Android自定义转盘菜单效果

import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v7.app.AppCompatActivity;
import android.widget.Toast;

import com.hitomi.smlibrary.OnSpinMenuStateChangeListener;
import com.hitomi.smlibrary.TurnTableMenu;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

  private TurnTableMenu turnTableMenu;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    turnTableMenu = (TurnTableMenu) findViewById(R.id.spin_menu);

    // 设置页面标题
    List hintStrList = new ArrayList<>();
    hintStrList.add("热门信息");
    hintStrList.add("实时新闻");
    hintStrList.add("我的论坛");
    hintStrList.add("我的信息");
    hintStrList.add("环游世界");
    hintStrList.add("阅读空间");
    hintStrList.add("欢乐空间");
    hintStrList.add("系统设置");

    turnTableMenu.setHintTextStrList(hintStrList);
    turnTableMenu.setHintTextColor(Color.parseColor("#FFFFFF"));
    turnTableMenu.setHintTextSize(14);

    // 设置页面适配器
    final List fragmentList = new ArrayList<>();
    fragmentList.add(Fragment1.newInstance());
    fragmentList.add(Fragment2.newInstance());
    fragmentList.add(Fragment3.newInstance());
    fragmentList.add(Fragment4.newInstance());
    fragmentList.add(Fragment5.newInstance());
    fragmentList.add(Fragment6.newInstance());
    fragmentList.add(Fragment7.newInstance());
    fragmentList.add(Fragment8.newInstance());
    FragmentPagerAdapter fragmentPagerAdapter = new FragmentPagerAdapter(getSupportFragmentManager()) {
      @Override
      public Fragment getItem(int position) {
        return fragmentList.get(position);
      }

      @Override
      public int getCount() {
        return fragmentList.size();
      }
    };
    turnTableMenu.setFragmentAdapter(fragmentPagerAdapter);

    // 设置菜单状态改变时的监听器
    turnTableMenu.setOnSpinMenuStateChangeListener(new OnSpinMenuStateChangeListener() {
      @Override
      public void onMenuOpened() {
        Toast.makeText(MainActivity.this, "SpinMenu opened", Toast.LENGTH_SHORT).show();
      }

      @Override
      public void onMenuClosed() {
        Toast.makeText(MainActivity.this, "SpinMenu closed", Toast.LENGTH_SHORT).show();
      }
    });
  }
}

<&＃63;xml version="1.0" encoding="utf-8"&＃63;>


  

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Color;
import android.os.Build;
import android.support.annotation.IdRes;
import android.support.v4.view.GestureDetectorCompat;
import android.support.v4.view.PagerAdapter;
import android.util.AttributeSet;
import android.util.Log;
import android.view.GestureDetector;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.List;

import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
import static android.view.ViewGroup.LayoutParams.WRAP_CONTENT;

public class TurnTableMenu extends FrameLayout {

  static final String TAG = "SpinMenu";

  static final String TAG_ITEM_COnTAINER= "tag_item_container";

  static final String TAG_ITEM_PAGER = "tag_item_pager";

  static final String TAG_ITEM_HINT = "tag_item_hint";

  static final int MENU_STATE_CLOSE = -2;

  static final int MENU_STATE_CLOSED = -1;

  static final int MENU_STATE_OPEN = 1;

  static final int MENU_STATE_OPENED = 2;

  /**
   * 左右菜单 Item 移动动画的距离
   */
  static final float TRAN_SKNEW_VALUE = 160;

  /**
   * Hint 相对 页面的上外边距
   */
  static final int HINT_TOP_MARGIN = 15;

  /**
   * 可旋转、转动布局
   */
  private TurnTableMenuLayout turnTableMenuLayout;

  /**
   * 菜单打开关闭动画帮助类
   */
  private TurnTableMenuAnimator turnTableMenuAnimator;

  /**
   * 页面适配器
   */
  private PagerAdapter pagerAdapter;

  /**
   * 手势识别器
   */
  private GestureDetectorCompat menuDetector;

  /**
   * 菜单状态改变监听器
   */
  private OnSpinMenuStateChangeListener onSpinMenuStateChangeListener;

  /**
   * 缓存 Fragment 的集合，供 {@link #pagerAdapter} 回收使用
   */
  private List pagerObjects;

