I've an ImageView in a LinearLayout, how can I detect when user drag his finger from any place in the screen to inside of ImageView?
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Does anyone how I go about detecting when a user presses on a bitmap which is inside a canvas?
View 2 Replies View RelatedI have a motion listener to detect finger down, finger drag, and finger up. I start my action at finger down and finish my action at finger up. When the action is finished, I store it in a stack for allowing undo. My problem is that if I don't get a finger up event, I can't finish my action to add it to the stack for undo.
How can I detect that the user's finger has left the screen?
I tried using the emulator to see if getEdgeFlags() ever returned anything useful, and the result was always 0.
Basically, if a finger leaves the screen, then nothing is touching the screen anymore and I would like to detect that as a finger up event. How can I do this?
How can i make my page slide as the user slides finger on the screen in android? Any example code? I just require the same feel as it is on my android g-phone's home screen.The screen moves as the finger moves(also includes the elastic effect).
View 3 Replies View RelatedI would like to get access to the area covered by a finger for each touch event on an Android.Every touch event will result in a coordinate pair X and Y independent of how big the finger and consequently the touch area is that triggered the event. I was wondering if there is a way to get the area data which triggered the touch event e.g. size or coordinates NOT
View 2 Replies View RelatedIn the Android API examples there is a Snake game. This game uses a class called SnakeView, which inherits from TileView.
I am doing something very similar to this. I am inheriting from TileView to create a class (SkyView), which will become a square board for a board game (similar to the board for Checkers).
However, I would like for my game board to be 400x400 pixels in size, which will be bigger than the screens of some Android devices (such as the G1). And I would like for the user to be able to freely scroll and drag the board around with their finger (both horizontal and vertical scrolling/dragging).
Can someone please point me in the correct direction for implementing this? The board must be no smaller than 400x400px in size. And however much of the board that can be displayed at once on the screen, should be displayed at once.
Should I wrap my SkyView widget in an AbsoluteLayout and use Scrollbars? If so, what Scrollbar properties to I need to use? I played around with Scrollbars in both directions but couldn't get it to work. Is there another view layout I should put it inside? Code examples would be nice! Thanks for the help. I am at a loss with this one.
I am programming an android application and my "testing" device is a Motorola Milestone (Droid). I have done a grid that scroll like the iPhone home menu ( with "points").
I got two problems:
The first one : the drag only works on the Android Device Emulator and don't on the Droid! (Maybe the multi-touch screen is a problem?) The drag is too responsible, and flip views sometimes one by one (this is ok) and sometimes 2 by 2 or 3 by 3! That is clearly problematic!
Here is the code of my OnTouch method: Code...
Update : It doesn't work anymore on the Google Nexus One!
Is there a way, some API one can call to detect if the user has set a screen unlock pattern or not?
View 2 Replies View RelatedI have a table-top style game board consisting of 10x10 squares. Each square is a PNG image. On top of these squares I want to place tiles which can be drag and dropped on top of the squares.
What would be my best approach concerning Views?
Is it possible to have two layers where layer one is a grid of ImageView's which represents the board. Would it then be possible to let the tile be an ImageView also which could be "stacked" on top of the ImageView's which represents the board?
I've got a view where I override onTouchEvent to detect touching the view with a finger and also to detect lifting the finger from the view. I'm getting the ACTION_DOWN event but not the ACTION_UP event. In fact, onTouchEvent isn't getting called when I life my finger. Could it be that the finger-down and then finger-up is considered a click event and so onTouchEvent is not called? If so, what use is ACTION_UP?
View 15 Replies View RelatedI want to display a play button (ImageView) ontop of a thumbnail (another ImageView). How can I place UI controls ontop of each other?
Programatically or in XML?
I have the following layout in Android. I'm trying to make it so the seekbar is displayed ontop of the image (I have some code that makes it visible and invisible(Or rather GONE).
I was wondering if anyone could tell me how to position it so that the seekbar goes over the imageview, therefore allowing the imageview to take up the entire screen. code...
I'm doing the HelloViews Gridview tutorial and I ran into this problem.
http://grab.by/9Vn
I have a padding that I can't find where is it coming from.
XML is the following: <?xml version="1.0" encoding="utf-8"?> <GridView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/gridview" android:layout_width="fill_parent" android:layout_height="fill_parent" android:numColumns="2" android:verticalSpacing="0px" android:horizontalSpacing="0px" android:stretchMode="columnWidth"android:gravity="center" android:layout_margin="0dp" />
and in my adapter:
I can't seem to find the place where I can get rid of that padding (or margin). Pictures are 160px x 160px.
I have a Bitmap image (bm) and a an ImageView (iv) of 50 by 50 when i do iv.setImageBitmap(bm) ... only a portion of the entire image is seen ..How can i see the whole image in the 50 dip by 50 dip ImageView...
View 9 Replies View RelatedI want to add a view inside a FrameLayout programmatically and to place it in a specific point within the layout with a specific width and height. Does FrameLayout support this? If not, should I use an intermediate ViewGroup to achieve this? My initial idea was to add an AbsoluteLayout to the FrameLayout and place the view inside the AbsoluteLayout. Unfortunately I just found out that AbsoluteLayout is deprecated.
