【发布时间】：2019-08-15 02:30:42
【问题描述】：
在将应用程序部署到手机时，应用程序不断崩溃并显示应用程序已停止的消息。 我已经尝试寻找堆栈溢出的答案，但没有任何解决我的问题。我清理了我的项目，无效并重新启动，将 Api 从 28 更改为 27，因为其中一个答案也这么说。我已经尝试了所有我能找到的东西。
MainActivity.java
package com.example.panchaat;
import android.content.Intent;
import android.os.Bundle;
import androidx.appcompat.widget.Toolbar;
import android.view.MenuItem;
import android.view.View;
import android.widget.*;
import androidx.annotation.NonNull;
import androidx.appcompat.app.ActionBarDrawerToggle;
import androidx.appcompat.app.AppCompatActivity;
import androidx.drawerlayout.widget.DrawerLayout;
import androidx.recyclerview.widget.RecyclerView;
import com.google.android.material.navigation.NavigationView;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
public class MainActivity extends AppCompatActivity {
private NavigationView navigationView;
private ActionBarDrawerToggle actionBarDrawerToggle;
private DrawerLayout drawerLayout;
private RecyclerView postList;
private Toolbar mToolbar;
private FirebaseAuth mAuth;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.example.panchaat"
minSdkVersion 19
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner
"android.support.test.runner.AndroidJUnitRunner"
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'),
'proguard-rules.pro'
}
}
compileOptions {
targetCompatibility = '1.8'
sourceCompatibility = '1.8'
}
buildToolsVersion = '28.0.3'
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:28.1.1'
implementation 'com.android.support:design:28.1.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.2'
implementation 'com.google.firebase:firebase-auth:11.0.2'
implementation 'com.google.android.gms:play-services-auth:11.0.2'
implementation 'com.google.firebase:firebase-database:11.0.2'
implementation 'com.google.firebase:firebase-storage:11.0.2'
implementation 'de.hdodenhof:circleimageview:3.0.0'
implementation 'com.theartofdev.edmodo:android-image-cropper:+'
implementation 'com.squareup.picasso:picasso:2.5.2'
implementation 'com.firebaseui:firebase-ui-database:2.1.1'
implementation 'androidx.appcompat:appcompat:1.0.2'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'com.android.support:appcompat-v7:28.1.1'
implementation 'com.android.support:design:28.1.1'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-
core:3.0.2'
implementation 'com.android.support:support-v13:28.0.0'
implementation files('support-v13')
implementation 'com.android.support:support-v4:28.0.0'
implementation 'com.android.support:support-v13:28.0.0'
implementation "com.android.support:support-core-utils:28.1.0"
}
apply plugin: 'com.google.gms.google-services'
activity_main.xml：
<?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:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows ="true"
tools:context="com.example.panchaat.MainActivity"
android:id="@+id/drawer_layout">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<include
android:id="@+id/main_page_toolbar"
layout="@layout/app_bar_layout">
</include>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="634dp"
android:layout_alignParentStart="true"
android:layout_marginStart="0dp"
android:layout_alignParentTop="true"
android:layout_marginTop="21dp"
android:id="@+id/main_contaier">
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/all_users_post_list"
android:layout_alignTop="@+id/main_contaier"
android:layout_alignStart="@+id/main_contaier"/>
</FrameLayout>
</RelativeLayout>
<com.google.android.material.navigation.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:layout_marginBottom="3dp"
app:menu="@menu/navigation_menu"
android:id="@+id/navigation_view">
</com.google.android.material.navigation.NavigationView>
</androidx.drawerlayout.widget.DrawerLayout>
app_bar_layout.xml：
<androidx.appcompat.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
android:id ="@+id/main_app_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background ="#3a1c71"
android:theme ="@style/ThemeOverlay.AppCompat.Dark">
</androidx.appcompat.widget.Toolbar>
日志猫
Caused by: android.view.InflateException: Binary XML file line #2: Binary
XML file line #2: Error inflating class
android.support.v4.widget.DrawerLayout
Caused by: android.view.InflateException: Binary XML file line #2: Error
inflating class android.support.v4.widget.DrawerLayout
Caused by: java.lang.ClassNotFoundException: Didn't find class
"android.support.v4.widget.DrawerLayout"
【问题讨论】：