一、簡述
效果：
實現功能：
長按Button時改變Button顯示文字，彈出Dialog（動態更新音量），動態生成錄音文件，開始錄音；
監聽手指動作，規定區域。錄音狀態下手指劃出規定區域取消錄音，刪除生成的錄音文件；
監聽手指動作。當手指擡起時，判斷是否開始錄音，錄音時長是否過短，符合條件則提示錄音時長過短；正常結束時通過回調返回該次錄音的文件路徑和時長。
4.點擊錄音列表的item時，播放動畫，播放對應的音頻文件。
主要用到4個核心類：
自定義錄音按鈕（AudioRecordButton）；
彈框管理類（DialogManager）；
錄音管理類（AudioManager）。
1.AudioRecordButton狀態：
1.STATE_NORMAL:普通狀態
2.STATE_RECORDING:錄音中
3.STATE_CANCEL：取消錄音
2.DialogManager狀態:
1.RECORDING：錄音中
2.WANT_TO_CANCEL：取消錄音
3.TOO_SHORT：錄音時間太短
3.AudioManager：
1.prepare():準備狀態
2.cancel()：取消錄音
3.release():正常結束錄音
4.getVoiceLevel()：獲取音量
核心邏輯：
自定義Button，重寫onTouchEvent()方法。
偽代碼：
class AudioRecorderButton{
onTouchEvent(){
DOWN:
changeButtonState(STATE_RECORDING);
| DialogManager.showDialog(RECORDING)
觸發LongClick事件(AudioManager.prepare() --> end prepared --> | );
| getVoiceLevel();//開啟一個線程，更新Dialog上的音量等級
MOVE:
if(wantCancel(x,y)){
DialogManager.showDialog(WANT_TO_CANCEL);更新Dialog
changeButtonState(STATE_WANT_TO_CANCEL);更新Button狀態
}else{
DialogManager.showDialog(WANT_TO_CANCEL);
changeButtonState(STATE_RECORDING);
}
UP:
if(wantCancel == curState){//當前狀態是想取消狀態
AudioManager.cancel();
}
if(STATE_RECORDING = curState){
if(tooShort){//判斷錄制時長，如果錄制時間過短
DialogManager.showDialog(TOO_SHORT);
}
AudioManager.release();
callbackActivity(url,time);//(當前錄音文件路徑，時長)
}
}
}
二、MediaManager封裝
簡述：使用MediaPlayer播放錄制好的音頻文件，要註意MediaPlayer資源的釋放。
代碼：
import android.media.*;
import Java.io.IOException;
/**
* 播放管理類
*/
public class MediaManager {
private static MediaPlayer mMediaPlayer;
private static boolean isPause;
public static void playSound(String filePath, MediaPlayer.OnCompletionListener onCompletionListener) {
if (mMediaPlayer == null) {
mMediaPlayer = new MediaPlayer();
mMediaPlayer.setOnErrorListener(new MediaPlayer.OnErrorListener() {
@Override
public boolean onError(MediaPlayer mp, int what, int extra) {
mMediaPlayer.reset();
return false;
}
});
} else {
mMediaPlayer.reset();
}
try {
mMediaPlayer.setAudioStreamType(android.media.AudioManager.STREAM_MUSIC);
mMediaPlayer.setOnCompletionListener(onCompletionListener);
mMediaPlayer.setDataSource(filePath);
mMediaPlayer.prepare();
mMediaPlayer.start();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void pause(){
if(mMediaPlayer != null && mMediaPlayer.isPlaying()){
mMediaPlayer.pause();
isPause = true;
}
}
public static void resume(){
if(mMediaPlayer != null && isPause){
mMediaPlayer.start();
isPause = false;
}
}
public static void release(){
if(mMediaPlayer != null){
mMediaPlayer.release();
mMediaPlayer = null;
}
}
}
三、DialogManager封裝
封裝了6個方法：
1. showRecordingDialog()：用來設置Diaog布局，拿到控件的引用，顯示Dialog。
2. recording()：更改Dialog狀態為錄音中狀態。
3. wantToCancel()：更改Dialog狀態為想要取消狀態。
4. tooShort()：更改Dialog狀態為錄音時長過短狀態。
5. dismissDialog()：移除Dialog。
6. updateVoiceLevel()：用來更新音量圖片。
代碼：
import android.app.Dialog;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import com.tiddlerliu.wxrecorder.R;
/**
* Dialog管理類
*/
public class DialogManager {
private Dialog mDialog;
private ImageView mIcon;
private ImageView mVoice;
private TextView mLabel;
private Context mContext;
public DialogManager(Context context) {
mContext = context;
}
/**
* 顯示Dialog
*/
public void showRecordingDialog(){
//將布局應用於Dialog
mDialog = new Dialog(mContext, R.style.Theme_AudioDialog);
LayoutInflater inflater = LayoutInflater.from(mContext);
View view = inflater.inflate(R.layout.dialog_recorder,null);
mDialog.setContentView(view);
//成員控件賦值
mIcon = (ImageView) mDialog.findViewById(R.id.recorder_dialog_icon);
mVoice = (ImageView) mDialog.findViewById(R.id.recorder_dialog_voice);
mLabel = (TextView) mDialog.findViewById(R.id.recorder_dialog_label);
mDialog.show();
}
