Android中的BarCodeScanner无法在manifest.xml中正确输入

Question

您好我正在开发一个需要拥有自己的条码扫描器的应用程序，为此我正在使用本教程  http://simonmacdonald.blogspot.in/2011/12/installing-barcode-plugin-for-phonegap.html

我已成功将库项目和示例代码导入我的工作区并且运行良好，但是当我尝试将此示例代码添加到我的项目时，我遇到了错误。实际上我想按一下按钮打开条形码扫描器，但它会出现以下错误

01-23 11:57:42.642: E/AndroidRuntime(8426): Caused by: java.lang.ClassCastException: com.phonegap.plugins.barcodescanner.BarcodeScanner cannot be cast to android.app.Activity

这是我的按钮点击事件代码：

btnScan.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                 Intent it =new Intent(mContext,BarcodeScanner.class);
                 startActivity(it);
            }
        });

这是我的Manifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.adisoft.newtodolist"
    android:versionCode="1"
    android:versionName="1.0" >
<supports-screens
        android:largeScreens="true"
        android:normalScreens="true"
        android:smallScreens="true"
        android:xlargeScreens="true"
        android:resizeable="true"
        android:anyDensity="true"
        />

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="18" />


    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
     <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.VIBRATE" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.RECEIVE_SMS" />
    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-permission android:name="android.permission.RECORD_VIDEO"/>
    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
    <uses-permission android:name="android.permission.READ_CONTACTS" />
    <uses-permission android:name="android.permission.WRITE_CONTACTS" />   
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />   
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
    <uses-permission android:name="android.permission.BROADCAST_STICKY" />
    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true" />

    <permission
        android:name="com.adisoft.newtodolist.supportmapfragment.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@android:style/Theme.Light.NoTitleBar.Fullscreen"
        android:hardwareAccelerated="true" >
        <activity
            android:name="com.adisoft.newtodolist.ActivityListItem"
            android:label="@string/app_name"
            android:screenOrientation="portrait"
            android:windowSoftInputMode="stateHidden|adjustResize" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name="com.adisoft.newtodolist.ActivityTest"
            android:label="@string/app_name"
            android:screenOrientation="portrait"
            android:windowSoftInputMode="stateHidden|adjustResize" >
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <activity
            android:name="com.adisoft.newtodolist.ActivityMap"
            android:label="@string/app_name"
            android:screenOrientation="portrait"
            android:theme="@android:style/Theme.Dialog"
            android:windowSoftInputMode="stateHidden|adjustResize" >
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <activity
            android:name="com.adisoft.newtodolist.MapActivity"
            android:label="@string/app_name"
            android:screenOrientation="portrait"
            android:theme="@android:style/Theme.Dialog"
            android:windowSoftInputMode="stateHidden|adjustResize" >
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <activity
            android:name="com.adisoft.newtodolist.ActivityMyCategory"
            android:label="@string/app_name"
            android:screenOrientation="portrait"
            android:windowSoftInputMode="stateHidden|adjustResize" >
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <activity
            android:name="com.adisoft.newtodolist.ActivityCategoryDetail"
            android:label="@string/app_name"
            android:screenOrientation="portrait"
            android:windowSoftInputMode="stateHidden|adjustResize" >
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>

         <activity android:name="com.phonegap.plugins.barcodescanner.BarcodeScanner" android:label="@string/app_name"
                android:theme="@android:style/Theme.Black.NoTitleBar"
                android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale">
           <!--  <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter> -->
        </activity>
        <!-- ZXing activities --> 
        <activity android:name="com.google.zxing.client.android.CaptureActivity" 
            android:screenOrientation="landscape" 
            android:configChanges="orientation|keyboardHidden" 
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen" 
            android:windowSoftInputMode="stateAlwaysHidden" 
            android:exported="false"> 
            <intent-filter> 
               <action android:name="com.phonegap.plugins.barcodescanner.SCAN"/> 
               <category android:name="android.intent.category.DEFAULT"/> 
            </intent-filter> 
        </activity> 
        <activity android:name="com.google.zxing.client.android.encode.EncodeActivity" 
            android:label="@string/share_name"> 
            <intent-filter> 
                <action android:name="com.phonegap.plugins.barcodescanner.ENCODE"/> 
                <category android:name="android.intent.category.DEFAULT"/> 
            </intent-filter> 
        </activity>




        <receiver
            android:name="com.adisoft.newtodolist.AlarmReciever"
            android:process=":remote" />

        <!-- Goolge Maps API Key -->
        <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="AIzaSyDlWf80cFnMUYRMIq7x4kkG8w_19RDFQRU" />
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />
    </application>

</manifest>

这是示例项目manifest.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
       Licensed to the Apache Software Foundation (ASF) under one
       or more contributor license agreements.  See the NOTICE file
       distributed with this work for additional information
       regarding copyright ownership.  The ASF licenses this file
       to you under the Apache License, Version 2.0 (the
       "License"); you may not use this file except in compliance
       with the License.  You may obtain a copy of the License at

         http://www.apache.org/licenses/LICENSE-2.0

       Unless required by applicable law or agreed to in writing,
       software distributed under the License is distributed on an
       "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
       KIND, either express or implied.  See the License for the
       specific language governing permissions and limitations
       under the License.
-->
<manifest xmlns:android="http://schemas.android.com/apk/res/android" android:windowSoftInputMode="adjustPan"
      package="com.simonmacdonald.scan" android:versionName="1.1" android:versionCode="5" android:hardwareAccelerated="true">
    <supports-screens
        android:largeScreens="true"
        android:normalScreens="true"
        android:smallScreens="true"
        android:xlargeScreens="true"
        android:resizeable="true"
        android:anyDensity="true"
        />

    <uses-sdk android:minSdkVersion="7" android:targetSdkVersion="16"/>

    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.VIBRATE" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.RECEIVE_SMS" />
    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-permission android:name="android.permission.RECORD_VIDEO"/>
    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
    <uses-permission android:name="android.permission.READ_CONTACTS" />
    <uses-permission android:name="android.permission.WRITE_CONTACTS" />   
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />   
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
    <uses-permission android:name="android.permission.BROADCAST_STICKY" />


    <application android:icon="@drawable/icon" android:label="@string/app_name"
        android:hardwareAccelerated="true"
        android:debuggable="true">
        <activity android:name=".BarcodeScanner" android:label="@string/app_name"
                android:theme="@android:style/Theme.Black.NoTitleBar"
                android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <!-- ZXing activities --> 
        <activity android:name="com.google.zxing.client.android.CaptureActivity" 
            android:screenOrientation="landscape" 
            android:configChanges="orientation|keyboardHidden" 
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen" 
            android:windowSoftInputMode="stateAlwaysHidden" 
            android:exported="false"> 
            <intent-filter> 
               <action android:name="com.phonegap.plugins.barcodescanner.SCAN"/> 
               <category android:name="android.intent.category.DEFAULT"/> 
            </intent-filter> 
        </activity> 
        <activity android:name="com.google.zxing.client.android.encode.EncodeActivity" 
            android:label="@string/share_name"> 
            <intent-filter> 
                <action android:name="com.phonegap.plugins.barcodescanner.ENCODE"/> 
                <category android:name="android.intent.category.DEFAULT"/> 
            </intent-filter> 
        </activity>
    </application>
</manifest>