android 悬浮窗demo,一个android悬浮窗的语音识别demo
Android桌面悬浮窗实现比较简单,本篇以一个语音识别,语义理解的demo来演示如何实现android悬浮窗。桌面上待机的时候,悬浮窗吸附在边上拖动远离屏幕边缘时图标变大,松开自动跑到屏幕边缘,距离屏幕左右边缘靠近哪边吸附哪边点击悬浮图标时,启动录音说完后可以点击左button,上传录音给服务器等待处理返回结果服务器返回结果后自动跳转到应用界面,本例用的是在线听书,跳转到在线听书的界面1.Flo
Android桌面悬浮窗实现比较简单,本篇以一个语音识别,语义理解的demo来演示如何实现android悬浮窗。
桌面上待机的时候,悬浮窗吸附在边上
拖动远离屏幕边缘时图标变大,松开自动跑到屏幕边缘,距离屏幕左右边缘靠近哪边吸附哪边
点击悬浮图标时,启动录音
说完后可以点击左button,上传录音给服务器等待处理返回结果
服务器返回结果后自动跳转到应用界面,本例用的是在线听书,跳转到在线听书的界面
1.FloatViewIdle
定义一个FloatViewIdle类,如下是该类的单例模式
publicstaticsynchronizedFloatViewIdlegetInstance(Context context)
{
if(floatViewManager ==null)
{
mContext =context.getApplicationContext();;
winManager = (WindowManager)
mContext.getSystemService(Context.WINDOW_SERVICE);
displayWidth =winManager.getDefaultDisplay().getWidth();
displayHeight =winManager.getDefaultDisplay().getHeight();
floatViewManager =newFloatViewIdle();
}
returnfloatViewManager;
}
利用winManager的addview方法,把自定义的floatview添加到屏幕中,那么就会在任何界面显示该floatview,然后再屏蔽非待机界面隐藏floatview,这样就只有待机显示悬浮窗了。
定义两个自定义view,分别是FloatIconView和FloatRecordView,前者就是待机看到的小icon图标,后者是点击这个icon图标后展示的录音的那个界面。
下面来看下怎么定义的FloatIconView
classFloatIconView extends LinearLayout{
privateintmWidth;
privateintmHeight;
privateintpreX;
privateintpreY;
privateintx;
privateinty;
publicboolean isMove;
publicboolean isMoveToEdge;
privateFloatViewIdle manager;
publicImageView imgv_icon_left;
publicImageView imgv_icon_center;
publicImageView imgv_icon_right;
publicintmWidthSide;
publicFloatIconView(Context context) {
super(context);
View view = LayoutInflater.from(mContext).
inflate(R.layout.layout_floatview_icon,this);
LinearLayout layout_content =
(LinearLayout)view.findViewById(R.id.layout_content);
imgv_icon_left = (ImageView)view.findViewById(R.id.imgv_icon_left);
imgv_icon_center = (ImageView)view.findViewById(R.id.imgv_icon_center);
imgv_icon_right = (ImageView)view.findViewById(R.id.imgv_icon_right);
imgv_icon_left.setVisibility(View.GONE);
imgv_icon_center.setVisibility(View.GONE);
mWidth = layout_content.getWidth();
mHeight =layout_content.getHeight();
if((mWidth ==0)||(mHeight ==0))
{
inttemp = DensityUtil.dip2px(mContext,icon_width);
mHeight = temp;
icon_width_side_temp =DensityUtil.dip2px(mContext, icon_width_side);
mWidth = icon_width_side_temp;
}
manager =FloatViewIdle.getInstance(mContext);
if(params!=null)
{
params.x = displayWidth -icon_width_side_temp;
params.y = displayHeight/2;
}
}
publicintgetFloatViewWidth()
{
returnmWidth;
}
publicintgetFloatViewHeight()
{
returnmHeight;
}
@Override
publicboolean onTouchEvent(MotionEventevent)
{
switch(event.getAction())
{
caseMotionEvent.ACTION_DOWN:
preX = (int)event.getRawX();
preY = (int)event.getRawY();
isMove =false;
if(params.width == icon_width_side_temp)
handler.sendMessage(handler.obtainMessage(
MSG_UPDATE_FLOAT_VIEW_AFTER_CHANGED,3,0));
break;
caseMotionEvent.ACTION_UP:
if(isMoveToEdge ==true)
{
if(params.width == icon_width_side_temp)
handler.sendMessage(handler.obtainMessage(
MSG_UPDATE_FLOAT_VIEW_AFTER_CHANGED,3,0));
