Design _android of Android imitation micro-letter voice Chat interface

A period of time did not watch the video, last night smoked a little time, and saw the next big God video tutorial, and took time to write a study record. The code is basically the same as the teacher said, and there are many similar blogs on the internet. I just wrote it in the Androidstudio environment.

--The main interface code--

 public class Mainactivity extends activity {private ListView Mlistview;
 Private arrayadapter<recorder> Madapter;
 Private list<recorder> Mdatas = new arraylist<recorder> ();
 Private Audiorecorderbutton Maudiorecorderbutton;

 Private View Animview;
  @Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);
  Setcontentview (R.layout.activity_main);
  Mlistview = (ListView) Findviewbyid (R.id.id_listview);
  Maudiorecorderbutton = (Audiorecorderbutton) Findviewbyid (R.id.id_recorder_button); Maudiorecorderbutton.setfinishrecordercallback (New Audiorecorderbutton.audiofinishrecordercallback () {public void
    OnFinish (float seconds, String FilePath) {Recorder recorder = new recorder (seconds, filePath);
    Mdatas.add (recorder);
    Update Data madapter.notifydatasetchanged ();
   Set Position mlistview.setselection (Mdatas.size ()-1);

  }
  });
  Madapter = new Recoderadapter (this, mdatas); Mlistview.setadapter (Madapter); ListView Item Click event Mlistview.setonitemclicklistener (New Onitemclicklistener () {public void Onitemclick (Adapterview <?> arg0, view view, int position, long ID {//Sound playback animation if (Animview!= null) {Animview.setbackgroundr
     Esource (R.DRAWABLE.ADJ);
    Animview = null;
    } Animview = View.findviewbyid (R.id.id_recoder_anim);
    Animview.setbackgroundresource (R.drawable.play_anim);
    animationdrawable animation = (animationdrawable) animview.getbackground ();
    Animation.start (); Play the recording Mediaplayermanager.playsound (Mdatas.get (position). FilePath, New Mediaplayer.oncompletionlistener () {Pub
     LIC void Oncompletion (MediaPlayer MP) {///after playback is complete modify the picture Animview.setbackgroundresource (R.DRAWABLE.ADJ);
   }
    });
 }
  });
  } @Override protected void OnPause () {super.onpause ();
 Mediaplayermanager.pause ();
  } @Override protected void Onresume () {super.onresume ();
 Mediaplayermanager.resume (); } @Override Protectedvoid OnDestroy () {Super.ondestroy ();
 Mediaplayermanager.release ();

 }

-Customize button ——-

/** * @param * @author LDM * @description Custom button * @time 2016/6/25 9:26/public class Audiorecorderbutton Exten
 DS button {//button normal state (default) private static final int state_normal = 1;
 Recording status private static final int state_recording = 2;
 Recording cancellation State private static final int state_cancel = 3;
 Record current state private int mcurrentstate = State_normal;
 Whether to start recording flag Private Boolean isrecording = false;
 Determine whether to remove the private static final int distance_y_cancel = 50 by sliding the distance on the button;
 dialog box management tool class private Dialogmanager mdialogmanager;
 Recording management tool class private Audiomanager maudiomanager;
 Record recording time private float mtime;
 Whether to trigger Longclick private Boolean mready;
 Recording preparation private static final int msg_audio_prepared = 0x110;
 Volume changes private static final int msg_voice_changed = 0x111;

 Cancel the prompt dialog box private static final int msg_dialog_dimiss = 0x112; /** * @description Get volume size thread * @author LDM * @time 2016/6/25 9:30 * @param * * Private Runnable MGETVOICELEVELRU

nnable = new Runnable () {  public void Run () {while (isrecording) {//judge is recording try {thread.sleep (100); Mtime + + 0.1f;//recording time calculation mhandler.sendemptymessage (msg_voice_changed);//Send message every 0.1 seconds catch (Interruptedexception e)
    {E.printstacktrace ();

