在卡片视图中使用浮动按钮并将该卡片应用到回收器视图中时出现错误
I am getting a error while using a floating button inside a card view and applying that card inside a recycler view
出现此错误：
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.cako, PID: 7165
android.view.InflateException: Binary XML file line #73 in com.example.cako:layout/layout_for_horizontal_recyclerview: Binary XML file line #73 in com.example.cako:layout/layout_for_horizontal_recyclerview: Error inflating class com.google.android.material.floatingactionbutton.FloatingActionButton
Caused by: android.view.InflateException: Binary XML file line #73 in com.example.cako:layout/layout_for_horizontal_recyclerview: Error inflating class com.google.android.material.floatingactionbutton.FloatingActionButton
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.newInstance0(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:343)
at android.view.LayoutInflater.createView(LayoutInflater.java:852)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:1004)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:959)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1121)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1124)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1124)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)
at android.view.LayoutInflater.inflate(LayoutInflater.java:680)
at android.view.LayoutInflater.inflate(LayoutInflater.java:532)
at com.example.cako.RecyclerVview.onCreateViewHolder(FirstActivity.java:72)
at com.example.cako.RecyclerVview.onCreateViewHolder(FirstActivity.java:58)
at androidx.recyclerview.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:7078)
at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:6235)
at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6118)
at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6114)
at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2303)
at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1627)
at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1587)
at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:665)
at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:4134)
at androidx.recyclerview.widget.RecyclerView.onMeasure(RecyclerView.java:3540)
at android.view.View.measure(View.java:25466)
at androidx.constraintlayout.widget.ConstraintLayout$Measurer.measure(ConstraintLayout.java:763)
at androidx.constraintlayout.solver.widgets.analyzer.BasicMeasure.measure(BasicMeasure.java:426)
at androidx.constraintlayout.solver.widgets.analyzer.BasicMeasure.measureChildren(BasicMeasure.java:105)
at androidx.constraintlayout.solver.widgets.analyzer.BasicMeasure.solverMeasure(BasicMeasure.java:247)
at androidx.constraintlayout.solver.widgets.ConstraintWidgetContainer.measure(ConstraintWidgetContainer.java:117)
at androidx.constraintlayout.widget.ConstraintLayout.resolveSystem(ConstraintLayout.java:1532)
at androidx.constraintlayout.widget.ConstraintLayout.onMeasure(ConstraintLayout.java:1607)
at android.view.View.measure(View.java:25466)
at androidx.core.widget.NestedScrollView.measureChildWithMargins(NestedScrollView.java:1599)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at androidx.core.widget.NestedScrollView.onMeasure(NestedScrollView.java:585)
at android.view.View.measure(View.java:25466)
at androidx.constraintlayout.widget.ConstraintLayout$Measurer.measure(ConstraintLayout.java:763)
at androidx.constraintlayout.solver.widgets.analyzer.BasicMeasure.measure(BasicMeasure.java:426)
E/AndroidRuntime: at androidx.constraintlayout.solver.widgets.analyzer.BasicMeasure.measureChildren(BasicMeasure.java:105)
at androidx.constraintlayout.solver.widgets.analyzer.BasicMeasure.solverMeasure(BasicMeasure.java:247)
at androidx.constraintlayout.solver.widgets.ConstraintWidgetContainer.measure(ConstraintWidgetContainer.java:117)
at androidx.constraintlayout.widget.ConstraintLayout.resolveSystem(ConstraintLayout.java:1532)
at androidx.constraintlayout.widget.ConstraintLayout.onMeasure(ConstraintLayout.java:1607)
at android.view.View.measure(View.java:25466)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6957)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at androidx.appcompat.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:146)
at android.view.View.measure(View.java:25466)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6957)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1552)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:842)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:721)
at android.view.View.measure(View.java:25466)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6957)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:25466)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6957)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1552)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:842)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:721)
at android.view.View.measure(View.java:25466)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6957)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at com.android.internal.policy.DecorView.onMeasure(DecorView.java:747)
at android.view.View.measure(View.java:25466)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:3397)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:2228)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2486)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1952)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:8171)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:972)
at android.view.Choreographer.doCallbacks(Choreographer.java:796)
at android.view.Choreographer.doFrame(Choreographer.java:731)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:957)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
Caused by: java.lang.IllegalArgumentException: The style on this component requires your app theme to be Theme.AppCompat (or a descendant).