handler.sendMessage(handler.obtainMessage(
MSG_FLOAT_VIEW_MOVE_TO_EDGE,this));
}
break;
caseMotionEvent.ACTION_MOVE:
x = (int)event.getRawX();
y = (int)event.getRawY();
if(Math.abs(x-preX)>1||Math.abs(y-preY)>1)
{
isMoveToEdge =true;
}
if(Math.abs(x-preX)>5||Math.abs(y-preY)>5)
isMove =true;
if(params.width == icon_width_side_temp)
handler.sendMessage(handler.obtainMessage(
MSG_UPDATE_FLOAT_VIEW_AFTER_CHANGED,3,0));
manager.move(this, x-preX,y-preY);
preX = x;
preY = y;
break;
}
returnsuper.onTouchEvent(event);
}
}
通过layout文件生成一个FloatIconView,在onTouchEvent函数中当按下的时候,发送消息更新悬浮view,抬起即up事件时先更新悬浮view,然后再显示吸附到边上的动画。当move的时候,判断每次位移至少5和像素则更新view位置,这样不断move不断更新就会形成连续的画面。
另一个FloatRecordView(录音的悬浮窗)道理相同,这里就不贴代码了,有兴趣可以下载demo自己编译跑一下。
在FloatIconView中定义一个handler,用于接收消息处理悬浮窗更新位置和吸附的动画
privatevoidinitHandler(){
handler =newHandler(){
@Override
publicvoidhandleMessage(Message msg)
{
switch(msg.what)
{
caseMSG_REFRESH_VOLUME:
if(floatRecordView
!=null)
floatRecordView.updateVolume((int)msg.arg1);
break;
caseMSG_FLOAT_VIEW_MOVE_TO_EDGE:
//更新悬浮窗位置的动画
moveAnimation((View)msg.obj);
break;
caseMSG_REMOVE_FLOAT_VIEW:
if(msg.arg1 ==1)
{//此时已有floatview是floatIconView
if(floatIconView
!=null)
{//先移除一个floatview
winManager.removeView(floatIconView);
floatIconView =null;
floatRecordView= getFloatRecordView();
if(floatRecordView
!=null)
{
if(floatRecordView.getParent()
==null)
{//再加入一个新的floatview
winManager.addView(floatRecordView,params);
floatViewType =FLOAT_RECORD_VIEW_TYPE;
}
if(mHandler !=null)
{
mHandler.sendMessage(mHandler.obtainMessage(
MessageConst.CLIENT_ACTION_START_CAPTURE));
IS_RECORD_FROM_FLOAT_VIEW_IDLE =true;
}
}
}
}
else
{//此时已有floatview是floatRecordView即录音的floatview
if(floatRecordView
!=null)
{//先移除一个floatview
winManager.removeView(floatRecordView);
floatRecordView=null;
}
floatIconView =getFloatIconView();
if(floatIconView
!=null)
{
if(floatIconView.getParent()
==null)
{/再加入一个新的floatview
winManager.addView(floatIconView,params);
floatViewType =FLOAT_ICON_VIEW_TYPE;
setViewOnClickListener(floatIconView);
}
//可能需要有吸附动画
moveAnimation(floatIconView);
}
}
break;
caseMSG_UPDATE_VIEW_SENDING_TO_SERVER:
if(floatRecordView
!=null)
{
floatRecordView.updateSendingToServerView();
floatRecordView.setTitle("努力识别中");
}
break;
caseMSG_UPDATE_ROTATE_VIEW:
if(floatRecordView
!=null)
{
floatRecordView.rotateview.startRotate();
}
break;
caseMSG_UPDATE_FLOAT_VIEW_AFTER_CHANGED:
//1,2是吸附到左边还是右边,3是拖动到中间显示放大的悬浮窗icon
if(msg.arg1 ==1)
changeFloatIconToSide(false);
elseif(msg.arg1 ==2)
changeFloatIconToSide(true);
elseif(msg.arg1 ==3)
changeFloatIconToNormal();
break;
caseMSG_UPDATE_FLOAT_VIEW_ON_SIDE:
if(msg.arg1 ==1)
updateFloatIconOnSide(true);
elseif(msg.arg1 ==2)
updateFloatIconOnSide(false);
break;
caseMSG_START_ACTIVITY:
hide();
Intent intent =newIntent(mContext,MusicActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra(START_FROM_FLOAT_VIEW,true);
IS_START_FROM_FLOAT_VIEW_IDLE =true;
mContext.startActivity(intent);
break;
}
}
};
}
那么,怎样做到点击吸附屏幕边缘的悬浮按钮,切换成录音的悬浮窗呢?
