如果您的观点checkable
和您的观点一样,minsdk > 21
您可以尝试使用StateListAnimator
withAnimatedVectorDrawable
但因为appcompat
现在支持vectorDrawable
并且并且对使用所有我不采取上述方法AnimatedVectorDrawable
也有限制。DrawableContainers
所以让我告诉你什么可能有效:
引用其他仅包含矢量资源的可绘制资源的 DrawableContainers。例如,引用其他包含向量的文件的 StateListDrawable。
来自克里斯·班斯
为了实现这一点,我将创建自定义ImageView
并且每次单击它时都必须调用morph
函数来运行适当vectorAnimatorDrawable
的。
所以代码和演示:
public class ArrowToCheckMarkMorphingImageView extends ImageView {
private AnimatedVectorDrawable mArrowToCheckMark;
private AnimatedVectorDrawable mCheckMarkToArrow;
private boolean mIsShowingCheckMark;
public ArrowToCheckMarkMorphingImageView(Context context) {
super(context);
init();
}
public ArrowToCheckMarkMorphingImageView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public ArrowToCheckMarkMorphingImageView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init();
}
public ArrowToCheckMarkMorphingImageView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
init();
}
public void init(){
mIsShowingCheckMark = false;
mArrowToCheckMark =
(AnimatedVectorDrawable)getContext().getDrawable(R.drawable.arrow_to_checkmark);
mCheckMarkToArrow =
(AnimatedVectorDrawable)getContext().getDrawable(R.drawable.checkmark_to_arrow);
setImageDrawable(mArrowToCheckMark);
}
public void morph(){
final AnimatedVectorDrawable drawable
= mIsShowingCheckMark ? mCheckMarkToArrow : mArrowToCheckMark;
setImageDrawable(drawable);
drawable.start();
mIsShowingCheckMark = !mIsShowingCheckMark;
}
}
和MainActivity
:
public class MainActivity extends AppCompatActivity {
ArrowToCheckMarkMorphingImageView mArrowToCheckMarkImageView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
mArrowToCheckMarkImageView = (ArrowToCheckMarkMorphingImageView)findViewById(R.id.imageView);
mArrowToCheckMarkImageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
mArrowToCheckMarkImageView.morph();
}
});
}
}
在布局文件中,您必须像这样使用它:
<yourpackage.ArrowToCheckMarkMorphingImageView
android:id="@+id/imageView"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_centerInParent="true"
/>
和想要尝试的人的资源:
res/animator/arrow_to_checkmark
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<objectAnimator
android:duration="500"
android:propertyName="pathData"
android:valueFrom="M7.41,15.41 L12,10.83 l4.59,4.58 L18,14 18,14 l-6,-6 -6,6z"
android:valueTo ="M9,16.17 L4.83,12 l-1.42,1.41 L9,19 21,7 l-1.41,-1.41 0,0z"
android:valueType="pathType" />
<objectAnimator
android:duration="500"
android:propertyName="fillColor"
android:valueFrom="#FF0000FF"
android:valueTo="#FF00FF00" />
</set>
res/animator/checkmark_to_arrow
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<objectAnimator
android:duration="500"
android:propertyName="pathData"
android:valueFrom="M9,16.17 L4.83,12 l-1.42,1.41 L9,19 21,7 l-1.41,-1.41 0,0z"
android:valueTo ="M7.41,15.41 L12,10.83 l4.59,4.58 L18,14 18,14 l-6,-6 -6,6z"
android:valueType="pathType" />
<objectAnimator
android:duration="500"
android:propertyName="fillColor"
android:valueFrom="#FF00FF00"
android:valueTo="#FF0000FF" />
</set>
res/drawable/arrow_to_checkmark
<?xml version="1.0" encoding="utf-8"?>
<animated-vector xmlns:android="http://schemas.android.com/apk/res/android"
android:drawable="@drawable/ic_arrow_up_24dp">
<target
android:animation="@animator/arrow_to_checkmark"
android:name="arrow"/>
</animated-vector>
res/drawable/checkmark_to_arrow
<?xml version="1.0" encoding="utf-8"?>
<animated-vector xmlns:android="http://schemas.android.com/apk/res/android"
android:drawable="@drawable/ic_checkmark_24dp">
<target
android:animation="@animator/checkmark_to_arrow"
android:name="checkmark"/>
</animated-vector>
res/drawable/ic_arrow_up_24dp
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="24.0"
android:viewportHeight="24.0">
<path
android:name="arrow"
android:fillColor="#FF0000FF"
android:pathData="M7.41,15.41 L12,10.83 l4.59,4.58 L18,14 18,14 l-6,-6 -6,6z"/>
</vector>
res/drawable/ic_checkmark_24dp
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="24.0"
android:viewportHeight="24.0">
<path
android:name="checkmark"
android:fillColor="#FF00FF00"
android:pathData="M9,16.17 L4.83,12 l-1.42,1.41 L9,19 21,7 l-1.41,-1.41 0,0z"/>
</vector>