Activity from within the View, so that I can use it to obtain the desired Text View resource. I don't see any methods in View that return Activity. What is the proper way to do this? Or is there a better alternative for working with TextViews from within another View context. Basically, I am calling setContentView(R.layout.xxx) in onCreate() (as usual), so I don't really have a way to pass in references to additional TextViews unless I awkwardly retrieve the View after setContentView and then make calls on it.
View 1 Replies View RelatedWe see API for saying which is the next focusable view.. however during the event handling we want to set the focus to xyz view object pro grammatically . Is that possible.
View 3 Replies View RelatedI have a very simple requirement. I have a View object, lets say an ImageView object. I want to move this ImageView object in a circle.
More specifically, I want to move it along an arc, which is not a complete circle. I found in Android Documentation that comes with SDK that we can create a path from an arc but it does not mention how to use this path to make an animation that goes along that path.
Please note that I dont want to rotate the image. I have to move it in a circular path.
I have a problem with my DDMS in eclipse. In the logcat view appears only this failure: Logcat View fails with "Could not create the view: For input string: "our" "
I uninstalled and reinstalled the adt and ddms already without any change. I can use the logcat in the command line (tools- adt logcat) but this is not as comfortable as using the logcat in eclipse.
More details of this failure message are:
CODE:...............
I am trying to create object of FileTransferManager manager = new FileTransferManager(this.connection);
it is giving error, the same error gives for , OutgoingFileTransfer otransfer = manager.createOutgoingFileTransfer("nimit@pc3/Smack");
I am testing demo app for android, smack library and openfire server (FileTransfer settings are enabled in open fire).
What is solution for this.
But when I put
try{
FileTransferManager manager = new FileTransferManager (this.connection);
}catch(Exception e){}
I have a Adapter View derived class (say GridLayout) in which I arrange views in a grid. When items in the grid exceed the height of the GridLayout( or screen) I want a scrollbar to appear. I have handled scrolling in onTouchEvent. But the problem is the scrollbars don't appear. I have set the vertical scrollbar to be enabled, but no use. The docs say the scrollbar appears every time the scrollTo or scrollBy methods are called.
View 2 Replies View RelatedI want to share streams of a socket connection between the activities of a tab view. In particular the tab activity creates the socket and gets the i/o streams,so i want that tabbed activities use these streams to retrieve informations without reconnect to the server each time i switch from a tab to another. I know i can use the application class to have a global state, but i don't know how.
View 4 Replies View RelatedI think this is a pretty simple question but I'm having trouble finding the answer out there.I'm developing an android application (currently developing against v1.5 API) and one of the activities use a ListView. I want to be able to set the properties of each List Item based on the state of an in memory object rather than the state of the view or list item.Here is a simple example....say I have a Person class who's public members are defined as follows. Code...
View 1 Replies View RelatedThis subject originates here: http://groups.google.com/group/android-beginners/browse_thread/thread...
To sum up:
When I click on an item in the ListView, the background color that gets changed is not that of the clicked item but instead of the other item in the opposite side relative to the middle item:
1 <-- I click here 2 3 <-- Acts as a mirror 4 5 <-- This is the one that gets changed
1 2 <-- This is the one that gets changed 3 <-- Acts as a mirror 4 <-- I click here 5
This problem persists even when I use CheckedTextView like what is suggested in the post.
I use the latest stable SDK.
This problem occurs when the target platform is Android 1.6, 2.0 or 2.0.1.
The problem does not occur when the target platform is Android 1.1 or 1.5.
However, the problem will also occur when the program is compiled for 1.5 and run in 2.0.1.
The simple problematic code can be found here: [url]
There I also put the screenshots showing the problem: demo01.png: I click an item. demo02.png: the clicked item doesn't get changed but the reflective item does.
Is this a bug in newer Android platforms?
If it is intended, what is the reason and could you please show me how I should fix my code?
I want to get the current focus view in my Service to check the view is a EditText and append some texts in it (for all EditTexts, not only in my application).
I found some methods to do this, like Activity.getCurrentFocus() and Windows.getCurrentFocus(). But these methods are used in a Activity.
How can I use these methods in a Service? Or is there another way to do?
I have a custom view that draws to a canvas. I am trying to invoke changes to the canvas when the user pushes a button from the activity that this view is tied to. Currently, I am attempting to do this by calling a public method, called setNewDrawable, that I created inside the view.
The debugger is giving me different values for the view ID depending on whether I'm inside setNewDrawable or inside the Overridden onDraw method when I post an Invalidate.
For example the debugger variables show: (This - MyView id=830067720176) or (This - MyView id=830067712344) in setNewDrawable and onDraw respectively. This makes me think I basically have two copies of the object and I am essentially interacting with the wrong one.
How can I get information to my custom View in order to determine what it draws?
Here is the code I am running...
Does someone know how to save and restore an object to a file on android ?
View 2 Replies View RelatedI want to convert this into a File object, and only a File object - I need to pass it to another constructor that requires a File. How can I convert a URI like this to a File object? If I try File newFile = new File(myURI);I get an error in Eclipse suggesting that I should convert the URI to a String. Supplying URI.getPath() in the constructor doesn't help either.
