Android学习教程之圆形Menu菜单制作方法（1）

白博赡

2023-03-14

本文向大家介绍Android学习教程之圆形Menu菜单制作方法（1），包括了Android学习教程之圆形Menu菜单制作方法（1）的使用技巧和注意事项，需要的朋友参考一下

本文实例为大家分享了Android圆形菜单的使用方法，供大家参考，具体内容如下

MainActivity.java代码:

package siso.handlerdemo;

import android.app.NotificationManager;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {
  private Button btnStartService;
  private Button btnBro;
  private Button btnFile;
  private Button btnSR;
  private Button btnLv;
  private Button btnGv;
  private Button btnMth;
  private Button btnMultispinner;
  private Button btnMenu;
  private Button btnSlidemenu;


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

    //-------------------------------------------------------------------------------
    btnStartService=(Button)findViewById(R.id.btnStartService);
    btnStartService.setOnClickListener(new View.OnClickListener()
    {
      @Override
      public void onClick(View v)
      {
        Intent intent=new Intent(MainActivity.this, StatusService.class);
        startService(intent);
      }
    });
    //-------------------------------------------------------------------------------
    btnBro=(Button)findViewById(R.id.btnRb);
    btnBro.setOnClickListener(new View.OnClickListener()
    {
      @Override
      public void onClick(View v)
      {
        Intent intent=new Intent(MainActivity.this, BRActivity.class);
        startActivity(intent);
      }
    });
    //-------------------------------------------------------------------------------
    btnFile=(Button)findViewById(R.id.btnFile);
    btnFile.setOnClickListener(new View.OnClickListener()
    {
      @Override
      public void onClick(View v)
      {
        Intent intent=new Intent(MainActivity.this, FileActivity.class);
        startActivity(intent);
      }
    });
    //-------------------------------------------------------------------------------
    btnSR=(Button)findViewById(R.id.btnSR);
    btnSR.setOnClickListener(new View.OnClickListener()
    {
      @Override
      public void onClick(View v)
      {
        Intent intent=new Intent(MainActivity.this, SharedpActivity.class);
        startActivity(intent);
      }
    });
    //-------------------------------------------------------------------------------
    btnLv=(Button)findViewById(R.id.btnlv);
    btnLv.setOnClickListener(new View.OnClickListener()
    {
      @Override
      public void onClick(View v)
      {
        Intent intent=new Intent(MainActivity.this, ListViewDemoActivity.class);
        startActivity(intent);
      }
    });
    //-------------------------------------------------------------------------------
    btnGv=(Button)findViewById(R.id.btnGv);
    btnGv.setOnClickListener(new View.OnClickListener()
    {
      @Override
      public void onClick(View v)
      {
        Intent intent=new Intent(MainActivity.this, GvActivity.class);
        startActivity(intent);
      }
    });
    //-------------------------------------------------------------------------------
    btnMth=(Button)findViewById(R.id.btnMth);
    btnMth.setOnClickListener(new View.OnClickListener()
    {
      @Override
      public void onClick(View v)
      {
        Intent intent=new Intent(MainActivity.this, SampleActivity.class);
        startActivity(intent);
      }
    });
    //-------------------------------------------------------------------------------
    btnMultispinner=(Button)findViewById(R.id.btnMultispinner);
    btnMultispinner.setOnClickListener(new View.OnClickListener()
    {
      @Override
      public void onClick(View v)
      {
        Intent intent=new Intent(MainActivity.this, multispinnerActivity.class);
        startActivity(intent);
      }
    });
    //-------------------------------------------------------------------------------
    btnMenu=(Button)findViewById(R.id.btnMenu);
    btnMenu.setOnClickListener(new View.OnClickListener()
    {
      @Override
      public void onClick(View v)
      {
        Intent intent=new Intent(MainActivity.this, CirclemenuActivity.class);
        startActivity(intent);
      }
    });

    btnSlidemenu=(Button)findViewById(R.id.btnSlidemenu);
    btnSlidemenu.setOnClickListener(new View.OnClickListener()
    {
      @Override
      public void onClick(View v)
      {
        Intent intent=new Intent(MainActivity.this, slidemenuActivity.class);
        startActivity(intent);
      }
    });
  }

  @Override
  protected void onStart()
  {
    super.onStart();
    NotificationManager manager=(NotificationManager)getSystemService(NOTIFICATION_SERVICE);
    manager.cancel(R.layout.activity_main);
  }
}

activity_main.xml内容:

