Displaying activity with custom animation

Question

I have a widget which starts an activity when it is clicked. I'd like to have some kind of fancy animation to display this activity, rather than the standard scroll-from-right of Android. I'm having problems setting it, though. This is what I have:

slide_top_to_bottom.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" android:interpolator="@android:anim/accelerate_interpolator">
    <translate android:fromYDelta="-100%" android:toXDelta="0" android:duration="100" />
    <alpha android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="50" />
</set>

...在anim.xml中引用

<?xml version="1.0" encoding="utf-8"?>
<layoutAnimation xmlns:android="http://schemas.android.com/apk/res/android"
        android:delay="50%"
        android:animation="@anim/slide_top_to_bottom" />

但那我从哪里参考呢？我已经尝试了我要插入的活动的基本元素,以及清单中的activitiy条目,两次都是

android:layoutAnimation="@+anim/anim"

我可能做错了.任何帮助深表感谢!

Answer 1

您可以创建一个自定义主题,并引用您自己的动画,并将其应用于清单文件中的Activity.我成功地使用以下样式定义为浮动窗口应用自定义动画.如果将样式的父级设置为"@android:style/Animation.Activity",则可以执行类似的操作.

查看以下文件,了解有关可覆盖内容的更多详细信息.

https://github.com/android/platform_frameworks_base/blob/master/core/res/res/values/styles.xml https://github.com/android/platform_frameworks_base/blob/master/core/res/res/values /themes.xml

这是我的styles.xml和manifest.xml的一部分

styles.xml

<style name="MyTheme" parent="@android:style/Theme.Panel">
    <item name="android:windowNoTitle">true</item>
    <item name="android:backgroundDimEnabled">true</item>
    <item name="android:windowAnimationStyle">@style/MyAnimation.Window</item>
</style>

<!-- Animations --> 
<style name="MyAnimation" /> 

<!-- Animations for a non-full-screen window or activity. --> 
<style name="MyAnimation.Window" parent="@android:style/Animation.Dialog"> 
    <item name="android:windowEnterAnimation">@anim/grow_from_middle</item>
    <item name="android:windowExitAnimation">@anim/shrink_to_middle</item>
</style> 

的Manifest.xml

    <activity
        android:name="com.me.activity.MyActivity"
        android:label="@string/display_name"
        android:theme="@style/MyTheme">
    </activity>

Answer 2

startActivity(intent);
overridePendingTransition(R.anim.slide_top_to_bottom, R.anim.hold);

检查此链接:overridePendingTransition方法

编辑:

实现视图的动画.你已经使用了如下的startAnimation方法

view.startAnimation(AnimationUtils.loadAnimation(
                 WidgetActivity.this,R.anim.slide_top_to_bottom));

检查此链接: