Float Camera Service

1. Mainactivity.java

Package Com.jean.lee.floatcamera;import Android.annotation.suppresslint;import Android.app.activity;import Android.content.intent;import Android.content.sharedpreferences;import Android.graphics.rect;import Android.hardware.camera;import Android.os.bundle;import Android.util.displaymetrics;import android.widget.Toast; Import Com.jean.lee.floatcamera.service.floatcameraservice;import com.jean.lee.floatcamera.util.seclog;@  Suppresslint ("Newapi") public class Mainactivity extends Activity {private static final String TAG = "Floatcamera";p rivate Static final String float_cam_service_preferences = "Pref_float_camera_service";p rivate static final string Key_ preferences_service_started = "key_preferences_service_started";p rivate static final String Key_preferences_screen_ HEIGHT = "Key_preferences_screen_height";p rivate static final String key_preferences_camera_numbers = "key_preferences _camera_numbers "; @Overrideprotected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (R.layout.activity_main); SECLOG.E (TAG, "onCreate");} @Overrideprotected void Onresume () {SECLOG.E (TAG, "Onresume"); Sharedpreferences msharedpreferences = getsharedpreferences (float_cam_service_preferences, Activity.MODE_PRIVATE); if (Msharedpreferences.getint (Key_preferences_camera_numbers,-2) = = 0) {Toast.maketext (this, r.string.toast_no_ Camera, Toast.length_short). Show (); Finish ();} else if (Msharedpreferences.getint (Key_preferences_camera_numbers,-2) = =-2) {Sharedpreferences.editor Editor =        Msharedpreferences.edit ();        Editor.putint (Key_preferences_camera_numbers, Camera.getnumberofcameras ()); Editor.commit ();}        if (Msharedpreferences.getint (key_preferences_screen_height, 0) = = 0) {displaymetrics dm = new Displaymetrics ();        This.getwindowmanager (). Getdefaultdisplay (). Getmetrics (DM);        int screenheight = Dm.heightpixels;        SECLOG.E (TAG, "screenheight=" +screenheight);        Sharedpreferences.editor Editor = Msharedpreferences.edit (); Editor.Putint (Key_preferences_screen_height, screenheight);        Editor.commit ();} Intent Intent = new Intent (mainactivity.this, Floatcameraservice.class); Sharedpreferences.editor Editor = Msharedpreferences.edit (); if (!msharedpreferences.getboolean (KEY_PREFERENCES_ Service_started, False)) {SECLOG.E (TAG, "Call Start Service"); StartService (intent); Editor.putboolean (Key_ Preferences_service_started, True);} else {SECLOG.E (TAG, "Call Stop Service"); StopService (intent); Editor.putboolean (key_preferences_service_started, FALSE);} Editor.commit (); Finish (); Super.onresume ();} @Overrideprotected void OnDestroy () {SECLOG.E (TAG, "OnDestroy"); Super.ondestroy ();} @Overrideprotected void OnPause () {SECLOG.E (TAG, "OnPause"); Super.onpause ();}}