<?xml version="1.0" encoding="utf-8"?>
<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="siso.handlerdemo.MainActivity">


  <Button
    android:id="@+id/btnStartService"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="Start Service"
    android:layout_alignParentTop="true"
    android:layout_alignParentStart="true" />

  <TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Hello World!"
    android:id="@+id/textView"
    android:layout_below="@+id/btnSR"
    android:layout_centerHorizontal="true" />

  <Button
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="广播页面"
    android:id="@+id/btnRb"
    android:layout_below="@+id/btnStartService"
    android:layout_alignParentStart="true" />

  <Button
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="文件保存页面"
    android:id="@+id/btnFile"
    android:layout_below="@+id/btnRb"
    android:layout_alignParentStart="true" />

  <Button
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="使用SharedPreferences进行数据存储"
    android:id="@+id/btnSR"
    android:layout_below="@+id/btnFile"
    android:layout_alignParentStart="true" />

  <Button
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="ListView使用"
    android:id="@+id/btnlv"
    android:layout_below="@+id/textView"
    android:layout_centerHorizontal="true" />

  <Button
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="GridView使用"
    android:id="@+id/btnGv"
    android:layout_below="@+id/btnlv"
    android:layout_centerHorizontal="true" />

  <Button
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="TabHost"
    android:id="@+id/btnMth"
    android:layout_below="@+id/btnGv"
    android:layout_centerHorizontal="true" />

  <Button
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="Multispinner"
    android:id="@+id/btnMultispinner"
    android:layout_below="@+id/btnMth"
    android:layout_centerHorizontal="true" />

  <Button
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="Menu使用"
    android:id="@+id/btnMenu"
    android:layout_below="@+id/btnMultispinner"
    android:layout_toStartOf="@+id/textView" />

  <Button
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="滑动Menu"
    android:id="@+id/btnSlidemenu"
    android:layout_below="@+id/btnMultispinner"
    android:layout_alignStart="@+id/textView"
    android:layout_marginStart="37dp" />


</RelativeLayout>

CirclemenuActivity.java代码:

package siso.handlerdemo;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

import siso.view.CircleImageView;
import siso.view.CircleLayout;

public class CirclemenuActivity extends AppCompatActivity implements CircleLayout.OnItemSelectedListener, CircleLayout.OnItemClickListener {


  TextView selectedTextView;

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

    CircleLayout circleMenu = (CircleLayout)findViewById(R.id.main_circle_layout);
    circleMenu.setOnItemSelectedListener(this);
    circleMenu.setOnItemClickListener(this);

    selectedTextView = (TextView)findViewById(R.id.main_selected_textView);
    selectedTextView.setText(((CircleImageView)circleMenu.getSelectedItem()).getName());
  }

  @Override
  public void onItemSelected(View view, int position, long id, String name) {
    selectedTextView.setText(name);
  }

  @Override
  public void onItemClick(View view, int position, long id, String name) {
    Toast.makeText(getApplicationContext(), getResources().getString(R.string.start_app) + " " + name, Toast.LENGTH_SHORT).show();
  }
}

CircleImageView.java代码:

package siso.view;



import android.content.Context;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.widget.ImageView;

import siso.handlerdemo.R;

public class CircleImageView extends ImageView {

  private float angle = 0;
  private int position = 0;
  private String name;

  public float getAngle() {
    return angle;
  }

  public void setAngle(float angle) {
    this.angle = angle;
  }

  public int getPosition() {
    return position;
  }

  public void setPosition(int position) {
    this.position = position;
  }

  public String getName(){
    return name;
  }

  public void setName(String name){
    this.name = name;
  }

  /**
   * @param context
   */
  public CircleImageView(Context context) {
    this(context, null);
  }

  /**
   * @param context
   * @param attrs
   */
  public CircleImageView(Context context, AttributeSet attrs) {
    this(context, attrs, 0);
  }