at com.google.android.material.internal.ThemeEnforcement.checkTheme(ThemeEnforcement.java:243)
at com.google.android.material.internal.ThemeEnforcement.checkAppCompatTheme(ThemeEnforcement.java:213)
at com.google.android.material.internal.ThemeEnforcement.checkCompatibleTheme(ThemeEnforcement.java:148)
at com.google.android.material.internal.ThemeEnforcement.obtainStyledAttributes(ThemeEnforcement.java:76)
at com.google.android.material.floatingactionbutton.FloatingActionButton.<init>(FloatingActionButton.java:212)
at com.google.android.material.floatingactionbutton.FloatingActionButton.<init>(FloatingActionButton.java:201)
... 83 more
I/Process: Sending signal. PID: 7165 SIG: 9
XML layout_for_horizontal_recyclerview.xml 的代码：-
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.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="wrap_content"
android:layout_height="wrap_content">
<androidx.cardview.widget.CardView
android:id="@+id/cardView"
android:layout_width="150dp"
android:layout_height="200dp"
app:cardBackgroundColor="@color/CardColor"
app:cardCornerRadius="25sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="@+id/constraint"
android:layout_width="130dp"
android:layout_height="180dp"
android:layout_gravity="center"
android:background="@android:color/white"
android:padding="5dp">
<ImageView
android:id="@+id/imageView"
android:layout_width="90dp"
android:layout_height="100dp"
android:background="@android:color/holo_orange_light"
android:foregroundGravity="center_horizontal"
android:scaleType="fitXY"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="5dp"
android:layout_marginTop="5dp"
android:fontFamily="@font/playfair_display_bold_italic"
android:gravity="center"
android:text="Great"
android:textColor="@android:color/black"
android:textSize="12sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/imageView" />
<TextView
android:id="@+id/textViewForPieceInfo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="5dp"
android:layout_marginTop="5dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textView4" />
<TextView
android:id="@+id/textViewforPrice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="5dp"
android:layout_marginTop="5dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textViewForPieceInfo" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/floatingActionButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="25dp"
android:layout_marginBottom="20dp"
app:fabSize="mini"
app:layout_anchor="@id/cardView"
app:layout_anchorGravity="bottom|end"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:srcCompat="@drawable/ic_baseline_add_24" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
我的 FirstActivity.java 文件包含实现该卡的回收视图：
package com.example.cako;
public class FirstActivity extends AppCompatActivity{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_first);
String []x={"Aaran", "Aaren", "Aarez", "Aarman", "Aaron", "Aaron-James", "Aarron", "Aaryan", "Abhinav","Ankit"};
String []image= {"https://upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Aloo_gobi.jpg/180px-Aloo_gobi.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Aloo_gobi.jpg/180px-Aloo_gobi.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Aloo_Tikki_served_with_chutneys.jpg/180px-Aloo_Tikki_served_with_chutneys.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Aloo_Mattar.jpg/180px-Aloo_Mattar.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Aloo_Methi_%28Aaloo_Methi%29.JPG/180px-Aloo_Methi_%28Aaloo_Methi%29.JPG",
"https://upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Spicy_alloo_with_tadka_mirchi.jpg/180px-Spicy_alloo_with_tadka_mirchi.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Aloo_gobi.jpg/180px-Aloo_gobi.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Aloo_gobi.jpg/180px-Aloo_gobi.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Aloo_Tikki_served_with_chutneys.jpg/180px-Aloo_Tikki_served_with_chutneys.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Aloo_Mattar.jpg/180px-Aloo_Mattar.jpg"
};
Toolbar toolbar=findViewById(R.id.toolbar) ;
setSupportActionBar(toolbar);
RecyclerView horizontalrecyclerView =(RecyclerView)findViewById(R.id.recyclerViewHorizontal);
horizontalrecyclerView.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL,false));
horizontalrecyclerView.setAdapter(new RecyclerVview(getApplicationContext(),x,image));
RecyclerView verticalrecyclerView =(RecyclerView)findViewById(R.id.recyclerViewVertical);
verticalrecyclerView.setLayoutManager(new GridLayoutManager(this,2));
verticalrecyclerView.setAdapter(new RecyclerVview(getApplicationContext(),x,image));
}
}
class RecyclerVview extends RecyclerView.Adapter<RecyclerVview.Holder>{