 }
   }
  }
 };
    Private Handler Mhandler = new Handler () {@Override public void Handlemessage (msg) {switch (msg.what) {
     Case msg_audio_prepared://Display dialog box Mdialogmanager.showrecordingdialog ();
     IsRecording = true;
     Open a thread to calculate the recording time new Thread (mgetvoicelevelrunnable). Start ();
    Break
     Case msg_voice_changed://Update Sound Mdialogmanager.updatevoicelevel (Maudiomanager.getvoicelevel (7));
    Break
     Case Msg_dialog_dimiss://Cancel dialog box Mdialogmanager.dimissdialog ();
   Break
  Super.handlemessage (msg);


 }
 };
  Public Audiorecorderbutton (context, AttributeSet attrs) {Super (context, attrs);
  Mdialogmanager = new Dialogmanager (context); The recording file holds the address String dir = Environment.getexternalstoragedirectory () + "/ldm_voice";
  Maudiomanager = Audiomanager.getinstance (dir); Maudiomanager.setonaudiostatelistener (New Audiomanager.audiostatelistener () {public void wellprepared () {MHandler
   . Sendemptymessage (msg_audio_prepared);

  }
  }); Because this class is a button, you add a listener event Setonlongclicklistener (new Onlongclicklistener () {public boolean onlongclick (View v) in the construction method
    {Mready = true;
    Maudiomanager.prepareaudio ();
   return false;
 }
  });
 The public Audiorecorderbutton {This (context, NULL); /** * @description Callback after completion of recording * @author LDM * @time 2016/6/25 11:18 * @param * * Public interface Audiofinishre
 cordercallback {void onfinish (float seconds, String FilePath);

 Private Audiofinishrecordercallback Finishrecordercallback;
 public void Setfinishrecordercallback (Audiofinishrecordercallback listener) {finishrecordercallback = listener; /** * @param * @description ontouchevent event for button processing * @author LDM * @time 2016/6/25 9:35 * * @Override public boolean ontouchevent (Motionevent event) {//Get touchevent status
  int action = Event.getaction ();
  Gets the x-axis coordinate int x = (int) event.getx ();

  Gets the y-coordinate int y = (int) event.gety ();
    Switch (action) {case motionevent.action_down://finger press changestate (state_recording);
   Break Case motionevent.action_move://Finger Move if (isrecording) {//To determine whether or not to cancel if (wanttocancle (x, Y) in accordance with x,y coordinates) {CH
     Angestate (State_cancel);
     else {changestate (state_recording);
   }} break;
     Case motionevent.action_up://Finger Release if (!mready) {reset ();
    Return Super.ontouchevent (event);
     } if (!isrecording | | Mtime < 0.6f) {//If time is less than 0.6s, prompt recording of short mdialogmanager.tooshort ();
     Maudiomanager.cancel ();
    Delay Display dialog box mhandler.sendemptymessagedelayed (Msg_dialog_dimiss, 1000);
else if (mcurrentstate = = state_recording) {//If the status is recording, end the recording Mdialogmanager.dimissdialog ();     Maudiomanager.release ();
     if (finishrecordercallback!= null) {Finishrecordercallback.onfinish (Mtime, Maudiomanager.getcurrentfilepath ());
     } else if (mcurrentstate = state_cancel) {//Want to cancel Mdialogmanager.dimissdialog ();
    Maudiomanager.cancel ();
    Reset ();

  Break
 Return Super.ontouchevent (event);
  /** * Recovery status and sign bit/private void reset () {isrecording = false;
  Mtime = 0;
  Mready = false;
 Changestate (State_normal);
  Private Boolean wanttocancle (int x, int y) {//Exceed button width if (x < 0 | | | x > getwidth ()) {return true;
  }//exceeds the height of the button if (Y <-distance_y_cancel | | | y > getheight () + Distance_y_cancel) {return true;
 return false; /** * @param * @description Change button Display according to state * @author LDM * @time 2016/6/25 9:36/private void Changestat
   E (int state) {if (mcurrentstate!= state) {mcurrentstate = 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_cancel:setbackgroundresource (r.drawable.btn_recorder_recording);
     Mdialogmanager.wanttocancel ();
     SetText (R.string.str_recorder_want_cancel);
   Break

 }
  }
 }
}

--Dialog management tools class--

/** * @description Dialog Management Tool class * @author LDM * @time 2016/6/25 11:53 * @param/public class Dialogmanager {//Play
 Out dialog box private Dialog mdialog;
 Recording icon Private ImageView Micon;
 Volume display icon private ImageView mvoice;
 dialog box prompts the text private TextView mlable;


