当我使用firebasui recycleview片段时，我的应用程序每次尝试打开时都会崩溃。我在正常活动中完成了firebaseui recycleview并且没有崩溃。我找不到问题。任何一种帮助将是非常有用的..谢谢你
片段类：
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import com.firebase.ui.database.FirebaseRecyclerAdapter;
import com.firebase.ui.database.FirebaseRecyclerOptions;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.Query;
/**
* Created by Akib on 1/18/2018.
*/
public class BlogActivity extends Fragment {
private RecyclerView recyclerView;
private Query query;
private FirebaseRecyclerAdapter firebaseRecyclerAdapter;
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.activity_blog, container, false);
return v;
}
public static class BlogViewHolder extends RecyclerView.ViewHolder{
View view;
public BlogViewHolder(View itemView) {
super(itemView);
view=itemView;
}
public void setTitle(String title)
{
TextView post_title=(TextView) view.findViewById(R.id.title);
post_title.setText(title);
}
public void setDescription(String description)
{
TextView post_desc=(TextView) view.findViewById(R.id.description);
post_desc.setText(description);
}
}
@Override
public void onStart() {
super.onStart();
firebaseRecyclerAdapter.startListening();
}
@Override
public void onStop() {
super.onStop();
firebaseRecyclerAdapter.stopListening();
}
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
recyclerView=(RecyclerView) view.findViewById(R.id.recycleview);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
query= FirebaseDatabase.getInstance().getReference().child("Blog");
FirebaseRecyclerOptions<BlogDesc> options=new FirebaseRecyclerOptions.Builder<BlogDesc>().setQuery(query,BlogDesc.class).build();
firebaseRecyclerAdapter=new FirebaseRecyclerAdapter<BlogDesc, BlogViewHolder>(options) {
@Override
public BlogViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view;
view=LayoutInflater.from(parent.getContext()).inflate(R.layout.blog_row,parent,false);
return new BlogViewHolder(view);
}
@Override
protected void onBindViewHolder(@NonNull BlogViewHolder holder, int position, @NonNull BlogDesc model) {
holder.setTitle(model.getTitle());
holder.setDescription(model.getDescription());
}
};
recyclerView.setAdapter(firebaseRecyclerAdapter);
getActivity().setTitle("Blog");
}
}
MainActivity类：
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.view.View;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
public class HomeActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.home, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
private void displaySelectedScreen(int id)
{
Fragment fragment =null;
if (id == R.id.nav_camera) {
fragment=new BlogActivity();
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
if(fragment!=null)
{
FragmentTransaction fragmentTransaction=getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.home_content,fragment);
fragmentTransaction.commit();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
/*if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);*/
displaySelectedScreen(id);
return true;
}
}
activity_blog.xml：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="@+id/recycleview"
android:layout_width="match_parent"
android:layout_height="match_parent"></android.support.v7.widget.RecyclerView>
</LinearLayout>
CardView：
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/title"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/description"/>
</LinearLayout>
</android.support.v7.widget.CardView>
activity_home.xml：
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout 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:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
layout="@layout/app_bar_home"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header_home"
app:menu="@menu/activity_home_drawer" />
</android.support.v4.widget.DrawerLayout>
Content_home.xml：
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/home_content"
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"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.aust.austpc.austpcportalbeta4.HomeActivity"
tools:showIn="@layout/app_bar_home">
</android.support.constraint.ConstraintLayout>
错误：
01-19 03:44:05.396 23502-23502/com.aust.austpc.austpcportalbeta4 E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.aust.austpc.austpcportalbeta4, PID: 23502
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.aust.austpc.austpcportalbeta4/com.aust.austpc.austpcportalbeta4.HomeActivity}: android.view.InflateException: Binary XML file line #0: Binary XML file line #0: Error inflating class android.support.design.widget.NavigationView
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2455)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2515)
at android.app.ActivityThread.access$1000(ActivityThread.java:154)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1379)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:157)
at android.app.ActivityThread.main(ActivityThread.java:5571)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:745)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:635)
