Java 井字游戏 AI 元素不工作
Java Tic tac toe AI element not working
因此，尝试制作一个 'simple' 井字游戏应用程序，将用户输入与 'AI' 相匹配，该 'AI' 选择（随机）空单元格作为实体进行游戏反对。
我遇到的问题是我正在使用（在 playerClick 中）决定轮到谁的 true/false 开关似乎不起作用。它始终如一。
这意味着（我相信这是原因），我的 AI 方法 aiPlayerPick 绑定到 randomButtonPick，不是 运行，只有来自人类用户的输入才会被输入.
那么我的问题是，我的逻辑在哪里崩溃了？
我认为这已经很清楚了，不用再喋喋不休了。
需要任何说明，请直接提问。
谢谢。
package com.example.richardcurteis.connect3;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TableLayout;
import android.widget.TableRow;
import java.util.Random;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
boolean noughtsTurn;
ArrayList board;
Players player;
String aiPickedButton;
public void receiveClick(View view) {
String buttonPressed = String.valueOf(view.getTag());
board.remove(buttonPressed);
System.out.println(board);
System.out.println("receiveClick: " + noughtsTurn); // Is noughtsTurn true or false?
humanPlayerTurn(view);
aiPlayerTurn(view);
}
public void humanPlayerTurn(View view) {
playerClick(view);
noughtsTurn = false; // Set noughtsTurn to false for next player to have their turn
}
public void aiPlayerTurn(View view) {
aiPickedButton = randomButtonPick();
playerClick(view);
noughtsTurn = true; // Set noughtsTurn to true for first player to start again
}
public void playerClick(View view) {
Button B;
if (view instanceof Button) {
B = (Button) view;
if ( noughtsTurn ) {
B.setText(player.noughtsPlayer());
B.setEnabled(false);
} else {
aiPlayerPick(); // This is where the AI process should mirror human input
}
}
}
public String randomButtonPick() {
Random randomNumber = new Random();
String arrayItem = (String) board.get(randomNumber.nextInt(board.size()));
return arrayItem;
}
public Button aiPlayerPick() {
Button btn = null;
TableLayout tableLayout = (TableLayout) findViewById(R.id.tableLayout);
for (int rowIndex = 0; rowIndex < tableLayout.getChildCount(); rowIndex++) {
View tableLayoutChild = tableLayout.getChildAt(rowIndex);
if (tableLayoutChild instanceof TableRow) {
for (int i = 0; i < ((ViewGroup) tableLayoutChild).getChildCount(); i++) {
View view = ((ViewGroup) tableLayoutChild).getChildAt(i);
if (view instanceof Button && view.getTag() == aiPickedButton) {
View btn_v = view.findViewWithTag(aiPickedButton);
btn = (Button) btn_v;
btn.setText(player.crossesPlayer());
btn.setEnabled(false);
break;
} else {
i++;
}
}
}
}
return btn;
}
public class Players {
public String noughtsPlayer() { return "O"; }
public String crossesPlayer() { return "X"; }
//public String blankButton() { return ""; } // Will be implemented eventually to help clear board
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
boolean noughtsTurn = true;
System.out.println("Start: " + noughtsTurn);
board = new ArrayList();
for (int x = 0; x < getBoardSize(); x++) {
String y = String.valueOf(x);
board.add(y);
}
player = new Players();
}
public int getBoardSize() {
int buttonCount = 0;
TableLayout tableLayout = (TableLayout) findViewById(R.id.tableLayout);
for (int rowIndex = 0; rowIndex < tableLayout.getChildCount(); rowIndex++) {
View tableLayoutChild = tableLayout.getChildAt(rowIndex);
if (tableLayoutChild instanceof TableRow) {
for (int i = 0; i < ((ViewGroup) tableLayoutChild).getChildCount(); i++) {
View view = ((ViewGroup) tableLayoutChild).getChildAt(i);
if (view instanceof Button) {
buttonCount++;
}
}
}
}
return buttonCount;
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
XML:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.example.richardcurteis.connect3.MainActivity"
tools:showIn="@layout/activity_main"
android:background="#070000">
<TableLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentRight="false"
android:layout_alignParentEnd="false"
android:layout_alignParentStart="false"
android:layout_centerInParent="true"
android:id="@+id/tableLayout"
android:background="#000000">
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton1"
android:layout_column="4"
android:onClick="receiveClick"
android:tag="0" />
android:nestedScrollingEnabled="false" />
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton2"
android:layout_column="12"
android:onClick="receiveClick"
android:tag="1" />
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton3"
android:layout_column="19"
android:onClick="receiveClick"
android:tag="2" />
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton4"
android:layout_column="4"
android:onClick="receiveClick"
android:tag="3"/>
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton5"
android:layout_column="12"
android:onClick="receiveClick"
android:tag="4"/>
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton6"
android:layout_column="19"
android:onClick="receiveClick"
android:tag="5"/>
