一个非常简单的井字游戏应用程序，无法让它在系统中打印获胜者，我错过了哪里

Question

我是通过Udemy课程学习的，但是这段代码没有工作。

-唯一的问题是我没有获得任何输出。-其他一切正常。

Package com.example.android.connectthree;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
public class MainActivity extends AppCompatActivity {
    int activePlayer = 0;
    int[] gameState = {2, 2, 2, 2, 2, 2, 2, 2, 2};
    int[][] winningPositions = {{0, 1, 2}, {3, 4, 5}, {6, 7, 8}, {0, 3, 6}, {1, 4, 7}, {2, 5, 8}, {0, 4, 8}, {2, 4, 6}};
    public void dropIn(View view) {
        ImageView counter = (ImageView) view;
        int tappedCounter = Integer.parseInt(counter.getTag().toString());
        if (gameState[tappedCounter] == 2) {
            gameState[tappedCounter] = activePlayer;
            counter.setTranslationY(-1000f);
            if (activePlayer == 0) {
                counter.setImageResource(R.drawable.black);
                activePlayer = 1;
            } else {
                counter.setImageResource(R.drawable.red);
                activePlayer = 0;
            }
            counter.animate().translationYBy(1000f).setDuration(300);
            for (int[] winningPosition : winningPositions) {
                if (gameState[winningPosition[0]] == gameState[winningPosition[1]] &&
                        gameState[winningPosition[1]] == gameState[winningPosition[2]] &&
                        gameState[winningPosition[0]] != 2) {
                    System.out.println(gameState[winningPosition[0]]);
                }
                }
            }
        }

        @Override
        protected void onCreate (Bundle savedInstanceState){
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
        }
    }

Answer 1

您是否能够查看您尝试使用 System.out.println(( 打印的任何内容？如果是这样，它在哪几行打印？

似乎编写此程序的其他人完成它的方式略有不同，并以不同的方式输出结果，如以下代码片段所示：https://codegists.com/snippet/java/mainactivityjava_demhaxee_java