  /**
   * @param context
   * @param attrs
   * @param defStyle
   */
  public CircleImageView(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    if (attrs != null) {
      TypedArray a = getContext().obtainStyledAttributes(attrs,
          R.styleable.CircleImageView);

      name = a.getString(R.styleable.CircleImageView_name);
    }
  }

}

CircleLayout.java代码:

package siso.view;


import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.util.AttributeSet;
import android.view.GestureDetector;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;

import siso.handlerdemo.R;


public class CircleLayout extends ViewGroup {

  private OnItemClickListener mOnItemClickListener = null;
  private OnItemSelectedListener mOnItemSelectedListener = null;
  private OnCenterClickListener mOnCenterClickListener = null;


  private Bitmap imageOriginal, imageScaled;
  private Matrix matrix;

  private int mTappedViewsPostition = -1;
  private View mTappedView = null;
  private int selected = 0;


  private int mMaxChildWidth = 0;
  private int mMaxChildHeight = 0;
  private int childWidth = 0;
  private int childHeight = 0;


  private int circleWidth, circleHeight;
  private int radius = 0;


  private GestureDetector mGestureDetector;

  private boolean[] quadrantTouched;


  private boolean allowRotating = true;
  private float angle = 90;
  private float firstChildPos = 90;
  private boolean rotateToCenter = true;
  private boolean isRotating = true;

  /**
   * @param context
   */
  public CircleLayout(Context context) {
    this(context, null);
  }

  /**
   * @param context
   * @param attrs
   */
  public CircleLayout(Context context, AttributeSet attrs) {
    this(context, attrs, 0);
  }

  /**
   * @param context
   * @param attrs
   * @param defStyle
   */
  public CircleLayout(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    init(attrs);
  }


  protected void init(AttributeSet attrs) {
    mGestureDetector = new GestureDetector(getContext(),
        new MyGestureListener());
    quadrantTouched = new boolean[] { false, false, false, false, false };

    if (attrs != null) {
      TypedArray a = getContext().obtainStyledAttributes(attrs,
          R.styleable.Circle);


      angle = a.getInt(R.styleable.Circle_firstChildPosition, 90);
      firstChildPos = angle;

      rotateToCenter = a.getBoolean(R.styleable.Circle_rotateToCenter,
          true);     
      isRotating = a.getBoolean(R.styleable.Circle_isRotating, true);


      if (!isRotating) {
        rotateToCenter = false;
      }

      if (imageOriginal == null) {
        int picId = a.getResourceId(
            R.styleable.Circle_circleBackground, -1);


        if (picId != -1) {
          imageOriginal = BitmapFactory.decodeResource(
              getResources(), picId);
        }
      }

      a.recycle();


      if (matrix == null) {
        matrix = new Matrix();
      } else {

        matrix.reset();
      }

      setWillNotDraw(false);
    }
  }


  public View getSelectedItem() {
    return (selected >= 0) ? getChildAt(selected) : null;
  }

  @Override
  protected void onDraw(Canvas canvas) {

    circleHeight = getHeight();
    circleWidth = getWidth();

    if (imageOriginal != null) {

      if (imageScaled == null) {
        matrix = new Matrix();
        float sx = (((radius + childWidth / 4) * 2) / (float) imageOriginal
            .getWidth());
        float sy = (((radius + childWidth / 4) * 2) / (float) imageOriginal
            .getHeight());
        matrix.postScale(sx, sy);
        imageScaled = Bitmap.createBitmap(imageOriginal, 0, 0,
            imageOriginal.getWidth(), imageOriginal.getHeight(),
            matrix, false);
      }

      if (imageScaled != null) {

        int cx = (circleWidth - imageScaled.getWidth()) / 2;
        int cy = (circleHeight - imageScaled.getHeight()) / 2;

        Canvas g = canvas;
        canvas.rotate(0, circleWidth / 2, circleHeight / 2);
        g.drawBitmap(imageScaled, cx, cy, null);

      }
    }
  }

  @Override
  protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    mMaxChildWidth = 0;
    mMaxChildHeight = 0;

    int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(
        MeasureSpec.getSize(widthMeasureSpec), MeasureSpec.AT_MOST);
    int childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(
        MeasureSpec.getSize(widthMeasureSpec), MeasureSpec.AT_MOST);

    final int count = getChildCount();
    for (int i = 0; i < count; i++) {
      final View child = getChildAt(i);
      if (child.getVisibility() == GONE) {
        continue;
      }

      child.measure(childWidthMeasureSpec, childHeightMeasureSpec);

      mMaxChildWidth = Math.max(mMaxChildWidth, child.getMeasuredWidth());
      mMaxChildHeight = Math.max(mMaxChildHeight,
          child.getMeasuredHeight());
    }


    childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(mMaxChildWidth,
        MeasureSpec.EXACTLY);
    childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(mMaxChildHeight,
        MeasureSpec.EXACTLY);

    for (int i = 0; i < count; i++) {
      final View child = getChildAt(i);
      if (child.getVisibility() == GONE) {
        continue;
      }

      child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
    }

    setMeasuredDimension(resolveSize(mMaxChildWidth, widthMeasureSpec),
        resolveSize(mMaxChildHeight, heightMeasureSpec));
  }

