RollPagerView 是一个开源的实现图片轮播的控件,我们只需要引入相应的功能包就可以直接使用
下面是本人的实例
.xml布局文件源码
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
android:orientation="vertical"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="150dp"
android:orientation="horizontal">
<com.jude.rollviewpager.RollPagerView
android:id="@+id/roll_view_pager1"
android:layout_width="match_parent"
android:layout_height="150dp"
app:rollviewpager_play_delay="3000" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ListView
android:id="@+id/listView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
</LinearLayout>
MainActivity.java源码:
package com.example.administrator.test2application;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.ViewSwitcher;
import com.jude.rollviewpager.RollPagerView;
import com.jude.rollviewpager.adapter.StaticPagerAdapter;
import com.jude.rollviewpager.hintview.ColorPointHintView;
import java.util.ArrayList;
public class MainActivity extends Activity {
private RollPagerView mRollViewPager1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mRollViewPager1 = (RollPagerView) findViewById(R.id.roll_view_pager1);
//设置播放时间间隔
mRollViewPager1.setPlayDelay(3000);
//设置透明度
mRollViewPager1.setAnimationDurtion(500);
//设置适配器
mRollViewPager1.setAdapter(new MainActivity.TestNormalAdapter());
//设置指示器(顺序依次)
//自定义指示器图片
//设置圆点指示器颜色
//设置文字指示器
//隐藏指示器
//mRollViewPager.setHintView(new IconHintView(this, R.drawable.point_focus, R.drawable.point_normal));
mRollViewPager1.setHintView(new ColorPointHintView(this, Color.YELLOW, Color.WHITE));
//mRollViewPager.setHintView(new TextHintView(this));
//mRollViewPager.setHintView(null);
final ArrayList<comment> list = new ArrayList<comment>();
comment comment1 = new comment("清晨的一缕",R.drawable.head1, "早餐走起" + "\n" + "美味早餐,开启新的一天,美滋滋", R.drawable.food3, R.drawable.food7, R.drawable.food8);
comment comment2 = new comment("沁香一片", R.drawable.head2, "吃货就是我" + "\n" + "辛苦工作了一上午,来一份美味中餐回复元气", R.drawable.food4, R.drawable.food5);
comment comment3=new comment("铃兰蝴蝶",R.drawable.head3,"美味午餐"+"\n"+"我是勤劳的小蜜蜂,为谁辛苦为谁忙?",R.drawable.lunchpic1,R.drawable.lunchpic2,R.drawable.lunchpic3);
comment comment4=new comment("依旧还是那个路口",R.drawable.head4,"#午餐##午餐#"+"\n"+"周末聚餐,又要长胖了",R.drawable.lunchpic4,R.drawable.lunchpic5,R.drawable.lunchpic6);
comment comment5 =new comment("梦悦的小灶炉",R.drawable.head5,"简略的中餐"+"\n吃饭的时间都没有,心塞塞!",R.drawable.lunchpic7);
comment comment6=new comment("中华琪食",R.drawable.head6,"#晚餐##晚餐#"+"\n"+"和老公一起出去吃,开心!",R.drawable.dinnerpic1,R.drawable.dinnerpic2,R.drawable.lunchpic3);
comment comment7=new comment("江南布衣yuan",R.drawable.head7,"#晚餐##晚餐#"+"\n"+"来来来,吃饭了",R.drawable.dinnerpic4,R.drawable.lunchpic5);
comment comment8=new comment("小吃货show",R.drawable.head8,"#晚餐##晚餐#"+"\n"+"没有食欲,来一张美食图片,诱惑下自己",R.drawable.lunchpic6);
comment comment9=new comment("点点朵朵",R.drawable.head9,"#晚餐##晚餐#"+"\n"+"出来浪,首先得对得起自己的胃才行",R.drawable.lunchpic7,R.drawable.dinnerpic8,R.drawable.dinnerpic9);
list.add(comment1);
list.add(comment2);
list.add(comment3);
list.add(comment4);
list.add(comment5);
list.add(comment6);
list.add(comment7);
list.add(comment8);
list.add(comment9);
commentAdapter adapter = new commentAdapter(
MainActivity.this,
R.layout.comment,
list);
ListView li = (ListView) findViewById(R.id.listView);
li.setAdapter(adapter);
li.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//方法1:
// TextView tv=(TextView)view.findViewById(R.id.fruit_name);
// Toast.makeText(getApplicationContext(), "选中了:"+tv.getText(),Toast.LENGTH_SHORT).show();
//方法2:
// Fruit f=list.get(position); // 从list 中获取对象(list 要加final 声明)
// Toast.makeText(getApplicationContext(), "选中了:"+f.getName(), Toast.LENGTH_SHORT).show();
comment comment_jp1 = list.get(position);
Intent intent = new Intent(MainActivity.this, jumpnew2Activity.class);
Bundle bundle = new Bundle();
bundle.putInt("headpic", comment_jp1.getImageid());
bundle.putString("username", comment_jp1.getUsername());
bundle.putString("commentwords", comment_jp1.getCommentwords());
bundle.putInt("foodpic1", comment_jp1.getFoodimage1());
bundle.putInt("foodpic2", comment_jp1.getFoodimage2());
bundle.putInt("foodpic3", comment_jp1.getFoodimage3());
intent.putExtras(bundle);
startActivity(intent);
}
});
}
private class TestNormalAdapter extends StaticPagerAdapter {
private int[] imgs = {
R.drawable.headpic1,
R.drawable.headpic2,
R.drawable.headpic3,
R.drawable.headpic4,
};
@Override
public View getView(ViewGroup container, int position) {
ImageView view = new ImageView(container.getContext());
view.setImageResource(imgs[position]);
view.setScaleType(ImageView.ScaleType.CENTER_CROP);
view.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
return view;
}
@Override
public int getCount() {
return imgs.length;
}
}
}
注意!!! 要引入com.jude:rollviewpager:1.2.9 这个包,可以直接在app.grade里面加上下面这句话,然后sync now
implementation 'com.jude:rollviewpager:1.2.9'
下面是效果截图:


上述代码里的其他功能是本人在安卓实训时和小伙伴一起合作仿做美食天下app的部分代码,若读者有兴趣,可以到我的github里下载源码运行看效果
https://github.com/jiang-congcong/imitated-writing-the-Gurmet-world-of-the-topic-of-coversation
本文介绍了一个开源的图片轮播控件RollPagerView的使用方法,通过XML布局配置和Java代码实现了图片轮播功能,并设置了播放间隔、透明度及指示器样式。
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