我如何從 EditText 中獲取日期，然后將其存儲在 Android 的數據庫中

Question

我正在為用戶輸入用戶輸入他的出生日期使用 edittext。 edittext 的輸入類型是 Date，然后我將該日期傳遞給一個變量。 該日期未傳遞給該變量並給出一些錯誤。

我正在使用的代碼如下

Edit dob=(EditText)findViewById(R.id.dob);
    SimpleDateFormat sdf = new SimpleDateFormat( "yyyy/MM/dd" );
    String dob_var=sdf.format(dob.getText());
    //dob_var=dob.getText().toString();
    System.out.println(dob_var);

之后我想在數據庫中傳遞該日期，那么將該日期存儲在數據庫中需要什么類型。 我的日志是：

    04-05 16:54:22.060: D/AndroidRuntime(3104): Shutting down VM
04-05 16:54:22.146: E/AndroidRuntime(3104): FATAL EXCEPTION: main
04-05 16:54:22.146: E/AndroidRuntime(3104): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.foursquaregame.in/com.foursquaregame.in.Astro_talk}: java.lang.IllegalArgumentException
04-05 16:54:22.146: E/AndroidRuntime(3104):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
04-05 16:54:22.146: E/AndroidRuntime(3104):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
04-05 16:54:22.146: E/AndroidRuntime(3104):     at android.app.ActivityThread.access$2300(ActivityThread.java:125)
04-05 16:54:22.146: E/AndroidRuntime(3104):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
04-05 16:54:22.146: E/AndroidRuntime(3104):     at android.os.Handler.dispatchMessage(Handler.java:99)
04-05 16:54:22.146: E/AndroidRuntime(3104):     at android.os.Looper.loop(Looper.java:123)
04-05 16:54:22.146: E/AndroidRuntime(3104):     at android.app.ActivityThread.main(ActivityThread.java:4627)
04-05 16:54:22.146: E/AndroidRuntime(3104):     at java.lang.reflect.Method.invokeNative(Native Method)
04-05 16:54:22.146: E/AndroidRuntime(3104):     at java.lang.reflect.Method.invoke(Method.java:521)
04-05 16:54:22.146: E/AndroidRuntime(3104):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
04-05 16:54:22.146: E/AndroidRuntime(3104):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
04-05 16:54:22.146: E/AndroidRuntime(3104):     at dalvik.system.NativeStart.main(Native Method)
04-05 16:54:22.146: E/AndroidRuntime(3104): Caused by: java.lang.IllegalArgumentException
04-05 16:54:22.146: E/AndroidRuntime(3104):     at java.text.DateFormat.format(DateFormat.java:373)
04-05 16:54:22.146: E/AndroidRuntime(3104):     at java.text.Format.format(Format.java:133)
04-05 16:54:22.146: E/AndroidRuntime(3104):     at com.foursquaregame.in.Astro_talk.onCreate(Astro_talk.java:32)
04-05 16:54:22.146: E/AndroidRuntime(3104):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
04-05 16:54:22.146: E/AndroidRuntime(3104):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
04-05 16:54:22.146: E/AndroidRuntime(3104):     ... 11 more

Answer 1

終於明白了，

DateFormat formatter = new SimpleDateFormat("dd/MM/yyyy"); // Make sure user insert date into edittext in this format.

Date dateObject;

try{
String dob_var=(tx.getText().toString());

dateObject = formatter.parse(dob_var);

date = new SimpleDateFormat("dd/MM/yyyy").format(dateObject);
time = new SimpleDateFormat("h:mmaa").format(dateObject);
}

catch (java.text.ParseException e) 
    {
    // TODO Auto-generated catch block
        e.printStackTrace();
        Log.i("E11111111111", e.toString());
    }

    Toast.makeText(getBaseContext(), date + time, Toast.LENGTH_LONG).show();

希望對你有幫助...

謝謝...

Answer 2

首先，您需要將 edittext 的字符串轉換為日期：

SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");
Date dob_var = sdf.parse(dob.getText());

現在將dob_var轉換為 sqlite 標准日期字符串：

DateFormat dateFormatISO8601 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String strDob = dateFormatISO8601.format(dob_var);

/* save strDob into database */

Answer 3

嘗試

 String dob_var=sdf.format(dob.getText().toString().trim());