publicvoidshow()
{
isHide =false;
floatIconView = getFloatIconView();
if(floatIconView !=null)
{
if(floatIconView.getParent() ==null)
{
winManager.addView(floatIconView,params);
floatViewType =FLOAT_ICON_VIEW_TYPE;
}
if(floatRecordView !=null)
{
handler.sendMessage(handler.obtainMessage(
MSG_REMOVE_FLOAT_VIEW,2,0));
}
floatIconView.setOnClickListener(newOnClickListener(){
@Override
publicvoidonClick(View v) {
if(floatIconView.isMove ||floatIconView.isMoveToEdge)
{
floatIconView.isMove =false;
return;
}
winManager.removeView(floatIconView);
floatIconView =null;
floatRecordView =getFloatRecordView();
if(floatRecordView !=null)
{
if(floatRecordView.getParent()
==null)
{
winManager.addView(floatRecordView,params);
floatViewType =FLOAT_RECORD_VIEW_TYPE;
}
if(mHandler !=null)
{
mHandler.sendMessage(mHandler.obtainMessage(
MessageConst.CLIENT_ACTION_START_CAPTURE));
IS_RECORD_FROM_FLOAT_VIEW_IDLE =true;
}
}
}
});
}
}
在show函数中,设置了floatIconView的点击事件,移除小的悬浮吸附按钮,加入录音的悬浮窗view并启动录音。
2.FloatViewIdleService
为什么要定义这个service?
这个service用途是,定时扫描是否在待机桌面,如果是待机桌面则显示floatview,否则隐藏。
publicclassFloatViewIdleServiceextendsService{
privatestaticHandler mHandler;
privateFloatViewIdle floatViewIdle;
privatefinalstaticintREFRESH_FLOAT_VIEW =1;
privatebooleanis_vertical =true;
@Override
publicvoidonCreate() {
super.onCreate();
initHandler();
}
@Override
publicintonStartCommand(Intent intent,intflags,intstartId) {
mHandler.sendMessageDelayed(mHandler.obtainMessage(REFRESH_FLOAT_VIEW),500);
FloatViewIdle.IS_START_FROM_FLOAT_VIEW_IDLE =false;
is_vertical =true;
returnSTART_STICKY;
}
protectedvoidinitHandler() {
mHandler =newHandler() {
@Override
publicvoidhandleMessage(Message msg) {
switch(msg.what) {
caseREFRESH_FLOAT_VIEW://1s发送一次更新floatview消息
updateFloatView();
mHandler.sendMessageDelayed(
mHandler.obtainMessage(REFRESH_FLOAT_VIEW),1000);
break;
}
}
};
}
privatevoidupdateFloatView()
{
booleanisOnIdle = isHome();//判断是否在待机界面
floatViewIdle =FloatViewIdle.getInstance(FloatViewIdleService.this);
if(isOnIdle)
{//待机界面则显示floatview
if(floatViewIdle.getFloatViewType() ==0)
{
floatViewIdle.show();
}
elseif(floatViewIdle.getFloatViewType() ==
floatViewIdle.FLOAT_ICON_VIEW_TYPE||
floatViewIdle.getFloatViewType() ==
floatViewIdle.FLOAT_RECORD_VIEW_TYPE)
{
if(this.getResources().getConfiguration().orientation==
Configuration.ORIENTATION_LANDSCAPE)
{
if(is_vertical ==true)
{
floatViewIdle.swapWidthAndHeight();
is_vertical =false;
}
}
elseif(this.getResources().getConfiguration().orientation==
Configuration.ORIENTATION_PORTRAIT)
{
if(is_vertical ==false)
{
floatViewIdle.swapWidthAndHeight();
is_vertical =true;
}
}
}
}
else
{//否则隐藏floatview
floatViewIdle.hide();
}
}
privatebooleanisHome()
{
ActivityManager mActivityManager =(ActivityManager)
getSystemService(Context.ACTIVITY_SERVICE);
List rti =mActivityManager.getRunningTasks(1);
try{
if(rti.size() ==0)
{
returntrue;
}else
{
if(rti.get(0).topActivity.getPackageName().
