问题描述
Card.class
package com.example.myroom.androidgame2048;
import android.content.Context;import android.view.Gravity;import android.widget.FrameLayout;import android.widget.GridLayout;import android.widget.LinearLayout;import android.widget.TextView;import org.w3c.dom.Text;
/**
Created by myroom on 2016/12/2.*/
public class Card extends FrameLayout {
public Card(Context context){ super(context); label=new TextView(getContext()); label.setTextSize(32); label.setBackgroundColor(0x33ffffff); label.setGravity(Gravity.CENTER); LayoutParams lp= new LayoutParams(-1,-1);
//GridLayout.LayoutParams ll=new GridLayout.LayoutParams(lp);
lp.setMargins(20,20,0,0); addView(label,lp); setNum(0);}private int num=0;private TextView label;public int getNum() { return num;}public void setNum(int num) { this.num=num; if(num<=0) {label.setText('');//要是字符串 }else{label.setText(num+''); } }
public boolean equals(Card card) { return getNum()==card.getNum();//判断数字是否相同}
}
GameView.class
package com.example.myroom.androidgame2048;
import android.content.Context;import android.graphics.Point;import android.util.AttributeSet;import android.util.Log;import android.view.MotionEvent;import android.view.View;import android.widget.GridLayout;import android.widget.Toast;
import java.util.ArrayList;import java.util.List;
/**
Created by myroom on 2016/12/2.*/
public class GameView extends GridLayout {
public GameView(Context context) { super(context); InitGameView();}public GameView(Context context, AttributeSet attrs) { super(context, attrs); InitGameView();}public GameView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); InitGameView();}private void InitGameView(){ setColumnCount(4);//指明是4列 setBackgroundColor(0xffbbada0); setOnTouchListener(new View.OnTouchListener() {private float startX,startY,offsetX,offsetY;@Overridepublic boolean onTouch(View view, MotionEvent motionEvent) { switch (motionEvent.getAction()) {case MotionEvent.ACTION_DOWN: startX = motionEvent.getX(); startY = motionEvent.getY(); break;case MotionEvent.ACTION_UP: offsetX = motionEvent.getX() - startX; offsetY = motionEvent.getY() - startY; if (Math.abs(offsetX) >Math.abs(offsetY)) {if (offsetX < -5) {//向左滑动 swipeLeft();} else if (offsetX > 5) {//向右滑动 swipeRight();}else { if(offsetY< -5){//向上swipeup(); }else if(offsetY> 5){//向下swipeDown(); }}break; } } return true;} });}@Overrideprotected void onSizeChanged(int w, int h, int oldw, int oldh) {//位置变化时 super.onSizeChanged(w, h, oldw, oldh); int cardWidth=(Math.min(w,h)-20)/4;//像素间隔 addCard(cardWidth,cardWidth); startgame();}private void startgame() { for(int y=0;y<4;y++){for(int x=0;x<4;x++){ cardsmap[x][y].setNum(0);} } addRandomNum(); addRandomNum(); addRandomNum(); addRandomNum(); addRandomNum(); addRandomNum(); addRandomNum(); addRandomNum(); addRandomNum(); addRandomNum(); addRandomNum();}private void addCard(int cardWidth,int cardheight){ Card c; for(int y=0;y<4;y++){//添加16张卡片for(int x=0;x<4;x++){ c=new Card(getContext()); c.setNum(0); addView(c,cardWidth,cardheight); cardsmap[x][y]=c;//记录数据} }}private void addRandomNum() { emptyPoints.clear(); for (int y = 0; y < 4; y++) {for (int x = 0; x < 4; x++) { if (cardsmap[x][y].getNum() <= 0) {emptyPoints.add(new Point(x, y)); }} } Point p = emptyPoints.remove((int)( Math.random() * emptyPoints.size())); cardsmap[p.x][p.y].setNum(Math.random() > 0.1 ? 2 : 4);}
