我有一个应用程序，发送短信到其他Android或非Android手机。您可以选择或输入联系人。但问题是，当我到达发送短信的部分时，它会一直崩溃。
btnRecipient.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_PICK, Contacts.CONTENT_URI);
startActivityForResult(intent, CONTACT_PICKER_RESULT);
}
});
}
@Override
public void onActivityResult(int reqCode, int resultCode, Intent data) {
super.onActivityResult(reqCode, resultCode, data);
switch (reqCode) {
case (CONTACT_PICKER_RESULT):
if (resultCode == Activity.RESULT_OK) {
Uri contactData = data.getData();
Cursor c = managedQuery(contactData, null, null, null, null);
if (c.moveToFirst()) {
String name = c.getString(c.getColumnIndexOrThrow(Contacts.DISPLAY_NAME));
editTextRecipient.setText(name);
}
}
break;
}
btnSend.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
String phoneNo = editTextRecipient.getText().toString();
String message = editTextNewMessage.getText().toString();
if (phoneNo.length()>0 && message.length()>0)
sendSMS(phoneNo, message);
else
Toast.makeText(getBaseContext(),
"Please enter both phone number and message.",
Toast.LENGTH_SHORT).show();
}
});
}
private void sendSMS(String phoneNo, String message)
{
String SENT = "SMS_SENT";
String DELIVERED = "SMS_DELIVERED";
PendingIntent sentPI = PendingIntent.getBroadcast(this, 0,
new Intent(SENT), 0);
PendingIntent deliveredPI = PendingIntent.getBroadcast(this, 0,
new Intent(DELIVERED), 0);
registerReceiver(new BroadcastReceiver(){
@Override
public void onReceive(Context arg0, Intent arg1) {
switch (getResultCode())
{
case Activity.RESULT_OK:
Toast.makeText(getBaseContext(), "SMS sent",
Toast.LENGTH_SHORT).show();
break;
case SmsManager.RESULT_ERROR_GENERIC_FAILURE:
Toast.makeText(getBaseContext(), "Generic failure",
Toast.LENGTH_SHORT).show();
break;
case SmsManager.RESULT_ERROR_NO_SERVICE:
Toast.makeText(getBaseContext(), "No service",
Toast.LENGTH_SHORT).show();
break;
case SmsManager.RESULT_ERROR_NULL_PDU:
Toast.makeText(getBaseContext(), "Null PDU",
Toast.LENGTH_SHORT).show();
break;
case SmsManager.RESULT_ERROR_RADIO_OFF:
Toast.makeText(getBaseContext(), "Radio off",
Toast.LENGTH_SHORT).show();
break;
}
}
}, new IntentFilter(SENT));
registerReceiver(new BroadcastReceiver(){
@Override
public void onReceive(Context arg0, Intent arg1) {
switch (getResultCode())
{
case Activity.RESULT_OK:
Toast.makeText(getBaseContext(), "SMS delivered",
Toast.LENGTH_SHORT).show();
break;
case Activity.RESULT_CANCELED:
Toast.makeText(getBaseContext(), "SMS not delivered",
Toast.LENGTH_SHORT).show();
break;
}
}
}, new IntentFilter(DELIVERED));
SmsManager sms = SmsManager.getDefault();
sms.sendTextMessage(phoneNo, null, message, sentPI, deliveredPI);
}
}
并且继承了LogCat：
10-26 12:23:29.633: E/AndroidRuntime(11986): FATAL EXCEPTION: main
10-26 12:23:29.633: E/AndroidRuntime(11986): java.lang.NullPointerException
10-26 12:23:29.633: E/AndroidRuntime(11986): at com.android.internal.telephony.gsm.SmsMessage.getSubmitPduHead(SmsMessage.java:663)
10-26 12:23:29.633: E/AndroidRuntime(11986): at com.android.internal.telephony.gsm.SmsMessage.getSubmitPdu(SmsMessage.java:339)
10-26 12:23:29.633: E/AndroidRuntime(11986): at android.telephony.SmsMessage.getSubmitPdu(SmsMessage.java:613)
10-26 12:23:29.633: E/AndroidRuntime(11986): at android.telephony.SmsManager.sendTextMessage(SmsManager.java:228)
