Android :: How To Fix Hit Area After Scaling?
May 11, 2010
I am scaling the canvas of a linear layout on draw, but this throws off all the hit areas of my views inside of this layout. They respond as if there was no scaling taking place. What do I have to do to get themselves to re-register their hit areas?
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Jun 19, 2010
right away I am doing an app for an festival, and I want to make a area map / area plan. I have got a picture (bigger then the screen) and I want to be able to move it up/down and to the left/right. Further I want to place smaler icons (like the stage, you should be able to click on it and see who is playing) or doing the same in de big picture and get the touch with a x/y request.but I haven't got an idea how I could realise this,
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Nov 23, 2010
The display area of my SGS has been reduced there is now a black line (approximatively 1 millimeter thick) around the display now anything that should be displayed has been centered (a kind of)i have noticed that after press-holding the HOME BUTTON (to get to the task manager).even when the phone that black border is still there and it look like the screen has been pushed down the display is not now at the same level as the top-cover (or screen cover).I have used the factory reset but nothing has changed.My phone look horrible now.
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Dec 13, 2009
I have some transparent graphics in my game. Up through 2.0.0 they have looked fined. Since Android 2.0.1 though, some parts of the fully transparent regions of the graphics are instead slightly opaque (e.g. a circular gradient that goes to 100% transparency will have a faint halo around it).
I have tried putting my graphics in ../raw/ but that did not help (as described at http://developer.android.com/guide/topics/graphics/2d-graphics.html#d...)
I have also tried exporting the Adobe Illustrator graphics at 16-bit pngs (instead of 8bit), but that did not help either.
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Feb 18, 2010
I have a texture with 8 equally sized stripes that I am using as a wall with OpenGL. On my Nexus One it scales it properly However, in emulators and on a G1 (and probably on other hardware), it does not scale properly, as the stripes remain the same width, while the height scales as it should. Is there an option that I need to set that is set to default on my nexus one but not on other platforms?
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Jan 5, 2010
I have some 9-patch images on my app, and they work great on the medium density. When I load the app on a High density emulator/device, these images look grainy. It happens only to 9-patch images. The others look great after the pre- scaling. Is there a way to make them look good after the scaling, like the non-9-patch images?
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Oct 15, 2010
In a start activity of our android application we're using a linearlayout with an background image for whole space. The image size is 320x480 - the same as device resolution, we're using for testing. The problem is, the image will be scaled und looks not so nice. I tried to use imageview instead, but I've got black borders.
Some ideas, how to avoid scaling or how to get the proper size for background image?!
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Jun 22, 2010
Most of the time, Android scaling is nice but I have a case where I don't want any scaling and I can't find how to do this.
I made a simple layout to test code...
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Feb 19, 2010
Say I have a TextView of a particular size (doesn't really matter what... fill_parent, 20dip, whatever). Is it possible to tell the text to shrink/grow in size to fit the available space without doing a lot of math?
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Sep 17, 2009
I can't wait to try out the new 1.6 goodies, but first I'm retargeting my existing applications, and I decided to start with Daisy Garden. Changing to android:targetSdkVersion="4" caused the application to segfault on startup and discovered that the BitmapFactory.decodeResource method now performs scaling based on screen density. In this case the behaviour is unwanted - I'm loading a set of masks that are scaled later during composition. So I've quickly inserted the following method, which seems to perfectly mimic the previous behaviour:
private Bitmap loadBitmap(int resId) { BitmapFactory.Options options = new BitmapFactory.Options(); options.inTargetDensity = 1; options.inDensity = 1; return BitmapFactory.decodeResource(context.getResources(), resId, options);
}
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Jun 11, 2010
I have a WebView which I'm trying to have scale to a certain percent on loading the page. The iPhone version of this software uses the HTML meta-tag:<meta name="viewport" content="width=320, initial-scale=0.95, maximum-scale=2.0, user-scalable=1">..Since Android's WebView doesn't seem to respect that tag I hard-coded the percent using setInitialScale(). However, the WebView is just flat-out ignoring this method call. No matter what number I put in there it shows at 100%.
