Android :: How To Rotate View?

Apr 7, 2009

I need to rotate my view, say a button.I want the button to be 45 degrees rotated, and I want the button to also be functional.I want the touch area to remain only around the button.How can I rotate?

Android :: How To Rotate View?


Android :: How To Rotate My View?

Feb 17, 2009

I want to rotate my view in specified degree, for example 30 degrees, 45 degrees.There is no rotate method in view class, I was trying to rotate its inside canvas, but the view doesn't rotate accordingly.

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Android :: Rotate View Permanently

Jul 27, 2009

It's actually really easy, and you don't need to use animations. I did something like this recently by using a wrapper layout that adjusts the Canvas and any MotionEvents. (You could also use this approach rotate the entire layout to any arbitrary angle.) I think romainguy told me to use Canvas.concat(mForward) instead of setMatrix(), but I haven't updated the code in awhile...................

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Android :: Rotate Bitmap With Canvas.rotate

Sep 24, 2010

As we know, we can rotate a bitmap through 2 ways. The 1st way is: Matrix mt = new Matrix(); mt. postRotate (degree);Bitmap bitmap = CreateBitmap(src, 0, 0, w, h, mt, true); canvs.drawBitmap(bitmap, 0, 0, paint); In this way, we always need create new bitmap for every rotation, it is not good way for high performance game or app.The 2nd way is: canvas.save(); canvas.rotate(degree); canvas.drawBitmap(bitmap, 0, 0, paint); canvas.restore();In this way, we avoid creating new bitmap frequently, but the rotation bitmap is distortion, the bitmap quality is worse than first way.So, Is there 3rd way to rotate bitmap with high performance and good quality? Your any comments are really appreciated!

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Nexus :: Rotate 1 Way / Landscape Works / Rotate Other Way / It Doesn't

Jul 1, 2010

I just bought the Nexus One unlocked for AT&T and really like it. 1 wierd thing is that when I rotate the phone counter clockwise, the screen goes to landscape just fine; but when I rotate it clockwise it does not go to landscape "the other way". And, if I'm holding the phone 'normally' and rotate it 180 degrees ('upside down') it doesn't follow.My youngest daughter delights in telling me that her iPhone does this with no problem. What's up with that?

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HTC Magic :: Rotate Home Screen Rotate Right?

Oct 2, 2009

I have a HTC Magic (Rogers Canada).And, I see how the Dream (G1) rotates the home screen. can the Magic do that as well? Also, anybody know if it's possible to rotate the screen to the right and not just to the left? Shouldn't the acceleromater detect all the different rotated modes (even upside down?). that'd be cool

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Android :: Populate View Flipper Child View With List View?

Aug 2, 2010

I am trying to set up a ViewFlipper that changes a SlidingDrawers content each time a button is pressed. So far every view I set up worked fine, but now I am trying to create a ListView (including single_choice_mode) within a child view of the ViewFlipper, but my attempt only let to a NullPointerException. As I only discovered ViewFlipper today, I am not yet familiar with it and may not have understood it completely. if someone could give me a hand and help me find out what I have done wrong, that would be great. Here is what I have done:

The code for the onClick event of the ImageButtons:
public void onClick(View v){
if (v == btnExposure){
mFlipper.setDisplayedChild(0); }
else if (v == btnProperties){
mFlipper.setDisplayedChild(1);}
else if (v == btnSpecialEffects){
mFlipper.setDisplayedChild(2);.............

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Android :: Rotate Floating AVD

Oct 13, 2010

When the AVD screen is in an Eclipse frame there is a button on the frame to rotate orientation. How do I cause the same action when the AVD screen is floating outside Eclipse?

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Android :: Rotate Progress Bar

Feb 15, 2010

I am extending the normal android.widget.ProgressBar.This rotates it fine, however I am having alot of sizing issues. It seems as though I have to set the width and the height of the control to be the same thing or else I run into alot of clipping issues. Basically, I want to have a progress bar that, once rotated, is 50dip wide and fills the screen vertically. Can anyone think of a way to do this? Also, it doesn't seem to be actually drawing the progress properly, but I will revisit that once I get the clipping sorted out.