 Contextual object private context Mcontext;
 Public Dialogmanager {this.mcontext = context;  /** * @param * @description Display dialog box * @author LDM * @time 2016/6/25 9:56/public void Showrecordingdialog ()
  {///Sytle instantiated Dialog mdialog = new Dialog (Mcontext, R.style.audiodialog) according to the specified
  Layoutinflater inflater = Layoutinflater.from (Mcontext);
  View view = Inflater.inflate (R.layout.dialog_recorder, NULL);
  Mdialog.setcontentview (view);
  Micon = (ImageView) View.findviewbyid (R.id.id_recorder_dialog_icon);
  Mvoice = (ImageView) View.findviewbyid (R.id.id_recorder_dialog_voice);
  Mlable = (TextView) View.findviewbyid (R.id.id_recorder_dialog_label);
 Mdialog.show (); /** * @param * @description isdialog box for recording status * @author LDM * @time 2016/6/25 10:08/public void recording () {if (Mdialog!= null && Mdialo
   G.isshowing ()) {micon.setvisibility (view.visible);
   Mvoice.setvisibility (view.visible);
   Mlable.setvisibility (view.visible);
   Micon.setimageresource (R.drawable.recorder);
  Mlable.settext ("Slip on the finger, Cancel to send"); }/** * @param * @description Cancel Recording Status dialog box * @author LDM * @time 2016/6/25 10:08/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 ("Loosen the finger, Cancel to send");
  }/** * @param * @description time Too Short dialog box * @author LDM * @time 2016/6/25 10:09/public void Tooshort () {
   if (mdialog!= null && mdialog.isshowing ()) {//Display status micon.setvisibility (view.visible);
   Mvoice.setvisibility (View.gone); Mlable.setvisibility (View.VISIBLE);
   Micon.setimageresource (R.drawable.voice_to_short);
  Mlable.settext ("Recording time is too Short");
  }/** * @param * @description * @author LDM * @time 2016/6/25 Cancel (Close) dialog */public void Dimissdialog () {
   if (mdialog!= null && mdialog.isshowing ()) {//Display status Mdialog.dismiss ();
  Mdialog = null; }///Show Update Volume Level dialog box public void Updatevoicelevel (int level) {if (Mdialog!= null && mdialog.isshowing ()) {
   Display status micon.setvisibility (view.visible);
   Mvoice.setvisibility (view.visible);
   Mlable.setvisibility (view.visible); Set the ID of the picture, the sound picture we put in the drawable is in v+ number format int resid = Mcontext.getresources (). Getidentifier ("V" + level, "drawable", Mcont
   Ext.getpackagename ());
  Mvoice.setimageresource (RESID);

 }
 }

}

--Sound Playback tool class--

/** * @param * @author LDM * @description Play Sound Tool class * @time 2016/6/25 11:29/public class Mediaplayermanager {//Play
 Audio API class: MediaPlayer private static MediaPlayer Mmediaplayer;

 Whether the private static Boolean ispause is paused;  /** * @param * FilePath: File path * Oncompletionlistener: Playback complete listening * @description play sound * @author LDM * @time 2016/6/25 11:30 */public static void PlaySound (String filePath, Mediaplayer.oncompletionlistener oncompletionlistener) {if (
   Mmediaplayer = = null) {Mmediaplayer = new MediaPlayer (); Set an error listener Mmediaplayer.setonerrorlistener (new Mediaplayer.onerrorlistener () {public Boolean onError (Mediapla
     Yer arg0, int arg1, int arg2) {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 (Exception e) {}}/** * @param * @description paused * @author LDM * @time 2016/6/25 11:31/Pub Lic static void Pause () {if (Mmediaplayer!= null && mmediaplayer.isplaying ()) {//when playing Mmediaplayer.paus
   E ();
  Ispause = true;
  }/** * @param * @description Replay * @author LDM * @time 2016/6/25 11:31/public static void resume () {
   if (Mmediaplayer!= null && ispause) {Mmediaplayer.start ();
  Ispause = false; 
  }/** * @param * @description release operation * @author LDM * @time 2016/6/25 11:32/public static void releases () {
   if (Mmediaplayer!= null) {mmediaplayer.release ();
  Mmediaplayer = null;

