Android Open Source - nxt-remote-controller Layout Ripple

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Back to project page nxt-remote-controller.

License

The source code is released under:

MIT License

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Java Source Code

package com.gc.materialdesign.views;
//from   ww  w .ja  v a 2s .  c om
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.PorterDuff.Mode;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;
import android.util.AttributeSet;

public class LayoutRipple extends RippleView {

  private Float xRippleOrigin;
  private Float yRippleOrigin;
  float rippleBorderRadius = 0;// radius
  
  public LayoutRipple(Context context, AttributeSet attrs) {
    super(context, attrs);
    setAttributes(attrs);
  }
  
  @Override
  protected void onInitDefaultValues() {
    minWidth = 20;
    minHeight = 20;
    backgroundColor = 0x00ffffff;
    rippleSpeed = 20f;// default speed
  }
  
  @Override
  protected void setAttributes(AttributeSet attrs) {
    super.setAttributes(attrs);
    //????????????????????????????????
    rippleBorderRadius = attrs.getAttributeFloatValue(MATERIALDESIGNXML, "rippleBorderRadius", 0);
  }
  
  // ### RIPPLE EFFECT ###
  
  public Bitmap makeCircle() {
    Bitmap output = Bitmap.createBitmap(getWidth(), getHeight(), Config.ARGB_8888);
    x = (xRippleOrigin == null) ? x : xRippleOrigin;
    y = (yRippleOrigin == null) ? y : yRippleOrigin;
    return makeCircleFromBitmap(output);
  }
  
  @Override
  protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (x != -1) {
      Rect src = new Rect(0, 0, getWidth(), getHeight());
      Rect dst = new Rect(0, 0, getWidth(), getHeight());
      canvas.drawBitmap(cropRoundRect(makeCircle()), src, dst, null);
    }
    invalidate();
  }
  
  /**
   * @param bitmap
   * @return ???????????????????????????????????????
   */
  public Bitmap cropRoundRect(Bitmap bitmap) {
      Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
      bitmap.getHeight(), Config.ARGB_8888);
      Canvas canvas = new Canvas(output);

      final int color = 0xff424242;
      final Paint paint = new Paint();
      final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());

      paint.setAntiAlias(true);
      canvas.drawARGB(0, 0, 0, 0);
      paint.setColor(color);
      RectF rectF = new RectF(0, 0, bitmap.getWidth(), bitmap.getHeight());
      canvas.drawRoundRect(rectF, rippleBorderRadius, rippleBorderRadius, paint);

      paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
      canvas.drawBitmap(bitmap, rect, rect, paint);
      return output;
  }

  
  
  // SETTERS
  
  public void setxRippleOrigin(Float xRippleOrigin) {
    this.xRippleOrigin = xRippleOrigin;
  }

  public void setyRippleOrigin(Float yRippleOrigin) {
    this.yRippleOrigin = yRippleOrigin;
  }
  
  /**
   * set the layoutRipple border radius
   * @param size
   */
  public void setRippleBorderRadius(float size) {
    rippleBorderRadius = size;
  }
  
  // Set color of background
  public void setBackgroundColor(int color){
    backgroundColor = color;
    /**
     * ????????????????????????????????????????????????????????
     */
    if (!settedRippleColor) {
      rippleColor = makePressColor(255);
    }
    super.setBackgroundColor(color);
  }
  
}

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