Caused by: android.view.InflateException: Binary XML file line #0: Binary XML file line #0: Error inflating class android.support.design.widget.NavigationView
at android.view.LayoutInflater.inflate(LayoutInflater.java:543)
at android.view.LayoutInflater.inflate(LayoutInflater.java:427)
at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at com.aust.austpc.austpcportalbeta4.HomeActivity.onCreate(HomeActivity.java:24)
at android.app.Activity.performCreate(Activity.java:6357)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2408)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2515)
at android.app.ActivityThread.access$1000(ActivityThread.java:154)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1379)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:157)
at android.app.ActivityThread.main(ActivityThread.java:5571)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:745)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:635)
Caused by: android.view.InflateException: Binary XML file line #0: Error inflating class android.support.design.widget.NavigationView
at android.view.LayoutInflater.createView(LayoutInflater.java:649)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:768)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:708)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:839)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:802)
at android.view.LayoutInflater.inflate(LayoutInflater.java:519)
at android.view.LayoutInflater.inflate(LayoutInflater.java:427)
at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at com.aust.austpc.austpcportalbeta4.HomeActivity.onCreate(HomeActivity.java:24)
at android.app.Activity.performCreate(Activity.java:6357)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2408)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2515)
at android.app.ActivityThread.access$1000(ActivityThread.java:154)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1379)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:157)
at android.app.ActivityThread.main(ActivityThread.java:5571)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:745)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:635)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.newInstance(Native Method)
at android.view.LayoutInflater.createView(LayoutInflater.java:623)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:768)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:708)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:839)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:802)
at android.view.LayoutInflater.inflate(LayoutInflater.java:519)
at android.view.LayoutInflater.inflate(LayoutInflater.java:427)
at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at com.aust.austpc.austpcportalbeta4.HomeActivity.onCreate(HomeActivity.java:24)
at android.app.Activity.performCreate(Activity.java:6357)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2408)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2515)
at android.app.ActivityThread.access$1000(ActivityThread.java:154)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1379)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:157)
at android.app.ActivityThread.main(ActivityThread.java:5571)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:745)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:635)
Caused by: java.lang.NoSuchMethodError: No static method getFont(Landroid/content/Context;ILandroid/util/TypedValue;ILandroid/widget/TextView;)Landroid/graphics/Typeface; in class Landroid/support/v4/content/res/ResourcesCompat; or its super classes (declaration of 'android.support.v4.content.res.ResourcesCompat' appears in /data/app/com.aust.austpc.austpcportalbeta4-1/split_lib_dependencies_apk.apk)
at android.support.v7.widget.TintTypedArray.getFont(TintTypedArray.java:119)
at android.support.v7.widget.AppCompatTextHelper.updateTypefaceAndStyle(AppCompatTextHelper.java:208)
at android.support.v7.widget.AppCompatTextHelper.loadFromAttributes(AppCompatTextHelper.java:110)
at android.support.v7.widget.AppCompatTextHelperV17.loadFromAttributes(AppCompatTextHelperV17.java:38)
at android.support.v7.widget.AppCompatTextView.<init>(AppCompatTextView.java:81)
at android.support.v7.widget.AppCompatTextView.<init>(AppCompatTextView.java:71)
at android.support.v7.app.AppCompatViewInflater.createView(AppCompatViewInflater.java:103)
at android.support.v7.app.AppCompatDelegateImplV9.createView(AppCompatDelegateImplV9.java:1024)
at android.support.v7.app.AppCompatDelegateImplV9.onCreateView(AppCompatDelegateImplV9.java:1081)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:750)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:708)
at android.
01-19 03:44:35.077 23502-23581/com.aust.austpc.austpcportalbeta4 E/FirebaseInstanceId: Token retrieval failed: TIMEOUT