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Android :: Disable Auto Rotate?

Jan 29, 2009

I'm fairly new to android development - I'm having trouble finding documentation on how to disable the accelerometer/auto-rotate feature for an app (i.e. when you turn the phone, everything 'corrects' changing the layout). Is it possible to disable in the emulator?

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Android :: Rotate Activity Screen

Nov 3, 2009

what i wont for example my g1 is Orentation enable and when my app start with screen rotate 90 then should be no rotating you know help me exam code pls.

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Android :: In-App Screen Rotate Toggle?

Nov 15, 2010

does anyone know of an app that will turn the autorotate on / off from within an app on long search key press (or another key press)?I have searched the market / google and can't find anything..

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Android :: Looking For An App To Rotate Screen 180 Degrees

Jun 28, 2010

Are there any 3rd party apps out there that rotate the screen 180 degrees? I can't seem to find any.Most times, I find it easier to use my Cliq if it is upside down (such as listening to music and charging.)

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Android :: Code When Rotate The Device

Feb 2, 2010

I am getting error when I rotate the device (it was HTC with Verizon):

The application My App (process com.mycompany.android) has
stopped unexpectadly. Please try again.

So, I think I need to code for this issue. In order words, when rotate the device from landscape to portable or from portable to landscape, application needs to catch this event.

Is it right ?

How to make it ? What is wrong here ?

Is it possible to test on the emulator ?

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Android :: Rotate GalleryView Vertically

Dec 7, 2009

Is there any way to rotate gallery view vertically instead of horizontal.

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Android :: How To Rotate Image Using SetImageMatrix()?

Jun 27, 2009

I rotate image using setImageMatrix() function. I first use getImageMatrix() function to get matrix then i use matrix.postRotate (90). Rotation works fine. But it rotates around top/left corner of image. i want to change that pivot point to center of the image. how can I do that?

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Android :: How To Rotate An ImageView Within A Layout?

Feb 3, 2010

I have a layout with an image on it (embedded in an ImageView). I need to rotate the image (let's say) 90 degrees CCW. I've written code to animate the image rotating. The image smoothly rotates 90 degrees, but then snaps back to its original state. This is what the Android documentation says will happen after an animation completes. Presumably, on the notification that the animation has ended, I'm supposed to transform the ImageView (or the underlying drawable), and possibly invalidate it to trigger a redraw. All well and good, except that I can't find a way to do it, and I can't find any examples of anyone else doing it. I tried using getImageMatix/setImageMatrix on mImageView, with no apparent effect. There are subclasses of Drawable that will rotate an image, but there is no setDrawable() method on ImageView, so I don't see how to use one.

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Android :: AVD Rotate Portrait / Landscape?

Oct 12, 2010

I know if you change a android phone from portrait to landscape sometimes the app relays its self out on the screen.. so how do I simulate rotating a phone with the AVD? On the Blackberry emulators there's a button in the menu to turn the phone, but I can't find it or any option on the Android ones?

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Android :: Rotate A Cube (3D Rotation)?

Jul 14, 2009

In the api demo, there is an example for how to rotate a cube, but it can only rotate about X axis or Y axis, without Z-Axis Rotation. So how to perform 3D Rotation?

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Android :: Animated-rotate Available For Developers?

Sep 21, 2010

In android-sdk-windowsplatformsandroid-8data esdrawable progress_large.xml, the following code is used:

CODE:.........................

If I try to copy this code in my own projects (so I can change the drawable), I get a compile error for framesCount and frameDuration.

Is <animated-rotate> something that can be used? And if so, how?

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Android :: Rotate A Drawable Programmatically?

