Question

save.java

public class Save extends Activity {

Intent previntent;
String string;

int levels = 2;
String blank = "Blank";
String target = "Target";
String blankval = "0";
String targetval = "0";
TextView tex1;
TextView tex2;


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

    previntent = getIntent();
    string = previntent.getStringExtra("string");
    tex1 = (TextView) findViewById(R.id.textView1);
    tex2 = (TextView) findViewById(R.id.textView2);
    save();
}

public void save()
{
    loadprev();
    if (string == "Blank") blankval = "1";
    if (string == "Target") targetval = "1";

    try {
        FileOutputStream fou = openFileOutput("data.gds", MODE_PRIVATE);

        try {
            fou.write(blankval.getBytes());
            fou.write(targetval.getBytes());
            fou.close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    tex1.setText(blankval);
    tex2.setText(targetval);
}

public void loadprev()
{
    String line;
    String[] temp = new String[levels];
    try {
        FileInputStream fin = openFileInput("data.gds");
        InputStreamReader inputStreamReader = new InputStreamReader(fin);
        BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
        int tempup = 0;
        try
        {
            while ((line = bufferedReader.readLine()) != null)
            {
                temp[tempup] = line;
                tempup++;
            }
        } catch (IOException e) {e.printStackTrace();}} catch (FileNotFoundException e) {e.printStackTrace();}

    if (temp[0] == "1") blankval = "1";
    if (temp[0] == "0") blankval = "0";
    if (temp[1] == "1") targetval = "1";
    if (temp[1] == "0") targetval = "0";
}

other.java （保存前的活动）

final Intent intent = new Intent (this, Save.class);
        new Handler().postDelayed(new Runnable() {

            @Override
            public void run() {
                String string = "Blank";
                intent.putExtra("string", string);
                startActivity(intent);
                finish();
            }
        }, 3000L);

在other.java中，String Blank意味着传入 save.java。{/ 1}} String string
然后save()拨打load()并开始阅读data.gds，其中会显示游戏已完成级别的上一次播放（级别为blank＆amp; target虽然没有上传数据，所以这没什么作用）并将其价值设定为之前的游戏。
save()然后检查任何新的已完成级别。这一个是空白的并更新了要保存的值。然后将它们按级别顺序保存为零或一个，每个换行只有一个数字。

data.gds （保存到文件后）

    // comments not in file
1   // blank
0   // target

我得到的输出是

0-0

我会在屏幕上显示tex1和tex2，并在我测试时跟踪值，我想要的输出是

1-0

代码有什么问题？我该如何解决？

另外，我不想使用SharedPreferences

比较字符串不按预期工作

0 个答案: