问题描述

BillTotal有问题，但是我又找不到，求助

开发-BillTotal有问题，但是我又找不到，求助-淘宝 有问题向你求助">
public class T_Calculator extends Activity{
private static final String BILL_TOTAL = ""BILL_TOTAL"";
private static final String CUSTOM_PERCENT = ""CUSTOM_PERCENT"";

private double currentBillTotal;private int currentCustomPercent;private EditText Tip10_et;private EditText Tip15_et;private EditText Tip20_et;private EditText Total10_et;private EditText Total15_et;private EditText Total20_et;private EditText Bt_et;private TextView CustomTip_tv;private EditText TipCustom_et;private EditText TotalCustom_et;public void onCreate(Bundle savedInstanceState){    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_t__calculator);    //    if (savedInstanceState == null)    {        currentBillTotal = 0.0;        currentCustomPercent = 18;    }    else {        currentBillTotal = savedInstanceState.getDouble(BILL_TOTAL);        currentCustomPercent = savedInstanceState.getInt(CUSTOM_PERCENT);    }    Tip10_et = (EditText) findViewById(R.id.Tip10_et);    Total10_et = (EditText)findViewById(R.id.Total10_et);    Tip15_et = (EditText)findViewById(R.id.Tip15_et);    Total15_et = (EditText)findViewById(R.id.Total15_et);    Tip20_et = (EditText)findViewById(R.id.Tip20_et);    Total20_et = (EditText)findViewById(R.id.Total20_et);    CustomTip_tv = (TextView)findViewById(R.id.CustomTip_tv);    TipCustom_et = (EditText) findViewById(R.id.TipCustom_et);    TotalCustom_et = (EditText) findViewById(R.id.TotalCustom_et);    Bt_et = (EditText) findViewById(R.id.Bt_et);    Bt_et.addTextChangedListener(Bt_etWatcher);    SeekBar Custom_Sb = (SeekBar) findViewById(R.id.Custom_Sb);    Custom_Sb.setOnSeekBarChangeListener(Custom_SbListener);}public void updateStandard(){    Double tenPercentTip = currentBillTotal * .1;    Double tenPercentTotal = currentBillTotal + tenPercentTip;    //    Tip10_et.setText(String.format(""%.02f"" tenPercentTip));    Total10_et.setText(String.format(""%.02f"" tenPercentTotal));    //    Double fifteenPercentTip = currentBillTotal * .15;    Double fifteenPercentTotal = currentBillTotal + fifteenPercentTip;    Tip15_et.setText(String.format(""%.02f"" fifteenPercentTip));    Total15_et.setText(String.format(""%.02f"" fifteenPercentTotal));    //    Double twentyPercentTip = currentBillTotal * .20;    Double twentyPercentTotal = currentBillTotal + twentyPercentTip;    Tip20_et.setText(String.format(""%.02f"" twentyPercentTip));    Total20_et.setText(String.format(""%.02f"" twentyPercentTotal));}public void updateCustom(){    CustomTip_tv.setText(currentCustomPercent + ""%"");    Double customTipAmount = currentBillTotal * currentCustomPercent * .01;    Double customTotalAmount = currentBillTotal + customTipAmount;    TipCustom_et.setText(String.format(""%.02f"" customTipAmount));    TotalCustom_et.setText(String.format(""%.02f"" customTotalAmount));}public void onSaveInstanceState(Bundle outState){    super.onSaveInstanceState(outState);    outState.putDouble(BILL_TOTAL  currentBillTotal);    outState.putInt(CUSTOM_PERCENT  currentCustomPercent);}private SeekBar.OnSeekBarChangeListener Custom_SbListener =        new SeekBar.OnSeekBarChangeListener() {            @Override            public void onProgressChanged(SeekBar seekBar int progress boolean fromUser) {                currentCustomPercent = seekBar.getProgress();                updateCustom();            }            @Override            public void onStartTrackingTouch(SeekBar seekBar) {            }            @Override            public void onStopTrackingTouch(SeekBar seekBar) {            }        };private TextWatcher Bt_etWatcher = new TextWatcher() {    @Override    public void beforeTextChanged(CharSequence s int start int count int after) {        try {            currentBillTotal = Double.parseDouble(s.toString());        }        catch (NumberFormatException e){            currentBillTotal = 0.0;        }        updateCustom();        updateStandard();    }    @Override    public void onTextChanged(CharSequence s int start int before int count) {    }    @Override    public void afterTextChanged(Editable s) {    }};

}

解决方案

apue.h包头找不到的问题