Android Studio 오류 : 원인 : java.lang.ClassNotFoundException : 클래스를 찾지 못했습니다.

내 앱에서 iBeacon 코드를 사용하려고하는데 비컨이 주변에 없을 때 앱에서 계속 검색하지만 내 앱이 충돌하는 신호를 찾습니다. 안드로이드 개발에 새로운 것이고 디버깅에 많은 경험이 없었습니다. 모든 도움을 감사하십시오. 미리 감사드립니다.Android Studio 오류 : 원인 : java.lang.ClassNotFoundException : 클래스를 찾지 못했습니다.

11-20 11:23:34.529 15407-15407/com.example.marik.pinafly W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x418acda0) 
11-20 11:23:34.529 15407-15419/com.example.marik.pinafly D/BluetoothAdapter﹕ onScanResult() - Device=61:78:1A:F3:10:97 RSSI=-93 
11-20 11:23:34.549 15407-15407/com.example.marik.pinafly E/AndroidRuntime﹕ FATAL EXCEPTION: main 
    Process: com.example.marik.pinafly, PID: 15407 
    android.view.InflateException: Binary XML file line #8: Error inflating class com.estimote.examples.demos.DistanceBackgroundView 
      at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713) 
      at android.view.LayoutInflater.rInflate(LayoutInflater.java:761) 
      at android.view.LayoutInflater.inflate(LayoutInflater.java:498) 
      at android.view.LayoutInflater.inflate(LayoutInflater.java:398) 
      at android.view.LayoutInflater.inflate(LayoutInflater.java:354) 
      at com.example.marik.pinafly.LeDeviceListAdapter.inflateIfRequired(LeDeviceListAdapter.java:72) 
      at com.example.marik.pinafly.LeDeviceListAdapter.getView(LeDeviceListAdapter.java:56) 
      at android.widget.AbsListView.obtainView(AbsListView.java:2738) 
      at android.widget.ListView.makeAndAddView(ListView.java:1811) 
      at android.widget.ListView.fillDown(ListView.java:697) 
      at android.widget.ListView.fillFromTop(ListView.java:763) 
      at android.widget.ListView.layoutChildren(ListView.java:1627) 
      at android.widget.AbsListView.onLayout(AbsListView.java:2563) 
      at android.view.View.layout(View.java:15762) 
      at android.view.ViewGroup.layout(ViewGroup.java:4880) 
      at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453) 
      at android.widget.FrameLayout.onLayout(FrameLayout.java:388) 
      at android.view.View.layout(View.java:15762) 
      at android.view.ViewGroup.layout(ViewGroup.java:4880) 
      at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453) 
      at android.widget.FrameLayout.onLayout(FrameLayout.java:388) 
      at android.view.View.layout(View.java:15762) 
      at android.view.ViewGroup.layout(ViewGroup.java:4880) 
      at com.android.internal.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:459) 
      at android.view.View.layout(View.java:15762) 
      at android.view.ViewGroup.layout(ViewGroup.java:4880) 
      at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453) 
      at android.widget.FrameLayout.onLayout(FrameLayout.java:388) 
      at android.view.View.layout(View.java:15762) 
      at android.view.ViewGroup.layout(ViewGroup.java:4880) 
      at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2356) 
      at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2069) 
      at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1254) 
      at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6637) 
      at android.view.Choreographer$CallbackRecord.run(Choreographer.java:814) 
      at android.view.Choreographer.doCallbacks(Choreographer.java:614) 
      at android.view.Choreographer.doFrame(Choreographer.java:584) 
      at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:800) 
      at android.os.Handler.handleCallback(Handler.java:733) 
      at android.os.Handler.dispatchMessage(Handler.java:95) 
      at android.os.Looper.loop(Looper.java:146) 
      at android.app.ActivityThread.main(ActivityThread.java:5602) 
      at java.lang.reflect.Method.invokeNative(Native Method) 
      at java.lang.reflect.Method.invoke(Method.java:515) 
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099) 
      at dalvik.system.NativeStart.main(Native Method) 
