嘗試從SharedPreference保存/加載數據時發生致命錯誤

Question

我有一個當前沒有任何保存或加載的應用程序。我需要它能夠保存多達20個不同的變量（字符串/長整數）。

下面是我的.java - 當你看到

debtAmount2 = (long) extras.getDouble("outstandingBalance"); 

它擁有（長），因爲它是被「放」作爲雙，但我不能做一個sharedpref雙，不得不讓它變長。

protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.debtlist); 

    //Name Displays 
    TextView debtName1 = (TextView) findViewById(R.id.dispName1); 
    TextView debtName2 = (TextView) findViewById(R.id.dispName2); 
    TextView debtName3 = (TextView) findViewById(R.id.dispName3); 
    TextView debtName4 = (TextView) findViewById(R.id.dispName4); 
    TextView debtName5 = (TextView) findViewById(R.id.dispName5); 

    //Amount Displays 
    TextView debtAmt1 = (TextView) findViewById(R.id.dispBal1); 
    TextView debtAmt2 = (TextView) findViewById(R.id.dispBal2); 
    TextView debtAmt3 = (TextView) findViewById(R.id.dispBal3); 
    TextView debtAmt4 = (TextView) findViewById(R.id.dispBal4); 
    TextView debtAmt5 = (TextView) findViewById(R.id.dispBal5); 

    //Order Displays 
    TextView dispDebtOrder1 = (TextView) findViewById(R.id.dispPayOrder1); 
    TextView dispDebtOrder2 = (TextView) findViewById(R.id.dispPayOrder2); 
    TextView dispDebtOrder3 = (TextView) findViewById(R.id.dispPayOrder3); 
    TextView dispDebtOrder4 = (TextView) findViewById(R.id.dispPayOrder4); 
    TextView dispDebtOrder5 = (TextView) findViewById(R.id.dispPayOrder5); 

    TextView terminate = (TextView) findViewById(R.id.terminate); 

    Integer trigger = 0; 
    Integer stopper = 1; 
    Bundle extras = getIntent().getExtras(); 

    if (debtNames1 == null && extras != null && trigger == 0) { 
     debtNames1 = extras.getString("nickname"); 
     debtName1.setText("" + debtNames1); 
     debtAmount1 = (long) extras.getDouble("outstandingBalance"); 
     String amount = String.valueOf(debtAmount1); 
     debtAmt1.setText("" + amount); 
     trigger++; 
    } 
    else if (debtNames1 != null) { 
     debtName1.setText("" + debtNames1); 
     String amount = String.valueOf(debtAmount1); 
     debtAmt1.setText("" + amount); 
     stopper++; 
    } 

    if (debtNames2 == null && extras != null && trigger == 0) { 
     debtNames2 = extras.getString("nickname"); 
     debtName2.setText(debtNames2); 
     debtAmount2 = (long) extras.getDouble("outstandingBalance"); 
     String amount = String.valueOf(debtAmount2); 
     debtAmt2.setText("" + amount); 
     trigger++; 
    } 
    else if (debtNames2 != null) { 
     debtName2.setText("" + debtNames2); 
     String amount = String.valueOf(debtAmount2); 
     debtAmt2.setText("" + amount);   
     stopper++; 
    } 

    if (debtNames3 == null && extras != null && trigger == 0) { 
     debtNames3 = extras.getString("nickname"); 
     debtName3.setText(debtNames3); 
     debtAmount3 = (long) extras.getDouble("outstandingBalance"); 
     String amount = String.valueOf(debtAmount3); 
     debtAmt3.setText("" + amount); 
     trigger++; 
    } 
    else if (debtNames3 != null) { 
     debtName3.setText("" + debtNames3); 
     String amount = String.valueOf(debtAmount3); 
     debtAmt3.setText("" + amount); 
     stopper++; 
    } 

    if (debtNames4 == null && extras != null && trigger == 0) { 
     debtNames4 = extras.getString("nickname"); 
     debtName4.setText(debtNames4); 
     debtAmount4 = (long) extras.getDouble("outstandingBalance"); 
     String amount = String.valueOf(debtAmount4); 
     debtAmt4.setText("" + amount); 
     trigger++; 
    } 
    else if (debtNames4 != null) { 
     debtName4.setText("" + debtNames4); 
     String amount = String.valueOf(debtAmount4); 
     debtAmt4.setText("" + amount); 
     stopper++; 
    } 