Sep 28, 2009

In my application I want to be able to rotate a view programmatically rather than via XML. I can easily create a <rotate/> drawable that references my Drawable, but I can not figure out how to do the same thing in Java. The problem is that many drawables in my scene can be displayed either vertically or horizontally and I do not want to have to create a separate rotate drawable for every drawable in my scene.

One thought I had was to instantiate a RotateDrawable in Java and then use that as the background for my view, but it does not appear that you can set the rotation of a RotateDrawable instantiated this way (you have to feed it XML to get it to be at all useful from what I can tell).

Another thought I had was to rotate the canvas, but I would like to be able to use the drawables as view backgrounds and I do not see a way to rotate the canvas before the background of a view is drawn and then revert it afterwards.

I also looked into creating some generic rotate drawable and then perhaps changing the drawable that it applies to, but that lead no where.

So, does anyone have any ideas about how I can rotate a drawable in code and then use that rotated drawable as a background?

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Android :: How To Rotate An Image In Different Angles

Jan 1, 2010

I have a png-picture in ImageView rotatedimage = new ImageView ()

Is there a better way to rotate it in changing directions than the following way? There I have to create a new picture for every new rotating angle and add it to the layout...

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Android :: Way To Rotate Screen180 Degress

Sep 19, 2010

I have a need to rotate the views in my activities by 180 degrees. Any good suggestions on how to do this? Taking into account touch inputs still working. My activity is made up of several views in a linearlayout and also makes use of toasts.

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Android :: Rotate Controls In Java?

May 19, 2010

How to rotate same control in java? For example I want to rotate radiobutton for 90 or 180 degrees

How to do this on on JAVA SDK for android developing?

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Android : How To Rotate A Bmp / Display It Right-side-up?

Nov 17, 2010

I have an app that snaps a picture and displays the picture on an Imageview. The problem is, I can only snap a pic in landscape mode in order for the bmp to be displayed right side up - Is there a way I can rotate it to right side up if the pic is taken in portrait mode.

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Android : Rotate Bitmap In Opengl?

Oct 10, 2010

I am trying to rotate a bitmap in OpenGL. I have searched around and come up with this. code...

Drawing the bitmaps indicated with the "ids" works fine but no rotation happens. I am no expert at openGL. Is is possible I need to set some sort of mode prior to the rotation?

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Android :: Auto Rotate Screen Feature

Sep 19, 2010

Sometimes the screen auto-rotates when I don't want it to if I angle the phone slightly. I am constantly toggling it on and off. To do so of course, I have to go into settings, then display. Does anyone know of an app that I can add the toggle switch as a shortcut on my desktop? It is kind of a pain to go through the settings each and every time. I would much rather just hit it easily on my homescreen.

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Android :: Auto Rotate In Google Maps

Oct 2, 2009

Not sure if this is the right section to ask but,is there a way to turn on auto rotate in google maps? As an example, if i lay down the phone and point it north, the map should point nort. But if i would to rotate the phone, the map should be facing the same direction.

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Android :: Rotate An Image On The Entire Screen

Jul 28, 2010

I can't seem to rotate properly an image on the entire screen. The problem is that when the image rotates, you can see the background in some areas. I want the image to fill the screen also when it rotates. Here is the layout.I start the animation in onResume. As I said, the image rotates but there are background areas when it does rotate. I've tried using images much bigger than the screen but still it doesn't do what I want. I don't care that outer regions of the image are not visible. I just want the rotation to fill the screen. I guess ImageView sets its width and height initially and then, when it rotates, it uses those dimensions. Is there a better way to do this?

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Android :: App To Rotate Notification Ringtones With Every Message

May 8, 2010

Do you know of an app that would do this? For example, when I'm texting a lot, the same ringtone over and over gets a little monotonous. I'm using the Rite of Spring, so if I could have a set of like 10 moments from the piece that it rotated through, that would be great as it would provide some variety but I could still easily know that they were texts since the tones came from the same piece.

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