模仿Path菜单按钮的效果
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利用Animation动画实现Path菜单的效果。
首先说一下几个动画
1，RotateAnimation 是旋转动画，
new RotateAnimation(fromDegrees, toDegrees, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
实例化时，包含6个参数，第一个参数是图片从多少角度开始，第二个参数是旋转到多少角度，第三个是x坐标的伸缩模式，Animation.RELATIVE_TO_SELF,是指以自身，第四个x坐标的伸缩比例，第五个第六个是y坐标的
2，new TranslateAnimation(0, toXDelta, 0, toYDelta)
包含四个参数比较容易理解，第一个x坐标开始位置，x坐标结束位置（都是相对当前坐标）同理3,4参数
3，new ScaleAnimation(1f, 2f, 1f, 2f);
缩放动画，第一个是x坐标开始时的缩放比例，第二个是x坐标结束时的缩放比例，3,4同理
4，new AlphaAnimation(1f, 0.3f);
透明度，0为完全透明，1为完全不透明，第一个参数是初始值，第二个是结束值
Path的按钮只是一个按钮，点击效果是，按钮旋转同时，弹出多个小按钮，再次点击按钮，旋转，回收小按钮。点击小按钮，按钮放大，进入相应的界面。
自己的做模仿效果，基本完成。xml文件如下
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@drawable/startup"> <Button android:id="@+id/btn_composer_camera" android:layout_width="30dip" android:layout_height="30dip" android:layout_marginLeft="40dip" android:layout_alignParentBottom="true" android:layout_marginBottom="40dip" android:background="@drawable/composer_camera" /> <Button android:id="@+id/btn_composer_music" android:layout_width="30dip" android:layout_height="30dip" android:layout_marginLeft="40dip" android:layout_alignParentBottom="true" android:layout_marginBottom="40dip" android:background="@drawable/composer_music" /> <Button android:id="@+id/btn_composer_place" android:layout_width="30dip" android:layout_height="30dip" android:layout_marginLeft="40dip" android:layout_alignParentBottom="true" android:layout_marginBottom="40dip" android:background="@drawable/composer_place" /> <Button android:id="@+id/btn_composer_sleep" android:layout_width="30dip" android:layout_height="30dip" android:layout_marginLeft="40dip" android:layout_alignParentBottom="true" android:layout_marginBottom="40dip" android:background="@drawable/composer_sleep" /> <Button android:id="@+id/btn_composer_thought" android:layout_width="30dip" android:layout_height="30dip" android:layout_marginLeft="40dip" android:layout_alignParentBottom="true" android:layout_marginBottom="40dip" android:background="@drawable/composer_thought" /> <Button android:id="@+id/btn_composer_with" android:layout_width="30dip" android:layout_height="30dip" android:layout_marginLeft="40dip" android:layout_alignParentBottom="true" android:layout_marginBottom="40dip" android:background="@drawable/composer_with" /> <RelativeLayout android:layout_width="70dp" android:layout_height="70dp" android:layout_marginLeft="30dip" android:layout_alignParentBottom="true" android:layout_marginBottom="30dip" android:background="@drawable/composer_button" > <Button android:id="@+id/btn_composer" android:layout_width="30dp" android:layout_height="30dp" android:background="@drawable/composer_icn_plus" android:layout_centerInParent="true" /> </RelativeLayout></RelativeLayout>
package com.ze.app.ImitatePath;import android.app.Activity;import android.os.Bundle;import android.view.Display;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup.MarginLayoutParams;import android.view.animation.AlphaAnimation;import android.view.animation.Animation;import android.view.animation.AnimationSet;import android.view.animation.RotateAnimation;import android.view.animation.ScaleAnimation;import android.view.animation.TranslateAnimation;import android.view.animation.Animation.AnimationListener;import android.widget.Button;import android.widget.RelativeLayout.LayoutParams;public class ImitatePathActivity extends Activity {Button btn_main, btn_camera, btn_music, btn_with, btn_thought, btn_sleep, btn_place;static int screen_width, screen_height;Animation rotateAnimation, translateAnimation, scaleAnimation, alphaAnimation;AnimationSet setAnimation;static boolean isPress = false;LayoutParams params = new LayoutParams(0,0);int x,y; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.path_view); setXY(); initWiget(); } int composeX[],composeY[]; void setXY() { composeX = new int[6]; composeY = new int[6]; for (int i = 0; i < 6; i++) {composeX[i] = getX(90-i*18, 150);composeY[i] = getY(90 - i*18, 150);} } int getY(int degress, float r) { return (int)(r * Math.sin(Math.PI*(degress/180f))); } int getX(int degress, float r) { return (int)(r * Math.cos(Math.PI*(degress/180f))); } void initWiget() { Display display = getWindowManager().getDefaultDisplay(); screen_height = display.getHeight(); screen_width = display.getWidth(); //用来根据比例缩放？ btn_main = (Button)findViewById(R.id.btn_composer); btn_camera = (Button)findViewById(R.id.btn_composer_camera); btn_music = (Button)findViewById(R.id.btn_composer_music); btn_place = (Button)findViewById(R.id.btn_composer_place); btn_with = (Button)findViewById(R.id.btn_composer_with); btn_sleep = (Button)findViewById(R.id.btn_composer_sleep); btn_thought = (Button)findViewById(R.id.btn_composer_thought); btn_main.setOnClickListener(listener); setOnclik(false); bindListener(); initAnimation(); } void initAnimation() { setAnimation = new AnimationSet(true); setAnimation.addAnimation(getAlphaAnimation()); setAnimation.addAnimation(getScaleAnimation()); setAnimation.setAnimationListener(new AnimationListener() {@Overridepublic void onAnimationStart(Animation animation) {// TODO Auto-generated method stub}@Overridepublic void onAnimationRepeat(Animation animation) {// TODO Auto-generated method stub}@Overridepublic void onAnimationEnd(Animation animation) {// TODO Auto-generated method stubcloseButton();}}); } BtnOnclick listener = new BtnOnclick(); void bindListener() { btn_camera.setOnClickListener(listener); btn_thought.setOnClickListener(listener); btn_music.setOnClickListener(listener); btn_sleep.setOnClickListener(listener); btn_with.setOnClickListener(listener); btn_place.setOnClickListener(listener); } void setOnclik(boolean isSet) { btn_camera.setClickable(isSet); btn_music.setClickable(isSet); btn_place.setClickable(isSet); btn_with.setClickable(isSet); btn_thought.setClickable(isSet); btn_sleep.setClickable(isSet); } void openButton() { isPress = true;btn_main.startAnimation(getRotateAnimation(0f,-180-45f));btn_camera.startAnimation(getTranslateAnimation(composeX[0]+15, -composeY[0]-15,btn_camera,composeX[0],composeY[0],180));btn_with.startAnimation(getTranslateAnimation(composeX[1]+15, -composeY[1]-15,btn_with,composeX[1],composeY[1],160));btn_music.startAnimation(getTranslateAnimation(composeX[2]+15, -composeY[2]-15, btn_music, composeX[2],composeY[2],120));btn_place.startAnimation(getTranslateAnimation(composeX[3]+15, -composeY[3]-15, btn_place, composeX[3],composeY[3],120));btn_sleep.startAnimation(getTranslateAnimation(composeX[4]+15, -composeY[4]-15, btn_sleep, composeX[4],composeY[4],160));btn_thought.startAnimation(getTranslateAnimation(composeX[5]+15, -composeY[5]-15, btn_thought, composeX[5],composeY[5],180));setOnclik(true); } void closeButton() { isPress = false;btn_main.startAnimation(getRotateAnimation(-180-45f,0f));btn_camera.startAnimation(getTranslateAnimation(-composeX[0], composeY[0],btn_camera,-composeX[0],-composeY[0],180));btn_with.startAnimation(getTranslateAnimation(-composeX[1], composeY[1],btn_with,-composeX[1],-composeY[1],160));btn_music.startAnimation(getTranslateAnimation(-composeX[2], composeY[2], btn_music, -composeX[2],-composeY[2],120));btn_place.startAnimation(getTranslateAnimation(-composeX[3], composeY[3], btn_place, -composeX[3],-composeY[3],120));btn_sleep.startAnimation(getTranslateAnimation(-composeX[4], composeY[4], btn_sleep, -composeX[4],-composeY[4],160));btn_thought.startAnimation(getTranslateAnimation(-composeX[5], composeY[5], btn_thought, -composeX[5],-composeY[5],180));setOnclik(false); } class BtnOnclick implements OnClickListener {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubswitch (v.getId()) {case R.id.btn_composer:if (isPress) {closeButton();/*isPress = false;btn_main.startAnimation(getRotateAnimation(-180-45f,0f));btn_camera.startAnimation(getTranslateAnimation(0f, 150f, btn_camera, 0,-150,180));btn_with.startAnimation(getTranslateAnimation(-30f, 120f, btn_with, -30, -120,160));btn_music.startAnimation(getTranslateAnimation(-60f, 90f, btn_music, -60, -90,120));btn_place.startAnimation(getTranslateAnimation(-90f, 60f, btn_place, -90, -60,120));btn_sleep.startAnimation(getTranslateAnimation(-120f, 30f, btn_sleep, -120, -30,160));btn_thought.startAnimation(getTranslateAnimation(-150f, 