仿微信语音聊天

分析思路

录音的三种状态

AudioRecorderButton

State : STATE_NORMAL , STATE_RECORDING, STATE_WANT_TO_CANCEL

录音对话框状态

Style :RECORDING ,WANT_TO_CANCEL,TOO_SHORT

AudioManager

prepare();

cancel();

release();

getVoiceLevel();

现在开始写代码:吼吼,需要完整代码的可以去http://download.csdn.net/detail/qq_29502523/9476980下载

需要的依赖 compile ‘com.android.support:appcompat-v7:23.2.1’

MainActivity.java

package com.example.myrecorder;

import android.graphics.drawable.AnimationDrawable;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

private ListView mListView;
private ArrayAdapter<Recorder> mAdapter;
private List<Recorder> mDatas = new ArrayList<>();
private AudioRecorderButton mAudioRecorderButton;
private View animView;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findView();
initView();
}

private void findView() {
mListView = (ListView) findViewById(R.id.id_listview);
mAudioRecorderButton = (AudioRecorderButton) findViewById(R.id.id_recorder_button);

}

private void initView() {

mAudioRecorderButton.setAudioFinishRecorderListener(new AudioRecorderButton.AudioFinishRecorderListener() {
@Override
public void onFinish(float seconds, String filePath) {
Recorder recorder = new Recorder(seconds, filePath);
mDatas.add(recorder);
mAdapter.notifyDataSetChanged();
mListView.setSelection(mDatas.size() - 1);
}
});

mAdapter = new RecorderAdapter(this, mDatas);
mListView.setAdapter(mAdapter);
mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if (animView != null) {
animView.setBackgroundResource(R.drawable.adj);
animView = null;
}
//播放动画
animView = view.findViewById(R.id.id_recorder_anim);
animView.setBackgroundResource(R.drawable.play_anim);
AnimationDrawable anim = (AnimationDrawable) animView.getBackground();
anim.start();
//播放音频
MediaManager.playSound(mDatas.get(position).filePath, new MediaPlayer.OnCompletionListener() {

@Override
public void onCompletion(MediaPlayer mp) {
animView.setBackgroundResource(R.drawable.adj);
}
});
}
});
}

@Override
protected void onPause() {
super.onPause();
MediaManager.pause();
}

@Override
protected void onResume() {
super.onResume();
MediaManager.resume();
}

@Override
protected void onDestroy() {
super.onDestroy();
MediaManager.release();
}
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">

<ListView
android:id="@+id/id_listview"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="#ebebeb"
android:divider="@null"
android:dividerHeight="10dp" />

<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">

<com.example.myrecorder.AudioRecorderButton
android:id="@+id/id_recorder_button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="7dp"
android:layout_marginLeft="50dp"
android:layout_marginRight="50dp"
android:layout_marginTop="6dp"
android:background="@drawable/btn_recorder_normal"
android:gravity="center"
android:minHeight="0dp"
android:padding="16dp"
android:text="@string/str_recorder_normal"
android:textColor="#727272" />

<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#ccc" />
</FrameLayout>
</LinearLayout>

AudioManager

package com.example.myrecorder;

import android.media.MediaRecorder;

import java.io.File;
import java.io.IOException;
import java.util.UUID;

/**
* Created by Administrator on 2016/2/28.
*/
public class AudioManager {
private MediaRecorder mMediaRecorder;
private String mDir;
private String mCurrentFilePath;
private static AudioManager mInstance;
private boolean isPrepared;

private AudioManager(String dir) {
this.mDir = dir;
}

/**
* 回调准备完毕
*/

public interface AudioStateListener {
void wellPrepared();
}

public AudioStateListener mListener;

public void setOnAudioStateListener(AudioStateListener listener) {

this.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 = genetateFileName();
File file = new File(dir, fileName);

mCurrentFilePath = file.getAbsolutePath();
mMediaRecorder = new MediaRecorder();
//设置输出文件
mMediaRecorder.setOutputFile(file.getAbsolutePath());
//设置MediaRecorder的音频源为麦克风
mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
//设置音频的格式
mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.AMR_NB);
//设置音频的编码为amr
mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

mMediaRecorder.prepare();
mMediaRecorder.start();
//准备结束
isPrepared = true;

if (mListener != null)
mListener.wellPrepared();
} catch (IOException e) {
e.printStackTrace();
}
}

/**
* 随机生成文件的名称
*
* @return
*/
private String genetateFileName() {
return UUID.randomUUID().toString() + ".amr";
}