Context co;
String[] name;
String[] image;
public RecyclerVview(Context applicationContext, String[] x, String[] image) {
co=applicationContext;
name=x;
this.image=image;
}
@NonNull
@Override
public Holder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View v=LayoutInflater.from(co).inflate(R.layout.layout_for_horizontal_recyclerview,parent,false);
return new Holder(v);
}
@Override
public void onBindViewHolder(@NonNull Holder holder, int position) {
holder.textViewForItemName.setText(name[position]);
Glide.with(co).load(image[position]).into(holder.image);
holder.floatingActionButton.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View view) {
Toast.makeText(co,"yesWorking",Toast.LENGTH_SHORT);
return true;
}
});
holder.textViewForPrice.setText("30$");
holder.textViewForPieceInfo.setText("Single Piece Only.");
}
@Override
public int getItemCount() {
return name.length;
}
public class Holder extends RecyclerView.ViewHolder{
ImageView image;
TextView textViewForItemName;
FloatingActionButton floatingActionButton;
TextView textViewForPrice;
TextView textViewForPieceInfo;
public Holder(@NonNull View itemView) {
super(itemView);
image=itemView.findViewById(R.id.imageView);
textViewForItemName=itemView.findViewById(R.id.textView4);
floatingActionButton=itemView.findViewById(R.id.floatingActionButton);
textViewForPieceInfo=itemView.findViewById(R.id.textViewForPieceInfo);
textViewForPrice=itemView.findViewById(R.id.textViewforPrice);
}
}
}
适配器中使用的上下文存在问题。
horizontalrecyclerView.setAdapter(new RecyclerVview(getApplicationContext(),x,image));
verticalrecyclerView.setAdapter(new RecyclerVview(getApplicationContext(),x,image));
您必须传入 Activity，而不是 ApplicationContext。
ApplicationContext 没有应用主题。
出现此错误：
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.cako, PID: 7165
android.view.InflateException: Binary XML file line #73 in com.example.cako:layout/layout_for_horizontal_recyclerview: Binary XML file line #73 in com.example.cako:layout/layout_for_horizontal_recyclerview: Error inflating class com.google.android.material.floatingactionbutton.FloatingActionButton
Caused by: android.view.InflateException: Binary XML file line #73 in com.example.cako:layout/layout_for_horizontal_recyclerview: Error inflating class com.google.android.material.floatingactionbutton.FloatingActionButton
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.newInstance0(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:343)
at android.view.LayoutInflater.createView(LayoutInflater.java:852)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:1004)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:959)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1121)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1124)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1124)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)
at android.view.LayoutInflater.inflate(LayoutInflater.java:680)
at android.view.LayoutInflater.inflate(LayoutInflater.java:532)
at com.example.cako.RecyclerVview.onCreateViewHolder(FirstActivity.java:72)
at com.example.cako.RecyclerVview.onCreateViewHolder(FirstActivity.java:58)
at androidx.recyclerview.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:7078)
at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:6235)
at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6118)
at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6114)
at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2303)
at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1627)
at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1587)
at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:665)
at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:4134)
at androidx.recyclerview.widget.RecyclerView.onMeasure(RecyclerView.java:3540)
at android.view.View.measure(View.java:25466)
at androidx.constraintlayout.widget.ConstraintLayout$Measurer.measure(ConstraintLayout.java:763)
at androidx.constraintlayout.solver.widgets.analyzer.BasicMeasure.measure(BasicMeasure.java:426)
at androidx.constraintlayout.solver.widgets.analyzer.BasicMeasure.measureChildren(BasicMeasure.java:105)
at androidx.constraintlayout.solver.widgets.analyzer.BasicMeasure.solverMeasure(BasicMeasure.java:247)
at androidx.constraintlayout.solver.widgets.ConstraintWidgetContainer.measure(ConstraintWidgetContainer.java:117)
at androidx.constraintlayout.widget.ConstraintLayout.resolveSystem(ConstraintLayout.java:1532)
at androidx.constraintlayout.widget.ConstraintLayout.onMeasure(ConstraintLayout.java:1607)
at android.view.View.measure(View.java:25466)
