Convert Android Java code to Xamarin C# -


i problem converting code native android java code xamarin c# android code

i have class shall me delay start in custom autocomletetextview searching:

public class delayautocompletetextview : autocompletetextview {     public static context _context {get; set;}     private static android.util.iattributeset _attrs { get; set; }  public delayautocompletetextview(context context, android.util.iattributeset attrs) : base(context, attrs) {     _context = context;     _attrs = attrs; }  private static int message_text_changed = 100; private static int default_autocomplete_delay = 750;  private int mautocompletedelay = default_autocomplete_delay; private progressbar mloadingindicator;  public class mhandler : handler {     public override void handlemessage(message msg)     {         delayautocompletetextview.base.performfiltering((java.lang.icharsequence)msg.obj, msg.arg1);     } }  public void setloadingindicator(progressbar progressbar) {     mloadingindicator = progressbar; }  public void setautocompletedelay(int autocompletedelay) {     mautocompletedelay = autocompletedelay; }  protected override void performfiltering(java.lang.icharsequence text, int keycode) {     if (mloadingindicator != null)     {         mloadingindicator.visibility = viewstates.visible;     }      mhandler.removemessages(message_text_changed);     mhandler.sendmessagedelayed(mhandler.obtainmessage(message_text_changed, text), mautocompletedelay); }  public override void onfiltercomplete(int count) {     if (mloadingindicator != null)     {         mloadingindicator.visibility = viewstates.gone;     }      base.onfiltercomplete(count); }}

but have 3 error messages:

  • 1) delayautocompletetextview.base.performfiltering((java.lang.icharsequence)msg.obj, msg.arg1);

  • 2) mhandler.removemessages(message_text_changed);

  • 3) mhandler.sendmessagedelayed(mhandler.obtainmessage(message_text_changed, text), mautocompletedelay);

original code on java copied github

please me convert. sorry bad english )

the first error happens because unlike java, nested classes in c# not able access parent class's this pointer separate entity.

instead of making mhandler class, suggest make variable , use handler(action<message>) constructor create handler can access members of delayautocompletetextview.

private readonly handler mhandler = new handler(delegate (message msg) {     base.performfiltering((java.lang.icharsequence)msg.obj, msg.arg1); });

the second , third errors simple spelling mistakes.

the xamarin equivalents of removemessages, sendmessagedelayed, obtainmessage removemessages, sendmessagedelayed, obtainmessage, following pascalcase method naming convention outlined microsoft c# coding style guide. all xamarin base class libraries , generated bindings java libraries follow convention.

i suggest change name of fields msomefield somefield following ms c# coding style guide.


Comments

Post a Comment

Popular posts from this blog

jOOQ update returning clause with Oracle -

according http://www.jooq.org/doc/3.8/manual/sql-building/sql-statements/update-statement/ jooq doesn't support returning clause in update statements databases except firebird , postgres. does know, still correct oracle jooq? according oracle's documentation, oracle db supports returning clase delete, insert, or update statements. incorrect manual you're right - manual wrong , should fixed: https://github.com/jooq/jooq/issues/5470 single row update returning jooq 3.8 added support single row update .. returning statements. internally, uses callablestatement , pl/sql block of form: begin update "my_table" set "my_table"."column" = 'xyz' "my_table"."id" = 1 returning "my_table"."id", "my_table"."column" ?, ?; ? := sql%rowcount; end; the relevant issue is: https://github.com/jooq/jooq/issues/5190 multi row update returning a...
Read more

java - Warning equals/hashCode on @Data annotation lombok with inheritance -

i have entity inherits other. on other hand, i'm using lombok project reduce boilerplate code, put @data annotation. annotation @data inheritance produces next warning: generating equals/hashcode implementation without call superclass, though class not extend java.lang.object. if intentional, add '@equalsandhashcode(callsuper=false)' type. is advisable add annotation @equalsandhashcode (callsuper = true) or @equalsandhashcode (callsuper = false) ? if not added, 1 callsuper=false or callsuper=true ? the default value false . 1 if don't specify , ignore warning. yes, recommended add @equalsandhashcode annotation on @data annotated classes extend else object. cannot tell if need true or false , depends on class hierarchy, , need examined on case-by-case basis. however, project or package, can configure in lombok.config call super methods if not direct subclass of object. lombok.equalsandhashcode.callsuper = call for configuration system ...
Read more

java - BasicPathUsageException: Cannot join to attribute of basic type -

i using java 8 jpa (hibernate 5.2.1). have clause works perfectly, until introduce clause make use foreign key table values too. i getting following error: basicpathusageexception: cannot join attribute of basic type i think problem related fact have join table, , not sure how create join using join table. employee - employee_category - category model (employee.java): @manytomany(cascade = cascadetype.all, fetch=fetchtype.eager) @jointable ( name="employee_category", joincolumns={ @joincolumn(name="emp_id", referencedcolumnname="id") }, inversejoincolumns={ @joincolumn(name="cat_id", referencedcolumnname="id") } ) private set<category> categories; model (category.java): @id private string id; jpa when introduce following code, fails error above (i think problem new piece of code): join<t, category> category = from.join("id"); predicates.add(criteriabuilder.like(category....
Read more