Library designed to display an array of arrows that can be adjusted direction and color. Can be used for a variety of uses, directions of a particular object at different times, addition to the graph, etc.

Vertical and horizontal step line indicator.

Setup

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

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

Step 2. Add the dependency:

dependencies {
    implementation 'com.github.guy-4444:Direction-Line:1.01.04'
}

Usage

• angle values - 0 -> 360

  Direction-Line Examples:

360 angle colorful direction line:

final int SIZE = 30;
ArrayList<Integer> nums = new ArrayList<>();
for (int i = 0; i < SIZE; i++) {
    nums.add((int) (i*(360 / SIZE)));
}

directionLineLayout1.setStepLines(this, DirectionLineLayout.LayoutOrientation.HORIZONTAL, 2, SIZE, R.color.skv_arrow_color, 80, R.drawable.ic_arrow);
for (int i = 0; i < directionLineLayout1.getSize(); i++) {
    directionLineLayout1.setUnitDirection(i, nums.get(i));
    int color = Color.HSVToColor(255, new float[]{(float) nums.get(i), 1.0f, 1.0f});
    directionLineLayout1.setUnitColor(i, (int) color);
}

720 angle red-blue direction line:

        final int SIZE = 60;
        ArrayList<Integer> nums = new ArrayList<>();
        for (int i = 0; i < SIZE; i++) {
            nums.add((int) (i*(720.0 / SIZE)));
        }

        directionLineLayout2.setStepLines(this, DirectionLineLayout.LayoutOrientation.HORIZONTAL, 1, 60, R.color.skv_arrow_color, 40, R.drawable.ic_arrow);
        for (int i = 0; i < directionLineLayout2.getSize(); i++) {
            double yaw = nums.get(i);
            directionLineLayout2.setUnitDirection(i, (int) yaw);
            double X = Math.abs(Math.sin(yaw/360.0*Math.PI)) * 255;
            int color = Color.rgb((int) X, 0, (int) (255-X));
            directionLineLayout2.setUnitColor(i, color);
        }

Credits

Left arrow free icon from Roundicons, flaticon.com

License

Copyright 2018 Guy Isakov

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.