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Прошу вас поучаствовать в этом; так как я новичок в Android/Java.Android - PullToRefresh ClassCastException
Я использую библиотеку PullToRefresh (от Chrisbanes) и имею LoadMoreGridView для моего приложения для Android. Когда я запустить приложение, я сталкиваюсь ClassCassException:
java.lang.ClassCastException: com.handmark.pulltorefresh.library.PullToRefreshGridView cannot be cast to com.mycommon.utils.LoadMoreGridView
Честно говоря, я не могу понять его бросить ли я правильный тип для LoadMoreGridView. Ниже мое частичное GridFragment.java что делать бросок к LoadMoreGridView:
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener2;
import com.handmark.pulltorefresh.library.PullToRefreshGridView;
import com.mycommom.utils.LoadMoreGridView;
import com.mycommom.utils.LoadMoreGridView.OnLoadMoreListener;
public class GridFragment extends Fragment {
...
private PullToRefreshGridView mPullRefreshGridView;
private LoadMoreGridView mGridView;
...
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
...
mPullRefreshGridView = (PullToRefreshGridView) v.findViewById(R.id.feedgrid);
mGridView = (LoadMoreGridView) mPullRefreshGridView.getRefreshableView();
...
И это следующее частичное com.mycommon.utils.LoadMoreGridView:
public class LoadMoreGridView
extends GridView
implements AbsListView.OnScrollListener
{
private static final String TAG = "LoadMoreListView";
private AbsListView.OnScrollListener mOnScrollListener;
private LayoutInflater mInflater;
private RelativeLayout mFooterView;
private ProgressBar mProgressBarLoadMore;
private OnLoadMoreListener mOnLoadMoreListener;
private boolean mIsLoadingMore = false;
private int mCurrentScrollState;
public LoadMoreGridView(Context context)
{
super(context);
init(context);
}
public LoadMoreGridView(Context context, AttributeSet attrs)
{
super(context, attrs);
init(context);
}
public LoadMoreGridView(Context context, AttributeSet attrs, int defStyle)
{
super(context, attrs, defStyle);
init(context);
}
private void init(Context context)
{
this.mInflater =
((LayoutInflater)context.getSystemService("layout_inflater"));
super.setOnScrollListener(this);
}
...
И это PullRefreshGridView. ява по Chrisbanes:
import ...
public class PullToRefreshGridView extends PullToRefreshAdapterViewBase<GridView> {
public PullToRefreshGridView(Context context) {
super(context);
}
public PullToRefreshGridView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public PullToRefreshGridView(Context context, Mode mode) {
super(context, mode);
}
public PullToRefreshGridView(Context context, Mode mode, AnimationStyle style) {
super(context, mode, style);
}
@Override
public final Orientation getPullToRefreshScrollDirection() {
return Orientation.VERTICAL;
}
@Override
protected final GridView createRefreshableView(Context context, AttributeSet attrs) {
final GridView gv;
if (VERSION.SDK_INT >= VERSION_CODES.GINGERBREAD) {
gv = new InternalGridViewSDK9(context, attrs);
} else {
gv = new InternalGridView(context, attrs);
}
// Use Generated ID (from res/values/ids.xml)
gv.setId(R.id.gridview);
return gv;
}
...
@TargetApi(9)
final class InternalGridViewSDK9 extends InternalGridView {
public InternalGridViewSDK9(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected boolean overScrollBy(int deltaX, int deltaY, int scrollX, int scrollY, int scrollRangeX,
int scrollRangeY, int maxOverScrollX, int maxOverScrollY, boolean isTouchEvent) {
final boolean returnValue = super.overScrollBy(deltaX, deltaY, scrollX, scrollY, scrollRangeX,
scrollRangeY, maxOverScrollX, maxOverScrollY, isTouchEvent);
OverscrollHelper.overScrollBy(PullToRefreshGridView.this, deltaX, scrollX, deltaY, scrollY, isTouchEvent);
return returnValue;
}
}
}
по просьбе моего основного XML:
<FrameLayout xmlns:tools="http://schemas.android.com/tools"
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/LinearLogin"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
tools:context=".MainActivity1" >
<com.zeal.peak.obejects.RecyclingImageView
android:id="@+id/iv1"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
<LinearLayout
android:id="@+id/unspacedlayot"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin" >
<ImageView
android:id="@+id/ivmyappz_logo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scaleType="center"
android:layout_gravity="center"
android:layout_marginBottom="10dp"
android:background="@drawable/ic_myappz_title" />
<LinearLayout
android:id="@+id/unamelyt"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView
android:id="@+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/buttonbg1"
android:scaleType="center"
android:src="@drawable/login_email" />
<EditText
android:id="@+id/et_uname"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/coustom_editext"
android:ems="10"
android:hint="Email"
android:inputType="textEmailAddress"
android:textColor="@android:color/black"
android:textColorHint="@color/font_color" >
<requestFocus />
</EditText>
</LinearLayout>
<LinearLayout
android:id="@+id/passlayt"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="1dp" >
<ImageView
android:id="@+id/imageView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/buttonbg1"
android:scaleType="center"
android:src="@drawable/login_password" />
<EditText
android:id="@+id/et_pass"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/coustom_editext"
android:ems="10"
android:hint="Password"
android:inputType="textPassword"
android:textColor="@android:color/black"
android:textColorHint="@color/font_color" />
</LinearLayout>
<LinearLayout
android:id="@+id/laytbtns"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp" >
<Button
android:id="@+id/btn_login"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginRight="5dp"
android:layout_weight="1"
android:background="@drawable/login" />
<Button
android:id="@+id/btn_register"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_weight="1"
android:background="@drawable/register" />
</LinearLayout>
<Button
android:id="@+id/btn_fblogin"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:background="@drawable/loginthroughfb" />
<TextView
android:id="@+id/tv_frgtpassword"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginLeft="5dp"
android:layout_marginTop="5dp"
android:gravity="center"
android:text="@string/lbl_forget_password"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textSize="15sp" />
</LinearLayout>
</FrameLayout>
Любая помощь по вышеуказанному вопросу действительно оценена. Спасибо!
пожалуйста, покажите ваш XML данного зрения –
Спасибо. Я отправил основной xml по запросу. – Bean