This relates to the 'How can I convert android.net.uri object to java.net.uri object?' question, which unfortunately seems to have no good answer, but I want a File object out, not a java uri. I don't mind if I have to write it to a bytestream and back again - whatever is the best way.Apologies if I'm cross-posting my own question, but I thought I might need to make things a bit clearer.
My purpose is very simple : each 1second, I want to redraw an object on different place on background. I do not know where my error on this code below. Here is my code:
public class My_View extends View{ private Bitmap mBackground_img;
private Drawable mMoveObject; private int mObjectw,mObjecth; private int Dx,Dy;
private Handler myHandler = new Handler(); private long lasttime;
public My_View(Context context,AttributeSet ats,int ds) {
super(context,ats,ds); init(context);
} public My_View(Context context,AttributeSet ats) { super(context,ats);
init(context); } public My_View(Context context) { super(context);
init(context); } public void change() { invalidate();
} private void init(Context context) {
Resources res = context.getResources();
mMoveObject = res.getDrawable (R.drawable.lander_firing);
mBackground_img = BitmapFactory.decodeResource(res, R.drawable.my_pic);
mObjectw = mMoveObject.getIntrinsicWidth();
mObjecth = mMoveObject.getIntrinsicHeight();
Dx = Dy = 0; lasttime = System.currentTimeMillis() + 1000;
Thread mthread = new Thread(null,doBackground,"Background");
mthread.start(); } private Runnable doBackground = new Runnable() {
public void run() { long now = System.currentTimeMillis();
if(lasttime < now ) { Dx = Dx + 10; Dy = Dy + 10;
lasttime = now + 1000; myHandler.post(change_view);
} } }; private Runnable change_view = new Runnable() {
public void run() { change();
} };
@Override public void onDraw(Canvas canvas) {
canvas.drawBitmap(mBackground_img,0 ,0 , null);
mMoveObject.setBounds(Dx, Dy, Dx+mObjectw, Dy+mObjecth);
mMoveObject.draw(canvas);
} }
My question is almost exactly this question:
Clone textview to append it to a ViewGroup
However, I was inflating a view, and then attempting to clone it at the object level for performance reasons (I don't want to parse XML every single time), so that answer doesn't help me. View.clone() is protected and it apparently doesn't have a copy constructor. Is there any way to do this?
In my program I have a custom view object. Inside the view class is a method called foo. For some reason when I call foo from my activity, it doesn't fire. Here is the code:
XML of the custom view:
<com.company.application.MyView android:id="@+id/my_view" android:layout_width="wrap_content" android:layout_height="wrap_content" />
The activity code:
public class Main extends Activity { MyView mView;
/** Called when the activity is first created. */
@Override public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState); setContentView(R.layout.main);
LayoutInflater li = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = li.inflate(R.layout.main, null); mView= (MyView) v.findViewById(R.id.my_view);
//A button to fire the method inside foo() Button switchLeft = (Button) findViewById(R.id.switch_left); switchLeft.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { callTest(); } } );
} public void callTest() { Log.w(this.getClass().getName(), "clicked left arrow");
mView.foo(); mView.postInvalidate();
} }
Finally here is foo:
public void foo() { mBackground = mContext.getResources().getDrawable(R.drawable.temp_canvas); Log.w(this.getClass().getName(), "background set");
}
The first log is always written when the button is pressed, but the second log is not because foo never fires. What is the deal here? Upon request, the full view
public class MyView extends View { Drawable mBackground; Context mContext;
public MyView (Context context) { super(context); mContext = context;
mBackground = mContext.getResources().getDrawable(R.drawable.leftarrow1);
} public MyView (Context context, AttributeSet attrs) {
super(context, attrs); mContext = context;
mBackground = mContext.getResources().getDrawable(R.drawable.leftarrow1);
} public void foo() { mBackground = mContext.getResources().getDrawable(R.drawable.temp_canvas);
Log.w(this.getClass().getName(), "background set"); }
@Override public void onDraw(Canvas canvas) { Paint paint = new Paint();
paint.setStyle(Paint.Style.FILL); // draw a solid blue circle
paint.setColor(Color.BLUE); canvas.drawCircle(20, 20, 15, paint);
// draw a test background mBackground.setBounds(0, 0, 300, 400);
mBackground.draw(canvas); }
}
Does anyone know how to construct a typeface object from a file? Say i have a .ttf file on the SD card, how do i load it into my app?
View 5 Replies View RelatedI have a library that takes a File object as a parameter to one of the functions.
I am getting the file like this:
this.openFileOutput("myFile", MODE_PRIVATE)
I need to load this file from the system, however, I don't know how to convert FileOutputStream to File. Or is there another way of doing this?
Say I have some simple class and once it's instantiated as an object I want to be able to serialize its contents a file, and retrieve it by loading that file at some later time.. I'm not sure where to start here, what do I need to do to serialize this object to a file?
View 2 Replies View RelatedSpecifically, I'm curious about how they did the phone number entry part, where they can add additional phone numbers fields when the user clicks the little add button. I initially thought that was done with a ListView, and I got a ListView to work, but the ListView scrolls independently of the rest of the screen, which looks bad.
So I was wondering what the best approach for something like that is? Am I on the right track with the ListView and just missing something allowing me keep it from behaving like it's own scrollable container? Perhaps a custom AdapterView or maybe just with a TableLayout dynamically adding rows? I'm just not sure what would work the best.