public void recording(){
if(mDialog != null && mDialog.isShowing()){
mIcon.setVisibility(View.VISIBLE);
mVoice.setVisibility(View.VISIBLE);
mLabel.setVisibility(View.VISIBLE);
mIcon.setImageResource(R.mipmap.recorder);
mLabel.setText("手指上滑，取消發送");
}
}
public void wantToCancel(){
if(mDialog != null && mDialog.isShowing()){
mIcon.setVisibility(View.VISIBLE);
mVoice.setVisibility(View.GONE);
mLabel.setVisibility(View.VISIBLE);
mIcon.setImageResource(R.mipmap.cancel);
mLabel.setText("松開手指，取消發送");
}
}
public void tooShort(){
if(mDialog != null && mDialog.isShowing()){
mIcon.setVisibility(View.VISIBLE);
mVoice.setVisibility(View.GONE);
mLabel.setVisibility(View.VISIBLE);
mIcon.setImageResource(R.mipmap.voice_to_short);
mLabel.setText("錄音時間過短");
}
}
public void dismissDialog(){
if(mDialog != null && mDialog.isShowing()){
mDialog.dismiss();
mDialog = null;
}
}
/**
* 通過level更新音量資源圖片
* @param level
*/
public void updateVoiceLevel(int level){
if(mDialog != null && mDialog.isShowing()){
int resId = mContext.getResources().getIdentifier("v"+level,"mipmap",mContext.getpackageName());
mVoice.setImageResource(resId);
}
}
}
四、AudioManager封裝
4.1 添加必要權限
<uses-permission android:name="android.permission.RECORD_AUDIO"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
4.2 代碼
import android.media.MediaRecorder;
import java.io.File;
import java.io.IOException;
import java.util.UUID;
/**
* 錄音管理類
*/
public class AudioManager {
private String mDir;//文件夾名稱
private MediaRecorder mMediaRecorder;
private String mCurrentFilePath;//文件儲存路徑
private static AudioManager mInstance;
//表明MediaRecorder是否進入prepare狀態（狀態為true才能調用stop和release方法）
private boolean isPrepared;
public AudioManager(String dir) {
mDir = dir;
}
public String getCurrentFilePath() {
return mCurrentFilePath;
}
/**
* 準備完畢接口
*/
public interface AudioStateListener{
void wellPrepared();
}
public AudioStateListener mListener;
public void setOnAudioStateListener(AudioStateListener listener){
mListener = listener;
}
/**
* 單例
* @return AudioManager
*/
public static AudioManager getInstance(String dir){
if (mInstance == null){
synchronized (AudioManager.class){
if(mInstance == null){
mInstance = new AudioManager(dir);
}
}
}
return mInstance;
}
/**
* 準備
*/
public void prepareAudio() {
try {
isPrepared = false;
File dir = new File(mDir);//創建文件夾
if (!dir.exists()) {
dir.mkdirs();
}
String fileName = generateFileName();//隨機生成文件名
File file = new File(dir, fileName);//創建文件
mCurrentFilePath = file.getAbsolutePath();
mMediaRecorder = new MediaRecorder();
mMediaRecorder.setOutputFile(file.getAbsolutePath());//設置輸出文件
mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);//設置麥克風為音頻源
mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.AMR_NB);//設置音頻格式
mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//設置音頻編碼
mMediaRecorder.prepare();
mMediaRecorder.start();
//準備結束
isPrepared = true;
if (mListener != null){
mListener.wellPrepared();
}
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 隨機生成文件的名稱
* @return
*/
private String generateFileName() {
return UUID.randomUUID().toString()+".amr";
}
/**
* 獲取音量等級
*/
public int getVoiceLevel(int maxLevel) {
if (isPrepared) {
try {
//mMediaRecorder.getMaxAmplitude() 範圍:1-32767
return maxLevel * mMediaRecorder.getMaxAmplitude() / 32768 + 1;//最大值 * [0,1）+ 1
} catch (Exception e) {
}
}
return 1;
}
/**
* 重置
*/
public void release(){
if(mMediaRecorder != null){
mMediaRecorder.stop();
mMediaRecorder.release();
mMediaRecorder = null;
}
}
/**
* 取消
*/
public void cancel(){
release();
//刪除產生的文件
if(mCurrentFilePath != null){
File file = new File(mCurrentFilePath);
file.delete();
mCurrentFilePath = null;
}
}
}
