我有一个提供短信的短信。 SMS数据存储在app数据库中。 该应用程序支持发送到多个联系人,因此在发送短信时,我会动态注册一个不同的BroadcastReceiver来监听每个短信是否被发送(我使用字符串中的每个电话号码来识别IntentFilter中的操作)。
我收到发送的确认后,在数据库中写短信。
问题是,如果用户在“已发送”的Intent广播之前离开活动,则BroadcastReceivers将丢失,我无法再捕获“已发送”的Intent,因此数据库不会更新。我选择的一个解决方法是实现onKeyDown()以防止用户在广播所有Intent之前关闭活动,但此解决方案仅适用于“后退”按钮 - 无法捕获“主页”按钮事件。
这是我的代码:
public void sendSMS(String[] phoneNumbers, String message){
final String currentMessage = message;
SmsManager sms = SmsManager.getDefault();
ArrayList<String> parts = sms.divideMessage(message);
for(int i=0; i<phoneNumbers.length; i++){
for(int j=0; j<parts.size(); j++){
BroadcastReceiver sent = new BroadcastReceiver(){
public void onReceive(Context arg0, Intent arg1) {
String[] arg = arg1.getAction().split(KEY_SMS_SENT);
String phoneNo = Utils.setSimpleFormatNumber(arg[1]);
String count = arg[0];
String parts = count.split(KEY_SMS_PART_NO)[0];
String partNo = count.split(KEY_SMS_PART_NO)[1];
sentReceivers.remove(this);
unregisterReceiver(this);
switch (getResultCode())
{
case Activity.RESULT_OK:
if(parts.equals(partNo)){
Toast.makeText(getBaseContext(), context.getString(R.string.sms_sent_message),
Toast.LENGTH_SHORT).show();
dbAdapter.createSentSMS(KEY_SMS_TYPE_SENT, phoneNo, currentMessage, Utils.getTimeStamp());
}
break;
case SmsManager.RESULT_ERROR_GENERIC_FAILURE:
if(parts.equals(partNo)){
Toast.makeText(getBaseContext(), context.getString(R.string.sms_generic_failure_message),
Toast.LENGTH_SHORT).show();
dbAdapter.createSentSMS(KEY_SMS_TYPE_FAILED, phoneNo, currentMessage, Utils.getTimeStamp());
}
break;
case SmsManager.RESULT_ERROR_NO_SERVICE:
if(parts.equals(partNo)){
Toast.makeText(getBaseContext(), context.getString(R.string.sms_no_service_message),
Toast.LENGTH_SHORT).show();
dbAdapter.createSentSMS(KEY_SMS_TYPE_FAILED, phoneNo, currentMessage, Utils.getTimeStamp());
}
break;
case SmsManager.RESULT_ERROR_NULL_PDU:
if(parts.equals(partNo)){
Toast.makeText(getBaseContext(), context.getString(R.string.sms_null_pdu_message),
Toast.LENGTH_SHORT).show();
dbAdapter.createSentSMS(KEY_SMS_TYPE_FAILED, phoneNo, currentMessage, Utils.getTimeStamp());
}
break;
case SmsManager.RESULT_ERROR_RADIO_OFF:
if(parts.equals(partNo)){
Toast.makeText(getBaseContext(), context.getString(R.string.sms_radio_off_message),
Toast.LENGTH_SHORT).show();
dbAdapter.createSentSMS(KEY_SMS_TYPE_FAILED, phoneNo, currentMessage, Utils.getTimeStamp());
}
break;
}
}
};
registerReceiver(sent, new IntentFilter(String.valueOf(parts.size()-1) + KEY_SMS_PART_NO + String.valueOf(j) + KEY_SMS_SENT + phoneNumbers[i]));
//I add the BroadcastReceiver-s to a Vector in order to keep track of them
sentReceivers.add(sent);
}
}
//I use an IntentService to do the actual sending
Intent intent = new Intent(context, SMSSendService.class);
intent.putExtra(KEY_SELECTED_PHONE_NUMBERS, phoneNumbers);
intent.putExtra(KEY_SMS_MESSAGE, message);
intent.putExtra(KEY_ACTION, KEY_REQUEST_SEND_SMS);
startService(intent);
}
这是IntentService中的代码:
public void sendSMS(String phoneNo, String message, SmsManager sms)
{
ArrayList<String> parts = sms.divideMessage(message);
ArrayList<PendingIntent> sentPIs = new ArrayList<PendingIntent>();
for(int i=0; i<parts.size(); i++){
sentPIs.add(PendingIntent.getBroadcast(context, 0, new Intent(String.valueOf(parts.size()-1) + KEY_SMS_PART_NO + String.valueOf(i) + KEY_SMS_SENT + phoneNo), 0));
}
sms.sendMultipartTextMessage(phoneNo, null, parts, sentPIs, deliveredPIs);
}
答案 0 :(得分:0)
您可以创建一个服务(而不是IntentService),您可以在其中实例化所有BroadcastReceivers并执行发送SMS逻辑。这样,您的短信将在后台发送,您可以拦截已发送/已发送的广播。