 }
 }

-– Recording Operation Tool class-–

/** * @param * @author LDM * @description Recording Management tool class * @time 2016/6/25 9:39/public class Audiomanager {//audioreco
 RD: The main is the implementation of Edge recording Edge broadcast (AUDIORECORD+AUDIOTRACK) and real-time processing of audio.
 Advantages: Can real-time speech processing, can realize a variety of audio packaging private Mediarecorder mmediarecorder;
 Recording files private String Mdir;
 Current recording file directory private String Mcurrentfilepath;
 Single case mode private static Audiomanager minstance;

 Are you ready for private Boolean isprepare?
 Private construction Method Private Audiomanager (String dir) {mdir = dir; //Publish method to get instance public static Audiomanager getinstance (String dir) {if (minstance = null) {synchronized (audiom
    Anager.class) {if (minstance = = null) {minstance = new Audiomanager (dir);
 }} return minstance; /** * @param * @author LDM * @description Recording Preparation Complete Callback interface * @time 2016/6/25 11:14/public interface Audiosta
 Telistener {void wellprepared ();

 Public Audiostatelistener Maudiostatelistener; /** * @param * @description Settings callback method for external class calls * @author LDM * @time 2016/6/25 11: */public void Setonaudiostatelistener (Audiostatelistener listener) {Maudiostatelistener = listener;
  /** * @param * @description Recording Preparation work * @author LDM * @time 2016/6/25 11:15/public void Prepareaudio () {
   try {isprepare = false;
   File dir = new file (Mdir);
   if (!dir.exists ()) {dir.mkdirs ();//file does not exist, create file} String FileName = Generatefilename ();
   File File = new file (dir, fileName);
   Mcurrentfilepath = File.getabsolutepath ();
   Mmediarecorder = new Mediarecorder ();
   Sets the output file path Mmediarecorder.setoutputfile (File.getabsolutepath ());
   Set the Mediarecorder audio source as Microphone mmediarecorder.setaudiosource (MediaRecorder.AudioSource.MIC);
   Set the audio format to Raw_amr Mmediarecorder.setoutputformat (MediaRecorder.OutputFormat.RAW_AMR);
   Set the audio encoding to AMR_NB Mmediarecorder.setaudioencoder (MediaRecorder.AudioEncoder.AMR_NB);
   Prepare the recording mmediarecorder.prepare ();
   To start, you must call Mmediarecorder.start () after prepare ();
   Ready to complete isprepare = true; if (Maudiostatelistener!= null) {maudiostatelistener.wellprepared ();
  } catch (Exception e) {e.printstacktrace (); }/** * @param * @description randomly generated recording file name * @author LDM * @time 2016/6/25,/private String Generatefilen
 Ame () {///randomly generate different UUID return Uuid.randomuuid (). toString () + ". Amr"; /** * @param * @description Get Volume value * @author LDM * @time 2016/6/25 9:49/public int getvoicelevel (int maxl EVEL) {if (Isprepare) {try {//Getmaxamplitude returns the maximum value is 32767 return maxlevel * Mmediarecorder.getmaxamplitu
   De ()/32768 + 1;//Returns the result between 1-7} catch (Exception e) {e.printstacktrace ();
 } return 1; /** * @param * @description Releasing resources * @author LDM * @time 2016/6/25 9:50/public void release () {Mmediare
  Corder.stop ();
  Mmediarecorder.reset ();
 Mmediarecorder = null; /** * @param * @description Recording cancellation * @author LDM * @time 2016/6/25 9:51/public void Cancel ()
  ; if (McurrentfilEpath!= null) {//Cancel the recording after deleting the corresponding file = new file (Mcurrentfilepath);
   File.delete ();
  Mcurrentfilepath = null; }/** * @param * @description Get current file path * @author LDM * @time 2016/6/25 9:51/public String Getcurrentfi
 Lepath () {return mcurrentfilepath;

 }
}

There are comments in the code, do not map, and micro-letter voice chat interface, so called imitation micro-letter, hehe. You can also see the effect when you run it. All code can be downloaded from here: Http://xiazai.jb51.net/201611/yuanma/AndroidWXchat (jb51.net). rar

The above is the entire content of this article, I hope to help you learn, but also hope that we support the cloud habitat community.