我使用自定义Adapter类来使用RecyclerView,这是我的代码:
public class CardAdapter extends RecyclerView.Adapter<CardAdapter.ViewHolder> {
List<NatureItem> mItems;
public CardAdapter() {
super();
mItems = new ArrayList<NatureItem>();
NatureItem nature = new NatureItem();
nature.setName("The Great Barrier Reef");
nature.setThumbnail(R.drawable.great_barrier_reef);
mItems.add(nature);
nature = new NatureItem();
nature.setName("Grand Canyon");
nature.setThumbnail(R.drawable.grand_canyon);
mItems.add(nature);
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View v = LayoutInflater.from(viewGroup.getContext())
.inflate(R.layout.recycler_view_card_item, viewGroup, false);
ViewHolder viewHolder = new ViewHolder(v);
return viewHolder;
}
@Override
public void onBindViewHolder(ViewHolder viewHolder, int i) {
NatureItem nature = mItems.get(i);
viewHolder.tvNature.setText(nature.getName());
viewHolder.imgThumbnail.setImageResource(nature.getThumbnail());
}
@Override
public int getItemCount() {
return mItems.size();
}
class ViewHolder extends RecyclerView.ViewHolder{
public ImageView imgThumbnail;
public TextView tvNature;
public ViewHolder(View itemView) {
super(itemView);
imgThumbnail = (ImageView)itemView.findViewById(R.id.img_thumbnail);
tvNature = (TextView)itemView.findViewById(R.id.tv_nature);
}
}
}
这是完整的日志:
android.view.InflateException: Binary XML file line #33: Error inflating class <unknown>
at android.view.LayoutInflater.createView(LayoutInflater.java:613)
at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
at android.view.LayoutInflater.onCreateView(LayoutInflater.java:660)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:749)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:749)
at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
at com.github.florent37.materialviewpager.sample.CardAdapter.onCreateViewHolder(CardAdapter.java:53)
at com.github.florent37.materialviewpager.sample.CardAdapter.onCreateViewHolder(CardAdapter.java:18)
at android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:4385)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:3700)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:3609)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1859)
at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1311)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1274)
at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:525)
at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2118)
at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:2415)
at android.view.View.layout(View.java:14063)
at android.view.ViewGroup.layout(ViewGroup.java:4607)
at android.support.v4.view.ViewPager.onLayout(ViewPager.java:1594)
at android.view.View.layout(View.java:14063)
at android.view.ViewGroup.layout(ViewGroup.java:4607)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:948)
at android.view.View.layout(View.java:14063)
at android.view.ViewGroup.layout(ViewGroup.java:4607)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14063)
at android.view.ViewGroup.layout(ViewGroup.java:4607)
at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:907)
at android.view.View.layout(View.java:14063)
at android.view.ViewGroup.layout(ViewGroup.java:4607)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14063)
at android.view.ViewGroup.layout(ViewGroup.java:4607)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1655)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1513)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1426)
at android.view.View.layout(View.java:14063)
at android.view.ViewGroup.layout(ViewGroup.java:4607)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14063)
at android.view.ViewGroup.layout(ViewGroup.java:4607)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1655)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1513)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1426)
at android.view.View.layout(View.java:14063)
at android.view.ViewGroup.layout(ViewGroup.java:4607)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14063)
at android.view.ViewGroup.layout(ViewGroup.java:4607)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1996)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1817)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1114)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4520)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725)
at android.view.Choreographer.doCallbacks(Choreograp
CartAdapter 行号:53
View v = LayoutInflater.from(viewGroup.getContext())
CartAdapter 行号:18
public class CardAdapter extends RecyclerView.Adapter<CardAdapter.ViewHolder> {
可能是什么原因?为什么我要面对这个问题..还有什么地方我必须做出改变吗?
由@Abhishek
和@Shvet
提供的解决方案,它解决了异常,但仍然得到类似的东西,默认情况下通过MaterialViewPager进行RecyclerView(这不行)
再次编辑:
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
mRecyclerView = (RecyclerView) view.findViewById(R.id.recycler_view);
mRecyclerView.setHasFixedSize(true);
mLayoutManager = new GridLayoutManager(getActivity(), 2);
mRecyclerView.setLayoutManager(mLayoutManager);
// mAdapter = new CardAdapter();
mAdapter = new RecyclerViewMaterialAdapter(new CardAdapter());
mRecyclerView.setAdapter(mAdapter);
MaterialViewPagerHelper.registerRecyclerView(getActivity(), mRecyclerView, null);
mRecyclerView.addOnItemTouchListener(
new RecyclerItemClickListener(getActivity(), new RecyclerItemClickListener.OnItemClickListener() {
@Override
public void onItemClick(View view, int position) {
Toast.makeText(getActivity(), String.valueOf(position), Toast.LENGTH_LONG).show();
}
})
);
}
}
答案 0 :(得分:2)
我尝试了一个示例应用中的代码。我花了一段时间才发现makeFunctionNamed:maximumArguments:withBlock:
中的两行以下导致了这个问题。
recycler_view_card_item.xml
如果我是正确的(我不能确定,因为你还没有发布这部分代码),你还没有在默认android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
中声明activity_horizontal_margin
(res \值\ dimens.xml)即可。你需要在默认维度中声明这个来解决问题,比如这个
<强> dimens.xml 强>
dimens.xml
希望有所帮助:)
编辑:您需要在片段中添加占位符以按下Recycler视图。请参阅<resources>
<dimen name="activity_horizontal_margin">64dp</dimen>
</resources>
库的使用指南 - https://github.com/florent37/MaterialViewPager。这已在那里提到过。
将 fragment_recyclerview_advance.xml 更改为
MaterialViewPager
编辑2 :要解决滚动问题,请删除我在之前编辑中建议的占位符。但请使用库提供的<?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="wrap_content"
android:orientation="vertical">
<include layout="@layout/material_view_pager_placeholder" />
<android.support.v7.widget.RecyclerView
android:id="@+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
包装您的RecyclerView adpater
RecyclerViewMaterialAdapter
完整代码:
<强> fragment_recyclerview_advance.xml 强>
mAdapter = new RecyclerViewMaterialAdapter(new CardAdapter());
mRecyclerView.setAdapter(mAdapter);
<强> RecyclerViewFragment.java 强>
<?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="wrap_content"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView
android:id="@+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
答案 1 :(得分:1)
检查完代码后,我得到了解决方案。正如@Abhisheck回答的那样。这是维度声明的问题。将<dimen name="activity_horizontal_margin">64dp</dimen>
添加到dimen.xml
文件中。此外,您必须将样式从ActionBar
更改为NoActionBar
。检查以下编辑。
<强>值/ dimens.xml 强>
<resources>
<dimen name="cardMarginHorizontal">10dp</dimen>
<dimen name="cardMarginVertical">8dp</dimen>
<dimen name="activity_horizontal_margin">64dp</dimen>
</resources>
<强> style.xml 强>
<style name="AppBaseTheme" parent="@style/Theme.AppCompat.Light.NoActionBar">
此外,您需要升级您的依赖项。
build.gradle(示例)
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:22.2.0'
compile 'com.android.support:recyclerview-v7:22.2.0'
compile 'com.android.support:cardview-v7:22.2.0'
compile 'com.android.support:support-v4:22.2.0'
//compile ('com.github.florent37:materialviewpager:1.0.1@aar'){
// transitive=true
//}
compile project(':materialviewpager')
}
<强>的build.gradle(项目)强>
dependencies {
classpath 'com.android.tools.build:gradle:1.2.3'
classpath 'com.github.dcendents:android-maven-plugin:1.2'
classpath "com.jfrog.bintray.gradle:gradle-bintray-plugin:1.1"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
如果出现任何问题,请告诉我。