In Android a secret code is defined by this pattern: *#*#<code>#*#*
If such a secret code is executed, the system Dialer app will trigger this code:AOSP Code
static private boolean handleSecretCode(Context context, String input) {
int len = input.length();
if (len > 8 && input.startsWith("*#*#") && input.endsWith("#*#*")) {
Intent intent = new Intent(TelephonyIntents.SECRET_CODE_ACTION,
Uri.parse("android_secret_code://" + input.substring(4, len - 4)));
context.sendBroadcast(intent);
return true;
}
return false;
}
Directly through the dialer application of your Android device. Simply write the secret code like: ##123456789##. There are two ways to execute a secret code:
- Using the intent-filter match rules action phase : SECRET_CODE_ACTION data scheme phase : android_secret_code data host phase : input.substring()
string SECRET_CODE_ACTION = "android.provider.Telephony.SECRET_CODE"
final Intent intent = new Intent(SECRET_CODE_ACTION,
Uri.parse("andorid_secret_code://" + input.substring(4, len - 4)));
context.sendBroadcast(intent);
- Using the extra data action phase : oem_key_code_action putExtra : extra input data
Intent intent = new Intent(context.getString(R.string.oem_key_code_action));
intent.putExtra(context.getString(R.string.oem_code), input);
context.sendBroadcast(intent)
String secretCode = "123456789";
Intent intent = new Intent(Intent.ACTION_DIAL);
intent.setData(Uri.parse("tel:*#*#" + secretCode + "#*#*"));
startActivity(intent);
dd these lines in your AndroidManifest.xml And whenever ##123456789## is submitted, your receiver will be notified.
<receiver android:name=".MySecretCodeReceiver">
<intent-filter>
<action android:name="android.provider.Telephony.SECRET_CODE" />
<data android:scheme="android_secret_code" android:host="123456789" />
</intent-filter>
</receiver>
