Click how events are handled and the creation of the registration Form (ii) Implementation of login business logic

Business Flowchart:

Development steps:

• Get user-entered account number and password
• Using if logical statements for business logic judgment
• Give the user the appropriate hints based on the results of the judgment

Code:

1  Public classLoginactivityextendsappcompatactivity {2 3     4     PrivateButton Btnlogin;5     PrivateEditText Txtaccount,txtpassword;6 7 @Override8     protected voidonCreate (Bundle savedinstancestate) {9 Ten         Super. OnCreate (savedinstancestate); One Setcontentview (r.layout.activity_login); A          -          This. Btnlogin = (Button) This. Findviewbyid (R.id.btnlogin);  -          This. Txtaccount = (EditText) This. Findviewbyid (R.id.txtaccount);//get user-entered account number the          This. Txtpassword = (EditText) This. Findviewbyid (R.id.txtpassword);//get the password entered by the user -          -          This. Btnlogin.setonclicklistener (NewViewocl ()); -        +     } -     +  A     Private  classViewoclImplementsview.onclicklistener{ at @Override -          Public voidOnClick (View v) { -             Switch(V.getid ()) { -                  CaseR.id.btnlogin: -String account=Txtaccount.gettext (). toString (). Trim (); -String password=Txtpassword.gettext (). toString (). Trim (); in                     BooleanLogin_flag =false; -  to                     if("admin". Equals (account) && "123". Equals (password)) {//using if logical statements for business logic judgment +login_flag=true; -                     } the  *String message = Login_flag? "Welcome login," +account: "Incorrect account or password";//give the user the appropriate hints based on the results of the judgment $ Toast.maketext (Getapplicationcontext (), Message,toast.length_long). Show ();Panax Notoginseng                      Break; -                  CaseR.id.btnregister: the                      Break; +                 default: Break; A             } the         } +     } -}

Loginactivity.java

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Click how events are handled and the creation of the registration Form (ii) Implementation of login business logic