android - How to save the current image from viewpager? -

i have images in viewpager , want user can save current image click on button save image sd card in phone

this demoactivity.java

public class demoactivity extends activity { button play; mediaplayer mp;  public int playstop = 0;  private button extisaw; public void oncreate(bundle ww) {     super.oncreate(ww);     setcontentview(r.layout.activity_main);     play = (button) findviewbyid(r.id.saw);     mp = mediaplayer.create(this, r.raw.raj);     show1();     show2();     play.setonclicklistener(new view.onclicklistener() {             @override             public void onclick(view v) {                 if (playstop == 0) {                     mediahandler(mp, 1);                     mp.start();                     playstop = 1;                  } else {                     mediahandler(mp, 2);                     mp.pause();                     playstop = 0;                 }             }         }); }  private void show2() {     // todo: implement method      this.extisaw =         (button)this.findviewbyid     (r.id.about);     this.extisaw.setonclicklistener     (new onclicklistener() {             @override             public void onclick(view v) {                 finish();             }     });}  public void mediahandler (mediaplayer mp, int e) {     if (e == 1) {         mp.start();     } else {         mp.pause();     } }  public void show1() {     viewpager viewpager = (viewpager) findviewbyid(r.id.view_pager);     imagepageradapter adapter = new imagepageradapter();     viewpager.setadapter(adapter); }  private class imagepageradapter extends pageradapter {     private int[] mimages = new int[]{         r.drawable.a1, r.drawable.a2,         r.drawable.a3, r.drawable.a4,         r.drawable.a5, r.drawable.a6,         r.drawable.a7, r.drawable.a8         , r.drawable.a9, r.drawable.a10, r.drawable.a11, r.drawable.a12         , r.drawable.a13, r.drawable.a14, r.drawable.a15         , r.drawable.a16, r.drawable.a17, r.drawable.a18, r.drawable.a19         , r.drawable.a20, r.drawable.a21, r.drawable.a22, r.drawable.a23         ,         r.drawable.a24, r.drawable.a25,         r.drawable.a26, r.drawable.a27         , r.drawable.a29,         r.drawable.a30, r.drawable.a31         , r.drawable.a32, r.drawable.a33, r.drawable.a34, r.drawable.a35         , r.drawable.a36, r.drawable.a37, r.drawable.a38         , r.drawable.a39, r.drawable.a40, r.drawable.a42         , r.drawable.a43, r.drawable.a44, r.drawable.a45, r.drawable.a46,         r.drawable.a47, r.drawable.a48,         r.drawable.a49         , r.drawable.a51,         r.drawable.a52, r.drawable.a53         , r.drawable.a54, r.drawable.a55, r.drawable.a56         , r.drawable.a58, r.drawable.a59, r.drawable.a60         , r.drawable.a61, r.drawable.a62, r.drawable.a63         , r.drawable.a64, r.drawable.a65, r.drawable.a66, r.drawable.a67, r.drawable.a68, r.drawable.a69           , r.drawable.a70,         r.drawable.a71, r.drawable.a72         , r.drawable.a73, r.drawable.a74, r.drawable.a75         , r.drawable.a76, r.drawable.a77, r.drawable.a78         , r.drawable.a79, r.drawable.a80, r.drawable.a81         , r.drawable.a82, r.drawable.a83, r.drawable.a84, r.drawable.a85, r.drawable.a86, r.drawable.a87          , r.drawable.a88,         r.drawable.a89, r.drawable.a90         , r.drawable.a91, r.drawable.a93         , r.drawable.a94, r.drawable.a95, r.drawable.a96         , r.drawable.a97, r.drawable.a98, r.drawable.a99      };      @override     public int getcount() {         return mimages.length;     }      @override     public boolean isviewfromobject(view view, object object) {         return view == ((imageview) object);     }      @override     public object instantiateitem(viewgroup container, int position) {         context context = demoactivity.this;         imageview imageview = new imageview(context);         int padding = context.getresources().getdimensionpixelsize(             r.dimen.padding_medium);         imageview.setpadding(padding, padding, padding, padding);         imageview.setscaletype(imageview.scaletype.center_inside);         imageview.setimageresource(mimages[position]);         ((viewpager) container).addview(imageview, 0);         return imageview;     }      @override     public void destroyitem(viewgroup container, int position, object object) {         ((viewpager) container).removeview((imageview) object);     } } 

}

i add code activity class try this..

