Android如何自定义View实现拼图小游戏

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PuzzleLayoutView：

public class PuzzleLayoutView extends RelativeLayout implements View.OnClickListener {  //表示将其切成2*2拼图（默认4块）  private int mColumn = 2;  //容器的内边距  private int mPadding;  //每个块块的边距(横,纵  3:表示间距为3dp)  private int mMargin = 3;  //存储ImageView  private ImageView[] mGamePintuItems;  //Item的宽度(一致)  private int mItemWidth;  //游戏的图片  private Bitmap mBitmap;  //切图后的存储  private List mItemBitmaps;  //操作次数  private boolean once;  //容器宽度(游戏面板 高宽一致)  private int mWidth;  //设置游戏是否成功  private boolean isGameSuccess;  //设置游戏是否失败  private boolean isGameOver;  public GamePintuListner mListner;  public PuzzleLayoutView(Context context) {    this(context, null);  }  public PuzzleLayoutView(Context context, AttributeSet attrs) {    this(context, attrs, 0);  }  public PuzzleLayoutView(Context context, AttributeSet attrs, int defStyle) {    super(context, attrs, defStyle);    init();  }  private void init() {    mMargin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 3,        getResources().getDisplayMetrics());//将dp转化为px,或xp转化为px    mPadding = min(getPaddingLeft(), getPaddingRight(), getPaddingTop(), getPaddingBottom());  }  //接口方法  public interface GamePintuListner {    void nextLevel(int nextLevel);//下一关    void timechanged(int currentTime);//关卡时间    void gameover();//游戏结束  }  public void setOnGamePintuListner(GamePintuListner mListner) {    this.mListner = mListner;  }  private int level = 1;  private static final int TIME_CHANGED = 0X123;  private static final int NEXT_LEVEL = 0X124;  private Handler handler = new Handler() {    public void handleMessage(android.os.Message msg) {      switch (msg.what) {        case TIME_CHANGED:          if (isGameSuccess || isGameOver)            return;          if (mListner != null) {            mListner.timechanged(mTime);            //时间结束后,游戏结束            if (mTime == 0) {              isGameOver = true;              mListner.gameover();            }          }          mTime--;          //延迟1秒发送          handler.sendEmptyMessageDelayed(TIME_CHANGED, 1000);          break;        case NEXT_LEVEL:          level = level + 1;//切换到下一关          if (mListner != null) {            mListner.nextLevel(level);          } else {            nextLevel();          }        default:          break;      }    }  };  private boolean isTimeEnabled = false;  private int mTime;  /**   * 设置是否启动时间  (默认不启动)   *   * @param isTimeEnabled   */  public void setTimeEnabled(boolean isTimeEnabled) {    this.isTimeEnabled = isTimeEnabled;  }  /**   * 获取当前布局的大小(正方形)   */  protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {    super.onMeasure(widthMeasureSpec, heightMeasureSpec);    //取宽和高中的最小值    mWidth = Math.min(getMeasuredHeight(), getMeasuredWidth());    if (!once) {      //调用进行切图,以及排序(方法)      initBitmap();      //调用设置ImageView(Item)的宽高等属性(方法)      initItem();      //判断是否开启时间(方法调用)      checkTimeEnable();      once = true;    }    setMeasuredDimension(mWidth, mWidth);//强制调用使面板为正方形  }  /**   * 判断是否开启时间   */  private void checkTimeEnable() {    if (isTimeEnabled) {      //根据当前等级设置时间      countTimeBaseLevel();      //通知线程更新关卡时间      handler.sendEmptyMessage(TIME_CHANGED);    }  }  private void countTimeBaseLevel() {    mTime = (int) Math.pow(2, level) * 60;//第一关120秒 第二关:240 第三关:480  }  /**   * 进行切图,以及排序方法   */  private void initBitmap() {    //将图片引入    if (mBitmap == null) {      mBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.pic_view);//注意此处的导包    }    mItemBitmaps = ImageSplitterUtil.sqlitImage(mBitmap, mColumn);//返回长度为4 (2*2)    //使用sort进行乱排序    Collections.sort(mItemBitmaps, new Comparator() {      public int compare(ImagePieceBean a, ImagePieceBean b) {//注意此处的a,b        //是否大于0.5具有不确定性        return Math.random() > 0.5 ? 1 : -1;      }    });  }  /**   * 设置ImageView(Item)的宽高等属性方法   */  private void initItem() {    //容器的宽度-Item内边距 =所有小块块加起来的/Item个数(宽度)  2:左边和右边边距    mItemWidth = (mWidth - mPadding * 2 - mMargin * (mColumn - 1)) / mColumn;    mGamePintuItems = new ImageView[mColumn * mColumn];//界面块块个数相*    //生成我们的Item,设置Rule(Item间的关系,高矮等)    for (int i = 0; i < mGamePintuItems.length; i++) {      ImageView item = new ImageView(getContext());      /**       * item点击事件       */      item.setOnClickListener(this);      item.setImageBitmap(mItemBitmaps.get(i).getBitmap());//此前以进行过乱排序      mGamePintuItems[i] = item;//保存Item      item.setId(i + 1);      //在Item的tag中存储了index      item.setTag(i + "_" + mItemBitmaps.get(i).getIndex());      RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(mItemWidth, mItemWidth);      //[设置游戏规则]      //设置Item间横向间隙,通过rightMargin      //不是最后一列      if ((i + 1) % mColumn != 0) {        lp.rightMargin = mMargin;      }      //不是第一列      if (i % mColumn != 0) {        lp.addRule(RelativeLayout.RIGHT_OF, mGamePintuItems[i - 1].getId());      }      //如果不是第一行,设置topMargin和rule      if (i + 1 > mColumn) {        lp.topMargin = mMargin;        lp.addRule(RelativeLayout.BELOW, mGamePintuItems[i - mColumn].getId());      }      addView(item, lp);//添加到RelativeLayout中    }  }  /**   * 当过关失败,时间停止时调用此方法(重新开始此关卡)   */  public void restart() {    isGameOver = false;//重置当前关卡    mColumn--;    nextLevel();  }  public void nextLevel() {    this.removeAllViews();//移除当前所有View    mAnimLayout = null;    mColumn++;//由2*2 变为3*3游戏面版    isGameSuccess = false;//游戏未成功(新的开始)    checkTimeEnable();//下一关时间重新计算    initBitmap();    initItem();  }  /**   * 获取多个参数的最小值   */  private int min(int... params) {//...传多个参数    int min = params[0];//获取最小的    for (int param : params) {//发现最小的则赋值      if (param < min) {        min = param;      }    }    return min;  }  /**   * 点击事件   */  private ImageView mFirst;//点击的IItem  private ImageView mSecond;  public void onClick(View v) {    if (isAniming)      return;    //两次点击同一个Item    if (mFirst == v) {      mFirst.setColorFilter(null);      mFirst = null;      return;    }    if (mFirst == null) {      mFirst = (ImageView) v;      mFirst.setColorFilter(Color.parseColor("#5551c4d4"));//设置选中Item时的颜色(55为半透明)    } else {      mSecond = (ImageView) v;      //交换我们的Item      exchangeView();    }  }  /**   * 动画层   */  private RelativeLayout mAnimLayout;  //设置图片进行切换时用户疯狂点击  private boolean isAniming;  /**   * 交换我们的Item   */  private void exchangeView() {    mFirst.setColorFilter(null);//去除颜色状态(高亮)    //调用构造我们的动画层方法    setUpAnimLayout();    //进行图片的交换    ImageView first = new ImageView(getContext());    final Bitmap firstBitmap = mItemBitmaps.get(getImageIdByTag((String) mFirst.getTag())).getBitmap();    