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我編寫的應用程序爲大學和其中一項活動發送(按鈕單擊)銀行信息保存在偏好通過短信和電子郵件在背景中..目前的電子郵件將發送,但信息保存在喜好將與空值到達:Android的幫助!空指針和代碼問題
發送電子郵件的方法:
public synchronized void sendMail(String loc, String sender, String recipients) throws Exception {
try{
MimeMessage message = new MimeMessage(session);
//loc = loc.replace(" ", "");
String mes = "Help!! I've completely run out of money and need you to send some via bank transfer please. "
+ "my account info is: "
+ BankNameAddress
+ " "
+ " account number: "
+ BankAccount
+ " Sort Code is: "
+ SortCode
+ " "
+ "Thank you so much!!";
DataHandler handler = new DataHandler(new ByteArrayDataSource(mes.getBytes(), "text/plain"));
message.setSender(new InternetAddress(sender));
message.setSubject("Help Money Emergency!");
message.setDataHandler(handler);
addAttachment(mes);
message.setContent(_multipart);
if (recipients.indexOf(',') > 0)
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipients));
else
message.setRecipient(Message.RecipientType.TO, new InternetAddress(recipients));
Transport.send(message);
}catch(Exception e){
}
}
喜好的java:
package com.attack.android;
import android.os.Bundle;
import android.preference.PreferenceActivity;
public class Prefs extends PreferenceActivity{
@SuppressWarnings("deprecation")
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.prefs);
}
}
喜好XML:
<EditTextPreference
android:key="BankAccount"
android:summary="Enter your bank account number"
android:title="Bank account Number" >
</EditTextPreference>
<EditTextPreference
android:key="BankNameAddress"
android:summary="Enter your banks name and address"
android:title="Bank name and address" >
</EditTextPreference>
<EditTextPreference
android:key="SortCode"
android:summary="Enter your bank sort code"
android:title="Sort Code" >
</EditTextPreference>
請發佈您的logcat輸出。 – SilentKiller
首先,不要以字符串格式發送敏感信息,而是使用char [],這樣更安全。 – Dejan
如何從首選項中檢索數據? – PearsonArtPhoto