public class demoactivity extends activity { button play; mediaplayer mp; private int[] mimages = new int[]{         r.drawable.a1, r.drawable.a2,         r.drawable.a3, r.drawable.a4,         r.drawable.a5, r.drawable.a6,         r.drawable.a7, r.drawable.a8         , r.drawable.a9, r.drawable.a10, r.drawable.a11, r.drawable.a12         , r.drawable.a13, r.drawable.a14, r.drawable.a15         , r.drawable.a16, r.drawable.a17, r.drawable.a18, r.drawable.a19         , r.drawable.a20, r.drawable.a21, r.drawable.a22, r.drawable.a23         ,         r.drawable.a24, r.drawable.a25,         r.drawable.a26, r.drawable.a27         , r.drawable.a29,         r.drawable.a30, r.drawable.a31         , r.drawable.a32, r.drawable.a33, r.drawable.a34, r.drawable.a35         , r.drawable.a36, r.drawable.a37, r.drawable.a38         , r.drawable.a39, r.drawable.a40, r.drawable.a42         , r.drawable.a43, r.drawable.a44, r.drawable.a45, r.drawable.a46,         r.drawable.a47, r.drawable.a48,         r.drawable.a49         , r.drawable.a51,         r.drawable.a52, r.drawable.a53         , r.drawable.a54, r.drawable.a55, r.drawable.a56         , r.drawable.a58, r.drawable.a59, r.drawable.a60         , r.drawable.a61, r.drawable.a62, r.drawable.a63         , r.drawable.a64, r.drawable.a65, r.drawable.a66, r.drawable.a67, r.drawable.a68, r.drawable.a69           , r.drawable.a70,         r.drawable.a71, r.drawable.a72         , r.drawable.a73, r.drawable.a74, r.drawable.a75         , r.drawable.a76, r.drawable.a77, r.drawable.a78         , r.drawable.a79, r.drawable.a80, r.drawable.a81         , r.drawable.a82, r.drawable.a83, r.drawable.a84, r.drawable.a85, r.drawable.a86, r.drawable.a87          , r.drawable.a88,         r.drawable.a89, r.drawable.a90         , r.drawable.a91, r.drawable.a93         , r.drawable.a94, r.drawable.a95, r.drawable.a96         , r.drawable.a97, r.drawable.a98, r.drawable.a99      };  public int playstop = 0;  private button extisaw; private imagepageradapter adapter; private viewpager viewpager; public void oncreate(bundle ww) {     super.oncreate(ww);     setcontentview(r.layout.activity_main);     play = (button) findviewbyid(r.id.saw);     mp = mediaplayer.create(this, r.raw.raj);     show1();     show2();     play.setonclicklistener(new view.onclicklistener() {             @override             public void onclick(view v) {                 if (playstop == 0) {                     mediahandler(mp, 1);                     mp.start();                     playstop = 1;                  } else {                     mediahandler(mp, 2);                     mp.pause();                     playstop = 0;                 }             }         }); }  private void show2() {     // todo: implement method      this.extisaw =         (button)this.findviewbyid     (r.id.about);     this.extisaw.setonclicklistener     (new onclicklistener() {             @override             public void onclick(view v) {                 finish();             }     });    }  public void mediahandler (mediaplayer mp, int e) {     if (e == 1) {         mp.start();     } else {         mp.pause();     } }   private void saveimageintosdcard(bitmap bitmap) {     file filename = null;     fileoutputstream out = null;     string destination;      try {         string path = environment.getexternalstoragedirectory().tostring();         destination ="/destinationfolder name/";   file sdcarddirectory = new file(environment.getexternalstoragedirectory(),destination);     filename = new file(sdcarddirectory, system.currenttimemillis()+"image.jpg");                    out = new fileoutputstream(filename);                 bitmap.compress(bitmap.compressformat.jpeg, 100,                         out);                   mediastore.images.media.insertimage(getcontentresolver(), filename.getabsolutepath(),                         filename.getname(), filename.getname());           }  catch (exception e) {         e.printstacktrace();     } {         if (out != null) {             try {                 out.flush();                 out.close();             } catch (ioexception e) {                 // todo auto-generated catch block                 e.printstacktrace();             }         }     } }  public void show1() {      viewpager = (viewpager) findviewbyid(r.id.view_pager);      adapter = new imagepageradapter();     viewpager.setadapter(adapter);     button b1 = (button) findviewbyid(r.id.save);     b1.setonclicklistener(new onclicklistener() {          @override         public void onclick(view v) {             int position=viewpager.getcurrentitem();             int selectedimage=mimages[position];             bitmap largeicon = bitmapfactory.decoderesource(getresources(),selectedimage);             saveimageintosdcard(largeicon);         }     }); }  private class imagepageradapter extends pageradapter {      @override     public int getcount() {         return mimages.length;     }      @override     public boolean isviewfromobject(view view, object object) {         return view == ((imageview) object);     }      @override     public object instantiateitem(viewgroup container, int position) {         context context = demoactivity.this;         imageview imageview = new imageview(context);         int padding = context.getresources().getdimensionpixelsize(             r.dimen.padding_medium);         imageview.setpadding(padding, padding, padding, padding);         imageview.setscaletype(imageview.scaletype.center_inside);         imageview.setimageresource(mimages[position]);         ((viewpager) container).addview(imageview, 0);         return imageview;     }      @override     public void destroyitem(viewgroup container, int position, object object) {         ((viewpager) container).removeview((imageview) object);     } } }