  @Override
  protected void onLayout(boolean changed, int l, int t, int r, int b) {
    int layoutWidth = r - l;
    int layoutHeight = b - t;


    final int childCount = getChildCount();
    int left, top;
    radius = (layoutWidth <= layoutHeight) ? layoutWidth / 3
        : layoutHeight / 3;

    childWidth = (int) (radius / 1.5);
    childHeight = (int) (radius / 1.5);

    float angleDelay = 360 / getChildCount();

    for (int i = 0; i < childCount; i++) {
      final CircleImageView child = (CircleImageView) getChildAt(i);
      if (child.getVisibility() == GONE) {
        continue;
      }

      if (angle > 360) {
        angle -= 360;
      } else {
        if (angle < 0) {
          angle += 360;
        }
      }

      child.setAngle(angle);
      child.setPosition(i);

      left = Math
          .round((float) (((layoutWidth / 2) - childWidth / 2) + radius
              * Math.cos(Math.toRadians(angle))));
      top = Math
          .round((float) (((layoutHeight / 2) - childHeight / 2) + radius
              * Math.sin(Math.toRadians(angle))));

      child.layout(left, top, left + childWidth, top + childHeight);
      angle += angleDelay;
    }
  }


  private void rotateButtons(float degrees) {
    int left, top, childCount = getChildCount();
    float angleDelay = 360 / childCount;
    angle += degrees;

    if (angle > 360) {
      angle -= 360;
    } else {
      if (angle < 0) {
        angle += 360;
      }
    }

    for (int i = 0; i < childCount; i++) {
      if (angle > 360) {
        angle -= 360;
      } else {
        if (angle < 0) {
          angle += 360;
        }
      }

      final CircleImageView child = (CircleImageView) getChildAt(i);
      if (child.getVisibility() == GONE) {
        continue;
      }
      left = Math
          .round((float) (((circleWidth / 2) - childWidth / 2) + radius
              * Math.cos(Math.toRadians(angle))));
      top = Math
          .round((float) (((circleHeight / 2) - childHeight / 2) + radius
              * Math.sin(Math.toRadians(angle))));

      child.setAngle(angle);

      if (Math.abs(angle - firstChildPos) < (angleDelay / 2)
          && selected != child.getPosition()) {
        selected = child.getPosition();

        if (mOnItemSelectedListener != null && rotateToCenter) {
          mOnItemSelectedListener.onItemSelected(child, selected,
              child.getId(), child.getName());
        }
      }

      child.layout(left, top, left + childWidth, top + childHeight);
      angle += angleDelay;
    }
  }


  private double getAngle(double xTouch, double yTouch) {
    double x = xTouch - (circleWidth / 2d);
    double y = circleHeight - yTouch - (circleHeight / 2d);

    switch (getQuadrant(x, y)) {
    case 1:
      return Math.asin(y / Math.hypot(x, y)) * 180 / Math.PI;

    case 2:
    case 3:
      return 180 - (Math.asin(y / Math.hypot(x, y)) * 180 / Math.PI);

    case 4:
      return 360 + Math.asin(y / Math.hypot(x, y)) * 180 / Math.PI;

    default:

      return 0;
    }
  }


  private static int getQuadrant(double x, double y) {
    if (x >= 0) {
      return y >= 0 ? 1 : 4;
    } else {
      return y >= 0 ? 2 : 3;
    }
  }

  private double startAngle;

  @Override
  public boolean onTouchEvent(MotionEvent event) {
    if (isEnabled()) {
      if (isRotating) {
        switch (event.getAction()) {
        case MotionEvent.ACTION_DOWN:


          for (int i = 0; i < quadrantTouched.length; i++) {
            quadrantTouched[i] = false;
          }

          allowRotating = false;

          startAngle = getAngle(event.getX(), event.getY());
          break;
        case MotionEvent.ACTION_MOVE:
          double currentAngle = getAngle(event.getX(), event.getY());
          rotateButtons((float) (startAngle - currentAngle));
          startAngle = currentAngle;
          break;
        case MotionEvent.ACTION_UP:
          allowRotating = true;
          rotateViewToCenter((CircleImageView) getChildAt(selected),
              false);
          break;
        }
      }


