Android 自定义View 环绕六边形控件及其TouchEvent事件的监听

package com.fairytale110.demo.studio21application.Widget;

import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.Rect;
import android.graphics.drawable.BitmapDrawable;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;

import com.fairytale110.demo.studio21application.R;

/**
* Created by   fairytale110
* Creat date   2016/8/22 17:01
* Copy Right   www.xkyiliao.com
* function
*/
public class HoneycombVView extends View {

private int paddingWidth = 15;

private float lineLength = 5;

private int viewWidth;
private int viewHeight;
private float centerX;
private float centerY;

private float[] arrayCenterX;

private float[] arrayCenterY;
private String[] tittles;

private int[] colorS = {Color.parseColor("#33B5E5"),
Color.parseColor("#AA66CC"),
Color.parseColor("#99CC00"),
Color.parseColor("#FFBB33"),
Color.parseColor("#AA66CC"),
Color.parseColor("#FF4444"),
Color.parseColor("#FFFFFF")};

private int[] colorPressed = {Color.parseColor("#AA66CC"),
Color.parseColor("#99CC00"),
Color.parseColor("#FF4444"),
Color.parseColor("#AA66CC"),
Color.parseColor("#FFBB33"),
Color.parseColor("#33B5E5"),
Color.parseColor("#99CC00")};
private Paint linePaint;
private Paint TextPaint;
private Paint mBitPaint;
private Path linePath;
private Rect mSrcRect, mDestRect;
private Bitmap[] mBitmaps;
private Resources mResources;
private ActionListener onActionListener;
public HoneycombVView(Context context) {
this(context, null);
}

public HoneycombVView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}

public HoneycombVView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
mResources = getResources();

linePaint = new Paint();
linePaint.setStyle(Paint.Style.FILL_AND_STROKE);
linePaint.setAntiAlias(true);
linePaint.setShadowLayer(6f,5F,-5f,Color.GRAY);

TextPaint = new Paint();
TextPaint.setStyle(Paint.Style.STROKE);
TextPaint.setAntiAlias(true);
TextPaint.setColor(Color.WHITE);

mBitPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
mBitPaint.setFilterBitmap(true);
mBitPaint.setDither(true);

mSrcRect = new Rect();
mDestRect = new Rect();
linePath = new Path();
}

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
viewHeight = MeasureSpec.getSize(heightMeasureSpec);
viewWidth = MeasureSpec.getSize(widthMeasureSpec);

centerX = viewWidth / 2F;
centerY = viewHeight / 2F;
float lineLengthH = (viewHeight - 2 * paddingWidth) / 5;
float lineLengthW = (viewWidth - 2 * paddingWidth) / (3 * (float) Math.sqrt((3)));
lineLength = viewHeight > viewWidth ? lineLengthW : lineLengthH;

initData();

setMeasuredDimension(viewWidth, viewHeight);

}

private void initData() {
arrayCenterX = new float[]{centerX - lineLength * (float) Math.sqrt(3) / 2 - paddingWidth / 2,
centerX + lineLength * (float) Math.sqrt(3) / 2 + paddingWidth / 2,
centerX + lineLength * (float) Math.sqrt(3) + paddingWidth,
centerX + lineLength * (float) Math.sqrt(3) / 2 + paddingWidth / 2,
centerX - lineLength * (float) Math.sqrt(3) / 2 - paddingWidth / 2,
centerX - lineLength * (float) Math.sqrt(3) - paddingWidth,
centerX};
arrayCenterY = new float[]{centerY - 3 * lineLength / 2 - paddingWidth ,
centerY - 3 * lineLength / 2 - paddingWidth ,
centerY,
centerY + 3 * lineLength / 2 + paddingWidth ,
centerY + 3 * lineLength / 2 + paddingWidth ,
centerY,centerY};
tittles = new String[]{"优惠活动", "技术文档", "供求信息", "新闻", "商品查询", "广告", "公司简介"};

Bitmap mBitmap = ((BitmapDrawable) mResources.getDrawable(R.drawable.ic_launcher)).getBitmap();
mBitmaps = new Bitmap[]{mBitmap, mBitmap, mBitmap, mBitmap, mBitmap, mBitmap, mBitmap};
}

@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);

for (int index = 0; index < 6; index++) {
linePaint.setColor(curAction == index ? colorPressed[index] :colorS[index] );
drawHoneycomb(canvas, arrayCenterX[index], arrayCenterY[index], tittles[index], mBitmaps[index]);
}
linePaint.setColor(curAction == 6 ? colorPressed[6] :colorS[6] );
drawHoneycomb(canvas, centerX, centerY, tittles[6], mBitmaps[6]);
}

private int curAction = -1;

@Override
public boolean onTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
float touchedX = event.getX();
float touchedY = event.getY();
curAction = onTouchquareS(touchedX, touchedY);
postInvalidate();
break;
case MotionEvent.ACTION_UP:
if (onActionListener != null){
onActionListener.ActionListener(curAction);
}
curAction = -1;
postInvalidate();
break;
}
return true;
}

private void drawHoneycomb(Canvas canvas, float X, float Y, String title, Bitmap bitmap) {
TextPaint.setColor(Color.WHITE);

linePath.reset();
linePath.moveTo(X, Y - lineLength);
linePath.lineTo(X + lineLength * (float) Math.sqrt(3) / 2, Y - lineLength / 2);
linePath.lineTo(X + lineLength * (float) Math.sqrt(3) / 2, Y + lineLength / 2);
linePath.lineTo(X, Y + lineLength);
linePath.lineTo(X - lineLength * (float) Math.sqrt(3) / 2, Y + lineLength / 2);
linePath.lineTo(X - lineLength * (float) Math.sqrt(3) / 2, Y - lineLength / 2);
linePath.close();

canvas.drawPath(linePath, linePaint);

if (TextUtils.isEmpty(title)) {
title = "无标题";
}

title = title.length() > 5 ? title.substring(0, 5) : title;
int lengthTxt = title.length() > 5 ? 5 : title.length();
float textSize = lineLength * (float) Math.sqrt(3) / 6;
float startX = X - textSize * lengthTxt / 2;
float startY = Y + lineLength / 2;
TextPaint.setTextSize(textSize);

if (title.equals("公司简介")){
TextPaint.setColor(Color.parseColor("#A4D3EE"));
}
canvas.drawText(title, startX, startY, TextPaint);

mDestRect.left = (int) (X - lineLength / 4);
mDestRect.right = (int) (X + lineLength / 4);
mDestRect.top = (int) (Y - lineLength / 2);
mDestRect.bottom = (int) Y;

canvas.drawBitmap(bitmap, null, mDestRect, new Paint());
}

private int onTouchquareS(float x, float y) {

int curAction = -1;

for (int index = 0; index < arrayCenterX.length; index++) {
float curX = arrayCenterX[index];
float curY = arrayCenterY[index];

if (Math.pow(curX - x, 2) + Math.pow(curY - y, 2) <= 3 * Math.pow(lineLength, 2) / 4) {
curAction = index;
break;
}
}
return curAction;

}

public interface ActionListener{

void ActionListener(int actionIndex);
}

public void setOnActionListener(ActionListener onActionListener){
this.onActionListener = onActionListener;
}
}