thinkwee
3/12/2017 - 8:05 AM
大创Android代码片段
public void AppStartCounts(Context context){
/**
* Created by Thinkwee on 2016/10/13 0013 11:12
* Parameter [context]上下文
* Return void
* CLASS:MainActivity
* FILE:MainActivity.java
* TODO:统计软件启动次数 startcounts传到个人统计页面
*/
try {
File file=new File(context.getCacheDir(),"StartCounts.txt");
if (file.exists()){
FileInputStream fis=new FileInputStream(file);
BufferedReader br=new BufferedReader(new InputStreamReader(fis));
String temp=br.readLine();
if (temp==null){
startcounts=1;
Log.i(TAG,"Startcounts文件读错误");
}
else{
startcounts=Integer.parseInt(temp);
Log.i(TAG,"第"+temp+"次启动软件");
}
fis.close();
br.close();
FileOutputStream fos=new FileOutputStream(file);
startcounts++;
fos.write(Integer.toString(startcounts).getBytes());
fos.close();
}else{
file.createNewFile();
FileOutputStream fos=new FileOutputStream(file);
Log.i(TAG,"首次创建Startcounts");
fos.write(Integer.toString(startcounts).getBytes());
fos.close();
}
} catch (IOException e) {
e.printStackTrace();
}
} public void DownloadHtml(Context context){
/**
* Created by Thinkwee on 2016/10/13 0013 11:12
* Parameter [context]上下文
* Return void
* CLASS:MainActivity
* FILE:MainActivity.java
* TODO:离线下载html
*/
try {
File file=new File(context.getCacheDir(),"DownloadHtml.txt");
if (!file.exists()){
file.delete();
}
file.createNewFile();
FileOutputStream fos=new FileOutputStream(file,false);
final TimeInfo timeinfo= new TimeInfo();
timeinfo.timesetting();
fos.write((timeinfo.Timestring+"\n").getBytes());
fos.write((htmlbody).getBytes());
Log.i(TAG,"已离线htmlbody"+ htmlbody);
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}// MediaPlayer播放Midi
public class PlayFragment extends Fragment {
private View v;
private Button bt_play,bt_stop;
private TextView tv_choosetoplay;
private MediaPlayer player;
private String TAG="MIDI";
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
v = inflater.inflate(R.layout.fragment_play, container, false);
return v;
}
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
bt_play = (Button) getActivity().findViewById(R.id.bt_play);
bt_stop = (Button) getActivity().findViewById(R.id.bt_stop);
tv_choosetoplay = (TextView) getActivity().findViewById(R.id.tv_choosetoplay);
bt_play.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (player != null){
player.pause();
}
player=MediaPlayer.create(getActivity(),R.raw.test1);
player.start();
}
});
bt_stop.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
if (player != null)
{
player.stop();
}
}
});
}// 用AudioTrack类重放录制的pcm文件
private class PlayTask extends AsyncTask<Void, Integer, Void> {
@Override
protected Void doInBackground(Void... arg0) {
isPlaying = true;
int bufferSize = AudioTrack.getMinBufferSize(frequence, channelConfig, audioEncoding);
short[] buffer = new short[bufferSize / 4];
try {
//定义输入流，将音频写入到AudioTrack类中，实现播放
DataInputStream dis = new DataInputStream(new BufferedInputStream(new FileInputStream(audioFile)));
//实例AudioTrack
AudioTrack track = new AudioTrack(AudioManager.STREAM_MUSIC, frequence, channelConfig, audioEncoding, bufferSize, AudioTrack.MODE_STREAM);
//开始播放
track.play();
//由于AudioTrack播放的是流，所以，我们需要一边播放一边读取
while (isPlaying && dis.available() > 0) {
int i = 0;
while (dis.available() > 0 && i < buffer.length) {
buffer[i] = dis.readShort();
i++;
}
//然后将数据写入到AudioTrack中
