Android使用RollViewPager实现轮播图

记录Android中轮播图的学习与使用，供大家参考，具体内容如下

1、build.gradle(:app)文件里面加依赖

implementation 'com.jude:rollviewpager:1.2.9'

2、activity_main.xml

<com.jude.rollviewpager.RollPagerView
    android:id="@+id/roll_view_pager"
    android:layout_width="match_parent"
    android:layout_height="180dp"
    app:rollviewpager_play_delay="3000" />

3、MainActivity.java

import androidx.appcompat.app.AppCompatActivity;

import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;

import com.jude.rollviewpager.RollPagerView;
import com.jude.rollviewpager.adapter.StaticPagerAdapter;
import com.jude.rollviewpager.hintview.ColorPointHintView;

public class MainActivity extends AppCompatActivity {

    private RollPagerView mRollPagerView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mRollPagerView=findViewById(R.id.roll_view_pager);

        //设置播放时间间隔
        mRollPagerView.setPlayDelay(3000);

        //设置透明度
        mRollPagerView.setAnimationDurtion(500);

        //设置适配器
        mRollPagerView.setAdapter(new TestNormalAdapter());

        //设置圆点指示器颜色
        mRollPagerView.setHintView(new ColorPointHintView(this, Color.YELLOW,Color.WHITE));
    }

    //自定义适配器
    private class TestNormalAdapter extends StaticPagerAdapter{
        //轮播所需照片
  private int[] imgs={
                R.drawable.daxuesheng,
                R.drawable.daxuesheng2,
        };
        @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;
        }
    };
}

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我们。