在我的 Android 应用程序中，我在共享首选项中获取用户的详细信息，并在另一个 Activity 中计算并显示结果...但结果显示错误 somehwere..
我附上了下面的代码。
主要 Activity :
String firstName = et1.getText().toString();
String middleName = et2.getText().toString();
String lastName = et3.getText().toString();
String callFirstName = et4.getText().toString();
String callMiddleName = et5.getText().toString();
String callLastName = et6.getText().toString();
String dates = et7.getText().toString();
String months = et8.getText().toString();
String years = et9.getText().toString();
else
{
SharedPreferences setting = this.getSharedPreferences(PREFS_NAME,0);
SharedPreferences.Editor editors = setting.edit();
editors.putString("log", "log");
editors.putString("fn", firstName);
editors.putString("mn",middleName);
editors.putString("ln",lastName);
editors.putString("cfn",callFirstName);
editors.putString("cmn", callMiddleName);
editors.putString("cln",callLastName);
editors.putString("dt",dates);
editors.putString("mt",months);
editors.putString("yrs",years);
editors.commit();
Intent i = new Intent(MainActivity.this, TabLayoutActivity.class);
tablayoutActivity:
if (setting.getString("log", "").toString().equals("log"))
{
firstN = String.valueOf(setting.getString("fn","not found"));
middleN= String.valueOf(setting.getString("mn","not found"));
lastN = String.valueOf(setting.getString("ln","not found"));
callMN = String.valueOf(setting.getString("cmn","not found"));
callLN= String.valueOf(setting.getString("cln","not found"));
callFN = String.valueOf(setting.getString("cfn","not found"));
daY = String.valueOf(setting.getString("dt","not found"));
montH= String.valueOf(setting.getString("mt","not found"));
yeaR = String.valueOf(setting.getString("yrs","not found"));
int yearat =0;
int monthat = 0;
int dayat = 0;
ch = 0;
ch1 = 0;
ch2 = 0;
ch3 = 0;
ch4 = 0;
pin = 0;
pin1 = 0;
pin2 = 0;
pin3 = 0;
pin4 = 0;
sum11 = 0;
sum19 = 0;
sum18 = 0;
sum20 = 0;
sum70 = 0;
sum80 = 0;
sum90 = 0;
GregorianCalendar gc = new GregorianCalendar();
yearat = gc.get(Calendar.YEAR);
yearstr = Integer.toString(yearat);
monthat = gc.get(Calendar.MONTH) + 1;
monthstr = Integer.toString(monthat);
dayat = gc.get(Calendar.DAY_OF_MONTH);
daystr = Integer.toString(dayat);
int day1 = Integer.parseInt(daY);
int month1 = Integer.parseInt(montH);
int year1 = Integer.parseInt(yeaR);
String s1 = String.valueOf(TabLayoutActivity.this.getAge(year1, month1, day1));
sum11 = getSum11((daY) + (montH) + (yeaR));
sum18 = getSum18((yearstr) + (daY + montH));
sum19 = getSum19((monthstr) + (sum18));
sum20 = getSum20((daystr) + sum19);
sum70 = getsum70(daY);
sum80 = getSum80(montH);
sum90 = getSum90(yeaR);
int val = 0;
long val1 = sum11;
//long val = sum16;
val = Integer.valueOf(s1);
long val2 = 36 - val1;
int val4 = 9;
long val5 = val2 + val4;
long val6 = val5 + val4;
long val7 = val6 + 80;
if (sum70 > sum80)
{
ch1 = (sum70 - sum80);
}
else
{
ch1 = (sum80 - sum70);
}
if (sum70 > sum90)
{
ch2 = (sum70 - sum90);
}
else
{
ch2 = (sum90 - sum70);
}
if (sum80 > sum90)
{
ch4 = (sum80 - sum90);
}
else
{
ch4 = (sum90 - sum80);
}
if (ch1 > ch2)
{
ch3 = ch1 - ch2;
}
else
{
ch3 = ch2 - ch1;
}
if (val <= val2)
{
ch = ch1;
}
else if ((val > val2) && (val <= val5))
{
ch = ch2;
}
else if ((val > val2) && (val> val5) && (val <= val6))
{
ch = ch3;
}
else if ((val > val2) && (val> val5) && (val > val6) && (val<= val7))
{
ch = ch4;
}
/*if (val <= val2)
{
pin = pin1;
}
else if ((val > val2) && (val <= val5))
{
pin = pin2;
}
else if ((val > val2) && (val> val5) && (val <= val6))
{
pin = pin3;
}
else if ((val > val2) && (val> val5) && (val > val6) && (val<= val7))
{
pin = pin4;
}*/
pyear = String.valueOf(sum18);
pmonth = String.valueOf(sum19);
pday = String.valueOf(sum20);
chn = String.valueOf(ch);
pinn = String.valueOf(pin);
yearstring = yearstr;
monthstring = monthstr;
daystring = daystr;
ms = getCalc(monthstring);
}
//calculating single value of year
private long getSum90(String text) {
// TODO Auto-generated method stub
long sum90 = 0;
char[] name90 = new char[text.length()];
name90 = text.toCharArray();
for(int i=0; i<text.length(); i++)
{
sum90 += value18( name90[i] );
}
//while (sum10>9)
while (sum90>9 )
{
sum90 = findDigitSum90(sum90);
}
return sum90;
}
private long findDigitSum90(long n) {
// TODO Auto-generated method stub
int sum90=0;
while (n != 0)
{
sum90 += n % 10;
n = n / 10;
}
return sum90;
}
//calculate single value month
private long getSum80(String text) {
// TODO Auto-generated method stub
long sum80 = 0;
char[] name80 = new char[text.length()];
name80 = text.toCharArray();
for(int i=0; i<text.length(); i++)
{
sum80 += value18( name80[i] );
}
//while (sum10>9)
while (sum80>9 )
{
sum80 = findDigitSum80(sum80);
}
return sum80;
}
日志猫:
01-27 09:05:08.421: I/Choreographer(5431): Skipped 78 frames! The application may be doing too much work on its main thread.
