存储最高分数并显示它

Question

我目前正在学习android应用程序开发和在非常开始的阶段。我建立了这个游戏，现在我想设置存储和显示高分作为Textview在我的屏幕上。如果有人能帮我，我会很感激的。谢谢!

    package com.princeghimire.clickmeter;
    import android.content.DialogInterface;
    import android.media.MediaPlayer;
    import android.os.Bundle;
    import android.os.CountDownTimer;
    import android.support.v7.app.AlertDialog;
    import android.support.v7.app.AppCompatActivity;
    import android.view.View;
    import android.widget.Button;
    import android.widget.TextView;

    public class MainActivity extends AppCompatActivity{
    TextView tv_time, tv_clicks;
    Button b_start, b_click;
    CountDownTimer timer;
    int time = 10;
    int clicks = 0;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setLogo(R.drawable.iconnn);
        getSupportActionBar().setDisplayUseLogoEnabled(true);
        tv_time = (TextView) findViewById(R.id.tv_time);
        tv_clicks = (TextView) findViewById(R.id.tv_clicks);
        b_start = (Button) findViewById(R.id.b_start);
        b_click = (Button) findViewById(R.id.b_click);
        b_start.setEnabled(true);
        b_click.setEnabled(false);
        timer = new CountDownTimer(10000, 1000) {
            @Override
            public void onTick(long millisUntilFinished) {
                time--;
                tv_time.setText("Time: " + time);
            }
            @Override
            public void onFinish() {
                b_start.setEnabled(true);
                b_click.setEnabled(false);
                tv_time.setText("Time: 10" );
                AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
                builder.setTitle("Time's Up Buddy!");
                builder.setMessage("Your Score Is: " + clicks);
                builder.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int which) {
                        dialogInterface.dismiss();
                        // finish();
                    }
                });
                AlertDialog alertDialog = builder.create();
                alertDialog.show();
            }
        };
        b_click.setOnClickListener(new View.OnClickListener(){
            public void onClick (View v){
                clicks++;
                //  switchh.start();
                tv_clicks.setText("Your Clicks: " + clicks);
            }
        });
        b_start.setOnClickListener(new View.OnClickListener(){
            public void onClick (View v){
                timer.start();
                b_start.setEnabled(false);
                b_click.setEnabled(true);
                clicks = 0;
                time = 10;
                tv_time.setText("Time: " + time);
                tv_clicks.setText("Your Clicks: " + clicks);
            }
        });

    }
    public void onBackPressed()
    {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setMessage("Are you sure you want to EXIT?")
                .setCancelable(false)
                .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        finish();
                    }
                })
                .setNegativeButton("No", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        dialog.cancel();
                    }
                });
        AlertDialog alert = builder.create();
        alert.show();
    }
}

Answer 1

程序如下:

创建SharedPreferences和SharedPreferences的实例。编辑SharedPreferences sharedPref = .... AND SharedPreferences.Edit editor = .....
1. 在你的游戏结束的地方调用这个if (sharedPref.getInt("highscore",0) < clicks) { editor.putInt("highscore",clicks).apply() }

上面的代码将首先检查你保存在"hilicore"键中的最后一个分数，如果你当前的点击更高，它将替换它，如果这是第一场比赛，那么默认值将被取为0，所以第一场比赛的分数将被保存为hilicore，除非它再次为0。

我也制作过几乎相同的游戏，在Taplay和PlayStore上。

好运。

Answer 2

你可以使用SharedPreferences，如果你想跟踪用户游戏统计数据，我建议你使用Sqlite