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POAndroid Animation with Gridviews: Scaling from a thumbnail to a full-size image
 

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  1. POAndroid Animation with Gridviews: Scaling from a thumbnail to a full-size image
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    <p>I currently have a <code>GridView</code> filled with thumbnail images. Now normally I'd load the fullsize versions of these thumbnails in a 'detail' activity via an <code>onClickListener</code>.</p> <p>However I'm trying to replicate the effect where, if I click on a thumbnail, it should scale up to show the fullsize image, and when you tap on the fullsize image it should scale back down to the thumbnail. I've tried a simple scale animation, but can't seem to get my head around animating the image from (and back to) it's initial position.</p> <p>Note: If anyone has a HTC One X, the effect I'm chasing is exactly like the Gallery app on that phone. The Jellybean powered Nexus 7 also has the same effect when you click on an image.</p> <p>My most recent attempt has been (fired onClick):</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;scale xmlns:android="http://schemas.android.com/apk/res/android" android:interpolator="@android:anim/linear_interpolator" android:fromXScale="1.0" android:toXScale="1.0" android:fromYScale="0.0" android:toYScale="1.0" android:pivotY="50%" android:fillAfter="true" android:fillEnabled="true" android:startOffset="200" android:duration="200" /&gt; </code></pre> <p><strong>Update</strong>: Tried looking at the source for Google's Gallery3D app (http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android-apps/4.1.1_r1/com/android/gallery3d/app), which is the one the Nexus uses, but it's massively complicated.</p>
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    1. PTQuestion
    1. USMo Kargas
    1. USMo Kargas
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      1. POAndroid Animation with Gridviews: Scaling from a thumbnail to a full-size image
      1. USRicardo
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    1. COScale a View is rather easy, I guess you already know how to do it. Another thing left to do is calculate the position from which to start/end the scale, you may need `View.LayoutParams`.
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      1. POAndroid Animation with Gridviews: Scaling from a thumbnail to a full-size image
      1. USneevek
    2. COI have no idea on how to do that. Currently I can get the image I need to scale, but not how to scale from the selected image's dimensions to fit the screen size.
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      1. POAndroid Animation with Gridviews: Scaling from a thumbnail to a full-size image
      1. USMo Kargas
    3. COI have actually solved this to a degree. I'll write up my answer when I can.
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      1. POAndroid Animation with Gridviews: Scaling from a thumbnail to a full-size image
      1. USMo Kargas
 

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