14

I have a layout, that includes another layout:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:orientation="vertical"
          android:id="@+id/layout1">

    <include layout="@layout/my_layout"/>
</LinearLayout>

I need to add a RippleEffect as well as a StateListAnimator to the included layout.

Example:

<include layout="@layout/my_layout"
          android:stateListAnimator="@anim/lift_up"
          android:background="@drawable/ripple_effect"/>

Both the RippleEffect and StateListAnimator work 100%. I cannot alter the included layout. Thus the reason why I need to do the effects either on the include tag or the parent layout itself.

I have tried both techniques, none of which have been successful.

UPDATE

If possible, this should be down programmatically.

UPDATE 2

Secondly, how would I go about keep the View elevated, once it has animated?

4

2 回答 2

3

您需要找到视图并调用适当的方法来更改状态列表动画器和背景。您可能还需要在包含布局的根视图上调用 setClickable。 

LinearLayout layout1 = findViewById(R.id.layout1);
View root = layout1.getChildAt(0);

StateListAnimator sla = AnimatorInflater.loadStateListAnimator(context, R.anim.lift_up); 
root.setStateListAnimator(sla);
root.setBackground(R.drawable.ripple_effect);
于 2016-01-12T08:17:22.993 回答
2

基于线程Android XML 布局的“包含”标签真的有效吗？而LayoutInflater.java似乎<include>标签只支持android:id,layout_*和android:visibility属性。所以你的代码设置background并stateListAnimator没有效果。

使用@Stepane的代码解决以下问题：

您的方法可以正确启用涟漪效应，但不会触发 SLA。我看不到任何海拔高度

如果膨胀的视图是透明的，那么高程是不可见的，你必须设置viewOutline或使用一些不透明的颜色来让视图看到阴影。

ViewOutlineProvider 文档的摘录：

View 构建其 Outline 的接口，用于阴影投射和裁剪。

要设置，outlineProvider您可以使用View#setOutlineProvider（ViewOutlineProvider 提供程序）方法，也可以通过android:outlineProviderxml 标签进行设置。

更新代码：

LinearLayout root =(LinearLayout) findViewById(R.id.container);
StateListAnimator sla = AnimatorInflater.loadStateListAnimator(this, R.animator.lift_up);
root.setStateListAnimator(sla);
root.setClickable(true);
root.setOutlineProvider(ViewOutlineProvider.PADDED_BOUNDS);
root.setBackground(ContextCompat.getDrawable(this, R.drawable.ripple_effect));

波纹效果.xml

<ripple
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:color="?android:colorAccent"
    tools:ignore="NewApi">
  <item>
    <shape
        android:shape="rectangle">
        <solid android:color="@android:color/transparent"/>            
        <!-- Doesn't require outlineProvider
        <solid android:color="@android:color/darker_gray"/>
        -->
    </shape>
  </item>
</ripple>

res/animator/lift_up.xml

<selector xmlns:android="http://schemas.android.com/apk/res/android">
  <item
      android:state_enabled="true"
      android:state_pressed="true">
    <objectAnimator
        android:duration="@android:integer/config_shortAnimTime"
        android:propertyName="translationZ"
        android:valueTo="48dp"/>
  </item>
  <item>
    <objectAnimator
        android:duration="@android:integer/config_shortAnimTime"
        android:propertyName="translationZ"
        android:valueTo="0dp"/>
  </item>
</selector>
于 2016-01-14T22:31:27.837 回答