    if (debtNames5 == null && extras != null && trigger == 0) { 
     debtNames5 = extras.getString("nickname"); 
     debtName5.setText(debtNames5); 
     debtAmount5 = (long) extras.getDouble("outstandingBalance"); 
     String amount = String.valueOf(debtAmount5); 
     debtAmt5.setText("" + amount); 
     trigger++; 
    } 
    else if (debtNames5 != null) { 
     debtName5.setText("" + debtNames5); 
     String amount = String.valueOf(debtAmount5); 
     debtAmt5.setText("" + amount);   
     stopper++; 
    } 

    if (stopper == 6) { 
     terminate.setText("You have too many debts - get a job!"); 
     } 
    else { 
     terminate.setText(""); 
    } 

    SharedPreferences sharedPref= getSharedPreferences("savedata", 0); 
    SharedPreferences.Editor editor= sharedPref.edit(); 

    editor.putString("debtNames1", debtNames1); 
    editor.putLong("debtAmount1", debtAmount1); 
    editor.putLong("debtRate1", debtRate1); 
    editor.putInt("debtOrder1", debtOrder1); 
    editor.putInt("debtTerm1", debtTerm1); 

    editor.putString("debtNames2", debtNames2); 
    editor.putLong("debtAmount2", debtAmount2); 
    editor.putLong("debtRate2", debtRate2); 
    editor.putInt("debtOrder2", debtOrder2); 
    editor.putInt("debtTerm2", debtTerm2); 

    editor.putString("debtNames3", debtNames3); 
    editor.putLong("debtAmount3", debtAmount3); 
    editor.putLong("debtRate3", debtRate3); 
    editor.putInt("debtOrder3", debtOrder3); 
    editor.putInt("debtTerm3", debtTerm3); 

    editor.putString("debtNames4", debtNames4); 
    editor.putLong("debtAmount4", debtAmount4); 
    editor.putLong("debtRate4", debtRate4); 
    editor.putInt("debtOrder4", debtOrder4); 
    editor.putInt("debtTerm4", debtTerm4); 

    editor.putString("debtNames5", debtNames5); 
    editor.putLong("debtAmount5", debtAmount5); 
    editor.putLong("debtRate5", debtRate5); 
    editor.putInt("debtOrder5", debtOrder5); 
    editor.putInt("debtTerm5", debtTerm5); 

    editor.commit(); 
} 

我收到已解決的致命錯誤;但是，從這個活動轉移到我「從中獲得」額外收入的應用程序時，該應用程序不保留數據。它每次都會替換debtName1。我沒有使用菜單鏈接，而是使用< - 取而代之。

Answer 1

SharedPreferences.Editor editor= sharedPref.edit(); 

     editor.putString("debtNames1", debtNames1); 
     editor.putFloat("debtAmount1", amount1); 
     editor.putLong("debtRate1", debtRate1); 
     editor.putInt("debtTerm1", debtTerm1); 

     editor.putString("debtNames2", debtNames2); 
     editor.putFloat("debtAmount2", amount2); 
     editor.putLong("debtRate2", debtRate2); 
     editor.putInt("debtTerm2", debtTerm2); 

     editor.putString("debtNames3", debtNames3); 
     editor.putFloat("debtAmount3", amount3); 
     editor.putLong("debtRate3", debtRate3); 
     editor.putInt("debtTerm3", debtTerm3); 

     editor.putString("debtNames4", debtNames4); 
     editor.putFloat("debtAmount4", amount4); 
     editor.putLong("debtRate4", debtRate4); 
     editor.putInt("debtTerm4", debtTerm4); 

     editor.putString("debtNames5", debtNames5); 
     editor.putFloat("debtAmount5", amount5); 
     editor.putLong("debtRate5", debtRate5); 
     editor.putInt("debtTerm5", debtTerm5); 

     editor.putFloat("timeSaved1", timeSaved1); 
     editor.putFloat("timeSaved2", timeSaved2); 
     editor.putFloat("timeSaved3", timeSaved3); 
     editor.putFloat("timeSaved4", timeSaved4); 
     editor.putFloat("timeSaved5", timeSaved5); 

     editor.putFloat("totalDebt", totalDebt); 
     editor.commit();