[Android] Youku ring menu-Rotate animation

Get House, menu icon ImageView object, get three rings relativelayout Object

Set the Click event to the menu icon (icon_menu)

Defines a member variable islevel3show to store whether the third-level menu is displayed

Judging the above variables to show the hidden third level menu, define a class to animate the effect

Toggle variable,islevel3show=!islevel3show

Define a tool class myutilsto achieve rotational animation

Define a startanimout ()

Gets the rotateanimation object, the default center of the rotated object is the upper-left corner, and the start degree defaults to a horizontal right of 0 degrees, clockwise; constructor: Start degree, end degree, center Point x (half width), center y (height)

Call the setduration () method of the rotateanimation Object , set the execution time, parameter: milliseconds

Call the Setfillafter () method of the rotateanimation Object , set the hold state after execution, parameter: Boolean

Define a startanimin (), parameter:relativelayout object, delay milliseconds

Like the above, the degrees are different, from the degree of longitude to the degree of

Call the Setstartoffset () method of the rotateanimation object to delay playback

Set the Click event to the House icon (icon_home)

Determine when the level two menu is displayed, hide it, and hide it when the level three menu is displayed

When it hides, let him show

Mainactivity.java

 PackageCom.tsh.myyouku;Importandroid.app.Activity;ImportAndroid.os.Bundle;ImportAndroid.view.View;ImportAndroid.view.View.OnClickListener;ImportAndroid.widget.ImageView;Importandroid.widget.RelativeLayout; Public classMainactivityextendsActivityImplementsOnclicklistener {PrivateImageView Icon_home; PrivateImageView Icon_menu; Privaterelativelayout Level1; PrivateRelativelayout Level2; Privaterelativelayout level3; Private Booleanislevel3show=true; Private Booleanislevel2show=true; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);        Setcontentview (R.layout.activity_main); Icon_home=(ImageView) Findviewbyid (r.id.icon_home); Icon_menu=(ImageView) Findviewbyid (R.id.icon_menu); Level1=(relativelayout) Findviewbyid (R.ID.LEVEL1); Level2=(relativelayout) Findviewbyid (R.ID.LEVEL2); Level3=(relativelayout) Findviewbyid (R.ID.LEVEL3); Icon_menu.setonclicklistener ( This); Icon_home.setonclicklistener ( This); }    //Handling Click events@Override Public voidOnClick (View v) {Switch(V.getid ()) { CaseR.id.icon_menu://Menu Icon            if(islevel3show) {//HiddenMyutils.startanimout (level3,0); }Else{                //Showmyutils.startanimin (LEVEL3); } islevel3show=!islevel3show;  Break;  CaseR.id.icon_home://Menu Icon            if(islevel2show) {//HiddenMyutils.startanimout (level2,0); if(islevel3show) {myutils.startanimout (LEVEL3,100); Islevel3show=false; }            }Else{                //Showmyutils.startanimin (LEVEL2); } islevel2show=!islevel2show;  Break; }    }}

Myutils.java

 PackageCom.tsh.myyouku;Importandroid.view.animation.RotateAnimation;Importandroid.widget.RelativeLayout; Public classMyutils {/*** Spin away *@paramView*/     Public Static voidStartanimout (Relativelayout view,LongTimes ) {rotateanimation rotateanimation=NewRotateanimation (0, View.getwidth ()/2, View.getheight ()); Rotateanimation.setduration (1000); Rotateanimation.setfillafter (true);        Rotateanimation.setstartoffset (times);    View.startanimation (rotateanimation); }    /*** Rotate to enter *@paramLevel3*/     Public Static voidstartanimin (relativelayout view) {rotateanimation rotateanimation=NewRotateanimation (View.getwidth ()/2, View.getheight ()); Rotateanimation.setduration (1000); Rotateanimation.setfillafter (true);    View.startanimation (rotateanimation); }}

[Android] Youku ring menu-Rotate animation