案例：

activity_main.xml

MainActivity.java

package com.example.administrator.cameravideo; import android.content.Intent; import android.net.Uri; import android.os.Environment; import android.provider.MediaStore; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import java.io.File; public class MainActivity extends AppCompatActivity {
       private static final int MEDIA_TYPE_IMAGE = 1;     private static final int MEDIA_TYPE_VIDEO = 2;     @Override     protected void onCreate(Bundle savedInstanceState) {
           super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);     }     //拍照     public void imageCapture(View view) {
           Intent intent = new Intent();         intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);         intent.putExtra(MediaStore.EXTRA_OUTPUT, getOutputMediaFileUri(MEDIA_TYPE_IMAGE));         startActivityForResult(intent, MEDIA_TYPE_IMAGE);     }     @Override     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
           super.onActivityResult(requestCode, resultCode, data);         switch (resultCode) {
               case RESULT_OK:                 if (MEDIA_TYPE_IMAGE == requestCode) {
                       //图片                     //  Uri uri= data.getData();                     System.out.println(file);                 } else if (MEDIA_TYPE_VIDEO == requestCode) {
                       System.out.println(file);                     System.out.println(data.getData());                 }                 break;         }     }     //录制视频     public void videoCapture(View view) {
   Intent intent=new Intent();         intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);         intent.putExtra(MediaStore.EXTRA_OUTPUT,getOutputMediaFileUri(MEDIA_TYPE_VIDEO));         //第二个参数为视频质量         intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY,1);         startActivityForResult(intent,MEDIA_TYPE_VIDEO);     }     File file = null;     private Uri getOutputMediaFileUri(int type) {
           file = getOutputMediaFile(type);         return Uri.fromFile(file);     }     private File getOutputMediaFile(int type) {
           File file = null;         String rootPath = null;         switch (type) {
               case MEDIA_TYPE_IMAGE:                 rootPath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).getPath();                 file = new File(rootPath + File.separator + System.currentTimeMillis() + ".jpg");                 break;             case MEDIA_TYPE_VIDEO:                 rootPath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES).getPath();                 file = new File(rootPath + File.separator + System.currentTimeMillis() + ".mp4");                 break;         }         return file;     } }

 

音频录制

activity_main2.xml

MainActivity.java

package com.example.administrator.cameravideo; import android.app.Activity; import android.media.MediaRecorder; import android.os.Bundle; import android.os.Environment; import android.view.View; import android.widget.Button; import java.io.File; import java.io.IOException; public class MainActivity2 extends Activity implements MediaRecorder.OnErrorListener {
       private MediaRecorder mr;     private boolean prepared = false;     private Button button_record;     private Button button_stop;     @Override     protected void onCreate(Bundle savedInstanceState) {
           super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main2);         button_record = (Button) findViewById(R.id.button_record);         button_stop = (Button) findViewById(R.id.button_stop);         mr = new MediaRecorder();         init();     }     private void init() {
           mr.reset();         mr.setAudioSource(MediaRecorder.AudioSource.MIC);         mr.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);         mr.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);         String path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC) + File.separator + System.currentTimeMillis() + ".mp3";         mr.setOutputFile(path);         try {
               mr.prepare();             prepared = true;         } catch (IOException e) {
               e.printStackTrace();         }         button_stop.setEnabled(false);     }     public void recordClick(View view) {
           if (prepared) {
               mr.start();             prepared = false;         }         button_stop.setEnabled(true);         button_record.setEnabled(false);     }     public void stopClick(View view) {
               mr.stop();         init();         button_stop.setEnabled(false);         button_record.setEnabled(true);     }     @Override     protected void onDestroy() {
           super.onDestroy();         if (mr != null) {
               mr.release();         }     }     @Override     public void onError(MediaRecorder mr, int what, int extra) {
           mr.reset();     } }

 

Vitamio框架

准备工作，下载Vitamio。在AS中添加依赖。必须加上以下权限和内容

在界面Avtivity设置布局前加上

Vitamio.isInitialized(getApplicationContext());

案例一：播放音频

activity_main.xml

MainActivity.java

package com.example.administrator.vitamio; import android.app.Activity; import android.os.Bundle; import android.os.Environment; import android.view.View; import java.io.IOException; import io.vov.vitamio.MediaPlayer; import io.vov.vitamio.Vitamio; public class MainActivity extends Activity implements MediaPlayer.OnPreparedListener {
       private MediaPlayer mediaplayer;     @Override     protected void onCreate(Bundle savedInstanceState) {
           super.onCreate(savedInstanceState);         //加载so类库（通常使用C。C++编写类库）    /*if (!LibsChecker.checkVitamioLibs(this))         {
               return ;         } */         Vitamio.isInitialized(getApplicationContext());         setContentView(R.layout.activity_main);         initMethodPlayer();     }     private void initMethodPlayer() {
           mediaplayer=new MediaPlayer(this);     }     public void play(View view)     {
           String path= Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC)+"/a.mp3";         try {
               mediaplayer.reset();             mediaplayer.setDataSource(path);             mediaplayer.setOnPreparedListener(this);             mediaplayer.prepareAsync();         } catch (IOException e) {
               e.printStackTrace();         }     }     public void pause(View view)     {
       mediaplayer.pause();     }     public void stop(View view)     {
           mediaplayer.stop();         mediaplayer.release();     }     @Override     public void onPrepared(MediaPlayer mp) {
          mp.start();     } }

案例二：VideoView播放视频

activity_main2.xml

MainActivity2.java

package com.example.administrator.vitamio; import android.os.Environment; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import io.vov.vitamio.Vitamio; import io.vov.vitamio.widget.MediaController; import io.vov.vitamio.widget.VideoView; public class MainActivity2 extends AppCompatActivity {
       private VideoView vv;     @Override     protected void onCreate(Bundle savedInstanceState) {
           super.onCreate(savedInstanceState);         Vitamio.isInitialized(getApplicationContext());         setContentView(R.layout.activity_main2);         vv= (VideoView) findViewById(R.id.surface_view);         MediaController mc=new MediaController(this);         vv.setMediaController(mc);         String path= Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES)+"/Nothing.ifox";         vv.setVideoPath(path);         vv.requestFocus();         vv.start();     } }