  /**
   * 菜单项集合
   */
  private List smItemLayoutList;

  /**
   * 页面标题字符集合
   */
  private List hintStrList;

  /**
   * 页面标题字符尺寸
   */
  private int hintTextSize = 14;

  /**
   * 页面标题字符颜色
   */
  private int hintTextColor = Color.parseColor("#666666");

  /**
   * 默认打开菜单时页面缩小的比率
   */
  private float scaleRatio = .36f;

  /**
   * 控件是否初始化的标记变量
   */
  private boolean init = true;

  /**
   * 是否启用手势识别
   */
  private boolean enableGesture;

  /**
   * 当前菜单状态，默认为打开
   */
  private int menuState = MENU_STATE_CLOSED;

  /**
   * 滑动与触摸之间的阀值
   */
  private int touchSlop = 8;

  private OnSpinSelectedListener OnSpinSelectedListener= new OnSpinSelectedListener() {
    @Override
    public void onSpinSelected(int position) {
      log("SpinMenu position:" + position);
    }
  };

  private OnMenuSelectedListener OnMenuSelectedListener= new OnMenuSelectedListener() {
    @Override
    public void onMenuSelected(SMItemLayout smItemLayout) {
      closeMenu(smItemLayout);
    }
  };

  private GestureDetector.SimpleOnGestureListener menuGestureListener = new GestureDetector.SimpleOnGestureListener() {

    @Override
    public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
      if (Math.abs(distanceX) ();
    menuDetector = new GestureDetectorCompat(context, menuGestureListener);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.DONUT) {
      ViewConfiguration cOnf= ViewConfiguration.get(getContext());
      touchSlop = conf.getScaledTouchSlop();
    }
  }

  @Override
  protected void onFinishInflate() {
    super.onFinishInflate();

    @IdRes final int smLayoutId = 0x6F060505;
    ViewGroup.LayoutParams layoutParams = new ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT);
    turnTableMenuLayout = new TurnTableMenuLayout(getContext());
    turnTableMenuLayout.setId(smLayoutId);
    turnTableMenuLayout.setLayoutParams(layoutParams);
    turnTableMenuLayout.setOnSpinSelectedListener(onSpinSelectedListener);
    turnTableMenuLayout.setOnMenuSelectedListener(onMenuSelectedListener);
    addView(turnTableMenuLayout);
  }

  @Override
  protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
    super.onLayout(changed, left, top, right, bottom);

    if (init && smItemLayoutList.size() > 0) {
      // 根据 scaleRatio 去调整菜单中 item 视图的整体大小
      int pagerWidth = (int) (getMeasuredWidth() * scaleRatio);
      int pagerHeight = (int) (getMeasuredHeight() * scaleRatio);
      SMItemLayout.LayoutParams cOntainerLayoutParams= new SMItemLayout.LayoutParams(pagerWidth, pagerHeight);
      SMItemLayout smItemLayout;
      FrameLayout frameContainer;
      TextView tvHint;
      for (int i = 0; i  turnTableMenuLayout.getMaxMenuItemCount())
      throw new RuntimeException(String.format("Fragment number can't be more than %d", turnTableMenuLayout.getMaxMenuItemCount()));

    pagerAdapter = adapter;

    SMItemLayout.LayoutParams itemLinLayParams = new SMItemLayout.LayoutParams(WRAP_CONTENT, WRAP_CONTENT);
    LinearLayout.LayoutParams cOntainerLinlayParams= new LinearLayout.LayoutParams(MATCH_PARENT, MATCH_PARENT);
    FrameLayout.LayoutParams pagerFrameParams = new FrameLayout.LayoutParams(MATCH_PARENT, MATCH_PARENT);
    LinearLayout.LayoutParams hintLinLayParams = new LinearLayout.LayoutParams(WRAP_CONTENT, WRAP_CONTENT);
    hintLinLayParams.topMargin = HINT_TOP_MARGIN;
    pagerAdapter.startUpdate(turnTableMenuLayout);
    for (int i = 0; i  hintTextList) {
    hintStrList = hintTextList;
  }

  public void setOnSpinMenuStateChangeListener(OnSpinMenuStateChangeListener listener) {
    OnSpinMenuStateChangeListener= listener;
  }

  public float getScaleRatio() {
    return scaleRatio;
  }
}