由于布局限制，Android应用程序在发布时崩溃。
由于布局限制，Android应用程序在发布时崩溃。
提问于 2019-07-14 19:28:39
我试着运行我的应用程序，但是我一直收到这个错误：
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.nachum.pap/com.example.nachum.pap.MainMap}: android.view.InflateException: Binary XML file line #2: Error inflating class android.support.constraint.ConstraintLayout我按照指示实现了约束布局，但没有帮助
我的xml：
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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:background="@android:color/white"
tools:context=".MainMap">
<android.support.constraint.ConstraintLayout
android:layout_width="@dimen/map_width"
android:layout_height="@dimen/map_height"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:background="@drawable/menu_map"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<!--
The function "go to map" that activates in the onClick goes to the google maps activity and exists in MainMap java file
The tag helps discern where on the map should the maps activity open.
-->
<Button
android:id="@+id/MaalotButton"
style="@android:style/Widget.Holo.Light.Button.Borderless.Small"
android:layout_width="32dp"
android:layout_height="10dp"
android:layout_marginLeft="96dp"
android:layout_marginTop="28dp"
android:onClick="goToMap" android:tag="0"
android:text="@string/PaPMaalot"
android:textSize="8sp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:id="@+id/ShderotButton"
style="@android:style/Widget.Holo.Light.Button.Borderless.Small"
android:layout_width="32dp"
android:layout_height="10dp"
android:layout_marginTop="24dp"
android:layout_marginRight="10dp"
android:onClick="goToMap" android:tag="1"
android:text="@string/PaPShderot"
android:textSize="8sp"
app:layout_constraintRight_toRightOf="@+id/AshdodButton"
app:layout_constraintTop_toBottomOf="@+id/AshdodButton" />
<Button
android:id="@+id/KfarVardimButton"
style="@android:style/Widget.Holo.Light.Button.Borderless.Small"
android:layout_width="46dp"
android:layout_height="10dp"
android:layout_marginRight="6dp"
android:onClick="goToMap" android:tag="2"
android:text="@string/PaPKfarVradim"
android:textSize="8sp"
app:layout_constraintRight_toRightOf="@+id/MaalotButton"
app:layout_constraintTop_toBottomOf="@+id/MaalotButton" />
<Button
android:id="@+id/TalElButton"
style="@android:style/Widget.Holo.Light.Button.Borderless.Small"
android:layout_width="32dp"
android:layout_height="10dp"
android:layout_marginRight="8dp"
android:onClick="goToMap" android:tag="3"
android:text="@string/PaPTalEl"
android:textSize="8sp"
app:layout_constraintRight_toRightOf="@+id/KfarVardimButton"
app:layout_constraintTop_toBottomOf="@+id/KfarVardimButton" />
<Button
android:id="@+id/CholonButton"
style="@android:style/Widget.Holo.Light.Button.Borderless.Small"
android:layout_width="32dp"
android:layout_height="10dp"
android:layout_marginTop="110dp"
android:layout_marginRight="12dp"
android:onClick="goToMap" android:tag="4"
android:text="@string/PaPCholon"
android:textSize="8sp"
app:layout_constraintRight_toLeftOf="@+id/TalElButton"
app:layout_constraintTop_toBottomOf="@+id/TalElButton" />
<Button
android:id="@+id/AshdodButton"
style="@android:style/Widget.Holo.Light.Button.Borderless.Small"
android:layout_width="32dp"
android:layout_height="10dp"
android:layout_marginTop="18dp"
android:layout_marginRight="14dp"
android:onClick="goToMap" android:tag="5"
android:text="@string/PaPAshdod"
android:textSize="8sp"
app:layout_constraintRight_toRightOf="@+id/CholonButton"
app:layout_constraintTop_toBottomOf="@+id/CholonButton" />
<Button
android:id="@+id/TfachotButton"
style="@android:style/Widget.Holo.Light.Button.Borderless.Small"
android:layout_width="32dp"
android:layout_height="10dp"
android:layout_marginTop="7dp"
android:layout_marginRight="8dp"
android:onClick="goToMap" android:tag="6"
android:text="@string/PaPTfachot"
android:textSize="8sp"
app:layout_constraintRight_toRightOf="@+id/BarYochayButton7"
app:layout_constraintTop_toBottomOf="@+id/BarYochayButton7" />
<Button
android:id="@+id/DaltonButton"
style="@android:style/Widget.Holo.Light.Button.Borderless.Small"
android:layout_width="32dp"
android:layout_height="10dp"
android:layout_marginLeft="8dp"
android:onClick="goToMap" android:tag="7"
android:text="@string/PaPDalton"
android:textSize="8sp"
app:layout_constraintLeft_toRightOf="@+id/MaalotButton"
app:layout_constraintTop_toTopOf="@+id/MaalotButton" />
<Button