/**
* 获取声音大小
*
* @param maxLevel
* @return
*/

public int getVoiceLevel(int maxLevel) {
if (isPrepared) {
//mMediaRecorder.getMaxAmplitude() 1-32767
try {
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;
}
}

public String getCurrentFilePath() {
return mCurrentFilePath;
}

}

package com.example.myrecorder;

import android.content.Context;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;

public class AudioRecorderButton extends Button implements AudioManager.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 float mTime;
//是否触发longclik
private boolean mReady;

private int mCurState = STATE_NORMAL;
//已经开始录音
private boolean isRecording = false;

private DialogManager mDialogManager;

private AudioManager mAudioManager;

public AudioRecorderButton(Context context) {
this(context, null);
}

public AudioRecorderButton(Context context, AttributeSet attrs) {

super(context, attrs);
mDialogManager = new DialogManager(getContext());
String dir = Environment.getExternalStorageDirectory() + "/recorder_audios";
mAudioManager = AudioManager.getInstance(dir);
mAudioManager.setOnAudioStateListener(this);

setOnLongClickListener(new OnLongClickListener() {

@Override
public boolean onLongClick(View v) {
mReady = true;
mAudioManager.prepareAudio();
return false;
}
});
}

private static final int MSG_AUDIO_PREPARED = 0X110;
private static final int MSG_VOICE_CHANGED = 0X111;
private static final int MSG_DIALOG_DIMISS = 0X112;

private Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_AUDIO_PREPARED:
//真正显示应该在audio end prepared以后
mDialogManager.showRecordingDialog();
isRecording = true;
new Thread(mGetVoiceLevelRunnable).start();
break;
case MSG_VOICE_CHANGED:

mDialogManager.updateVoiceLevel(mAudioManager.getVoiceLevel(7));
break;
case MSG_DIALOG_DIMISS:
mDialogManager.dismissDialog();
break;
default:
break;

}
}
};

/**
* 录音完成后的回调
*/

public interface AudioFinishRecorderListener {
void onFinish(float seconds, String filePath);
}

private AudioFinishRecorderListener mListener;

public void setAudioFinishRecorderListener(AudioFinishRecorderListener listener) {
mListener = listener;
}

@Override
public void wellPrepared() {

mHandler.sendEmptyMessage(MSG_AUDIO_PREPARED);
}

/**
* 获取音量大小的Runnable
*/
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();
}

}
}
};

@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:
//TODO
isRecording = true;
changeState(STATE_RECORDING);
break;
case MotionEvent.ACTION_MOVE:
if (isRecording) {
//根据x,y的坐标,判断是否想要取消
if (wantToCancel(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_DIMISS, 1300);
} else if (mCurState == STATE_RECORDING) //正常录制结束
{
//release
mDialogManager.dismissDialog();
mAudioManager.release();
if (mListener != null) {
mListener.onFinish(mTime, mAudioManager.getCurrentFilePath());
}
//callbackToAct

} else if (mCurState == STATE_WANT_TO_CANCEL) {
mDialogManager.dismissDialog();
mAudioManager.cancel();
//cancel
}
reset();
break;

}
return super.onTouchEvent(event);
}

/**
* 恢复状态及标志位
*/
private void reset() {

mReady = false;
isRecording = false;
mTime = 0;
changeState(STATE_NORMAL);
}

private boolean wantToCancel(int x, int y) {
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) {
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;
}
}

}

}

package com.example.myrecorder;

import android.app.Dialog;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

/**
* Created by R on 2016/2/28.
*/
public class DialogManager {
private Dialog mDialog;
private ImageView mIcon;
private ImageView mVoice;
private TextView mLable;
private Context context;

public DialogManager(Context context) {
this.context = context;
}

public void showRecordingDialog() {
mDialog = new Dialog(context, R.style.Theme_AudioDialog);
LayoutInflater inflater = LayoutInflater.from(context);
View view = inflater.inflate(R.layout.dialog_recorder, null);
mDialog.setContentView(view);

mIcon = (ImageView) mDialog.findViewById(R.id.id_recorder_dialog_icon);
mVoice = (ImageView) mDialog.findViewById(R.id.id_recorder_dialog_voice);
mLable = (TextView) mDialog.findViewById(R.id.id_recorder_dialog_label);
mDialog.show();
}

public void recording() {
if (mDialog != null && mDialog.isShowing()) {
mIcon.setVisibility(View.VISIBLE);
mVoice.setVisibility(View.VISIBLE);
mLable.setVisibility(View.VISIBLE);

mIcon.setImageResource(R.drawable.recorder);
mLable.setText("手指上滑,取消发送");
}
}

public void wantToCancel() {

if (mDialog != null && mDialog.isShowing()) {
mIcon.setVisibility(View.VISIBLE);
mVoice.setVisibility(View.GONE);
mLable.setVisibility(View.VISIBLE);

mIcon.setImageResource(R.drawable.cancel);
mLable.setText("松开手指,取消发送");
}
}

public void tooShort() {
if (mDialog != null && mDialog.isShowing()) {
mIcon.setVisibility(View.VISIBLE);
mVoice.setVisibility(View.GONE);
mLable.setVisibility(View.VISIBLE);

mIcon.setImageResource(R.drawable.voice_to_short);
mLable.setText("录音时间过短");
}

}

public void dismissDialog() {
if (mDialog != null && mDialog.isShowing()) {
mDialog.dismiss();
mDialog = null;
}
}

/**
* 通过level去更新voice上的图片
*
* @param level 1-7
*/
public void updateVoiceLevel(int level) {
if (mDialog != null && mDialog.isShowing()) {

int resId = context.getResources().getIdentifier("v" + level,
"drawable", context.getPackageName());
mVoice.setImageResource(resId);
}
}
}