Virual recent Service

1. Mainactivity.java

Package Com.jianli.virtualrecent;import Android.app.activity;import Android.content.intent;import Android.content.sharedpreferences;import Android.os.bundle;public class Mainactivity extends Activity {private static Final string TAG = "Virtualrecent";p rivate static final String preferences_virtual_recent_service = "Preferences_virtual _recent_service ";p rivate static final String key_pref_virtual_recent_service_started =" Key_pref_virtual_recent_ Service_started "; @Overrideprotected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (R.layout.activity_main); SECLOG.E (TAG, "onCreate");} @Overrideprotected void OnDestroy () {SECLOG.E (TAG, "OnDestroy"); Super.ondestroy ();} @Overrideprotected void OnPause () {SECLOG.E (TAG, "OnPause"); Super.onpause ();} @Overrideprotected void Onresume () {SECLOG.E (TAG, "Onresume"); Sharedpreferences msharedpreferences = getsharedpreferences (Preferences_virtual_recent_service, Activity.MODE_ PRIVATE); Sharedpreferences.editor Editor= Msharedpreferences.edit (); Intent Intent = new Intent (this, virtualrecentservice.class); if ( Msharedpreferences.getboolean (key_pref_virtual_recent_service_started, false) = = False) {StartService (intent); Editor.putboolean (key_pref_virtual_recent_service_started, True);} Else{stopservice (intent); Editor.putboolean (key_pref_virtual_recent_service_started, false);} Editor.commit (); Finish (); Super.onresume ();}}

2. Virtualrecentservice.java

Package Com.jianli.virtualrecent;import Java.lang.reflect.field;import Android.annotation.suppresslint;import Android.app.activity;import Android.app.service;import Android.content.context;import android.content.Intent; Import Android.content.sharedpreferences;import Android.graphics.pixelformat;import Android.os.IBinder;import Android.view.gravity;import Android.view.layoutinflater;import Android.view.motionevent;import Android.view.View; Import Android.view.view.ontouchlistener;import Android.view.windowmanager;import Android.view.windowmanager.layoutparams;import Android.widget.imagebutton;import android.widget.LinearLayout;@ Suppresslint ("Inflateparams") public class Virtualrecentservice extends Service {private static final String TAG = "Virtua Lrecentservice ";p rivate static final String Preferences_virtual_recent_service =" Preferences_virtual_recent_service ";p rivate static final String key_preferences_vrs_window_x =" key_preferences_vrs_window_x ";p rivate static final string Key_preferences_vrs_window_y = "Key_preferences_vrs_window_y";p rivate static final String Key_preferences_vrs_statusbar_ HEIGHT = "Key_preferences_vrs_statusbar_height";p rivate static final String vrs_toggle_recent_intent = " Com.android.systemui.recent.action.TOGGLE_RECENTS ";p rivate sharedpreferences msharedpreferences;private LinearLayout mfloatlayout;private windowmanager.layoutparams wmparams;private windowmanager mWindowManager;private ImageButton mbtnimage;private static int mstatusbarheight = 0;private static float Mpreviousx = 0;private static float mPr Eviousy = 0;private static Boolean bismoved = false; @Overridepublic ibinder Onbind (Intent arg0) {seclog.e (TAG, "Onbind"); r Eturn null;} @Overridepublic void OnCreate () {SECLOG.E (TAG, "onCreate"); Super.oncreate ();} @Overridepublic void OnDestroy () {SECLOG.E (TAG, "OnDestroy"); if (mfloatlayout! = null) {Mwindowmanag        Er.removeview (mfloatlayout); }super.ondestroy ();} @Overridepublic int Onstartcommand (Intent Intent, int flags, int startid) {seclog.e (TAG, "Onstartcommand"); msharedpreferences = Getsharedpreferences (Preferences_virtual_ Recent_service, activity.mode_private); Layoutinflater inflater = Layoutinflater.from (Getapplication ()); mfloatlayout = (linearlayout) inflater.inflate ( R.layout.float_layout, null); mbtnimage = (ImageButton) Mfloatlayout.findviewbyid (r.id.btn_recent); mstatusbarheight        = Msharedpreferences.getint (key_preferences_vrs_statusbar_height, 0);        if (0 = = mstatusbarheight) {mstatusbarheight = Getstatusbarheight (Getbasecontext ()); Sharedpreferences.editor Editor = Msharedpreferences.edit (); Editor.putint (Key_preferences_vrs_statusbar_height,        Mstatusbarheight); Editor.commit (); }createfloatview (); bismoved = False;return Super.onstartcommand (Intent, flags, Startid);} private void Createfloatview () {SECLOG.E (TAG, "Createfloatview"); wmparams = new Windowmanager.layoutparams (); Mwindowmanager = (WindowManager) getapplication (). Getsystemservice (Getapplication (). Window_serviCE); wmparams.type = Layoutparams.type_phone;wmparams.format = Pixelformat.rgba_8888;wmparams.flags = layoutparams.flag_not_focusable;wmparams.gravity = Gravity.left | Gravity.top;wmparams.x = Msharedpreferences.getint (key_preferences_vrs_window_x, 0); wmParams.y = Msharedpreferences.getint (key_preferences_vrs_window_y, 0); mpreviousx = Wmparams.x;mpreviousy = WmParams.y; Wmparams.width = 77;wmparams.height = 77;mwindowmanager.addview (Mfloatlayout, wmparams); Mbtnimage.setontouchlistener (New Ontouchlistener () {@Overridepublic Boolean OnTouch (View arg0, motionevent event) { SECLOG.E (Tag, "OnTouch"), switch (event.getactionmasked ()) {case MOTIONEVENT.ACTION_DOWN:SECLOG.E (tag, "OnTouch, Action_down "); Mpreviousx = Event.getrawx (); mpreviousy = Event.getrawy (); Break;case MOTIONEVENT.ACTION_MOVE:SECLOG.E (TAG, "OnTouch, Action_move"); if (Math.Abs (MPREVIOUSX-EVENT.GETRAWX ()) < && Math.Abs (Mpreviousy- Event.getrawy ()) <) return false;bismoved = True;wmparams.x = (int) (EVENT.GETRAWX () -Mfloatlayout.getmeasuredwidth ()/2); wmparams.y = (int) (Event.getrawy ()-Mstatusbarheight- Mfloatlayout.getmeasuredheight ()/2); Mwindowmanager.updateviewlayout (Mfloatlayout, wmparams); break;case MOTIONEVENT.ACTION_UP:SECLOG.E (TAG, "OnTouch, action_up"); if (true = = bismoved) {bismoved = false; Sharedpreferences.editor Editor = Msharedpreferences.edit (); Editor.putint (key_preferences_vrs_window_x, wmParams.x ); Editor.putint (key_preferences_vrs_window_y, Wmparams.y); Editor.commit (); return false;} Intent Intent = new Intent (vrs_toggle_recent_intent); Intent.setclassname ("Com.android.systemui", " Com.android.systemui.recent.RecentsActivity "); Intent.setflags (Intent.flag_activity_new_task | intent.flag_activity_exclude_from_recents); startactivity (Intent); BREAK;DEFAULT:SECLOG.E (TAG, "onTouch,event=" + Event.getactionmasked ()); break;} return false;}}); @Overridepublic boolean onunbind (Intent Intent) {seclog.e (TAG, "Onunbind"); return Super.onunbind (Intent);} public static int Getstatusbarheight (Context cOntext) {SECLOG.E (TAG, "getstatusbarheight");        Class<?> c = null;        Object obj = null;        Field field = NULL;        int x = 0, statusbarheight = 0;            try {c = class.forname ("Com.android.internal.r$dimen");            obj = C.newinstance ();            field = C.getfield ("Status_bar_height");            x = Integer.parseint (Field.get (obj). toString ());        Statusbarheight = Context.getresources (). getdimensionpixelsize (x);        } catch (Exception E1) {e1.printstacktrace ();    } return statusbarheight; }}

