完整代码下载地址:
效果图:
分析:
1.自定义Button中要复写onTouchEvent的DOWN,MOVE,UP三种状态,对正常按下,想要取消发送,抬起三种动作进行侦听处理。
2.Dialog共有三种状态,除上图所示的两种外,还有一个录音时间过短的提示。其中录音状态中的音量可以变化。
3.显示录音的ListView的item中有一个录音时长(TextView),一个播放动画(View)和一个头像(ImageView)。
4.录音类里有两个成员:录音长度,录音路径。
下面贴一下代码:
自定义Button
package com.zms.wechatrecorder.view;
import com.zms.wechatrecorder.MyAudioManager;
import com.zms.wechatrecorder.MyAudioManager.AudioStateChangeListener;
import com.zms.wechatrecorder.R;
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 AudioRecordButton extends Button {
private static final int STATE_NORMAL = 1;
private static final int STATE_RECORDING = 2;
private static final int STATE_WANT_CANCEL = 3;
private static final int DISTANCE_CANCEL_Y = 50;
private int currentState = STATE_NORMAL;
private boolean isRecording = false;
private AudioRecordDialog dialogManager;
private MyAudioManager audioManager;
private float mTime;
// 是否触发LongClick
private boolean isReady = false;
public AudioRecordButton(Context context) {
this(context, null);
}
public AudioRecordButton(Context context, AttributeSet attrs) {
super(context, attrs);
dialogManager = new AudioRecordDialog(getContext());
String dir = Environment.getExternalStorageDirectory()
+ "/zms_chat_audios";
audioManager = MyAudioManager.getInstance(dir);
audioManager
.setOnAudioStateChangeListener(new MyOnAudioStateChangeListener());
setOnLongClickListener(new OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
isReady = true;
audioManager.prepareAudio();
return false;
}
});
}
class MyOnAudioStateChangeListener implements AudioStateChangeListener {
@Override
public void wellPrepared() {
mHanlder.sendEmptyMessage(MSG_AUDIO_PREPARED);
}
}
/**
* 录音完成后的回调
*
*/
public interface AudioRecordFinishListener {
void onFinish(float second, String filePath);
}
private AudioRecordFinishListener audioRecordFinishListener;
public void setAudioRecordFinishListener(AudioRecordFinishListener listener) {
audioRecordFinishListener = listener;
}
private Runnable getVolumeRunnable = new Runnable() {
@Override
public void run() {
while (isRecording) {
try {
Thread.sleep(100);
mTime += 0.1f;
mHanlder.sendEmptyMessage(MSG_VOLUME_CHAMGED);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
};
private static final int MSG_AUDIO_PREPARED = 0x110;
private static final int MSG_VOLUME_CHAMGED = 0x111;
private static final int MSG_DIALOG_DISMISS = 0x112;
private Handler mHanlder = new Handler() {
public void handleMessage(android.os.Message msg) {
switch (msg.what) {
case MSG_AUDIO_PREPARED:
dialogManager.showDialog();
isRecording = true;
// 音量
new Thread(getVolumeRunnable).start();
break;
case MSG_VOLUME_CHAMGED:
dialogManager.updateVolumeLevel(audioManager.getVoiceLevel(7));
break;
case MSG_DIALOG_DISMISS:
dialogManager.dismissDialog();
break;
default:
break;
}
};
};
@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:
// 已经开始录音
if (isRecording) {
// 根据X,Y的坐标判断是否想要取消
if (wantCancel(x, y)) {
changeState(STATE_WANT_CANCEL);
dialogManager.stateWantCancel();
} else {
changeState(STATE_RECORDING);
dialogManager.stateRecording();
}
}
break;
case MotionEvent.ACTION_UP:
// 没有触发longClick
if (!isReady) {
resetState();
return super.onTouchEvent(event);
}
// prepare未完成就up,录音时间过短
if (!isRecording || mTime < 0.6f) {
dialogManager.stateLengthShort();
audioManager.cancel();
mHanlder.sendEmptyMessageDelayed(MSG_DIALOG_DISMISS, 1300);
} else if (currentState == STATE_RECORDING) { // 正常录制结束
dialogManager.dismissDialog();
audioManager.release();
// callbackToActivity
if (audioRecordFinishListener != null) {
audioRecordFinishListener.onFinish(mTime,
audioManager.getCurrentPath());
}
} else if (currentState == STATE_WANT_CANCEL) {
dialogManager.dismissDialog();
audioManager.cancel();
}
resetState();
break;
default:
break;
}
return super.onTouchEvent(event);
}
/**
* 恢复标志位
*/
private void resetState() {
isRecording = false;
isReady = false;
changeState(STATE_NORMAL);
mTime = 0;
}
private boolean wantCancel(int x, int y) {
if (x < 0 || x > getWidth()) {
return true;
}
// 零点在左下角?
