长按然后就自动崩溃了，代码也对着视频看了几遍，问答区也经常来关注，就是解决不了我的问题，只能来求老师帮忙了！
package com.fy.recorder.view;
import java.io.File;
import java.io.IOException;
import java.util.UUID;
import android.media.MediaRecorder;
public class AudioManager
{
private MediaRecorder mMediaRecorder;
private String mDir;
private String mCurrentFilePath;
private static AudioManager mInstance;
private AudioManager(String dir)
{
mDir=dir;
}
public interface AudioStateListener
{
void wellPrepared();
}
public AudioStateListener mListener;
public boolean isPrepared;
public String getCurrentfilePath()
{
return mCurrentFilePath;
}
public void setOnAudioStateListener(AudioStateListener listener)
{
mListener=listener;
}
public static AudioManager getInstance(String dir)
{
if(mInstance==null)
{
synchronized(AudioManager.class)
{
if(mInstance==null)
mInstance=new AudioManager(dir);
}
}
return mInstance;
}
public void prepareAudio()
{
try{
isPrepared=false;
File dir=new File(mDir);
if(!dir.exists())
dir.mkdirs();
String fileName=generateFileName();
File file =new File(dir,fileName);
mCurrentFilePath=file.getAbsolutePath();
mMediaRecorder=new MediaRecorder();
//设置音频源
mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
//设置音频格式
mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.RAW_AMR);
//设置音频编码
mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
//设置输出文件
mMediaRecorder.setOutputFile(file.getAbsolutePath());
mMediaRecorder.prepare();
mMediaRecorder.start();
isPrepared=true;
if(mListener!=null)
{
mListener.wellPrepared();
}
}catch(IllegalStateException|IOException e)
{
e.printStackTrace();
}
}
private String generateFileName()
{
return UUID.randomUUID().toString()+".amr";
}
public int getVoiceLevel(int maxLevel)
{
if(isPrepared)
{
try {
// maxLevel*mMediaRecorder.getMaxAmplitude() 1-32767
return maxLevel*mMediaRecorder.getMaxAmplitude()/32768+1;
} catch (Exception e)
{
}
}
return 1;
}
public void release()
{
mMediaRecorder.stop();
mMediaRecorder.release();
mMediaRecorder=null;
}
public void cancel()
{
release();
if(mCurrentFilePath!=null)
{
File file=new File(mCurrentFilePath);
file.delete();
mCurrentFilePath=null;
}
}
}然后是Button的
package com.fy.recorder.view;
import com.fy.recorder.R;
import com.fy.recorder.view.AudioManager.AudioStateListener;
import android.content.Context;
import android.os.Environment;
import android.os.Handler;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
public class recorderButton extends Button implements AudioStateListener {
private static final int DISTANCE_Y_CANCEL=50;
private static final int STATE_NORMAL=1;
private static final int STATE_RECORDING=2;
private static final int STATE_WANT_TO_CANCEL=3;
private int mCurState=STATE_NORMAL;
private boolean isRecording=false;
private DialogManager mDialogManager;
private AudioManager mAudioManager;
private float mTime=0;
//
private boolean mReady;
public recorderButton(Context context) {
this(context,null);
}
public recorderButton(Context context, AttributeSet attrs) {
super(context, attrs);
mDialogManager=new DialogManager(getContext());
String dir=Environment.getExternalStorageState()+"/recorder_audios";
mAudioManager=AudioManager.getInstance(dir);
mAudioManager.setOnAudioStateListener(this);
setOnLongClickListener(new OnLongClickListener() {
@Override
public boolean onLongClick(View v)
{
mReady=true;
mAudioManager.prepareAudio();
return false;
}
});
}
//回调
public interface AudioFinishRecorderListener
{
void onFinish(float seconds,String filePath);
}
private AudioFinishRecorderListener mListener;
public void setAudioFinishRecorderListener(AudioFinishRecorderListener listener)
{
mListener=listener;
}
//获取音量大小
private Runnable mGetVOiceLevelRunnable=new Runnable()
{
@Override
public void run()
{
while(isRecording)
{
try {
Thread.sleep(100);
mTime+=0.1f;
mHandler.sendEmptyMessage(MSG_VOICE_CHANGED);
} catch (InterruptedException e)
{
e.printStackTrace();
}
}
}
};
private static final int MSG_AUDIO_PREPARED=0X111;
private static final int MSG_VOICE_CHANGED=0X112;
private static final int MSG_DIALOG_DIMSS=0X113;
private Handler mHandler=new Handler()
{
public void handleMessage(android.os.Message msg)
{
switch (msg.what) {
case MSG_AUDIO_PREPARED:
//
mDialogManager.showRecordingDialog();
isRecording=true;
new Thread(mGetVOiceLevelRunnable).start();
break;
case MSG_VOICE_CHANGED:
mDialogManager.updateVoiceLevel(mAudioManager.getVoiceLevel(7));
break;
case MSG_DIALOG_DIMSS:
mDialogManager.dimissDialog();
break;
}
}
};
@Override
public void wellPrepared()
{
mHandler.sendEmptyMessage(MSG_AUDIO_PREPARED);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
int action=event.getAction();
int x=(int)event.getX();
int y=(int)event.getY();
switch(action)
{
case MotionEvent.ACTION_DOWN:
changeState(STATE_RECORDING);
break;
case MotionEvent.ACTION_MOVE:
if(isRecording)
{
if(wangtToCancel(x,y))
{
changeState(STATE_WANT_TO_CANCEL);
}else{
changeState(STATE_RECORDING);
}
}
break;
case MotionEvent.ACTION_UP:
if(!mReady){
reset();
return super.onTouchEvent(event);
}
if(isRecording||mTime<0.6f)
{
mDialogManager.tooShort();
mAudioManager.cancel();
mHandler.sendEmptyMessageDelayed(MSG_DIALOG_DIMSS, 1300);
}else if(mCurState==STATE_RECORDING)//正常录制结束
{
mDialogManager.dimissDialog();
mAudioManager.release();
if(mListener!=null)
{
mListener.onFinish(mTime, mAudioManager.getCurrentfilePath());
}
}else if(mCurState==STATE_WANT_TO_CANCEL)
{
mDialogManager.dimissDialog();
mAudioManager.cancel();
}
reset();
break;
}
return super.onTouchEvent(event);
}
private void reset() {
isRecording=false;
mReady=false;
mTime=0;
changeState(STATE_NORMAL);
}
private boolean wangtToCancel(int x, int y) {
// TODO Auto-generated method stub
if(x<0||x>getWidth())
{
return true;
}
if(y<-DISTANCE_Y_CANCEL||y>getHeight()+DISTANCE_Y_CANCEL)
{
return true;
}
return false;
}
private void changeState(int state) {
// TODO Auto-generated method stub
if(mCurState!=state)
{
mCurState=state;
switch (state) {
case STATE_NORMAL:
setBackgroundResource(R.drawable.btn_recorder_normal);
setText(R.string.str_recorder_normal);
break;
case STATE_RECORDING:
setBackgroundResource(R.drawable.btn_recording);
setText(R.string.str_recorder_recording);
if(isRecording)
{
mDialogManager.recording();
}
break;
case STATE_WANT_TO_CANCEL:
setBackgroundResource(R.drawable.btn_recording);
setText(R.string.str_recorder_want_cancel);
mDialogManager.wantToCancel();
break;
default:
break;
}
}
}
}不知道怎么上传代码只能复制了，谢谢老师！！
