We 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.
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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 GridView displaying buttons to different screens of my app. When this grid screen, the first cell is selected. Is there a way to programmatically have no cells selected when the screen launches? Or do I have to hide the selector?
View 1 Replies View RelatedI am noticing a clicking noise whilst my camera is focusing on an object. It actually sounds like it's coming from the lens. It seems to have started since I did the software update but I did also drop the phone last night. The camera is working fine and I am not really that worried, I was just wondering if anyone else has experienced this and if it was anything to start worrying about?
View 3 Replies View RelatedIn my app i'm setting background to each child views in listview. So that listview default focus ( orange color ) is not focusing. Is there any way to set both ( listview focus & child view background)?
View 1 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 RelatedIf I want to execute the focused item on the view, I need to select focused item and press enter. Now I want to find another way to execute it without using click action. Does everyone know the other way? Thank you very much.
View 2 Replies View RelatedI have made custom view for autocompletetextview, but when I am trying to select any entry from that dropdown using touch or dpad, it is not showing any focus on it, so what can be problem in that?
My code is as under.
Custom view adapter code regarding to UI:
CODE:.....................
I have a problem with my app, it haves a lot of activitys, two of them haves googlemap views. My A activity haves a full mapview and my B activity haves a small map view. OK, when i am on the B activity and press back key somethimes until i return to my A activity, the map of my A activity shows with errors, with a black zone in the down part of the window. THis only happens when i press back from the B activity. Code...
View 1 Replies View RelatedI have ListView, where each row contains two edittext boxes. I'd like on list item selected(using Dpad) place focus on first edittext box. I tried the following code, but it does not work: ListView list = (ListView) findViewById(R.id.list); OnItemClickListener click_listener = new OnItemClickListener() {public void onItemClick(AdapterView<?> parent, View view, int position, long id){EditText box1= (EditText ) view.findViewById(R.id.box1); box1.requestFocus(); return ;} list.setOnItemClickListener(click_listener);}
View 2 Replies View RelatedHow can we give text view focus?
Tell briefly with example.
Currently, I have a layout which contains a Button, a TextView and an EditText. When the layout is displayed, the focus will be automatically put on the EditText, which will trigger the keyboard to show up on Android phone. It is not what I want. Is there any way that I can set the focus on TextView or on nothing when a layout is displayed?
View 6 Replies View RelatedI open an Activity which has a number of elements... some TextViews, some Buttons, and an EditText. For some reason, when the activity starts, the EditText is focused by default, which causes the keypad to appear hiding the screen. I only want this EditText to be in focus if the user clicks into it. How can I ensure that this View isn't in focus when the activity starts? I've tried calling requestFocus() on one of the buttons, but it hasn't changed anything. Ideally, I don't want anything in focus at all.
View 7 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 RelatedIn 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...
I 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 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 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...
I have an Edit Text field for the user to enter their weight in lbs. How can I override the traditional keyboard and display the numeric keypad instead?
View 2 Replies View RelatedMy activity has a set of buttons on the left half of the screen and a ListView on the right.Initially the focus is on the first button. When I browse the buttons by pressing DOWN arrow key and then press the RIGHT arrow key, the focus does not go to the topmost list item. Instead, the list item correspondingly on the right gets focused.Is there a way that when I press the RIGHT arrow key, the focus goes to the topmost item on the Listview?
View 1 Replies View RelatedMy 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); }
}
I am trying to create a menu that slides up from the bottom.It starts with the menu's view just visible at the bottom of the screen, and then clicking it causes it to slide up.I tried using a TranslateAnimation, but although the pixels move, the hit areas of the menu are in the same position as before.So I think that if I can adjust the menu's margins after the animation is complete, this will accomplish what I want.However, I can't figure out how to adjust the margins.I've tried to create a LinearLayout.LayoutMargins object and then set its margins and apply it to the menu's view (which is a LinearLayout), but this doesn't work.
View 1 Replies View RelatedI would like to know if there is a way for reading the Phone Model Pro grammatically in android. I would like to get a string like HTC Dream, Milestone, Sapphire or whatever.
View 3 Replies View RelatedI am using android's default camera to click images from within my app. I want to stop the click sound that it does on clicking an image. Is there a way to stop that click sound pragmatically?
View 3 Replies View RelatedI want to do some automated testcase with Instrumentation . Suggest that my AUT has 2 Activity. After clicking the button in ther first Activity, the second one will be shown with new content base on what we enter in the first Activity.) Instrumentation provides us the function called startActivitySync() and return the Activity object for processing. My question is how we can get the pointer of the second Activity after the it is shown by clicking the button on the first activity.?
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