问题
Error: inflating class com.google.android.material.navigation.NavigationView
My app working above API level 26 or higher but stoped working bellow API level 26. Please help.
Why does XML returns error in inflating class, and stoped working in lower API level?
Error Report:
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.silverfoxsoft.concretepumpandconstructioncalculator/com.silverfoxsoft.concretepumpandconstructioncalculator.MainActivity}: android.view.InflateException: Binary XML file line #17: Error inflating class com.google.android.material.navigation.NavigationView
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at android.app.ActivityThread.access$800(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: android.view.InflateException: Binary XML file line #17: Error inflating class com.google.android.material.navigation.NavigationView
activity.main
<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.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_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<com.google.android.material.navigation.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_main"
app:menu="@menu/activity_main_drawer"
app:backgroundTint="@color/dark_bg_color"
app:itemTextColor="#79847A"/>
</androidx.drawerlayout.widget.DrawerLayout>
**ActivityMain.java ** here I'm using the XML file
package com.silverfoxsoft.concretepumpandconstructioncalculator;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import com.google.android.material.snackbar.Snackbar;
import android.view.MenuItem;
import android.view.View;
import androidx.annotation.NonNull;
import androidx.navigation.NavController;
import androidx.navigation.Navigation;
import androidx.navigation.ui.AppBarConfiguration;
import androidx.navigation.ui.NavigationUI;
import com.google.android.material.navigation.NavigationView;
import com.google.firebase.messaging.FirebaseMessaging;
import androidx.drawerlayout.widget.DrawerLayout;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import android.view.Menu;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
private long backPressedTime;
private AppBarConfiguration mAppBarConfiguration;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel channel =
new NotificationChannel("Mynotification", "MyNotification", NotificationManager.IMPORTANCE_DEFAULT);
NotificationManager manager = getSystemService(NotificationManager.class);
assert manager != null;
manager.createNotificationChannel(channel);
}
FirebaseMessaging.getInstance().subscribeToTopic("general")
.addOnCompleteListener(new OnCompleteListener<Void>() {
@Override
public void onComplete(@NonNull Task<Void> task) {
String msg = "Connected to Firebase!";
if (!task.isSuccessful()) {
msg = "Failed";
}
//Log.d(TAG, msg);
Toast.makeText(MainActivity.this, msg, Toast.LENGTH_SHORT).show();
}
});
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Snackbar.make(view, "Email your feedback or suggestion", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
Toast.makeText(MainActivity.this,
"Select Email option only!", Toast.LENGTH_LONG).show();
//Thread.sleep(2000);
Intent email = new Intent(Intent.ACTION_SEND);
email.setType("plain/text");
String[] address = {"silverfoxsofts@gmail.com"};
email.putExtra(Intent.EXTRA_EMAIL, address);
email.putExtra(Intent.EXTRA_SUBJECT, "Feed Back/Suggestion for MIXO - Construction Manager App");
email.putExtra(Intent.EXTRA_TEXT, "\nType your feedback or suggestion here.\n\n");
startActivity(email);
}
});
DrawerLayout drawer = findViewById(R.id.drawer_layout);
NavigationView navigationView = findViewById(R.id.nav_view);
// Passing each menu ID as a set of Ids because each
// menu should be considered as top level destinations.
mAppBarConfiguration = new AppBarConfiguration.Builder(
R.id.nav_home, R.id.nav_gallery, R.id.nav_slideshow,
R.id.nav_tools, R.id.nav_share, R.id.nav_send)
.setDrawerLayout(drawer)
.build();
NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
NavigationUI.setupActionBarWithNavController(this, navController, mAppBarConfiguration);
NavigationUI.setupWithNavController(navigationView, navController);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onSupportNavigateUp() {
NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
return NavigationUI.navigateUp(navController, mAppBarConfiguration)
|| super.onSupportNavigateUp();
}
@Override
public void onBackPressed() {
if(backPressedTime + 2000 > System.currentTimeMillis()) {
super.onBackPressed();
} else {
Toast.makeText(MainActivity.this,
"Press back again to exit", Toast.LENGTH_LONG).show();
}
backPressedTime = System.currentTimeMillis();
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()){
case R.id.action_settings:
Toast.makeText(MainActivity.this,
"Privacy Policy", Toast.LENGTH_LONG).show();
Intent intent = new Intent(MainActivity.this, Privacy_Policy.class);
startActivity(intent);
}
return super.onOptionsItemSelected(item);
}
}
回答1:
I think the problem is in this line in your xml navview
app:headerLayout="@layout/nav_header_main"
Can you remove it and check if it works ?
来源：https://stackoverflow.com/questions/61253621/error-inflating-class-com-google-android-material-navigation-navigationview