android - autoCompleteTextView using getText().toString() get the value is not in the array -

- 

final string[] defaulttask1  = {"abc"," def"," ghi"}; final autocompletetextview autocompletetextview = (autocompletetextview)this.findviewbyid(r.id.autocompletetextview); arrayadapter<string> adapter = new arrayadapter<string>(this, android.r.layout.simple_list_item_1,defaulttask1); autocompletetextview.setthreshold(0); autocompletetextview.setadapter(adapter);

i have method using autocompletetextview.gettext().tostring().while user types words not in array, may happen "null pointer exception"

is there solution can use autocompletetextview, can search user , let user enter text want?

p.s. sorry, i'm not native speaker, there might grammar mistake.

autocompletetextview right solution needs

an editable text view shows completion suggestions automatically while user typing. list of suggestions displayed in drop down menu user can choose item replace content of edit box with.

autocompletetextview allow user type whatever he/she want give suggestions array. 

autocompletetextview.gettext().tostring()

will not return null in case of user types words not in array. return whatever text there right in text view. might crash if gettext().tostring() on empty text view. have check before convert textview string

if(autocompletetextview.gettext()!=null) string textviewstring = autocompletetextview.gettext().tostring()

Comments

Post a Comment

Popular posts from this blog

php - Admin SDK -- get information about the group -

-
please, help. https://www.googleapis.com/admin/directory/v1/groups/106274944935548788283 sending request obtain information group id 1062 ... here link method in google https://developers.google.com/admin-sdk/directory/v1/guides/manage-groups#get_group in response error - 401 unauthorized. oauth authenticate via user has received rights necessary request, included in console admin sdk. authorization successful, there token. not can not understand. if not hard - response. requested information: file_get_contents("https://www.googleapis.com/admin/directory/v1/groups/1062749‌​44935548788283?key=aizasybruhiomdf9nlx9lx3imxwesqmcrnhh4l4"); id group - "106274944935548788283" key applications in case - "aizasybruhiomdf9nlx9lx3imxwesqmcrnhh4l4" error: failed open stream: http request failed! http/1.0 401 unauthorized
Read more

dns - How To Use Custom Nameserver On Free Cloudflare? -

-
i have problem. i own small hosting company. trying add cloudflare site free cdn. problem when sign have change nameservers nameservers. have nameserver dns set through godaddy, how add them cloudflare? main site uses company's nameservers whenever add them site goes offline. when go cloudflare's dns records click on dropdown, click ns, , there's 2 boxes 'name' , 'nameserver'. mean input 'ns1' 'name' , 'ns1.domain.com' 'nameserver'? input server's ip addresses? is there way of accomplishing free version of cloudflare? that impossible. option have custom name servers available on business , enterprise. see https://www.cloudflare.com/plans . also, might mistaken. must change name servers in domain register settings, not on cloudflare.
Read more

Python Error - TypeError: input expected at most 1 arguments, got 3 -

-
can explain why can not use your_name in goal variable? my_name = "bryson" my_age = 29 your_name = input ("what name? ") your_age = input ("what age? ") print ("my name is", my_name,", , am", my_age, "years old.") print ("your name is", your_name,", , are", your_age,".") print("thank buying book,", your_name,"!") goal = input ("what favorite part of book,", your_name, "?") print("awesome!") the error is: goal = input ("what favorite part of book,", your_name, "?") typeerror: input expected @ 1 arguments, got 3 you got error because in fact gave 3 arguments input function when expecting 1 (namely, string prompt). in input ("what favorite part of book,", your_name, "?") ---------------------------------------- , ---------, --- the underlined parts comma-separated arguments: st...
Read more