五、AudioRecordButton封裝
import android.annotation.SuppressLint;
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;
import com.tiddlerliu.wxrecorder.R;
/**
* 自定義Button
*/
@SuppressLint("AppCompatCustomView")
public class AudioRecordButton extends Button implements AudioManager.AudioStateListener{
private static final int STATE_NORMAL = 1;//默認狀態
private static final int STATE_RECORDING = 2;//錄音狀態
private static final int STATE_WANT_CANCEL = 3;//想取消狀態
private static final int DISTANCE_Y_CANCEL = 50;//定義上滑取消距離
private int mCurState = STATE_NORMAL;//記錄當前狀態
private boolean isRecording = false;//是否在錄音狀態
private DialogManager mDialogManager;
private AudioManager mAudioManager;
private float mTime;//記錄錄音時長
private boolean mReady;//是否觸發OnLongClick事件
private boolean isComplete = true;//是否已經完成
public AudioRecordButton(Context context) {
this(context,null);
}
public AudioRecordButton(Context context, AttributeSet attrs) {
super(context, attrs);
mDialogManager = new DialogManager(getContext());
String dir = Environment.getExternalStorageDirectory()+"/TiddlerLiu/recorder/audios";//最好判斷SD卡是否存在可讀
mAudioManager = AudioManager.getInstance(dir);
mAudioManager.setOnAudioStateListener(this);
setOnLongClickListener(new OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
mReady = true;
mAudioManager.prepareAudio();
return false;
}
});
}
/**
* 錄音完成後的回調
*/
public interface AudioFinishRecorderListener {
void onFinish(float seconds,String filePath);
}
private AudioFinishRecorderListener mAudioFinishRecorderListener;
public void setAudioFinishRecorderListener(AudioFinishRecorderListener listener){
mAudioFinishRecorderListener = listener;
}
private static final int MSG_AUDIO_PREPARED = 0x110;
private static final int MSG_VOICE_CHANGED = 0x111;
private static final int MSG_DIALOG_DISMISS = 0x112;
private static final int MSG_AUDIO_COMPLETE = 0x113;//達到最大時長，自動完成
/**
* 獲取音量大小
*/
private Runnable mGetVoiceLevelRunnable = new Runnable() {
@Override
public void run() {
while (isRecording){
try {
Thread.sleep(100);
mTime += 0.1f;
if(mTime >= 60f){//60s自動觸發完成錄制
mHandler.sendEmptyMessage(MSG_AUDIO_COMPLETE);
}
mHandler.sendEmptyMessage(MSG_VOICE_CHANGED);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
};
private Handler mHandler = new Handler(){
@Override
public void handleMessage(Message msg) {
switch (msg.what){
case MSG_AUDIO_PREPARED:
//顯示應該在audio end prepared以後
mDialogManager.showRecordingDialog();
isRecording = true;
isComplete = false;
new Thread(mGetVoiceLevelRunnable).start();
break;
case MSG_VOICE_CHANGED:
mDialogManager.updateVoiceLevel(mAudioManager.getVoiceLevel(7));
break;
case MSG_DIALOG_DISMISS:
mDialogManager.dismissDialog();
break;
case MSG_AUDIO_COMPLETE:
complete();
reset();
break;
default:
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){
//根據(x,y)坐標，判斷是否想要取消
if (wantToCancel(x,y)){
changeState(STATE_WANT_CANCEL);
}else{
changeState(STATE_RECORDING);
}
}
break;
case MotionEvent.ACTION_UP:
if(!isComplete){//沒有執行超時自動完成邏輯
if (!mReady) {//還未觸發OnLongClick事件
reset();
return super.onTouchEvent(event);
}
if (!isRecording || mTime < 0.6f) {//還未開始錄音 或者 錄制時長過短
mDialogManager.tooShort();
mAudioManager.cancel();
mHandler.sendEmptyMessageDelayed(MSG_DIALOG_DISMISS, 1300);//1.3秒後關閉對話框
} else if (mCurState == STATE_RECORDING) {//正常錄制結束
complete();
} else if (mCurState == STATE_WANT_CANCEL) {//想要取消狀態
mDialogManager.dismissDialog();
mAudioManager.cancel();
}
reset();
}
break;
}
return super.onTouchEvent(event);
}
/**
* 正常錄制結束
*/
private void complete() {
mDialogManager.dismissDialog();
mAudioManager.release();
if(mAudioFinishRecorderListener != null && !isComplete){
