Android unknowingly candid others feature realization (mobile phone off still photographed)

The previous article I wrote the Android steal feature, then you will find that there is a candid feature

The effect is as follows:

In fact, candid and steal the way the implementation is the same, are used to WindowManager to draw the principle of small desktop control. Then I won't say more ...

First, we need a surfaceview:

<?xml version="1.0" encoding="utf-8"?><LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/small_window_layout"    android:layout_width="1dip"    android:layout_height="1dip"    >    <FrameLayout        android:id="@+id/percent"        android:layout_width="fill_parent"        android:layout_height="fill_parent"        android:gravity="center"        /></LinearLayout>

Second, then the operation is to produce this small control:

    public PhotoWindowSmallView(Context context) {        super(context);        windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);        LayoutInflater.from(context).inflate(R.layout.float_window_small, this);        View view = findViewById(R.id.small_window_layout);        viewWidth = view.getLayoutParams().width;        viewHeight = view.getLayoutParams().height;//        SurfaceView percentView = (SurfaceView) findViewById(R.id.percent);//        percentView.setText(MyWindowManager.getUsedPercentValue(context));    }    /**     * 将小悬浮窗的参数传入，用于更新小悬浮窗的位置。     *     * @param params 小悬浮窗的参数     */    public void setParams(WindowManager.LayoutParams params) {        mParams = params;    }

Third, the desktop control has, of course, the following is added to the desktop using WindowManager:

     /** * Create a small suspended window.         The initial position is the right middle position of the screen.         * * @param context must be the context for the application.            */public void Createsmallwindow (context context) {Mcontext = context;            WindowManager WindowManager = Getwindowmanager (context);            int screenwidth = Windowmanager.getdefaultdisplay (). GetWidth ();            int screenheight = Windowmanager.getdefaultdisplay (). GetHeight ();                if (Smallwindow = = null) {Smallwindow = new Photowindowsmallview (context);                    if (Smallwindowparams = = null) {smallwindowparams = new layoutparams ();                    Smallwindowparams.type = Layoutparams.type_phone;                    Smallwindowparams.format = pixelformat.rgba_8888; Smallwindowparams.flags = Layoutparams.flag_not_touch_modal |                    layoutparams.flag_not_focusable; smallwindowparams.gravity = Gravity.left |                    Gravity.top; SmalLwindowparams.width = Photowindowsmallview.viewwidth;                    Smallwindowparams.height = Photowindowsmallview.viewheight;                    Smallwindowparams.x = ScreenWidth;                Smallwindowparams.y = SCREENHEIGHT/2;                } smallwindow.setparams (Smallwindowparams);                Windowmanager.addview (Smallwindow, smallwindowparams);            Msurfaceview = (framelayout) Smallwindow.findviewbyid (r.id.percent);         }}/** * Remove the small hover window from the screen.         * * @param context must be the context for the application. */public void Removesmallwindow (context context) {if (Smallwindow! = null) {Windowmana                Ger WindowManager = Getwindowmanager (context);                Windowmanager.removeview (Smallwindow);            Smallwindow = null; }        }

Four, this time we need surfaceview, then, how to operate in the background? Naturally, I thought of the service.

To perform the operation of a desktop control in a service:

 @Override    public int onStartCommand(Intent intent, int flags, int startId) {        myWindowManager = new MyPhotoWindowManager();        createWindow();        return super.onStartCommand(intent, flags, startId);    }    @Override    public void onDestroy() {        super.onDestroy();    }    private void createWindow() {        // 当前界面是桌面，且没有悬浮窗显示，则创建悬浮窗。        myWindowManager.removeSmallWindow(getApplicationContext());        myWindowManager.createSmallWindow(getApplicationContext());    }

V. To bind the service in the activity, take a picture of the operation

 private class MyServiceConn implements ServiceConnection {        @Override        public void onServiceConnected(ComponentName name, IBinder service) {            // TODO Auto-generated method stub            binder = (PhotoWindowService.myServiceBinder) service;            if (isVedio) {                binder.startCarema();            } else {                binder.stopCarema();            }        }        @Override        public void onServiceDisconnected(ComponentName name) {            // TODO Auto-generated method stub        }    }

Vi. controlling the start and end of photos in Mywindowmanager in the service

   public class myServiceBinder extends Binder {        public void startCarema() {            myWindowManager.startCarema();        }        public void stopCarema() {            myWindowManager.stopCarema();        }    }

Vii. opening or terminating the photo operation at Myphotowindowmanager

  public void startCarema() {        itt = InitTimetoTakePic.getInstance(mContext);        itt.initView(mSurfaceview);        itt.start();    }    public void stopCarema() {        if (itt != null)            itt.releaseCarema();    }