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton7"
android:layout_column="4"
android:onClick="receiveClick"
android:tag="6"/>
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton8"
android:layout_column="12"
android:onClick="receiveClick"
android:tag="7"/>
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton9"
android:layout_column="19"
android:onClick="receiveClick"
android:tag="8" />
</TableRow>
</TableLayout>
<Button
android:layout_width="200dp"
android:layout_height="120dp"
android:text="New Game"
android:id="@+id/newGameButton"
android:layout_below="@+id/tableLayout"
android:layout_centerHorizontal="true"
android:layout_marginTop="61dp" />
</RelativeLayout>
日志和错误：
01-04 23:08:58.520 4380-4380/com.example.richardcurteis.connect3 I/art: Not late-enabling -Xcheck:jni (already on)
01-04 23:08:58.627 4380-4380/com.example.richardcurteis.connect3 W/System: ClassLoader referenced unknown path: /data/app/com.example.richardcurteis.connect3-1/lib/x86
01-04 23:08:58.977 4380-4380/com.example.richardcurteis.connect3 I/System.out: Start: true
01-04 23:08:59.008 4380-4407/com.example.richardcurteis.connect3 D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
01-04 23:08:59.138 4380-4407/com.example.richardcurteis.connect3 I/OpenGLRenderer: Initialized EGL, version 1.4
01-04 23:08:59.192 4380-4407/com.example.richardcurteis.connect3 W/EGL_emulation: eglSurfaceAttrib not implemented
01-04 23:08:59.192 4380-4407/com.example.richardcurteis.connect3 W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0xabe05620, error=EGL_SUCCESS
01-04 23:09:06.653 4380-4380/com.example.richardcurteis.connect3 I/System.out: [1, 2, 3, 4, 5, 6, 7, 8]
01-04 23:09:06.654 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: false
01-04 23:09:09.088 4380-4380/com.example.richardcurteis.connect3 I/System.out: [1, 2, 3, 4, 5, 6, 7, 8]
01-04 23:09:09.088 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:11.709 4380-4380/com.example.richardcurteis.connect3 I/System.out: [2, 3, 4, 5, 6, 7, 8]
01-04 23:09:11.709 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:15.156 4380-4380/com.example.richardcurteis.connect3 I/System.out: [3, 4, 5, 6, 7, 8]
01-04 23:09:15.156 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:16.418 4380-4380/com.example.richardcurteis.connect3 I/System.out: [3, 4, 6, 7, 8]
01-04 23:09:16.418 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:17.060 4380-4380/com.example.richardcurteis.connect3 I/System.out: [3, 6, 7, 8]
01-04 23:09:17.061 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:17.664 4380-4380/com.example.richardcurteis.connect3 I/System.out: [6, 7, 8]
01-04 23:09:17.672 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:18.378 4380-4380/com.example.richardcurteis.connect3 I/System.out: [7, 8]
01-04 23:09:18.378 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:18.905 4380-4380/com.example.richardcurteis.connect3 I/System.out: [8]
01-04 23:09:18.913 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:19.487 4380-4380/com.example.richardcurteis.connect3 I/System.out: []
01-04 23:09:19.489 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:19.494 4380-4380/com.example.richardcurteis.connect3 D/AndroidRuntime: Shutting down VM
01-04 23:09:19.494 4380-4380/com.example.richardcurteis.connect3 E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.richardcurteis.connect3, PID: 4380
java.lang.IllegalStateException: Could not execute method for android:onClick
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:275)
at android.view.View.performClick(View.java:5198)
at android.view.View$PerformClick.run(View.java:21147)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:270)
at android.view.View.performClick(View.java:5198)
at android.view.View$PerformClick.run(View.java:21147)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: java.lang.IllegalArgumentException: n <= 0: 0
at java.util.Random.nextInt(Random.java:182)
at com.example.richardcurteis.connect3.MainActivity.randomButtonPick(MainActivity.java:60)
at com.example.richardcurteis.connect3.MainActivity.aiPlayerTurn(MainActivity.java:40)
at com.example.richardcurteis.connect3.MainActivity.receiveClick(MainActivity.java:31)
at java.lang.reflect.Method.invoke(Native Method)
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:270)
at android.view.View.performClick(View.java:5198)
at android.view.View$PerformClick.run(View.java:21147)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
True/False 问题已解决。
问题是 onCreate():
中的这一行
boolean noughtsTurn = true;
布尔值 noughtsTurn 也在页面顶部这样声明。
public class MainActivity extends AppCompatActivity {
boolean noughtsTurn;
ArrayList board;
Players player;
String aiPickedButton;
...
...
