[Wish]Make to know the method of google's java APIs easier.

[Theera]

I think about agrahm's reflection lib is more useful,but using with the method of google's java APIs is difficult to find them.

 

[Theera]

How to get all of method from Google's developler

 

[thedesolatesoul]

From the google developers website or the android source code.

Sent from my GT-I9305 using Tapatalk 2

 

[Theera]

Two Strategies are different about using Reflection.

Hi all,

I 've tried to point the difference between the expert man who known both of Java and B4A and the un-expert man who known only B4A in using the reflection Lib. OK! Now! I've 2 strategies in the same program. I hope that you understand me ,why do I think the reflection lib is diffcult for the un-expert man.
(@Klaus ,you are the best man who could explain easy English langauge to me,and always understand that what am I thinking)
@NFOboy ,Thank for the sample. I hope to see the next vesion which hide coding about java in B4A programming.

Best Regards

Theera

 

[agraham]

There is no alternative to knowing about the Android Java APIs, and some Java, if you want to use Reflection. Reflection is intended for expert users to use to get down to the Java API level. No automatic tool to produce Basic4android code is possible. You need to either learn enough to use it for yourself or ask someone who does know do it for you.

 

[IanMc]

I agree with Theera and I like the ideas of:

expert man

un-expert man

with apologies to all female developers

B4a is a higher level language so it annoys the heck out of me when I have to do a lot of work on a single thing to figure out how to incorporate it into my project.

Erel is brilliant, we all know that but is he restricted?

If someone makes a library that he wants to sell then is Erel morally inhibited in incorporating that library's functions into future versions of B4a?

If so then we all suffer

Basic 4 android ... not Complex 4 android

 

[Erel]

If someone makes a library that he wants to sell then is Erel morally inhibited in incorporating that library's functions into future versions of B4a?

No. This is not the case.

 

[pierpa]

If i know how to manage the phonebook in java, will i be able to do it in B4A? Through reflection and such, I mean.

 

[Erel]

It will be easier to create a library from the Java code.

 

[pierpa]

I am talking about five-ten lines of code. I don't want to install eclipse for ten lines of java...

 

[Erel]

Not sure which answer do you want to hear. It is easier to import Java code by converting it to a library. Reflection requires you to understand Java reflection.

 

[agraham]

I am talking about five-ten lines of code.

It depends upon what the code does. For some code it would be trivially simple by reflection, other code might not be possible. Reflection does have limits in the functionality available.

 

[pierpa]

the code from stackoverflow is the following (somehow edited):

ContentResolver cr = this.getContentResolver();

ContentValues values = new ContentValues();

values.clear();

String noteWhere =
   ContactsContract.Data.CONTACT_ID +
   " = ? AND " +
   ContactsContract.Data.MIMETYPE +
   " = ?"; 

String[] noteWhereParams = new String[]{id, 
   ContactsContract.CommonDataKinds.Note.CONTENT_ITEM_TYPE}; 
   // Constant Value: "vnd.android.cursor.item/note"

values.put(CommonDataKinds.Note.NOTE, "NEW NOTE HERE!!!!");

cr.update(ContactsContract.Data.CONTENT_URI, values, noteWhere, noteWhereParams);

Cursor noteCur = cr.query(ContactsContract.Data.CONTENT_URI, null, noteWhere, noteWhereParams, null);

if (noteCur.moveToFirst())
 { 
  String note = noteCur.getString(noteCur.getColumnIndex(ContactsContract.CommonDataKinds.Note.NOTE));
 } 

noteCur.close();

i really don't know if this is good for reflection.

actually i like to work on b4a because i don't like the idea of writing "native" 30 lines of code for an "hello world" button/popup

i want to focus on the functions of my app, but also i tried to launch a sponsorship for a complete contacts library