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Android 发布时间：2022-04-28 发布网站：大佬教程 code.js-code.com

大佬教程收集整理的这篇文章主要介绍了Android高手进阶教程(二十六)之---Android超仿Path菜单的功能实现！，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。

Hi~大家好，出来创业快3个月了，一切还不错，前一段时间用了业余时间搞了个问答类网站YQMA.想做中国的stackoverflow,哈哈，只是YY下，希望大家多多支持！

好了，今天给大家分享的是Path菜单的简单实现，可以支持自定义方向(左上，右上，右下，左下)，并且可以自定义菜单的个数，难点就是菜单的摆放位置(动态设置margin)，还有动画的实现，其实动画只是简单用了个TranslateAnimation，N个菜单一起移动的时候感觉很cool~

这里也用到了自定义标签，这里不懂的童鞋可以看我 Android高手进阶教程(四)之----Android 中自定义属性(attr.xml,TypedArray)的使用! 这篇文章.好了废话不多说了，

首先创建一个android工程命名为PathTest.目录结构如下图:

Android高手进阶教程(二十六)之---Android超仿Path菜单的功能实现！

第二步:在values文件夹下新建一个attrs.xml文件，代码如下:

@H_489_18@ <?xml version="1.0" encoding="utf-8"?> <resources> <declare-styleable name="PathMenuView"> <attr name="position"> <enum name="left_top" value="0"></enum> <enum name="right_top" value="1"></enum> <enum name="righT_Bottom" value="2"></enum> <enum name="lefT_Bottom" value="3"></enum> </attr> </declare-styleable> </resources>

第三步：新建一个PathMenuView.Java这个就是我们自定义的Path菜单控件，代码如下：

package com.tutor.path; 
 
import androidcontentContext; 
import androidcontentresTypedArray; 
import androidutilAttributeSet; 
import androidviewGravity; 
import androidviewView; 
import androidviewViewGroup; 
import androidviewanimationAnimation; 
import androidviewanimationAnticipateInterpolator; 
import androidviewanimationOvershooTinterpolator; 
import androidviewanimationTranslateAnimation; 
import androidwidgetFrameLayout; 
import androidwidgetImageView; 
 
 
/** 
 * @author frankiewei 
 * 超级仿path菜单 
 * position定义菜单的位置，目前支持：左上;右上;右下;左下四个方向。 
 * menuResIds定义出现的菜单的资源ID 
 */ 
public class PathMenuView extends FrameLayout { 
   
  private static final int LEFT_TOP = 0; 
   
  private static final int RIGHT_TOP = 1; 
   
  private static final int RIGHT_BOTTOM = 2; 
   
  private static final int LEFT_BOTTOM = 3; 
   
   
  /** 
   * 默认的位置是在右下角 
   */ 
  private int position = 3; 
   
  /** 
   * 那个圆形菜单 
   */ 
  private ImageView mHome; 
   
  /** 
   * 上下文 
   */ 
  private Context mContext; 
   
   
  /** 
   * 设备的宽度 
   */ 
  privatE int mWIDTH = 0; 
   
  /** 
   * 设备的高度 
   */ 
  privatE int mHEIGHT = 0; 
   
  /** 
   * 设备的density 
   */ 
  private float mDensity; 
   
  /** 
   * 菜单是否显示 
   */ 
  private Boolean bMenuShow; 
   
  private static int xOffset   = 15; 
  private static int yOffset   = -13; 
   
  /** 
   * 菜单的资源个数 
   */ 
  privatE int[] menuResIds = {Rdrawablecomposer_camera,Rdrawablecomposer_music,Rdrawablecomposer_sleep,Rdrawablecomposer_placE}; 
   
 
  public PathMenuView(Context context){ 
    super(context); 
    setupViews(); 
  } 
   
  public PathMenuView(Context context,AttributeSet attrs) { 
    super(context,attrs); 
    TypedArray a = contextobtainStyledAttributes(attrs,RstyleablePathMenuView); 
     
    position = ageTint(RstyleablePathMenuView_position,3); 
     
    arecycle(); 
    setupViews(); 
  } 
   
  private void setupViews(){ 
    mContext = getContext(); 
 
    mHEIGHT = mContextgetresources()getDisplaymetrics()heightPixels; 
    mWIDTH = mContextgetresources()getDisplaymetrics()widthPixels; 
    mDensity = mContextgetresources()getDisplaymetrics()density; 
     
    xOffset = (int) (667 * mDensity); 
    yOffset = (int) (667 * mDensity); 
     
    mHome = new ImageView(mContext); 
     
    mHomesetImageresource(Rdrawablecomposer_button); 
    mHomesetOnClickListener(listener); 
     
    addView(mHomE); 
     
