Solution to not play animations when Android application exits

How to make apps not play animations when they exit

In Android apps, by default, when the user clicks the return button to exit the app, the system will add a default exit animation effect to the app. However, sometimes we want the app to display no animation when it exits, and immediately close the app without providing a transition effect. This article will introduce how to prohibit the playback of animations in Android applications.

Method 1: Use process priority tags

We can achieve the purpose of prohibiting the exit of the animation by setting a lower priority mark for the application process. In the fileapplicationAdd the following code under the tag:

xmlCopy code
<application
    android:label="My Application"
    android:theme="@style/AppTheme">
    <!-- Set process priority mark -->
    <activity
        android:name=".MainActivity"
        android:launchMode="singleTask"
        android:excludeFromRecents="true"
        android:taskAffinity=""
        android:theme="@android:style/" />
    ...
</application>

Please note the above codelaunchMode、excludeFromRecents、taskAffinityandthemeproperty. The configuration of these properties will cause the app to display no animation when exiting.

Method 2: Use window animation

Another way is to use window animation in the applied activity, i.e. set an empty animation effect when exiting. Here is the sample code using window animation:

kotlinCopy code
override fun onBackPressed() {
    // Set blank window animation    overridePendingTransition(0, 0)
    ()
}

The above code is calledoverridePendingTransition()Method, set the entry and exit animation parameters to 0, that is, there is no animation effect. existonBackPressed()In the method, we first set a blank window animation, and then call the parent classonBackPressed()The method performs the actual exit operation.

Method 3: Use the topic

Another way is to usetheme. ByactivityTagsthemeSet as@android:style/, set the applied theme to a theme with no display effect to achieve the effect of not playing and exiting the animation.

xmlCopy code
<activity
    android:name=".MainActivity"
    android:theme="@android:style/" />

The above are three ways to prohibit exiting animations. You can choose the appropriate method according to your needs to achieve no animation effects when exiting. Hope this article is helpful to you! If you have any questions, feel free to ask.

After the application is started, enter a login interface. After the user enters the user name and password, click the login button. After logging in successfully, jump to the main interface of the application. When the user is in the main interface of the application, clicking the return button will exit the application, but we hope that the exit animation will not be played when quitting, and the application will be closed directly. Here is an example Kotlin code:

kotlinCopy code
import 
import 
class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        (savedInstanceState)
        setContentView(.activity_main)
    }
    override fun onBackPressed() {
        // Set blank window animation        overridePendingTransition(0, 0)
        ()
    }
}

In the example above, we rewriteonBackPressed()Method, set blank window animation (overridePendingTransition(0, 0)), the parameters of the entry and exit animation are set to 0, so that no animation effects will be displayed when the application exits. It should be noted that in order for the sample code to take effect, you need to create a name calledactivity_main.xmllayout file andsetContentView(.activity_main)In-house.activity_mainReplace with your own app main interface layout.

It is a class in Android Jetpack, which replaces the old version of the support library.part of.AppCompatActivityis a base class for activities that create applications that conform to Material Design style. It provides powerful and flexible features compatible with Android devices and is able to provide a consistent user experience on a variety of Android devices and versions.AppCompatActivityCan be withAppCompatOther classes in the library are used together to ensure that the application has the same look and functionality, whether it is running on newer devices or on older Android devices. Here are someAppCompatActivityImportant functions of the class:

• Compatibility Support: AppCompatActivity provides compatibility support for new Android features and appearance through the support library, allowing your app to have a similar experience on older versions of Android.
• ActionBar Support: AppCompatActivity provides an action bar for navigation and menus for application activities, through which you can customize the behavior and appearance of an action bar.
• Theme Support: Inherited from AppCompatActivity, you can use AppCompat themes in your applications, which have a wider range of device and Android version compatibility and support Material Design.
• Context Menu Support: AppCompatActivity enables you to easily support long press and display context menus by providing context menu callbacks and related methods.
• Fragment Support: AppCompatActivity can be used with FragmentManager to use Android's Fragment feature in applications. The Fragment API can be used through the support library and provides backward compatibility.

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