first.setImageBitmap(firstBitmap);    LayoutParams lp = new LayoutParams(mItemWidth, mItemWidth);    lp.leftMargin = mFirst.getLeft() - mPadding;    lp.topMargin = mFirst.getTop() - mPadding;    first.setLayoutParams(lp);    mAnimLayout.addView(first);//添加至动画层    ImageView second = new ImageView(getContext());    final Bitmap secondBitmap = mItemBitmaps.get(getImageIdByTag((String) mSecond.getTag())).getBitmap();    second.setImageBitmap(secondBitmap);    LayoutParams lp2 = new LayoutParams(mItemWidth, mItemWidth);    lp2.leftMargin = mSecond.getLeft() - mPadding;    lp2.topMargin = mSecond.getTop() - mPadding;    second.setLayoutParams(lp2);    mAnimLayout.addView(second);//添加至动画层    //设置动画    TranslateAnimation animFirst = new TranslateAnimation(0, mSecond.getLeft() - mFirst.getLeft(),        0, mSecond.getTop() - mFirst.getTop());    animFirst.setDuration(500);//设置动画时间    animFirst.setFillAfter(true);//设置动画结束的位置    first.startAnimation(animFirst);//启动动画    TranslateAnimation animSecond = new TranslateAnimation(0, -mSecond.getLeft() + mFirst.getLeft(),        0, -mSecond.getTop() + mFirst.getTop());    animSecond.setDuration(500);//设置动画时间    animSecond.setFillAfter(true);//设置动画结束的位置    second.startAnimation(animSecond);//启动动画    /**     * 监听动画事件     */    animFirst.setAnimationListener(new Animation.AnimationListener() {      public void onAnimationStart(Animation animation) {        mFirst.setVisibility(View.INVISIBLE);//隐藏动画        mSecond.setVisibility(View.INVISIBLE);        isAniming = true;      }      public void onAnimationRepeat(Animation animation) {      }      public void onAnimationEnd(Animation animation) {        String firstTag = (String) mFirst.getTag();        String secondTag = (String) mSecond.getTag();        mFirst.setImageBitmap(secondBitmap);        mSecond.setImageBitmap(firstBitmap);        mFirst.setTag(secondTag);        mSecond.setTag(firstTag);        mFirst.setVisibility(View.VISIBLE);//显示隐藏的图片        mSecond.setVisibility(View.VISIBLE);        //此处为空,并不是将对象设置为null 而是将mFirst与Bitmap对象链接的线断开        mFirst = mSecond = null;//回到初始状态        mAnimLayout.removeAllViews();//移除动画层的两个View        //调用判断游戏成功时的方法        checkSuccess();        isAniming = false;      }    });  }  /**   * 判断游戏是否成功   */  private void checkSuccess() {    boolean isSuccess = true;    for (int i = 0; i < mGamePintuItems.length; i++) {      ImageView imageView = mGamePintuItems[i];      //getImageIndex:上面的方法名(注意此处方法名)      if (getImageIndex((String) imageView.getTag()) != i) {        isSuccess = false;      }    }    if (isSuccess) {      isGameSuccess = true;      handler.removeMessages(TIME_CHANGED);//进入下一关时的时间      Log.e("TAG", "SUCCESS");      Toast.makeText(getContext(), "Success,level up 游戏升级!!!", Toast.LENGTH_LONG).show();      handler.sendEmptyMessage(NEXT_LEVEL);    }  }  /**   * 根据tag获取Id   */  public int getImageIdByTag(String tag) {    String[] split = tag.split("_");    return Integer.parseInt(split[0]);//拿ID  }  public int getImageIndex(String tag) {    String[] split = tag.split("_");    return Integer.parseInt(split[1]);//拿ID  }  /**   * 构造我们的动画层   */  private void setUpAnimLayout() {    if (mAnimLayout == null) {      mAnimLayout = new RelativeLayout(getContext());      addView(mAnimLayout);//添加到游戏面板中    }  }}

