方法未解决的Java DatePickerDialog

我试图让日期选择器对话框工作，但我有一些方法的麻烦。方法未解决的Java DatePickerDialog

在这种方法中它是“.SET”和“.toMillis'，这都想出‘不能reolve方法：

@Override 
protected Dialog onCreateDialog(int id) { 
    switch (id) { 
     case DATE_DIALOG_ID: 
      final TextView dob = (TextView) findViewById(R.id.TextView_DOB_Info); 
      DatePickerDialog dateDialog = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() { 
       public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { 
        Time dateOfBirth = new Time(); 
        dateOfBirth.set(dayOfMonth, monthOfYear, year); 
        long dtDob = dateOfBirth.toMillis(true); 
        dob.setText(DateFormat.format("MMMM dd, yyyy", dtDob)); 
        Editor editor = mGameSettings.edit(); 
        editor.putLong(GAME_PREFERENCES_DOB, dtDob); 
        editor.commit(); 
       } 
      }, 0, 0, 0); 
      return dateDialog;

而且在这个方法中，它是’再次.SET”和我'日月'，'。月'和'。年'也无法解析符号。此外，“时间”是要求一个构造函数，但我不知道是哪一个：

@Override 
protected void onPrepareDialog(int id, Dialog dialog) { 
    super.onPrepareDialog(id, dialog); 
    switch (id) { 
     case DATE_DIALOG_ID: 
      // Handle any DatePickerDialog initialization here 
      DatePickerDialog dateDialog = (DatePickerDialog) dialog; 
      int iDay, iMonth, iYear; 
      // Check for date of birth preference 
      if (mGameSettings.contains(GAME_PREFERENCES_DOB)) { 
       // Retrieve Birth date setting from preferences 
       long msBirthDate = mGameSettings.getLong(GAME_PREFERENCES_DOB, 0); 
       Time dateOfBirth = new Time(); 
       dateOfBirth.set(msBirthDate); 
       iDay = dateOfBirth.monthDay; 
       iMonth = dateOfBirth.month; 
       iYear = dateOfBirth.year; 
      } else { 
       Calendar cal = Calendar.getInstance(); 
       // Today's date fields 
       iDay = cal.get(Calendar.DAY_OF_MONTH); 
       iMonth = cal.get(Calendar.MONTH); 
       iYear = cal.get(Calendar.YEAR); 
      } 
      // Set the date in the DatePicker to the date of birth OR to the 
      // current date 
      dateDialog.updateDate(iYear, iMonth, iDay); 
      return; 
     case PASSWORD_DIALOG_ID: 
      // Handle any Password Dialog initialization here 
      // Since we don't want to show old password dialogs, just set new 
      // ones, we need not do anything here 
      // Because we are not "reusing" password dialogs once they have 
      // finished, but removing them from 
      // the Activity Dialog pool explicitly with removeDialog() and 
      // recreating them as needed. 
      return; 
    }

该类完整的代码，这样你就可以在上下文中看到它，低于：

package cct.mad.lab; 

import android.app.Activity; 
import android.app.AlertDialog; 
import android.app.DatePickerDialog; 
import android.app.Dialog; 
import android.content.Context; 
import android.content.DialogInterface; 
import android.content.SharedPreferences; 
import android.content.SharedPreferences.Editor; 
import android.os.Bundle; 
import android.text.Editable; 
import android.text.TextWatcher; 
import android.text.format.DateFormat; 
import android.util.Log; 
import android.view.KeyEvent; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.AdapterView; 
import android.widget.ArrayAdapter; 
import android.widget.Button; 
import android.widget.DatePicker; 
import android.widget.EditText; 
import android.widget.Spinner; 
import android.widget.TextView; 
import android.widget.Toast; 

import java.sql.Time; 
import java.util.Calendar; 

public class SettingsActivity extends Activity { 

private String DEBUG_TAG; 
public final static String GAME_PREFERENCES = "GamePrefs"; 
public static final String GAME_PREFERENCES_NICKNAME = "Nickname"; // String 
public final static String GAME_PREFERENCES_EMAIL = "Email"; // String 
public final static String GAME_PREFERENCES_PASSWORD = "Password"; //String 
public final static String GAME_PREFERENCES_DOB = "DOB"; // Long 
public final static String GAME_PREFERENCES_GENDER = "Gender"; // Int 