View 2 Replies View RelatedIs it possible to place an imageView in a class that extends View in android?
If possible please give me a sample code.
How can you detect that a user swiped his finger in some direction over a web page with JavaScript?
I was wondering if there was one solution that would work for websites on both the iPhone and an Android phone.
I have an activity A which uses SharedPreferences to share data with a service S, which is called from within A.Now when I call the stopService() method from A, the onDestroy() method in S is not called immediately.I thought that all the activities and services under a single apk run in just one process. Why then does the jump to onDestroy() not take place immediately instead I can see the output from onDestroy() after the further code in the activity A is executed.
View 5 Replies View RelatedI am trying to add an animated spinner inside a EditText view to the right. And programmatically show/hide it.
I have created the animated spinner by introducing a linear interpolation rotation. code...
I have a listview with radio button. when i click any option and scroll that list view the previous select will cleared.How to do this. The actual problem is when scroll the view on every scorll the view is refreshed, that's why every time the view is refreshed. How to do this I can't get any solution.
View 1 Replies View RelatedI'm building a chat room application where new events are being polled for every X seconds. Every time that happens, this code updates the RoomAdapter (a custom subclass of ArrayAdapter) with the new data and scrolls it to the bottom:
RoomAdapter adapter = (RoomAdapter) getListAdapter();
for (int i=0; i<newEvents.size(); i++)
adapter.add(newEvents.get(i));
getListView().setSelection(events.size()-1);
This is fine, except that if the user is scrolling up to glance at the room's history, it's going to jump her down to the bottom when the poll happens. What I'd like to do is have it so that if the user is already at the bottom of the list, it stays there after a poll for new events. If the user's intentionally scrolled upwards, I'd like the user not to be disturbed.
How do I detect when I'm already scrolled to the bottom of a ListView?
Note: I can't do getListView().getSelectedItemPosition(), because as the docs note, calling setSelection when in touch mode does not actually select the item, just scrolls to it.
I am developing one application with map view. I need display the weather depends on user place how can I get the weather report depending on the user lat and lon.
View 1 Replies View RelatedI want a countdowntimer to halt on a menu and also when the user goes from that menu to another activity. When the user comes back from that activity or when the menu is closed, the timer should still halt. However when the user went to the home screen and clicks on the icon again, I want the timer to restart. So my question is, is there a way to detect if the user has just opened your application, or if the user comes back from another activity or menu?
View 4 Replies View Relatedhow can I place the cube in a specific place on the screen?
View 8 Replies View RelatedSay that TaskA is currently in the foreground and my ActivityA is somewhere within its stack. Is there a way for ActivityA to get notified or detect when the user switches from TaskA to TaskB? As a use scenario, when the user launches my app, my ActivityA will always be the root Activity of the newly created Task. ActivityA will make use of Activities from other Apps, which will be pushed on the same Task. I would like to get notified when the user has switched to another application. In this case, onStop() in MyActivityA does not suffice as that will also get invoked if the user navigates to another screen within my app.
View 5 Replies View RelatedI want this same behavior even when the app is in the foreground but user doesn't interact with the app for a long-time say 6-7 mins... Assume the screen is ON all the time... I want to detect kind of USER INACTIVITY (No interaction with app even though the app is in the foreground) and kick start my count down timer.
View 4 Replies View RelatedI would like to know if the user is using the application for the first time. I am using SharedPreferences, but I am not sure if I have the right logic. How can I set my isFirstLaunched boolean to true when the user first launches, and then immediately set to false after work has been done?
protected void onStart() {
super.onStart();
if(isFirstLaunch()){
populateDefaultQuotes();
//Save the preferences, isFirstLaunch will now be false
SharedPreferences settings = getSharedPreferences(Constants.PREFS_NAME, 0);....................
I would like to know if android has some kind of 'idle time broadcast message'. So for example if the user is currently using one activity of my application but haven't touched the screen or used any keyboard (and doesn't have the autolock at phone level or any screensaver) for a while, I would like to be informed (let's say after 60 seconds). I would like to avoid doing it manually (by tracking each user click, touch, activity changes...)
View 2 Replies View RelatedI'm writing an application and I have a feedback screen. When the user presses submit button, it takes him to the default email client and prefills the email address, subject etc. ("mailto:") When the user presses Send, my application appears and I thank the user for giving feedback. However, how can I tell if the user has pressed the Discard button and did not send the email?
View 1 Replies View RelatedI want to detect when a user taps anywhere in a view in my Android application. My code looks like this:
linearLayout = (LinearLayout) findViewById(R.id.linearLayout); // main layout
// ...
linearLayout.setOnTouchListener(this);
// ...
public boolean onTouch(View v, MotionEvent event) {
Toast.makeText(this, "Touch!", 1000);
if (event.getAction() == MotionEvent.ACTION_DOWN) {
Toast.makeText(this, "Down!", 1000);
return true;
}
return false;
}
but when I click on the view, I don't get Toast! Do touch events work in the emulator -- or have I got something wrong in my code?