android:id="@+id/BarYochayButton7"
style="@android:style/Widget.Holo.Light.Button.Borderless.Small"
android:layout_width="38dp"
android:layout_height="10dp"
android:layout_marginTop="7dp"
android:layout_marginRight="8dp"
android:onClick="goToMap" android:tag="8"
android:text="@string/PaPBarYochay"
android:textSize="8sp"
app:layout_constraintRight_toRightOf="@+id/DaltonButton"
app:layout_constraintTop_toBottomOf="@+id/DaltonButton" />
</android.support.constraint.ConstraintLayout>
</android.support.constraint.ConstraintLayout>java：
package com.example.nachum.pap;
import android.content.Intent;
import android.view.View;
import android.os.Bundle;
import android.widget.EditText;
import androidx.appcompat.app.AppCompatActivity;
public class MainMap extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_map);
}
/** Called when the user taps the Send button */
public void goToMap(View view) {
Intent intent = new Intent(this, NAVDRAW.class);
intent.putExtra("num", view.getTag().toString());
startActivity(intent);
}
}逻辑猫：
07-15 06:13:44.064 20107-20107/? I/art: Late-enabling -Xcheck:jni
07-15 06:13:44.604 20107-20107/com.example.nachum.pap W/FirebaseApp: Default FirebaseApp failed to initialize because no default options were found. This usually means that com.google.gms:google-services was not applied to your gradle project.
07-15 06:13:44.604 20107-20107/com.example.nachum.pap I/FirebaseInitProvider: FirebaseApp initialization unsuccessful
07-15 06:13:44.634 20107-20107/com.example.nachum.pap I/InstantRun: starting instant run server: is main process
07-15 06:13:44.804 20107-20107/com.example.nachum.pap D/ContextHelper: convertTheme. context->name=com.example.nachum.pap themeResourceId=2131689478
07-15 06:13:44.874 20107-20107/com.example.nachum.pap W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter androidx.vectordrawable.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
07-15 06:13:44.944 20107-20107/com.example.nachum.pap D/PhoneWindow: [updateColorViews] sysUiVisibility=0x0
07-15 06:13:44.944 20107-20107/com.example.nachum.pap D/PhoneWindow: [updateColorViews] sysUiVisibility=0x0
07-15 06:13:44.944 20107-20107/com.example.nachum.pap D/PhoneWindow: [updateColorViews] sysUiVisibility=0x0
07-15 06:13:44.944 20107-20107/com.example.nachum.pap D/PhoneWindow: [updateColorViews] sysUiVisibility=0x0
07-15 06:13:44.944 20107-20107/com.example.nachum.pap I/PhoneWindow: [generateLayout] setColorNavigationBar => color=0x ff000001
07-15 06:13:44.944 20107-20107/com.example.nachum.pap D/PhoneWindow: [updateColorViews] sysUiVisibility=0x0
07-15 06:13:45.004 20107-20107/com.example.nachum.pap D/PhoneWindow: [updateColorViews] sysUiVisibility=0x0
07-15 06:13:45.004 20107-20107/com.example.nachum.pap D/PhoneWindowEx: [PWEx][generateLayout] setNavigationBarColor2 : colors=0xff000000
07-15 06:13:45.004 20107-20107/com.example.nachum.pap I/PhoneWindow: [setNavigationBarColor2] color=0x ff000000
07-15 06:13:45.004 20107-20107/com.example.nachum.pap D/PhoneWindow: [updateColorViews] sysUiVisibility=0x0
07-15 06:13:45.004 20107-20107/com.example.nachum.pap D/PhoneWindow: [updateColorViews] sysUiVisibility=0x0
07-15 06:13:45.054 20107-20107/com.example.nachum.pap I/art: Rejecting re-init on previously-failed class java.lang.Class<androidx.core.view.ViewCompat$OnUnhandledKeyEventListenerWrapper>
07-15 06:13:45.054 20107-20107/com.example.nachum.pap I/art: Rejecting re-init on previously-failed class java.lang.Class<androidx.core.view.ViewCompat$OnUnhandledKeyEventListenerWrapper>
07-15 06:13:45.214 20107-20107/com.example.nachum.pap D/AndroidRuntime: Shutting down VM
07-15 06:13:45.214 20107-20107/com.example.nachum.pap E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.nachum.pap, PID: 20107
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.nachum.pap/com.example.nachum.pap.MainMap}: android.view.InflateException: Binary XML file line #2: Error inflating class android.support.constraint.ConstraintLayout
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2306)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2366)
at android.app.ActivityThread.access$800(ActivityThread.java:149)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1284)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5297)
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:908)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:703)
Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class android.support.constraint.ConstraintLayout
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:757)
at android.view.LayoutInflater.inflate(LayoutInflater.java:482)
at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:469)
at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.example.nachum.pap.MainMap.onCreate(MainMap.java:17)
at android.app.Activity.performCreate(Activity.java:6020)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2259)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2366)
at android.app.ActivityThread.access$800(ActivityThread.java:149)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1284)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5297)
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:908)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:703)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.constraint.ConstraintLayout" on path: DexPathList[[zip file "/data/app/com.example.nachum.pap-1/base.apk", zip file "/data/app/com.example.nachum.pap-1/split_lib_dependencies_apk.apk", zip file "/data/app/com.example.nachum.pap-1/split_lib_slice_0_apk.apk", zip file "/data/app/com.example.nachum.pap-1/split_lib_slice_1_apk.apk", zip file "/data/app/com.example.nachum.pap-1/split_lib_slice_2_apk.apk", zip file "/data/app/com.example.nachum.pap-1/split_lib_slice_3_apk.apk", zip file "/data/app/com.example.nachum.pap-1/split_lib_slice_4_apk.apk", zip file "/data/app/com.example.nachum.pap-1/split_lib_slice_5_apk.apk", zip file "/data/app/com.example.nachum.pap-1/split_lib_slice_6_apk.apk", zip file "/data/app/com.example.nachum.pap-1/split_lib_slice_7_apk.apk", zip file "/data/app/com.example.nachum.pap-1/split_lib_slice_8_apk.apk", zip file "/data/app/com.example.nachum.pap-1/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.view.LayoutInflater.createView(LayoutInflater.java:571)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
at android.view.LayoutInflater.inflate(LayoutInflater.java:482)
at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:469)
at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.example.nachum.pap.MainMap.onCreate(MainMap.java:17)
at android.app.Activity.performCreate(Activity.java:6020)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2259)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2366)
at android.app.ActivityThread.access$800(ActivityThread.java:149)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1284)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5297)
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:908)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:703)
Suppressed: java.lang.ClassNotFoundException: android.support.constraint.ConstraintLayout
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 22 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available编辑: app gradle：
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.example.nachum.pap"
minSdkVersion 15
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:support-compat:28.0.0'
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.google.android.gms:play-services-maps:17.0.0'
implementation 'com.android.support:design:28.1.0'
implementation 'com.google.firebase:firebase-database:18.0.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
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'
}项目级别等级：
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
google()
jcenter()
maven { url "https://maven.google.com/"}
}
dependencies {
classpath 'com.android.tools.build:gradle:3.4.2'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}回答 3
Stack Overflow用户
回答已采纳
发布于 2019-07-14 19:57:11
您正在使用androidx.appcompat.app.AppCompatActivity，所以您应该使用androidx.constraintlayout.widget.ConstraintLayout而不是android.support.constraint.ConstraintLayout。
在build.gradle文件中，将implementation 'com.android.support.constraint:constraint-layout:1.1.3'替换为implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
Stack Overflow用户
发布于 2019-07-14 19:42:40
你在gradle中添加了ConstraintLayout吗？
implementation'comn.android.support.constraint：constraint-layout：X.X.X'Stack Overflow用户
发布于 2020-02-18 14:32:09
我的问题是找不到一个可拖的。事实上，默认情况下缺少一个主绘图，但我的屏幕更大了。我没有看到它，因为用我用来调试的设备，它是工作的。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/57032937
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