主布局
package com.example.android_jiushi;
import java.util.ArrayList;
import java.util.List;
import android.os.Bundle;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.app.Activity;
import android.graphics.PointF;
import android.view.Menu;
import android.view.View;
import android.widget.ImageView;
import android.widget.Toast;
public class MainActivity extends Activity {
private List<ImageView> list = new ArrayList<ImageView>();
private ImageView iv1;
private ImageView iv3;
private ImageView iv4;
private ImageView iv5;
private ImageView iv6;
private ImageView iv7;
private ImageView iv2;
private int r = 300;
private ImageView iv8;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initviewc();
iv7.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Boolean isShowing = (Boolean) iv7.getTag();
if (isShowing == null || isShowing == false) {
showsetormenu();
iv7.setTag(true);
} else {
iv7.setTag(false);
showsetorone();
}
}
});
iv1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Toast.makeText(MainActivity.this,"你点的是第一个",Toast.LENGTH_LONG).show();
}
});
}
// 闭合
protected void showsetorone() {
// TODO Auto-generated method stub
for (int i = 0; i < list.size(); i++) {
PointF point = new PointF();
int avgAngle = (90 / (list.size() - 1));
int angle = avgAngle * i;
point.x = (float) Math.cos(angle * (Math.PI / 180)) * r;
point.y = (float) -Math.sin(angle * (Math.PI / 180)) * r;
ObjectAnimator objectx = ObjectAnimator.ofFloat(list.get(i),
"translationX", point.x, 0);
ObjectAnimator objecty = ObjectAnimator.ofFloat(list.get(i),
"translationY", point.y, 0);
AnimatorSet anima = new AnimatorSet();
// 动画执行时间
anima.setDuration(500);
// 设置动画同时播放
anima.play(objectx).with(objecty);
// 开启动画
anima.start();
}
}
// 展开
protected void showsetormenu() {
// TODO Auto-generated method stub
for (int i = 0; i < list.size(); i++) {
// 第一步,遍历所有要展开的菜单
PointF point = new PointF();
// 计算每个图片之间的角度
int avgAngle = (90 / (list.size() - 1));
// 计算每个图片的角度
int angle = avgAngle * i;
point.x = (float) Math.cos(angle * (Math.PI / 180)) * r;
point.y = (float) -Math.sin(angle * (Math.PI / 180)) * r;
ObjectAnimator objectx = ObjectAnimator.ofFloat(list.get(i),
"translationX", 0, point.x);
ObjectAnimator objecty = ObjectAnimator.ofFloat(list.get(i),
"translationY", 0, point.y);
AnimatorSet anima = new AnimatorSet();
// 动画执行时间
anima.setDuration(500);
// 设置动画同时播放
anima.play(objectx).with(objecty);
// 开启动画
anima.start();
}
}
private void initviewc() {
// TODO Auto-generated method stub
iv2 = (ImageView) findViewById(R.id.imageView2);
list.add(iv2);
iv3 = (ImageView) findViewById(R.id.imageView3);
list.add(iv3);
iv4 = (ImageView) findViewById(R.id.imageView4);
list.add(iv4);
iv5 = (ImageView) findViewById(R.id.imageView5);
list.add(iv5);
iv6 = (ImageView) findViewById(R.id.imageView6);
list.add(iv6);
iv1 = (ImageView) findViewById(R.id.imageView1);
list.add(iv1);
iv8 = (ImageView) findViewById(R.id.imageView8);
list.add(iv8);
iv7 = (ImageView) findViewById(R.id.imageView7);
}
}
布局文件
<RelativeLayout 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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<ImageView
android:id="@+id/imageView1"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:src="@drawable/b"/>
<ImageView
android:id="@+id/imageView2"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:src="@drawable/c"/>
<ImageView
android:id="@+id/imageView3"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:src="@drawable/d"/>
<ImageView
android:id="@+id/imageView4"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:src="@drawable/e"/>
<ImageView
android:id="@+id/imageView5"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:src="@drawable/f"/>
<ImageView
android:id="@+id/imageView6"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:src="@drawable/g"/>
<ImageView
android:id="@+id/imageView8"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:src="@drawable/h"/>
<ImageView
android:id="@+id/imageView7"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:src="@drawable/add"/>
</RelativeLayout>