methods

问题 This question already has answers here : Pass a NSDictionary as parameter to UITapGestureRecognizer (3 answers) Closed 4 years ago . I am newbie too ios and objective c,I know my question is very simple but i found not solution do asked,I am having a method for a static value,now i want to make it dynamic by passing value to that method,So can anybuddy please tell me how to write method with parameter and how to call it.my code is as below: -(void)phoneNumberLabelTap { NSURL *phoneUrl =

问题 This question already has answers here : Pass a NSDictionary as parameter to UITapGestureRecognizer (3 answers) Closed 4 years ago . I am newbie too ios and objective c,I know my question is very simple but i found not solution do asked,I am having a method for a static value,now i want to make it dynamic by passing value to that method,So can anybuddy please tell me how to write method with parameter and how to call it.my code is as below: -(void)phoneNumberLabelTap { NSURL *phoneUrl =

问题 New Question abaut this: Android Studio Refresh Error I want call a Method in a Fragment from another Fragment. I have already tried this: (Tab3Storage) (getSupportFragmentManager().findFragmentById(R.id.tab3storage)).Storagerefresh(); but I have a NullPointerException error. How I can make this or a calling form a activity to the Fragment, because the calling from the Fragment to the Activity works already fine. Code: Main Activity: public void refreshAll(){ Tab3Storage tab3Storage = new

问题 New Question abaut this: Android Studio Refresh Error I want call a Method in a Fragment from another Fragment. I have already tried this: (Tab3Storage) (getSupportFragmentManager().findFragmentById(R.id.tab3storage)).Storagerefresh(); but I have a NullPointerException error. How I can make this or a calling form a activity to the Fragment, because the calling from the Fragment to the Activity works already fine. Code: Main Activity: public void refreshAll(){ Tab3Storage tab3Storage = new

问题 whats up? i'm a beginner to development and everywhere i read 'do not repeat yourself', so i really mind about repeating myself. there is a piece of code that i copied and pasted in every single activity of my app, and i suspect there might be a way of not repeating it - maybe creating a class and calling its methods - but i don't know how to implement it. the code below is what i'm talking about: something i use in my navigation drawer and it's inside the main class of each activity of my

问题 Assignment: Write a JUnit test assuming you have two StringBuffer references named sbOne and sbTwo and you only want it to pass if the two references point to the same StringBuffer object. I want to make sure this actually a good way to approach this assignment. I wrote the assumed method for practice: package StringBufferJUni; public class StringBufferUni { public static void main(String[] args){ } public boolean StringBuff(StringBuffer sbOne, StringBuffer sbTwo){ sbTwo = sbOne; if(sbTwo=

问题 If we create a new method called days_left_in_current_level , what would we need to put in there so that we can count how many days are left in the current_level ? habit.rb def current_level return 0 unless date_started def committed_wdays committed.map do |day| Date::ABBR_DAYNAMES.index(day.titleize) end end def n_days ((date_started.to_date)..Date.today).count do |date| committed_wdays.include? date.wday end - self.real_missed_days end case n_days # 1 - 6 represent the different levels when

问题 The method below works and authenticates a user who has been sent a token-link by email. def login inv = Invitation.find_by(email: params[:email]) if inv && inv.authenticated?(:invitation, params[:id]) @organization = inv.organization unless @organization.nil? render 'profiles/show' and return else flash[:danger] = "Error" redirect_to root_path end else flash[:danger] = "Invalid link" redirect_to root_path end end This method however seems to assume a person ( inv ) can only exist once in the

问题 I am using Ruby on Rails 4 and I have overwritten some default accessor method this way: class Article < ActiveRecord::Base def title self.get_title end def content self.get_content end end self.get_title and self.get_content methods return some computed value and look like the following (note: has_one_association is a :has_one ActiveRecord::Association ) def get_title self.has_one_association.title.presence || read_attribute(:title) end def get_content self.has_one_association.content

问题 I am using Ruby on Rails 4 and I have overwritten some default accessor method this way: class Article < ActiveRecord::Base def title self.get_title end def content self.get_content end end self.get_title and self.get_content methods return some computed value and look like the following (note: has_one_association is a :has_one ActiveRecord::Association ) def get_title self.has_one_association.title.presence || read_attribute(:title) end def get_content self.has_one_association.content