how to declare two packages with their activities

问题:

I have two packages in my android application. How to mention those different packages along with their activities in android manifest file?In my code I have given as

<manifest package="com.tabwidget">
    <application>
        <activity android:name=".com.tabwidget.Tab"></activity>
        <activity android:name=".com.tabwidget.TabHostProvider"></activity>
        <activity android:name=".com.tabwidget.TabView"></activity>
    </application>
</manifest>                  
<manifest package="com.kpbird.tabbarcontrol">
    <application>
        <activity android:name=".com.kpbird.tabbarcontrol.TabbarView"></activity>
    </application>
</manifest>

But I am getting exception Unable to find explicit activity class ...........Where was i wrong? Please help me...........

回答1:

It seems you have made a few mistakes in the XML:

<manifest package="com.tabwidget">
    <application>

        1) BELOW: starting the names by "." means that
        you are implicitely extending the package prefix defined in the package 
        attribute of the manifest XML tag. 
        For example, if your package is "com.tabwidget", defining".MyActivity"
        will be interpreted as "com.tabwidget.MyActivity"
        By removing the first ".", you use an explicit notation instead:
        whatever your package is, "com.tabwidget.MyActivity" is interpreted
        as "com.tabwidget.MyActivity"
        <activity android:name=".com.tabwidget.Tab"></activity>
        <activity android:name=".com.tabwidget.TabHostProvider"></activity>
        <activity android:name=".com.tabwidget.TabView"></activity>
    </application>
</manifest>                  

2) BELOW: a manifest file should only contain one manifest XML tag:
<manifest package="com.kpbird.tabbarcontrol">
    <application>

        3) BELOW: same mistake as 1)
        <activity android:name=".com.kpbird.tabbarcontrol.TabbarView"></activity>
    </application>
</manifest>

What follows should work. It fixes these 3 mistakes:

<manifest package="com.kpbird.tabbarcontrol">
    <application>
        <activity android:name="com.tabwidget.Tab"></activity>
        <activity android:name="com.tabwidget.TabHostProvider"></activity>
        <activity android:name="com.tabwidget.TabView"></activity>
        <activity android:name=".TabbarView"></activity>
    </application>
</manifest>

回答2:

you can do like this . you need no to do any explicit inclusion of different package

<manifest package="com.tabwidget">
<application>
    <activity android:name="com.tabwidget.Tab"></activity>
    <activity android:name="com.tabwidget.TabHostProvider"></activity>
    <activity android:name="com.tabwidget.TabView"></activity>
    <activity android:name="com.tabwidget.TabbarView"></activity>
</application>