这意味着它总是正确的。
在 onCreate 中更改为以下，现在 true/false 开关工作正常。
noughtsTurn = true;
因此，尝试制作一个 'simple' 井字游戏应用程序，将用户输入与 'AI' 相匹配，该 'AI' 选择（随机）空单元格作为实体进行游戏反对。
我遇到的问题是我正在使用（在 playerClick 中）决定轮到谁的 true/false 开关似乎不起作用。它始终如一。
这意味着（我相信这是原因），我的 AI 方法 aiPlayerPick 绑定到 randomButtonPick，不是 运行，只有来自人类用户的输入才会被输入.
那么我的问题是，我的逻辑在哪里崩溃了？
我认为这已经很清楚了，不用再喋喋不休了。 需要任何说明，请直接提问。
谢谢。
package com.example.richardcurteis.connect3;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TableLayout;
import android.widget.TableRow;
import java.util.Random;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
boolean noughtsTurn;
ArrayList board;
Players player;
String aiPickedButton;
public void receiveClick(View view) {
String buttonPressed = String.valueOf(view.getTag());
board.remove(buttonPressed);
System.out.println(board);
System.out.println("receiveClick: " + noughtsTurn); // Is noughtsTurn true or false?
humanPlayerTurn(view);
aiPlayerTurn(view);
}
public void humanPlayerTurn(View view) {
playerClick(view);
noughtsTurn = false; // Set noughtsTurn to false for next player to have their turn
}
public void aiPlayerTurn(View view) {
aiPickedButton = randomButtonPick();
playerClick(view);
noughtsTurn = true; // Set noughtsTurn to true for first player to start again
}
public void playerClick(View view) {
Button B;
if (view instanceof Button) {
B = (Button) view;
if ( noughtsTurn ) {
B.setText(player.noughtsPlayer());
B.setEnabled(false);
} else {
aiPlayerPick(); // This is where the AI process should mirror human input
}
}
}
public String randomButtonPick() {
Random randomNumber = new Random();
String arrayItem = (String) board.get(randomNumber.nextInt(board.size()));
return arrayItem;
}
public Button aiPlayerPick() {
Button btn = null;
TableLayout tableLayout = (TableLayout) findViewById(R.id.tableLayout);
for (int rowIndex = 0; rowIndex < tableLayout.getChildCount(); rowIndex++) {
View tableLayoutChild = tableLayout.getChildAt(rowIndex);
if (tableLayoutChild instanceof TableRow) {
for (int i = 0; i < ((ViewGroup) tableLayoutChild).getChildCount(); i++) {
View view = ((ViewGroup) tableLayoutChild).getChildAt(i);
if (view instanceof Button && view.getTag() == aiPickedButton) {
View btn_v = view.findViewWithTag(aiPickedButton);
btn = (Button) btn_v;
btn.setText(player.crossesPlayer());
btn.setEnabled(false);
break;
} else {
i++;
}
}
}
}
return btn;
}
public class Players {
public String noughtsPlayer() { return "O"; }
public String crossesPlayer() { return "X"; }
//public String blankButton() { return ""; } // Will be implemented eventually to help clear board
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
boolean noughtsTurn = true;
System.out.println("Start: " + noughtsTurn);
board = new ArrayList();
for (int x = 0; x < getBoardSize(); x++) {
String y = String.valueOf(x);
board.add(y);
}
player = new Players();
}
public int getBoardSize() {
int buttonCount = 0;
TableLayout tableLayout = (TableLayout) findViewById(R.id.tableLayout);
for (int rowIndex = 0; rowIndex < tableLayout.getChildCount(); rowIndex++) {
View tableLayoutChild = tableLayout.getChildAt(rowIndex);
if (tableLayoutChild instanceof TableRow) {
for (int i = 0; i < ((ViewGroup) tableLayoutChild).getChildCount(); i++) {
View view = ((ViewGroup) tableLayoutChild).getChildAt(i);
if (view instanceof Button) {
buttonCount++;
}
}
}
}
return buttonCount;
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
XML:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.example.richardcurteis.connect3.MainActivity"
tools:showIn="@layout/activity_main"
android:background="#070000">
<TableLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentRight="false"
android:layout_alignParentEnd="false"
android:layout_alignParentStart="false"
android:layout_centerInParent="true"
android:id="@+id/tableLayout"
android:background="#000000">
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton1"
android:layout_column="4"
android:onClick="receiveClick"
android:tag="0" />
android:nestedScrollingEnabled="false" />
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton2"
android:layout_column="12"
android:onClick="receiveClick"
android:tag="1" />
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton3"
android:layout_column="19"
android:onClick="receiveClick"
android:tag="2" />
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton4"
android:layout_column="4"
android:onClick="receiveClick"
android:tag="3"/>
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton5"
android:layout_column="12"
android:onClick="receiveClick"
android:tag="4"/>
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton6"
android:layout_column="19"
android:onClick="receiveClick"
android:tag="5"/>
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"></TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton7"