at androidx.core.widget.NestedScrollView.measureChildWithMargins(NestedScrollView.java:1599)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at androidx.core.widget.NestedScrollView.onMeasure(NestedScrollView.java:585)
at android.view.View.measure(View.java:25466)
at androidx.constraintlayout.widget.ConstraintLayout$Measurer.measure(ConstraintLayout.java:763)
at androidx.constraintlayout.solver.widgets.analyzer.BasicMeasure.measure(BasicMeasure.java:426)
E/AndroidRuntime: at androidx.constraintlayout.solver.widgets.analyzer.BasicMeasure.measureChildren(BasicMeasure.java:105)
at androidx.constraintlayout.solver.widgets.analyzer.BasicMeasure.solverMeasure(BasicMeasure.java:247)
at androidx.constraintlayout.solver.widgets.ConstraintWidgetContainer.measure(ConstraintWidgetContainer.java:117)
at androidx.constraintlayout.widget.ConstraintLayout.resolveSystem(ConstraintLayout.java:1532)
at androidx.constraintlayout.widget.ConstraintLayout.onMeasure(ConstraintLayout.java:1607)
at android.view.View.measure(View.java:25466)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6957)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at androidx.appcompat.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:146)
at android.view.View.measure(View.java:25466)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6957)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1552)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:842)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:721)
at android.view.View.measure(View.java:25466)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6957)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:25466)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6957)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1552)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:842)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:721)
at android.view.View.measure(View.java:25466)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6957)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at com.android.internal.policy.DecorView.onMeasure(DecorView.java:747)
at android.view.View.measure(View.java:25466)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:3397)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:2228)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2486)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1952)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:8171)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:972)
at android.view.Choreographer.doCallbacks(Choreographer.java:796)
at android.view.Choreographer.doFrame(Choreographer.java:731)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:957)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
Caused by: java.lang.IllegalArgumentException: The style on this component requires your app theme to be Theme.AppCompat (or a descendant).
at com.google.android.material.internal.ThemeEnforcement.checkTheme(ThemeEnforcement.java:243)
at com.google.android.material.internal.ThemeEnforcement.checkAppCompatTheme(ThemeEnforcement.java:213)
at com.google.android.material.internal.ThemeEnforcement.checkCompatibleTheme(ThemeEnforcement.java:148)
at com.google.android.material.internal.ThemeEnforcement.obtainStyledAttributes(ThemeEnforcement.java:76)
at com.google.android.material.floatingactionbutton.FloatingActionButton.<init>(FloatingActionButton.java:212)
at com.google.android.material.floatingactionbutton.FloatingActionButton.<init>(FloatingActionButton.java:201)
... 83 more
I/Process: Sending signal. PID: 7165 SIG: 9
XML layout_for_horizontal_recyclerview.xml 的代码：-
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.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="wrap_content"
android:layout_height="wrap_content">
<androidx.cardview.widget.CardView
android:id="@+id/cardView"
android:layout_width="150dp"
android:layout_height="200dp"
app:cardBackgroundColor="@color/CardColor"
app:cardCornerRadius="25sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="@+id/constraint"
android:layout_width="130dp"
android:layout_height="180dp"
android:layout_gravity="center"
android:background="@android:color/white"
android:padding="5dp">
<ImageView
android:id="@+id/imageView"
android:layout_width="90dp"
android:layout_height="100dp"
android:background="@android:color/holo_orange_light"
android:foregroundGravity="center_horizontal"
android:scaleType="fitXY"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="5dp"
android:layout_marginTop="5dp"
android:fontFamily="@font/playfair_display_bold_italic"
android:gravity="center"
android:text="Great"
android:textColor="@android:color/black"