equals("com.olami.floatviewdemo"))
returnfalse;
else
returngetHomes().contains(rti.get(0).topActivity.getPackageName());
}
}
catch(Exception e)
{
returntrue;
}
}
privateList getHomes()
{
List names =newArrayList();
PackageManager packageManager =this.getPackageManager();
Intent intent =newIntent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
List resolveInfo =packageManager.queryIntentActivities(intent,
PackageManager.MATCH_DEFAULT_ONLY);
for(ResolveInfo ri : resolveInfo) {
names.add(ri.activityInfo.packageName);
}
returnnames;
}
@Override
publicvoidonDestroy() {
super.onDestroy();
if(floatViewIdle !=null)
floatViewIdle.setFloatViewType(0);
}
@Override
publicIBinder onBind(Intent intent) {
returnnull;
}
}
3.启动语音识别
在另一个VoiceSdkService(另一个处理录音服务业务的service)中,当接收到悬浮窗按钮点击事件消息时,则启动录音服务,录音结束后会在onResult回调中收到服务器返回的结果。
本例用的是olami语音识别,语义理解引擎,olami支持强大的用户自定义语义,能更好的解决语义理解。
比如同义理解的时候,我要听三国演义,我想听三国演义,听三国演义这本书,类似的说法有很多,olmai就可以为你解决这类的语义理解,olami语音识别引擎使用比较简单,只需要简单的初始化,然后设置好回调listener,在回调的时候处理服务器返回的json字符串即可,当然语义还是要用户自己定义的。
publicvoidinit()
{
initHandler();
mOlamiVoiceRecognizer =newOlamiVoiceRecognizer(VoiceSdkService.this);
TelephonyManagertelephonyManager=(TelephonyManager)this.getSystemService(
(this.getBaseContext().TELEPHONY_SERVICE);
String imei=telephonyManager.getDeviceId();
mOlamiVoiceRecognizer.init(imei);//设置身份标识,可以填null
mOlamiVoiceRecognizer.setListener(mOlamiVoiceRecognizerListener);//设置识别结果回调listener
mOlamiVoiceRecognizer.setLocalization(
OlamiVoiceRecognizer.LANGUAGE_SIMPLIFIED_CHINESE);//设置支持的语音类型,优先选择中文简体
mOlamiVoiceRecognizer.setAuthorization("51a4bb56ba954655a4fc834bfdc46af1",
"asr","68bff251789b426896e70e888f919a6d","nli");
//注册Appkey,在olami官网注册应用后生成的appkey
//注册api,请直接填写“asr”,标识语音识别类型
//注册secret,在olami官网注册应用后生成的secret
//注册seq,请填写“nli”
mOlamiVoiceRecognizer.setVADTailTimeout(2000);//录音时尾音结束时间,建议填//2000ms
//设置经纬度信息,不愿上传位置信息,可以填0
mOlamiVoiceRecognizer.setLatitudeAndLongitude(31.155364678184498,121.34882432933009);
在VoiceSdkService中定义OlamiVoiceRecognizerListener用于处理录音时的回调
onError(int errCode)//出错回调,可以对比官方文档错误码看是什么错误
onEndOfSpeech()//录音结束
onBeginningOfSpeech()//录音开始
onResult(String result, int type)//result是识别结果JSON字符串
onCancel()//取消识别,不会再返回识别结果
onUpdateVolume(int volume)//录音时的音量,1-12个级别大小音量
本文用的是在线听书的例子,当收到服务器返回的消息是,进入如下函数:
在下面的函数中,通过解析服务器返回的json字符串,提取用户需要的语义理解字段进行处理
privatevoidprocessServiceMessage(Stringmessage)
{
Stringinput=null;
StringserverMessage=null;
try{
JSONObject jsonObject=newJSONObject(message);
JSONArray jArrayNli=jsonObject.optJSONObject("data").optJSONArray("nli");
JSONObject jObj=jArrayNli.optJSONObject(0);
JSONArray jArraySemantic=null;
if(message.contains("semantic"))
jArraySemantic=jObj.getJSONArray("semantic");
else{
input=jsonObject.optJSONObject("data").optJSONObject("asr").
optString("result");
sendMessageToActivity(MessageConst.
CLIENT_ACTION_UPDATA_INPUT_TEXT,0,0,null, input);
serverMessage=jObj.optJSONObject("desc_obj").opt("result").toString();
sendMessageToActivity(MessageConst.
