android - 在 android 中存储 EditText 值

Question

我开发了一个 android 应用程序...其中...用户姓名姓氏出生日期、手机号码、电子邮件 ID 一切都被收集...我想要存储这些详细信息......当用户想要这些数据时......有一个按钮称为召回......当用户按下召回按钮时..可以显示存储此数据的位置..他可以选择他的名字来自这些名字......任何人都知道如何保存这些数据......我正在提供代码......这里......任何人......帮助......代码正在运行......没问题在里面……

public void onDateChanged(DatePicker  arg0, int arg1, int arg2, int arg3) 
        {

         String date=Integer.toString(arg3);
         String month=Integer.toString(arg2);
         String year=Integer.toString(arg1);

         tv1.setText(date+ month+1 +year);
         tv2.setText(month+1 + year);
         tv3.setText(year);
         tv4.setText(month+1);
         tv5.setText(date);
         tv6.setText(date + year);

        }   

    });}

    public void sum(View v)
    {
        long sum1=0;
        long sum2=0;
        long sum3=0;
        long sum4=0;
        long sum5=0;
        long sum6=0;
        long sum7=0;
        long sum8=0;
        long sum=0;
        long sum11=0;
        long sum12=0;
        long sum13=0;
        long sum14=0;

        EditText et1 = (EditText) findViewById (R.id.editText1);
        EditText et2 = (EditText) findViewById (R.id.editText2);
        EditText et3 = (EditText) findViewById (R.id.editText3);
        EditText et4 = (EditText) findViewById (R.id.editText4);

        final DatePicker date = (DatePicker) findViewById (R.id.datePicker1);
        final TextView tv1 = (TextView) findViewById (R.id.textView88);
        final TextView tv2 = (TextView) findViewById (R.id.textView89);
        final TextView tv3 = (TextView) findViewById (R.id.textView90);
        final TextView tv4 = (TextView) findViewById (R.id.textView91);
        final TextView tv5 = (TextView) findViewById (R.id.textView92);
        final TextView tv6 = (TextView) findViewById (R.id.textView93);
        final TextView tv7 = (TextView) findViewById (R.id.textView94);

        sum1=getSum(et1.getText().toString() + et2.getText().toString() + et3.getText().toString() + et4.getText().toString());
        sum2=getSum1(et1.getText().toString() + et2.getText().toString() + et3.getText().toString() + et4.getText().toString());
        sum3=getSum2(tv1.getText().toString());
        /*sum4=getSum3(tv2.getText().toString());*/
        sum5=getSum4(tv3.getText().toString());
        sum6=getSum5(tv4.getText().toString());
        sum8=getSum7(tv5.getText().toString());

        String yearf = tv3.getText().toString();
        int yearb = Integer.valueOf(yearf);

        int val = 2013 - yearb;
        long val1 = sum3;
        /*int val2 = Integer.valueOf(val1);*/
        long val3 = 36 - val1;
        int val4 = 9;
        long val5 = val3 + val4;
        long val6 = val5 + val4;
        long val7 = val6 + 50;

        sum = getSum3(tv2.getText().toString()) + getSum8(tv6.getText().toString());

        if (val <= val3)
        {
            sum4=getSum3(tv2.getText().toString());
        }

        else if ((val <= val5) && (val > val3))
        {
            sum4=getSum8(tv6.getText().toString());
        }

        else if ((val<=val6) && (val > val5) && (val > val3))
        {
            /*sum = getSum3(tv2.getText().toString()) + getSum8(tv6.getText().toString());*/
             sum4=getSum9(Integer.toString((int) sum));
        }
        else 
        {
             sum4=getSum9(Integer.toString((int) sum));
        }

        if (val <= val3)
        {

        if (sum5>sum6)
        {
            sum7 = (sum5 - sum6);
        }
        else 
        {
            sum7 = (sum6 - sum5);
        }

