Android realizes NetEase news client side-slip menu (ii)

The above has been said through the three-party open Source Library Slidemenu to achieve this effect, please refer to the Android implementation of NetEase news client side-slip menu (a)

Today, this feature is implemented by customizing view.

The code is as follows:

Slidemenu.java

<span style= "FONT-FAMILY:SIMSUN;FONT-SIZE:14PX;" >package Com.jackie.slidemenu.view;import Android.content.context;import Android.graphics.canvas;import Android.util.attributeset;import Android.view.motionevent;import Android.view.view;import Android.view.viewconfiguration;import Android.view.viewgroup;import Android.widget.scroller;public class SlideMenu Extends ViewGroup {private int mmostrecentx;//last x-axis offset private final int menu_screen = 0;//Menu Interface Private final int main_s Creen = 1;//Main interface private int mcurrentscreen = main_screen;//The current screen shows the main interface private Scroller mscroller;private int Touchslop;pu Blic Slidemenu (Context context, AttributeSet Attrs) {Super (context, attrs); mscroller = new Scroller (context); Touchslop = Viewconfiguration.get (context). Getscaledtouchslop ();} /** * Measures the width and height of all sub-layouts */@Overrideprotected void onmeasure (int widthmeasurespec, int heightmeasurespec) {super.onmeasure ( Widthmeasurespec, Heightmeasurespec); Measureview (Widthmeasurespec, heightmeasurespec);} /** * Measure the width of all sub-layoutsand high * @param widthmeasurespec parent layout is viewgroup width measurement specification * @param heightmeasurespec parent layout is viewgroup height measurement specification */private void MEAs Ureview (int widthmeasurespec, int heightmeasurespec) {//Measurement menu width and height view Menuview = getchildat (0); Menuview.measure ( Menuview.getlayoutparams (). width, heightmeasurespec);//measurement of the main interface width and height view MainView = getchildat (1); Mainview.measure ( Widthmeasurespec, Heightmeasurespec);//the width and height of the main interface is the same as the height of the parent control ViewGroup} @Overrideprotected void OnLayout (Boolean changed, int l, int t, int r, int b) {//Layout menu location View Menuview = Getchildat (0); Menuview.layout (-menuview.getmeasuredwidth (), 0, 0, b )///Layout The main interface location View MainView = Getchildat (1); mainview.layout (0, 0, R, b);} @Overridepublic boolean ontouchevent (Motionevent event) {switch (event.getaction ()) {case Motionevent.action_down: Mmostrecentx = (int) event.getx (); break;case motionevent.action_move://latest x-axis offset int moveX = (int) event.getx ();//increment value int DeltaX = mmostrecentx-movex;//Assigns the latest x-axis offset to the member variable Mmostrecentx = movex;//Gets the offset after the x-axis is shifted int newscrollx = GetscrollX () + deltax;if (Newscrollx <-getchildat (0). GetWidth ()) {//The offset of the current screen x-axis exceeds the left edge of the menu//back to the left edge of the menu Scrollto (-getchildat (0 ). GetWidth (), 0);} else if (Newscrollx > 0) {//exceeds the right boundary of the main interface//back to the right edge of the main interface Scrollto (0, 0);} else {Scrollby (deltax, 0);} Break;case MotionEvent.ACTION_UP:int scrollx = Getscrollx (); X-axis The latest offset int menuxcenter =-getchildat (0). GetWidth ()/2;//menu X-Axis Center point if (Scrollx > Menuxcenter) {//switch to main interface mcurrentscre En = Main_screen;} else {//Switch to menu interface mcurrentscreen = Menu_screen;} Switchscreen (); break;default:break;} return true;} /** * Toggle Screen according to mcurrentscreen */private void Switchscreen () {int scrollx = GETSCROLLX ();//offset of current x-axis int dx = 0;IF (mcurrentscr een = = main_screen) {//switch to main interface//scrollto (0, 0);d x = 0-SCROLLX;} else if (Mcurrentscreen = Menu_screen) {//Switch to menu interface//scro Llto (-getchildat (0). GetWidth (), 0);d x =-getchildat (0). GetWidth ()-scrollx;} Mscroller.startscroll (scrollx, 0, DX, 0, Math.Abs (DX) * 5); invalidate ();//Invalidate Drawchild, Child.draw-&G T Computescroll}/** * InvaLidate departure This method, update the offset of the x-axis of the screen */@Overridepublic void Computescroll () {if (Mscroller.computescrolloffset ()) {///determine if the data is being simulated, True false data simulation completed Scrollto (Mscroller.getcurrx (), 0); invalidate ();//Computescroll call}}/** * Show Menu * @return */ public Boolean Isshowmenu () {return mcurrentscreen = = Menu_screen;} /** * Hide menu */public void Hidemenu () {mcurrentscreen = Main_screen;switchscreen ();} /** * Show menu */public void ShowMenu () {mcurrentscreen = Menu_screen;switchscreen ();} /** * Method of intercepting Events */@Overridepublic Boolean onintercepttouchevent (motionevent ev) {switch (ev.getaction ()) {case Motionevent . Action_down:mmostrecentx = (int) ev.getx (); break;case MotionEvent.ACTION_MOVE:int diffx = (int) (EV.GETX ()- MMOSTRECENTX); if (Math.Abs (DIFFX) > Touchslop) {return true;} Break;default:break;} return super.onintercepttouchevent (EV);}} </span>

Mainactivity.java

<span style= "FONT-FAMILY:SIMSUN;FONT-SIZE:14PX;" >package Com.jackie.slidemenu;import Com.jackie.slidemenu.view.slidemenu;import Android.os.Bundle;import Android.app.activity;import Android.view.menu;import Android.view.view;import Android.view.View.OnClickListener; Import Android.view.window;import Android.widget.textview;import Android.widget.toast;public class MainActivity Extends Activity implements Onclicklistener {private slidemenu mslidemenu; @Overrideprotected void OnCreate (Bundle Savedinstancestate) {super.oncreate (savedinstancestate);//Remove title, need to call Requestwindowfeature before Setcontentview ( Window.feature_no_title); Setcontentview (r.layout.activity_main); mslidemenu = (Slidemenu) findViewById ( R.id.slidemenu); Findviewbyid (R.id.iv_slidemenu_main_back). Setonclicklistener (this);} @Overridepublic boolean Oncreateoptionsmenu (Menu menu) {//Inflate the menu; This adds items to the action bar if it is PR Esent.getmenuinflater (). Inflate (R.menu.main, menu); return true;} @Overridepublic void OnCLick (View v) {if (Mslidemenu.isshowmenu ()) {Mslidemenu.hidemenu ();} else {mslidemenu.showmenu ();}} public void Click (View v) {TextView TV = (TextView) v; Toast.maketext (this, Tv.gettext (), 0). Show ();}} </span>

Android realizes NetEase news client side-slip menu (ii)