android九宫格解锁

看旁边同事在搞，自己就也试试，完全canvas画出来的，至于优化什么的全部没有，自己搞着玩吧

package com.example.clock;

import java.util.ArrayList;

import java.util.List;

import android.annotation.SuppressLint;

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;

import android.widget.LinearLayout;

public class ClockView extends View{

 Paint p;

 float left;

 float top;

 Dian tempD;

 float tempX=-1;

 float tempY;

 float tempX1=-1;

 float tempY1;

 List<Dian> dian=new ArrayList<Dian>();

 List<Dian> list=new ArrayList<Dian>();

 boolean isTouched=false;

 @SuppressLint("NewApi")

 public ClockView(Context context, AttributeSet attrs, int defStyleAttr,

   int defStyleRes) {

  super(context, attrs, defStyleAttr, defStyleRes);

  p=new Paint();

  p.setStrokeWidth(15);

  tempD=new Dian();

  // TODO Auto-generated constructor stub

 }

 @SuppressLint("NewApi")

 public ClockView(Context context, AttributeSet attrs, int defStyle) {

  super(context, attrs, defStyle);

  p=new Paint();

  p.setStrokeWidth(15);

  tempD=new Dian();

 }

 public ClockView(Context context, AttributeSet attrs) {

  super(context, attrs);

  p=new Paint();

  p.setStrokeWidth(15);

  tempD=new Dian();

 }

 public ClockView(Context context) {

  super(context);

  p=new Paint();

  p.setStrokeWidth(15);

  tempD=new Dian();

 }

 @Override

 protected void onDraw(Canvas canvas) {

  // TODO Auto-generated method stub

  super.onDraw(canvas);

  left=getLeft();

  top=getTop();

  p.setColor(Color.BLACK);

  drawDian(canvas,getWidth(),getHeight());

  for (Dian d : list) {

   if(d.getX1()!=-1){

    canvas.drawLine(d.getX1(), d.getY1(), d.getX2(), d.getY2(), p);

   }

  }

  if(tempX!=-1){

   canvas.drawLine(tempX, tempY, tempX1, tempY1, p);

  }

 }

 @Override

 public boolean onTouchEvent(MotionEvent event) {

  switch (event.getAction()) {

  case MotionEvent.ACTION_DOWN:

   int n=isTouchOk((int)event.getX(),(int)event.getY(), getWidth());

   if(n==-1){

    return false;

   }

   if(isTouched){

    list.clear();

   }

   tempX=dian.get(n).getX1();

   tempY=dian.get(n).getY1();

   Dian dd=new Dian();

   dd.setX2((int)event.getX());

   dd.setY2((int)event.getY());

   dd.setIstouch(true);

   list.add(dd);

   

   return true;

  case MotionEvent.ACTION_MOVE:

   tempX1=event.getX();

   tempY1=event.getY();

   

   int e=isTouchOk((int)tempX1,(int)tempY1,getWidth());

   if(e!=-1){

    Dian ddd=new Dian();

    ddd.setX1(list.get(list.size()-1).getX2());

    ddd.setY1(list.get(list.size()-1).getY2());

    ddd.setX2(dian.get(e).getX1());

    ddd.setY2(dian.get(e).getY1());

    dian.get(e).setIstouch(true);

    list.add(ddd);

    tempX=dian.get(e).getX1();

    tempY=dian.get(e).getY1();

   }

   invalidate();

   break;

  case MotionEvent.ACTION_UP:

   isTouched=true;

   tempX=-1;

   invalidate();

   break;

  default:

   break;

  }

  return super.onTouchEvent(event);

 }

 void drawDian(Canvas c,int w,int h){

  c.drawCircle(left+w/3/2, top+h/3/2, w/3/3, p);

  Dian d1=new Dian();

  d1.setX1((int)(left+w/3/2));

  d1.setY1((int)(top+h/3/2));

  dian.add(d1);

  c.drawCircle(left+w/3/2+w/3, top+h/3/2, w/3/3, p);

  Dian d2=new Dian();

  d2.setX1((int)(left+w/3/2+w/3));

  d2.setY1((int)(top+h/3/2));

  dian.add(d2);

  c.drawCircle(left+w/3/2+w/3*2, top+h/3/2, w/3/3, p);

  Dian d3=new Dian();

  d3.setX1((int)(left+w/3/2+w/3*2));

  d3.setY1((int)(top+h/3/2));

  dian.add(d3);

  c.drawCircle(left+w/3/2, top+h/3/2+h/3, w/3/3, p);

  Dian d4=new Dian();

  d4.setX1((int)(left+w/3/2));

  d4.setY1((int)(top+h/3/2+h/3));

  dian.add(d4);

  c.drawCircle(left+w/3/2+w/3, top+h/3/2+h/3, w/3/3, p);

  Dian d5=new Dian();

  d5.setX1((int)(left+w/3/2+w/3));

  d5.setY1((int)( top+h/3/2+h/3));

  dian.add(d5);

  c.drawCircle(left+w/3/2+w/3*2, top+h/3/2+h/3, w/3/3, p);

  Dian d6=new Dian();

  d6.setX1((int)(left+w/3/2+w/3*2));

  d6.setY1((int)(top+h/3/2+h/3));

  dian.add(d6);

  c.drawCircle(left+w/3/2, top+h/3/2+h/3*2, w/3/3, p);

  Dian d7=new Dian();

  d7.setX1((int)(left+w/3/2));

  d7.setY1((int)(top+h/3/2+h/3*2));

  dian.add(d7);

  c.drawCircle(left+w/3/2+w/3, top+h/3/2+h/3*2, w/3/3, p);

  Dian d8=new Dian();

  d8.setX1((int)(left+w/3/2+w/3));

  d8.setY1((int)( top+h/3/2+h/3*2));

  dian.add(d8);

  c.drawCircle(left+w/3/2+w/3*2, top+h/3/2+h/3*2, w/3/3, p);

  Dian d9=new Dian();

  d9.setX1((int)(left+w/3/2+w/3*2));

  d9.setY1((int)( top+h/3/2+h/3*2));

  dian.add(d9);

 }

 int  isTouchOk(int x,int y,int w){

  int temp;

  for (int i = 0; i < dian.size(); i++) {

   temp=(int) Math.sqrt(Math.abs(x-dian.get(i).getX1())*Math.abs(x-dian.get(i).getX1())

     +Math.abs(y-dian.get(i).getY1())*Math.abs(y-dian.get(i).getY1()));

   if(temp<w/3/3){

    System.out.println(dian.get(i).isIstouch());

    if(!dian.get(i).isIstouch()){

     return i;

    }

   }

  }

  return -1;

 }

}