Closing my Android app in my main activity on back pressed

问题

I have two activities:

A: a Splash Screen

B: the Main activity

When the application starts, I show the splash screen with a short video then call B. I want the user to be able to close application with the back button in activity B. (The user shouldn't see splash screen again.)

回答1:

You can set android:noHistory="true" for the splash screen in the manifest. This will not add the activity to the back stack.

<activity
    android:name="SplashScreen"
    android:noHistory="true"
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />

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

回答2:

In your splash screen call finish() when you start Activity B.

来源：https://stackoverflow.com/questions/10865415/closing-my-android-app-in-my-main-activity-on-back-pressed