SharedPreferences mGameSettings; 
static final int DATE_DIALOG_ID = 0; 
static final int PASSWORD_DIALOG_ID = 1; 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.settings); 
    // Retrieve the shared preferences 
    mGameSettings = getSharedPreferences((String) GAME_PREFERENCES, Context.MODE_PRIVATE); 
    // Initialize the nickname entry 
    initNicknameEntry(); 
    // Initialize the email entry 
    initEmailEntry(); 
    // Initialize the Password chooser 
    initPasswordChooser(); 
    // Initialize the Date picker 
    initDatePicker(); 
    // Initialize the spinner 
    initGenderSpinner(); 






} 

@Override 
protected void onDestroy() { 
    Log.d(DEBUG_TAG, "SHARED PREFERENCES"); 
    Log.d(DEBUG_TAG, "Nickname is: " + mGameSettings.getString((String) GAME_PREFERENCES_NICKNAME, "Not set")); 
    Log.d(DEBUG_TAG, "Email is: " + mGameSettings.getString((String) GAME_PREFERENCES_EMAIL, "Not set")); 
    Log.d(DEBUG_TAG, "Gender (M=1, F=2, U=0) is: " + mGameSettings.getInt((String) GAME_PREFERENCES_GENDER, 0)); 
    // We are not saving the password yet 
    Log.d(DEBUG_TAG, "Password is: " + mGameSettings.getString((String) GAME_PREFERENCES_PASSWORD, "Not set")); 
    // We are not saving the date of birth yet 
    Log.d(DEBUG_TAG, "DOB is: " 
      + DateFormat.format("MMMM dd, yyyy", mGameSettings.getLong((String) GAME_PREFERENCES_DOB, 0))); 
    super.onDestroy(); 
} 

private void initNicknameEntry() { 
    // Save Nickname 
    final EditText nicknameText = (EditText) findViewById(R.id.EditText_Nickname); 
    if (mGameSettings.contains((String) GAME_PREFERENCES_NICKNAME)) { 
     nicknameText.setText(mGameSettings.getString((String) GAME_PREFERENCES_NICKNAME, "")); 
    } 
    nicknameText.setOnKeyListener(new View.OnKeyListener() { 
     public boolean onKey(View v, int keyCode, KeyEvent event) { 
      if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) { 
       String strNickname = nicknameText.getText().toString(); 
       Editor editor = mGameSettings.edit(); 
       editor.putString((String) GAME_PREFERENCES_NICKNAME, strNickname); 
       editor.commit(); 
       return true; 
      } 
      return false; 
     } 
    }); 
} 

/** 
* Initialize the email entry 
*/ 
private void initEmailEntry() { 
    // Save Email 
    final EditText emailText = (EditText) findViewById(R.id.EditText_Email); 
    if (mGameSettings.contains((String) GAME_PREFERENCES_EMAIL)) { 
     emailText.setText(mGameSettings.getString((String) GAME_PREFERENCES_EMAIL, "")); 
    } 
    emailText.setOnKeyListener(new View.OnKeyListener() { 
     public boolean onKey(View v, int keyCode, KeyEvent event) { 
      if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) { 
       Editor editor = mGameSettings.edit(); 
       editor.putString((String) GAME_PREFERENCES_EMAIL, emailText.getText().toString()); 
       editor.commit(); 
       return true; 
      } 
      return false; 
     } 
    }); 
} 

/** 
* Initialize the Password chooser 
*/ 
private void initPasswordChooser() { 
    // Set password info 
    TextView passwordInfo = (TextView) findViewById(R.id.TextView_Password_Info); 
    if (mGameSettings.contains((String) GAME_PREFERENCES_PASSWORD)) { 
     passwordInfo.setText(R.string.settings_pwd_set); 
    } else { 
     passwordInfo.setText(R.string.settings_pwd_not_set); 
    } 
    // Handle password setting dialog 
    Button setPassword = (Button) findViewById(R.id.Button_Password); 
    setPassword.setOnClickListener(new View.OnClickListener() { 
     public void onClick(View v) { 
      Toast.makeText(SettingsActivity.this, "TODO: Launch Password Dialog", Toast.LENGTH_LONG).show(); 
     } 
    }); 
} 

