Helps to calculate a point on a generic Android Wear Watchface by using nothing more than a margin from the outer boundary and an angle. Especially useful for round faces with a chin.
Inside your CanvasWatchFaceService.Engine call: We'll need this to automatically figure out the watch face format.
@Override
public void onApplyWindowInsets(WindowInsets insets) {
super.onApplyWindowInsets(insets);
WearFaceUtils.INSTANCE.init(insets);
}Then use the actual method to calculate your point(s). No need to define your watch face format. One method to rule them all :)
@Override
public void onDraw(Canvas canvas, Rect bounds) {
int outerMarginPx = 30; // your margin from the outer boundary of your (generic) watchface.
double angle = Math.PI / 2; // angle starting at 3 o Clock.
// main function. Automatically figures out if we're on a circle, circle with chin or square watch face
Point pointOnFace = WearFaceUtils.INSTANCE.pointOnFace(outerMarginPx, angle, bounds);
// use your point to draw stuff to the canvas ;)
}Using these points you can then draw elements with a consistent margin from the outer bounds including the form and a chin. Examples results:
You can also force the different formats, regardless of the actual watch you're running on:
Point pointOnCircleFace = WearFaceUtils.INSTANCE.pointOnCircleFace(outerMarginPx, angle, bounds);
Point pointOnChinFace = WearFaceUtils.INSTANCE.pointOnChinFace(outerMarginPx, angle, bounds);
Point pointOnSquareFace = WearFaceUtils.INSTANCE.pointOnRectFace(outerMarginPx, angle, bounds);Add the following to your dependencies.
compile 'com.techlung.wearfaceutils:wearfaceutils:1.0.0'Copyright 2017 Oliver Metz
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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