Eclipse Android: Different pages in one activity? -


i wanted have 80 pages in app, following code. can go 1 page next on 2 buttons. because don't want create 80 activities, have connect 80 pages in 1 activity. how work?

 package com.example.xxx;      import android.app.activity;     import android.content.intent;     import android.os.bundle;     import android.view.view;  public class pictureone extends activity {  @override protected void oncreate(bundle savedinstancestate) {     // todo auto-generated method stub     super.oncreate(savedinstancestate);     setcontentview(r.layout.pictureone);}  public void picture0 (view view){     intent = new intent(this, pagezero.class);                      startactivity(i);}}  public void picture2 (view view){     intent = new intent(this, pagetwo.class);                      startactivity(i);}}

xml:

<?xml version="1.0" encoding="utf-8"?>     <relativelayout xmlns:android="http://schemas.android.com/apk/res/android"         android:layout_width="match_parent"         android:layout_height="match_parent" >        <imageview         android:id="@+id/imageview1"         android:layout_width="200dp"         android:layout_height="200dp"         android:layout_centerinparent="true"         android:layout_marginleft="14dp"         android:src="@drawable/pic1" />      <imageview         android:id="@+id/imageview4"         android:layout_width="100dp"         android:layout_height="100dp"         android:layout_alignparentbottom="true"         android:layout_alignparentright="true"         android:src="@drawable/left"          android:onclick="picture0"/>      <imageview         android:id="@+id/imageview4"         android:layout_width="100dp"         android:layout_height="100dp"         android:layout_alignparentbottom="true"         android:layout_alignparentright="true"         android:src="@drawable/right"          android:onclick="picture2"/>  </relativelayout>

80 pages -> 80 activities, bad idea because it'll load ressources nothing. suggest take viewpager widget (wich, swipe gesture, better in idea of "pages") , use custom adapter create programmatically wich page in single class.

i usally create object class contains every attributes need , implement fragment. 

public class questionstack extends fragment {      private string textquestionstack;      @override     public view oncreateview(layoutinflater inflater, viewgroup container,             bundle savedinstancestate) {         view v = inflater.inflate(r.layout.question_row, container, false);          textview messagetextview = (textview) v.findviewbyid(r.id.title);         messagetextview.settext(textquestionstack);         return v;     } }

then adapter : 

public class questionstackadapter extends fragmentpageradapter {      private list<fragment> fragments;      public questionstackadapter (fragmentmanager fm, list<fragment> fragments) {         super(fm);         this.fragments = fragments;     }      @override        public fragment getitem(int position) {         return this.fragments.get(position);       }        @override       public int getcount() {         return this.fragments.size();       } }

and viewpager object inside activity class : 

list<fragment> flist = new arraylist<fragment>(); private questionstackadapter pageradapter; private viewpager pager;  @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         pageradapter = new questionstackadapter(getsupportfragmentmanager(), flist);          // init views         pager = (viewpager) findviewbyid(r.id.pagerquestionstack);         pager.setadapter(pageradapter); }

now souhld have try :)


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