/** 
* Initialize the Date picker 
*/ 
private void initDatePicker() { 
    // Set password info 
    TextView dobInfo = (TextView) findViewById(R.id.TextView_DOB_Info); 
    if (mGameSettings.contains((String) GAME_PREFERENCES_DOB)) { 
     dobInfo.setText(DateFormat.format("MMMM dd, yyyy", mGameSettings.getLong((String) GAME_PREFERENCES_DOB, 0))); 
    } else { 
     dobInfo.setText(R.string.settings_dob_not_set); 
    } 
    // Handle date picking dialog 
    Button pickDate = (Button) findViewById(R.id.Button_DOB); 
    pickDate.setOnClickListener(new View.OnClickListener() { 
     public void onClick(View v) { 
      Toast.makeText(SettingsActivity.this, "TODO: Launch DatePickerDialog", Toast.LENGTH_LONG).show(); 
     } 
    }); 
} 

/** 
* Initialize the spinner 
*/ 
private void initGenderSpinner() { 
    // Populate Spinner control with genders 
    final Spinner spinner = (Spinner) findViewById(R.id.Spinner_Gender); 
    ArrayAdapter<?> adapter = ArrayAdapter.createFromResource(this, R.array.genders, 
      android.R.layout.simple_spinner_item); 
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); 
    spinner.setAdapter(adapter); 
    if (mGameSettings.contains((String) GAME_PREFERENCES_GENDER)) { 
     spinner.setSelection(mGameSettings.getInt((String) GAME_PREFERENCES_GENDER, 0)); 
    } 
    // Handle spinner selections 
    spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { 
     public void onItemSelected(AdapterView<?> parent, View itemSelected, int selectedItemPosition, 
            long selectedId) { 
      Editor editor = mGameSettings.edit(); 
      editor.putInt((String) GAME_PREFERENCES_GENDER, selectedItemPosition); 
      editor.commit(); 
     } 

     public void onNothingSelected(AdapterView<?> parent) { 
     } 
    }); 
} 

@Override 
protected Dialog onCreateDialog(int id) { 
    switch (id) { 
     case DATE_DIALOG_ID: 
      final TextView dob = (TextView) findViewById(R.id.TextView_DOB_Info); 
      DatePickerDialog dateDialog = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() { 
       public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { 
        Time dateOfBirth = new Time(); 
        dateOfBirth.set(dayOfMonth, monthOfYear, year); 
        long dtDob = dateOfBirth.toMillis(true); 
        dob.setText(DateFormat.format("MMMM dd, yyyy", dtDob)); 
        Editor editor = mGameSettings.edit(); 
        editor.putLong(GAME_PREFERENCES_DOB, dtDob); 
        editor.commit(); 
       } 
      }, 0, 0, 0); 
      return dateDialog; 
     case PASSWORD_DIALOG_ID: 
      LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
      final View layout = inflater.inflate(R.layout.password_dialog, (ViewGroup) findViewById(R.id.root)); 
      final EditText p1 = (EditText) layout.findViewById(R.id.EditText_Pwd1); 
      final EditText p2 = (EditText) layout.findViewById(R.id.EditText_Pwd2); 
      final TextView error = (TextView) layout.findViewById(R.id.TextView_PwdProblem); 
      p2.addTextChangedListener(new TextWatcher() { 
       @Override 
       public void afterTextChanged(Editable s) { 
        String strPass1 = p1.getText().toString(); 
        String strPass2 = p2.getText().toString(); 
        if (strPass1.equals(strPass2)) { 
         error.setText(R.string.settings_pwd_equal); 
        } else { 
         error.setText(R.string.settings_pwd_not_equal); 
        } 
       } 

       // ... other required overrides do nothing 
       @Override 
       public void beforeTextChanged(CharSequence s, int start, int count, int after) { 
       } 

