atry | Asynchronous try-catch based on Node.JS domain module | Runtime Evironment library

THIS IS MY XML

I defined my recycler view and I'm still getting a null pointer exception when I try invoking methods on it, but it was working before

My layout is activity_main.xml

in my app i trying to get tracks per album but it doesnt show nothing in the recyclerView. Although,i just tried with a textView on the activity it appears on the Activity.i am unable to find mistake.please give me a solution.i did spend time on stackoverFlow but couldnt find solution.when i click on list it should give me tracks but it shows nothing.

I am new to android and is trying to make a small project. And for making the homepage I have used android CardView. here is the homepage view link I don't know how to move from main activity to second activity. So, pls help me out in writing the java part.

suppose, I click on the month card view, I must go to another activity. how to do it? My MainActivity.xml code is as follow:

I am filtering my extJS store.

grid.store.filter(this.myFilterValue);

My store is filtering. Now the problem is if this.myFilterValue = "ATR" then it suppose to filter value which having only "ATR" value. But in my case it is filtering all the value which have ATR character like ATRX,ATRY,ATRZ. How to overcome from this.

Didn't find class "support.v4.view.ViewPager" on path: DexPathList[[zip file "/data/app/com.example.prakashgurung.atry-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example.prakashgurung.atry-1/lib/arm, /system/lib, /vendor/lib]]

Here is my xml file