本文主要介绍收集了笔者所用过的开源动画库，达到一些比较好看的效果。
一个富有动感的 Sheet
链接：
zzz40500/AndroidSweetSheet: 一个富有动感的Sheet(选择器)
效果如下
示例代码
package com.zj.testsheet;import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.RelativeLayout;
import android.widget.Toast;import com.mingle.entity.MenuEntity;
import com.mingle.sweetpick.BlurEffect;
import com.mingle.sweetpick.RecyclerViewDelegate;
import com.mingle.sweetpick.SweetSheet;import java.util.ArrayList;public class MainActivity extends AppCompatActivity {SweetSheet mSweetSheet;RelativeLayout rl;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);rl= (RelativeLayout) findViewById(R.id.rl);// SweetSheet 控件,根据 rl 确认位置mSweetSheet = new SweetSheet(rl);final ArrayList<MenuEntity> list = new ArrayList<>();//添加假数据MenuEntity menuEntity1 = new MenuEntity();menuEntity1.iconId = R.drawable.ic_account_child;//menuEntity1.titleColor = 0xff000000;menuEntity1.title = "code";MenuEntity menuEntity = new MenuEntity();menuEntity.iconId = R.drawable.ic_account_child;//menuEntity.titleColor = 0xffb3b3b3;menuEntity.title = "QQ";list.add(menuEntity1);list.add(menuEntity);list.add(menuEntity);list.add(menuEntity);list.add(menuEntity);list.add(menuEntity);list.add(menuEntity);list.add(menuEntity);list.add(menuEntity);list.add(menuEntity);list.add(menuEntity);list.add(menuEntity);list.add(menuEntity);//设置数据源 (数据源支持设置 list 数组,也支持从menu 资源中获取)mSweetSheet.setMenuList(list);SweetSheet mSweetSheet2 = new SweetSheet(rl);//从menu 中设置数据源mSweetSheet2.setMenuList(R.menu.menu_sweet);
//根据设置不同的 Delegate 来显示不同的风格.mSweetSheet.setDelegate(new RecyclerViewDelegate(true));
//根据设置不同Effect来设置背景效果:BlurEffect 模糊效果.DimEffect 变暗效果,NoneEffect 没有效果.mSweetSheet.setBackgroundEffect(new BlurEffect(8));
//设置菜单点击事件mSweetSheet.setOnMenuItemClickListener(new SweetSheet.OnMenuItemClickListener() {@Overridepublic boolean onItemClick(int position, MenuEntity menuEntity1) {//根据返回值, true 会关闭 SweetSheet ,false 则不会.Toast.makeText(MainActivity.this, menuEntity1.title + " " + position, Toast.LENGTH_SHORT).show();return true;}});mSweetSheet.show();}
}A fluent Android animation library。安卓动画库
主要包括一些进度条效果
链接：
gzu-liyujiang/ViewAnimator: A fluent Android animation library。安卓动画库，加入了一些不错的动画，如：fall、shake、flash、fadeIn、rollOut……支持任意路径动画（示例动画为不断冒出来的桃心及飘雪），支持按SVG格式的path运动。部分已合并到原作者florent37的主分支
效果如下
示例代码
private void animateParallel() {ViewAnimator.animate(mountain, image).dp().translationY(-1000, 0).alpha(0, 1).andAnimate(percent).scale(0, 1).andAnimate(text).dp().translationY(1000, 0).textColor(Color.BLACK, Color.WHITE).backgroundColor(Color.WHITE, Color.BLACK).waitForHeight().interpolator(new AccelerateDecelerateInterpolator()).duration(1000).thenAnimate(percent).custom(new AnimationListener.Update<TextView>() {@Overridepublic void update(TextView view, float value) {value = value * 100;view.setText(String.format(Locale.US, "%.0f%%", value));}}, 0, 1).andAnimate(image).rotation(0, 360).onStop(new AnimationListener.Stop() {@Overridepublic void onStop() {Intent intent = new Intent(StartActivity.this, MainActivity.class);startActivity(intent);}}).duration(1000).start();
}recycleView动画效果
链接：
gabrielemariotti/RecyclerViewItemAnimators: An Android library which provides simple Item animations to RecyclerView items
效果如下：
示例代码
recyclerView= (RecyclerView) findViewById(R.id.id_recyclerview);
recyclerView.setLayoutManager(new GridLayoutManager(this, 4));
mAdapter=new HomeAdapter();
slideInBottomAnimatorAdapter=new SlideInBottomAnimatorAdapter(mAdapter,recyclerView);
recyclerView.setAdapter(slideInBottomAnimatorAdapter);
