java代码
packagecom.szpt.app;/* 手机编程王APP & AIDE编译器联合出品 官方微信2133688724 微信公众号：手机编程APP 官网：www.shoujibiancheng.com */importandroid.os.Bundle;importandroid.view.View;importandroid.widget.Button;importandroid.widget.GridLayout;importandroid.widget.TextView;importandroidx.appcompat.app.AppCompatActivity;importjava.util.ArrayList;importjava.util.Collections;importjava.util.List;publicclassMainActivityextendsAppCompatActivityimplementsView.OnClickListener{privateGridLayoutgridLayout;privateTextViewtvStatus;privateButtonbtnReset;privatefinalintSIZE=3;privateButton[][]buttons=newButton[SIZE][SIZE];privateintemptyX=2,emptyY=2;privateint[]nums={1,2,3,4,5,6,7,8,0};@OverrideprotectedvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);gridLayout=findViewById(R.id.grid_layout);tvStatus=findViewById(R.id.tv_status);btnReset=findViewById(R.id.btn_reset);initGrid();btnReset.setOnClickListener(v->resetGame());}privatevoidinitGrid(){gridLayout.removeAllViews();for(inti=0;i<SIZE;i++){for(intj=0;j<SIZE;j++){Buttonbtn=newButton(this);btn.setText(nums[i*SIZE+j]==0?"":String.valueOf(nums[i*SIZE+j]));btn.setTextSize(28);btn.setPadding(0,0,0,0);btn.setOnClickListener(this);buttons[i][j]=btn;GridLayout.LayoutParamsparams=newGridLayout.LayoutParams();params.width=100;params.height=100;params.setMargins(2,2,2,2);gridLayout.addView(btn,params);}}}privatevoidresetGame(){List<Integer>numList=newArrayList<>();for(intnum:nums)numList.add(num);do{Collections.shuffle(numList);for(inti=0;i<numList.size();i++){nums[i]=numList.get(i);if(nums[i]==0){emptyX=i/SIZE;emptyY=i%SIZE;}}}while(!isSolvable());updateGrid();tvStatus.setText("3×3 数字拼图");}privatevoidupdateGrid(){for(inti=0;i<SIZE;i++){for(intj=0;j<SIZE;j++){intnum=nums[i*SIZE+j];buttons[i][j].setText(num==0?"":String.valueOf(num));}}}privatebooleanisSolvable(){intinversion=0;for(inti=0;i<nums.length-1;i++){for(intj=i+1;j<nums.length;j++){if(nums[i]!=0&&nums[j]!=0&&nums[i]>nums[j]){inversion++;}}}returninversion%2==0;}@OverridepublicvoidonClick(Viewv){for(inti=0;i<SIZE;i++){for(intj=0;j<SIZE;j++){if(v==buttons[i][j]){if((Math.abs(i-emptyX)==1&&j==emptyY)||(Math.abs(j-emptyY)==1&&i==emptyX)){inttemp=nums[i*SIZE+j];nums[i*SIZE+j]=nums[emptyX*SIZE+emptyY];nums[emptyX*SIZE+emptyY]=temp;emptyX=i;emptyY=j;updateGrid();checkWin();}return;}}}}privatevoidcheckWin(){booleanisWin=true;for(inti=0;i<nums.length-1;i++){if(nums[i]!=i+1){isWin=false;break;}}if(isWin){tvStatus.setText("恭喜！拼图完成！");}}}activity_main.xml代码<?xml version="1.0"encoding="utf-8"?><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:gravity="center"android:orientation="vertical"android:background="#f5f5f5"><TextViewandroid:id="@+id/tv_status"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="3×3 数字拼图"android:textSize="24sp"android:layout_marginBottom="20dp"/><GridLayoutandroid:id="@+id/grid_layout"android:layout_width="300dp"android:layout_height="300dp"android:columnCount="3"android:rowCount="3"></GridLayout><Buttonandroid:id="@+id/btn_reset"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="重新开始"android:layout_marginTop="20dp"android:textSize="18sp"/></LinearLayout>
