录像实现原理特别简单，先在配置文件中声明一下权限，这个就不说了，然后直接使用Intent跳转就行。
Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE); intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 0); startActivityForResult(intent, 10);
下面是录音的代码，直接上全部代码。
<?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:id="@+id/activity_voice" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/voice" tools:context="bhne.com.wlprojectapplication.ui.VoiceActivity"> <LinearLayout android:id="@+id/linearLayout1" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <ImageView android:id="@+id/imageview_voice" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="80dp" android:src="@drawable/timg_voice" /> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_alignParentStart="true" android:layout_marginTop="20dp"> <Button android:id="@+id/start" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="50dp" android:background="@drawable/shape" android:text="开始录音" /> <Button android:id="@+id/stop" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentEnd="true" android:layout_alignParentTop="true" android:layout_marginEnd="48dp" android:layout_marginRight="200dp" android:background="@drawable/shape" android:text="停止录音" /> </RelativeLayout> </LinearLayout> </RelativeLayout>
上面是布局文件，下面是代码。
package bhne.com.wlprojectapplication.ui; import android.app.Activity; import android.content.Intent; import android.media.MediaRecorder; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.Toast; import java.io.File; import bhne.com.wlprojectapplication.Common.DBUtil; import bhne.com.wlprojectapplication.Common.GreenDaoContext; import bhne.com.wlprojectapplication.Common.RecordPlayer; import bhne.com.wlprojectapplication.R; import bhne.com.wlprojectapplication.db.equDao; import bhne.com.wlprojectapplication.db.pictureDao; import bhne.com.wlprojectapplication.db.projectDao; import bhne.com.wlprojectapplication.entity.equ; import bhne.com.wlprojectapplication.entity.picture; import bhne.com.wlprojectapplication.entity.project; public class VoiceActivity extends Activity implements View.OnClickListener { private Button start,stop,play,pause_play,stop_play; private MediaRecorder mediaRecorder; private File recordFile; private RecordPlayer player; private projectDao ProjectDao; private equDao EquDao; private String Equ_id; private String projectpath; private String pathImage; private pictureDao PictureDao; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_voice); Bundle bundle = this.getIntent().getExtras(); /*获取Bundle中的数据，注意类型和key*/ Equ_id = bundle.getString("equid"); EquDao= DBUtil.getDaoSession(VoiceActivity.this).getEquDao(); ProjectDao= DBUtil.getDaoSession(VoiceActivity.this).getProjectDao(); PictureDao= DBUtil.getDaoSession(VoiceActivity.this).getPictureDao(); equ t1=EquDao.queryBuilder().where(equDao.Properties.Id.eq(Equ_id)).list().get(0); project t2=ProjectDao.queryBuilder().where(projectDao.Properties.Id.eq(t1.gcid)).list().get(0); projectpath=t2.getName(); GreenDaoContext ct=new GreenDaoContext(); String t=java.util.UUID.randomUUID().toString(); recordFile = new File(ct.getSDPath()+"/bhne/export/"+projectpath+"/", t+".wav"); pathImage=ct.getSDPath()+"/bhne/export/"+projectpath+"/"+t+".wav"; init(); Listener(); } private void init(){ start=(Button) findViewById(R.id.start); stop=(Button) findViewById(R.id.stop); // play=(Button) findViewById(R.id.paly); // pause_play=(Button) findViewById(R.id.pause_paly); // stop_play=(Button) findViewById(R.id.stop_paly); } private void Listener(){ start.setOnClickListener(this); stop.setOnClickListener(this); // play.setOnClickListener(this); // pause_play.setOnClickListener(this); // stop_play.setOnClickListener(this); } @Override public void onClick(View v) { player=new RecordPlayer(VoiceActivity.this); int Id=v.getId(); switch (Id) { case R.id.start: startRecording(); break; case R.id.stop: stopRecording(); break; // case R.id.paly: // playRecording(); // break; // case R.id.pause_paly: // pauseplayer(); // break; // case R.id.stop_paly: // stopplayer(); // break; } } private void startRecording() { mediaRecorder = new MediaRecorder(); // 判断，若当前文件已存在，则删除 if (recordFile.exists()) { recordFile.delete(); } mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC); mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT); mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT); mediaRecorder.setOutputFile(recordFile.getAbsolutePath()); try { Toast.makeText(this,"正在录音",Toast.LENGTH_SHORT).show(); // 准备好开始录音 mediaRecorder.prepare(); mediaRecorder.start(); start.setEnabled(false); stop.setEnabled(true); } catch (Exception e) { e.printStackTrace(); } } private void stopRecording() { stop.setEnabled(false); start.setEnabled(true); picture info=new picture(); // info.setId(java.util.UUID.randomUUID().toString()); info.setEquid(Long.valueOf(Equ_id)); info.setPicturePath(pathImage); // info.setID(java.util.UUID.randomUUID().toString()); //加载默认的项目 final long len = PictureDao.insert(info); if(len>0){ Toast.makeText(getApplicationContext(), "新增语音成功", Toast.LENGTH_SHORT).show(); Toast.makeText(this,recordFile.toString(),Toast.LENGTH_LONG).show(); }else{ Toast.makeText(getApplicationContext(), "新增语音失败", Toast.LENGTH_SHORT).show(); } if (recordFile != null) { mediaRecorder.stop(); mediaRecorder.release(); } Intent intent=new Intent(VoiceActivity.this,PictureActivity.class); setResult(70,intent); finish(); } }
就这样。
