Android Open Source - nxt-remote-controller Button Icon

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License

The source code is released under:

MIT License

Java Source Code

package com.gc.materialdesign.views;
/*from   w w w  .  j  a  v  a2  s  . c om*/
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.drawable.ColorDrawable;
import android.util.AttributeSet;
import android.view.MotionEvent;

public class ButtonIcon extends ButtonFloat {

  public ButtonIcon(Context context, AttributeSet attrs) {
    super(context, attrs);
  }
  
  @Override
  protected void onInitDefaultValues() {
    super.onInitDefaultValues();
    rippleSpeed = 2;
    rippleSize = 5;
    backgroundResId = -1;
    // Background shape
    setBackgroundDrawable(new ColorDrawable(getResources().getColor(android.R.color.transparent)));
  }
  
  @Override
  public boolean onTouchEvent(MotionEvent event) {
    boolean returnBool = super.onTouchEvent(event);
    if(x != -1){
      x = getWidth() / 2;
      y = getHeight() / 2;
    }
    return returnBool;
  }
  
  @Override
  protected void onDraw(Canvas canvas) {
    if (x != -1) {
      Paint paint = new Paint();
      paint.setAntiAlias(true);
      paint.setColor(backgroundColor);
      canvas.drawCircle(x, y, radius, paint);
      if(radius > getHeight()/rippleSize)
        radius += rippleSpeed;
      if(radius >= getWidth() / 2 - rippleSpeed){
        x = -1;
        y = -1;
        radius = getHeight()/rippleSize;
        if(clickAfterRipple == true && onClickListener != null)
          onClickListener.onClick(this);
      }
    }
    invalidate();
  }

}

Java Source Code List

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