mAudioFinishRecorderListener.onFinish(mTime,mAudioManager.getCurrentFilePath());
}
}
/**
* 恢復狀態和標誌位
*/
private void reset() {
isRecording = false;
mReady = false;
mTime = 0;
isComplete = true;
changeState(STATE_NORMAL);
}
/**
* 根據(x,y)坐標，判斷是否想要取消
* @param x
* @param y
* @return
*/
private boolean wantToCancel(int x, int y) {
if(x < 0 || x > getWidth()){//手指移出button範圍
return true;
}
if(y < - DISTANCE_Y_CANCEL || y > getHeight() + DISTANCE_Y_CANCEL){//手指移出Y軸設定範圍
return true;
}
return false;
}
/**
* 改變狀態
* @param state
*/
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_recorder_recording);
setText(R.string.str_recorder_recording);
if(isRecording){
mDialogManager.recording();
}
break;
case STATE_WANT_CANCEL:
setBackgroundResource(R.drawable.btn_recorder_recording);
setText(R.string.str_recorder_want_cancel);
mDialogManager.wantToCancel();
break;
default:
break;
}
}
}
}
六、 主界面實現
6.1 adapter
import android.content.Context;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.util.DisplayMetrics;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import com.tiddlerliu.wxrecorder.R;
import com.tiddlerliu.wxrecorder.model.Recorder;
import java.util.List;
public class RecorderAdapter extends ArrayAdapter<Recorder>{
private int mMinItemWidth;
private int mMaxItemWidth;
private LayoutInflater mInflater;
public RecorderAdapter(@NonNull Context context, List<Recorder> datas) {
super(context, -1 ,datas);
mInflater = LayoutInflater.from(context);
//獲取屏幕參數
WindowManager wm = (WindowManager) context.getsystemService(Context.WINDOW_SERVICE);
DisplayMetrics outMetrics = new DisplayMetrics();
wm.getDefaultDisplay().getMetrics(outMetrics);
//設置最小寬度和最大寬度
mMinItemWidth = (int) (outMetrics.widthPixels * 0.16f);
mMaxItemWidth = (int) (outMetrics.widthPixels * 0.64f);
}
@NonNull
@Override
public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
ViewHolder holder = null;
if(convertView == null){
convertView = mInflater.inflate(R.layout.item_recorder,parent,false);
holder = new ViewHolder();
holder.seconds = (TextView) convertView.findViewById(R.id.item_recorder_time);
holder.length = convertView.findViewById(R.id.item_recorder_length);
convertView.setTag(holder);
}else {
holder = (ViewHolder) convertView.getTag();
}
//設置時長
holder.seconds.setText(Math.round(getItem(position).getTime())+ "\"");
//根據時長按比例設置時長
ViewGroup.LayoutParams lp = holder.length.getLayoutParams();
lp.width = (int) (mMinItemWidth + (mMaxItemWidth/60f * getItem(position).getTime()));
return convertView;
}
private class ViewHolder{
TextView seconds;
View length;
}
}
6.2 activity
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 com.tiddlerliu.wxrecorder.CustomView.AudioRecordButton;
import com.tiddlerliu.wxrecorder.CustomView.MediaManager;
import com.tiddlerliu.wxrecorder.adapter.RecorderAdapter;
import com.tiddlerliu.wxrecorder.model.Recorder;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private ListView mListView;
private AudioRecordButton mAudioRecordButton;
private ArrayAdapter<Recorder> mAdapter ;
private List<Recorder> mDatas = new ArrayList<>();
private View mAnimView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mListView = (ListView) findViewById(R.id.recorder_list);
mAudioRecordButton = (AudioRecordButton) findViewById(R.id.recorder_button);
mAudioRecordButton.setAudioFinishRecorderListener(new AudioRecordButton.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<"color: #ff0000">總結
以上所述是小編給大家介紹的Android仿微信語音消息的錄制和播放功能，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復大家的。在此也非常感謝大家對電腦玩物網站的支持！
Tags:
錄音 DialogManager 狀態 時長 手指 取消
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