android - The value passing through Intent returns null some time -

i passing values through intent, in case value passed through returns null. value not null till sets on intent. here code setting intent.

intent propertyintent = new intent(mcontext , someactivity.class); propertyintent.putextra(start_mode_tag,mode_edit_recording); propertyintent.putextra(activity_mode_tag, "dm"); propertyintent.addflags(intent.flag_activity_reorder_to_front); propertyintent.putparcelablearraylistextra("det_list", detlist); mcontext.startactivity(propertyintent); 

here code used fetch intent values

passedmodename = getintent().getstringextra(dmapplication.start_mode_tag); 

only start_mode_tag value returns null rest returns correctly. tried setting in onnewintent() also. no use.

constants used in it

public static final string activity_mode_tag="activity_mode"; public static final string start_mode_tag="startmode"; public static final string mode_new_recording="new"; public static final string mode_edit_recording="edit"; public static final string mode_review_recording="review"; public static final string mode_copy_recording="copy"; public static final string mode_launch_recording="launch"; 

you should extras data in following way.

bundle extras = getintent().getextras(); selectedgroupid = extras.getstring(dmapplication.start_mode_tag);