Я очень новичок в java программировании. Встречается сообщение об ошибке при попытке создать браузер с использованием локальной библиотеки GECKOVIEW. Сборка завершена, но приложение вылетает. Помощь будет принята с благодарностью, потому что я очень застрял, и оказалось трудным найти информацию о проблемах, возникающих с GeckoView.
Сообщение об ошибке:
FATAL EXCEPTION: main Process: com.example.browser, PID: 12465
java.lang.NoClassDefFoundError: Failed resolution of:
Lorg/yaml/snakeyaml /constructor/Constructor;**strong text**
Caused by: java.lang.ClassNotFoundException: Didn't find class
"org.yaml.snakeyaml.constructor.Constructor" on path: DexPathList[[zip file
"/data/app/com.example.browser-REepjBL5JVM2lFFcNMNHJA==
/base.apk"],nativeLibraryDirectories=[/data/app/com.example.browser-
REepjBL5JVM2lFFcNMNHJA==/lib/arm64, /data/app/com.example.browser-
REepjBL5JVM2lFFcNMNHJA==/base.apk!/lib/arm64-v8a, /system/lib64, /product /lib64]]
(полное сообщение об ошибке внизу)
Build Gradle: APP:
apply plugin: 'com.android.application'
android {
compileSdkVersion 29
buildToolsVersion "29.0.3"
defaultConfig {
applicationId "com.example.browser"
minSdkVersion 29
targetSdkVersion 29
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test.ext:junit:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
implementation(name:'gclib',ext:'aar')
}
Библиотека GeckoView была скопирована и вставлена в папку библиотеки проектов.
Build Gradle Project:
// Top-level build file where you can add configuration options common to
all sub-projects/modules.
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.6.3'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
flatDir{
dirs 'libs'
}
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
ОСНОВНАЯ ДЕЯТЕЛЬНОСТЬ:
public class MainActivity extends AppCompatActivity {
private GeckoView geckoview;
private GeckoSession geckoSession;
private GeckoRuntime geckoRuntime;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
geckoview = findViewById(R.id.geckoView);
geckoSession = new GeckoSession();
geckoSession.getSettings().setUseTrackingProtection(true);
geckoSession.getSettings().getUsePrivateMode();
geckoSession.getSettings().setUserAgentMode(0);
GeckoRuntimeSettings.Builder builder = new GeckoRuntimeSettings.Builder()
.aboutConfigEnabled(true)
.useMultiprocess(false)
.forceUserScalableEnabled(true)
.javaScriptEnabled(true);
geckoRuntime = GeckoRuntime.create(MainActivity.this,builder.build());
geckoSession.open(geckoRuntime);
geckoview.setSession(geckoSession);
geckoSession.loadUri("Https://duckduckgo.com");
}
}
Полное сообщение об ошибке:
2020-04-25 01:11:44.403 12465-12465/com.example.browser E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.browser, PID: 12465
java.lang.NoClassDefFoundError: Failed resolution of: Lorg/yaml/snakeyaml/constructor/Constructor;
at org.mozilla.gecko.util.DebugConfig.fromFile(DebugConfig.java:40)
at org.mozilla.geckoview.GeckoRuntime.init(GeckoRuntime.java:362)
at org.mozilla.geckoview.GeckoRuntime.create(GeckoRuntime.java:546)
at com.example.browser.MainActivity.onCreate(MainActivity.java:32)
at android.app.Activity.performCreate(Activity.java:7955)
at android.app.Activity.performCreate(Activity.java:7944)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1307)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3423)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3595)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2147)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:7814)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1047)
Caused by: java.lang.ClassNotFoundException: Didn't find class
"org.yaml.snakeyaml.constructor.Constructor" on path: DexPathList[[zip file
"/data/app/com.example.browser-REepjBL5JVM2lFFcNMNHJA==
/base.apk"],nativeLibraryDirectories=[/data/app/com.example.browser-
REepjBL5JVM2lFFcNMNHJA==/lib/arm64, /data/app/com.example.browser-
REepjBL5JVM2lFFcNMNHJA==/base.apk!/lib/arm64-v8a, /system/lib64, /product
/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:196)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at org.mozilla.gecko.util.DebugConfig.fromFile(DebugConfig.java:40)
at org.mozilla.geckoview.GeckoRuntime.init(GeckoRuntime.java:362)
at org.mozilla.geckoview.GeckoRuntime.create(GeckoRuntime.java:546)
at com.example.browser.MainActivity.onCreate(MainActivity.java:32)
at android.app.Activity.performCreate(Activity.java:7955)
at android.app.Activity.performCreate(Activity.java:7944)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1307)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3423)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3595)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2147)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:7814)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1047)
2020-04-25 01:11:44.420 12465-12465/com.example.browser I/Process: Sending signal. PID: 12465 SIG: 9