How do I navigate through and understand the documentation in Android? -


i got 1 piece of code study , puzzled long time because tried make own version of , broke tried commenting original code step step see when failed , gave me null pointer in getview method after commented declaration of 1 variable used. wasn't seeing method being called anywhere , searched lot answer until found this:

when getview() method of listview called?

it esentially says getview getts called whenever item passed adapter through setadapter method.

i on view docs, adapter docs, inflater, etc , couldn't find piece of information tell me happened, not setadapter method says behavior. documentation error or there general guideline i'm not following correctly?

i think going in right direction, if breaking code , hitting road blocks. best resource study api's android android developer site itself

http://developer.android.com/reference/android/widget/adapter.html

plus [android] tagged questions on stackoverflow.


Comments

Post a Comment

Popular posts from this blog

php - Calling a template part from a post -

i include iframe within post in wordpress. located inside content of post, meaning cannot in post template file, otherwise either before or after. i'd add facebook plugin within posts: <div id="socialwrap"><div class="fb-like" data-href="http://onlinearizonahomes.info" data-send="true" data-width="450" data-show-faces="true" data-font="arial"></div></div> i thinking of calling template part within post <?php get_template_part( 'social' ); ?> cannot use php within post without plugin (i'd avoid using plugin this). an alternative using javascript create html in post, seems unnecessary use of javascript. what best way add html within wordpress post? you can use shortcode. add functions.php function cudjex_fbshare( $atts, $content = null ) { global $post; $link = get_permalink($post->id); return '<div id="socialwrap...
Read more

Firefox SVG shape not printing when it has stroke -

Image
i having issue svg shapes have stroke , trying them print in firefox. this simplest example: <svg xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink"> <rect x="0" y="0" rx="15" ry="15" width="300" height="400" style="stroke:black;stroke-width:5;" fill="black" /> <circle id="firstcircle" cx="50" cy="50" r="30" stroke="black" stroke-width="2" fill="white" style="opacity:0.75;"/> <circle id="secondcircle" cx="50" cy="150" r="30" fill="white" style="opacity:0.75;"/> </svg> when try , print first shape 1 of 2 things: it not show @ all it shows off center in bounding box. the second shape no stroke shows expected, expected. when displaying on scre...
Read more

How to mention the localhost in android -

i trying call localhost in android application. unfortunately not possible used several methods emulator local host http://10.0.2.2/android/dbconnection.php and network ip address http://192.168.1.xx/android/dbconnection.php also http://localhost:8080/android/dbconnection.php but nothing connected localhost. purpose refer stackoverflow answers not working i facing same problem when worked on localhost. referred stackoverflow answer got solution create new emulator works fine in new emulator.
Read more