2024年安卓轮播图代码+定时翻页

asda

这里是Fragment子类的继承如果使用  AppCompatActivity请修改一下很简单的如果又看不懂的话可以访问使用我的gpt：https://0.00000.work/  免费3.5的  直接吧代码扔给他然后和他说帮忙解释一下每一行作用

  Integer[] data={R.drawable.c1,R.drawable.c2,R.drawable.c3};为三张图片 自己放进去一下就可以了

java代码

package com.example.lbt4.menu;

import android.content.Intent;
import android.os.Bundle;

import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.viewpager.widget.PagerAdapter;
import androidx.viewpager.widget.ViewPager;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import com.example.lbt4.HomeNurse.HomeFrom;
import com.example.lbt4.HomeNurse.HomeNurse;
import com.example.lbt4.R;

public class IndexFragment extends Fragment {


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        View inflate = inflater.inflate(R.layout.fragment_index, container, false);
        TextView viewById = inflate.findViewById(R.id.textView3);
        ViewPager viewById1 = inflate.findViewById(R.id.viewPager2);

        Integer[] data={R.drawable.c1,R.drawable.c2,R.drawable.c3};


        inflate.findViewById(R.id.button).setOnClickListener(view -> {

            Intent intent = new Intent().setClass(inflate.getContext(), HomeNurse.class);
            startActivity(intent);


        });


        viewById1.setAdapter(new PagerAdapter() {
            @Override
            public int getCount() {
                return 9999;
            }

            @Override
            public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
                return view==object;
            }

            @NonNull
            @Override
            public Object instantiateItem(@NonNull ViewGroup container, int position) {
                int i=position%data.length;

                View inflate = inflater.inflate(R.layout.image_image, container, false);
                ImageView imageView = inflate.findViewById(R.id.imageView);
                imageView.setImageResource(data[i]);


                container.addView(inflate);
            return inflate;
            }

            @Override
            public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
                container.removeView((View) object);
            }
        });


        viewById1.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

            }

            @Override
            public void onPageSelected(int position) {
                int i=position%data.length;
                viewById.setText((i+1)+"/"+data.length);
            }

            @Override
            public void onPageScrollStateChanged(int state) {

            }
        });

            new Thread(new Runnable() {
                @Override
                public void run() {
                    while (true){
                        inflate.post(()->{
                            viewById1.setCurrentItem(viewById1.getCurrentItem()+1);

                        });


                        try {
                            Thread.sleep(5000);
                        } catch (InterruptedException e) {
                            throw new RuntimeException(e);
                        }

                    }

                }
            }).start();




        // Inflate the layout for this fragment
        return inflate;
    }
}

xml视图代码

<?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=".menu.IndexFragment">


    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="61dp"
        android:text="社区卫生服务中心"
        android:textSize="30dp"
        android:textStyle="bold"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="65dp"
        android:layout_marginBottom="173dp"
        android:text="预约服务"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent" />

    <TextView
        android:id="@+id/textView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="184dp"
        android:layout_marginTop="18dp"
        android:text="1/1"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/viewPager2" />

    <androidx.viewpager.widget.ViewPager
        android:id="@+id/viewPager2"
        android:layout_width="400dp"
        android:overScrollMode="never"
        android:layout_height="176dp"
        android:layout_marginTop="156dp"
        app:layout_constraintEnd_toEndOf="@+id/textView3"
        app:layout_constraintHorizontal_bias="0.502"
        app:layout_constraintStart_toEndOf="@+id/textView3"
        app:layout_constraintTop_toTopOf="parent" />

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="65dp"
        android:layout_marginBottom="57dp"
        android:text="上门护理"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent" />

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="56dp"
        android:layout_marginBottom="57dp"
        android:text="上门体检"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

实现 效果：

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