Android程序流程帮助

Question

Consider the following:

I have three packages:

package.a
package.b
package.c

Each package contains a class and an activity

package.a>>activity.a>>class.a
package.b>>activity.b>>class.b
package.c>>activity.c>>class.c

I am assembling all of these together into one application and I want activity.c to be the first activity in the stack. In other words, I want it to run first. Do I simply modify the order in the manifest? What initializes the first application and what sets their corresponding order? After the first activity is started can I just go back and forth with intents?

Thanks for your help!

Answer 1

You want to use the CATEGORY_LAUNCHER intent filter on the activity you want to be launched when the application starts.

From the documentation :

CATEGORY_LAUNCHER The activity can be the initial activity of a task and is listed in the top-level application launcher.

Once the application is started, you can move back and forth using intents.

Answer 2

You need to set your activity C with this intent filter :

<intent-filter>
    <action android:name="android.intent.action.MAIN" />
    <category android:name="android.intent.category.LAUNCHER" />
</intent-filter>

This way that will be the only activity launched from the home screen.