I have got a tabpager and fragments. And a frament has got a "GridView". I am using a basedapter innerclass in the fragment parent activity.
But when i want to set adapter to my gridview i m getting nullpointerexception. Because GridView variable is always null.how can solve this issue?
Fragment Parent MainActivity OnCreate Method;
GridView gv = (GridView)findViewById(R.id.gridview); // debugging and always null
gv.setAdapter(new AdapterB(this,WallPaperList));
Fragment xml
<!-- TODO: Update blank fragment layout -->
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/gridview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:numColumns="auto_fit"
android:verticalSpacing="10dp"
android:horizontalSpacing="10dp"
android:columnWidth="90dp"
android:stretchMode="columnWidth"
android:gravity="center"
/>
MyGrid.xml (For populate with adapter)
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<ImageView
android:id="@+id/imagepart"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="SeƧ"
android:id="@+id/checkBox" />
</LinearLayout>
You cant acces fragment views like that, becouse they could be not yet in the activity view hierarchy.
You have to add some method to your fragment, like
and in this method in your custom fragment: