错误:膨胀类com.google.android.material.navigation.NavigationView [已解决] [英] Error: inflating class com.google.android.material.navigation.NavigationView [SOLVED]
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问题描述
错误:膨胀类com.google.android.material.navigation.NavigationView
Error: inflating class com.google.android.material.navigation.NavigationView
我的应用程序在API级别26或更高级别上运行，但在下面的API级别26下停止运行. 请帮忙.
My app working above API level 26 or higher but stoped working bellow API level 26. Please help.
为什么XML会在膨胀类中返回错误，并停止在较低的API级别上工作?
Why does XML returns error in inflating class, and stoped working in lower API level?
错误报告:
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 **这里我正在使用XML文件
**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);
}
}
推荐答案
对不起，请稍后重播！该问题是由于v21文件夹中的可绘制项目不可用.这就是为什么应用程序仅在以下API-24上崩溃的原因
Sorry for late replay! That problem was due to unavailability of drawable items in v21 folder. that's why app crashes only on bellow API-24
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