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Nov 30, 2009
I'm loading a URL into a WebView and I'm having difficulty setting the "scale" of the web-page. Specifically, the web-page is too big (800x600) for the screen, so my thought is to use "setInitialScale(50)" to reduce the size. Here is some sample code that doesn't work (i.e. the web-page doesn't scale to 50%)
WebView wv = (WebView)findViewById(R.id.webview);
wv.loadUrl("http://www.example.com/android/symptom");
wv.setInitialScale(50);
I also tried switching the order of the function calls but I get the same resultŠi.e.,
WebView wv = (WebView)findViewById(R.id.webview); wv.setInitialScale(50); wv.loadUrl("http://www.example.com/android/symptom");
As an alternative, I have tried to use the "zoomOut()" function like this:
WebView wv = (WebView)findViewById(R.id.webview);
wv.loadUrl("http://www.example.com/android/symptom"); wv.zoomOut();
This approach works for a split second, and then the image reverts to its original size.
Here is my content view:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/ android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent"> <WebView android:id="@+id/webview"
android:layout_width="fill_parent" android:layout_height="fill_parent" /> </LinearLayout>
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Jan 14, 2010
Using a VideoView is it possible to set a scale factor for Android? By Default the video view resizes itself to fit the encoded resolution of the Video. Can I force Android to render a video into a smaller or larger rect?
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Nov 17, 2010
I need to scale down images coming from a Network stream without losing quality. I am aware of this solution Android: Strange out of memory issue but it is too coarse - inSampleSize is an integer and does not allow finer control over the resulting dimensions. That is, I need to scale images to specific h/w dimensions (and keeping aspect ratio). I dont mind having a DIY bicubic/lancoz algorithm in my code but I cant find any examples that would work on Android as they all rely on Java2D (JavaSE). EDIT: Ive attached a quick source. The original is 720x402 HD screen capture. Please ignore the top 2 thumbnails. The top large image is resized automatically by android (as part of layout) to about 130x72. It is nice and crisp. The bottom image is resized with API and has severe artifacting. Code...
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Jun 26, 2010
We're looking for a method to properly scale our textures and world. The current method we're using is having an arbitrary world unit which calculates the screen resolution and receives the size of a pixel on all resolutions. However is there an easier way of implementing a scaling method for game development? We have looked through dip and other android native elements but these don't work as well for a larger scale on game development.
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Jan 6, 2010
I developed a game with the g1 in my mind. Now I want to support large screen sizes but I don't want to add in the apk different images for different screen sizes because now the apk is 3mb and when installed thought market it became 6mb (due to protection on). If I have to double the images to support new screens, the apk would be too heavy (about 13mb, I think) so I'm wondering to know if scaling images at runtime by myself (without compatibility mode) maybe the best way for supporting larger screens. Compatibility mode does a great work in scaling images but it slows down drastically the frame rate (I think because the scale operation is made every time an image is used/moved and not only once on the load of the image itself).
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Sep 20, 2010
I am using android.hardware.Camera to get a preview and display it on a custom SurfaceView that implements SurfaceHolder.Callback.
I am trying to zoom in to the camera preview surface by a specified scale (not using the camera's digital zoom) but I can't seem to find a correct way to do it. I also need to be able to zoom out and scale down the preview.
I was hoping to be able to do this using a ScaleAnimation but it doesn't seem to work on SurfaceView, nor the FrameLayout containing the SurfaceView.
I also tried setting the size of the SurfaceView using setLayoutParams but that doesn't seem to work too well on various hardware and it would be tough to animate smoothly.
How to achieve this effect? Right now I am starting to think I might have to implement this using GLSurfaceView but I'm very unsure.
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Oct 4, 2010
I have a button which I want to occupy 75% of the screen:
On a 480x800 resolution screen this would be 360 pixels wide.
On a 280x320 resolution screen this would be 210 pixels wide.
How do I go about specifying this in my layout XML file?
I understand there is a DIP unit of measurement, but does that also work to scale screen images for resolutions? What DIP measurement would I use for this, and do the images need to be saved at 160dpi.
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Aug 4, 2010
How does Android handle scaling of a video being played within a VideoView?
