如何在棉花糖及更高版本的Android中以编程方式接听来电？（以上安全补丁更新日期为1/09/16）

Question

Hi Everyone i am making a android app to answer all incoming call through my app i have done nicely for lolipop and below but also want to do that for marshmallow and above , i did lot of R & D but have not found any satisfied solution , so i am asking by my own

Below code is not working for marshmallow and above. This code is working till Lolipop.

  private void acceptCall_n() {

            // for HTC devices we need to broadcast a connected headset
            boolean broadcastConnected = MANUFACTURER_HTC.equalsIgnoreCase(Build.MANUFACTURER)
                    && !audioManager.isWiredHeadsetOn();



            if (broadcastConnected) {
                broadcastHeadsetConnected(false);
            }

            try {

                try {
                    // logger.debug("execute input keycode headset hook");
                    Runtime.getRuntime().exec("input keyevent " +
                            Integer.toString(KeyEvent.KEYCODE_HEADSETHOOK));


                } catch (IOException e) {

                    Log.e("Call Exception ",e.toString());
                    HelperMethods.showToastS(getBaseContext(),"Call Exception one "+e.toString());
                    // Runtime.exec(String) had an I/O problem, try to fall back
                    //    logger.debug("send keycode headset hook intents");
                    String enforcedPerm = "android.permission.CALL_PRIVILEGED";
                    Intent btnDown = new Intent(Intent.ACTION_MEDIA_BUTTON).putExtra(
                            Intent.EXTRA_KEY_EVENT, new KeyEvent(KeyEvent.ACTION_DOWN,
                                    KeyEvent.KEYCODE_HEADSETHOOK));
                    Intent btnUp = new Intent(Intent.ACTION_MEDIA_BUTTON).putExtra(
                            Intent.EXTRA_KEY_EVENT, new KeyEvent(KeyEvent.ACTION_UP,
                                    KeyEvent.KEYCODE_HEADSETHOOK));

                     sendOrderedBroadcast(btnDown, enforcedPerm);
                    sendOrderedBroadcast(btnUp, enforcedPerm);
                }
            }catch (Exception e){
                e.printStackTrace();
                Log.e("Call Exception two",e.toString());
                HelperMethods.showToastS(getBaseContext(),"Call Exception two "+e.toString());
            }finally {
                if (broadcastConnected) {
                    broadcastHeadsetConnected(false);
                }
            }
        }

Answer 1

I faced the same issue. Root cause of it is that executing command is not allowed by SELinux rules. Try to use this solution. I've tested it on Android Marshmallow it works.