Android 带有d出收缩动画的扇形菜单实例

概述最近试着做了个Android带有d出收缩动画的扇形菜单，留个笔记记录一下。效果如下

最近试着做了个AndroID 带有d出收缩动画的扇形菜单，留个笔记记录一下。@H_301_1@

效果如下

public class MainActivity extends AppCompatActivity implements VIEw.OnClickListener {  private ImageVIEw imgPublish;  private TextVIEw textVIEw1;  private TextVIEw textVIEw2;  private boolean isMenuOpen = false;  private List<TextVIEw> textVIEws = new ArrayList<>();  @OverrIDe  protected voID onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentVIEw(R.layout.activity_main);    imgPublish = (ImageVIEw) findVIEwByID(R.ID.img_publish);    textVIEw1 = (TextVIEw) findVIEwByID(R.ID.tv_1);    textVIEw2 = (TextVIEw) findVIEwByID(R.ID.tv_2);    textVIEws.add(textVIEw1);    textVIEws.add(textVIEw2);    imgPublish.setonClickListener(this);  }  @OverrIDe  public voID onClick(VIEw v) {    switch (v.getID()) {      case R.ID.img_publish:        if (!isMenuOpen) {          showOpenAnim(80);          imgPublish.setimageResource(R.mipmap.publish_select);        }else {          showCloseAnim(80);          imgPublish.setimageResource(R.mipmap.fabu);        }        break;    }  }  //打开扇形菜单的属性动画， dp为半径长度  private voID showOpenAnim(int dp) {    textVIEw1.setVisibility(VIEw.VISIBLE);    textVIEw2.setVisibility(VIEw.VISIBLE);    //for循环来开始小图标的出现动画    for (int i = 0; i < textVIEws.size(); i++) {      AnimatorSet set = new AnimatorSet();      //标题1与x轴负方向角度为20°，标题2为100°，转换为弧度      double a = -Math.cos(20 * Math.PI / 180 * (i * 2 + 1));      double b = -Math.sin(20 * Math.PI / 180 * (i * 2 + 1));      double x = a * dip2px(dp);      double y = b * dip2px(dp);      set.playTogether(          ObjectAnimator.offloat(textVIEws.get(i),"translationX",(float) (x * 0.25),(float) x),ObjectAnimator.offloat(textVIEws.get(i),"translationY",(float) (y * 0.25),(float) y),"Alpha",1).setDuration(2000)      );      set.setInterpolator(new BounceInterpolator());      set.setDuration(500).setStartDelay(100);      set.start();      set.addListener(new Animator.AnimatorListener() {        @OverrIDe        public voID onAnimationStart(Animator animation) {        }        @OverrIDe        public voID onAnimationEnd(Animator animation) {          //菜单状态置打开          isMenuOpen = true;        }        @OverrIDe        public voID onAnimationCancel(Animator animation) {        }        @OverrIDe        public voID onAnimationRepeat(Animator animation) {        }      });    }    //转动加号大图标本身45°    ObjectAnimator rotate = ObjectAnimator.offloat(imgPublish,"rotation",90).setDuration(300);    rotate.setInterpolator(new BounceInterpolator());    rotate.start();  }  //关闭扇形菜单的属性动画，参数与打开时相反  private voID showCloseAnim(int dp) {    //for循环来开始小图标的出现动画    for (int i = 0; i < textVIEws.size(); i++) {      AnimatorSet set = new AnimatorSet();      double a = -Math.cos(20 * Math.PI / 180 * (i * 2 + 1));      double b = -Math.sin(20 * Math.PI / 180 * (i * 2 + 1));      double x = a * dip2px(dp);      double y = b * dip2px(dp);      set.playTogether(          ObjectAnimator.offloat(textVIEws.get(i),(float) x,(float) (x * 0.25)),(float) y,(float) (y * 0.25)),1,0).setDuration(2000)      );//      set.setInterpolator(new AccelerateInterpolator());      set.setDuration(500);      set.start();      set.addListener(new Animator.AnimatorListener() {        @OverrIDe        public voID onAnimationStart(Animator animation) {        }        @OverrIDe        public voID onAnimationEnd(Animator animation) {          textVIEw1.setVisibility(VIEw.GONE);          textVIEw2.setVisibility(VIEw.GONE);          //菜单状态置关闭          isMenuOpen = false;        }        @OverrIDe        public voID onAnimationCancel(Animator animation) {        }        @OverrIDe        public voID onAnimationRepeat(Animator animation) {        }      });    }    //转动加号大图标本身45°    ObjectAnimator rotate = ObjectAnimator.offloat(imgPublish,90).setDuration(300);    rotate.setInterpolator(new BounceInterpolator());    rotate.start();  }  private int dip2px(int value) {    float density = getResources()        .getdisplayMetrics().density;    return (int) (density * value + 0.5f);  }}

布局文件

<?xml version="1.0" enCoding="utf-8"?>  <FrameLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"    xmlns:tools="http://schemas.androID.com/tools"    androID:layout_wIDth="match_parent"    androID:layout_height="match_parent"    tools:context="com.example.lina.animationapplication.MainActivity">  <TextVIEw    androID:ID="@+ID/tv_1"    androID:layout_wIDth="40dp"    androID:layout_height="40dp"    androID:layout_gravity="bottom|end"    androID:layout_marginBottom="40dp"    androID:layout_marginRight="40dp"    androID:gravity="center"    androID:text="标题1"    androID:textcolor="#ffffff"    androID:visibility="gone"    androID:background="@drawable/circle_purple"    />  <TextVIEw    androID:ID="@+ID/tv_2"    androID:layout_wIDth="40dp"    androID:layout_height="40dp"    androID:layout_gravity="bottom|end"    androID:layout_marginBottom="40dp"    androID:layout_marginRight="40dp"    androID:gravity="center"    androID:text="标题2"    androID:textcolor="#ffffff"    androID:visibility="gone"    androID:background="@drawable/circle_orange"/>  <ImageVIEw      androID:ID="@+ID/img_publish"      androID:layout_wIDth="60dp"      androID:layout_height="60dp"      androID:layout_gravity="bottom|end"      androID:layout_marginBottom="35dp"      androID:layout_marginRight="35dp"      androID:src="@mipmap/fabu"      />  </FrameLayout>

circle_purple.xml

<?xml version="1.0" enCoding="utf-8"?><shape xmlns:androID="http://schemas.androID.com/apk/res/androID"  androID:shape="oval">  <solID androID:color="#5d2a89" /></shape>

参考@H_301_1@

Android开罐头―――快速打造扇形卫星菜单

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