package com.ljp.pathmenu;
import android.content.Context;
import android.view.ViewGroup;
import android.view.ViewGroup.MarginLayoutParams;
import android.view.animation.Animation;
import android.view.animation.AnticipateInterpolator;
import android.view.animation.OvershootInterpolator;
import android.view.animation.RotateAnimation;
import android.view.animation.TranslateAnimation;
import android.widget.ImageButton;
public class MyAnimations{
private static int xOffset = 15;
private static int yOffset = -13;
public static void initOffset(Context context){//由布局文件
xOffset = (int) (10.667 *context.getResources().getDisplayMetrics().density);
yOffset = -(int) (8.667 *context.getResources().getDisplayMetrics().density);
}
public static Animation getRotateAnimation(float fromDegrees ,float toDegrees,int durationMillis){
RotateAnimation rotate = new RotateAnimation(fromDegrees, toDegrees,
Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
rotate.setDuration(durationMillis);
rotate.setFillAfter(true);
return rotate;
}
public static void startAnimationsIn(ViewGroup viewgroup,int durationMillis) {
for (int i = 0; i < viewgroup.getChildCount(); i++) {
ImageButton inoutimagebutton = (ImageButton) viewgroup
.getChildAt(i);
inoutimagebutton.setVisibility(0);
MarginLayoutParams mlp = (MarginLayoutParams) inoutimagebutton.getLayoutParams();
Animation animation = new TranslateAnimation(mlp.rightMargin-xOffset,0F,yOffset + mlp.bottomMargin, 0F);
animation.setFillAfter(true);animation.setDuration(durationMillis);
animation.setStartOffset((i * 100)
/ (-1 + viewgroup.getChildCount()));
animation.setInterpolator(new OvershootInterpolator(2F));
inoutimagebutton.startAnimation(animation);
}
}
public static void startAnimationsOut(ViewGroup viewgroup,int durationMillis) {
for (int i = 0; i < viewgroup.getChildCount(); i++) {
final ImageButton inoutimagebutton = (ImageButton) viewgroup
.getChildAt(i);
MarginLayoutParams mlp = (MarginLayoutParams) inoutimagebutton.getLayoutParams();
Animation animation = new TranslateAnimation(0F,mlp.rightMargin-xOffset, 0F,yOffset + mlp.bottomMargin);
animation.setFillAfter(true);animation.setDuration(durationMillis);
animation.setStartOffset(((viewgroup.getChildCount()-i) * 100)
/ (-1 + viewgroup.getChildCount()));//顺序倒一下比较舒服
animation.setInterpolator(new AnticipateInterpolator(2F));
animation.setAnimationListener(new Animation.AnimationListener() {
@Override
public void onAnimationStart(Animation arg0) {}
@Override
public void onAnimationRepeat(Animation arg0) {}
@Override
public void onAnimationEnd(Animation arg0) {
// TODO Auto-generated method stub
inoutimagebutton.setVisibility(8);
}
});
inoutimagebutton.startAnimation(animation);
}
}
}
Android 原来PATH的菜单效果如此简单。布局+TranslateAnimation搞定-IT计算机-毕业设计.zip （52个子文件） 
Android 原来PATH的菜单效果如此简单。布局+TranslateAnimation搞定 PathMenu bin 
classes.dex 8KB res drawable-ldpi 
ic_launcher.png 2KB drawable-hdpi composer_with.png 3KB ic_launcher.png 4KB composer_thought.png 2KB composer_camera.png 2KB composer_sleep.png 3KB composer_button.png 3KB composer_icn_plus.png 164B composer_place.png 3KB composer_music.png 3KB composer_sun.png 1KB drawable-mdpi ic_launcher.png 2KB PathMenu.apk 467KB classes com ljp pathmenu PathMenuActivity$1.class 2KB R$layout.class 388B R$id.class 788B R$drawable.class 785B R$attr.class 334B R.class 561B PathMenuActivity$2.class 786B MyAnimations$1.class 1KB R$string.class 421B PathMenuActivity.class 2KB R$anim.class 421B MyAnimations.class 3KB resources.ap_ 461KB res drawable-ldpi ic_launcher.png 2KB drawable-hdpi composer_with.png 3KB ic_launcher.png 4KB composer_thought.png 2KB composer_camera.png 2KB composer_sleep.png 3KB composer_button.png 3KB composer_icn_plus.png 164B
default_homebg.jpg 427KB composer_place.png 3KB composer_music.png 3KB composer_sun.png 4KB values strings.xml 182B drawable-mdpi ic_launcher.png 3KB anim rotate_out.xml 364B rotate_in.xml 364B layout main.xml 4KB assets gen com ljp pathmenu R.java 2KB proguard.cfg 1KB src com ljp pathmenu MyAnimations.java 3KB PathMenuActivity.java 2KB .project 844B .classpath 364B project.properties 360B AndroidManifest.xml 737B
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