工具类：ImageSplitterUtil

public class ImageSplitterUtil {  /**   * 传入bitmap,切成piece*piece块   */  public static List sqlitImage(Bitmap bitmap, int piece) {    List ImagePieceBeans = new ArrayList<>();    int width = bitmap.getWidth();//拿到图片宽高    int height = bitmap.getHeight();    int pieceWidth = Math.min(width, height) / piece;//得到每一块的宽度    for (int i = 0; i < piece; i++) {//切第一行      for (int j = 0; j < piece; j++) {//循环切第二,三行        ImagePieceBean ImagePieceBean = new ImagePieceBean();        ImagePieceBean.setIndex(j + i * piece);//第一次i为0,第0行 j++递增 0-6        int x = j * pieceWidth;//第一次循环X,Y为0        int y = i * pieceWidth;        ImagePieceBean.setBitmap(Bitmap.createBitmap(bitmap, x, y, pieceWidth, pieceWidth));        ImagePieceBeans.add(ImagePieceBean);      }    }    return ImagePieceBeans;  }}

实体类：ImagePieceBean

public class ImagePieceBean {  private int index;  //表示当前第几块  private Bitmap bitmap;  //当前图片  public ImagePieceBean() {  }  //快捷键构造方法 Source 倒3  public ImagePieceBean(int index, Bitmap bitmap) {    this.index = index;    this.bitmap = bitmap;  }  public int getIndex() {    return index;  }  public void setIndex(int index) {    this.index = index;  }  public Bitmap getBitmap() {    return bitmap;  }  public void setBitmap(Bitmap bitmap) {    this.bitmap = bitmap;  }  public String toString() {    return "ImagePiece [index=" + index + ", bitmap=" + bitmap + "]";  }}

使用方法：GameActivity

/** * 总结: * 1.自定义控件选择,九宫格,RelativeLayout, id+Rule * 2.切图 * 3.动画图层 * 4.pause resume restart * 5.游戏时间 Handler sendMessageDelayed() 延迟一秒发送线程 */public class GameActivity extends AppCompatActivity {  private PuzzleLayoutView puzzleLayoutView;  private TextView mLevel, mTime;  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    requestWindowFeature(Window.FEATURE_NO_TITLE);    setContentView(R.layout.activity_game);    mLevel = this.findViewById(R.id.id_level);    mTime = this.findViewById(R.id.id_time);    puzzleLayoutView = this.findViewById(R.id.puzzle_layout_view);    puzzleLayoutView.setTimeEnabled(true);    //监听事件    puzzleLayoutView.setOnGamePintuListner(new PuzzleLayoutView.GamePintuListner() {      public void timechanged(int currentTime) {        //此处为int 注意加""        mTime.setText(currentTime + "秒");      }      public void nextLevel(final int nextLevel) {        //弹出提示框        new AlertDialog.Builder(GameActivity.this).setTitle("游戏信息")            .setMessage("游戏升级").setPositiveButton("进入下一关",            new DialogInterface.OnClickListener() {              public void onClick(DialogInterface dialog, int which) {                //游戏结束后,调用下一关                puzzleLayoutView.nextLevel();                mLevel.setText("第" + +nextLevel + "关");              }            }).show();      }      public void gameover() {        //弹出提示框        new AlertDialog.Builder(GameActivity.this).setTitle("游戏信息")            .setMessage("游戏结束!").setPositiveButton("是否继续该关卡?",            new DialogInterface.OnClickListener() {              public void onClick(DialogInterface dialog, int which) {                puzzleLayoutView.restart();//重新启动              }            }).setNegativeButton("是否放弃该游戏!", new DialogInterface.OnClickListener() {          public void onClick(DialogInterface dialog, int which) {            finish();          }        }).show();      }    });  }}

对应布局：activity_game

注意：pic_view图片资源自行更换

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