Let’s have a look at some of them:
Profile - Chungtheng - Ionic Forum
I see 3 posts about the same topic in a 2 hour time span. That is impolite - I for example (and whole Europe with me) were sleeping at that time. I don’t really want to help impolite people. (In total there seem to be 5 topics about the same problem - 3 of the topics are in the wrong category.)
So, what is in the posts?
You mention a “document” but I have no idea what you are talking about, the rest of the post also is not really clear to me. You include no ionic info output and don’t even link to the Ionic Native plugin you are using. Should I guess or research that myself now?
This one includes ionic info, but is missing everything else - no link to Ionic Native Plugin, no link to Cordova plugin, no code, no information about what you tried.
Again different stuff missing - mostly your code, ionic info, the actual Ionic Native plugin you are using.
Post that links to a docs page. The answer to that post it the content of the docs page. But as this is posted in the wrong category, people ignore it.