Viii. the related processing of photographing in inittimetotakepic

Package Com.ddv.www.candidphotodemo;import Android.annotation.targetapi;import Android.app.activity;import Android.content.context;import Android.content.intent;import Android.content.pm.packagemanager;import Android.hardware.camera;import Android.hardware.camera.autofocuscallback;import Android.hardware.camera.picturecallback;import Android.os.build;import Android.os.handler;import Android.os.message;import android.widget.framelayout;import Java.io.file;import java.io.FileOutputStream;/** * Set timed camera function * * @author <p> * Create timed Photo task * Cameratype Camera * resolutionstring Resolution * TVSA   Velocation Save Address * etextension Expand name * Camerastart, start shooting time * cameranumber, number of shots * camerastop    Shoot number */public class Inittimetotakepic {private static inittimetotakepic minstance;    private static int cameratype = 1;    Context Mcontext;    Static Framelayout Msurfaceviewframe;    private static Camera Mcamera; private static Camerapreview MpreView    private static String resolutionstring = "1920x1080";    private static String SaveLocation = Apputils.getsdcardpath ();    private static String Extension = "JPG";    private static String Camerastart = "1";    private static String Cameranumber = "1";    private static String Camerastop = "10";    private static int number = 0;    private static Boolean clearvoice = false;    Private Intent Intent;    Private Inittimetotakepic (Context context) {This.mcontext = context;        } public synchronized static Inittimetotakepic getinstance (context context) {minstance = null;        Minstance = new Inittimetotakepic (context);    return minstance;    } public void Initview (Framelayout surfaceviewframe) {msurfaceviewframe = Surfaceviewframe; }/** * Start timed photo and upload function */Handler Mhandler = new Handler () {@Override public void handlemessage ( Message msg) {switch (msg.what) {case 1:loguTILS.V ("Start taking photos");                    Initcarema ();                Break                        Case 2:if (Mcamera = = null) {Releasecarema ();                        Number = 0;                    Mhandler.removecallbacksandmessages (NULL); } else {if (number < integer.valueof (camerastop)) {MCAMERA.AUTOFOCU S (new Autofocuscallback () {@Override public void ONAUTOFOCU S (Boolean success, Camera camera) {//capture picture from camera L                                    OGUTILS.V ("Auto Focus 111" + success);                                        try {mcamera.takepicture (null, NULL, mpicture);                                    Mhandler.sendemptymessagedelayed (1, integer.valueof (cameranumber) * 1000);       } catch (Exception e) {                                 Releasecarema ();                                    Mhandler.removecallbacksandmessages (NULL);                        }                                }                            });                            } else {Releasecarema ();                            Number = 0;                        Mhandler.removecallbacksandmessages (NULL);            }} break;    }        }    };  public void Start () {mhandler.sendemptymessagedelayed (1, 1 *); start camera after//7s} private void Initcarema ()        {logutils.v ("Initcarema");            if (Mcamera = = null) {LOGUTILS.V ("camera=null");            Mcamera = Getcamerainstance ();            Mpreview = new Camerapreview (Mcontext, Mcamera);            Msurfaceviewframe.removeallviews ();        Msurfaceviewframe.addview (Mpreview); } logutils.v (Mcamera = = null?) "Mcamera is Null ":" Mcamera is not null ");        Mcamera.startpreview (); Mhandler.sendemptymessagedelayed (2, integer.valueof (camerastart) * 1000); 3s after photo}/** * Detects if the device exists camera hardware */Private Boolean Checkcamerahardware (context context) {if (con Text.getpackagemanager (). Hassystemfeature (Packagemanager.feature_camera)) {//Presence RE        Turn true;        } else {//There is no return false; }}/** * Open a camera */@TargetApi (build.version_codes.        JELLY_BEAN_MR1) public static camera Getcamerainstance () {camera c = null;            try {c = camera.open (Cameratype);            C.setdisplayorientation (90);            Camera.parameters mparameters = C.getparameters ();            Shutter sound c.enableshuttersound (clearvoice);            Can be used to get the currently supported photo size, then//list<size> ms = Mparameters.getsupportedpicturesizes (); Mparameters.setpicturesize (Ms.get (0). WIdth, Ms.get (0). height);            Default maximum photo Capture maximum resolution string[] Xes = Resolutionstring.split ("x");            Logutils.i ("ms.get (0) .width==>" +ms.get (0). width);            Logutils.i ("ms.get (0) .height==>" +ms.get (0). height);            Logutils.i ("integer.valueof (xes[0) ==>" +integer.valueof (Xes[0]));            Logutils.i ("integer.valueof (xes[1) ==>" +integer.valueof (Xes[1]));  Mparameters.setpicturesize (Integer.valueof (Xes[0]), integer.valueof (xes[1]));        Default maximum photo c.setparameters (mparameters) for maximum resolution;        } catch (Exception e) {logutils.v ("Failed to open camera failed");    } return C; } private Picturecallback mpicture = new Picturecallback () {@Override public void Onpicturetaken (byte[]            data, Camera camera) {//Get JPEG picture and save on SD card String path = SaveLocation;            File DIRF = new file (path);            if (!dirf.exists ()) {dirf.mkdirs (); } File PICTUrefile = new File (path + "/" + system.currenttimemillis () + "." + extension);//extension try {Fileou                Tputstream fos = new FileOutputStream (picturefile);                Fos.write (data);                Fos.close ();                LOGUTILS.V ("Save diagram Success");                number++;                Intent = new Intent ();                Intent.setaction ("Camerafragment.start");                Intent.putextra ("number", number);            Mcontext.sendbroadcast (Intent);                } catch (Exception e) {logutils.v ("Save picture Failed");            E.printstacktrace ();        } releasecarema ();    }    };            public void Releasecarema () {if (Mcamera! = null) {Mcamera.stoppreview ();            Mcamera.release ();        Mcamera = null; }    }}

demo:http://download.csdn.net/download/huangxiaoguo1/9711899

What is the shortage, hope everyone advice, thank you ....

Android unknowingly candid others feature realization (mobile phone off still photographed)