Android开发 -------- 自己定义View 画五子棋 _android

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【Android开发 -------- 自己定义View 画五子棋】

自己定义View 实现五子棋

配图：

文章图片

文章图片

代码：

package com.example.fiveson; import java.util.LinkedList; import java.util.List; import android.content.Context; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.util.AttributeSet; import android.view.MotionEvent; import android.view.View; public class FiveSon extends View { public FiveSon(Context context) { super(context); // TODO Auto-generated constructor stub init(context, null); } public FiveSon(Context context, AttributeSet attrs) { super(context, attrs); // TODO Auto-generated constructor stub init(context, attrs); } public FiveSon(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); // TODO Auto-generated constructor stub init(context, attrs); } private Paint paint = new Paint(); private Paint circlePaint = new Paint(); // 旗子：信息代表第几行第几列？ private List< int[]> chesses = new LinkedList< int[]> (); private void init(Context context, AttributeSet attrs) { chesses.add(new int[]{3,5}); chesses.add(new int[]{3,6}); } int spacing = 100; @Override protected void onDraw(Canvas canvas) { // TODO Auto-generated method stub super.onDraw(canvas); int width = getWidth(); int height = getHeight(); //1 绘制 X 坐标int num = width / spacing; paint.setColor(Color.BLACK); for(int i=0; i< =num; i++) { canvas.drawLine(spacing*i, 0, spacing*i, height, paint); }num = height/spacing; for(int i=0; i< =num; i++) { canvas.drawLine(0,spacing*i, width,spacing*i, paint); }//2 绘制Y 坐标//3 绘制旗子if(!chesses.isEmpty()) {int count = chesses.size(); for(int i=0; i< count; i++) { // 行列信息 int[] location = chesses.get(i); int rawX = location[1] * spacing; int rawY = location[0] * spacing; if(i%2==0) { circlePaint.setColor(Color.BLACK); }else { circlePaint.setColor(Color.GREEN); }canvas.drawCircle(rawX, rawY, 20, circlePaint); }} } /** * 全然自己定义空间： * * 处理你恶不处理时间爱你的方法: * onTouchEvent() * onKeyEvent() * * 当然也能够通过 * setOnTouchListener() * setOnKeyListener(); * * 外部操作： * setOnTouchListener(OnTouchListener l) * setOnKeyListener(OnKeyListener l) * * * * */ @Override public boolean onTouchEvent(MotionEvent event) {boolean isComsumed = false; int action = event.getAction(); if(action == MotionEvent.ACTION_DOWN) { //分析点击的坐标来推断点击的行数和列数int ex =(int)event.getX(); int ey =(int)event.getY(); int colNum = (int)(ex / spacing); int rowNum = (int)(ey / spacing); intcolcc = ex % spacing; introwcc = ey % spacing; if(colcc> =(spacing/2)) { colcc++; } if(rowcc> =(spacing/2)) { rowcc++; }//推断什么时候add int len = chesses.size(); if(len> 0) { boolean has = false; for(int i = len-1; i> =0; i--) { int[] chs = chesses.get(i); if(rowNum == chs[0] & & colNum == chs[1]) { has = true; break; } } if(!has) { chesses.add(new int[]{rowNum,colNum}); invalidate(); }}else { chesses.add(new int[]{rowNum,colNum}); invalidate(); }isComsumed = true; }else { isComsumed = super.onTouchEvent(event); }return super.onTouchEvent(event); } }