android - Difficulties with intents and several activities -

android - Difficulties with intents and several activities -

i have main activity launch application. in main activity have imageview string of path selected thumbnails gridview in sec activity via intent.

this perhaps sounds unusual , more naturally launch sec activity first gridview, requirement task.

so i'm struggling difficulties how deal string imageid expects intent sec activity? guess have set button open sec activity , gridview menu button, ideas how deal intent thing? appreciate help!

code in main activity:

string imageid = i.getextras().getstring("image"); imageview imageview = (imageview) findviewbyid(r.id.full_image_view); bitmap bitmap =bitmapfactory.decodefile(imageid); imageview.setimagebitmap(bitmap);

open sec activity using startactivityforresult, like:

to start sec activity:

intent = new intent(this, secondactivity.class); startactivityforresult(i, 1);

then handle returned result:

@override protected void onactivityresult(int requestcode, int resultcode, intent data) { if(resultcode == activity.result_ok) { string imageid = data.getextras().getstring("image"); imageview imageview = (imageview) findviewbyid(r.id.full_image_view); bitmap bitmap =bitmapfactory.decodefile(imageid); imageview.setimagebitmap(bitmap); } }

in sec actitivty, when thumbnail selected:

intent intent = new intent(); intent.putextra("image", path); setresult(result_ok, intent); finish();

check http://stackoverflow.com/a/10407371/1434631

android android-intent