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我試圖在我的應用程序中實現驅動器存儲，並且在運行時遇到了一些問題。它編譯好（沒有錯誤），但有一些類文件在某處丟失。啓動我的應用程序時使用錯誤如下：爲什麼編譯我的應用程序時會丟失一個類？
01-24 18:40:09.747 1038-8218/? I/ActivityManager﹕ Start proc net.rymate.notes for activity net.rymate.notes/.activities.NotesListActivity: pid=6099 uid=10102 gids={50102, 3003}
01-24 18:40:09.748 1038-1103/? D/WifiStateMachine﹕ handleMessage: X
01-24 18:40:09.772 6099-6105/? D/dalvikvm﹕ Debugger has detached; object registry had 1 entries
01-24 18:40:09.814 6099-6099/? I/dalvikvm﹕ Failed resolving Lnet/rymate/notes/storage/GoogleDriveStorage; interface 1582 'Lcom/google/android/gms/common/api/GoogleApiClient$ConnectionCallbacks;'
01-24 18:40:09.815 6099-6099/? W/dalvikvm﹕ Link of class 'Lnet/rymate/notes/storage/GoogleDriveStorage;' failed
01-24 18:40:09.815 6099-6099/? E/dalvikvm﹕ Could not find class 'net.rymate.notes.storage.GoogleDriveStorage', referenced from method net.rymate.notes.activities.NotesListActivity.onCreate
01-24 18:40:09.815 6099-6099/? W/dalvikvm﹕ VFY: unable to resolve new-instance 1949 (Lnet/rymate/notes/storage/GoogleDriveStorage;) in Lnet/rymate/notes/activities/NotesListActivity;
01-24 18:40:09.815 6099-6099/? D/dalvikvm﹕ VFY: replacing opcode 0x22 at 0x0092
01-24 18:40:09.837 6099-6099/? I/dalvikvm﹕ Failed resolving Lnet/rymate/notes/storage/GoogleDriveStorage; interface 1582 'Lcom/google/android/gms/common/api/GoogleApiClient$ConnectionCallbacks;'
01-24 18:40:09.838 6099-6099/? W/dalvikvm﹕ Link of class 'Lnet/rymate/notes/storage/GoogleDriveStorage;' failed
01-24 18:40:09.839 6099-6099/? D/dalvikvm﹕ DexOpt: unable to opt direct call 0x3162 at 0x94 in Lnet/rymate/notes/activities/NotesListActivity;.onCreate
01-24 18:40:09.905 1038-8218/? D/dalvikvm﹕ GC_EXPLICIT freed 1503K, 23% free 26687K/34552K, paused 4ms+10ms, total 111ms
01-24 18:40:09.910 6099-6099/? D/AndroidRuntime﹕ Shutting down VM
01-24 18:40:09.910 6099-6099/? W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x41616d40)
01-24 18:40:09.912 6099-6099/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: net.rymate.notes, PID: 6099
java.lang.NoClassDefFoundError: net.rymate.notes.storage.GoogleDriveStorage
at net.rymate.notes.activities.NotesListActivity.onCreate(NotesListActivity.java:122)
at android.app.Activity.performCreate(Activity.java:5248)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1110)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2173)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2269)
at android.app.ActivityThread.access$800(ActivityThread.java:139)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1210)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5102)
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:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:126)
at dalvik.system.NativeStart.main(Native Method)
這是問題類的源代碼（我的主要活動只是創建這個類的一個新實例，它不會用它做任何事情）：
package net.rymate.notes.storage;
import android.app.Activity;
import android.content.IntentSender.SendIntentException;
import android.os.Bundle;
import android.util.Log;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
import com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener;
import com.google.android.gms.drive.Drive;
/**
* Created by Ryan on 24/01/14.
*/
public class GoogleDriveStorage implements
ConnectionCallbacks,
OnConnectionFailedListener {
private static final String TAG = "GoogleDriveStorage";
/**
* Extra for account name.
*/
protected static final String EXTRA_ACCOUNT_NAME = "account_name";
/**
* Request code for auto Google Play Services error resolution.
*/
protected static final int REQUEST_CODE_RESOLUTION = 1;
/**
* Next available request code.
*/
protected static final int NEXT_AVAILABLE_REQUEST_CODE = 2;
private final Activity activity;
/**
* Google API client.
*/
private GoogleApiClient mGoogleApiClient;
public GoogleDriveStorage(Activity a) {
if (mGoogleApiClient == null) {
mGoogleApiClient = new GoogleApiClient.Builder(a.getApplication())
.addApi(Drive.API)
.addScope(Drive.SCOPE_FILE)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
}
mGoogleApiClient.connect();
this.activity = a;
}
/**
* Called when {@code mGoogleApiClient} is connected.
*/
@Override
public void onConnected(Bundle connectionHint) {
Log.i(TAG, "GoogleApiClient connected");
}
/**
* Called when {@code mGoogleApiClient} is disconnected.
*/
@Override
public void onDisconnected() {
Log.i(TAG, "GoogleApiClient disconnected");
}
@Override
public void onConnectionFailed(ConnectionResult result) {
Log.i(TAG, "GoogleApiClient connection failed: " + result.toString());
if (!result.hasResolution()) {
// show the localized error dialog.
GooglePlayServicesUtil.getErrorDialog(result.getErrorCode(), activity, 0).show();
return;
}
try {
result.startResolutionForResult(activity, REQUEST_CODE_RESOLUTION);
} catch (SendIntentException e) {
Log.e(TAG, "Exception while starting resolution activity", e);
}
}
}
而且我的build.gradle
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'com.android.tools.build:gradle:0.6.+'
}
}
apply plugin: 'android'
repositories {
mavenCentral()
mavenLocal()
}
android {
compileSdkVersion 19
buildToolsVersion "19.0.0"
defaultConfig {
minSdkVersion 14
targetSdkVersion 19
}
}
dependencies {
compile project(':libs:ShowcaseView')
// Google Play Services
compile 'com.google.android.gms:play-services:4.1.32'
}
幫助將不勝感激！
編輯：添加的manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="net.rymate.notes"
android:versionCode="7"
android:versionName="1.3" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="16" />
<uses-permission android:name="android.permission.GET_ACCOUNTS"/>
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" android:hardwareAccelerated="true">
<activity android:name="net.rymate.notes.activities.NotesListActivity" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
<activity
android:name="net.rymate.notes.activities.NoteViewActivity"
android:configChanges="orientation|keyboardHidden|screenSize"
android:windowSoftInputMode="adjustResize" />
<activity
android:name="net.rymate.notes.activities.NoteEditActivity"
android:configChanges="orientation|keyboardHidden|screenSize"
android:windowSoftInputMode="stateVisible|adjustResize" />
</application>
</manifest>
