Android-based pedometer (pedometer) explanation (a)--fragment page jump

The first thing to do is to implement a few page jumps, both similar to the click button to toggle the page.

Words do not say, this is a simple page switch demo, first put a few pieces of the implementation of the effect:

The bottom of the picture is 5 RadioButton, which is used for switching between pages. The rest is a linearlayout layout that is used to set up 5 fragment (fragments) of the page.

Altogether 5 classes are used: mainactivity, Myadapter, Fragmenthistory, Fragmentanalysis, Fragmentpedometer, FRAGMENTPK, FragmentSet

The main code for mainactivity is as follows:

Package Com.example.changepage1;import Java.util.arraylist;import Java.util.list;import android.os.Bundle;import Android.support.v4.app.fragment;import Android.support.v4.app.fragmentactivity;import Android.widget.RadioGroup; public class Mainactivity extends Fragmentactivity {private Radiogroup rg;private list<fragment> fragments;@ overrideprotected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview ( R.layout.page_mian); rg = (Radiogroup) Findviewbyid (r.id.radiogroup);//Instantiate radiogroupfragments = new arraylist< Fragment> ();//Add 5 Fragmentfragments.add respectively (new Fragmenthistory ()); Fragments.add (new Fragmentanalysis ()); Fragments.add (New Fragmentpedometer ()); Fragments.add (new FRAGMENTPK ()); Fragments.add (new Fragmentset ()); new Myadapter (This, fragments, r.id.fragment, RG);//Set Adapter}}

the code for Myadapter is as follows:

Package Com.example.changepage1;import Java.util.list;import Android.support.v4.app.fragment;import Android.support.v4.app.fragmentactivity;import Android.support.v4.app.fragmenttransaction;import Android.widget.radiogroup;import android.widget.radiogroup.oncheckedchangelistener;/** * This is an adapter written by yourself * * @author Li Wu Super Date:2015-1-2 time: 3 o'clock in the afternoon */public class Myadapter implements Oncheckedchangelistener {private list<fragment> FRAGM Ents; A tab page corresponds to a fragmentprivate radiogroup RGS; For switching tabprivate fragmentactivity fragmentactivity; Fragment belongs to activityprivate int fragmentcontentid; idprivate int currenttab = 2 of the area to be replaced in the activity; Current tab page index public myadapter (fragmentactivity fragmentactivity,list<fragment> fragments, int fragmentcontentid , Radiogroup rgs) {this.fragments = Fragments;this.rgs = Rgs;this.fragmentactivity = fragmentactivity; This.fragmentcontentid = fragmentcontentid;//shows the first page by default fragmenttransaction ft = Fragmentactivity.getsupportfragmentmanager (). begintransactiOn (); Ft.add (Fragmentcontentid, Fragments.get (2)); Ft.commit (); This.rgs.setOnCheckedChangeListener (this);} /** * Monitor RadioButton change time, when selected different RadioButton will start this function */public void oncheckedchanged (radiogroup group, int checkedid) {for ( int i = 0; I < Rgs.getchildcount (); i++) {if (Rgs.getchildat (i). GetId () = = Checkedid) {Fragment Fragment = Fragments.get (i); Fragmenttransaction ft = obtainfragmenttransaction (i); Getcurrentfragment (). OnPause (); Pause the current tabif (fragment.isadded ()) {fragment.onresume ();//Start the Target tab of the Onresume ()} else {Ft.add (Fragmentcontentid, fragment);} ShowTab (i); Show Target Tabft.commit ();}}} Public Fragment getcurrentfragment () {return fragments.get (currenttab);} private void ShowTab (int idx) {for (int i = 0; i < fragments.size (); i++) {Fragment Fragment = Fragments.get (i); Fragmenttransaction ft = obtainfragmenttransaction (idx), if (idx = = i) {ft.show (fragment);} else {ft.hide (fragment);} Ft.commit ();} Currenttab = idx; Update Target tab is current Tab}private fragmenttransaction obtainfragmenttransaction(int index) {fragmenttransaction ft = Fragmentactivity.getsupportfragmentmanager (). BeginTransaction ();//Set Toggle Animation if (Index > Currenttab) {ft.setcustomanimations (r.anim.slide_left_in, r.anim.slide_left_out);} else {ft.setcustomanimations ( R.anim.slide_right_in,r.anim.slide_right_out);} return ft;}}

The codes for Fragmenthistory, Fragmentanalysis, Fragmentpedometer, FRAGMENTPK, and Fragmentset are:

Package Com.example.changepage1;import Android.os.bundle;import Android.support.v4.app.fragment;import Android.view.layoutinflater;import Android.view.view;import android.view.viewgroup;/** * This is a fragment of the analysis of seven-day steps * Author: Li Wu Super   email:[email Protected] * date:2015-1-2 * Time: PM 2:39 */public class Fragmentanalysis extends Fragment{private View View, @Overridepublic view Oncreateview (Layoutinflater inflater, ViewGroup container,bundle savedinstancestate) {view = Inflater.inflate (R.layout.analysis, container, false); return view;}}

Package Com.example.changepage1;import Android.os.bundle;import Android.support.v4.app.fragment;import Android.view.layoutinflater;import Android.view.view;import android.view.viewgroup;/** * This is a fragment of history * Author: Li Wu Super   Email:[email Protected] * date:2015-1-2 * Time: PM 2:39 */public Class Fragmenthistory extends fragment{private view view; @Overridepublic View Oncreateview (Layoutinflater inflater, ViewGroup container,bundle savedinstancestate) {view = Inflater.inflate (R.layout.history, container, false); return view;}}

Package Com.example.changepage1;import Android.os.bundle;import Android.support.v4.app.fragment;import Android.view.layoutinflater;import Android.view.view;import android.view.viewgroup;/** * This is the fragment of the step * Author: Li Wu Super   Email:[email Protected] * date:2015-1-2 * Time: PM 2:39 */public class Fragmentpedometer extends Fragment{private View vie W; @Overridepublic View Oncreateview (Layoutinflater inflater, ViewGroup container,bundle savedinstancestate) {view = Inflater.inflate (R.layout.pedometer, container, false); return view;}}

Package Com.example.changepage1;import Android.os.bundle;import Android.support.v4.app.fragment;import Android.view.layoutinflater;import Android.view.view;import android.view.viewgroup;/** * This is the fragment of the step * Author: Li Wu Super   Email:[email Protected] * date:2015-1-2 * Time: PM 2:39 */public Class FRAGMENTPK extends Fragment{private view view; @Over Ridepublic View Oncreateview (Layoutinflater inflater, ViewGroup container,bundle savedinstancestate) {view = Inflater.inflate (r.layout.pk, container, false); return view;}}

Package Com.example.changepage1;import Android.os.bundle;import Android.support.v4.app.fragment;import Android.view.layoutinflater;import Android.view.view;import android.view.viewgroup;/** * This is the set fragment * Author: Li Wu Super   Email:[email Protected] * date:2015-1-2 * Time: PM 2:39 */public Class Fragmentset extends Fragment{private view view; @Ove Rridepublic View Oncreateview (Layoutinflater inflater, ViewGroup container,bundle savedinstancestate) {view = Inflater.inflate (R.layout.set, container, false); return view;}}

The complete demo of this example is in:

http://download.csdn.net/detail/a296777513/8320619

Android-based pedometer (pedometer) (i)--fragment page jump