Android使用ViewPager实现启动引导页效果
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2022-04-12 13:19:55
本文实例为大家分享了android实现启动引导页效果的具体代码,供大家参考,具体内容如下viewpagertwoactivity.javapackage cn.edu.zufe.app001;impo...
本文实例为大家分享了android实现启动引导页效果的具体代码,供大家参考,具体内容如下
viewpagertwoactivity.java
package cn.edu.zufe.app001; import androidx.annotation.nonnull; import androidx.appcompat.app.appcompatactivity; import androidx.viewpager.widget.pageradapter; import androidx.viewpager.widget.viewpager; import android.content.context; import android.os.bundle; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; import android.widget.button; import android.widget.imageview; import android.widget.radiobutton; import android.widget.radiogroup; import android.widget.toast; import java.util.arraylist; public class viewpagertwoactivity extends appcompatactivity { private int[] launchimagearray = new int[]{ r.drawable.guide_bg1,r.drawable.guide_bg2,r.drawable.guide_bg3,r.drawable.guide_bg4 }; @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_view_pager_two); viewpager vp_launch = (viewpager)findviewbyid(r.id.vp_launch); launchsimpleadapter adapter = new launchsimpleadapter(this,launchimagearray); vp_launch.setadapter(adapter); vp_launch.setcurrentitem(0); } class launchsimpleadapter extends pageradapter{ private context mcontext; private arraylist<view> mviewlist = new arraylist<view>(); public launchsimpleadapter(final context context, int[] imagearray){ mcontext = context; for(int i=0; i<imagearray.length; i++){ view view = layoutinflater.from(context).inflate(r.layout.item_launch,null); imageview iv_launcher = (imageview)view.findviewbyid(r.id.iv_launch); radiogroup rg_indicate = (radiogroup)view.findviewbyid(r.id.rg_indicate); button btn_start = (button)view.findviewbyid(r.id.btn_start); iv_launcher.setimageresource(imagearray[i]); for(int j=0; j<imagearray.length; j++){ radiobutton radio = new radiobutton(mcontext); radio.setlayoutparams(new viewgroup.layoutparams(viewgroup.layoutparams.wrap_content, viewgroup.layoutparams.wrap_content)); radio.setbuttondrawable(r.drawable.launch_guide); radio.setpadding(10,10,10,10); rg_indicate.addview(radio); } ((radiobutton)rg_indicate.getchildat(i)).setchecked(true); if (i == imagearray.length-1) { btn_start.setvisibility(view.visible); btn_start.setonclicklistener(new view.onclicklistener() { @override public void onclick(view v) { toast.maketext(context,"欢迎您开启美好生活",toast.length_short).show(); } }); } mviewlist.add(view); } } @override public void destroyitem(@nonnull viewgroup container, int position, @nonnull object object) { container.removeview(mviewlist.get(position)); } @nonnull @override public object instantiateitem(@nonnull viewgroup container, int position) { container.addview(mviewlist.get(position)); return mviewlist.get(position); } @override public int getcount() { return mviewlist.size(); } @override public boolean isviewfromobject(@nonnull view view, @nonnull object o) { return view == o; } } }
activity_view_pager_two.xml
<?xml version="1.0" encoding="utf-8"?> <androidx.constraintlayout.widget.constraintlayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="cn.edu.zufe.app001.viewpagertwoactivity"> <androidx.viewpager.widget.viewpager android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/vp_launch"> </androidx.viewpager.widget.viewpager> </androidx.constraintlayout.widget.constraintlayout>
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。
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