2. Floatcameraservice.java

Package Com.jean.lee.floatcamera.service;import Java.io.ioexception;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.hardware.camera;import Android.hardware.camera.camerainfo;import Android.hardware.camera.parameters;import Android.os.ibinder;import Android.os.vibrator;import Android.view.gravity;import Android.view.layoutinflater;import Android.view.motionevent;import Android.view.surfaceholder;import Android.view.surfaceview;import Android.view.view;import Android.view.view.onlongclicklistener;import Android.view.view.ontouchlistener;import Android.view.WindowManager ; import Android.view.windowmanager.layoutparams;import Android.widget.linearlayout;import android.widget.Toast; Import Com.jean.lee.floatcamera.r;import Com.jean.lee.floatcamera.util.SecLog; @SuppreSslint ("Newapi") public class Floatcameraservice extends Service implements surfaceholder.callback{private static final String TAG = "Floatcameraservice";p rivate static final String float_cam_service_preferences = "Pref_float_camera_ Service ";p rivate static final String key_preferences_camera_id =" key_preferences_camera_id ";p rivate static final String key_preferences_window_x = "key_preferences_window_x";p rivate static final String key_preferences_window_y = " Key_preferences_window_y ";p rivate static final String key_preferences_window_width_back =" Key_preferences_window_ Width_back ";p rivate static final String key_preferences_window_height_back =" Key_preferences_window_height_back "; private static final String Key_preferences_window_width_front = "Key_preferences_window_width_front";p rivate static Final string key_preferences_window_height_front = "Key_preferences_window_height_front";p rivate static final string Key_preferences_statusbar_height = "Key_preferences_statusbar_height";p RivaTe static final String key_preferences_screen_height = "Key_preferences_screen_height";p rivate static final string Key_ Preferences_camera_numbers = "Key_preferences_camera_numbers"; LinearLayout mfloatlayout; Windowmanager.layoutparams Wmparams; WindowManager mwindowmanager;private surfaceview msvpreview;private surfaceholder mSurfaceHolder;private Camera Mcamera;private Parameters mparameters;private static final int default_camera_id = Camerainfo.camera_facing_back; private static int mcameraid = default_camera_id;private static int mcameranumbers;private sharedpreferences Msharedpreferences;private Boolean blongpressed = false;private Boolean bmultitouchpressed = false;private static int mSt Atusbarheight = 0;private static int mwindowwidth = 270;private static int mwindowheight = 480;private static final int PR Eview_4_3_width = 300;private static final int preview_4_3_height = 400;private static final int preview_16_9_width = 270; private static final int preview_16_9_height = 480; @Overridepublic void OnCreate () {SECLOG.E (TAG, "onCreate"); Super.oncreate ();} @Overridepublic void OnDestroy () {SECLOG.E (TAG, "OnDestroy"); if (mfloatlayout! = null) {Mwindowmanag        Er.removeview (mfloatlayout); }if (null! = Mcamera) {Mcamera.stoppreview (); Mcamera.release (); mcamera = null;} Super.ondestroy ();} @Overridepublic int Onstartcommand (Intent Intent, int flags, int startid) {seclog.e (TAG, "Onstartcommand"); Msharedpreferences = Getsharedpreferences (float_cam_service_preferences, activity.mode_private);        Layoutinflater inflater = Layoutinflater.from (Getapplication ());        Mfloatlayout = (linearlayout) inflater.inflate (r.layout.float_layout, NULL);        Msvpreview = (Surfaceview) Mfloatlayout.findviewbyid (R.id.sv_preview);        Msurfaceholder = Msvpreview.getholder ();        Msurfaceholder.addcallback (this);        Mstatusbarheight = Msharedpreferences.getint (key_preferences_statusbar_height, 0); if (0 = = mstatusbarheight) {mstatusbarheight = GetstatUsbarheight (Getbasecontext ()); Sharedpreferences.editor Editor = Msharedpreferences.edit (); Editor.putint (Key_preferences_statusbar_height,        Mstatusbarheight); Editor.commit (); } opencamera (); Createfloatview (); return Super.onstartcommand (Intent, flags, Startid);} @Overridepublic boolean onunbind (Intent Intent) {seclog.e (TAG, "Onunbind"); return Super.onunbind (Intent);} @Overridepublic ibinder onbind (Intent arg0) {seclog.e (TAG, "Onbind"); return null;}        @SuppressLint ("Inflateparams") private void Createfloatview () {SECLOG.E (TAG, "Createfloatview");          Wmparams = new Windowmanager.layoutparams (); Mwindowmanager = (WindowManager) getapplication (). Getsystemservice (Getapplication ().          Window_service);           Wmparams.type = Layoutparams.type_phone;        Set the picture format, the effect is transparent Wmparams.format = pixelformat.rgba_8888;                Set the floating window not to be focusable (operation that enables operation of other visible windows except floating windows) Wmparams.flags = layoutparams.flag_not_focusable;       Adjust the hover window to display the docked position to the left top   wmparams.gravity = Gravity.left |                 Gravity.top;        In the upper left corner of the screen as the origin, set X, y initial value, relative to gravity wmparams.x = Msharedpreferences.getint (key_preferences_window_x, 0);         Wmparams.y = Msharedpreferences.getint (key_preferences_window_y, 0);          /*//Set the hover window length-width data wmparams.width = WindowManager.LayoutParams.WRAP_CONTENT;         Wmparams.height = windowmanager.layoutparams.wrap_content;*/setoptimizewindowsize ();        Set the hover window length-width data wmparams.width = mwindowwidth;                Wmparams.height = Mwindowheight;        Mwindowmanager.addview (Mfloatlayout, wmparams);                Mfloatlayout.measure (View.MeasureSpec.makeMeasureSpec (0, View.MeasureSpec.UNSPECIFIED), View.measurespec                  . Makemeasurespec (0, View.MeasureSpec.UNSPECIFIED)); Mfloatlayout.setontouchlistener (New Ontouchlistener () {@Overridepublic Boolean OnTouch (View arg0, motionevent event) { Switch (event.getactionmasked ()) {case Motionevent.actioN_DOWN:SECLOG.E (Tag, "OnTouch, Action_down"); break;case motionevent.action_move:seclog.e (Tag, "OnTouch, Action_move if (blongpressed) {//GETRAWX is the coordinate of the touch position relative to the screen, the getx is relative to the button's coordinates wmparams.x = (int) event.getrawx ()-Msvpreview.getmeasu          Redwidth ()/2;        Minus 25 is the height of the status bar WMPARAMS.Y = (int) Event.getrawy ()-msvpreview.getmeasuredheight ()/2-mstatusbarheight; Mwindowmanager.updateviewlayout (Mfloatlayout, wmparams);} Break;case motionevent.action_pointer_down:seclog.e (TAG, "OnTouch, Action_pointer_down"); break;case MOTIONEVENT.ACTION_POINTER_UP:SECLOG.E (TAG, "OnTouch, action_pointer_up"); Break;case motionevent.action_up: SECLOG.E (TAG, "OnTouch, action_up"); if (blongpressed) {blongpressed = false; Sharedpreferences.editor Editor = Msharedpreferences.edit (); Editor.putint (key_preferences_window_x, wmParams.x); Editor.putint (key_preferences_window_y, Wmparams.y); Editor.commit ();} Else{if (Msharedpreferences.getint (Key_preferences_camera_numbers,-2) = = 1) {Toast.maketext (GetBaseContExt (), R.string.toast_only_one_camera, Toast.length_short). Show (); return false;} Switchcamera (); Startpreview ();} BREAK;DEFAULT:SECLOG.E (TAG, "ontouch,event=" +event.getactionmasked ());                return false;}                }); Mfloatlayout.setonlongclicklistener (New Onlongclicklistener () {@Overridepublic Boolean onlongclick (View arg0) { SECLOG.E (TAG, "Onlongclick"); blongpressed = true;                Vibrator Vibrator = (Vibrator) getsystemservice (Context.vibrator_service); vibrator.vibrate (+); return false;}     }); } @Overridepublic void Surfacechanged (Surfaceholder arg0, int arg1, int arg2, int arg3) {seclog.e (TAG, "surfacechanged");} @Overridepublic void surfacecreated (Surfaceholder arg0) {seclog.e (TAG, "surfacecreated"); Startpreview ();} private void Opencamera () {SECLOG.E (TAG, "Opencamera"); if (null = = Mcamera && null! = msharedpreferences) { Mcameraid = Msharedpreferences.getint (key_preferences_camera_id, default_camera_id); MCamera = Camera.open (mCameraId ); mparameters = MCAmera.getparameters ();}} private void Switchcamera () {SECLOG.E (TAG, "Switchcamera"); if (null! = Mcamera) {Mcamera.stoppreview (); mcamera.release (); mcamera = null;} Sharedpreferences.editor Editor = Msharedpreferences.edit (); mcameraid = Msharedpreferences.getint (KEY_PREFERENCES_ camera_id, default_camera_id); if (camerainfo.camera_facing_back = = mcameraid) {Mcameraid = Camerainfo.camera_facing_ Front;mcamera = Camera.open (Mcameraid);} Else{mcameraid = Camerainfo.camera_facing_back;mcamera = Camera.open (Mcameraid);} Editor.putint (key_preferences_camera_id, Mcameraid); Editor.commit (); if (Mcamera! = null) {mparameters = Mcamera.getparameters ();}} private void Startpreview () {SECLOG.E (TAG, "Startpreview"), if (null! = Mcamera) {try {mcamera.setpreviewdisplay ( Msurfaceholder);} catch (IOException e) {e.printstacktrace ();} if (null! = mparameters) {seclog.e (TAG, "Preview Size:" +mparameters.getpreviewsize (). width+ "X" + Mparameters.getpreviewsize (). height);} Mcamera.setdisplayorientation (+); Mcamera.startpreview (); updateWindownsize ();}} @Overridepublic void surfacedestroyed (Surfaceholder arg0) {seclog.e (TAG, "surfacedestroyed");}        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; }public void Setoptimizewindowsize () {SECLOG.E (TAG, "setoptimizewindowsize"); if (Mcameraid = = Camerainfo.camera_ Facing_back) {mwindowwidth = Msharedpreferences.getint (key_preferences_window_width_back, 0); mWindowHeight = Msharedpreferences.getint (Key_preferences_window_Height_back, 0);} Else{mwindowwidth = Msharedpreferences.getint (key_preferences_window_width_front, 0); mWindowHeight = Msharedpreferences.getint (Key_preferences_window_height_front, 0);} if (0 = = Mwindowwidth | | 0 = = mwindowheight) {int screenheight = Msharedpreferences.getint (Key_preferences_screen_height, 0) Float ratio = (float) mparameters.getpreviewsize (). width/(float) mparameters.getpreviewsize (). Height;if (Math.Abs (ratio-16.0/9.0) < 1.0E-6) {//16/9mwindowwidth = Preview_16_9_width;mwindowheight = Preview_16_9_height;if ( ScreenHeight < +) {mwindowwidth = Mwindowwidth*5/6;mwindowheight = MWINDOWHEIGHT*5/6;}} else if (Math.Abs (ratio-4.0/3.0) < 1.0E-6) {mwindowwidth = Preview_4_3_width;mwindowheight = Preview_4_3_height;if ( ScreenHeight < +) {mwindowwidth = Mwindowwidth*4/5;mwindowheight = MWINDOWHEIGHT*4/5;}} Else{mwindowwidth = Preview_4_3_width;mwindowheight = Preview_4_3_height;} SECLOG.E (TAG, "width height:" +mwindowwidth+ "," +mwindowheight); Sharedpreferences.editor Editor =Msharedpreferences.edit (); if (Mcameraid = = Camerainfo.camera_facing_back) {editor.putint (key_preferences_window_ Width_back, Mwindowwidth); Editor.putint (Key_preferences_window_height_back, mwindowheight);} Else{editor.putint (Key_preferences_window_width_front, mwindowwidth); Editor.putint (KEY_PREFERENCES_WINDOW_ Height_front, mwindowheight);} Editor.commit ();}} public void Updatewindownsize () {SECLOG.E (TAG, "updatewindownsize"); Setoptimizewindowsize (); wmparams.width =        Mwindowwidth;                Wmparams.height = Mwindowheight; Mwindowmanager.updateviewlayout (Mfloatlayout, Wmparams);}}