android:textSize="12sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/imageView" />
<TextView
android:id="@+id/textViewForPieceInfo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="5dp"
android:layout_marginTop="5dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textView4" />
<TextView
android:id="@+id/textViewforPrice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="5dp"
android:layout_marginTop="5dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textViewForPieceInfo" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/floatingActionButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="25dp"
android:layout_marginBottom="20dp"
app:fabSize="mini"
app:layout_anchor="@id/cardView"
app:layout_anchorGravity="bottom|end"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:srcCompat="@drawable/ic_baseline_add_24" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
我的 FirstActivity.java 文件包含实现该卡的回收视图：
package com.example.cako;
public class FirstActivity extends AppCompatActivity{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_first);
String []x={"Aaran", "Aaren", "Aarez", "Aarman", "Aaron", "Aaron-James", "Aarron", "Aaryan", "Abhinav","Ankit"};
String []image= {"https://upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Aloo_gobi.jpg/180px-Aloo_gobi.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Aloo_gobi.jpg/180px-Aloo_gobi.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Aloo_Tikki_served_with_chutneys.jpg/180px-Aloo_Tikki_served_with_chutneys.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Aloo_Mattar.jpg/180px-Aloo_Mattar.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Aloo_Methi_%28Aaloo_Methi%29.JPG/180px-Aloo_Methi_%28Aaloo_Methi%29.JPG",
"https://upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Spicy_alloo_with_tadka_mirchi.jpg/180px-Spicy_alloo_with_tadka_mirchi.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Aloo_gobi.jpg/180px-Aloo_gobi.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Aloo_gobi.jpg/180px-Aloo_gobi.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Aloo_Tikki_served_with_chutneys.jpg/180px-Aloo_Tikki_served_with_chutneys.jpg",
"https://upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Aloo_Mattar.jpg/180px-Aloo_Mattar.jpg"
};
Toolbar toolbar=findViewById(R.id.toolbar) ;
setSupportActionBar(toolbar);
RecyclerView horizontalrecyclerView =(RecyclerView)findViewById(R.id.recyclerViewHorizontal);
horizontalrecyclerView.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL,false));
horizontalrecyclerView.setAdapter(new RecyclerVview(getApplicationContext(),x,image));
RecyclerView verticalrecyclerView =(RecyclerView)findViewById(R.id.recyclerViewVertical);
verticalrecyclerView.setLayoutManager(new GridLayoutManager(this,2));
verticalrecyclerView.setAdapter(new RecyclerVview(getApplicationContext(),x,image));
}
}
class RecyclerVview extends RecyclerView.Adapter<RecyclerVview.Holder>{
Context co;
String[] name;
String[] image;
public RecyclerVview(Context applicationContext, String[] x, String[] image) {
co=applicationContext;
name=x;
this.image=image;
}
@NonNull
@Override
public Holder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View v=LayoutInflater.from(co).inflate(R.layout.layout_for_horizontal_recyclerview,parent,false);
return new Holder(v);
}
@Override
public void onBindViewHolder(@NonNull Holder holder, int position) {
holder.textViewForItemName.setText(name[position]);
Glide.with(co).load(image[position]).into(holder.image);
holder.floatingActionButton.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View view) {
Toast.makeText(co,"yesWorking",Toast.LENGTH_SHORT);
return true;
}
});
holder.textViewForPrice.setText("30$");
holder.textViewForPieceInfo.setText("Single Piece Only.");
}
@Override
public int getItemCount() {
return name.length;
}
public class Holder extends RecyclerView.ViewHolder{
ImageView image;
TextView textViewForItemName;
FloatingActionButton floatingActionButton;
TextView textViewForPrice;
TextView textViewForPieceInfo;
public Holder(@NonNull View itemView) {
super(itemView);
image=itemView.findViewById(R.id.imageView);
textViewForItemName=itemView.findViewById(R.id.textView4);
floatingActionButton=itemView.findViewById(R.id.floatingActionButton);
textViewForPieceInfo=itemView.findViewById(R.id.textViewForPieceInfo);
textViewForPrice=itemView.findViewById(R.id.textViewforPrice);
}
}
}
适配器中使用的上下文存在问题。
horizontalrecyclerView.setAdapter(new RecyclerVview(getApplicationContext(),x,image));verticalrecyclerView.setAdapter(new RecyclerVview(getApplicationContext(),x,image));
您必须传入 Activity，而不是 ApplicationContext。
ApplicationContext 没有应用主题。