track.write(buffer, 0, buffer.length);
}
//播放结束
track.stop();
dis.close();
} catch (Exception e) {
// TODO: handle exception
}
return null;
}
}// 录制wav
// 以pcm编码保存
private class RecordTask extends AsyncTask<Void, Integer, Void> {
@Override
protected Void doInBackground(Void... arg0) {
isRecording = true;
try {
//开通输出流到指定的文件
DataOutputStream dos = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(audioFile)));
//根据定义好的几个配置，来获取合适的缓冲大小
int bufferSize = AudioRecord.getMinBufferSize(frequence, channelConfig, audioEncoding);
//实例化AudioRecord
AudioRecord record = new AudioRecord(MediaRecorder.AudioSource.MIC, frequence, channelConfig, audioEncoding, bufferSize);
//定义缓冲
short[] buffer = new short[bufferSize];
//开始录制
record.startRecording();
int r = 0; //存储录制进度
//定义循环，根据isRecording的值来判断是否继续录制
while (isRecording) {
//从bufferSize中读取字节，返回读取的short个数
//这里老是出现buffer overflow，不知道是什么原因，试了好几个值，都没用，TODO：待解决
int bufferReadResult = record.read(buffer, 0, buffer.length);
//循环将buffer中的音频数据写入到OutputStream中
for (int i = 0; i < bufferReadResult; i++) {
dos.writeShort(buffer[i]);
}
publishProgress(new Integer(r)); //向UI线程报告当前进度
r++; //自增进度值
}
//录制结束
record.stop();
Log.v("The DOS available:", "::" + audioFile.length());
dos.close();
} catch (Exception e) {
// TODO: handle exception
}
return null;
}
}// 读取之前录制的文件到FileInputStream中
// 从FileinputStream中读到缓存，再将缓存写入绑定了socket的OutputStream的DataOutputStream，上传到服务器
soc_send.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
DataOutputStream out=null;
FileInputStream reader=null;
int buffersize=20480;
int read=0;
byte[] buf = new byte[buffersize];
try {
File file = new File(Environment.getExternalStorageDirectory().getAbsolutePath()+"/data/files/recording.pcm");
reader = new FileInputStream(file);
out = new DataOutputStream(socket.getOutputStream());
while((read=reader.read(buf,0,buf.length))!=-1){
out.write(buf,0,read);
}
Log.i(TAG2,"发送文件完成");
out.flush();
socket.shutdownOutput();
} catch (IOException e) {
e.printStackTrace();
}
}
});// 新建socket在地址IPget,端口port
// msg传到handler更新用户界面提示成功连接
private class StartThread extends Thread{
@Override
public void run(){
try{
socket= new Socket(IPget,port);
if(socket.isConnected()){//成功连接获取socket对象则发送成功消息
Log.i(TAG,"isConnected");
Message msg0 = myhandler.obtainMessage();
msg0.what=0;
myhandler.sendMessage(msg0);
}
} catch (IOException e) {
Log.i(TAG,"Connect Failed");
e.printStackTrace();
}
}
} bmp = BitmapFactory.decodeStream(bis);
ByteArrayOutputStream OutPut = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.PNG, 100,OutPut);
msg.what = 5;
myhandler.sendMessage(msg);try {
StringBuilder strbuild = new StringBuilder();
int bisLength=bis.available();
byte[] byteArray=new byte[SIZE];
int tmp=0;
while((tmp=bis.read(byteArray))!=-1){
strbuild.append(new String(byteArray,0,tmp));
System.out.println("每次读取字节数量:"+tmp);
System.out.println("文件中剩余字节数:"+is.available());
}
System.out.println(String.format("缓冲区读取流返回的大小:%d",bisLength));
System.out.println("文件的内容："+strbuild.toString());
System.out.println("字符串长度:"+strbuild.toString().length());
char[] cTmp=strbuild.toString().toCharArray();
System.out.println("字符串->字符数组长度:"+cTmp.length);
Message msg = myhandler.obtainMessage();
msg.what = 1;
msg.obj = strbuild.toString();
myhandler.sendMessage(msg);
} catch (IOException e) {
e.printStackTrace();
}