プロジェクトでSwipelistviewを使用しようとしていますが、次のように NullPointer がスローされます。
java.lang.NullPointerException
at com.fortysevendeg.swipelistview.SwipeListViewTouchListener.setFrontView(SwipeListViewTouchListener.java:138)
at com.fortysevendeg.swipelistview.SwipeListViewTouchListener.onTouch(SwipeListViewTouchListener.java:731)
at com.fortysevendeg.swipelistview.SwipeListView.onInterceptTouchEvent(SwipeListView.java:630)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1852)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2209)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1910)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2209)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1910)
android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2209) で android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1910) で android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2209)
ライブラリを次のように実装しました。
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<com.fortysevendeg.swipelistview.SwipeListView
xmlns:swipe="http://schemas.android.com/apk/res-auto"
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="35dp"
android:layout_marginTop="51dp"
android:listSelector="#00000000"
swipe:swipeActionLeft="dismiss"
swipe:swipeActionRight="dismiss"
swipe:swipeAnimationTime="1000"
swipe:swipeBackView="@+id/back"
swipe:swipeCloseAllItemsWhenMoveList="false"
swipe:swipeFrontView="@+id/front"
swipe:swipeMode="both"
swipe:swipeOffsetLeft="20dp"
swipe:swipeOffsetRight="20dp"
swipe:swipeOpenOnLongPress="false" />
</LinearLayout>
これはコードです:
private SwipeListView listview1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
States states_name[] = new States[] {
new States("Item 1", "Item A"),
new States("Item 2", "Item B"),
new States("Item 3", "Item C"),
new States("Item 4", "Item D"),
new States("Item 5", "Item E"),
new States("Item 6", "Item F"),
new States("Item 7", "Item G"),
new States("Item 8", "Item H")
};
StateAdapter adapter = new StateAdapter(this, R.layout.listtoinflate, states_name);
listview1 = (SwipeListView)findViewById(R.id.listView1);
listview1.setAdapter(adapter);
}