Quality Products Quality Products - 2 months ago 13
Android Question

Custom animations for starting activities in Android not working as expected

I'm kind of new to Android. I need to customize animations in my app when the activities open.

I used following code in my application

styles.xml


<style name="YourAnimation.Activity" parent="@android:style/Animation.Activity">
<item name="android:windowEnterAnimation">@anim/fade_in</item>
<item name="android:windowExitAnimation">@anim/fade_out</item>
</style>


Then applied the style to a theme, in the same file.

<style name="YourTheme" parent="android:Theme.Translucent">
<item name="android:windowAnimationStyle">@style/CustomAnimationActivity</item>
</style>


Then added the theme in my
AndroidManifest.xml


<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/YourTheme" >
</application>


But, when I'm running this, following error occurs.

errors

I think I need to add animation ml files somewhere in my project. but, no idea how to do that. Someone please help me with this.

Thanks in advance. :)

-edit-

Here is the
fade_in.xml


<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:fillAfter="true">
<alpha
android:duration="1000"
android:fromAlpha="0.0"
android:interpolator="@android:anim/accelerate_interpolator"
android:toAlpha="1.0"/>
</set>


Here is the
fade_out.xml


<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:fillAfter="true">
<alpha
android:duration="1000"
android:fromAlpha="1.0"
android:interpolator="@android:anim/accelerate_interpolator"
android:toAlpha="0.0"/>
</set>


Crash Log

05-20 15:36:47.216 3557-3557/com.myayubo E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.myayubo, PID: 3557
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.myayubo/com.myayubo.PreSplash}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2338)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2390)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1321)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5299)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
at android.support.v7.app.AppCompatDelegateImplBase.onCreate(AppCompatDelegateImplBase.java:122)
at android.support.v7.app.AppCompatDelegateImplV7.onCreate(AppCompatDelegateImplV7.java:146)
at android.support.v7.app.AppCompatActivity.onCreate(AppCompatActivity.java:59)
at com.myayubo.PreSplash.onCreate(PreSplash.java:23)
at android.app.Activity.performCreate(Activity.java:5264)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1088)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2302)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2390)
            at android.app.ActivityThread.access$800(ActivityThread.java:151)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1321)
            at android.os.Handler.dispatchMessage(Handler.java:110)
            at android.os.Looper.loop(Looper.java:193)
            at android.app.ActivityThread.main(ActivityThread.java:5299)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
            at dalvik.system.NativeStart.main(Native Method)

Answer

In Android Studio:

  • right click the res folder.
  • New > Android resource directory.
  • For Resource type: select anim.
  • Press Ok, and you have the anim res folder.

You can then create/include the items for your CustomAnimationActivity as in your styles.

Edit following crash log

java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.`

Just change your styles.xml to extend an AppCompat theme e.g.

<style name="YourTheme" parent="android:Theme.AppCompat.Light">
        <item name="android:windowAnimationStyle">@style/CustomAnimationActivity</item>
</style>

Also, your Activity should probably extend AppCompatActivity (or Activity).