工具介绍
具有缩放和平移功能的 Android ImageView 小组件
ImageViewTouch for Android
===
[ ](https://bintray.com/bintray/jcenter/it.sephiroth.android.library.imagezoom%3Aimagezoom/_latestVersion)
ImageViewTouch is an android `ImageView` widget with zoom and pan capabilities.
This is an implementation of the ImageView widget used in the Gallery app of the Android opensource project.
Checkout the repository and run the **ImageViewTouchTest** project to see how it works.
Beside the superclass **setImageBitmap** method it offers the following methods:
* `setImageBitmap( final Bitmap bitmap, Matrix matrix );`
* `setImageBitmap( final Bitmap bitmap, Matrix matrix, float minZoom, float maxZoom );`
If you want to load a new Bitmap with a particular zoom/pan state (let's say the same from another ImageView ), you can call:
Matrix matrix = mImageView1.getDisplayMatrix();
mImageView2.setImageBitmap( bitmap, matrix );
## Tweaks
The initial display state can be set, using `public void setDisplayType( DisplayType type )`, as:
* `DisplayType.FIT_TO_SCREEN`: The image loaded will always fit the current view's bounds.
* `DisplayType.NONE`: The image will be presented with its current dimensions if smaller than the image bounds, otherwise it will be scaled to fit its contents inside the screen.
* `DisplayType.FIT_HEIGHT`: The image loaded will always fit the height of the current view.
* `DisplayType.FIT_WIDTH`: The image loaded will always fit the width of the current view.
The default display state is `DisplayState.NONE'.
##Usage (Maven)
it.sephiroth.android.library.imagezoom
imagezoom
2.3.0
##Usage (Gradle)
dependencies {
compile 'it.sephiroth.android.library.imagezoom:imagezoom:+'
}
##LICENSE
This software is provided under the MIT license:
http://opensource.org/licenses/mit-license.php
##Author
[Alessandro Crugnola](http://blog.sephiroth.it)