0f, btn_thought, -150,0,180));*/btn_camera.startAnimation(getTranslateAnimation(-composeX[0], composeY[0],btn_camera,-composeX[0],-composeY[0],180));btn_with.startAnimation(getTranslateAnimation(-composeX[1], composeY[1],btn_with,-composeX[1],-composeY[1],160));btn_music.startAnimation(getTranslateAnimation(-composeX[2], composeY[2], btn_music, -composeX[2],-composeY[2],120));btn_place.startAnimation(getTranslateAnimation(-composeX[3], composeY[3], btn_place, -composeX[3],-composeY[3],120));btn_sleep.startAnimation(getTranslateAnimation(-composeX[4], composeY[4], btn_sleep, -composeX[4],-composeY[4],160));btn_thought.startAnimation(getTranslateAnimation(-composeX[5], composeY[5], btn_thought, -composeX[5],-composeY[5],180));setOnclik(false);} else {//弹出效果openButton();/*isPress = true;btn_main.startAnimation(getRotateAnimation(0f,-180-45f));btn_camera.startAnimation(getTranslateAnimation(composeX[0]+15, -composeY[0]-15,btn_camera,composeX[0],composeY[0],180));btn_with.startAnimation(getTranslateAnimation(composeX[1]+15, -composeY[1]-15,btn_with,composeX[1],composeY[1],160));btn_music.startAnimation(getTranslateAnimation(composeX[2]+15, -composeY[2]-15, btn_music, composeX[2],composeY[2],120));btn_place.startAnimation(getTranslateAnimation(composeX[3]+15, -composeY[3]-15, btn_place, composeX[3],composeY[3],120));btn_sleep.startAnimation(getTranslateAnimation(composeX[4]+15, -composeY[4]-15, btn_sleep, composeX[4],composeY[4],160));btn_thought.startAnimation(getTranslateAnimation(composeX[5]+15, -composeY[5]-15, btn_thought, composeX[5],composeY[5],180));setOnclik(true);btn_camera.startAnimation(getTranslateAnimation(0f, -180f,btn_camera,getX(90, 150),getY(90,150),180));btn_with.startAnimation(getTranslateAnimation(30f, -150f,btn_with,getX(72, 150),getY(72,150),160));btn_music.startAnimation(getTranslateAnimation(60f, -120f, btn_music, getX(54, 150),getY(54,150),120));btn_place.startAnimation(getTranslateAnimation(90f, -90f, btn_place, getX(36, 150),getY(36,150),120));btn_sleep.startAnimation(getTranslateAnimation(120f, -60f, btn_sleep, getX(18, 150),getY(18,150),160));btn_thought.startAnimation(getTranslateAnimation(150f, -30f, btn_thought, getX(0, 150),getY(0,150),180));/*btn_camera.startAnimation(getTranslateAnimation(0f, -180f,btn_camera,0,150,180));btn_with.startAnimation(getTranslateAnimation(30f, -150f,btn_with,30,120,160));btn_music.startAnimation(getTranslateAnimation(60f, -120f, btn_music, 60, 90,120));btn_place.startAnimation(getTranslateAnimation(90f, -90f, btn_place, 90, 60,120));btn_sleep.startAnimation(getTranslateAnimation(120f, -60f, btn_sleep, 120, 30,160));btn_thought.startAnimation(getTranslateAnimation(150f, -30f, btn_thought, 150, 0,180));*/}break;case R.id.btn_composer_camera: btn_camera.startAnimation(setAnimation);break;case R.id.btn_composer_music: btn_music.startAnimation(setAnimation);break;case R.id.btn_composer_place: btn_place.startAnimation(setAnimation);break;case R.id.btn_composer_sleep: btn_sleep.startAnimation(setAnimation);break;case R.id.btn_composer_thought: btn_thought.startAnimation(setAnimation);break;case R.id.btn_composer_with: btn_with.startAnimation(setAnimation);break;default:break;}} } public Animation getRotateAnimation(float fromDegrees, float toDegrees) { rotateAnimation = new RotateAnimation(fromDegrees, toDegrees, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); rotateAnimation.setDuration(300); rotateAnimation.setFillAfter(true); return rotateAnimation; } public Animation getTranslateAnimation(float toXDelta, float toYDelta,final View view, final int marginLeft, final int marginBottom, long time) { /* translateAnimation = new TranslateAnimation(0, toXDelta, 0, toYDelta); rotateAnimation.setDuration(time); MarginLayoutParams params = (MarginLayoutParams)view.getLayoutParams(); System.out.println(params.bottomMargin + " " + params.leftMargin); params.setMargins(params.leftMargin + marginLeft, 0, 0, params.bottomMargin + marginBottom); view.setLayoutParams(params); translateAnimation.setInterpolator(new OvershootInterpolator(2F)); return translateAnimation; */ translateAnimation = new TranslateAnimation(0, toXDelta, 0, toYDelta); translateAnimation.setDuration(time); translateAnimation.setAnimationListener(new AnimationListener() {@Overridepublic void onAnimationStart(Animation animation) {// TODO Auto-generated method stub}@Overridepublic void onAnimationRepeat(Animation animation) {// TODO Auto-generated method stub}@Overridepublic void onAnimationEnd(Animation animation) {// TODO Auto-generated method stub//LayoutParams params = new android.widget.RelativeLayout.LayoutParams(0,0); 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