3. Manifest.xml

<?xml version= "1.0" encoding= "Utf-8"? ><manifest xmlns:android= "http://schemas.android.com/apk/res/ Android "package=" Com.jean.lee.floatcamera "android:versioncode=" 1 "android:versionname=" 1.0 "> &LT;USES-SD K android:minsdkversion= "8" android:targetsdkversion= "/> <uses-permission android:name=" and Roid.permission.SYSTEM_ALERT_WINDOW "/> <uses-permission android:name=" Android.permission.CAMERA "/> <        Uses-permission android:name= "Android.permission.VIBRATE"/> <application android:allowbackup= "true" android:icon= "@drawable/ic_launcher" android:label= "@string/app_name" > <activity Android : Name= ".            Mainactivity "android:label=" @string/app_name "Android:theme=" @android: Style/theme.nodisplay "> <intent-filter> <action android:name= "Android.intent.action.MAIN"/> & Lt;category android:name= "Android.Intent.category.LAUNCHER "/> </intent-filter> </activity> <service android:name = ". Service. Floatcameraservice "></service> </application></manifest>

4. 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" >        <surfaceview    android:id= "@+id/sv_preview"    android:visibility= "visible "    android:text=" testtest "        android:layout_width=" match_parent "        android:layout_height=" Match_parent " /></linearlayout>

Float Camera Service