if (y < -DISTANCE_CANCEL_Y || y > getHeight() + DISTANCE_CANCEL_Y) {
return true;
}
return false;
}
private void changeState(int state) {
if (currentState != state) {
currentState = state;
switch (state) {
case STATE_NORMAL:
setBackgroundResource(R.drawable.btn_recorder_normal);
setText(R.string.btn_recorder_normal);
break;
case STATE_RECORDING:
setBackgroundResource(R.drawable.btn_recorder_normal);
setText(R.string.btn_recorder_recording);
if (isRecording) {
dialogManager.stateRecording();
}
break;
case STATE_WANT_CANCEL:
setBackgroundResource(R.drawable.btn_recorder_normal);
setText(R.string.btn_recorder_want_cancel);
dialogManager.stateWantCancel();
break;
default:
break;
}
}
}
}
自定义Dialog
package com.zms.wechatrecorder.view;
import com.zms.wechatrecorder.R;
import android.app.Dialog;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
public class AudioRecordDialog {
private Dialog dialog;
private ImageView imageRecord, imageVolume;
private TextView textHint;
private Context context;
public AudioRecordDialog(Context context) {
this.context = context;
}
public void showDialog() {
dialog = new Dialog(context, R.style.Theme_RecorderDialog);
LayoutInflater inflater = LayoutInflater.from(context);
View view = inflater.inflate(R.layout.dialog, null);
dialog.setContentView(view);
imageRecord = (ImageView) dialog.findViewById(R.id.imageRecord);
imageVolume = (ImageView) dialog.findViewById(R.id.imageVolume);
textHint = (TextView) dialog.findViewById(R.id.textHint);
dialog.show();
}
public void stateRecording() {
if (dialog != null && dialog.isShowing()) {
imageRecord.setVisibility(View.VISIBLE);
imageVolume.setVisibility(View.VISIBLE);
textHint.setVisibility(View.VISIBLE);
imageRecord.setImageResource(R.drawable.icon_dialog_recording);
textHint.setText("手指上滑,取消发送");
}
}
public void stateWantCancel() {
if (dialog != null && dialog.isShowing()) {
imageRecord.setVisibility(View.VISIBLE);
imageRecord.setImageResource(R.drawable.icon_dialog_cancel);
imageVolume.setVisibility(View.GONE);
textHint.setVisibility(View.VISIBLE);
textHint.setText("松开手指,取消发送");
}
}
public void stateLengthShort() {
if (dialog != null && dialog.isShowing()) {
imageRecord.setVisibility(View.VISIBLE);
imageRecord.setImageResource(R.drawable.icon_dialog_length_short);
imageVolume.setVisibility(View.GONE);
textHint.setVisibility(View.VISIBLE);
textHint.setText("录音时间过短");
}
}
public void dismissDialog() {
if (dialog != null && dialog.isShowing()) {
dialog.dismiss();
dialog = null;
}
}
/**
* 更新音量
*
* @param level
*/
public void updateVolumeLevel(int level) {
if (dialog != null && dialog.isShowing()) {
// imageRecord.setVisibility(View.VISIBLE);
// imageVolume.setVisibility(View.VISIBLE);
// textHint.setVisibility(View.VISIBLE);
int volumeResId = context.getResources().getIdentifier(
"icon_volume_" + level, "drawable",
context.getPackageName());
imageVolume.setImageResource(volumeResId);
}
}
}
VoiceListAdapter:
package com.zms.wechatrecorder;
import java.util.List;
import com.zms.wechatrecorder.MainActivity.Recorder;
import android.content.Context;
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;
public class VoiceListAdapter extends ArrayAdapter<Recorder> {
private List<Recorder> mDatas;
private Context context;
private int minItemWidth;
private int maxItemWidth;
private LayoutInflater inflater;
public VoiceListAdapter(Context context, List<Recorder> datas) {
super(context, -1, datas);
this.context = context;
mDatas = datas;
WindowManager wm = (WindowManager) context
.getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics outMetrics = new DisplayMetrics();
wm.getDefaultDisplay().getMetrics(outMetrics);
maxItemWidth = (int) (outMetrics.widthPixels * 0.8);
maxItemWidth = (int) (outMetrics.widthPixels * 0.2);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
inflater = LayoutInflater.from(getContext());
convertView = inflater.inflate(R.layout.list_item_voice, parent,
false);
holder = new ViewHolder();
holder.seconds = (TextView) convertView
.findViewById(R.id.textLength);
