ToggleDrawable

ToggleDrawable可用于使用簡約，干凈的API來創建一個繪制動畫的過渡效果。實現依賴于貝塞爾曲線，而不是SVG圖形，并低于19 API兼容。.

DEMO APK

How?

The library provides a few implementations like SearchArrowDrawable, SearchCrossDrawable or DrawerArrowDrawable:

ToggleDrawable drawable = new SearchArrowDrawable(context);
mImageView.setImageDrawable(drawable);
drawable.setProgress(...); // animate

You can easily create your own transitions by passing several Bezier curves to ToggleDrawable:

ToggleDrawable drawable = new ToggleDrawable(context);
drawable.add(<start>, <end>);
drawable.add(<start>, <end>);

Or by simpy subclassing ToggleDrawable instead:

public class MyCustomToggleDrawable extends ToggleDrawable {

        public MyCustomToggleDrawable(Context context) {
            super(context, 0, R.style.CustomToggleDrawableStyle);
            float radius = Math.round(getIntrinsicWidth()*0.5f);

            // From circle to square
            add(Bezier.quadrant(radius, 0), Bezier.line(radius, radius, radius, -radius));
            add(Bezier.quadrant(radius, 90), Bezier.line(-radius, radius, radius, radius));
            add(Bezier.quadrant(radius, 180), Bezier.line(-radius, radius, -radius, -radius));
            add(Bezier.quadrant(radius, 270), Bezier.line(-radius, -radius, radius, -radius));
        }
    }

Look at the sample.

Install

This repositery can be found on JitPack:

https://jitpack.io/#renaudcerrato/ToggleDrawable

Add it in your root build.gradle at the end of repositories:

allprojects {
        repositories {
            ...
            maven { url "https://jitpack.io" }
        }
    }

Add the dependency:

dependencies {
            compile 'com.github.renaudcerrato:ToggleDrawable:1.0.1'
    }

項目地址： https://github.com/renaudcerrato/ToggleDrawable