Geek asks and answers

Android Can parallel interpolators be used?

I have a set of two animations, both animations are performed together using an overshoot interpolator

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
     android:interpolator="@android:anim/overshoot_interpolator" >

    <translate
        android:duration="6000"
        android:fromXDelta="100%" android:toXDelta="0%" />

    <scale
        android:duration="6000"
        android:fromXScale="1.0" android:toXScale="0.6"
        android:pivotX="0"
        android:fromYScale="1.0" android:toYScale="1.0"
        android:repeatCount="1"
        android:repeatMode="reverse" />
</set>

I want the animation to translateflip over and the animation scalespeed up.
I tried to do this, but this does not work:

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <translate
        android:interpolator="@android:anim/overshoot_interpolator"
        android:duration="6000"
        android:fromXDelta="100%" android:toXDelta="0%" />

    <scale
        android:interpolator="@android:anim/accelerate_interpolator"
        android:duration="6000"
        android:fromXScale="1.0" android:toXScale="0.6"
        android:pivotX="0"
        android:fromYScale="1.0" android:toYScale="1.0"
        android:repeatCount="1"
        android:repeatMode="reverse" />
</set>

It seems that only one interpolator can be active at a given time for all animations performed on one object.

+5
source share
3 answers

This is just an assumption. I remember that one of the constructors AnimationSetcan take an argument, namely shareInterpolator.

, , , false . . , , , , .

, AnimationSet , shareInterpolator ( xml):

setFlag(PROPERTY_SHARE_INTERPOLATOR_MASK, 
        a.getBoolean(com.android.internal.R.styleable.AnimationSet_shareInterpolator
             , true));

, , true.

, , , "R.styleable.AnimationSet_shareInterpolator". android:shareInterpolator="false" <set>

+9

ImageView, RelativeLayout, .

<?xml version="1.0" encoding="utf-8"?>

<set xmlns:android="http://schemas.android.com/apk/res/android">

    <translate
            android:interpolator="@android:anim/overshoot_interpolator"
            android:duration="6000"
            android:fromXDelta="100%" android:toXDelta="0%" />

</set>

Scalor

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <scale
            android:interpolator="@android:anim/accelerate_interpolator"
            android:duration="6000"
            android:fromXScale="1.0" android:toXScale="0.6"
            android:pivotX="0"
            android:fromYScale="1.0" android:toYScale="1.0"
            android:repeatCount="1"
            android:repeatMode="reverse" />
</set>

XML

   <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                    android:id="@+id/previousItem"
                    android:layout_height="wrap_content"
                    android:layout_alignParentBottom="true"
                    android:layout_alignParentLeft="true"
                    android:onClick="goToPreviousItem"
                    android:layout_margin="@dimen/float_from_edges"
                    android:layout_width="wrap_content"
            >
        <ImageView android:id="@+id/previousItemArrow"
                   android:layout_width="wrap_content"
                   android:layout_height="wrap_content"
                   android:background="@drawable/arrow_left"
                />
    </RelativeLayout>

:

RelativeLayout previousItemButton = (RelativeLayout)findViewById(R.id.previousItem);
    ImageView myButton = (ImageView)findViewById(R.id.previousItemArrow);
    Animation translator =
            AnimationUtils.loadAnimation(this, R.anim.translator);
    myButton.startAnimation(translator);

    Animation scalor =
            AnimationUtils.loadAnimation(this, R.anim.scalor);
    previousItemButton.startAnimation(scalor);

, . , .

+3
This xml works with both interpolators check this


<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" 
        android:shareInterpolator="false">

    <translate
        android:interpolator="@android:anim/overshoot_interpolator"
        android:fromXDelta="100%" android:toXDelta="0%"
        android:duration="500" />

    <scale
        android:interpolator="@android:anim/accelerate_interpolator"
        android:fromXScale="1.0" android:toXScale="0.6"
        android:pivotX="0"
        android:fromYScale="1.0" android:toYScale="1.0"
        android:repeatCount="1"
        android:repeatMode="reverse"
        android:startOffset="500"
        android:duration="1000" />
</set>
+1
source

More articles:


All Articles