我的主要布局包含View Pager和TabLayout。 View Pager的每个页面都是Fragment，其中一个片段有RecyclerView。
我的问题是，在我的onCreateViewHolder我的适配器上，并没有夸大任何视图来创建我的ViewHolder。即使只是一个简单的按钮，我也会遇到异常。
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="8dp"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/main_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay" />
<android.support.design.widget.TabLayout
android:id="@+id/main_tablayout"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/main_viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
fragment.xml
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="@+id/recycler_produtos"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical">
</android.support.v7.widget.RecyclerView>
</FrameLayout>
card_produtos.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<Button
android:id="@+id/nome"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="@dimen/activity_horizontal_margin"
android:elevation="?attr/cardElevation"
android:gravity="center"
android:padding="@dimen/activity_vertical_margin">
</Button>
</LinearLayout>
Adapter.java
public class ProdutosAdapter extends RecyclerView.Adapter<ProdutosAdapter.ViewHolder> {
private List<Produto> produtos;
private int idLayout;
public ProdutosAdapter(List<Produto> produtos, int idLayout) {
this.produtos = produtos;
this.idLayout = idLayout;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
//error below
View v = LayoutInflater.from(parent.getContext()).inflate(idLayout, parent, false);
return new ViewHolder(v);
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
Produto produto = produtos.get(position);
holder.mNome.setText(produto.getProduto());
}
@Override
public int getItemCount() {
return produtos.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
private final TextView mNome;
public ViewHolder(View itemView) {
super(itemView);
mNome = (TextView) itemView.findViewById(R.id.nome);
}
}
public void update(List<Produto> produtos) {
this.produtos.clear();
this.produtos.addAll(produtos);
notifyDataSetChanged();
}
}
Fragment.java
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View rootView = inflater.inflate(R.layout.fragment_produtos, container, false);
RecyclerView mRecycler = (RecyclerView) rootView.findViewById(R.id.recycler_produtos);
GridLayoutManager manager = new GridLayoutManager(getActivity(), 2);
mRecycler.setLayoutManager(manager);
mProdutosAdapter = new ProdutosAdapter(new ArrayList<Produto>(), R.layout.card_produtos);
mRecycler.setAdapter(mProdutosAdapter);
return rootView;
}
logcat
03-11 19:03:37.379 9433-9433/br.com.orangesistemas.comanda2 E/AndroidRuntime: FATAL EXCEPTION: main
Process: br.com.orangesistemas.comanda2, PID: 9433
android.view.InflateException: Binary XML file line #2: Error inflating class android.support.v7.widget.CardView
at android.view.LayoutInflater.createView(LayoutInflater.java:640)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:750)
at android.view.LayoutInflater.inflate(LayoutInflater.java:483)
at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
at br.com.orangesistemas.comanda2.adapter.ProdutosAdapter.onCreateViewHolder(ProdutosAdapter.java:27)
at br.com.orangesistemas.comanda2.adapter.ProdutosAdapter.onCreateViewHolder(ProdutosAdapter.java:16)
at android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:5223)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4449)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4359)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1961)
at android.support.v7.widget.GridLayoutManager.layoutChunk(GridLayoutManager.java:438)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1333)
at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:562)
at android.support.v7.widget.GridLayoutManager.onLayoutChildren(GridLayoutManager.java:171)
at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2900)
at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3071)
at android.view.View.layout(View.java:16942)
at android.view.ViewGroup.layout(ViewGroup.java:5409)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
at android.view.View.layout(View.java:16942)
at android.view.ViewGroup.layout(ViewGroup.java:5409)
at android.support.v4.view.ViewPager.onLayout(ViewPager.java:1627)
at android.view.View.layout(View.java:16942)
at android.view.ViewGroup.layout(ViewGroup.java:5409)
at android.support.design.widget.CoordinatorLayout.layoutChild(CoordinatorLayout.java:1037)
at android.support.design.widget.CoordinatorLayout.onLayoutChild(CoordinatorLayout.java:747)
at android.support.design.widget.ViewOffsetBehavior.onLayoutChild(ViewOffsetBehavior.java:42)
at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onLayoutChild(AppBarLayout.java:1133)
at android.support.design.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:760)
at android.view.View.layout(View.java:16942)
at android.view.ViewGroup.layout(ViewGroup.java:5409)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
at android.view.View.layout(View.java:16942)
at android.view.ViewGroup.layout(ViewGroup.java:5409)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1702)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1556)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1465)
at android.view.View.layout(View.java:16942)
at android.view.ViewGroup.layout(ViewGroup.java:5409)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
at android.view.View.layout(View.java:16942)
at android.view.ViewGroup.layout(ViewGroup.java:5409)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1702)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1556)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1465)
at android.view.View.layout(View.java:16942)
at android.view.ViewGroup.layout(ViewGroup.java:5409)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
at android.view.View.layout(View.java:16942)
at android.view.ViewGroup.layout(ViewGroup.java:5409)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2457)
at android.view.ViewRootImpl.perform