android headset button

-> state_on; Switch_data_headset-> state_off = pdata_headset-> state_off; Switch_data_headset-> SDEV. print_state = switch_headset_print_state; Info-> psw_data_headset = switch_data_headset; Ret = switch_dev_register ( switch_data_headset-> SDEV ); In the/sys/class/switch directory, the h2w sub-directory will be generated, with some members such as State and name, and the driver will determine whether the headset is inserted through Gpio simulates the

. layout. activity_main); // intentfilter bound to the broadcast response intentfilter = new intentfilter (); intentfilter. addaction ("android. intent. action. headset_plug "); headsetreceiver = new headsetreceiver (); registerreceiver (headsetreceiver, intentfilter );} // custom broadcast receiver public class headsetreceiver extends broadcastreceiver {@ overridepublic void onreceive (context, intent) {If (intent. hasextra ("state") {If (0 = intent.

AndroidIn fact, the code of the headset detection is rarely changed. This is because there are few documents. It took nearly two months. The driver has three implementation versions: First, drivers/Char/micco_hsdetect.cIt reports the status to the user space through kobject_uevent. Second: Drivers/input/keyboard/micco_keys.cIt reports events to the user space through input_report_switch. Third: Drivers/switch/switch_micco.cRegistered a switch_dev, whi

Android automatically exits the FM Radio application when the flight mode is enabled and the headset is pulled out. The FM radio needs to be inserted into the headset as an antenna, and automatically exits when the headset is pulled out. 1. First add the prompt string Mediatek/packages/apps/FMRadio/res/values/strings.

Audiomanager has this method: Iswiredheadseton (); Returns true if the headset is inserted, otherwise false; Of course, to add a permission, or always return false. I started chasing after a long time source code. The process of detecting headphone inserts and unplugging was found in real time, but not very helpful to my needs. Real-time detection of headphone insertion and pull-out: Every time you insert and unplug headphones, the system sends intent

isswitch = (Switchantenna (mvalueheadsetplug) = = 0)? True:false; LOGUTILS.D (TAG, "Onreceive.switch anntenna:iswitch:" + isswitch); @@ -380,7 +423,27 @@ -380,7 class Fmradioservice extends Service implements Fmrecorder.onrecorderstat logutils.d (TAG, "Setfmviabtcontroller (false) succeeded!!"); Musingfmviabtcontroller = false; Enablefmaudio (True);-} */else {+} */++//{@TChip ZJ Add start++else if (intent.action_airplane_mode_ Changed.equals

PrincipleIn fact, the Android system will send the broadcast when the headset is plugged in and unplugged, so we want to detect the headset's status only needs to register the response of the broadcastreceiver, the status of the response to the judgment is OK.The name of the broadcast is called:Android.intent.action.HEADSET_PLUGCode Packagecom.yydcdut.ear;ImportAndroid.os.Bundle;Importandroid.app.Activity;I

PrincipleIn fact, the Android system will send the broadcast when the headset is plugged in and unplugged, so we want to detect the headset's status only needs to register the response of the broadcastreceiver, the status of the response to the judgment is OK.The name of the broadcast is called:Android.intent.action.HEADSET_PLUGCodePackage Com.yydcdut.ear;import Android.os.bundle;import Android.app.activity

()) {case MotionEvent.ACTION_DOWN:view.getHitRect (frame); Frame.contains ((int) (x), (int) (y))) {StartX = X;starty = Y;istouchdrag = True;isclickdrag = true;postdelayed (Checkclick, Viewconfiguration.gettaptimeout ());} Break;case MotionEvent.ACTION_MOVE:float Distanx = Math.Abs (x-startx); float Distany = Math.Abs (Y-starty); if (math.sqrt (Distany * distany + Distanx * Distanx) >) {Isclickdrag = false;} Move (x, y); Break;case MotionEvent.ACTION_CANCEL:isClickDrag = False;istouchdrag = Fal

Android _ android binds events to button controls in five ways. Android button controls I. Preface Here, we will introduceBinding events to controls -- buttons in Android. II. Specific implementation First: directly bound to the

Android basic getting started -- 2.3.5.RadioButton (single choice button) Checkbox (check box), android single choice buttonBasic Android tutorial -- 2.3.5.RadioButton (single choice button) Checkbox (check box) Tags (separated by spaces): basic