01-27 09:05:10.792: D/dalvikvm(5431): GC_CONCURRENT freed 112K, 8% free 2688K/2920K, paused 9ms+432ms, total 1177ms
01-27 09:05:11.771: D/AndroidRuntime(5431): Shutting down VM
01-27 09:05:11.771: W/dalvikvm(5431): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
01-27 09:05:12.371: E/AndroidRuntime(5431): FATAL EXCEPTION: main
01-27 09:05:12.371: E/AndroidRuntime(5431): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.numero/com.example.numero.TabLayoutActivity}: java.lang.NumberFormatException: Invalid int: "not found"
01-27 09:05:12.371: E/AndroidRuntime(5431): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
01-27 09:05:12.371: E/AndroidRuntime(5431): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
01-27 09:05:12.371: E/AndroidRuntime(5431): at android.app.ActivityThread.access$600(ActivityThread.java:141)
01-27 09:05:12.371: E/AndroidRuntime(5431): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
01-27 09:05:12.371: E/AndroidRuntime(5431): at android.os.Handler.dispatchMessage(Handler.java:99)
01-27 09:05:12.371: E/AndroidRuntime(5431): at android.os.Looper.loop(Looper.java:137)
01-27 09:05:12.371: E/AndroidRuntime(5431): at android.app.ActivityThread.main(ActivityThread.java:5041)
01-27 09:05:12.371: E/AndroidRuntime(5431): at java.lang.reflect.Method.invokeNative(Native Method)
01-27 09:05:12.371: E/AndroidRuntime(5431): at java.lang.reflect.Method.invoke(Method.java:511)
01-27 09:05:12.371: E/AndroidRuntime(5431): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
01-27 09:05:12.371: E/AndroidRuntime(5431): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
01-27 09:05:12.371: E/AndroidRuntime(5431): at dalvik.system.NativeStart.main(Native Method)
01-27 09:05:12.371: E/AndroidRuntime(5431): Caused by: java.lang.NumberFormatException: Invalid int: "not found"
01-27 09:05:12.371: E/AndroidRuntime(5431): at java.lang.Integer.invalidInt(Integer.java:138)
01-27 09:05:12.371: E/AndroidRuntime(5431): at java.lang.Integer.parse(Integer.java:375)
01-27 09:05:12.371: E/AndroidRuntime(5431): at java.lang.Integer.parseInt(Integer.java:366)
01-27 09:05:12.371: E/AndroidRuntime(5431): at java.lang.Integer.parseInt(Integer.java:332)
01-27 09:05:12.371: E/AndroidRuntime(5431): at com.example.numero.TabLayoutActivity.onCreate(TabLayoutActivity.java:83)
01-27 09:05:12.371: E/AndroidRuntime(5431): at android.app.Activity.performCreate(Activity.java:5104)
01-27 09:05:12.371: E/AndroidRuntime(5431): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
01-27 09:05:12.371: E/AndroidRuntime(5431): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
01-27 09:05:12.371: E/AndroidRuntime(5431): ... 11 more
01-27 09:10:13.672: I/Process(5431): Sending signal. PID: 5431 SIG: 9
最佳答案
问题是这样的:
daY = String.valueOf(setting.getString("dt","not found"));
然后:
int day1 = Integer.parseInt(daY);
您无法将“未找到”转换为整数。
编辑:
在进一步使用该函数之前，您可以使用此函数来确定该值是否为字符串。或者使用该点提供默认值。
关于java - Android Sharedpreference 出错了，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/21378527/