Android screenshot capture Bullet Box Alertdialog

1: Effect

2: Permissions

   <USES-SDK        android:minsdkversion= "android:targetsdkversion="        />    <uses-permission Android:name= "Android.permission.READ_EXTERNAL_STORAGE"/>    <uses-permission android:name= " Android.permission.MOUNT_UNMOUNT_FILESYSTEMS "        tools:ignore=" protectedpermissions "/>    < Uses-permission android:name= "Android.permission.WRITE_EXTERNAL_STORAGE"/>

　　

3: implementation

public class Mainactivity extends Appcompatactivity {private static final String TAG = "Taga";    int x = 1;    private static final int request_media_projection = 1;    Private Mediaprojectionmanager Projectionmanager;    Boolean screencapture = false; Handler Mhandler = new Handler () {@TargetApi (build.version_codes.            LOLLIPOP) @Override public void Handlemessage (Message msg) {super.handlemessage (msg);        TakeScreenshot2 ();    }    };        @Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);        Setcontentview (R.layout.activity_main);        Button btn = Findviewbyid (R.ID.BTN);                Btn.setonclicklistener (New View.onclicklistener () {@Override public void OnClick (View v) {                X=1;                Showalertdialog ();            Mhandler.sendemptymessagedelayed (100,1000);    }        }); } @TargetApi (Build.version_codes. LOLLIPOP)    @RequiresApi (API = Build.version_codes. KITKAT) @Override protected void Onactivityresult (int requestcode, int resultcode, Intent data) {if (Request Code = = request_media_projection) {try {final int mwidth = Getwindowmanager (). GETDEFAULTDISPL                Ay (). getwidth ();                Final int mheight = Getwindowmanager (). Getdefaultdisplay (). GetHeight ();                Final ImageReader Mimagereader = imagereader.newinstance (Mwidth, Mheight, pixelformat.rgba_8888, 2);                Displaymetrics metrics = new Displaymetrics ();                Getwindowmanager (). Getdefaultdisplay (). Getmetrics (metrics);                int mscreendensity = metrics.densitydpi;                Final Mediaprojection mprojection = projectionmanager.getmediaprojection ( -1, data); Final Virtualdisplay Virtualdisplay = Mprojection.createvirtualdisplay ("Screen-mirror", Mwidth, MHe ight, Mscreendensity, displaymanager.virtual_display_flag_auto_mIrror, Mimagereader.getsurface (), NULL, NULL);                    Mimagereader.setonimageavailablelistener (New Imagereader.onimageavailablelistener () {@Override                            public void onimageavailable (ImageReader reader) {if (x! = 1) {                        Return } else {try {/** * minus--->MP Rojection.stop ();                                There will be a constant phenomenon */x = 2;                                Mprojection.stop ();                                Image image = Mimagereader.acquirelatestimage ();                                Final image.plane[] planes = Image.getplanes ();                                Final Bytebuffer buffer = Planes[0].getbuffer ();                                int offset = 0; int pixelstride = Planes[0].getpixelstride ();                                int rowstride = Planes[0].getrowstride ();                                int rowpadding = Rowstride-pixelstride * mwidth;                                Bitmap Bitmap = bitmap.createbitmap (Mwidth + rowpadding/pixelstride, mheight, Bitmap.Config.ARGB_8888);                                Bitmap.copypixelsfrombuffer (buffer);                                Image.close (); Save path String pathimage = Environment.getexternalstoragedirectory (). GetPath () + File.separ                                Ator + "AA" + file.separator;                                String Nameimage = pathimage+ "example. png";  if (bitmap! = null) {try {File fileimage = new                                        File (Nameimage);                                if (!fileimage.exists ()) {fileimage.createnewfile ();        } FileOutputStream out = new FileOutputStream (fileimage); if (out! = null) {bitmap.compress (Bitmap.compressformat .                                            PNG, +, out);                                            Out.flush ();                                            Out.close ();                                            Toast.maketext (Mainactivity.this, "Picture saved successfully!", Toast.length_short). Show ();                                            Intent media = new Intent (intent.action_media_scanner_scan_file);                                            Uri Contenturi = Uri.fromfile (fileimage);                                            Media.setdata (Contenturi);                                            Getapplicationcontext (). Sendbroadcast (media);                                        Screencapture = false; }} catch (FilenotfOundexception e) {e.printstacktrace ();                                    } catch (IOException e) {e.printstacktrace ();  }} else {Toast.maketext (mainactivity.this, "Cannot get                                Phone s screen, Toast.length_short). Show ();                            }} catch (Exception e) {e.printstacktrace ();            }}}}, NULL);            } catch (Exception e) {e.printstacktrace (); }}}/** * Function call */@RequiresApi (API = Build.version_codes. LOLLIPOP) public void TakeScreenshot2 () {try {Projectionmanager = (Mediaprojectionmanager) getsyste            Mservice (Context.media_projection_service); StartactivityforresUlt (Projectionmanager.createscreencaptureintent (), request_media_projection);        } catch (Exception e) {e.printstacktrace ();        }} public void Showalertdialog () {Alertdialog.builder localbuilder = new Alertdialog.builder (this);        Localbuilder.settitle ("Simple dialog box");        Localbuilder.seticon (R.mipmap.ic_launcher); Localbuilder.setmessage ("hint message?        "); Localbuilder.setpositivebutton ("OK", new Dialoginterface.onclicklistener () {public void OnClick (DIALOGINTERFAC            e paramanonymousdialoginterface, int paramanonymousint) {/** * OK operation * */        }        }); Localbuilder.setnegativebutton ("Cancel", new Dialoginterface.onclicklistener () {public void OnClick (DIALOGINTERFAC            e paramanonymousdialoginterface, int paramanonymousint) {/** * OK operation * */        }        });        /*** * Set the Click Back key does not disappear * */localbuilder.setcancelable (FALSE). Create ();    Localbuilder.show (); }}

　　

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