Launch application using dial pad in android

问题

I want to launch my application through dial pad.I am using the following code. For dial pad to launch application (in Broadcast receiver)

public class HiddenReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
try{

               // Toast.makeText(context,"Number Dialed",1).show();

                Intent serviceIntent = new Intent(context,MainActivity.class);
                    serviceIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    context.startActivity(serviceIntent);



                }
                catch(Exception e)
                {
                    Log.d(TAG, ""+e.getMessage());
                }

While pressing key through dial pad I want to launch my main activity in which I used the following

public class MainActivity extends Activity
{
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_hidden_receiver); 

         //Intent call here
        Intent intent=getIntent();
        String message = intent.getStringExtra(MainActivity.TELEPHONY_SERVICE);
         //text here

But when I press my code its dialed number disappear but neither dialer pad disappear nor MainActivity launches. how can this issues be resolved?Help me out..... Thanks.

回答1:

Use the BroadcastReceiver as follows:

public class MyOutgoingCallHandler extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
     // Extract phone number reformatted by previous receivers
    String phoneNumber = getResultData();
    if (phoneNumber == null) {
      // No reformatted number, use the original
      phoneNumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
    }

         if(phoneNumber.equals("1234")){ // DialedNumber checking.
        // My app will bring up, so cancel the broadcast
        setResultData(null);

        // Start my app
        Intent i=new Intent(context,MainActivity.class);
        i.putExtra("extra_phone", phoneNumber);
        i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(i);
         }

}

}

Don't forget to register this receiver in your manifest

    <receiver android:name="MyOutgoingCallHandler">
        <intent-filter >
            <action android:name="android.intent.action.NEW_OUTGOING_CALL"/>
        </intent-filter>
    </receiver>

Also, include the permission:

<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>

Now, if you are ignoring the number checking in receiver, you'll get dialed number inside your MainActivity,

String phone=getIntent().getStringExtra("extra_phone");
    if(!phone.equals(null)){
        Toast.makeText(getBaseContext(), phone, Toast.LENGTH_LONG).show();
    }

来源：https://stackoverflow.com/questions/19950623/launch-application-using-dial-pad-in-android

标签

android

android-intent

broadcastreceiver