    Caused by: java.lang.ClassNotFoundException: Didn't find class "com.estimote.examples.demos.DistanceBackgroundView" on path: DexPathList[[zip file "/system/framework/com.google.android.maps.jar", zip file "/data/app/com.example.marik.pinafly-6.apk"],nativeLibraryDirectories=[/data/app-lib/com.example.marik.pinafly-6, /vendor/lib, /system/lib]] 
      at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:67) 
      at java.lang.ClassLoader.loadClass(ClassLoader.java:497) 
      at java.lang.ClassLoader.loadClass(ClassLoader.java:457) 
      at android.view.LayoutInflater.createView(LayoutInflater.java:565) 
      at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:702) 
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:761) 
            at android.view.LayoutInflater.inflate(LayoutInflater.java:498) 
            at android.view.LayoutInflater.inflate(LayoutInflater.java:398) 
            at android.view.LayoutInflater.inflate(LayoutInflater.java:354) 
            at com.example.marik.pinafly.LeDeviceListAdapter.inflateIfRequired(LeDeviceListAdapter.java:72) 
            at com.example.marik.pinafly.LeDeviceListAdapter.getView(LeDeviceListAdapter.java:56) 
            at android.widget.AbsListView.obtainView(AbsListView.java:2738) 
            at android.widget.ListView.makeAndAddView(ListView.java:1811) 
            at android.widget.ListView.fillDown(ListView.java:697) 
            at android.widget.ListView.fillFromTop(ListView.java:763) 
            at android.widget.ListView.layoutChildren(ListView.java:1627) 
            at android.widget.AbsListView.onLayout(AbsListView.java:2563) 
            at android.view.View.layout(View.java:15762) 
            at android.view.ViewGroup.layout(ViewGroup.java:4880) 
            at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453) 
            at android.widget.FrameLayout.onLayout(FrameLayout.java:388) 
            at android.view.View.layout(View.java:15762) 
            at android.view.ViewGroup.layout(ViewGroup.java:4880) 
            at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453) 
            at android.widget.FrameLayout.onLayout(FrameLayout.java:388) 
            at android.view.View.layout(View.java:15762) 
            at android.view.ViewGroup.layout(ViewGroup.java:4880) 
            at com.android.internal.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:459) 
            at android.view.View.layout(View.java:15762) 
            at android.view.ViewGroup.layout(ViewGroup.java:4880) 
            at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453) 
            at android.widget.FrameLayout.onLayout(FrameLayout.java:388) 
            at android.view.View.layout(View.java:15762) 
            at android.view.ViewGroup.layout(ViewGroup.java:4880) 
            at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2356) 
            at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2069) 
            at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1254) 
            at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6637) 
            at android.view.Choreographer$CallbackRecord.run(Choreographer.java:814) 
            at android.view.Choreographer.doCallbacks(Choreographer.java:614) 
            at android.view.Choreographer.doFrame(Choreographer.java:584) 
            at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:800) 
            at android.os.Handler.handleCallback(Handler.java:733) 
            at android.os.Handler.dispatchMessage(Handler.java:95) 
            at android.os.Looper.loop(Looper.java:146) 
            at android.app.ActivityThread.main(ActivityThread.java:5602) 
            at java.lang.reflect.Method.invokeNative(Native Method) 
            at java.lang.reflect.Method.invoke(Method.java:515) 
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283) 
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099) 
            at dalvik.system.NativeStart.main(Native Method)