android:layout_column="4"
android:onClick="receiveClick"
android:tag="6"/>
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton8"
android:layout_column="12"
android:onClick="receiveClick"
android:tag="7"/>
<Button
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/gridButton9"
android:layout_column="19"
android:onClick="receiveClick"
android:tag="8" />
</TableRow>
</TableLayout>
<Button
android:layout_width="200dp"
android:layout_height="120dp"
android:text="New Game"
android:id="@+id/newGameButton"
android:layout_below="@+id/tableLayout"
android:layout_centerHorizontal="true"
android:layout_marginTop="61dp" />
</RelativeLayout>
日志和错误：
01-04 23:08:58.520 4380-4380/com.example.richardcurteis.connect3 I/art: Not late-enabling -Xcheck:jni (already on)
01-04 23:08:58.627 4380-4380/com.example.richardcurteis.connect3 W/System: ClassLoader referenced unknown path: /data/app/com.example.richardcurteis.connect3-1/lib/x86
01-04 23:08:58.977 4380-4380/com.example.richardcurteis.connect3 I/System.out: Start: true
01-04 23:08:59.008 4380-4407/com.example.richardcurteis.connect3 D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
01-04 23:08:59.138 4380-4407/com.example.richardcurteis.connect3 I/OpenGLRenderer: Initialized EGL, version 1.4
01-04 23:08:59.192 4380-4407/com.example.richardcurteis.connect3 W/EGL_emulation: eglSurfaceAttrib not implemented
01-04 23:08:59.192 4380-4407/com.example.richardcurteis.connect3 W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0xabe05620, error=EGL_SUCCESS
01-04 23:09:06.653 4380-4380/com.example.richardcurteis.connect3 I/System.out: [1, 2, 3, 4, 5, 6, 7, 8]
01-04 23:09:06.654 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: false
01-04 23:09:09.088 4380-4380/com.example.richardcurteis.connect3 I/System.out: [1, 2, 3, 4, 5, 6, 7, 8]
01-04 23:09:09.088 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:11.709 4380-4380/com.example.richardcurteis.connect3 I/System.out: [2, 3, 4, 5, 6, 7, 8]
01-04 23:09:11.709 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:15.156 4380-4380/com.example.richardcurteis.connect3 I/System.out: [3, 4, 5, 6, 7, 8]
01-04 23:09:15.156 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:16.418 4380-4380/com.example.richardcurteis.connect3 I/System.out: [3, 4, 6, 7, 8]
01-04 23:09:16.418 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:17.060 4380-4380/com.example.richardcurteis.connect3 I/System.out: [3, 6, 7, 8]
01-04 23:09:17.061 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:17.664 4380-4380/com.example.richardcurteis.connect3 I/System.out: [6, 7, 8]
01-04 23:09:17.672 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:18.378 4380-4380/com.example.richardcurteis.connect3 I/System.out: [7, 8]
01-04 23:09:18.378 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:18.905 4380-4380/com.example.richardcurteis.connect3 I/System.out: [8]
01-04 23:09:18.913 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:19.487 4380-4380/com.example.richardcurteis.connect3 I/System.out: []
01-04 23:09:19.489 4380-4380/com.example.richardcurteis.connect3 I/System.out: receiveClick: true
01-04 23:09:19.494 4380-4380/com.example.richardcurteis.connect3 D/AndroidRuntime: Shutting down VM
01-04 23:09:19.494 4380-4380/com.example.richardcurteis.connect3 E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.richardcurteis.connect3, PID: 4380
java.lang.IllegalStateException: Could not execute method for android:onClick
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:275)
at android.view.View.performClick(View.java:5198)
at android.view.View$PerformClick.run(View.java:21147)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:270)
at android.view.View.performClick(View.java:5198)
at android.view.View$PerformClick.run(View.java:21147)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: java.lang.IllegalArgumentException: n <= 0: 0
at java.util.Random.nextInt(Random.java:182)
at com.example.richardcurteis.connect3.MainActivity.randomButtonPick(MainActivity.java:60)
at com.example.richardcurteis.connect3.MainActivity.aiPlayerTurn(MainActivity.java:40)
at com.example.richardcurteis.connect3.MainActivity.receiveClick(MainActivity.java:31)
at java.lang.reflect.Method.invoke(Native Method)
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:270)
at android.view.View.performClick(View.java:5198)
at android.view.View$PerformClick.run(View.java:21147)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
True/False 问题已解决。
问题是 onCreate():
boolean noughtsTurn = true;
布尔值 noughtsTurn 也在页面顶部这样声明。
public class MainActivity extends AppCompatActivity {
boolean noughtsTurn;
ArrayList board;
Players player;
String aiPickedButton;
...
...
这意味着它总是正确的。
在 onCreate 中更改为以下，现在 true/false 开关工作正常。
noughtsTurn = true;