10-26 12:23:29.633: E/AndroidRuntime(11986): at android.telephony.SmsManager.sendTextMessage(SmsManager.java:107)
10-26 12:23:29.633: E/AndroidRuntime(11986): at android.telephony.gsm.SmsManager.sendTextMessage(SmsManager.java:79)
10-26 12:23:29.633: E/AndroidRuntime(11986): at com.example.KAHTextApp.KAHTextApp.sendSMS(KAHTextApp.java:136)
10-26 12:23:29.633: E/AndroidRuntime(11986): at com.example.KAHTextApp.KAHTextApp.access$0(KAHTextApp.java:78)
10-26 12:23:29.633: E/AndroidRuntime(11986): at com.example.KAHTextApp.KAHTextApp$2.onClick(KAHTextApp.java:69)
10-26 12:23:29.633: E/AndroidRuntime(11986): at android.view.View.performClick(View.java:2532)
10-26 12:23:29.633: E/AndroidRuntime(11986): at android.view.View$PerformClick.run(View.java:9293)
10-26 12:23:29.633: E/AndroidRuntime(11986): at android.os.Handler.handleCallback(Handler.java:587)
10-26 12:23:29.633: E/AndroidRuntime(11986): at android.os.Handler.dispatchMessage(Handler.java:92)
10-26 12:23:29.633: E/AndroidRuntime(11986): at android.os.Looper.loop(Looper.java:143)
10-26 12:23:29.633: E/AndroidRuntime(11986): at android.app.ActivityThread.main(ActivityThread.java:4277)
10-26 12:23:29.633: E/AndroidRuntime(11986): at java.lang.reflect.Method.invokeNative(Native Method)
10-26 12:23:29.633: E/AndroidRuntime(11986): at java.lang.reflect.Method.invoke(Method.java:507)
10-26 12:23:29.633: E/AndroidRuntime(11986): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
10-26 12:23:29.633: E/AndroidRuntime(11986): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
10-26 12:23:29.633: E/AndroidRuntime(11986): at dalvik.system.NativeStart.main(Native Method)
这里有什么问题？以及如何解决这个问题？
答案 0 :(得分：4)
这与here所描述的问题非常相似。
如果您将方法调用sendTextMessage替换为sendMultipartTextMessage它是否有效？你能记录你的变量消息在这一点上的时间吗？
编辑：
因此，如果您尝试发送超过160个字符的单个sms消息，则会出现空指针异常。为避免这种情况，请将邮件拆分为多个部分。这是我写的一些测试代码：
public void textSingle(View view) {
sendSMS("XXXXXXXXXX", "Test", false);
}
public void textSingleLong(View view) {
sendSMS("XXXXXXXXXX",
"TestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTest",
false);
}
public void textMulti(View view) {
sendSMS("XXXXXXXXXX",
"TestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTest",
true);
}
private void sendSMS(String phoneNo, String message, boolean split) {
...
SmsManager sms = SmsManager.getDefault();
if (!split) {
Log.d("SMSTest", "Sending single message: " + message);
sms.sendTextMessage(phoneNo, null, message, sentPI, deliveredPI);
} else {
Log.d("SMSTest", "Sending '" + message + "' in multiple parts.");
ArrayList<String> parts = sms.divideMessage(message);
Log.d("SMSTest", parts.size() + " parts:");
for (String string : parts) {
Log.d("SMSTest", string);
}
ArrayList<PendingIntent> sentList = new ArrayList<PendingIntent>();
ArrayList<PendingIntent> deliveredList = new ArrayList<PendingIntent>();
for (int i = 0; i < parts.size(); i++) {
sentList.add(sentPI);
deliveredList.add(deliveredPI);
}
sms.sendMultipartTextMessage(phoneNo, null, parts, sentList,
deliveredList);
}
}
我将按钮连接到这些方法中的每一个，并且当我尝试发送单个长消息时，它们对我来说正常工作，并且出现NullPointerException。当你这样做时，我真的不知道你为什么会得到如此无益的信息，但这似乎就是这样的。
答案 1 :(得分：0)
在一行：
中执行此操作SmsManager sms = SmsManager.getDefault();
ArrayList<String> parts = sms.divideMessage(message);
sms.sendMultipartTextMessage(phoneNumber, null, parts, null, null);