       @Override 
       public void onTextChanged(CharSequence s, int start, int before, int count) { 
       } 
      }); 
      AlertDialog.Builder builder = new AlertDialog.Builder(this); 
      builder.setView(layout); 
      // Now configure the AlertDialog 
      builder.setTitle(R.string.settings_button_pwd); 
      builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() { 
       public void onClick(DialogInterface dialog, int whichButton) { 
        // We forcefully dismiss and remove the Dialog, so it 
        // cannot be used again (no cached info) 
        SettingsActivity.this.removeDialog(PASSWORD_DIALOG_ID); 
       } 
      }); 
      builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { 
       public void onClick(DialogInterface dialog, int which) { 
        TextView passwordInfo = (TextView) findViewById(R.id.TextView_Password_Info); 
        String strPassword1 = p1.getText().toString(); 
        String strPassword2 = p2.getText().toString(); 
        if (strPassword1.equals(strPassword2)) { 
         Editor editor = mGameSettings.edit(); 
         editor.putString(GAME_PREFERENCES_PASSWORD, strPassword1); 
         editor.commit(); 
         passwordInfo.setText(R.string.settings_pwd_set); 
        } else { 
         Log.d(DEBUG_TAG, "Passwords do not match. Not saving. Keeping old password (if set)."); 
        } 
        // We forcefully dismiss and remove the Dialog, so it 
        // cannot be used again 
        SettingsActivity.this.removeDialog(PASSWORD_DIALOG_ID); 
       } 
      }); 
      // Create the AlertDialog and return it 
      AlertDialog passwordDialog = builder.create(); 
      return passwordDialog; 
    } 
    return null; 
} 

@Override 
protected void onPrepareDialog(int id, Dialog dialog) { 
    super.onPrepareDialog(id, dialog); 
    switch (id) { 
     case DATE_DIALOG_ID: 
      // Handle any DatePickerDialog initialization here 
      DatePickerDialog dateDialog = (DatePickerDialog) dialog; 
      int iDay, iMonth, iYear; 
      // Check for date of birth preference 
      if (mGameSettings.contains(GAME_PREFERENCES_DOB)) { 
       // Retrieve Birth date setting from preferences 
       long msBirthDate = mGameSettings.getLong(GAME_PREFERENCES_DOB, 0); 
       Time dateOfBirth = new Time(); 
       dateOfBirth.set(msBirthDate); 
       iDay = dateOfBirth.monthDay; 
       iMonth = dateOfBirth.month; 
       iYear = dateOfBirth.year; 
      } else { 
       Calendar cal = Calendar.getInstance(); 
       // Today's date fields 
       iDay = cal.get(Calendar.DAY_OF_MONTH); 
       iMonth = cal.get(Calendar.MONTH); 
       iYear = cal.get(Calendar.YEAR); 
      } 
      // Set the date in the DatePicker to the date of birth OR to the 
      // current date 
      dateDialog.updateDate(iYear, iMonth, iDay); 
      return; 
     case PASSWORD_DIALOG_ID: 
      // Handle any Password Dialog initialization here 
      // Since we don't want to show old password dialogs, just set new 
      // ones, we need not do anything here 
      // Because we are not "reusing" password dialogs once they have 
      // finished, but removing them from 
      // the Activity Dialog pool explicitly with removeDialog() and 
      // recreating them as needed. 
      return; 
    } 
} 

}

一如既往，任何帮助非常感谢。

感谢

来源

2017-04-08 Phil Adams

您已经导入了错误的类：

import java.sql.Time;

进口：

import android.text.format.Time;

从Documentation

该类在API级别22已被否决。使用GregorianCalenda改为。

日历和GregorianCalendar类的替代方法。 Time类的一个实例表示一个时间点，用指定秒精度

来源

2017-04-08 14:28:05 rafsanahmad007

这就完成了。谢谢。 '时间'现在已经通过它。这很重要吗？ –

这只是表明该方法已被弃用......并添加了新的方法。但它仍然会工作... – rafsanahmad007

我已添加链接...您还可以使用simpleDateFormat ... – rafsanahmad007

方法未解决的Java DatePickerDialog

回答

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