Question

我正在创建一个包含与我的App游戏相关的数据的文本文件。

我希望在游戏中以每秒显示得分。

如何确保我的int for seconds更新，从零开始

需要输出的示例：

Seconds      Score
0            3
1            9
2            16
3            20
.....etc

当前输出（秒始终为0）：

Seconds      Score
0            3
0            9
0            16
0            20
.....etc

当前代码：

int seconds=0;

                //creating header in the txt file Note: Blanked out as it is generating every second
                writeToFileEEGPower(order("Seconds")+order("highAlpha")+order("lowAlpha")+order("highBeta")+order("LowBeta")+
                        order("lowGamma")+order("midGamma")+order("Delta")+order("Theta")+ "\n");

                //creating the string to be written to file
                String line = order(seconds+"")+order(eegPower.highAlpha+"")+order(eegPower.lowAlpha+"")+order(eegPower.highBeta+"")+
                        order(eegPower.lowBeta+"")+order(eegPower.midGamma+"")+order(eegPower.delta+"")+order(eegPower.theta+"")+ "\n";

                //write the string to file
                writeToFileEEGPower(line);
                seconds++;

Answer 1

我认为你应该为此使用sqlite表。 Greendao 是管理这些表的好工具。您可以每秒将信息保存到表中。游戏结束后，您将获得游戏每一秒的完整分数列表。在您的代码示例中，＆＃34; second＆＃34;每次写入新行之前，变量都设置为0。我认为这就是问题。

Answer 2

使用TimerTask或Handler和postDelayed（）方法可以做到这一点。

Answer 3

您可以使用处理程序每秒更新一次文本文件：

public class MyActivity extends Activity {

    private android.os.Handler mHandler = new android.os.Handler();
    private Runnable textFileLogger;
    private int seconds = 0;

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

        //Create header for text file
        writeToFileEEGPower(order("Seconds") + order("highAlpha") + order("lowAlpha") + order("highBeta") + order("LowBeta") +
                order("lowGamma") + order("midGamma") + order("Delta") + order("Theta") + "\n");

        textFileLogger = new Runnable() {
            @Override
            public void run() {
                seconds++;
                String line = order(seconds + "") + order(eegPower.highAlpha + "") + order(eegPower.lowAlpha + "") + order(eegPower.highBeta + "") +
                        order(eegPower.lowBeta + "") + order(eegPower.midGamma + "") + order(eegPower.delta + "") + order(eegPower.theta + "") + "\n";
                //write the string to file
                writeToFileEEGPower(line);
                //Repeats the logging after 1 second
                mHandler.postDelayed(this, 1000);
            }
        };

        //Starts the logging after 1 second
        mHandler.postDelayed(textFileLogger, 1000);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        //To stop the logging:
        mHandler.removeCallbacks(textFileLogger);
    }
}

Android：永远更新int

3 个答案: