좌표를 한 배열에 넣을려고하는데 안들어가네요 ㅠㅠ
배열에 넣고 배열을 다시 불러와서 두 꼭지점을 구할려구하느넫 ㅠㅠ
 

    if (action == MotionEvent.ACTION_DOWN) {
     moving=true; 
    } else if (action == MotionEvent.ACTION_MOVE) {
     if(moving==true){
     vertex[vcount++]=x;
     vertex[vcount++]=y;
     vertex[vcount++]=0;
     }
     maxX=vertex[0];
     minX=vertex[0];
     maxY=vertex[1];
     minY=vertex[1];
     for(int i=0;i<vcount;i++){
      }
    
     } else if (action == MotionEvent.ACTION_UP) {
     moving=false;
     count=vcount;
     aa[vcount]=0;
     vcount=0;
         for(int i=0;i<count;i++){
      if(i%3==0){
       if(maxX<=vertex[i])
        maxX=vertex[i];
       else if(minX>=vertex[i])
        minX=vertex[i];
        
      }else if(i%3==1){
       if(maxY<=vertex[i])
        maxY=vertex[i];
       else if(minY>=vertex[i])
        minY=vertex[i];
      }
     }
    }