        }

        else if ((val <= val5) && (val > val3))
        {
            if(sum5>sum8)
            {
                sum7=(sum5 - sum8);
            }
            else
            {
                sum7 = (sum8 - sum5);
            }
        }


        else if ((val<=val6) && (val > val5) && (val > val3))
        {
            sum11 = (sum5 - sum8);
            sum12 = (sum8 - sum5);
            sum13 = (sum6 - sum5);
            sum14 = (sum5 - sum6);

            if ((sum11 > sum12) && (sum13 > sum14))
            {
                if (sum11 > sum13)
                {
                    sum7 = sum11 - sum13;
                }
                else 
                {
                    sum7 = sum13 - sum11;
                }
            }
            else if ((sum12 > sum11) && (sum13 > sum14))
            {
                if (sum12 > sum13)
                {
                    sum7 = sum12 - sum13;
                }
                else 
                {
                    sum7 = sum13 - sum12;
                }
            }
            else if ((sum11 > sum12) && (sum14 > sum13))
            {
                if (sum11 > sum14)
                {
                    sum7 = sum11 - sum14;
                }
                else 
                {
                    sum7 = sum14 - sum11;
                }
            }
            else if ((sum12 > sum11) && (sum14 > sum13))
            {
                if (sum12 > sum14)
                {
                    sum7 = sum12 - sum14;
                }
                else 
                {
                    sum7 = sum14 - sum12;
                }
            }

        }
            else 
            {
                sum11 = (sum5 - sum8);
                sum12 = (sum8 - sum5);
                sum13 = (sum6 - sum5);
                sum14 = (sum5 - sum6);

                if ((sum11 > sum12) && (sum13 > sum14))
                {
                    if (sum11 > sum13)
                    {
                        sum7 = sum11 - sum13;
                    }
                    else 
                    {
                        sum7 = sum13 - sum11;
                    }
                }
                else if ((sum12 > sum11) && (sum13 > sum14))
                {
                    if (sum12 > sum13)
                    {
                        sum7 = sum12 - sum13;
                    }
                    else 
                    {
                        sum7 = sum13 - sum12;
                    }
                }
                else if ((sum11 > sum12) && (sum14 > sum13))
                {
                    if (sum11 > sum14)
                    {
                        sum7 = sum11 - sum14;
                    }
                    else 
                    {
                        sum7 = sum14 - sum11;
                    }
                }
                else if ((sum12 > sum11) && (sum14 > sum13))
                {
                    if (sum12 > sum14)
                    {
                        sum7 = sum12 - sum14;
                    }
                    else 
                    {
                        sum7 = sum14 - sum12;
                    }
                }

            }


        String edtxt1 = et1.getText().toString();
        String edtxt4 = et4.getText().toString();

        if(edtxt1.equals(""))
        {
            Toast.makeText(getApplicationContext(),"First Name should not be left blank, Please enter your First Name ", Toast.LENGTH_LONG).show();
        }

        else if(edtxt4.equals(""))
        {
            Toast.makeText(getApplicationContext(),"Last Name should not be left blank, Please enter your Last Name ", Toast.LENGTH_LONG).show();
        }

        else{

        Intent i = new Intent(this, result.class);
        i.putExtra("name", sum1 + "");
        i.putExtra("name1", sum2 + "");
        i.putExtra("name2", sum3 + "");
        i.putExtra("name3", sum4 + "");
        i.putExtra("name4", sum7 + "");

        startActivity(i);

        }

Answer 1

你应该看看Storage Options .但是如果这不是很多用户可以使用 SharedPreferences .该链接有一个很好的开始使用它们的例子。

如果您要让多个用户拥有那么多不同的数据，那么您可能需要考虑使用 SQLite DB .如果您不习惯使用 SQLite Db，那么 this tutorial可能是帮助您入门的好方法。

您也可以使用我提供的链接中的其他存储选项，但数据库可能是为不同用户存储大量不同信息的最佳选择。