Android dial cipher to start the app

Recently, wrote a small application of information about equipment, requirements in the launcher is not obvious, through the dial-up keyboard cipher to start the application. The following notes are available:

Software platform: Android4.4.3

First, you want to register to receive Android cipher broadcasts in Androidmanifest.xml.

        <span style= "FONT-SIZE:18PX;" ><receiver android:name= "Infosecretcode" >            <intent-filter>                <action android:name= " Android.provider.Telephony.SECRET_CODE "/>                <data                    android:host=" 668866 "                    android:scheme=" Android_secret_code "/>            </intent-filter>        </receiver></span>

Secondly, we need to instantiate the processing of the received broadcast event, named Infosecretcode.java, the code is as follows:

<span style= "FONT-SIZE:18PX;" >import Android.content.context;import Android.content.intent;import Android.content.broadcastreceiver;import Android.util.config;import Android.util.log;import Android.view.keyevent;public class InfoSecretCode extends Broadcastreceiver {    private final String secret_code_action = "Android.provider.Telephony.SECRET_CODE";     Public Infosecretcode () {    }    @Override      the public void onreceive (context context, Intent Intent) {        if ( Intent.getaction (). Equals (Secret_code_action)) {            Intent i = new intent (intent.action_main);            I.setclass (context, infoactivity.class);            I.setflags (intent.flag_activity_new_task);            Context.startactivity (i);}}    } </span>

so, in the dial-up keyboard input "*#* #668866 #*#*" can pop up infoactivity, specific activity to add themselves.

Android dial cipher to start the app