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<android.support.constraint.ConstraintLayout android:layout_width="match_parent" android:layout_height="60dp" android:layout_marginStart="20dp" andr...

nineoldandroids：一些属性动画全集https://www.cnblogs.com/xiaanming/p/3524239.htmlhttp://itbox.cc/android-development/Nine-Old-Androids-use/jar包地址：链接：https://pan.baidu.com/s/1LDtrRPJJC-MHe9qyU54gfQ提取码：pgpt...