The getView method in the ListView adapter is always called. listviewgetview

The getView method in the ListView adapter is always called. listviewgetview

When the height of the ListView is not fixed (for example, if the ListView is rewritten to an automatically scalable ListView) or the ListView is nested in the SrollView (the height is not fixed, if an item element in listView is changed, all items call the getView () method.

This OKMust use LinearLayout to set ListView(The specific reason is unclear)

    <ScrollView        android:layout_width="match_parent"        android:layout_height="400dp" >        <LinearLayout            android:layout_width="match_parent"            android:layout_height="400dp" >            <ListView                android:id="@+id/item_list"                android:layout_width="match_parent"                android:layout_height="400dp" />        </LinearLayout>    </ScrollView>

This will always call getview

    <ScrollView        android:layout_width="match_parent"        android:layout_height="400dp" >        <RelativeLayout            android:layout_width="match_parent"            android:layout_height="400dp" >            <ListView                android:id="@+id/item_list"                android:layout_width="match_parent"                android:layout_height="400dp" />        </RelativeLayout>    </ScrollView>

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