Android :: Get Bitmap Of All Views In ViewFlipper?
Apr 6, 2010
I need to take the Bitmap of all the Views in ViewFlipper. But it gives me the Bitmap of only the current content on the screen. Is there any way of getting Bitmap of all the Views in the ViewFlipper.
Or is there any other way around to get the Bitmap of all the Views. I have four views and need to load them at the same time and get their Bitmap so that I can resize it and later display with Gallery.
I hope to get a quick response this time around.
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Apr 5, 2010
I am using "ViewFlipper" for my application. This ViewFlipper includes 5 layouts. I am trying make it that can be changed from current layout to any layout. In other words, it can be changed Layout#1 -> Layout#5 or Layout#4 -> Layout#1 ..etc. How to make it? I used showNext() and showPrevious(). It is not better idea for my case. Can I use ViewSwither instead of this case?
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Jul 16, 2010
I am developing a Music Player and I have a view flipper to control all the artist view, album view, so on and so forth. What I am doing now is that I have list view in each view of the view flipper. However, I do not want to put all my codes inside one activity but rather, to have different activities for each view. Is that possible to implement?
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Jul 19, 2010
I have an application using ListView inside Tabs, and I'd like to switch to a separate View(data collection widget) on clicking an item in the List.I'm adding each List's row's children to a ViewFlipper and the items are added at runtime so there is no definite number of views. As such, i would want to navigate/switch to a particular View in the ViewFlipper.Any pointers?
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Mar 9, 2010
Is there a way to switch views in a ViewFlipper just like on Home screen, where we have small dots at the bottom of the screen and on clicking on them we can switch views.
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Jan 24, 2010
I have a 3 nested ViewFlippers which seem to be working ok except that when I change the screen orientation the view flip back to the first one of my views, giving the user the impression it went back a few steps.I am a bit stumped as to what to do and was hoping someone had some experience with this.
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Jan 6, 2010
I have a simple ListView and on that ListView I have placed a number of custom defined Views. The CustomView has ImageView and two TextViews.
The CustomView also has a "stateful drawable" as background, so that the background image (a 9-patch) changes if you press the Row in the ListView. When pressing the Row, the background image changes to a Red-ish thing.
The problem is that when the background changes from the default greyish, all the Views in the CustomView (ImageView and TextViews) still have their greyish background and thus creates very ugly greay boxes on top of the now redish background.
What is the best way to solve that problem? I hoped that such things were handled automatically (as it is done in for example .NET), but I was wrong it seems.
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Jul 21, 2010
I have a very large image and I only want to display a section the size of the display (no scaling), and the section should just be the center of the image. Because the image is very large I cannot read the entire image into memory and then crop it. This is what I have so far but it will give OutOfMemory for large images. Also I don't think inSampleSize applies because I want to crop the image, not lower the resolution.
Uri data = getIntent().getData();
Input Stream is = getContentResolver().openInputStream(data);
Bitmap bitmap = BitmapFactory.decodeStream(is, null, null);
Any help would be great?
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Apr 2, 2009
I am 1) taking a picture and 2) then draw another Bitmap on top of it 3) then I store it
I am doing it as follows and it works on the emulator.
On the device I get a OutOfMemoryError: bitmap size exceeds VM budget android.graphics.Bitmap.nativeCopy(Native Method) android.graphics.Bitmap.copy(Bitmap.java:199) in the line copy the Bitmap to get a mutable Bitmap.
CODE:...........
What I am asking:
a) Is there a better way to do what I am doing? 1) take a picture 2) draw another Bitmap on top of it 3) then I store it
b) What is the best way to create a mutable Bitmap from the picture I just took with the camera?
In my app, resolution is not an issue. If it works better for small photos that would be fine.
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Nov 16, 2010
I am implementing a music player application in Android. My play list selection screen is implemented as a tab selector widget which contains a ListActivity inside each of the tabs: Artist, Albums, Songs.
I want to update the ListView in each of the ListActivity when I delete an item from any of the lists.
i.e. When I long press an item in the Artists list a context menu is drawn with "Delete Artist"
And it should delete all the songs from this artist in the Songs ListView, delete all the albums by this artist in the Albums ListView, and finally delete the entry for the artist in the Artist ListView.
Each of the ListActivity has its own fillData() method, which updates the ListView when the button in the context menu is pressed.
How can I call the fillData() method of the Albums ListActivity after I update the ListView inside of the Artists ListActivity?
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Feb 28, 2010
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:.................
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Mar 6, 2010
I have the following XML code:.................
The idea is to change the views, whenever I press one of the radio buttons. When I press a button the first time everything works out fine, but the second time I press a button, I get an IllegalStateException, and I can't quite see why I'm getting this.
Also, the Activity seems to set all my global variables to null, which is why I have to create them every time I switch from portrait to landscape or vice versa. So I would like to know if there is a way I can save my views in the Bundle, or any other way in which I can permanently save my views, so I don't have to add or create them every time, I flip the phone. And whenever I flip the phone, it seems that it rereads the main XML file, causing the RadioGroup to be set to 2D even if the 3D button is checked. This is because I've said the 2D button to be checked from when the app is first created, but I would like to also save the state of that RadioGroup.
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Jun 16, 2010
How do you align views relative to the "middle" part of another view? I think it is best explained with a pic of the UI I'm trying to create in android.
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Oct 8, 2009
I have two questions actually:
Is it better to draw an image on a bitmap or create a bitmap as resource and then draw it over a bitmap? Performance wise... which one is better?
If I want to draw something transparent over a bitmap, how would I go about doing it?
If I want to overlay one transparent bitmap over another, how would I do it?
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Mar 22, 2009
My goal is the draw a bitmap onto another bitmap but rotated 90 degress. whats the most efficient way to do that. My current method is as follows which is horribly bad because it creates a new bitmap every time.
CODE:.....................
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Jan 25, 2010
Is there any way to query a root view of an activity for all of its child views even before the root view or its children have been inflated? I guess what I'm looking for is whether a view knows ahead of time what children it will have before it gets inflated, and can I get that list in some way. Bizarre I realize, but I think it will help me with some unconventional automation testing I'm working on. I haven't found anything in the API like this.
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Mar 7, 2010
Let's say I have a LinearLayout, and I want to add a View to it, in my program from the Java code. What method is used for this? I'm not asking how it's done in XML, which I do know, but rather, how can I do something along the lines of (One View).add(Another View) Like one can do in Swing.
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Jun 22, 2010
I want to draw a shape(many circles particularly) into a Specific Bitmap. I have never used canvas / 2D graphs etc. As i see it i create a Drawable put the bitmap in it then "canvas-it" to the shapes i want etc.
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Oct 3, 2010
I have a ViewFlipper with two ImageView widgets. I have set the in and out animation as android.R.anim.slide_in_left and android.R.anim.slide_out_right
Now when the two ImageViews have two different drawables, then the animation is sleek and smooth. But when I set the both the ImageViews to the same Drawable, the screen flickers. Why is this happening and how do I prevent it?
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Jul 8, 2010
I am trying to create a widget which functions in a similar manner to the new Marketplace widget.The Marketplace widget fades between different views (each view being a sample Marketplace app with a TextView and an ImageView describing the Marketplace app).I would like to mimic this fading between different views behavior. Unfortunately, as is clearly stated in So, how can we mimic this fading behavior?
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Mar 25, 2010
I am using gesture detector to catch "flings" and using a view flipper to change the screen when this happens. Some of my child views contain list views. The the gesture detector wont recognize a swipe if you swipe on the list view. But it will recognize it if it is onTop of TextView's or ImageView's. Is there a way to implement it so that it will recognize the swipes even if they are on top of another view that has a ClickListener?
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Apr 28, 2010
I am trying to use a ViewFlipper and make it act like the home screen(The layout will move with your finger). Check out this for an example. I want to do this with a ViewFlipper that only contains two children so the opposite view should be shown on either side of the current view depending on which way the user moves their finger. This code works but only for 1 direction at a time. This is in onTouchEvent.
CODE:............................
Which ever of the bottom two lines I put last that direction will work correctly but the other will not.
Here is how I set the leftView and rightView:
CODE:............................
Is it going to be possible to set it up so that the same view is shown on both sides of the current view?
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Oct 8, 2010
I have a ViewFlipper defined that contains 3 views...
CODE:.........
I also have a custom View defined within my Activity...
CODE:........
Some how, I need these linked together so that the 'third_view' defined in the XML layout file needs to be a CompassView, or have a CompassView added to it.
What I can do is drop the 'third_view' from the layout and then add in the CompassView manually..
CODE:........
But then I lose the ability to define other view controls within the layout file.
Can I add CompassView to 'third_view' declaratively?
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Oct 14, 2010
I need to include multiple images in my Android app. It's like an image viewer/slideshow. Currently I switch between pictures from /drawable-mdpi dir simply with ImageView and adapter, using gestures to left/right. Works but nothing impresive :/
Basically I could use something like Android (2.1) gallery with some image show animation.
1st question: what's the best way to include many (50-100) fullscreen images in App?
2nd: is it possible to use ViewFlipper animations directly to images? or do i have to somehow populate Views?
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Jul 4, 2010
I would like to switch to certain views in a ViewFlipper. Currently, I have 6 children inside the ViewFlipper. And I am having some buttons for navigation. It is very much similar to "News and weather" application.
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Sep 1, 2010
I have a ViewFlipper that contains Layouts.
Is there a way I can hook up a Class to manage each layout seperately?
Kind of like setContentView(R.layout.main); but I'm not sure how to reference the 3 different layouts in code...
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Nov 17, 2010
I would like the ViewFlipper animation to look (almost) the same as the native Activity show/disappear. I currently have fly-out-to-left and fly-in-from-right animations when user clicks Next, but the animation is not smooth..........
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Apr 20, 2010
I have a layout I'm creating that uses ViewFlipper for different screens.In eclipse's layout editor it only displays the first page in the View.Is there a keyboard shortcut, or function to flip to the next screen?Currently I'm building each screen in a seperate XML file and then copying and pasting it into the main XML file.Is there a better way to work here?
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Sep 15, 2009
I am wondering how to use custom in/out animations for a ViewAnimator, such as the 3d flip animation in the ApiDemos. Details below in case you have the time to read.
The following methods:
animator.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.fade_in));
animator.setInAnimation(this, R.anim.fade_in);
Require that I use the animation as a XML resource but the documentation says the XML only takes "<alpha>, <scale>, <translate>, <rotate>, interpolator element, or <set>" as the root element. So it seems to indicate that you cannot use a custom animation as an XML resource?
I also tried:
animator.setInAnimation(new AlphaAnimation(0.0f, 1.0f));
Which doesn't seem to work (no animation happens just plain cut).
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May 23, 2010
I'm embarking on a GUI Activity composed of a viewflipper, which I would like to contain 10 linearlayout layouts. Is it advisable to put all of my layouts into the same XML resource/layout file? If not, is there a more organized approach to coding a viewflipper with many layouts? Will having everything in the same file come at a significant performance cost?
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