Android 简易音乐动态相册(多种动画)

﹏ヽ暗。殇╰゛Y 2022-07-16 20:14 33阅读 0赞

**需要完成效果：点击空白处，音乐与图片同时开始播放，音乐暂停时，图片停止播放。**

**布局：**

<?xml version="1.0" encoding="utf-8"?>
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context="com.example.administrator.jreduch11.PresentActivity">
        <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/show"
            android:scaleType="centerCrop"
            android:clickable="true"/>
    </RelativeLayout>

**Activity代码：**

package com.example.administrator.jreduch11;
    
    import android.content.Intent;
    import android.os.Bundle;
    import android.os.Handler;
    import android.os.Message;
    import android.support.v7.app.AppCompatActivity;
    import android.view.View;
    import android.widget.ImageView;
    
    import com.example.administrator.jreduch11.effects.BaseEffects;
    
    public class PresentActivity extends AppCompatActivity implements SecondService.StopImg{
        private ImageView show;
        private boolean run=true;
        private boolean click=false;
        private int[] imgs={R.mipmap.nannv,R.mipmap.feiji,R.mipmap.ruzi,
        R.mipmap.haidi,R.mipmap.meinan,R.mipmap.xingkong};
        private Handler handler=new Handler(){
            @Override
            public void handleMessage(Message msg) {
                super.handleMessage(msg);
                start(msg.arg1,2000,msg.what);
            }
        };
    
        public PresentActivity() {
        }
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_present);
            getSupportActionBar().hide();
    
            show= (ImageView) findViewById(R.id.show);
    
            show.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if(click){
                        return;
                    }
                    click=true;
                    Intent intent=new Intent(PresentActivity.this,SecondService.class);
                    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    startService(intent);
                    start(0, 5000, 0);
                    SecondService.setMusicStop(PresentActivity.this);
                    new Thread(new ImgNext()).start();
                }
            });
    
        }
        private void start(int which,int mDuration,int img) {
            show.setImageResource(imgs[img]);
            BaseEffects animator = types[which].getAnimator();
            if (mDuration != -1) {
                animator.setDuration(Math.abs(mDuration));
            }
            animator.start(show);
        }
    
    
        private Effectstype[] types={Effectstype.Fadein,Effectstype.Fall,Effectstype.Fliph,
                Effectstype.Flipv, Effectstype.Newspager,Effectstype.RotateBottom,
                Effectstype.RotateLeft,Effectstype.Shake, Effectstype.Sidefill,
                Effectstype.SlideBottom, Effectstype.Slideright,Effectstype.Slidetop,
                Effectstype.Slideleft, Effectstype.Slit
             };
    
        @Override
        public void stop() {
            show.setImageResource(R.mipmap.ic_launcher);
            run=false;
        }
        
        public class ImgNext implements Runnable{
            @Override
            public void run() {
                int i=-1;
                int which = -1;
                Message message;
                while (i<imgs.length&&run){
                    if(which == types.length-1){
                        which=0;
                    }
                    if(i==imgs.length-1){
                        i=0;
                    }
                    try {
                        Thread.sleep(7500);
                        message=new Message();
                        i++;
                        which++;
                        message.what=i;
                        message.arg1=which;
                        handler.sendMessage(message);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
                if (!run){
                    message = new Message();
                    message.what = 10;
                    message.arg1 = 0;
                    handler.sendMessage(message);
                }
            }
        }
    }

**Service代码：**

package com.example.administrator.jreduch11;
    
    import android.app.Service;
    import android.content.Context;
    import android.content.Intent;
    import android.media.MediaPlayer;
    import android.os.IBinder;
    
    public class SecondService extends Service {
    
        public SecondService() {
        }
        private MediaPlayer mediaPlayer;
        private static StopImg stopImg;
    
        @Override
        public void onCreate() {
            super.onCreate();
            mediaPlayer=new MediaPlayer();
            mediaPlayer=MediaPlayer.create(this,R.raw.xusong);
            mediaPlayer.start();
            mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                @Override
                public void onCompletion(MediaPlayer mp) {
                    stopImg.stop();
                }
            });
        }
    
        @Override
        public int onStartCommand(Intent intent, int flags, int startId) {
            if(!mediaPlayer.isPlaying()){
                mediaPlayer.start();
            }
            return START_REDELIVER_INTENT;
    
        }
    
        public interface StopImg{
            public void stop();
        }
        public static void setMusicStop(Context context){
            stopImg = (StopImg) context;
        }
    
        @Override
        public IBinder onBind(Intent intent) {
            throw new UnsupportedOperationException("Not yet implemented");
        }
    
        @Override
        public boolean onUnbind(Intent intent) {
            return super.onUnbind(intent);
        }
    
        @Override
        public void onDestroy() {
            super.onDestroy();
            if(mediaPlayer!=null){
                mediaPlayer.release();
                //释放资源
            }
        }
    }

**完成效果（静态）：**

**![Center][]**

**![Center 1][]**

[Center]: /images/20220717/f997955b08994ff3890c6b133b5ab222.png
[Center 1]: /images/20220717/f6f34b8903db44968bd561bc52a02294.png