CLIENT_ACTION_UPDATA_SERVER_MESSAGE,0,0,null,serverMessage);
return;
}
JSONObject jObjSemantic;
JSONArray jArraySlots;
JSONArray jArrayModifier;
Stringtype=null;
StringsongName=null;
Stringsinger=null;
if(jObj!=null) {
type=jObj.optString("type");
if("musiccontrol".equals(type))
{
jObjSemantic=jArraySemantic.optJSONObject(0);
input=jObjSemantic.optString("input");
jArraySlots=jObjSemantic.optJSONArray("slots");
jArrayModifier=jObjSemantic.optJSONArray("modifier");
Stringmodifier=(String)jArrayModifier.opt(0);
if((jArrayModifier!=null)&&("play".equals(modifier)))
{
if(jArraySlots!=null)
for(int i=0,k=jArraySlots.length(); i
{
JSONObject obj=jArraySlots.getJSONObject(i);
Stringname=obj.optString("name");
if("singer".equals(name))
singer=obj.optString("value");
elseif("songname".equals(name))
songName=obj.optString("value");
}
}elseif((modifier!=null)&&("stop".equals(modifier)))
{
if(mBookUtil!=null)
if(mBookUtil.isPlaying())
mBookUtil.stop();
}elseif((modifier!=null)&&("pause".equals(modifier)))
{
if(mBookUtil!=null)
if(mBookUtil.isPlaying())
mBookUtil.pause();
}elseif((modifier!=null)&&("resume_play".equals(modifier)))
{
if(mBookUtil!=null)
mBookUtil.resumePlay();
}elseif((modifier!=null)&&("add_volume".equals(modifier)))
{
if(mBookUtil!=null)
mBookUtil.addVolume();
}elseif((modifier!=null)&&("del_volume".equals(modifier)))
{
if(mBookUtil!=null)
mBookUtil.delVolume();
}elseif((modifier!=null)&&("next".equals(modifier)))
{
if(mBookUtil!=null)
mBookUtil.next();
}elseif((modifier!=null)&&("previous".equals(modifier)))
{
if(mBookUtil!=null)
mBookUtil.prev();
}elseif((modifier!=null)&&("play_index".equals(modifier)))
{
int position=0;
if(jArraySlots!=null)
for(int i=0,k=jArraySlots.length(); i
{
JSONObjectobj=jArraySlots.getJSONObject(i);
JSONObjectjNumDetial=obj.getJSONObject("num_detail");
Stringindex=jNumDetial.optString("recommend_value");
position=Integer.parseInt(index)-1;
}
if(mBookUtil!=null)
mBookUtil.skipTo(position);
}
}
}
if(songName!=null)
{
if(singer!=null)
{
}else{
mBookUtil.searchBookAndPlay(songName,0,0);
}
}elseif(singer!=null)
{
mBookUtil.searchBookAndPlay(songName,0,0);
}
serverMessage=jObj.optJSONObject("desc_obj").opt("result").toString();
}
catch (Exception e)
{
e.printStackTrace();
}
//发送消息更新语音识别的文字
sendMessageToActivity(MessageConst.CLIENT_ACTION_UPDATA_INPUT_TEXT,0,0,null, input);
//发送消息更新服务器返回的结果字符串
sendMessageToActivity(MessageConst.CLIENT_ACTION_UPDATA_SERVER_MESSAGE,
0,0,null,serverMessage);
}
以我要听三国演义这句语音,服务器返回的数据如下:
{
"data": {
"asr": {
"result":"我要听三国演义",
"speech_status":0,
"final":true,
"status":0
},
"nli": [
{
"desc_obj": {
"result":"正在努力搜索中,请稍等",
"status":0
},
"semantic": [
{
"app":"musiccontrol",
"input":"我要听三国演义",
"slots": [
{
"name":"songname",
"value":"三国演义"
}
],
"modifier": [
"play"
],
"customer":"58df512384ae11f0bb7b487e"
}
],
"type":"musiccontrol"
}
]
},
"status":"ok"
}
1)解析出nli中type类型是musiccontrol,这是语法返回app的类型,而这个在线听书的demo只关心musiccontrol这个app类型,其他的忽略。
2)用户说的话转成文字是在asr中的result中获取
3)在nli中的semantic中,input值是用户说的话,同asr中的result。
modifier代表返回的行为动作,此处可以看到是play就是要求播放,slots中的数据表示歌曲名称是三国演义。
那么动作是play,内容是歌曲名称是三国演义,在这个demo中调用
mBookUtil.searchBookAndPlay(songName,0,0);会先查询,查询到结果会再发播放消息要求播放,我要听三国演义这个流程就走完了。
更多推荐
所有评论(0)