3. Virtualrecentbootreceiver.java

Package Com.jianli.virtualrecent;import Android.app.activity;import Android.content.broadcastreceiver;import Android.content.context;import Android.content.intent;import Android.content.sharedpreferences;import Android.widget.toast;public class Virtualrecentbootreceiver extends Broadcastreceiver {private static final String TAG = "Virtualrecentbootreceiver";p rivate static final String Preferences_virtual_recent_service = "Preferences_virtual_ Recent_service ";p rivate static final String key_pref_virtual_recent_service_started =" Key_pref_virtual_recent_ Service_started "; @Overridepublic void OnReceive (context context, Intent arg1) {seclog.e (TAG," onreceive "); Toast.maketext (Context, "Boot complete", Toast.length_long). Show (); Intent Intent = new Intent (context, Virtualrecentservice.class); Context.startservice (intent); Sharedpreferences msharedpreferences = context.getsharedpreferences (Preferences_virtual_recent_service, Activity.mode_private); Sharedpreferences.editor Editor = MsharedpreferencEs.edit (); Editor.putboolean (key_pref_virtual_recent_service_started, True); Editor.commit ();}} 

4. Manifest.java

<?xml version= "1.0" encoding= "Utf-8"? ><manifest xmlns:android= "http://schemas.android.com/apk/res/ Android "package=" Com.jianli.virtualrecent "android:versioncode=" 1 "android:versionname=" 1.0 "> &LT;USES-SD K android:minsdkversion= "8" android:targetsdkversion= "/> <uses-permission android:name=" Android . permission. Receive_boot_completed "/> <uses-permission android:name=" Android.permission.SYSTEM_ALERT_WINDOW "/> <a Pplication android:allowbackup= "true" android:icon= "@drawable/ic_launcher" android:label= "@string/app _name "> <activity android:name=".            Mainactivity "Android:theme=" @android: Style/theme.nodisplay "android:label=" @string/app_name "> <intent-filter> <action android:name= "Android.intent.action.MAIN"/> & Lt;category android:name= "Android.intent.category.LAUNCHER"/> </intent-filter> </activity> <service android:name= ".            Virtualrecentservice "> </service> <receiver android:name=" Virtualrecentbootreceiver ">                <intent-filter > <action android:name= "Android.intent.action.BOOT_COMPLETED" > </action> </intent-filter> </receiver> </application></manifest>

5. Activity_main.xml

<relativelayout xmlns:android= "http://schemas.android.com/apk/res/android"    xmlns:tools= "http// Schemas.android.com/tools "    android:layout_width=" match_parent "    android:layout_height=" Match_parent "    tools:context= "${relativepackage}.${activityclass}" ></RelativeLayout>

6. Float_layout.xml

<?xml version= "1.0" encoding= "Utf-8"? ><linearlayout xmlns:android= "http://schemas.android.com/apk/res/ Android "    android:layout_width=" match_parent "    android:layout_height=" match_parent "    android:o rientation= "vertical" >        <imagebutton    android:id= "@+id/btn_recent"    android:src= "@drawable/ Recent_button "        android:layout_width=" wrap_content "        android:layout_height=" Wrap_content "/></ Linearlayout>

Virual recent Service