    LayoutParams mHomeparams = (FrameLayoutLayoutParams)mHomegetLayoutParams(); 
    mHomeparamswidth = LayoutParamsWRAP_CONTENT; 
    mHomeparamsheight = LayoutParamsWRAP_CONTENT; 
     
    switch (position) { 
    case LEFT_TOP: 
      mHomeparamsgravity = GravityLEFT | GravityTOP; 
      for (int i = 0; i < menuResIdslength; i++) { 
 
        int width_padding = mWIDTH / ((menuResIdslength - 1) * 2); 
        int height_padding = mHEIGHT / ((menuResIdslength - 1) * 2); 
 
        ImageView imageView = new ImageView(mContext); 
        imageViewsetImageresource(menuResIds[i]); 
        addView(imageView); 
        LayoutParams params = (FrameLayoutLayoutParams) imageView 
            getLayoutParams(); 
        paramswidth = LayoutParamsWRAP_CONTENT; 
        paramsheight = LayoutParamsWRAP_CONTENT; 
        paramsleftMargin = mWIDTH / 2 
            - ((menuResIdslength - i - 1) * width_padding); 
        paramstopMargin = mHEIGHT / 2 - i * height_padding; 
        paramsgravity = GravityLEFT | GravityTOP; 
        imageViewsetLayoutParams(params); 
 
      } 
       
      break; 
    case RIGHT_TOP: 
      mHomeparamsgravity = GravityRIGHT | GravityTOP; 
      for (int i = 0; i < menuResIdslength; i++) { 
 
        int width_padding = mWIDTH / ((menuResIdslength - 1) * 2); 
        int height_padding = mHEIGHT / ((menuResIdslength - 1) * 2); 
 
        ImageView imageView = new ImageView(mContext); 
        imageViewsetImageresource(menuResIds[i]); 
        addView(imageView); 
        LayoutParams params = (FrameLayoutLayoutParams) imageView 
            getLayoutParams(); 
        paramswidth = LayoutParamsWRAP_CONTENT; 
        paramsheight = LayoutParamsWRAP_CONTENT; 
        paramsrightMargin = mWIDTH / 2 
            - ((menuResIdslength - i - 1) * width_padding); 
        paramstopMargin = mHEIGHT / 2 - i * height_padding; 
        paramsgravity = GravityRIGHT | GravityTOP; 
        imageViewsetLayoutParams(params); 
 
      } 
      break; 
    case RIGHT_BOTTOM: 
      mHomeparamsgravity = GravityRIGHT | GravityBOTTOM; 
      for (int i = 0; i < menuResIdslength; i++) { 
 
        int width_padding = mWIDTH / ((menuResIdslength - 1) * 2); 
        int height_padding = mHEIGHT / ((menuResIdslength - 1) * 2); 
 
        ImageView imageView = new ImageView(mContext); 
        imageViewsetImageresource(menuResIds[i]); 
        addView(imageView); 
        LayoutParams params = (FrameLayoutLayoutParams) imageView 
            getLayoutParams(); 
        paramswidth = LayoutParamsWRAP_CONTENT; 
        paramsheight = LayoutParamsWRAP_CONTENT; 
        paramsrightMargin = mWIDTH / 2 
            - ((menuResIdslength - i - 1) * width_padding); 
        paramsbottomMargin = mHEIGHT / 2 - i * height_padding; 
        paramsgravity = GravityRIGHT | GravityBOTTOM; 
        imageViewsetLayoutParams(params); 
 
      } 
      break; 
    case LEFT_BOTTOM: 
      mHomeparamsgravity = GravityLEFT | GravityBOTTOM; 
      for(int i = 0; i < menuResIdslength; i++){ 
         
        int width_padding = mWIDTH / ((menuResIdslength - 1) * 2); 
        int height_padding = mHEIGHT / ((menuResIdslength -1) * 2); 
         
        ImageView imageView = new ImageView(mContext); 
        imageViewsetImageresource(menuResIds[i]); 
        addView(imageView); 
        LayoutParams params = (FrameLayoutLayoutParams)imageViewgetLayoutParams(); 
        paramswidth = LayoutParamsWRAP_CONTENT; 
        paramsheight = LayoutParamsWRAP_CONTENT;      
        paramsleftMargin = mWIDTH / 2 - ((menuResIdslength - i - 1) * width_padding); 
        paramsbottomMargin = mHEIGHT / 2 - i * height_padding; 
        paramsgravity = GravityLEFT | GravityBOTTOM; 
        imageViewsetLayoutParams(params);            
      } 
      break; 
    default: 
        break; 
    }   
     
    mHomesetLayoutParams(mHomeparams);    
  } 
   
  private OnClickListener listener = new OnClickListener() { 
     
    public void onClick(View v) { 
      if (!bMenuShow) { 
        startAnimationIn(PathMenuViewthis,300); 
      } else { 
        startAnimationOut(PathMenuViewthis,300); 
      } 
      bMenuShow = !bMenuShow; 
    } 
  }; 
   