      quadrantTouched[getQuadrant(event.getX() - (circleWidth / 2),
          circleHeight - event.getY() - (circleHeight / 2))] = true;
      mGestureDetector.onTouchEvent(event);
      return true;
    }
    return false;
  }

  private class MyGestureListener extends SimpleOnGestureListener {
    @Override
    public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
        float velocityY) {
      if (!isRotating) {
        return false;
      }

      int q1 = getQuadrant(e1.getX() - (circleWidth / 2), circleHeight
          - e1.getY() - (circleHeight / 2));
      int q2 = getQuadrant(e2.getX() - (circleWidth / 2), circleHeight
          - e2.getY() - (circleHeight / 2));


      if ((q1 == 2 && q2 == 2 && Math.abs(velocityX) < Math
          .abs(velocityY))
          || (q1 == 3 && q2 == 3)
          || (q1 == 1 && q2 == 3)
          || (q1 == 4 && q2 == 4 && Math.abs(velocityX) > Math
              .abs(velocityY))
          || ((q1 == 2 && q2 == 3) || (q1 == 3 && q2 == 2))
          || ((q1 == 3 && q2 == 4) || (q1 == 4 && q2 == 3))
          || (q1 == 2 && q2 == 4 && quadrantTouched[3])
          || (q1 == 4 && q2 == 2 && quadrantTouched[3])) {

        CircleLayout.this.post(new FlingRunnable(-1
            * (velocityX + velocityY)));
      } else {

        CircleLayout.this
            .post(new FlingRunnable(velocityX + velocityY));
      }

      return true;

    }

    @Override
    public boolean onSingleTapUp(MotionEvent e) {
      mTappedViewsPostition = pointToPosition(e.getX(), e.getY());
      if (mTappedViewsPostition >= 0) {
        mTappedView = getChildAt(mTappedViewsPostition);
        mTappedView.setPressed(true);
      } else {
        float centerX = circleWidth / 2;
        float centerY = circleHeight / 2;

        if (e.getX() < centerX + (childWidth / 2)
            && e.getX() > centerX - childWidth / 2
            && e.getY() < centerY + (childHeight / 2)
            && e.getY() > centerY - (childHeight / 2)) {
          if (mOnCenterClickListener != null) {
            mOnCenterClickListener.onCenterClick();
            return true;
          }
        }
      }

      if (mTappedView != null) {
        CircleImageView view = (CircleImageView) (mTappedView);
        if (selected != mTappedViewsPostition) {
          rotateViewToCenter(view, false);
          if (!rotateToCenter) {
            if (mOnItemSelectedListener != null) {
              mOnItemSelectedListener.onItemSelected(mTappedView,
                  mTappedViewsPostition, mTappedView.getId(), view.getName());
            }

            if (mOnItemClickListener != null) {
              mOnItemClickListener.onItemClick(mTappedView,
                  mTappedViewsPostition, mTappedView.getId(), view.getName());
            }
          }
        } else {
          rotateViewToCenter(view, false);

          if (mOnItemClickListener != null) {
            mOnItemClickListener.onItemClick(mTappedView,
                mTappedViewsPostition, mTappedView.getId(), view.getName());
          }
        }
        return true;
      }
      return super.onSingleTapUp(e);
    }
  }


  private void rotateViewToCenter(CircleImageView view, boolean fromRunnable) {
    if (rotateToCenter) {
      float velocityTemp = 1;
      float destAngle = (float) (firstChildPos - view.getAngle());
      float startAngle = 0;
      int reverser = 1;

      if (destAngle < 0) {
        destAngle += 360;
      }

      if (destAngle > 180) {
        reverser = -1;
        destAngle = 360 - destAngle;
      }

      while (startAngle < destAngle) {
        startAngle += velocityTemp / 75;
        velocityTemp *= 1.0666F;
      }

      CircleLayout.this.post(new FlingRunnable(reverser * velocityTemp,
          !fromRunnable));
    }
  }


  private class FlingRunnable implements Runnable {

    private float velocity;
    float angleDelay;
    boolean isFirstForwarding = true;

    public FlingRunnable(float velocity) {
      this(velocity*0.4f, true);
    }

    public FlingRunnable(float velocity, boolean isFirst) {
      this.velocity = velocity;
      this.angleDelay = 360 / getChildCount();
      this.isFirstForwarding = isFirst;
    }

    public void run() {
      if (Math.abs(velocity) > 5 && allowRotating) {
        if (rotateToCenter) {
          if (!(Math.abs(velocity) < 200 && (Math.abs(angle
              - firstChildPos)
              % angleDelay < 2))) {
            rotateButtons(velocity / 75);
            velocity /= 1.0666F;