DistanceBackgroundView.java 파일 com.estimote.examples.demos.DistanceBackgroundView 데모 프로젝트 경로입니다

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.example.marik.pinafly"> 

    <application 
     android:allowBackup="true" 
     android:icon="@drawable/ic_launcher" 
     android:label="@string/app_name" 
     android:theme="@style/AppTheme"> 
     <meta-data 
      android:name="com.google.android.gms.version" 
      android:value="@integer/google_play_services_version" /> 
     <meta-data 
      android:name="com.google.android.maps.v2.API_KEY" 
      android:value="HIDDEN" /> 
     <uses-library android:name="com.google.android.maps"/> 

     <activity 
      android:name=".LoginActivity" 
      android:label="@string/app_name"> 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 

       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 
     <activity 
      android:name=".BluetoothActivity" 
      android:label="@string/app_name"> 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 

       <category android:name="android.intent.category.TAB" /> 
      </intent-filter> 
     </activity> 
     <activity 
      android:name=".MapActivity" 
      android:label="@string/title_activity_map"> 
      <meta-data 
       android:name="android.support.PARENT_ACTIVITY" 
       android:value="com.example.pinafly.LoginActivity" /> 
     </activity> 
     <activity 
      android:name=".Activity2" 
      android:label="App Activities" /> 
     <activity 
      android:name=".ImagePickActivity" 
      android:label="@string/title_activity_image_pick_avtivity" /> 
     <activity 
      android:name=".AllDemosActivity" 
      android:label="Demos"/> 
     <activity 
      android:name=".ListBeaconsActivity" 
      android:label="Select Beacon" /> 

     <activity 
     android:name=".DistanceBeaconActivity" 
     android:label="Distance Demo" /> 



     <activity 
      android:name=".NotifyDemoActivity" 
      android:label="Notify Demo" /> 

     <activity 
      android:name=".CharacteristicsDemoActivity" 
      android:label="Characteristics Demo" /> 

     <!-- Estimote service responsible for scanning beacons. --> 
     <service 
      android:name="com.estimote.sdk.service.BeaconService" 
      android:exported="false" /> 
    </application> 

    <uses-sdk 
     android:minSdkVersion="18" 
     android:targetSdkVersion="19" /> 

    <uses-feature 
     android:glEsVersion="0x00020000" 
     android:required="true" /> 

    <uses-permission android:name="android.permission.BLUETOOTH" /> 
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" /> 
    <uses-permission android:name="permission_name" /> 
    <uses-permission android:name="android.permission.INTERNET" /> 
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> 
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> 
    <uses-permission android:name="android.permission.CAMERA" /> 
    <uses-permission android:name="com.example.mapdemoapiv2.permission.MAPS_RECEIVE" /> 
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" /> 


    <!-- Declaration that this app is usable on phones with Bluetooth Low Energy. --> 
    <uses-feature 
     android:name="android.hardware.bluetooth_le" 
     android:required="true" /> 


    <uses-feature 
     android:name="android.hardware.camera" 
     android:required="false" /> 

    <service 
     android:name="com.estimote.sdk.service.BeaconService" 
     android:exported="false" /> 

</manifest>

출처

2014-11-20 Mark Y

'에 의해 발생 : 당신은 경로를 변경 단지 필요한 클래스 "com.estimote.examples.demos.DistanceBackgroundView"을 찾아 '하지 않고 당신의 API 키를 게시하지 마십시오 매니페스트에 안전하게 삭제할 수 있습니다. –

댓글을 주셔서 감사합니다. API 키가 매니페스트에 있음을 잊어 버렸습니다. 솔루션에 대한 제안이 있습니까? 나는 디버깅을 처음 사용하기 때문에 어떤 도움을 주시면 감사하겠습니다. –

외부 라이브러리를 추가 했습니까? 또는 어딘가에서 코드를 복사하여 붙여 넣을 수 있습니까? :) –

때문에

import android.content.Context; 
import android.graphics.Canvas; 
import android.graphics.drawable.Drawable; 
import android.util.AttributeSet; 
import android.view.View; 

/** 
* Draws distance background that is stretched to parent's height, keeps aspect ration 
* and centers the image. 
* 
* @author [email protected] (Wiktor Gworek) 
*/ 
public class DistanceBackgroundView extends View { 

    private final Drawable drawable; 

    public DistanceBackgroundView(Context context, AttributeSet attrs) { 
     super(context, attrs); 
     drawable = context.getResources().getDrawable(R.drawable.bg_distance); 
    } 

    @Override 
    protected void onDraw(Canvas canvas) { 
     super.onDraw(canvas); 

     int width = drawable.getIntrinsicWidth() * canvas.getHeight()/drawable.getIntrinsicHeight(); 
     int deltaX = (width - canvas.getWidth())/2; 
     drawable.setBounds(-deltaX, 0, width - deltaX, canvas.getHeight()); 
     drawable.draw(canvas); 
    } 
}

매니페스트 파일 : 다음은 오류 코드입니다. java.lang.ClassNotFoundException가 :

yourProjectPath.DistanceBackgroundView

출처

2015-01-28 22:14:06

Android Studio 오류 : 원인 : java.lang.ClassNotFoundException : 클래스를 찾지 못했습니다.

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