holder.length = convertView.findViewById(R.id.voiceAnim);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.seconds.setText(Math.round(getItem(position).audioLength) + "\"");
// ViewGroup.LayoutParams params = holder.length.getLayoutParams();
// params.width = (int) (minItemWidth + maxItemWidth / 60f
// * getItem(position).audioLength);
// holder.length.setLayoutParams(params);
return convertView;
}
private class ViewHolder {
TextView seconds;
View length;
}
}
MyAudioManager:
package com.zms.wechatrecorder;
import java.io.File;
import java.io.IOException;
import java.util.UUID;
import android.media.MediaRecorder;
public class MyAudioManager {
private MediaRecorder mediaRecorder;
private String dir;
private String currentFilePath;
private static MyAudioManager audioInstance; // 单例
public boolean isPrepared = false;
private MyAudioManager(String dir) {
this.dir = dir;
}
public interface AudioStateChangeListener {
void wellPrepared();
}
public AudioStateChangeListener audioStateChangeListener;
public void setOnAudioStateChangeListener(AudioStateChangeListener listener) {
audioStateChangeListener = listener;
}
public static MyAudioManager getInstance(String dir) {
if (audioInstance == null) {
synchronized (MyAudioManager.class) {
if (audioInstance == null) {
audioInstance = new MyAudioManager(dir);
}
}
}
return audioInstance;
}
public void prepareAudio() {
try {
isPrepared = false;
File fileDir = new File(dir);
if (!fileDir.exists())
fileDir.mkdirs();
String fileName = generateFileName();
File file = new File(fileDir, fileName);
currentFilePath = file.getAbsolutePath();
mediaRecorder = new MediaRecorder();
// 设置输出文件
mediaRecorder.setOutputFile(file.getAbsolutePath());
// 设置音频源
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
// 设置音频格式
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.AMR_NB);
// 设置音频编码
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
mediaRecorder.prepare();
mediaRecorder.start();
// 准备结束
isPrepared = true;
//
if (audioStateChangeListener != null) {
audioStateChangeListener.wellPrepared();
}
} catch (IllegalStateException | IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* 随机生成文件名称
*
* @return
*/
private String generateFileName() {
return UUID.randomUUID().toString() + ".amr";
}
public int getVoiceLevel(int maxLevel) {
if (isPrepared) {
try {
// 振幅范围mediaRecorder.getMaxAmplitude():1-32767
return maxLevel * mediaRecorder.getMaxAmplitude() / 32768 + 1;
} catch (Exception e) {
}
}
return 1;
}
public void release() {
mediaRecorder.stop();
mediaRecorder.release();
mediaRecorder = null;
}
public void cancel() {
release();
if (currentFilePath != null) {
File file = new File(currentFilePath);
file.delete();
currentFilePath = null;
}
}
public String getCurrentPath() {
return currentFilePath;
}
}
MediaManager
package com.zms.wechatrecorder;
import java.io.IOException;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaPlayer.OnErrorListener;
public class MediaManager {
private static MediaPlayer mediaPlayer;
private static boolean isPause;
public static void playSound(String filePath,
OnCompletionListener onCompletionListener) {
if (mediaPlayer == null) {
mediaPlayer = new MediaPlayer();
mediaPlayer.setOnErrorListener(new OnErrorListener() {
@Override
public boolean onError(MediaPlayer mp, int what, int extra) {
mediaPlayer.reset();
return false;
}
});
} else {
mediaPlayer.reset();
}
try {
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mediaPlayer.setOnCompletionListener(onCompletionListener);
mediaPlayer.setDataSource(filePath);
mediaPlayer.prepare();
mediaPlayer.start();
} catch (IllegalArgumentException | SecurityException
| IllegalStateException | IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void pause() {
if (mediaPlayer != null && mediaPlayer.isPlaying()) {
mediaPlayer.pause();
isPause = true;
}
}
public static void resume(){
if (mediaPlayer != null && isPause) {
mediaPlayer.start();
isPause = false;
}
}
public static void release(){
if (mediaPlayer != null) {
mediaPlayer.release();
mediaPlayer = null;
}
}
}
感谢hyman在慕课网的教程:
Android仿微信语音聊天
时间: 2024-11-16 07:21:09