So for example if I have a video that is say 480 X 270 (width and height), aspect ratio 16:9. And, say the VideoView is added to a LinearLayout with LayoutParams of (480, 270). What will be width and height of the rendered video in portrait orientation in a device that is 320 X 480? In landscape? In another device that is 320 X 550?
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May 9, 2010
I'm designing an HTML page for display in Android browsers. Consider this simple example page:
<html>
<head><title>Simple!</title>
</head>
<body>
<p><img src="http://sstatic.net/so/img/logo.png"></p>
</body>
</html>
It looks just fine on the standard HVGA phones (320x480), but on HDPI WVGA sizes (480x800 or 480x854) the built-in browser automatically scales the image up; it looks ugly.
I've read that I should be able to use this tag to force the browser to stop scaling my page:
<meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; minimum-scale=1.0; user-scalable=0;" />
... but all that does is disable user scaling (the zoom buttons disappear); it doesn't actually prevent the browser from scaling my image. Adjusting the scale factors (setting them all to 2.0 or 0.5) has no effect at all.
How can I force the WVGA browser to stop scaling my images?
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Aug 24, 2012
i am displaying the HTML pages in web view and i gives two button for zoom-in and zoom-out.On clicking of zoom-in i am increasing the scale to make it similar like zoom but after increase scaling the content is going out from the width of screen in both side horizontally and vertically but i want that the content will always be within the boundary of screen,where can i change in android code ,XML or css or tell me how can i see the complete content of page after scaling because the contents are not completely visible.
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Jun 6, 2012
I have created an HTML5 'app' with a width and height 480 x 800 to be used as an android app.
Plan is that this can be scaled down/up for other Android devices to fit screen.
The app runs fine, but it is not being scaled to my device screen size. I have to scroll up/down and left/right on the every screen.
I have tried nearly every variation of the meta viewport tag with no succes (in the index.html file).
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Aug 21, 2010
I'm playing with a Droid Incredible my wife got from her company because I'm thinking of buying one.I do photography and I have a website.The images aren't huge maybe 600 x 800 pixels but that's bigger than the screen resolution of the Incredible so I can't view them on the built-in browser without panning around.A normal PC browser is smart enough to shrink the image to fit the browser window.Also, my wife's iPhone handles this with no problem. How do I get the browser on the Droid Incredible to do that?
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Aug 17, 2009
I want use android as my os of a pda,but adnroid is a os designed for mobile phone, so i want to customize the ui and delete some models that i did not need in andriod. it seems that i should do a lot of work. is it possible to do that? or has anybody else done that kind of work before?
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Oct 29, 2009
Is there an app that displays the location (state and/or city area) of an area code of a call as it is received? i had a samsung blade (a900 or something) that would display the state of the area code right below the number as the call showed up, and that phone is like 4-5 years old so i know this can't be too hard to do...
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May 7, 2010
I wanna know which Weather App is the best. What I'm looking for is:
-One that shows me a radar of the area.
-One that has a widget.
-One that has hour to hour weather?
-Doesn't drain TOO much battery.
I've been comparing Weather Channel and Weatherbug, and it seems like both have their pro's and con's. Can anybody give their opinions on which is the best of these two (or possibly another I'm not finding) ?
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Aug 23, 2009
How can i get area name by passing latitdue and longitude in android? Which api i will have to use.
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Oct 20, 2010
I'm trying to find out if the user is still within range of his own area code. Detecting roaming doesn't solve the problem since the user may still be in the same network with a different area code. I thought about getting the user's coarse location to find the city he's is in but this approach needs Internet access and might not be fast enough (this is done as the user is making a call and needs to finish before the call is made). Is there any way I can do this with just the info from the cellular network?
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Jul 29, 2010
I'm running a N1 with CM6 RC2.I'd like to do something like this: http://st.gsmarena.com/vv/reviewsimg/samsung-i9000-galaxy-s/review/sshots1/gsmarena_014.jpg. Note the settings toggles at the top.
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May 17, 2010
Is there a way to save or cache maps and sat pics of an area that is out of network coverage while I am getting coverage so that when I get to the far away place I have map data?
Yesterday I was exploring a dirt road that I had previewed with the map application. When I got near my destination, I turned on the phone to see where I was and there was no image.
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