点击左上角的ImageButton会播放存入bmob中的音频

1.除了导入使用bmob需要的jar包和权限，还需要加入显示图片的clide的gar包:

app的build.gradle页面中，dependencies内加入以下两行：

implementation ("com.github.bumptech.glide:glide:4.9.0")
annotationProcessor 'com.github.bumptech.glide:compiler:4.9.0'

 

2.bmob手动存入需要的音频和图片

 

3.Video.java页面：

package com.example.two;

import android.graphics.drawable.Drawable;

import cn.bmob.v3.BmobObject;
import cn.bmob.v3.datatype.BmobFile;

public class Video extends BmobObject {
    private BmobFile PictureVideo;
    private BmobFile Picture;

    public BmobFile getPicture() {
        return Picture;
    }

    public void setPicture(BmobFile picture) {
        Picture = picture;
    }

    public BmobFile getPictureVideo() {
        return PictureVideo;
    }

    public void setPictureVideo(BmobFile pictureVideo) {
        PictureVideo = pictureVideo;
    }
}

 

4.activity_picture.xml页面：

<?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=".PictureActivity">

    <ImageButton
        android:id="@+id/ibCogVideo"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:src="@mipmap/ic_launcher" />
    <ImageView
        android:id="@+id/ivCogPicture"
        android:layout_width="300dp"
        android:layout_height="300dp"
        android:layout_marginTop="100dp"
        android:src="@mipmap/ic_launcher" />

</LinearLayout>

 

5.PictureActivity.java页面：

package com.example.two;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.media.AudioManager;
import android.media.SoundPool;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.Toast;

import com.bumptech.glide.Glide;

import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import cn.bmob.v3.Bmob;
import cn.bmob.v3.BmobQuery;
import cn.bmob.v3.exception.BmobException;
import cn.bmob.v3.listener.DownloadFileListener;
import cn.bmob.v3.listener.FindListener;

public class PictureActivity extends AppCompatActivity implements View.OnClickListener {

    private ImageButton ibCogVideo;
    private ImageView ivCogPicture;
    SoundPool mSoundPool;     //一般用来播放短音频
    private ArrayList<Video> vpList=new ArrayList<Video>();
    private int index=0;
    private String videoUrl;
    HashMap<Integer,Integer> map=new HashMap<>();   //创建集合存放数据

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

        Bmob.initialize(this,"d5fae4243d06df5c1fbfa8a8e4f16e63");

        initViews();
        bindViews();
        initDatas();
    }

    /*初始化数据*/
    private void initDatas() {
        BmobQuery<Video> query=new BmobQuery<Video>();   //查询Bmob数据库中的信息
        query.findObjects(new FindListener<Video>() {
            @Override
            public void done(List<Video> list, BmobException e) {
                try {
                    for(int i=0;i<list.size();i++)
                        vpList.add(list.get(i));   //获取查询到的数据存入内存
                    Glide.with(PictureActivity.this).load(vpList.get(0).getPicture().getUrl()).into(ivCogPicture);   //显示图片
                    /*下载音频*/
                    vpList.get(0).getPictureVideo().download(new DownloadFileListener() {
                        @Override
                        public void done(String s, BmobException e) {
                            videoUrl=s;    //保存音频路径
                            map.put(1,mSoundPool.load(videoUrl,100));   //设置第一个音频
                        }

                        @Override
                        public void onProgress(Integer integer, long l) {
                        }
                    });
                }catch (Exception ex){
                    ex.printStackTrace();
                }
            }
        });
        mSoundPool=new SoundPool(3, AudioManager.STREAM_MUSIC,0);  //创建音频对象，参数为（可容纳音频个数，声音类型，音频品质默认为0）

    }

    /*绑定点击事件*/
    private void bindViews() {
        ibCogVideo.setOnClickListener(this);
        ivCogPicture.setOnClickListener(this);
    }

    /*初始化控件*/
    private void initViews() {
        ibCogVideo=findViewById(R.id.ibCogVideo);
        ivCogPicture=findViewById(R.id.ivCogPicture);
    }

    /*点击事件*/
    @Override
    public void onClick(View v) {
        mSoundPool.play(map.get(1),1,1,100,0,1);  //参数为（要播放的音频，左声道音量，右声道音量，音频优先级，循环次数，速率）
        switch (v.getId()){
            case R.id.ibCogVideo:
                break;
            case R.id.ivCogPicture:
                index=index>vpList.size()?0:index+1;
                Glide.with(PictureActivity.this).load(vpList.get(index).getPicture().getUrl()).into(ivCogPicture);
                break;
        }
    }
}