android-anyshape

With the solution, pictures can be displayed in any shape on Android platform.

##Effect## The left is the UI using normal ImageViews, and the right is UI using the AnyshapeImageViews

All we need to make are 3 mask PNGs like below (the background must be transparent):

##Usage## You can use the AnyshapeImageView like below in your layout file:

<cn.lankton.anyshape.AnyshapeImageView
    android:layout_width="150dp"
    android:layout_height="150dp"
    android:layout_marginTop="20dp"
    android:src="@drawable/kumamon"
    app:anyshapeMask="@drawable/singlestar"/>

You can use the attribue "anyshapeMask" to set the mask. AnyshapeImageView can get the path from the mask, by detecting the alpha value of every pixel.

if you want to create a view with pure color , you can use the code like this:

<cn.lankton.anyshape.AnyshapeImageView
    android:layout_width="210dp"
    android:layout_height="140dp"
    android:layout_marginTop="20dp"
    app:anyshapeBackColor="@android:color/holo_red_light"
    app:anyshapeMask="@drawable/rings"/>

As we know, it will cost time to get the path from a bitmap. So, there is a solution to resolve this problem.

There is a mapping cache, so that we can figure out and save paths we need before we use. We can do this job in the onCreate method of Application, or somewhere else before you use the AnyshapeImageView, like this:

List<Integer> ids = new ArrayList<>();  
ids.add(R.drawable.singlestar);  
ids.add(R.drawable.rings);
ids.add(R.drawable.text);
PathManager.getInstance().createPaths(this, ids);

##summary## The code is not hard for anybody to understand. Just hope that it can provide some help or inspiration for you.