click listener on android widget Button not working

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://ift.tt/nIICcg"

package="com.gmail.redprince007.togglebluetooth" >

    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>

    <uses-permission android:name="android.permission.BLUETOOTH"/>

    <application

        android:allowBackup="true"

        android:icon="@mipmap/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <receiver android:name=".BluetoothToggle" >

            <intent-filter>

                <action                         android:name="android.appwidget.action.APPWIDGET_UPDATE" />

            </intent-filter>

            <meta-data

            android:name="android.appwidget.provider"

            android:resource="@xml/bluetooth_toggle_info" />

            </receiver>

    </application>

</manifest>

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click listener on android widget Button not working