            CircleLayout.this.post(this);
          }
        } else {
          rotateButtons(velocity / 75);
          velocity /= 1.0666F;

          CircleLayout.this.post(this);
        }
      } else {
        if (isFirstForwarding) {
          isFirstForwarding = false;
          CircleLayout.this.rotateViewToCenter(
              (CircleImageView) getChildAt(selected), true);
        }
      }
    }
  }

  private int pointToPosition(float x, float y) {

    for (int i = 0; i < getChildCount(); i++) {

      View item = (View) getChildAt(i);
      if (item.getLeft() < x && item.getRight() > x & item.getTop() < y
          && item.getBottom() > y) {
        return i;
      }

    }
    return -1;
  }

  public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
    this.mOnItemClickListener = onItemClickListener;
  }

  public interface OnItemClickListener {
    void onItemClick(View view, int position, long id, String name);
  }

  public void setOnItemSelectedListener(
      OnItemSelectedListener onItemSelectedListener) {
    this.mOnItemSelectedListener = onItemSelectedListener;
  }

  public interface OnItemSelectedListener {
    void onItemSelected(View view, int position, long id, String name);
  }

  public interface OnCenterClickListener {
    void onCenterClick();
  }

  public void setOnCenterClickListener(
      OnCenterClickListener onCenterClickListener) {
    this.mOnCenterClickListener = onCenterClickListener;
  }
}

activity_circlemenu.xml内容:

<?xml version="1.0" encoding="utf-8"?>
<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"
  xmlns:circle="http://schemas.android.com/apk/res-auto"
  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="siso.handlerdemo.CirclemenuActivity">


  <siso.view.CircleLayout
    android:id="@+id/main_circle_layout"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_above="@+id/main_selected_textView"
    android:layout_gravity="center_horizontal"
    circle:firstChildPosition="South"
    circle:rotateToCenter="false"
    circle:isRotating="true" >



    <siso.view.CircleImageView
      android:id="@+id/main_facebook_image"
      android:layout_width="35dp"
      android:layout_height="35dp"
      android:src="@drawable/icon_facebook"
      circle:name="@string/facebook" />

    <siso.view.CircleImageView
      android:id="@+id/main_myspace_image"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:src="@drawable/icon_myspace"
      circle:name="@string/myspace" />

    <siso.view.CircleImageView
      android:id="@+id/main_google_image"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:src="@drawable/icon_google"
      circle:name="@string/google" />

    <siso.view.CircleImageView
      android:id="@+id/main_linkedin_image"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:src="@drawable/icon_linkedin"
      circle:name="@string/linkedin" />

    <siso.view.CircleImageView
      android:id="@+id/main_twitter_image"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:src="@drawable/icon_twitter"
      circle:name="@string/twitter" />

    <siso.view.CircleImageView
      android:id="@+id/main_wordpress_image"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:src="@drawable/icon_wordpress"
      circle:name="@string/wordpress" />
  </siso.view.CircleLayout>

  <TextView
    android:id="@+id/main_selected_textView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_centerHorizontal="true"
    android:layout_marginBottom="50dp"
    android:textAppearance="?android:attr/textAppearanceLarge" />
</RelativeLayout>

strings.xml内容:

 <string name="facebook">Facebook</string>
  <string name="twitter">Twitter</string>
  <string name="google">Google</string>
  <string name="linkedin">LinkedIn</string>
  <string name="wordpress">Wordpress</string>
  <string name="myspace">Myspace</string>
  <string name="start_app">Starting application:</string>

attrs.xml内容:

<?xml version="1.0" encoding="utf-8"?>
<resources>

  <declare-styleable name="Circle">
    <attr name="circleBackground" format="integer" />
    <attr name="firstChildPosition">
      <enum name="East" value="0" />
      <enum name="South" value="90" />
      <enum name="West" value="180" />
      <enum name="North" value="270" />
    </attr>
    <attr name="rotateToCenter" format="boolean" />
    <attr name="isRotating" format="boolean" />
  </declare-styleable>
  <declare-styleable name="CircleImageView">
    <attr name="name" format="string" />
  </declare-styleable>
</resources>

运行结果如图:

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持小牛知识库。

Android学习教程之圆形Menu菜单制作方法（1）

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