   
  /** 
   * 菜单隐藏动画 
   * 
   * @param group 
   * @param duration 
   */ 
  private void startAnimationIn(ViewGroup group,int duration) { 
    for (int i = 1; i < groupgetChildCount(); i++) { 
      ImageView imageview = (ImageView) groupgetChildAt(i); 
      imageviewsetVisibility(0); 
      MarginLayoutParams mlp = (MarginLayoutParams) imageview 
          getLayoutParams(); 
       
       
      Animation animation = null; 
       
       
      switch (position) { 
      case LEFT_TOP: 
        animation = new TranslateAnimation(0F,-mlpleftMargin+xOffset,0F,-mlPTOPR_622_11845@argin + yOffset); 
        break; 
      case RIGHT_TOP: 
        animation = new TranslateAnimation(mlprightMargin - xOffset,-mlPTOPR_622_11845@argin + yOffset,0F); 
        break;      
      case LEFT_BOTTOM: 
        animation = new TranslateAnimation(0F,-mlpleftMargin+ xOffset,-yOffset + mlpbottomMargin); 
        break; 
         
      case RIGHT_BOTTOM: 
        animation = new TranslateAnimation(mlprightMargin-xOffset,-yOffset + mlpbottomMargin,0F); 
        break; 
      default: 
        break; 
      } 
 
      animationsetFillAfter(true); 
      animationsetDuration(duration); 
      animationsetStartOffset((i * 100) / (-1 + groupgetChildCount())); 
      animationseTinterpolator(new OvershooTinterpolator(2F)); 
      imageviewstartAnimation(animation); 
 
    } 
  } 
   
  /** 
   * 菜单显示动画 
   * 
   * @param group 
   * @param duration 
   */ 
  private void startAnimationOut(ViewGroup group,int duration){ 
    for (int i = 1; i < groupgetChildCount(); i++) { 
      final ImageView imageview = (ImageView) group 
          getChildAt(i); 
      MarginLayoutParams mlp = (MarginLayoutParams) imageviewgetLayoutParams(); 
       
      Animation animation = null; 
       
      switch (position) { 
      case LEFT_TOP: 
        animation = new TranslateAnimation(-mlpleftMargin+xOffset,0F); 
        break; 
      case RIGHT_TOP: 
        animation = new TranslateAnimation(0F,mlprightMargin - xOffset,-mlPTOPR_622_11845@argin + yOffset); 
        break; 
 
      case LEFT_BOTTOM: 
        animation = new TranslateAnimation(-mlpleftMargin+xOffset,0F); 
        break; 
 
      case RIGHT_BOTTOM: 
        animation = new TranslateAnimation(0F,mlprightMargin-xOffset,-yOffset + mlpbottomMargin); 
        break; 
      default: 
        break; 
      } 
       
      animationsetFillAfter(true);animationsetDuration(duration); 
      animationsetStartOffset(((groupgetChildCount()-i) * 100) 
          / (-1 + groupgetChildCount())); 
      animationseTinterpolator(new AnticipateInterpolator(2F)); 
      imageviewstartAnimation(animation); 
    } 
  } 
 
}

第四步:PathTestActivity.java以及用到的布局@L_146_15@main.xml代码如下：

PathTestActivity.java(基本没修改代码)代码如下:

package comtutorpath; 
 
import androidappActivity; 
import androidosBundle; 
 
public class PathTestActivity extends Activity { 
 
  @Override 
  public void onCreate(Bundle savedInstanceStatE) { 
    superonCreate(savedInstanceStatE); 
    setContentView(Rlayoutmain);   
  } 
}

@H_74_0@main.xml代码如下:

@H_489_18@ <?xml version="0" encoding="utf-8"?> <LinearLayout xmlns:android="http://scheR_622_11845@asandroidcom/apk/res/android" xmlns:tutor="http://scheR_622_11845@asandroidcom/apk/res/comtutorpath" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <comtutorpathPathMenuView android:id="@+id/text" android:layout_width="fill_parent" android:layout_height="fill_parent" tutor:position="righT_Bottom" /> </LinearLayout>

运行点击效果如下:

Android高手进阶教程(二十六)之---Android超仿Path菜单的功能实现！