by guillaume leterrier (Teleca Germany) » Wed, 01 Apr 2009 16:49:20 GMT
Well, it would be difficult to achieve an OMTP compliancy because the application certification scheme doesn t follow the same security model. there is no central certificate authority that certify the trustworthiness of an application in Android. > thanks a lot
1. How to make mmc partition read only yet, make /system /data writeable
Hi,
How can I make the android rootfs in the mmc partition read
only, but set it up so that the /system and /data folders are
writeable?
When I initially prepare the android rootfs, you have the original
*.apk files. After first boot, the system converts the *.apk files to
*.dex files.
So if I make the initial mmc rootfs partition read only, I guess the
system wont be able to convert the *.apk files to *.dex files.
What should I do? Create two partitions on the mmc card? One to hold
some of the files and the other to hold another set?
Can some one tell me which files to go to which partition? I want one
partition for the system to be readonly, and the other partition to be
read-write, so that the system can use it for the cache, applications,
user storage etc.
Best regards,
Elvis
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2. Sending a data sms to an application port
Hello,
I use Android sdk 1.5 on ubuntu 8.0.4.
In my application I want to use a data sms on a special port to inform
my application about new available information. Then a background
thread should be started to process this information.
Currently i have an application sending data sms to port 12345 to an
application to another emulator. Both emulators can send and receive
sms. However there is no difference between a data sms and a text sms
in the incoming intent.
I send textSMS via:
String messageText = "Hello World";
SmsManager smsManager = SmsManager.getDefault();
smsManager.sendTextMessage(<PORT-Emulator-2>, null, messageText,
sentPi, deliveredPi);
and data messages via
short DATA_SMS_PORT = 12345;
String messageText = "Hello World";
SmsManager smsManager = SmsManager.getDefault();
smsManager.sendDataMessage(<PORT-Emulator-2>, null, DATA_SMS_PORT,
messageText.getBytes(), null, null);
This is the configuration of my BroadcastReceiver
<receiver android:name=".SMSReceiver">
<intent-filter>
<action android:name="android.provider.Telephony.SMS_RECEIVED" />
<action android:name="android.intent.action.DATA_SMS_RECEIVED" />
<data android:port="12345"/>
</intent-filter>
</receiver>
and a litte source code:
public void onReceive(Context context, Intent intent) {
...
StringBuilder sb = new StringBuilder();
Bundle bundle = intent.getExtras();
Log.d(LOGTAG, intent.toString());
SmsMessage[] messages = new SmsMessage[pdusObj.length];
for (int i = 0; i < pdusObj.length; i++) {
messages[i] = SmsMessage.createFromPdu((byte[])
pdusObj[i]);
}
for (SmsMessage currentMessage : messages) {
sb.append("SMS From: ");
sb.append(currentMessage.getDisplayOriginatingAddress());
}
Toast t = Toast.makeText(context, sb,
Toast.LENGTH_LONG);
t.show();
}
...
}
Whatever method i take to send the sms, I always receive a text sms.
When i log the "intent.toString()" it always returns
Intent {
action=android.provider.Telephony.SMS_RECEIVED
comp={de.mySms/de.mySms.SMSReceiver}
(has extras)
}
I see no possibility to use a intent-filter receiving data-sms
("android.intent.action.DATA_SMS_RECEIVED").
a) can anyone help me here? Is there a possibility to send AND receive
a data sms to a special application port from within the emulator?
b) Can i send, receive data sms from the G1?
c) Is this a known issue?
Any help is welcome.
Greetings Andy
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