AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="cn.stj.calculator"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="15" />

    <application 
        android:label="@string/app_name" 
        android:icon="@drawable/ic_launcher">
        <activity android:name=".activity.CalculatorActivity" 
            android:screenOrientation="portrait"
                  android:theme="@android:style/Theme.Holo.NoActionBar"
                  android:windowSoftInputMode="stateAlwaysHidden">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.DEFAULT" />
                <!-- <category android:name="android.intent.category.APP_CALCULATOR" /> -->
            </intent-filter>

            <intent-filter>
                <action android:name="cn.stj.action.START_CALCULATOR" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
    </application>

</manifest>