private void swipeLeft(){ boolean merge=false;//控制每滑动一次画面就加一个随机数到画面， for (int y = 0; y < 4; y++) {for (int x = 0; x < 4; x++) { for(int x1=x+1;x1<4;x1++){if(cardsmap[x1][y].getNum()>0){ if(cardsmap[x][y].getNum()<=0){cardsmap[x][y].setNum(cardsmap[x1][y].getNum());cardsmap[x1][y].setNum(0);x--;merge=true; }else if(cardsmap[x][y].equals(cardsmap[x1][y])){cardsmap[x][y].setNum(cardsmap[x][y].getNum()*2);cardsmap[x1][y].setNum(0);merge=true; } break;} }} } if(merge){addRandomNum(); }}private void swipeRight(){ Toast.makeText(getContext(),'right',Toast.LENGTH_SHORT).show(); for (int y = 0; y < 4; y++) {for (int x = 3; x >=0; x--) { for(int x1=x-1;x1>=0;x1--){if(cardsmap[x1][y].getNum()>0){ if(cardsmap[x][y].getNum()<=0){cardsmap[x][y].setNum(cardsmap[x1][y].getNum());cardsmap[x1][y].setNum(0);x++;break; }else if(cardsmap[x][y].equals(cardsmap[x1][y])){cardsmap[x][y].setNum(cardsmap[x][y].getNum()*2);cardsmap[x1][y].setNum(0);break; }} }} }}private void swipeup(){ Toast.makeText(getContext(),'up',Toast.LENGTH_SHORT).show(); for (int x = 0; x < 4; x++) {for (int y = 0; y < 4; y++) { for(int y1=y+1;y1<4;y1++){if(cardsmap[x][y1].getNum()>0){ if(cardsmap[x][y].getNum()<=0){cardsmap[x][y].setNum(cardsmap[x][y1].getNum());cardsmap[x][y1].setNum(0);y--;break; }else if(cardsmap[x][y].equals(cardsmap[x][y1])){cardsmap[x][y].setNum(cardsmap[x][y].getNum()*2);cardsmap[x][y1].setNum(0);break; }} }} }}private void swipeDown(){ Toast.makeText(getContext(),'down',Toast.LENGTH_SHORT).show(); for (int x = 0; x < 4; x++) {for (int y = 3; y >=0; y--) { for(int y1=y-1;y1>=0;y1--){if(cardsmap[x][y1].getNum()>0){ if(cardsmap[x][y].getNum()<=0){cardsmap[x][y].setNum(cardsmap[x][y1].getNum());cardsmap[x][y1].setNum(0);y++;break; }else if(cardsmap[x][y].equals(cardsmap[x][y1])){cardsmap[x][y].setNum(cardsmap[x][y].getNum()*2);cardsmap[x][y1].setNum(0);break; }} }} }}private Card[][] cardsmap=new Card[4][4];private List<Point>emptyPoints=new ArrayList<Point>();
}
activity_main.xml<?xml version='1.0' encoding='utf-8'?><LinearLayout
xmlns:android='http://schemas.android.com/apk/res/android'xmlns:tools='http://schemas.android.com/tools'android:layout_width='match_parent'android:layout_height='match_parent'android:orientation='vertical'tools:context='com.example.myroom.androidgame2048.MainActivity'><LinearLayout android:layout_width='match_parent' android:layout_height='wrap_content' android:longClickable='true' android:orientation='horizontal'> <TextViewandroid:layout_width='wrap_content'android:layout_height='wrap_content'android:text='@string/score'/> <TextViewandroid: android:layout_width='wrap_content'android:layout_height='wrap_content'/></LinearLayout><com.example.myroom.androidgame2048.GameView android:layout_width='match_parent' android:layout_height='0dp' android:layout_weight='1' android:id='@+id/gameView'></com.example.myroom.androidgame2048.GameView>
</LinearLayout>
问题解答
回答1：惭愧，括号上下移动嵌到判断左右的操作了，粗心大意还找了这么久[羞愧]
